# US 6,512,600 B1 · Light guide, illuminating device having the light guide, and image reading device and information processing apparatus having the illuminating device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 6,512,600 B1 - Document ID: US6512600B1 - Status: Granted - Kind: B1 - Application number: 08/948,661 - Filed: 1997-10-10 - Granted: 2003-01-28 - Earliest claimed: 1993-01-19 - Assignees: Canon Kabushiki Kaisha - Inventors: Tatsundo Kawai; Osamu Hamamoto; Shinichi Takeda; Satoshi Itabashi - Web page: https://patentgrep.com/patent/US6512600B1 ## CPC - G02B 6/0013: {Means for improving the coupling-in of light from the light source into the light guide (coupling light into light guides in general G02B6/42)} - G02B 6/0001: {specially adapted for lighting devices or systems (lighting or signalling on vehicles using light guides B60Q1/00; lighting devices for vehicle dashboards B60Q3/10; lighting devices for vehicle interior using light guides B60Q3/62; lighting devices mounted on the vehicle rear part using light guides F21S43/235; measuring arrangements having light conducting pointers G01D13/265; illumination of liquid crystal displays G02F1/1336; illuminated signs G09F13/00)} - G02B 6/0031: {Reflecting element, sheet or layer} - G02B 6/0038: {Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide} - G02B 6/0046: {Tapered light guide, e.g. wedge-shaped light guide} - G02B 6/0055: {Reflecting element, sheet or layer} - G02B 6/0061: {to provide homogeneous light output intensity} - H04N 1/02815: {Means for illuminating the original, not specific to a particular type of pick-up head} - H04N 1/0282: {Using a single or a few point light sources, e.g. a laser diode} - H04N 1/02835: {in combination with a light guide, e.g. optical fibre, glass plate (light-guides per se G02B6/00)} - H04N 1/0284: {in combination with a light integrating, concentrating or diffusing cavity} - H04N 1/02885: {Means for compensating spatially uneven illumination, e.g. an aperture arrangement} - H04N 1/0289: {Light diffusing elements, e.g. plates or filters (optical diffusing elements per se G02B5/02)} - H04N 1/03: with photodetectors arranged in a substantially linear array - H04N 1/0313: {Direct contact pick-up heads, i.e. heads having no array of elements to project the scanned image elements onto the photodectors} - H04N 1/0316: {illuminating the scanned image elements through the plane of the photodetector, e.g. back-light illumination} - H04N 1/0318: {Integral pick-up heads, i.e. self-contained heads whose basic elements are a light-source, a lens array and a photodetector array which are supported by a single-piece frame} - G02B 6/0036: {2-D arrangement of prisms, protrusions, indentations or roughened surfaces} - G02B 6/0043: {provided on the surface of the light guide} - G02B 6/10: of the optical waveguide type (G02B6/02, G02B6/24 take precedence; devices or arrangements for the control of light by electric, magnetic, electro-magnetic or acoustic means G02F1/00; transferring the modulation of modulated light G02F2/00; optical logic elements G02F3/00; optical analogue/digital converters G02F7/00) - G02B 6/42: Coupling light guides with opto-electronic elements - G02B 2006/0098: {for scanning} - H04N 2201/03112: Light source - H04N 2201/03125: Light guide upstream of the scanned picture elements - H04N 2201/03129: Transparent cover or transparent document support mounted on the head - H04N 2201/03141: Photodetector lens - H04N 2201/03145: Photodetector - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract There is disclosed an illumination device in which a light guide is adapted to emit the light from a face thereof and is provided with an area, on a face opposite to the light emitting face, for diffusing and/or reflecting the light introduced into the light guide from an end face thereof or is provided with uneven light emitting characteristics along the longitudinal direction of the light guide, and the center of the light source positioned at the end of the light guide is placed at a position aberrated from the normal line to the area, whereby attained are compactness, a low cost, a low electric power consumption, a high efficiency of utilization of the light emitted by the light source, and excellent and uniform illumination characteristics. There are also disclosed an image reading device and an information processing apparatus, equipped with the above-mentioned illumination device. ## Claims ### Claim 1 A longitudinal light guide that guides light from a light source, along a longitudinal direction of said light guide to radiate the light, comprising a longitudinal reflection member, arranged along the longitudinal direction of said light guide, that reflects the light from said light source, wherein at least in a neighborhood of said light source, a thickness of said light guide in a direction parallel to a normal line of said reflection member is different at the position of said reflection member than at the position of said light source, when viewed in the longitudinal direction of said light guide. ### Claim 2 (depends on 1) A light guide according to claim 1, wherein said reflection member includes a light-reflecting paint. ### Claim 3 (depends on 1) A light guide according to claim 1, wherein said reflection member includes a rough surface. ### Claim 4 (depends on 1) A light guide according to claim 1, wherein said reflection member includes a sawtooth-shaped surface. ### Claim 5 (depends on 1) A light guide according to claim 1, wherein said reflection member is arranged at a convex portion of said light guide. ### Claim 6 (depends on 1) A light guide according to claim 1, further comprising light gathering means for gathering the light to be radiated. ### Claim 7 (depends on 1) A light guide according to claim 1, wherein at least a part of said reflection member near the light source has a normal line, passing through a center of a width of said reflection member, that is shifted from a center of the light source, when viewed in the longitudinal direction of said light guide. ### Claim 8 (depends on 1) A light guide according to claim 1, further comprising a light gathering unit that is configured to gather the light to be radiated. ### Claim 9 An illuminating apparatus comprising: a light source that illuminates an object; and a longitudinal light guide that guides light from said light source along a longitudinal direction of said light guide to radiate the light, wherein said light guide includes a longitudinal reflection member, arranged along the longitudinal direction of said light guide, that reflects the light from said light source, and wherein at least in a neighborhood of said light source, a thickness of said light guide in a direction parallel to a normal line of said reflection member is different at the position of said reflection member than at the position of said light source, when viewed in the longitudinal direction of said light guide. ### Claim 10 (depends on 9) An apparatus according to claim 9, wherein said reflection member includes a light-reflecting paint. ### Claim 11 (depends on 9) An apparatus according to claim 9, wherein said reflection member includes a rough surface. ### Claim 12 (depends on 9) An apparatus according to claim 9, wherein said reflection member includes a sawtooth-shaped surface. ### Claim 13 (depends on 9) An apparatus according to claim 9, wherein said reflection member is arranged at a convex portion of said light guide. ### Claim 14 (depends on 9) An apparatus according to claim 9, further comprising light gathering means for gathering the light to be radiated. ### Claim 15 (depends on 9) An apparatus according to claim 9, wherein at least a part of said reflection member near the light source has a normal line, passing through a center of a width of said reflection member, that is shifted from a center of the light source, when viewed in the longitudinal direction of said light guide. ### Claim 16 (depends on 9) An apparatus according to claim 9, further comprising a light gathering unit that is configured to gather the light to be radiated. ### Claim 17 A reading device comprising: an illuminating apparatus including therein a longitudinal light guide that guides light from a light source along a longitudinal direction of said light guide to radiate the light; and a photoelectric converting device that reads an image illuminated by said illuminating apparatus and outputs an image signal, wherein said light guide includes a longitudinal reflection member, arranged along the longitudinal direction of said light guide, that reflects the light from said light source, and wherein at least in a neighborhood of said light source, a thickness of said light guide in a direction parallel to a normal line of said reflection member is different at the position of said reflection member than at the position of said light source, when viewed in the longitudinal direction of said light guide. ### Claim 18 (depends on 17) A device according to claim 17, wherein said reflection member includes a light-reflecting paint. ### Claim 19 (depends on 17) A device according to claim 17, wherein said reflection member includes a rough surface. ### Claim 20 (depends on 17) A device according to claim 17, wherein said reflection member includes a sawtooth-shaped surface. ### Claim 21 (depends on 17) A device according to claim 17, wherein said reflection member is arranged at a convex portion of said light guide. ### Claim 22 (depends on 17) A device according to claim 17, further comprising light gathering means for gathering the light to be radiated. ### Claim 23 (depends on 17) A device according to claim 17, wherein at least a part of said reflection member near the light source has a normal line, passing through a center of a width of said reflection member, that is shifted from a center of the light source, when viewed in the longitudinal direction of said light guide. ### Claim 24 (depends on 17) A device according to claim 17, further comprising a light gathering unit that is configured to gather the light to be radiated. ### Claim 25 An image processing system comprising: an illuminating apparatus including therein a longitudinal light guide that guides light from a light source along a longitudinal direction of said light guide to radiate the light; photoelectric conversion means for reading an image illuminated by said illuminating apparatus and for outputting an image signal; and control means for controlling said illuminating apparatus and said photoelectric conversion means, wherein said light guide includes a longitudinal reflection member, arranged along the longitudinal direction of said light guide, that reflects the light from said light source, and at least in a neighborhood of said light source, a thickness of said light guide in a direction parallel to a normal line of said reflection member is different at the position of said reflection member than at the position of said light source, when viewed in the longitudinal direction of said light guide. ### Claim 26 (depends on 25) A system according to claim 25, wherein said reflection member includes a light-reflecting paint. ### Claim 27 (depends on 25) A system according to claim 25, wherein said reflection member includes a rough surface. ### Claim 28 (depends on 25) A system according to claim 25, wherein said reflection member includes a sawtooth-shaped surface. ### Claim 29 (depends on 25) A system according to claim 25, wherein said reflection member is arranged at a convex portion of said light guide. ### Claim 30 (depends on 25) A system according to claim 25, further comprising light gathering means for gathering the light to be radiated. ### Claim 31 (depends on 25) A system according to claim 25, wherein at least a part of said reflection member near the light source has a normal line, passing through a center of a width of said reflection member, that is shifted from a center of the light source, when viewed in the longitudinal direction of said light guide. ### Claim 32 An image processing system comprising: an illuminating apparatus including therein a longitudinal light guide that guides light from a light source along a longitudinal direction of said light guide to radiate the light; photoelectric conversion means for reading an image illuminated by said illuminating apparatus and for outputting an image signal; and processing means for performing a predetermined processing on said image signal, wherein said light guide includes a longitudinal reflection member, arranged along the longitudinal direction of said light guide, that reflects the light from said light source, and at least in a neighborhood of said light source, a thickness of said light guide in a direction parallel to a normal line of said reflection member is different at the position of said reflection member than at the position of said light source, when viewed in the longitudinal direction of said light guide. ### Claim 33 (depends on 32) A system according to claim 32, further comprising control means for controlling said illuminating apparatus, said photoelectric conversion means and said processing means. ### Claim 34 (depends on 33) A system according to claim 33, wherein said reflection member includes a light-reflecting paint. ### Claim 35 (depends on 33) A system according to claim 33, wherein said reflection member includes a rough surface. ### Claim 36 (depends on 33) A system according to claim 33, wherein said reflection member includes a sawtooth-shaped surface. ### Claim 37 (depends on 33) A system according to claim 33, wherein said reflection member is arranged at a convex portion of said light guide. ### Claim 38 (depends on 33) A system according to claim 33, further comprising light gathering means for gathering the light to be radiated. ### Claim 39 (depends on 32) A system according to claim 32, wherein said reflection member includes a light-reflecting paint. ### Claim 40 (depends on 32) A system according to claim 32, wherein said reflection member includes a rough surface. ### Claim 41 (depends on 32) A system according to claim 32, wherein said reflection member includes a sawtooth-shaped surface. ### Claim 42 (depends on 32) A system according to claim 32, wherein said reflection member is arranged at a convex portion of said light guide. ### Claim 43 (depends on 32) A system according to claim 32, further comprising light gathering means for gathering the light to be radiated. ### Claim 44 (depends on 32) A system according to claim 32, wherein at least a part of said reflection member near the light source has a normal line, passing through a center of a width of said reflection member, that is shifted from a center of the light source, when viewed in the longitudinal direction of said light guide. ### Claim 45 An image processing system comprising: an illuminating apparatus including therein a longitudinal light guide that guides light from a light source along a longitudinal direction of said light guide to radiate the light; photoelectric conversion means for reading an image illuminated by said illuminating apparatus and for outputting an image signal, moving means for relatively moving the image and said photoelectric conversion means; and control means for controlling said illuminating apparatus, said photoelectric conversion means and said moving means, wherein said light guide includes a longitudinal reflection member, arranged along the longitudinal direction of said light guide, that reflects the light from said light source, and at least in a neighborhood of said light source, a thickness of said light guide in a direction parallel to a normal line of said reflection member is different at the position of said reflection member than at the position of said light source, when viewed in the longitudinal direction of said light guide. ### Claim 46 (depends on 45) An apparatus according to claim 45, further comprising transmission means for transmitting the image signal to an external recording medium. ### Claim 47 (depends on 46) A system according to claim 46, wherein said reflection member includes a light-reflecting paint. ### Claim 48 (depends on 46) A system according to claim 46, wherein said reflection member includes a rough surface. ### Claim 49 (depends on 46) A system according to claim 46, wherein said reflection member includes a sawtooth-shaped surface. ### Claim 50 (depends on 46) A system according to claim 46, wherein said reflection member is arranged at a convex portion of said light guide. ### Claim 51 (depends on 46) A system according to claim 46, further comprising light gathering means for gathering the light to be radiated. ### Claim 52 (depends on 45) A system according to claim 45, wherein said reflection member includes a light-reflecting paint. ### Claim 53 (depends on 45) A system according to claim 45, wherein said reflection member includes a rough surface. ### Claim 54 (depends on 45) A system according to claim 45, wherein said reflection member includes a sawtooth-shaped surface. ### Claim 55 (depends on 45) A system according to claim 45, wherein said reflection member is arranged at a convex portion of said light guide. ### Claim 56 (depends on 45) A system according to claim 45, further comprising light gathering means for gathering the light to be radiated. ### Claim 57 (depends on 45) A system according to claim 45, wherein at least a part of said reflection member near the light source has a normal line, passing through a center of a width of said reflection member, that is shifted from a center of the light source, when viewed in the longitudinal direction of said light guide. ### Claim 58 An image processing system comprising: an illuminating apparatus including therein a longitudinal light guide that guides light from a light source along a longitudinal direction of said light guide to radiate the light: photoelectric conversion means for reading an image illuminated by said illuminating apparatus and for outputting an image signal; transmission means for transmitting the image signal to an external recording medium; and control means connected to said transmission means, for controlling said illuminating apparatus and said photoelectric conversion means, wherein said light guide includes a longitudinal reflection member, arranged along the longitudinal direction of said light guide, that reflects the light from said light source, and at least in a neighborhood of said light source, a thickness of said light guide in a direction parallel to a normal line of said reflection member is different at the position of said reflection member than at the position of said light source, when viewed in the longitudinal direction of said light guide. ### Claim 59 (depends on 58) A system according to claim 58, wherein said reflection member includes a light-reflecting paint. ### Claim 60 (depends on 58) A system according to claim 58, wherein said reflection member includes a rough surface. ### Claim 61 (depends on 58) A system according to claim 58, wherein said reflection member includes a sawtooth-shaped surface. ### Claim 62 (depends on 58) A system according to claim 58, wherein said reflection member arranged at a convex portion of said light guide. ### Claim 63 (depends on 58) A system according to claim 58, further comprising light gathering means for gathering the light to be radiated. ### Claim 64 (depends on 58) A system according to claim 58, wherein at least a part of said reflection member near the light source has a normal line, passing through a center of a width of said reflection member, that is shifted from a center of the light source, when viewed in the longitudinal direction of said light guide. ### Claim 65 A longitudinal guide that guides light from a plurality of light sources along a longitudinal direction of said light guide to radiate the light, comprising a longitudinal reflection member, arranged along the longitudinal direction of said light guide, that reflects the light from said plurality of light sources, wherein at least in a neighborhood of said plurality of light sources, a thickness of said light guide in a direction parallel to a normal line of said reflection member is different at the position of said reflection member than at the position of at least one of said plurality of light sources, when viewed in the longitudinal direction of said light guide. ### Claim 66 (depends on 65) A light guide according to claim 65, wherein said reflection member has an uneven reflection diffusion characteristic along the longitudinal direction of said light guide. ### Claim 67 (depends on 66) A light guide according to claim 66, wherein said reflection member includes light-reflecting paint. ### Claim 68 (depends on 66) A light guide according to claim 66, wherein said reflection member includes a rough surface. ### Claim 69 (depends on 66) A light guide according to claim 66, wherein said reflection member includes a sawtooth-shaped surface. ### Claim 70 (depends on 66) A light guide according to claim 66, wherein said reflection member guide is arranged at a convex portion of said light guide. ### Claim 71 (depends on 65) A light guide according to claim 65, wherein said reflection member includes light-reflecting paint. ### Claim 72 (depends on 65) A light guide according to claim 65, wherein said reflection member includes a rough surface. ### Claim 73 (depends on 65) A light guide according to claim 65, wherein said reflection member includes a sawtooth-shaped surface. ### Claim 74 (depends on 65) A light guide according to claim 65, wherein said reflection member is arranged at a convex portion of said light guide. ### Claim 75 (depends on 65) A light guide according to claim 65, further comprising light gathering means for gathering the light to be radiated. ### Claim 76 (depends on 65) A longitudinal light guide according to claim 65, wherein at least a part of said reflection member near the plurality of light sources has a normal line, passing through a center of a width of said reflection member, that is shifted from a center of at least one of the plurality of light sources, when viewed in the longitudinal direction of said light guide. ### Claim 77 (depends on 65) A light guide according to claim 65, further comprising a light gathering unit that gathers the light to be radiated. ### Claim 78 An illuminating apparatus comprising: a plurality of light sources for illuminating an object; a longitudinal light guide that guides light from said plurality of light sources along a longitudinal direction of said light guide to radiate the light; and a longitudinal reflection member, arranged along the longitudinal direction of said light guide, that reflects the light from said plurality of light sources, wherein at least in a neighborhood of said plurality of light sources, a thickness of said light guide in a direction parallel to a normal line of said reflection member is different at the position of said reflection member than at the position of at least one of said plurality of light sources, when viewed in a longitudinal direction of said light guide. ### Claim 79 (depends on 78) An apparatus according to claim 78, wherein said reflection member includes light-reflecting paint. ### Claim 80 (depends on 78) An apparatus according to claim 78, wherein said reflection member includes a rough surface. ### Claim 81 (depends on 78) An apparatus according to claim 78, wherein said reflection member includes a sawtooth-shaped surface. ### Claim 82 (depends on 78) An apparatus according to claim 78, wherein said reflection member is arranged at a convex portion of said light guide. ### Claim 83 (depends on 78) An apparatus according to claim 78, further comprising light gathering means for gathering the light to be radiated. ### Claim 84 (depends on 78) An apparatus according to claim 78, wherein at least a part of said reflection member near the plurality of light sources has a normal line, passing through a center of a width of said reflection member, that is shifted from a center of one of the plurality of light sources, when viewed in the longitudinal direction of said light guide. ### Claim 85 (depends on 78) An apparatus according to claim 78, further comprising a light gathering unit that gathers the light to be radiated. ### Claim 86 A reading apparatus comprising: an illuminating device including therein a longitudinal light guide that guides light from a plurality of light sources along a longitudinal direction of said light guide to radiate the light; and a photoelectric converting device that reads an image illuminated by said illuminating device and outputs an image signal; wherein said light guide includes a reflection member, arranged along the longitudinal direction of said light guide, that reflects the light from said plurality of light sources, and wherein at least in a neighborhood of said plurality of light sources, a thickness of said light guide in a direction parallel to a normal line of said reflection member is different at the position of said reflection member than at the position of at least one of said plurality of light sources, when viewed in a longitudinal direction of said light guide. ### Claim 87 (depends on 86) An apparatus according to claim 86, wherein said reflection member includes light-reflecting paint. ### Claim 88 (depends on 86) An apparatus according to claim 86, wherein said reflection member includes a rough surface. ### Claim 89 (depends on 86) An apparatus according to claim 86, wherein said reflection member includes a sawtooth-shaped surface. ### Claim 90 (depends on 86) An apparatus according to claim 86, wherein said reflection member is arranged at a convex portion of said light guide. ### Claim 91 (depends on 86) An apparatus according to claim 86, further comprising light gathering means for gathering the light to be radiated. ### Claim 92 (depends on 86) An apparatus according to claim 86, wherein at least a part of said reflection member near the plurality of light sources has a normal line, passing through a center of a width of said reflection member, that is shifted from a center of at least one of the plurality of light sources, when viewed in the longitudinal direction of said light guide. ### Claim 93 (depends on 86) An apparatus according to claim 86, further comprising a light gathering unit that gathers the light to be radiated. ### Claim 94 An image processing system comprising: an illuminating apparatus including therein a longitudinal light guide that guides light from a plurality of light sources along a longitudinal direction of said light guide to radiate the light; photoelectric conversion means for reading an image illuminated by said illuminating apparatus and for outputting an image signal; and control means for controlling said illuminating apparatus and said photoelectric conversion means, wherein said light guide includes a reflection member, arranged along the longitudinal direction of said light guide, that reflects the light from said plurality of light sources, and wherein at least in a neighborhood of said plurality of light sources, a thickness of said light guide in a direction parallel to a normal line of said reflection member is different at the position of said reflection member than at the position of at least one of said plurality of light sources, when viewed in the longitudinal direction of said light guide. ### Claim 95 (depends on 94) A system according to claim 94, wherein said reflection member includes light-reflecting paint. ### Claim 96 (depends on 94) A system according to claim 94, wherein said reflection member includes a rough surface. ### Claim 97 (depends on 94) A system according to claim 94, wherein said reflection member includes a sawtooth-shaped surface. ### Claim 98 (depends on 94) A system according to claim 94, wherein said reflection member is arranged at a convex portion of said light guide. ### Claim 99 (depends on 94) A system according to claim 94, further comprising light gathering means for gathering the light to be radiated. ### Claim 100 (depends on 94) A system according to claim 94, wherein at least a part of said reflection member near the plurality of light sources has a normal line, passing through a center of a width of said reflection member, that is shifted from a center of at least one of the plurality of light sources, when viewed in the longitudinal direction of said light guide. ### Claim 101 An image processing system comprising: an illuminating apparatus including therein a longitudinal light guide that guides light from a plurality of light sources along a longitudinal direction of said light guide to radiate the light; photoelectric conversion means for reading an image illuminated by said illuminating apparatus and for outputting an image signal; and processing means for performing a predetermined processing on said image signal, wherein said light guide includes a reflection member, arranged along the longitudinal direction of said light guide, that reflects the light from said plurality of light sources, and wherein at least in a neighborhood of said plurality of light sources, a thickness of said light guide in a direction parallel to a normal line of said reflection member is different at the position of said reflection member than at the position of at least one of said plurality of light sources, when viewed in the longitudinal direction of said light guide. ### Claim 102 (depends on 101) A system according to claim 101, further comprising control means for controlling said illuminating apparatus, said photoelectric conversion means and said processing means. ### Claim 103 (depends on 102) A system according to claim 102, wherein said reflection member includes a light-reflecting paint. ### Claim 104 (depends on 102) A system according to claim 102, wherein said reflection member includes a rough surface. ### Claim 105 (depends on 102) A system according to claim 102, wherein said reflection member includes a sawtooth-shaped surface. ### Claim 106 (depends on 102) A system according to claim 102, wherein said reflection member is arranged at a convex portion of said light guide. ### Claim 107 (depends on 102) A system according to claim 102, further comprising light gathering means for gathering the light to be radiated. ### Claim 108 (depends on 101) A system according to claim 101, wherein said reflection member includes light-reflecting paint. ### Claim 109 (depends on 101) A system according to claim 101, wherein said reflection member includes a rough surface. ### Claim 110 (depends on 101) A system according to claim 101, wherein said reflection member includes a sawtooth-shaped surface. ### Claim 111 (depends on 101) A system according to claim 101, wherein said reflection member is arranged at a convex portion of said light guide. ### Claim 112 (depends on 101) A system according to claim 101, further comprising light gathering means for gathering the light to be radiated. ### Claim 113 (depends on 101) A system according to claim 101, wherein at least a part of said reflection member near the plurality of light sources has a normal line, passing through a center of a width of said reflection member, that is shifted from a center of at least one of the plurality of light sources, when viewed in the longitudinal direction of said light guide. ### Claim 114 An image processing system comprising: an illuminating apparatus including therein a longitudinal light guide that guides light from a plurality of light sources along a longitudinal direction of said light guide to radiate the light; photoelectric conversion means for reading an image illuminated by said illuminating apparatus and for outputting an image signal; moving means for relatively moving the image and said photoelectric conversion means; and control means for controlling said illuminating apparatus, said photoelectric conversion means and said moving means, wherein said light guide includes a reflection member, arranged along the longitudinal direction of said light guide, that reflects the light from said plurality of light sources, and wherein at least in a neighborhood of said plurality of light sources, a thickness of said light guide in a direction parallel to a normal line of said reflection member is different at the position of said reflection member than at the position of at least one of said plurality of light sources, when viewed in the longitudinal direction of said light guide. ### Claim 115 (depends on 114) A system according to claim 114, further comprising transmission means for transmitting the image signal to an external recording medium. ### Claim 116 (depends on 115) A system according to claim 115, wherein said reflection member includes a light-reflecting paint. ### Claim 117 (depends on 115) A system according to claim 115, wherein said reflection member includes a rough surface. ### Claim 118 (depends on 115) A system according to claim 115, wherein said reflection member includes a sawtooth-shaped surface. ### Claim 119 (depends on 115) A system according to claim 115, wherein said reflection member is arranged at a convex portion of said light guide. ### Claim 120 (depends on 15) A system according to claim 15, further comprising light gathering means for gathering the light to be radiated. ### Claim 121 (depends on 114) A system according to claim 114, wherein said reflection member includes a light-reflecting paint. ### Claim 122 (depends on 114) A system according to claim 114, wherein said reflection member includes a rough surface. ### Claim 123 (depends on 114) A system according to claim 114, wherein said reflection member includes a sawtooth-shaped surface. ### Claim 124 (depends on 114) A system according to claim 114, wherein said reflection member is arranged at a convex portion of said light guide. ### Claim 125 (depends on 114) A system according to claim 114, further comprising light gathering means for gathering the light to be radiated. ### Claim 126 (depends on 114) A system according to claim 114, wherein at least a part of said reflection member near the plurality of light sources has a normal line, passing through a center of a width of said reflection member, that is shifted from a center of at least one of the plurality of light sources, when viewed in the longitudinal direction of said light guide. ### Claim 127 An image processing system comprising: an illuminating apparatus including therein a longitudinal light guide that guides light from a plurality of light sources along a longitudinal direction of said light guide to radiate the light; photoelectric conversion means for reading an image illuminated by said illuminating apparatus and for outputting an image signal; transmission means for transmitting the image signal to an external recording medium; and control means connected to said transmission means, for controlling said illuminating apparatus and said photoelectric conversion means, wherein said light guide includes a reflection member, arranged along the longitudinal direction of said light guide, that reflects the light from said plurality of light sources, and wherein at least in a neighborhood of said plurality of light sources, a thickness of said light guide in a direction parallel to a normal line of said reflection member is different at the position of said reflection member than at the position of at least one of said plurality of light sources, when viewed in the longitudinal direction of said light guide. ### Claim 128 (depends on 127) A system according to claim 127, wherein said reflection member includes a light-reflecting paint. ### Claim 129 (depends on 127) A system according to claim 127, wherein said reflection member includes a rough surface. ### Claim 130 (depends on 127) A system according to claim 127, wherein said reflection member includes a sawtooth-shaped surface. ### Claim 131 (depends on 127) A system according to claim 127, wherein said reflection member is arranged at a convex portion of said light guide. ### Claim 132 (depends on 127) A system according to claim 127, further comprising light gathering means for gathering the light to be radiated. ### Claim 133 (depends on 127) A system according to claim 127, wherein at least a part of said reflection member near the plurality of light sources has a normal line, passing through a center of a width of said reflection member, that is shifted from a center of at least one of the plurality of light sources, when viewed in the longitudinal direction of said light guide. ### Claim 134 A longitudinal light guide that guides light introduced from a light source and emits the light along a longitudinal side of said light guide, said light guide having a longitudinal reflection member, arranged along said light guide, that reflects light introduced from the light source, wherein, at least at a part of said reflection member near the light source, a normal line passing through a center of a width of said reflection member is shifted from a center of the light source, when viewed in a longitudinal direction of said light guide. ### Claim 135 (depends on 134) A light guide according to claim 134, wherein said reflection member includes light-reflecting paint. ### Claim 136 (depends on 134) A light guide according to claim 134, wherein said reflection member includes a coarse surface. ### Claim 137 (depends on 134) A light guide according to claim 134, wherein said reflection member includes a sawtooth-shaped reflecting surface. ### Claim 138 A longitudinal light guide that guides light introduced from a plurality of light sources and emits the light along a longitudinal side thereof, having a longitudinal reflection member, arranged along said light guide, that reflects the light from said plurality of light sources, wherein, at least at a part of said reflection member near said plurality of light sources, a normal line passing through a center of a width of said reflection member is shifted from a center of at least one of said plurality of light sources, when viewed in a longitudinal direction of said light guide. ### Claim 139 (depends on 134) A light guide according to claim 134, wherein said reflection member includes light-reflecting paint. ### Claim 140 (depends on 134) A light guide according to claim 134, wherein said reflection member includes a coarse surface. ### Claim 141 (depends on 138) A light guide according to claim 138, wherein said reflection member includes a sawtooth-shaped reflecting surface. ### Claim 142 An image reading device comprising: (a) an illuminating device provided with a longitudinal light guide that guides light introduced from a light source and emits the light along a longitudinal side thereof, having a longitudinal reflection member, arranged along said light guide, that reflects the light from said light source, wherein, at least at a part of said reflection member near said light source, a normal line passing through a center of a width of said reflection member is shifted from a center of said light source, when viewed in a longitudinal direction of said light guide; and (b) a photoelectric converting device having a plurality of photoelectric conversion elements that read an image illuminated by said illuminating device and output an image signal. ### Claim 143 (depends on 142) A device according to claim 142, wherein said reflection member includes light-reflecting paint. ### Claim 144 (depends on 142) A device according to claim 142, wherein said reflection member includes a coarse surface. ### Claim 145 (depends on 142) A device according to claim 142, wherein said reflection member includes a sawtooth-shaped reflecting surface. ### Claim 146 An information processing apparatus comprising: (a) an illumination device provided with a longitudinal light guide that guides light introduced from a light source and emits the light along a longitudinal side thereof, having a longitudinal reflection member, arranged along said light guide, that reflects the light from said light source; wherein, at least at a part of said reflection member near said light source, a normal line passing through a center of a width of said reflection member is shifted from a center of said light source, when viewed in a longitudinal direction of said light guide; (b) a photoelectric conversion device that reads an image illuminated by said illumination device and outputs an image signal; and (c) control circuits that control said illumination device and said photoelectric conversion device. ### Claim 147 (depends on 146) An apparatus according to claim 146, wherein said reflection member includes light-reflecting paint. ### Claim 148 (depends on 146) An apparatus according to claim 146, wherein said reflection member includes a coarse surface. ### Claim 149 (depends on 146) An apparatus according to claim 146, wherein said reflection member includes a sawtooth-shaped reflecting surface. ### Claim 150 (depends on 146) An apparatus according to claim 146, wherein said light source includes a light-emitting diode. ### Claim 151 (depends on 146) An apparatus according to claim 146, further comprising communication means controlled by said control circuits. ### Claim 152 (depends on 146) An apparatus according to claim 146, further comprising a processor for converting the image signal output by said photoelectric conversion device into a different electrical signal. ### Claim 153 (depends on 152) An apparatus according to claim 152, wherein the different electrical signal is adapted for recording. ### Claim 154 (depends on 146) An apparatus according to claim 146, further comprising drive means for shifting a positional relationship between the image illuminated by said illumination device and said photoelectric conversion device. ### Claim 155 (depends on 146) An apparatus according to claim 146, further comprising a communication unit, and wherein said control circuits controls said communication unit. ### Claim 156 (depends on 146) An apparatus according to claim 146, further comprising a drive unit that shifts a positional relationship between the image illuminated by said illumination device and said photoelectric conversion device. ### Claim 157 An information transmitting apparatus comprising: (a) an illumination device provided with a longitudinal light guide that guides light introduced from a light source and emits the light along a longitudinal side thereof, having a longitudinal reflection member, arranged along said light guide, that reflects the light from said light source, wherein, at least at a part of said reflection member near said light source, a normal line passing through a center of a width of said reflection member is shifted from a center of said light source, when viewed in a longitudinal direction of said light guide; (b) a photoelectric converting device having a plurality of photoelectric conversion elements that read an image illuminated by said illumination device and form an image signal; and (c) transmission means for transmitting the image signal to an external processing apparatus for processing the image signal. ### Claim 158 (depends on 157) An apparatus according to claim 157, wherein said reflection member includes light-reflecting paint. ### Claim 159 (depends on 157) An apparatus according to claim 157, wherein said reflection member includes a coarse surface. ### Claim 160 (depends on 157) An apparatus according to claim 157, wherein said reflection member includes a sawtooth-shaped reflecting surface. ### Claim 161 (depends on 157) An apparatus according to claim 157, wherein said light source includes a light-emitting diode. ### Claim 162 (depends on 157) An apparatus according to claim 157, further comprising a processor for converting the image signal formed by said photoelectric converting device into a different electrical signal. ### Claim 163 (depends on 162) An apparatus according to claim 162, wherein the different electrical signal is adapted for recording. ### Claim 164 (depends on 157) An apparatus according to claim 157, further comprising drive means for shifting a positional relationship between the image illuminated by said illumination device and said photoelectric converting device. ### Claim 165 An information reading apparatus comprising: (a) an illumination device provided with a longitudinal light guide for guiding light introduced from a light source and for emitting the light along a longitudinal side thereof, having a longitudinal reflection member arranged along said light guide for reflecting the light from said light source, wherein, at least at a part of said reflection member near said light source, a normal line passing through a center of a width of said reflection member is shifted from a center of said light source, when viewed in a longitudinal direction of said light guide; (b) a photoelectric converting device having a plurality of photoelectric conversion elements for reading an image illuminated by said illumination device and for forming an image signal; and (c) drive means for shifting a positional relationship between the image illuminated by said illumination device and said photoelectric converting device. ### Claim 166 (depends on 165) An apparatus according to claim 165, wherein said reflection member includes light-reflecting paint. ### Claim 167 (depends on 165) An apparatus according to claim 165, wherein said reflection member includes a coarse surface. ### Claim 168 (depends on 165) An apparatus according to claim 165, wherein said reflection member includes a sawtooth-shaped reflecting surface. ### Claim 169 (depends on 165) An apparatus according to claim 165, wherein said light source includes a light-emitting diode. ### Claim 170 (depends on 165) An apparatus according to claim 165, further comprising a processor for converting the image signal formed by said photoelectric converting device into a different electrical signal. ### Claim 171 (depends on 170) An apparatus according to claim 170, wherein the different electrical signal is adapted for recording. ### Claim 172 (depends on 165) An apparatus according to claim 165, wherein said drive means includes a motor. ### Claim 173 (depends on 172) An apparatus according to claim 172, wherein said motor moves an image bearing sheet. ### Claim 174 (depends on 165) An apparatus according to claim 165, further comprising transmitting means for transmitting the image signal to an external processing apparatus for processing the image signal. ### Claim 175 An image reading device comprising: (a) an illumination device provided with a longitudinal light guide for guiding light introduced from a plurality of light sources and for emitting the light along a longitudinal side thereof, having a longitudinal reflection member arranged along said light guide for reflecting the light from said plurality of light sources, wherein, at least at a part of said reflection member near said plurality of light sources, a normal line passing through a center of a width of said reflection member is shifted from a center of at least one of said plurality of light sources, when viewed in a longitudinal direction of said light guide; and (b) a photoelectric converting device having a plurality of photoelectric conversion elements for reading an image illuminated by said illumination device and for outputting an image signal. ### Claim 176 (depends on 175) A device according to claim 175, wherein said reflection member includes light-reflecting paint. ### Claim 177 (depends on 175) A device according to claim 175, wherein said reflection member includes a coarse surface. ### Claim 178 (depends on 175) A device according to claim 175, wherein said reflection member includes a sawtooth-shaped reflecting surface. ### Claim 179 An information processing apparatus comprising: (a) an illumination device provided with a longitudinal light guide that guides light introduced from a plurality of light sources and emits the light along a longitudinal side thereof, having a longitudinal reflection member, arranged along said light guide, that reflects the light from said plurality of light sources, wherein, at least at a part of said reflection member near said plurality of light sources, a normal line passing through a center of a width of said reflection member is shifted from a center of at least one of said plurality of light sources, when viewed in a longitudinal direction of said light guide; (b) a photoelectric converting device having a plurality of photoelectric conversion elements that read an image illuminated by said illumination device and output an image signal; (c) a processor that processes the image signal output by said photoelectric converting device; and (d) control circuits that control said illumination device, said photoelectric conversion device and said processor. ### Claim 180 (depends on 179) An apparatus according to claim 179, wherein said reflection member includes light-reflecting paint. ### Claim 181 (depends on 179) An apparatus according to claim 179, wherein said reflection member includes a coarse surface. ### Claim 182 (depends on 179) An apparatus according to claim 179, wherein said reflection member includes a sawtooth-shaped reflecting surface. ### Claim 183 (depends on 179) An apparatus according to claim 179, wherein said plurality of light sources includes a light-emitting diode. ### Claim 184 (depends on 179) An apparatus according to claim 179, further comprising communication means controlled by said control circuits. ### Claim 185 (depends on 179) An apparatus according to claim 179, wherein said processor converts the image signal into a different electrical signal. ### Claim 186 (depends on 185) An apparatus according to claim 185, wherein the different electrical signal is adapted for recording. ### Claim 187 (depends on 179) An apparatus according to claim 179, further comprising drive means for shifting a positional relationship between the image illuminated by said illumination device and said photoelectric converting device. ### Claim 188 (depends on 179) An apparatus according to claim 179, further comprising a communication unit, wherein said control circuit controls said communication unit. ### Claim 189 (depends on 179) An apparatus according to claim 179, further comprising a drive unit that shifts a positional relationship between the image illuminated by said illumination device and said photoelectric converting device. ### Claim 190 An information transmitting apparatus comprising: (a) an illumination device provided with a longitudinal light guide that guides light introduced from a plurality of light sources and emits the light along a longitudinal side thereof, having a longitudinal reflection member, arranged along said light guide, that reflects the light from said plurality of light sources, wherein, at least at a part of said reflection member near said plurality of light sources, a normal line passing through a center of a width of said reflection member is shifted from a center of at least one of said plurality of light sources, when viewed in a longitudinal direction of said light guide; (b) a photoelectric converting device having a plurality of photoelectric conversion elements that read an image illuminated by said illumination device and form an image signal; and (c) transmission means for transmitting the image signal to-an external processing apparatus for processing the image signal. ### Claim 191 (depends on 190) An apparatus according to claim 190, wherein said reflection member includes light-reflecting paint. ### Claim 192 (depends on 190) An apparatus according to claim 190, wherein said reflection member includes a coarse surface. ### Claim 193 (depends on 190) An apparatus according to claim 190, wherein said reflection member includes a sawtooth-shaped reflecting surface. ### Claim 194 (depends on 190) An apparatus according to claim 190, wherein said plurality of light sources includes a light-emitting diode. ### Claim 195 (depends on 190) An apparatus according to claim 190, further comprising a processor for converting the image signal formed by said photoelectric converting device into a different electrical signal. ### Claim 196 (depends on 195) An apparatus according to claim 195, wherein the different electrical signal is adapted for recording. ### Claim 197 (depends on 190) An apparatus according to claim 190, further comprising drive means for shifting a positional relationship between the image illuminated by said illumination device and said photoelectric converting device. ### Claim 198 An information reading apparatus comprising: (a) an illumination device provided with a longitudinal light guide that guides light introduced from a plurality of light sources and emits the light along a longitudinal side thereof, having a longitudinal reflection member, arranged along said light guide, that reflects the light from said plurality of light sources, wherein, at least at a part of said reflection member near said plurality of light sources, a normal line passing through a center of a width of said reflection member is shifted from a center of at least one of said plurality of light sources, when viewed in a longitudinal direction of said light guide; (b) a photoelectric converting device having a plurality of photoelectric conversion elements that read an image illuminated by said illumination device and form an image signal; and (c) drive means for shifting a positional relationship between the image illuminated by said illumination device and said photoelectric converting device. ### Claim 199 (depends on 198) An apparatus according to claim 198, wherein said reflection member includes light-reflecting paint. ### Claim 200 (depends on 198) An apparatus according to claim 198, wherein said reflection member includes a coarse surface. ### Claim 201 (depends on 198) An apparatus according to claim 198, wherein said reflection member includes a sawtooth-shaped reflecting surface. ### Claim 202 (depends on 198) An apparatus according to claim 198, wherein said plurality of light sources includes a light-emitting diode. ### Claim 203 (depends on 198) An apparatus according to claim 198, further comprising a processor for converting the image signal formed by said photoelectric converting device into a different electrical signal. ### Claim 204 (depends on 203) An apparatus according to claim 203, wherein the different electrical signal is adapted for recording. ### Claim 205 (depends on 198) An apparatus according to claim 198, wherein said drive means includes a motor. ### Claim 206 (depends on 205) An apparatus according to claim 205, wherein said motor moves an image bearing sheet. ### Claim 207 (depends on 205) An apparatus according to claim 205, further comprising transmission means for transmitting the image signal to an external processing apparatus for processing the image signal. ### Claim 208 A light guide comprising: a longitudinal surface that extends in a longitudinal direction of said light guide; an end surface disposed at one longitudinal end of said longitudinal surface; a plurality of light sources disposed on said end surface; and a longitudinal reflection member arranged along said longitudinal surface, wherein a reflection member normal line that passes through a center of a width of said longitudinal reflection member is shifted, at least at a part of said longitudinal reflection member near said end surface, from a center of at least one of said plurality of light sources, when viewed in the longitudinal direction of said light guide. ### Claim 209 (depends on 208) A light guide according to claim 208, wherein said reflection member includes light-reflecting paint. ### Claim 210 (depends on 208) A light guide according to claim 208, wherein said reflection member includes a coarse surface. ### Claim 211 (depends on 208) A light guide according to claim 208, wherein said reflection member includes a sawtooth-shaped reflecting surface. ### Claim 212 An image reading device comprising: (a) an illumination device provided with a longitudinal light guide that guides light introduced from a plurality of light sources and emits the light along a longitudinal side thereof, having a longitudinal surface that extends in a longitudinal direction of said light guide; an end surface disposed at one longitudinal end of said longitudinal surface; a plurality of light sources disposed on said end surface; and a longitudinal reflection member arranged along said longitudinal surface, wherein a reflection member normal line that passes through a center of a width of said longitudinal reflection member is shifted, at least at a part of said longitudinal reflection member near said end surface, from a center of at least one of said plurality of light sources, when viewed in the longitudinal direction of said light guide; and (b) a photoelectric converting device having a plurality of photoelectric conversion elements that read an image illuminated by said illumination device and output an image signal. ### Claim 213 (depends on 212) A device according to claim 212, wherein said reflection member includes light-reflecting paint. ### Claim 214 (depends on 212) A device according to claim 212, wherein said reflection member includes a coarse surface. ### Claim 215 (depends on 212) A device according to claim 212, wherein said reflection member includes a sawtooth-shaped reflecting surface. ### Claim 216 An information processing apparatus comprising: (a) an illumination device provided with a longitudinal light guide that guides light introduced from a plurality of light sources and emits the light along a longitudinal side thereof, having a longitudinal surface that extends in a longitudinal direction of said light guide; an end surface disposed at one longitudinal end of said longitudinal surface; a plurality of light sources disposed on said end surface; and a longitudinal reflection member arranged along said longitudinal surface, wherein a reflection member normal line that passes through a center of a width of said longitudinal reflection member is shifted, at least at a part of said longitudinal reflection member near said end surface, from a center of at least one of said plurality of light sources, when viewed in the longitudinal direction of said light guide; (b) a photoelectric converting device having a plurality of photoelectric conversion elements that read an image illuminated by said illumination device and output an image signal; and (c) control circuits that control said illumination device and said photoelectric converting device. ### Claim 217 (depends on 216) An apparatus according to claim 216, wherein said reflection member includes light-reflecting paint. ### Claim 218 (depends on 216) An apparatus according to claim 216, wherein said reflection member includes a coarse surface. ### Claim 219 (depends on 216) An apparatus according to claim 216, wherein said reflection member includes a sawtooth-shaped reflecting surface. ### Claim 220 (depends on 216) An apparatus according to claim 216, wherein said plurality of light sources includes a light-emitting diode. ### Claim 221 (depends on 216) An apparatus according to claim 216, further comprising communication means controlled by said control circuits. ### Claim 222 (depends on 216) An apparatus according to claim 216, further comprising a processor for converting the image signal output by said photoelectric converting device into a different electrical signal. ### Claim 223 (depends on 222) An apparatus according to claim 222, wherein the different electrical signal is adapted for recording. ### Claim 224 (depends on 216) An apparatus according to claim 216, further comprising drive means for shifting a positional relationship between the image illuminated by said illumination device and said photoelectric converting device. ### Claim 225 (depends on 216) An apparatus according to claim 216, further comprising a communication unit, wherein said control circuits controls said communication unit. ### Claim 226 (depends on 216) An apparatus according to claim 216, further comprising a drive unit that shifts a positional relationship between the image illuminated by said illumination device and said photoelectric converting device. ### Claim 227 An information transmitting apparatus comprising: (a) an illumination device provided with a longitudinal light guide that guides light introduced from a plurality of light sources and emits the light along a longitudinal side thereof, having a longitudinal surface that extends in a longitudinal direction of said light guide; an end surface disposed at one longitudinal end of said longitudinal surface; a plurality of light sources disposed on said end surface; and a longitudinal reflection member arranged along said longitudinal surface, wherein a reflection member normal line that passes through a center of a width of said longitudinal reflection member is shifted, at least at a part of said longitudinal reflection member near said end surface, from a center of at least one of said plurality of light sources, when viewed in the longitudinal direction of said light guide; (b) a photoelectric converting device having a plurality of photoelectric conversion elements that read an image illuminated by said illumination device and form an image signal; and (c) transmission means for transmitting the image signal to an external processing apparatus for processing the image signal. ### Claim 228 (depends on 227) An apparatus according to claim 227, wherein said reflection member includes light-reflecting paint. ### Claim 229 (depends on 227) An apparatus according to claim 227, wherein said reflection member includes a coarse surface. ### Claim 230 (depends on 227) An apparatus according to claim 227, wherein said reflection member includes a sawtooth-shaped reflecting surface. ### Claim 231 (depends on 227) An apparatus according to claim 227, wherein said plurality of light sources includes a light-emitting diode. ### Claim 232 (depends on 227) An apparatus according to claim 227, further comprising a processor for converting the image signal formed by said photoelectric converting device into a different electrical signal. ### Claim 233 (depends on 232) An apparatus according to claim 232, wherein the different electrical signal is adapted for recording. ### Claim 234 (depends on 227) An apparatus according to claim 227, further comprising drive means for shifting a positional relationship between the image illuminated by said illumination device and said photoelectric converting device. ### Claim 235 An information reading apparatus comprising: (a) an illumination device provided with a longitudinal light guide that guides light introduced from a plurality of light sources and emits the light along a longitudinal side thereof, having a longitudinal surface that extends in a longitudinal direction of said light guide; an end surface disposed at one longitudinal end of said longitudinal surface; a plurality of light sources disposed on said end surface; and a longitudinal reflection member arranged along said longitudinal surface, wherein a reflection member normal line that passes through a center of a width of said longitudinal reflection member is shifted, at least at a part of said longitudinal reflection member near said end surface, from a center of at least one of said plurality of light sources, when viewed in the longitudinal direction of said light guide; (b) a photoelectric converting device having a plurality of photoelectric conversion elements that read an image illuminated by said illumination device and form an image signal; and (c) drive means for shifting a positional relationship between the image illuminated by said illumination device and said photoelectric converting device. ### Claim 236 (depends on 235) An apparatus according to claim 235, wherein said reflection member includes light-reflecting paint. ### Claim 237 (depends on 235) An apparatus according to claim 235, wherein said reflection member includes a coarse surface. ### Claim 238 (depends on 235) An apparatus according to claim 235, wherein said reflection member includes a sawtooth-shaped reflecting surface. ### Claim 239 (depends on 235) An apparatus according to claim 235, wherein said plurality of light sources includes a light-emitting diode. ### Claim 240 (depends on 235) An apparatus according to claim 235, further comprising a processor that converts the image signal formed by said photoelectric converting device into a different electrical signal. ### Claim 241 (depends on 240) An apparatus according to claim 240, wherein the different electrical signal is adapted for recording. ### Claim 242 (depends on 235) An apparatus according to claim 235, wherein said drive means includes a motor. ### Claim 243 (depends on 242) An apparatus according to claim 242, wherein said motor moves an image bearing sheet. ### Claim 244 (depends on 235) An apparatus according to claim 235, further comprising transmission means for transmitting the image signal to an external processing apparatus for processing the image signal. ### Claim 245 An illumination device comprising: a longitudinal surface that extends in a longitudinal direction of a light guide; an end surface disposed at one longitudinal end of said longitudinal surface; a plurality of light sources disposed on the end surface; and a longitudinal reflection member arranged along the longitudinal surface, a reflection member normal line that passes through a center of a width of said longitudinal reflection member being shifted, at least at a part of said longitudinal reflection member near the end surface, from a center of at least one of said plurality of light sources when viewed from a longitudinal direction of said light guide. ### Claim 246 (depends on 245) A device according to claim 245, wherein said reflection member includes light-reflecting paint. ### Claim 247 (depends on 245) A device according to claim 245, wherein said reflection member includes a coarse surface. ### Claim 248 (depends on 245) A device according to claim 245, wherein said reflection member includes a sawtooth-shaped reflecting surface. ### Claim 249 An elongated light guide for use with a plurality of light sources to illuminate an original with a light beam having a line-shape cross-section extending along a main scanning direction of a photoelectric conversion element array of a reading apparatus, said light guide being elongated in the main scanning direction and comprising: a longitudinal end surface that receives light from the plurality of light sources; a light emitting surface; and a reflection part formed on a surface different from said light emitting surface and elongated in the main scanning direction, said reflection part being arranged so that, when said longitudinal end surface is positioned to receive light from the plurality of light sources, in at least a region near the plurality of light sources a normal line passing through a center of a width of said reflection part deviates from at least one of the plurality of light sources, when viewed from said longitudinal end surface, and light introduced from the plurality of light sources is guided through said light guide in the main scanning direction, dispersed and/or reflected by said reflection part, and guided out of said light emitting surface so as to illuminate the original with a light beam having a line-shape cross-section extending along the main scanning direction of the photoelectric conversion element array. ### Claim 250 (depends on 249) A light guide according to claim 249, wherein said reflection part includes light-reflecting paint. ### Claim 251 (depends on 249) A light guide according to claim 249, wherein said reflection part includes a coarse surface. ### Claim 252 (depends on 249) A light guide according to claim 249, wherein said reflection part includes a sawtooth-shaped reflecting surface. ### Claim 253 An illumination device for use with a reading apparatus, to illuminate an original with a light beam having a line-shape cross-section extending along a main scanning direction of a line sensor of the reading apparatus, said illumination device comprising: a plurality of light sources; and an elongated light guide elongated in the main scanning direction, said elongated light guide comprising: a longitudinal end surface that receives light from said plurality of light sources; a light emitting surface; and a reflection part formed on a surface different from said light emitting surface and elongated in the main scanning direction, said reflection part being arranged so that, when said longitudinal end surface is positioned to receive light from said plurality of light sources, in at least a region near said plurality of light sources a normal line passing through a center of a width of said reflection part deviates from at least one of said plurality of light sources, when viewed from said longitudinal end surface, and light introduced from said plurality of light sources is guided through said light guide in the main scanning direction, dispersed and/or reflected by said reflection part, and guided out of said light emitting surface so as to illuminate the original with a light beam having a line-shape cross-section extending along the main scanning direction of the line sensor. ### Claim 254 (depends on 253) An illumination device according to claim 253, wherein said reflection part includes light-reflecting paint. ### Claim 255 (depends on 253) An illumination device according to claim 253, wherein said reflection part includes a coarse surface. ### Claim 256 (depends on 253) An illumination device according to claim 253, wherein said reflection part includes a sawtooth-shaped reflecting surface. ### Claim 257 An image reading apparatus comprising: a line sensor, having a main scanning direction, that receives a light image of an original and outputs an image signal; and an illumination device that illuminates an original with a light beam having a line-shape cross-section extending along the main scanning direction of said line sensor, said illumination device comprising: a plurality of light sources; and an elongated light guide elongated in the main scanning direction, said elongated light guide comprising: a longitudinal end surface that receives light from said plurality of light sources; a light emitting surface; and a reflection part formed on a surface different from said light emitting surface and elongated in the main scanning direction, said reflection part being arranged so that, when said longitudinal end surface is positioned to receive light from said plurality of light sources, in at least a region near said plurality of light sources a normal line passing through a center of a width of said reflection part deviates from at least one of said plurality of light sources, when viewed from said longitudinal end surface, and light introduced from said plurality of light sources is guided through said light guide in the main scanning direction, dispersed and/or reflected by said reflection part, and guided out of said light emitting surface so as to illuminate the original with a light beam having a line-shape cross-section extending along the main scanning direction of said line sensor. ### Claim 258 (depends on 257) An image reading apparatus according to claim 257, wherein said reflection part includes light-reflecting paint. ### Claim 259 (depends on 257) An image reading apparatus according to claim 257, wherein said reflection part includes a coarse surface. ### Claim 260 (depends on 257) An image reading apparatus according to claim 257, wherein said reflection member includes a sawtooth-shaped reflecting surface. ### Claim 261 An image processing system comprising: a line sensor, having a main scanning direction, that receives a light image of an original and outputs an image signal; an illumination device that illuminates an original with a light beam having a line-shape cross-section extending along the main scanning direction of said line sensor, said illumination device comprising: a plurality of light sources; and an elongated light guide elongated in the main scanning direction, said elongated light guide comprising: a longitudinal end surface that receives light from said plurality of light sources; a light emitting surface; and a reflection part formed on a surface different from said light emitting surface and elongated in the main scanning direction, said reflection part being arranged so that, when said longitudinal end surface is positioned to receive light from said plurality of light sources, in at least a region near said plurality of light sources a normal line passing through a center of a width of said reflection part deviates from at least one of said plurality of light sources, when viewed from said longitudinal end surface, and light introduced from said plurality of light sources is guided through said light guide in the main scanning direction, dispersed and/or reflected by said reflection part, and guided out of said light emitting surface so as to illuminate the original with a light beam having a line-shape cross-section extending along the main scanning direction of said line sensor; and a control circuit that controls said line sensor and said illumination device. ### Claim 262 (depends on 261) An image processing system according to claim 261, wherein said reflection part includes light-reflecting paint. ### Claim 263 (depends on 261) An image processing system according to claim 261, wherein said reflection part includes a coarse surface. ### Claim 264 (depends on 261) An image processing system according to claim 261, wherein said reflection member includes a sawtooth-shaped reflecting surface. ### Claim 265 (depends on 261) An image processing system according to claim 261, wherein said plurality of light sources includes a light-emitting diode. ### Claim 266 (depends on 261) An image processing system according to claim 261, further comprising: communication means for communicating with exterior apparatus, wherein said communication means is controlled by said control circuit. ### Claim 267 (depends on 261) An image processing system according to claim 261, further comprising a processor that converts an image signal output by said line sensor into a different electrical signal. ### Claim 268 (depends on 267) An image processing system according to claim 267, wherein the different electrical signal is adapted for recording. ### Claim 269 (depends on 261) An image processing system according to claim 261, further comprising: drive means for shifting a positional relationship between an original illuminated by said illumination device and said line sensor. ### Claim 270 (depends on 261) An image processing system according to claim 261, further comprising: a communication unit that communicates with an exterior apparatus, wherein said control circuit controls said communication unit. ### Claim 271 (depends on 261) An image processing system according to claim 261, further comprising: a drive unit that shifts a positional relationship between an original illuminated by said illumination device and said line sensor. ### Claim 272 An information communication apparatus comprising: a line sensor, having a main scanning direction, that receives a light image of an original and outputs an image signal; an illumination device that illuminates an original with a light beam having a line-shape cross-section extending along the main scanning direction of said line sensor, said illumination device comprising: a plurality of light sources; and an elongated light guide elongated in the main scanning direction, said elongated light guide comprising: a longitudinal end surface that receives light from said plurality of light sources; a light emitting surface; and a reflection part formed on a surface different from said light emitting surface and elongated in the main scanning direction, said reflection part being arranged so that, when said longitudinal end surface is positioned to receive light from said plurality of light sources, in at least a region near said plurality of light sources a normal line passing through a center of a width of said reflection part deviates from at least one of said plurality of light sources, when viewed from said longitudinal end surface, and light introduced from said plurality of light sources is guided through said light guide in the main scanning direction, dispersed and/or reflected by said reflection part, and guided out of said light emitting surface so as to illuminate the original with a light beam having a line-shape cross-section extending along the main scanning direction of said line sensor; and communication means for communicating the image signal to an external processing apparatus for processing the image signal. ### Claim 273 (depends on 272) An information communication apparatus according to claim 272, wherein said reflection part includes light-reflecting paint. ### Claim 274 (depends on 272) An information communication apparatus according to claim 272, wherein said reflection part includes a coarse surface. ### Claim 275 (depends on 272) An information communication apparatus according to claim 272, wherein said reflection part includes a sawtooth-shaped reflecting surface. ### Claim 276 (depends on 272) An information communication apparatus according to claim 272, wherein said plurality of light sources includes a light-emitting diode. ### Claim 277 (depends on 272) An information communication apparatus according to claim 272, further comprising: a processor that converts an image signal formed by said line sensor into a different electrical signal. ### Claim 278 (depends on 277) An information communication apparatus according to claim 277, wherein the different electrical signal is adapted for recording. ### Claim 279 (depends on 272) An information communication apparatus according to claim 272, further comprising: drive means for shifting a positional relationship between an original illuminated by said illumination device and said line sensor. ### Claim 280 An information reading apparatus comprising: a line sensor, having a main scanning direction, that receives a light image of an original and outputs an image signal; an illumination device that illuminates an original with a light beam having a line-shape cross-section extending along the main scanning direction of said line sensor, said illumination device comprising: a plurality of light sources; and an elongated light guide elongated in the main scanning direction, said elongated light guide comprising: a longitudinal end surface that receives light from said plurality of light sources; a light emitting surface; and a reflection part formed on a surface different from said light emitting surface and elongated in the main scanning direction, said reflection part being arranged so that, when said longitudinal end surface is positioned to receive light from said plurality of light sources, in at least a region near said plurality of light sources a normal line passing through a center of a width of said reflection part deviates from at least one of said plurality of light sources, when viewed from said longitudinal end surface, and light introduced from said plurality of light sources is guided through said light guide in the main scanning direction, dispersed and/or reflected by said reflection part, and guided out of said light emitting surface so as to illuminate the original with a light beam having a line-shape cross-section extending along the main scanning direction of said line sensor; and driving means for shifting a positional relationship between an original illuminated by said illumination device and said line sensor. ### Claim 281 (depends on 280) An information reading apparatus according to claim 280, wherein said reflection part includes light-reflecting paint. ### Claim 282 (depends on 280) An information reading apparatus according to claim 280, wherein said reflection part includes a coarse surface. ### Claim 283 (depends on 280) An information reading apparatus according to claim 280, wherein said reflection part includes a sawtooth-shaped reflecting surface. ### Claim 284 (depends on 280) An information reading apparatus according to claim 280, wherein said plurality of light sources includes a light-emitting diode. ### Claim 285 (depends on 280) An information reading apparatus according to claim 280, further comprising: a processor that converts an image signal formed by said line sensor into a different electrical signal. ### Claim 286 (depends on 285) An information reading apparatus according to claim 285, wherein the different electrical signal is adapted for recording. ### Claim 287 (depends on 280) An information reading apparatus according to claim 280, wherein said drive means includes a motor. ### Claim 288 (depends on 287) An information reading apparatus according to claim 287, wherein said motor moves an image bearing sheet. ### Claim 289 (depends on 280) An information reading apparatus according to claim 280, further comprising: transmitting means for transmitting an image signal to an external processing apparatus. ### Claim 290 An information processing apparatus comprising: a line sensor, having a main scanning direction, that receives a light image of an original and outputs an image signal; an illumination device that illuminates an original with a light beam having a line-shape cross-section extending along the main scanning direction of said line sensor, said illumination device comprising: a plurality of light sources; and an elongated light guide elongated in the main scanning direction, said elongated light guide comprising: a longitudinal end surface that receives light from said plurality of light sources; a light emitting surface; and a reflection part formed on a surface different from said light emitting surface and elongated in the main scanning direction, said reflection part being arranged so that, when said longitudinal end surface is positioned to receive light from said plurality of light sources, in at least a region near said plurality of light sources a normal line passing through a center of a width of said reflection part deviates from at least one of said plurality of light sources, when viewed from said longitudinal end surface, and light introduced from said plurality of light sources is guided through said light guide in the main scanning direction, dispersed and/or reflected by said reflection part, and guided out of said light emitting surface so as to illuminate the original with a light beam having a line-shape cross-section extending along the main scanning direction of said line sensor; and a processor that processes the image signal output from said line sensor; and a control circuit that controls said illumination device, said line sensor and said processor. ### Claim 291 (depends on 290) An information reading apparatus according to claim 290, wherein said reflection part includes light-reflecting paint. ### Claim 292 (depends on 290) An information reading apparatus according to claim 290, wherein said reflection part includes a coarse surface. ### Claim 293 (depends on 290) An information reading apparatus according to claim 290, wherein said reflection part includes a sawtooth-shaped reflecting surface. ### Claim 294 (depends on 290) An information reading apparatus according to claim 290, wherein said plurality of light sources includes a light-emitting diode. ### Claim 295 (depends on 290) An information reading apparatus according to claim 290, further comprising: communication means for communicating with external apparatus, wherein said communication means is controlled by said control circuit. ### Claim 296 (depends on 290) An information reading apparatus according to claim 290, wherein said processor converts the image signal into a different electrical signal. ### Claim 297 (depends on 296) An information reading apparatus according to claim 296, wherein the different electrical signal is adapted for recording. ### Claim 298 (depends on 290) An information reading apparatus according to claim 290, further comprising: drive means for shifting a positional relationship between an original illuminated by said illumination device and said line sensor. ### Claim 299 (depends on 290) An information reading apparatus according to claim 290, further comprising: a communication unit that communicates with an external apparatus, wherein said control circuit controls said communication unit. ### Claim 300 (depends on 290) An information reading apparatus according to claim 290, further comprising: a drive unit that shifts a positional relationship between an original illuminated by said illumination device and said line sensor. ### Claim 301 An image processing system comprising: an illuminating apparatus including therein a longitudinal light guide that guides light from a light source along a longitudinal direction of said light guide to radiate the light; a photoelectric converting device that reads an image illuminated by said illuminating apparatus and outputs an image signal; and a controller that controls said illuminating apparatus and said photoelectric converting device, wherein said light guide includes a longitudinal reflection member, arranged along the longitudinal direction of said light guide, that reflects light from said light source, and at least in a neighborhood of said light source, a thickness of said light guide in a direction parallel to a normal line of said reflection member is different at the position of said reflection member than at the position of said light source, when viewed in the longitudinal direction of said light guide. ### Claim 302 (depends on 301) A system according to claim 301, wherein said reflection member includes a light-reflecting paint. ### Claim 303 (depends on 301) A system according to claim 301, wherein said reflection member includes a rough surface. ### Claim 304 (depends on 302) A system according to claim 302, wherein said reflection member includes a sawtooth-shaped surface. ### Claim 305 (depends on 302) A system according to claim 302, wherein said reflection member is arranged at a convex portion of said light guide. ### Claim 306 (depends on 302) A system according to claim 302, further comprising a light gathering unit that is configured to gather the light to be radiated. ### Claim 307 An image processing system comprising: an illuminating apparatus including therein a longitudinal light guide that guides light from a light source along a longitudinal direction of said light guide to radiate the light; a photoelectric converting device that reads an image illuminated by said illuminating apparatus and outputs an image signal; and a processing unit that processes said image signal in a predetermined manner, wherein said light guide includes a longitudinal reflection member, arranged along the longitudinal direction of said light guide, that reflects light from said light source, and at least in a neighborhood of said light source, a thickness of said light guide in a direction parallel to a normal line of said reflection member is different at the position of said reflection member than at the position of said light source, when viewed in the longitudinal direction of said light guide. ### Claim 308 (depends on 307) A system according to claim 307, further comprising a controller that controls said illuminating apparatus, said photoelectric converting device and said processing unit. ### Claim 309 (depends on 308) A system according to claim 308, wherein said reflection member includes a light-reflecting paint. ### Claim 310 (depends on 308) A system according to claim 308, wherein said reflection member includes a rough surface. ### Claim 311 (depends on 308) A system according to claim 308, wherein said reflection member includes a sawtooth-shaped surface. ### Claim 312 (depends on 308) A system according to claim 308, wherein said reflection member is arranged at a convex portion of said light guide. ### Claim 313 (depends on 308) A system according to claim 308, further comprising a light gathering unit that gathers the light to be radiated. ### Claim 314 (depends on 307) A system according to claim 307, wherein said reflection member includes a light-reflecting paint. ### Claim 315 (depends on 307) A system according to claim 307, wherein said reflection member includes a rough surface. ### Claim 316 (depends on 307) A system according to claim 307, wherein said reflection member includes a sawtooth-shaped surface. ### Claim 317 (depends on 307) A system according to claim 307, wherein said reflection member is arranged at a convex portion of said light guide. ### Claim 318 (depends on 307) A system according to claim 307, further comprising a light gathering unit that gathers the light to be radiated. ### Claim 319 An image processing system comprising: an illuminating apparatus including therein a longitudinal light guide that guides light from a light source along a longitudinal direction of said light guide to radiate the light; a photoelectric converting device that reads an image illuminated by said illuminating apparatus and outputs an image signal; a moving unit that relatively moves the image and said photoelectric converting device; and a controller that controls said illuminating apparatus, said photoelectric converting device and said moving unit, wherein said light guide includes a longitudinal reflection member, arranged along the longitudinal direction of said light guide, that reflects light from said light source, and at least in a neighborhood of said light source, a thickness of said light guide in a direction parallel to a normal line of said reflection member is different at the position of said reflection member than at the position of said light source, when viewed in the longitudinal direction of said light guide. ### Claim 320 (depends on 319) An apparatus according to claim 319, further comprising a transmitter that transmits the image signal to an external recording medium. ### Claim 321 (depends on 320) A system according to claim 320, wherein said reflection member includes a light-reflecting paint. ### Claim 322 (depends on 320) A system according to claim 320, wherein said reflection member includes a rough surface. ### Claim 323 (depends on 320) A system according to claim 320, wherein said reflection member includes a sawtooth-shaped surface. ### Claim 324 (depends on 320) A system according to claim 320, wherein said reflection member is arranged at a convex portion of said light guide. ### Claim 325 (depends on 319) A system according to claim 319, wherein said reflection member includes a light-reflecting paint. ### Claim 326 (depends on 319) A system according to claim 319, wherein said reflection member includes a rough surface. ### Claim 327 (depends on 319) A system according to claim 319, wherein said reflection member includes a sawtooth-shaped surface. ### Claim 328 (depends on 319) A system according to claim 319, wherein said reflection member is arranged at a convex portion of said light guide. ### Claim 329 (depends on 319) A system according to claim 319, further comprising a light gathering unit that gathers the light to be radiated. ### Claim 330 (depends on 319) A system according to claim 319, further comprising a light gathering unit that gathers the light to be radiated. ### Claim 331 An image processing system comprising: an illuminating apparatus including therein a longitudinal light guide that guides light from a light source along a longitudinal direction of said light guide to radiate the light: a photoelectric converting device that reads an image illuminated by said illuminating apparatus and outputs an image signal; a transmitter that transmits the image signal to an external recording medium; and a controller, connected to said transmitter, that controls said illuminating apparatus and said photoelectric converting device, wherein said light guide includes a longitudinal reflection member, arranged along the longitudinal direction of said light guide, that reflects light from said light source, and at least in a neighborhood of said light source, a thickness of said light guide in a direction parallel to a normal line of said reflection member is different at the position of said reflection member than at the position of said light source, when viewed in the longitudinal direction of said light guide. ### Claim 332 (depends on 331) A system according to claim 331, wherein said reflection member includes a light-reflecting paint. ### Claim 333 (depends on 331) A system according to claim 331, wherein said reflection member includes a rough surface. ### Claim 334 (depends on 331) A system according to claim 331, wherein said reflection member includes a sawtooth-shaped surface. ### Claim 335 (depends on 331) A system according to claim 331, wherein said reflection member is arranged at a convex portion of said light guide. ### Claim 336 (depends on 331) A system according to claim 331, further comprising a light gathering unit that gathers the light to be radiated. ### Claim 337 An image processing system comprising: an illuminating apparatus including therein a longitudinal light guide that guides light from a plurality of light sources along a longitudinal direction of said light guide to radiate the light; a photoelectric converting device that reads an image illuminated by said illuminating apparatus and outputs an image signal; and a controller that controls said illuminating apparatus and said photoelectric converting device, wherein said light guide includes a reflection member, arranged along the longitudinal direction of said light guide, that reflects light from said plurality of light sources, and wherein at least in a neighborhood of said plurality of light sources, a thickness of said light guide in a direction parallel to a normal line of said reflection member is different at the position of said reflection member than at the position of at least one of said plurality of light sources, when viewed in the longitudinal direction of said light guide. ### Claim 338 (depends on 337) A system according to claim 337, wherein said reflection member includes light-reflecting paint. ### Claim 339 (depends on 337) A system according to claim 337, wherein said reflection member includes a rough surface. ### Claim 340 (depends on 337) A system according to claim 337, wherein said reflection member includes a sawtooth-shaped surface. ### Claim 341 (depends on 337) A system according to claim 337, wherein said reflection member is arranged at a convex portion of said light guide. ### Claim 342 (depends on 337) A system according to claim 337, further comprising a light gathering unit that gathers the light to be radiated. ### Claim 343 An image processing system comprising: an illuminating apparatus including therein a longitudinal light guide that guides light from a plurality of light sources along a longitudinal direction of said light guide to radiate the light; a photoelectric converting device that reads an image illuminated by said illuminating apparatus and outputs an image signal; and a processing unit that processes said image signal in a predetermined manner, wherein said light guide includes a reflection member, arranged along the longitudinal direction of said light guide, that reflects light from said plurality of light sources, and wherein at least in a neighborhood of said plurality of light sources, a thickness of said light guide in a direction parallel to a normal line of said reflection member is different at the position of said reflection member than at the position of at least one of said plurality of light sources, when viewed in the longitudinal direction of said light guide. ### Claim 344 (depends on 343) A system according to claim 343, further comprising a controller that controls said illuminating apparatus, said photoelectric converting device and said processing unit. ### Claim 345 (depends on 344) A system according to claim 344, wherein said reflection member includes a light-reflecting paint. ### Claim 346 (depends on 344) A system according to claim 344, wherein said reflection member includes a rough surface. ### Claim 347 (depends on 344) A system according to claim 344, wherein said reflection member includes a sawtooth-shaped surface. ### Claim 348 (depends on 344) A system according to claim 344, wherein said reflection member is arranged at a convex portion of said light guide. ### Claim 349 (depends on 344) A system according to claim 344, further comprising a light gathering unit that gathers the light to be radiated. ### Claim 350 (depends on 343) A system according to claim 343, wherein said reflection member includes light-reflecting paint. ### Claim 351 (depends on 343) A system according to claim 343, wherein said reflection member includes a rough surface. ### Claim 352 (depends on 343) A system according to claim 343, wherein said reflection member includes a sawtooth-shaped surface. ### Claim 353 (depends on 343) A system according to claim 343, wherein said reflection member is arranged at a convex portion of said light guide. ### Claim 354 (depends on 343) A system according to claim 343, further comprising a light gathering unit that gathers the light to be radiated. ### Claim 355 An image processing system comprising: an illuminating apparatus including therein a longitudinal light guide that guides light from a plurality of light sources along a longitudinal direction of said light guide to radiate the light; a photoelectric converting device that reads an image illuminated by said illuminating apparatus and outputs an image signal; a moving unit that relatively moves the image and said photoelectric converting device; and a controller that controls said illuminating apparatus, said photoelectric converting device and said moving unit, wherein said light guide includes a reflection member, arranged along the longitudinal direction of said light guide, that reflects light from said plurality of light sources, and wherein at least in a neighborhood of said plurality of light sources, a thickness of said light guide in a direction parallel to a normal line of said reflection member is different at the position of said reflection member than at the position of at least one of said plurality of light sources, when viewed in the longitudinal direction of said light guide. ### Claim 356 (depends on 355) A system according to claim 355, further comprising a transmitter that transmits the image signal to an external recording medium. ### Claim 357 (depends on 356) A system according to claim 356, wherein said reflection member includes a light-reflecting paint. ### Claim 358 (depends on 356) A system according to claim 356, wherein said reflection member includes a rough surface. ### Claim 359 (depends on 356) A system according to claim 356, wherein said reflection member includes a sawtooth-shaped surface. ### Claim 360 (depends on 356) A system according to claim 356, wherein said reflection member is arranged at a convex portion of said light guide. ### Claim 361 (depends on 356) A system according to claim 356, further comprising a light gathering unit that gathers the light to be radiated. ### Claim 362 (depends on 355) A system according to claim 355, wherein said reflection member includes a light-reflecting paint. ### Claim 363 (depends on 355) A system according to claim 355, wherein said reflection member includes a rough surface. ### Claim 364 (depends on 355) A system according to claim 355, wherein said reflection member includes a sawtooth-shaped surface. ### Claim 365 (depends on 355) A system according to claim 355, wherein said reflection member is arranged at a convex portion of said light guide. ### Claim 366 (depends on 355) A system according to claim 355, further comprising a light gathering unit that gathers the light to be radiated. ### Claim 367 An image processing system comprising: an illuminating apparatus including therein a longitudinal light guide that guides light from a plurality of light sources along a longitudinal direction of said light guide to radiate the light; a photoelectric converting device that reads an image illuminated by said illuminating apparatus and outputs an image signal; a transmitter that transmits the image signal to an external recording medium; and a controller, connected to said transmitter, that controls said illuminating apparatus and said photoelectric converting device, wherein said light guide includes a reflection member, arranged along the longitudinal direction of said light guide, that reflects light from said plurality of light sources, and wherein at least in a neighborhood of said plurality of light sources, a thickness of said light guide in a direction parallel to a normal line of said reflection member is different at the position of said reflection member than at the position of at least one of said plurality of light sources, when viewed in the longitudinal direction of said light guide. ### Claim 368 (depends on 367) A system according to claim 367, wherein said reflection member includes a light-reflecting paint. ### Claim 369 (depends on 367) A system according to claim 367, wherein said reflection member includes a rough surface. ### Claim 370 (depends on 367) A system according to claim 367, wherein said reflection member includes a sawtooth-shaped surface. ### Claim 371 (depends on 367) A system according to claim 367, wherein said reflection member is arranged at a convex portion of said light guide. ### Claim 372 (depends on 367) A system according to claim 367, further comprising a light gathering unit that gathers the light to be radiated. ### Claim 373 An information transmitting apparatus comprising: an illumination device provided with a longitudinal light guide that guides light introduced from a light source and emits the light along a longitudinal side thereof, having a longitudinal reflection member, arranged along said light guide, that reflects light from said light source, wherein, at least at a part of said reflection member near said light source, a normal line passing through a center of a width of said reflection member is shifted from a center of said light source, when viewed in a longitudinal direction of said light guide; a photoelectric converting device having a plurality of photoelectric conversion elements that read an image illuminated by said illumination device and form an image signal; and a transmitter that transmits the image signal to an external processing apparatus for processing the image signal. ### Claim 374 (depends on 373) An apparatus according to claim 373, wherein said reflection member includes light-reflecting paint. ### Claim 375 (depends on 373) An apparatus according to claim 373, wherein said reflection member includes a coarse surface. ### Claim 376 (depends on 373) An apparatus according to claim 373, wherein said reflection member includes a sawtooth-shaped reflecting surface. ### Claim 377 (depends on 373) An apparatus according to claim 373, wherein said light source includes a light-emitting diode. ### Claim 378 (depends on 373) An apparatus according to claim 373, further comprising a processor that converts the image signal formed by said photoelectric converting device into a different electrical signal. ### Claim 379 (depends on 378) An apparatus according to claim 378, wherein the different electrical signal is adapted for recording. ### Claim 380 (depends on 373) An apparatus according to claim 373, further comprising a drive unit that shifts a positional relationship between the image illuminated by said illumination device and said photoelectric converting device. ### Claim 381 An information reading apparatus comprising: an illumination device provided with a longitudinal light guide that guides light introduced from a light source and emits the light along a longitudinal side thereof, having a longitudinal reflection member, arranged along said light guide, that reflects the light from said light source, wherein, at least at a part of said reflection member near said light source, a normal line passing through a center of a width of said reflection member is shifted from a center of said light source, when viewed in a longitudinal direction of said light guide; a photoelectric converting device having a plurality of photoelectric conversion elements that read an image illuminated by said illumination device and form an image signal; and a drive unit that shifts a positional relationship between the image illuminated by said illumination device and said photoelectric converting device. ### Claim 382 (depends on 381) An apparatus according to claim 381, wherein said reflection member includes light-reflecting paint. ### Claim 383 (depends on 381) An apparatus according to claim 381, wherein said reflection member includes a coarse surface. ### Claim 384 (depends on 381) An apparatus according to claim 381, wherein said reflection member includes a sawtooth-shaped reflecting surface. ### Claim 385 (depends on 381) An apparatus according to claim 381, wherein said light source includes a light-emitting diode. ### Claim 386 (depends on 381) An apparatus according to claim 381, further comprising a processor that converts the image signal formed by said photoelectric converting device into a different electrical signal. ### Claim 387 (depends on 386) An apparatus according to claim 386, wherein the different electrical signal is adapted for recording. ### Claim 388 (depends on 381) An apparatus according to claim 381, wherein said drive unit includes a motor. ### Claim 389 (depends on 388) An apparatus according to claim 388, wherein said motor moves an image bearing sheet. ### Claim 390 (depends on 381) An apparatus according to claim 381, further comprising a transmitter that transmits the image signal to an external processing apparatus for processing the image signal. ### Claim 391 An information transmitting apparatus comprising: an illumination device provided with a longitudinal light guide that guides light introduced from a plurality of light sources and emits the light along a longitudinal side thereof, having a longitudinal reflection member, arranged along said light guide, that reflects the light from said plurality of light sources, wherein, at least at a part of said reflection member near said plurality of light sources, a normal line passing through a center of a width of said reflection member is shifted from a center of at least one of said plurality of light sources, when viewed in a longitudinal direction of said light guide; a photoelectric converting device having a plurality of photoelectric conversion elements that read an image illuminated by said illumination device and form an image signal; and transmitter that transmits the image signal to an external processing apparatus for processing the image signal. ### Claim 392 (depends on 391) An apparatus according to claim 391, wherein said reflection member includes light-reflecting paint. ### Claim 393 (depends on 391) An apparatus according to claim 391, wherein said reflection member includes a coarse surface. ### Claim 394 (depends on 391) An apparatus according to claim 391, wherein said reflection member includes a sawtooth-shaped reflecting surface. ### Claim 395 (depends on 391) An apparatus according to claim 391, wherein said plurality of light sources includes a light-emitting diode. ### Claim 396 (depends on 391) An apparatus according to claim 391, further comprising a processor that converts the image signal formed by said photoelectric converting device into a different electrical signal. ### Claim 397 (depends on 396) An apparatus according to claim 396, wherein the different electrical signal is adapted for recording. ### Claim 398 (depends on 391) An apparatus according to claim 391, further comprising a drive unit that shifts a positional relationship between the image illuminated by said illumination device and said photoelectric converting device. ### Claim 399 An information reading apparatus comprising: an illumination device provided with a longitudinal light guide that guides light introduced from a plurality of light sources and emits the light along a longitudinal side thereof, having a longitudinal reflection member, arranged along said light guide, that reflects the light from said plurality of light sources, wherein, at least at a part of said reflection member near said plurality of light sources, a normal line passing through a center of a width of said reflection member is shifted from a center of at least one of said plurality of light sources, when viewed in a longitudinal direction of said light guide; a photoelectric converting device having a plurality of photoelectric conversion elements that read an image illuminated by said illumination device and form an image signal; and a drive unit that shifts a positional relationship between the image illuminated by said illumination device and said photoelectric converting device. ### Claim 400 (depends on 399) An apparatus according to claim 399, wherein said reflection member includes light-reflecting paint. ### Claim 401 (depends on 399) An apparatus according to claim 399, wherein said reflection member includes a coarse surface. ### Claim 402 (depends on 399) An apparatus according to claim 399, wherein said reflection member includes a sawtooth-shaped reflecting surface. ### Claim 403 (depends on 399) An apparatus according to claim 399, wherein said plurality of light sources includes a light-emitting diode. ### Claim 404 (depends on 399) An apparatus according to claim 399, further comprising a processor that converts the image signal formed by said photoelectric converting device into a different electrical signal. ### Claim 405 (depends on 404) An apparatus according to claim 404, wherein the different electrical signal is adapted for recording. ### Claim 406 (depends on 399) An apparatus according to claim 399, wherein said drive unit includes a motor. ### Claim 407 (depends on 406) An apparatus according to claim 406, wherein said motor moves an image bearing sheet. ### Claim 408 (depends on 399) An apparatus according to claim 399, further comprising a transmitter that transmits the image signal to an external processing apparatus for processing the image signal. ### Claim 409 An information transmitting apparatus comprising: an illumination device provided with a longitudinal light guide that guides light introduced from a plurality of light sources and emits the light along a longitudinal side thereof, having a longitudinal surface that extends in a longitudinal direction of said light guide; an end surface disposed at one longitudinal end of said longitudinal surface; a plurality of light sources disposed on said end surface; and a longitudinal reflection member arranged along said longitudinal surface, wherein a reflection member normal line that passes through a center of a width of said longitudinal reflection member is shifted, at least at a part of said longitudinal reflection member near said end surface, from a center of at least one of said plurality of light sources, when viewed in the longitudinal direction of said light guide; a photoelectric converting device having a plurality of photoelectric conversion elements that read an image illuminated by said illumination device and form an image signal; and a transmitter that transmits the image signal to an external processing apparatus for processing the image signal. ### Claim 410 (depends on 409) An apparatus according to claim 409, wherein said reflection member includes light-reflecting paint. ### Claim 411 (depends on 409) An apparatus according to claim 409, wherein said reflection member includes a coarse surface. ### Claim 412 (depends on 409) An apparatus according to claim 409, wherein said reflection member includes a sawtooth-shaped reflecting surface. ### Claim 413 (depends on 409) An apparatus according to claim 409, wherein said plurality of light sources includes a light-emitting diode. ### Claim 414 (depends on 409) An apparatus according to claim 409, further comprising a processor that converts the image signal formed by said photoelectric converting device into a different electrical signal. ### Claim 415 (depends on 414) An apparatus according to claim 414, wherein the different electrical signal is adapted for recording. ### Claim 416 (depends on 409) An apparatus according to claim 409, further comprising a drive unit that shifts a positional relationship between the image illuminated by said illumination device and said photoelectric converting device. ### Claim 417 An information reading apparatus comprising: an illumination device provided with a longitudinal light guide that guides light introduced from a plurality of light sources and emits the light along a longitudinal side thereof, having a longitudinal surface that extends in a longitudinal direction of said light guide; an end surface disposed at one longitudinal end of said longitudinal surface; a plurality of light sources disposed on said end surface; and a longitudinal reflection member arranged along said longitudinal surface, wherein a reflection member normal line that passes through a center of a width of said longitudinal reflection member is shifted, at least at a part of said longitudinal reflection member near said end surface, from a center of at least one of said plurality of light sources, when viewed in the longitudinal direction of said light guide; a photoelectric converting device having a plurality of photoelectric conversion elements that read an image illuminated by said illumination device and form an image signal; and a drive unit that shifts a positional relationship between the image illuminated by said illumination device and said photoelectric converting device. ### Claim 418 (depends on 417) An apparatus according to claim 417, wherein said reflection member includes light-reflecting paint. ### Claim 419 (depends on 417) An apparatus according to claim 417, wherein said reflection member includes a coarse surface. ### Claim 420 (depends on 417) An apparatus according to claim 417, wherein said reflection member includes a sawtooth-shaped reflecting surface. ### Claim 421 (depends on 417) An apparatus according to claim 417, wherein said plurality of light sources includes a light-emitting diode. ### Claim 422 (depends on 417) An apparatus according to claim 417, further comprising a processor that converts the image signal formed by said photoelectric converting device into a different electrical signal. ### Claim 423 (depends on 422) An apparatus according to claim 422, wherein the different electrical signal is adapted for recording. ### Claim 424 (depends on 417) An apparatus according to claim 417, wherein said drive unit includes a motor. ### Claim 425 (depends on 424) An apparatus according to claim 424, wherein said motor moves an image bearing sheet. ### Claim 426 (depends on 417) An apparatus according to claim 417, further comprising a transmitter that transmits the image signal to an external processing apparatus for processing the image signal. ### Claim 427 An information communication apparatus comprising: a line sensor, having a main scanning direction, that receives a light image of an original and outputs an image signal; an illumination device that illuminates an original with a light beam having a line-shape cross-section extending along the main scanning direction of said line sensor, said illumination device comprising: a plurality of light sources; and an elongated light guide elongated in the main scanning direction, said elongated light guide comprising: a longitudinal end surface that receives light from said plurality of light sources; a light emitting surface; and a reflection part formed on a surface different from said light emitting surface and elongated in the main scanning direction, said reflection part being arranged so that, when said longitudinal end surface is positioned to receive light from said plurality of light sources, in at least a region near said plurality of light sources, a normal line passing through a center of a width of said reflection part deviates from at least one of said plurality of light sources, when viewed from said longitudinal end surface, and light introduced from said plurality of light sources is guided through said light guide in the main scanning direction, dispersed and/or reflected by said reflection part, and guided out of said light emitting surface so as to illuminate the original with a light beam having a line-shape cross-section extending along the main scanning direction of said line sensor; and communication unit that is configured to communicate the image signal to an external processing apparatus for processing the image signal. ### Claim 428 (depends on 427) An information communication apparatus according to claim 427, wherein said reflection part includes light-reflecting paint. ### Claim 429 (depends on 427) An information communication apparatus according to claim 427, wherein said reflection part includes a coarse surface. ### Claim 430 (depends on 427) An information communication apparatus according to claim 427, wherein said reflection part includes a sawtooth-shaped reflecting surface. ### Claim 431 (depends on 427) An information communication apparatus according to claim 427, wherein said plurality of light sources includes a light-emitting diode. ### Claim 432 (depends on 427) An information communication apparatus according to claim 427, further comprising: a processor that converts an image signal formed by said line sensor into a different electrical signal. ### Claim 433 (depends on 432) An information communication apparatus according to claim 432, wherein the different electrical signal is adapted for recording. ### Claim 434 (depends on 427) An information communication apparatus according to claim 427, further comprising: drive unit that shifts a positional relationship between an original illuminated by said illumination device and said line sensor. ### Claim 435 An information reading apparatus comprising: a line sensor, having a main scanning direction, that receives a light image of an original and outputs an image signal; an illumination device that illuminates an original with a light beam having a line-shape cross-section extending along the main scanning direction of said line sensor, said illumination device comprising: a plurality of light sources; and an elongated light guide elongated in the main scanning direction, said elongated light guide comprising: a longitudinal end surface that receives light from said plurality of light sources; a light emitting surface; and a reflection part formed on a surface different from said light emitting surface and elongated in the main scanning direction, said reflection part being arranged so that, when said longitudinal end surface is positioned to receive light from said plurality of light sources, in at least a region near said plurality of light sources, a normal line passing through a center of a width of said reflection part deviates from at least one of said plurality of light sources, when viewed from said longitudinal end surface, and light introduced from said plurality of light sources is guided through said light guide in the main scanning direction, dispersed and/or reflected by said reflection part, and guided out of said light emitting surface so as to illuminate the original with a light beam having a line-shape cross-section extending along the main scanning direction of said line sensor; and driving unit that shifts a positional relationship between an original illuminated by said illumination device and said line sensor. ### Claim 436 (depends on 435) An information reading apparatus according to claim 435, wherein said reflection part includes light-reflecting paint. ### Claim 437 (depends on 435) An information reading apparatus according to claim 435, wherein said reflection part includes a coarse surface. ### Claim 438 (depends on 435) An information reading apparatus according to claim 435, wherein said reflection part includes a sawtooth-shaped reflecting surface. ### Claim 439 (depends on 435) An information reading apparatus according to claim 435, wherein said plurality of light sources includes a light-emitting diode. ### Claim 440 (depends on 435) An information reading apparatus according to claim 435, further comprising: a processor that converts an image signal formed by said line sensor into a different electrical signal. ### Claim 441 (depends on 440) An information reading apparatus according to claim 440, wherein the different electrical signal is adapted for recording. ### Claim 442 (depends on 435) An information reading apparatus according to claim 435, wherein said drive unit includes a motor. ### Claim 443 (depends on 442) An information reading apparatus according to claim 442, wherein said motor moves an image bearing sheet. ### Claim 444 (depends on 435) An information reading apparatus according to claim 435, further comprising: a transmitter that transmits an image signal to an external processing apparatus.