# US 2015/0176801 A1 · Luminous flux control member, light emitting apparatus, illuminating apparatus, and display apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2015/0176801 A1 - Document ID: US20150176801A1 - Status: Published application - Kind: A1 - Application number: 14/409,631 - Filed: 2013-06-11 - Published: 2015-06-25 - Earliest claimed: 2012-06-22 - Assignees: Enplas Corporation - Applicants: Enplas Corporation - Inventors: Hiroshi Takatori - Web page: https://patentgrep.com/patent/US20150176801A1 ## CPC - F21V 7/0016: {on lighting devices that also provide for direct lighting, e.g. by means of independent light sources, by splitting of the light beam, by switching between both lighting modes} - F21S 8/04: intended only for mounting on a ceiling or the like overhead structures (F21S8/02 takes precedence; {details of ceiling bases F21V21/03}) - F21V 5/04: of lens shape - F21V 5/08: producing an asymmetric light distribution - F21V 7/0091: {using total internal reflection} - F21V 7/05: plane - F21V 33/0052: {Audio or video equipment, e.g. televisions, telephones, cameras or computers; Remote control devices therefor} - G02B 19/0028: {refractive and reflective surfaces, e.g. non-imaging catadioptric systems} - F21Y 2103/10: comprising a linear array of point-like light-generating elements - F21Y 2115/10: Light-emitting diodes [LED] - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR - F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED ## Abstract A light flux controlling member (100) of the present invention has: an incident part (110) that receives light emitted from a light emitting element (210); a total reflection surface (120) that reflects a part of light incident from the incident part (110) toward a front side; a first emission part (130) that emits incident light received directly from the incident part (110) and light reflected at the total reflection surface (120) toward the outside; and a second emission part (160) that is protruded to the outside from the total reflection surface (120) and emits another part of light incident from the emission part (110) toward the outside. ## Claims ### Claim 1 A light flux controlling member that controls a distribution of light emitted from a light emitting element, comprising: an incident part that is formed at a back side of the light flux controlling member so as to intersect a central axis of the light flux controlling member and that receives light emitted from the light emitting element; a total reflection surface that is formed so as to surround the central axis and so as to have a diameter that gradually increases from the back side toward a front side of the light flux controlling member and that reflects a part of light incident from the incident part toward the front side; a first emission part that is formed at the front side so as to intersect the central axis and that emits incident light received directly from the incident part and light reflected at the total reflection surface toward the outside; and a second emission part being formed of one or two or more plate-like parts extending in a radial direction from the total reflection surface, the second emission part being configured to emit another part of light incident from the emission part toward the outside. ### Claim 2 (canceled) ### Claim 3 (depends on 1) The light flux controlling member according to claim 1, wherein the second emission part is formed of a pair of plate-like parts disposed 180 degrees away from each other circumferentially around the central axis. ### Claim 4 (depends on 1) A light emitting device comprising the light flux controlling member according to claim 1 and a light emitting element, wherein a central axis of the light flux controlling member and an optical axis of the light emitting element coincide with each other. ### Claim 5 (depends on 4) An illumination apparatus comprising the light emitting device according to claim 4 and a member to be irradiated with light emitted from the light emitting device, wherein the light emitting device is disposed such that the larger the emission angle of light emitted from the light emitting device relative to an optical axis of the light emitting element becomes, the smaller the incident angle to the member to be irradiated becomes. ### Claim 6 (depends on 5) The illumination apparatus according to claim 5, wherein the second emission part is formed of a pair of plate-like parts disposed 180 degrees away from each other circumferentially around the central axis, and the light emitting device is disposed such that a straight line orthogonal to a central axis of the light flux controlling member and passing through an inside of the pair of plate-like parts and the member to be irradiated are parallel to each other. ### Claim 7 (depends on 5) A display apparatus comprising: the illumination apparatus according to claim 5; and a display member to be irradiated with light emitted from the illumination apparatus. ### Claim 8 (depends on 3) A light emitting device comprising the light flux controlling member according to claim 3 and a light emitting element, wherein a central axis of the light flux controlling member and an optical axis of the light emitting element coincide with each other. ### Claim 9 (depends on 8) An illumination apparatus comprising the light emitting device according to claim 8 and a member to be irradiated with light emitted from the light emitting device, wherein the light emitting device is disposed such that the larger the emission angle of light emitted from the light emitting device relative to an optical axis of the light emitting element becomes, the smaller the incident angle to the member to be irradiated becomes. ### Claim 10 (depends on 9) The illumination apparatus according to claim 9, wherein the second emission part is formed of a pair of plate-like parts disposed 180 degrees away from each other circumferentially around the central axis, and the light emitting device is disposed such that a straight line orthogonal to a central axis of the light flux controlling member and passing through an inside of the pair of plate-like parts and the member to be irradiated are parallel to each other. ### Claim 11 (depends on 9) A display apparatus comprising: the illumination apparatus according to claim 9; and a display member to be irradiated with light emitted from the illumination apparatus.