# US 9,039,255 B2 · Light source device, projector, and light source device fabrication method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,039,255 B2 - Document ID: US9039255B2 - Status: Granted - Kind: B2 - Application number: 13/474,000 - Filed: 2012-05-17 - Published: 2012-11-22 - Granted: 2015-05-26 - Earliest claimed: 2011-05-18 - Assignees: Casio Computer Co., Ltd. - Applicants: Toshifumi Kase - Inventors: Toshifumi Kase - Web page: https://patentgrep.com/patent/US9039255B2 ## CPC - G03B 21/145: {Housing details, e.g. position adjustments thereof} - G03B 21/16: Cooling; Preventing overheating - G03B 21/2013: {Plural light sources} - G03B 21/204: {using secondary light emission, e.g. luminescence or fluorescence (using different colours G03B33/00; if related to video signals H04N9/3197)} - G03B 33/12: using beam-splitting or beam-combining systems, e.g. dichroic mirrors - H04N 9/3111: {for displaying the colours sequentially, e.g. by using sequentially activated light sources (sequential projection in colour photography G03B33/08)} - H04N 9/3161: {using laser light sources (using laser beams scanning the display screen H04N9/3129)} - Y10T 29/49954: Fastener deformed after application - G03B: APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR (optical parts of such apparatus G02B; photosensitive materials or processes for photographic purposes G03C; apparatus for processing exposed photographic materials G03D) - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A light source device which can prevent the removal of light source elements of a light source device within a projector casing, a projector and a light source fabrication method are provided. An excitation light shining device 70 has a lens holding structure 79 and a light source holding structure 80 which are integrated together with excitation light sources held therebetween. The lens holding structure 79 has through holes 79f which first screw members 84 penetrate, and the light source holding structure 80 has screw holes 80h and screw holes 80k communicating with the screw holes 80h substantially at right angles. With the first screw members 84 penetrating the through holes 79f to be screwed into the screw holes 80h, screw thread portions of the first screw members 84 are pressed to be deformed plastically by distal end portions of the second screw members 85. ## Claims ### Claim 1 A light source device comprising: a light source element which is held between a first holding structure and a second holding structure, wherein the first holding structure has a through hole which is formed so as to extend towards the second holding structure and which allows a first screw member to be put therethrough, wherein the second holding structure has (a) a first screw hole which communicates with the through hole and into which a rod-shaped main body portion of the first screw member is screwed and (b) a second insertion hole which communicates with the first screw hole substantially at right angles and into which a second insertion member is inserted, and wherein in a state in which that the first screw member is put through the through hole and screwed into the first screw hole, the second insertion member presses a screw thread portion of the main body portion of the first screw member so as to deform the screw thread portion plastically by a distal end portion of the second insertion member. ### Claim 2 (depends on 1) A light source device as set forth in claim 1, wherein the first screw member loosely fits in the through hole. ### Claim 3 (depends on 1) A light source device as set forth in claim 1, further comprising: a fixing member which integrates the first holding structure and the second holding structure into one unit. ### Claim 4 (depends on 1) A light source device as set forth in claim 1, wherein the first holding structure holds a collimator lens which collects light emitted from the light source element. ### Claim 5 (depends on 1) A light source device as set forth in claim 1, wherein the light source element comprising a laser diode. ### Claim 6 (depends on 1) A light source device as set forth in claim 1, wherein a head portion of the second insertion member is covered by a sealing agent. ### Claim 7 (depends on 6) A light source device as set forth in claim 6, wherein a surface of the second holding member has a recessed hole portion which accommodates the head portion of the second insertion member, and wherein the head portion of the second insertion member is covered by the sealing agent in a state in which the head portion is accommodated in the recessed hole portion. ### Claim 8 (depends on 1) A projector comprising: a light source device; a display element which forms an optical image with light emitted by the light source device; a projection side optical system which projects the optical image formed by the display element on to a screen; and a projector control unit which controls the light source device and the display element, wherein the light source device is the light source device set forth in claim 1. ### Claim 9 (depends on 8) A projector as set forth in claim 8, wherein the second insertion hole and the second insertion member disposed in the second insertion hole are provided on a bottom surface side of the light source device, and wherein the light source device is disposed inside an opening portion which is provided in a bottom surface of the projector. ### Claim 10 A light source device fabrication method for fabricating a light source device which holds a light source element between a first holding structure and a second holding structure comprising: a first preparatory step of preparing in the first holding structure a through hole which is formed so as to extend towards the second holding structure and which allows a first screw member to be put therethrough; a second preparatory step of preparing in the second holding structure (a) a first screw hole which communicates with the through hole and into which a rod-shaped main body portion of the first screw member is screwed and (b) a second insertion hole which communicates with the first screw hole substantially at right angles and into which a second insertion member is inserted; a screwing step of allowing the first screw member to be put through the through hole to thereby be screwed into the first screw hole; and a plastic deformation step of inserting the second insertion member into the second insertion hole so that a distal end of the second insertion member presses a screw thread portion of the first screw member so as to plastically deform the screw thread portion. ### Claim 11 (depends on 10) A light source device fabrication method as set forth in claim 10, wherein the light source device further comprises a fixing member which integrates the first holding structure and the second holding structure into one unit, and wherein the light source device fabrication method further comprising a fixing step of integrating the first holding structure and the second holding structure into one unit by the fixing member which is executed before the screwing step. ### Claim 12 (depends on 10) A light source device fabrication method as set forth in claim 10, wherein the second holding structure holds a collimator lens which collects light emitted from the light source element, wherein the light source device fabrication method further comprising an optical axes adjustment step of adjusting optical axes of the collimator lens and the light source element, and wherein the optical axes adjustment step is executed before the fixing step or after the fixing step. ### Claim 13 (depends on 10) A light source device fabrication method as set forth in claim 10, further comprising: a sealing step of embedding a head portion of the second insertion member with a sealing agent which is executed after the plastic deformation step. ### Claim 14 (depends on 10) A projector fabrication method for fabricating a projector including a light source device, comprising: an incorporating step of incorporating a light source device fabricated by the light source device fabrication method as set forth in claim 10 into a casing of a projector; and an optical characteristics adjusting step of adjusting optical characteristics of the projector, wherein the optical characteristics adjusting step is executed after the screwing step and before the plastic deformation step.