# US 11,116,047 B2 · Heating device and camera using the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,116,047 B2 - Document ID: US11116047B2 - Status: Granted - Kind: B2 - Application number: 16/235,791 - Filed: 2018-12-28 - Published: 2019-07-04 - Granted: 2021-09-07 - Earliest claimed: 2017-12-29 - Assignees: Lite-On Electronics (Guangzhou) Limited; Lite-On Technology Corporation - Applicants: Lite-On Electronics (Guangzhou) Limited; Lite-On Technology Corporation - Inventors: Liang-Cheng Chien - Web page: https://patentgrep.com/patent/US11116047B2 ## CPC - H05B 3/84: Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields - G03B 17/55: with provision for heating or cooling, e.g. in aircraft - H05B 3/14: the material being non-metallic - G03B 17/08: Waterproof bodies or housings - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL - 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) ## Abstract A heating device is provided. The heating device is installed on a camera device, and includes a thermal sleeve, a thermally conductive elastomer and a heating sheet. The thermal sleeve has an inner-wall surface and an outer-wall surface. The thermally conductive elastomer is configured on the inner-wall surface of the thermal sleeve. The heating sheet is configured on the outer-wall surface of the thermal sleeve. The heat generated by the heating sheet can be transferred to the lens of the camera through the thermal sleeve and the thermally conductive elastomer to defog and defrost the lens. ## Claims ### Claim 1 A heating device installable on a camera device, wherein the heating device comprises: a thermal sleeve having a first inner-wall surface and a first outer-wall surface; a thermally conductive elastomer configured on the first inner-wall surface of the thermal sleeve and disposed between the camera device and the thermal sleeve, wherein the thermally conductive elastomer has an accommodation portion for receiving the camera device and tightly contacts with the camera device; and a heating sheet configured on the first outer-wall surface of the thermal sleeve and configured to conduct heat to the camera device through the thermal sleeve and the thermally conductive elastomer; wherein the thermal sleeve is disposed between the thermally conductive elastomer and the heating sheet and tightly contacts with the thermally conductive elastomer. ### Claim 2 (depends on 1) The heating device according to claim 1, further comprising: a casing, wherein the casing and the thermal sleeve together cover the entire heating sheet. ### Claim 3 (depends on 1) The heating device according to claim 1, further comprising: a temperature sensor configured on the heating sheet for sensing the temperature of the heating sheet; and a conducting wire connected to the heating sheet and electrically connected to the temperature sensor through the heating sheet. ### Claim 4 (depends on 1) The heating device according to claim 1, further comprising: a temperature sensor configured on the heating sheet for sensing the temperature of the heating sheet; and a controller electrically connected to the heating sheet for controlling the temperature of the heating sheet according to the signal of the temperature sensor. ### Claim 5 (depends on 1) The heating device according to claim 1, wherein the thermally conductive elastomer is formed of liquid silicone. ### Claim 6 (depends on 1) The heating device according to claim 1, wherein the thermally conductive elastomer has at least one groove and a second inner-wall surface, and the at least one groove is located on the second inner-wall surface. ### Claim 7 (depends on 1) The heating device according to claim 1, wherein the thermally conductive elastomer has a second outer-wall surface and a first engagement portion, the thermal sleeve has a second engagement portion matching the first engagement portion, the first engagement portion is formed on the second outer-wall surface and engaged with the second engagement portion. ### Claim 8 (depends on 1) The heating device according to claim 1, wherein the thermally conductive elastomer has a first flange and a second inner-wall surface, and the first flange is located on the leading edge of the thermally conductive elastomer and protruded from the second inner-wall surface. ### Claim 9 (depends on 1) The heating device according to claim 1, further comprising: a thermo switch configured on the heating sheet and electrically connected to the heating sheet. ### Claim 10 (depends on 1) The heating device according to claim 1, further comprising: a conducting wire connected to the heating sheet; and a controller located outside the heating sheet and connected to the conducting wire for controlling the temperature of the heating sheet through the conducting wire. ### Claim 11 (depends on 1) The heating device according to claim 1, wherein the thermal sleeve has a second flange extended outwards from the first outer-wall surface to stop the heating sheet. ### Claim 12 (depends on 1) The heating device according to claim 1, further comprising: a casing covering the heating sheet and the thermal sleeve; and a conducting wire passing through the casing from the heating sheet. ### Claim 13 (depends on 1) A camera, comprising: a camera device; and a heating device installed on the camera device according to claim 1. ### Claim 14 (depends on 13) The camera according to claim 13, wherein the heating device further comprises: a casing, wherein the casing and the thermal sleeve together cover the entire heating sheet. ### Claim 15 (depends on 13) The camera according to claim 13, wherein the heating device further comprises: a temperature sensor configured on the heating sheet for sensing the temperature of the heating sheet; and a conducting wire connected to the heating sheet and electrically connected to the temperature sensor through the heating sheet. ### Claim 16 (depends on 13) The camera according to claim 13, wherein the heating device further comprises: a temperature sensor configured on the heating sheet for sensing the temperature of the heating sheet; and a controller electrically connected to the heating sheet for controlling the temperature of the heating sheet according to the signal of the temperature sensor. ### Claim 17 (depends on 13) The camera according to claim 13, wherein the thermally conductive elastomer has at least one groove and a second inner-wall surface, and the at least one groove is located on the second inner-wall surface. ### Claim 18 (depends on 13) The camera according to claim 13, wherein the thermally conductive elastomer has a second outer-wall surface and a first engagement portion, the thermal sleeve has a second engagement portion matching the first engagement portion, and the first engagement portion is formed on the second outer-wall surface and is engaged with the second engagement portion. ### Claim 19 (depends on 13) The camera according to claim 13, wherein the thermally conductive elastomer has a first flange and a second inner-wall surface, and the first flange is located on the leading edge of the thermally conductive elastomer and protruded from the second inner-wall surface. ### Claim 20 (depends on 13) The camera according to claim 13, wherein the thermal sleeve has a second flange extended outwards from the first outer-wall surface to stop the heating sheet.