# US 9,768,882 B2 · External light guide for electronic devices > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,768,882 B2 - Document ID: US9768882B2 - Status: Granted - Kind: B2 - Application number: 15/212,910 - Filed: 2016-07-18 - Published: 2016-11-10 - Granted: 2017-09-19 - Earliest claimed: 2013-06-20 - Assignees: ProTVSolutions LLC - Applicants: ProTVSolutions LLC - Inventors: Guillermo Castano - Web page: https://patentgrep.com/patent/US9768882B2 ## CPC - H04B 10/60: Receivers - G08C 23/04: using light waves, e.g. infrared - H04B: TRANSMISSION - G08C: TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS (fluid pressure transmitting systems F15B; mechanical means for transferring the output of a sensing member into a different variable G01D5/00; mechanical control systems G05G) ## Abstract The present invention is directed, in part, to a receiver for an infrared light source. The receiver comprises a substantially transparent body; a sensor for receiving infrared light; and a substantially planar first surface on the transparent body. The first surface is configured to direct light from the infrared light source to the sensor. The substantially planar first surface comprises the end of the substantially transparent body. The substantially planar first surface provides an internally reflective surface that directs light into the interior of the substantially transparent body so it will make contact with the sensor. ## Claims ### Claim 1 A receiver for an infrared light source, the receiver comprising: a substantially transparent body; a sensor for receiving infrared light; and a substantially planar first surface on the transparent body, the first surface configured to direct light from the infrared light source to the sensor; wherein the substantially planar first surface comprises the end of the substantially transparent body; wherein substantially planar first surface has a surface area at least 50 percent the cross sectional surface area of the substantially transparent body, the cross section take in a plane perpendicular to a line intersecting the substantially planar first surface of the transparent body and the sensor. ### Claim 2 (depends on 1) The receiver for an infrared light source of claim 1, wherein the substantially planar surface of the transparent body comprises substantially all of an end of the transparent body. ### Claim 3 (depends on 1) The receiver for an infrared light source of claim 1, wherein the substantially planar surface of the transparent body is located opposite the sensor. ### Claim 4 (depends on 1) The receiver for an infrared light source of claim 1, wherein the substantially planar surface of the transparent body has an angle of from 30 to 60 degrees relative to an adjacent wall of the substantially transparent body. ### Claim 5 (depends on 1) The receiver for an infrared light source of claim 1, wherein the substantially planar surface of the transparent body has an angle 45 degrees relative to an adjacent wall of the substantially transparent body. ### Claim 6 (depends on 1) The receiver for an infrared light source of claim 1, wherein the transparent body is comprised of a polymeric material. ### Claim 7 (depends on 1) The receiver for an infrared light source of claim 1, wherein substantially planar first surface has a surface area at least 100 percent the cross sectional surface area of the substantially transparent body, the cross section take in a plane perpendicular to a line intersecting the substantially planar first surface of the transparent body and the sensor. ### Claim 8 (depends on 1) The receiver for an infrared light source of claim 1, wherein substantially planar first surface has a surface area at least 150 percent the cross sectional surface area of the substantially transparent body, the cross section take in a plane perpendicular to a line intersecting the substantially planar first surface of the transparent body and the sensor. ### Claim 9 (depends on 1) The receiver for an infrared light source of claim 1, wherein the substantially planar first surface provides an internally reflective surface. ### Claim 10 A receiver for an infrared light source, the receiver comprising: a substantially transparent body; a sensor for receiving infrared light; and a surface on the transparent body, the first surface configured to direct light from the infrared light source to the sensor; wherein the substantially planar first surface provides an internally reflective surface; wherein the surface of the transparent body configured to direct light from the infrared light source to the sensor has a surface area at least 50 percent the cross sectional surface area of the substantially transparent body, the cross section take in a plane perpendicular to a line intersecting the substantially planar first surface of the transparent body and the sensor. ### Claim 11 (depends on 10) The receiver for an infrared light source of claim 10, wherein the surface of the transparent body configured to direct light from the infrared light source to the sensor comprises substantially all of an end of the transparent body. ### Claim 12 (depends on 10) The receiver for an infrared light source of claim 10, wherein the surface of the transparent body configured to direct light from the infrared light source to the sensor of the transparent body is located opposite the sensor. ### Claim 13 (depends on 10) The receiver for an infrared light source of claim 10, wherein the surface of the transparent body configured to direct light from the infrared light source to the sensor has an angle of from 30 to 60 degrees relative to an adjacent wall of the substantially transparent body. ### Claim 14 (depends on 10) The receiver for an infrared light source of claim 10, wherein the surface of the transparent body configured to direct light from the infrared light source to the sensor has an angle 45 degrees relative to an adjacent wall of the substantially transparent body. ### Claim 15 (depends on 10) The receiver for an infrared light source of claim 10, wherein the transparent body is comprised of a polymeric material. ### Claim 16 (depends on 10) The receiver for an infrared light source of claim 10, wherein the surface of the transparent body configured to direct light from the infrared light source to the sensor has a surface area at least 100 percent the cross sectional surface area of the substantially transparent body, the cross section take in a plane perpendicular to a line intersecting the substantially planar first surface of the transparent body and the sensor. ### Claim 17 (depends on 10) The receiver for an infrared light source of claim 10 wherein the surface of the transparent body configured to direct light from the infrared light source to the sensor has a surface area at least 150 percent the cross sectional surface area of the substantially transparent body, the cross section take in a plane perpendicular to a line intersecting the substantially planar first surface of the transparent body and the sensor. ### Claim 18 (depends on 10) The receiver for an infrared light source of claim 10, wherein the substantially planar first surface is substantially planar.