# US 11,906,128 B1 · Lamp having optics and illuminating light guides > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,906,128 B1 - Document ID: US11906128B1 - Status: Granted - Kind: B1 - Application number: 18/141,589 - Filed: 2023-05-01 - Granted: 2024-02-20 - Earliest claimed: 2023-05-01 - Assignees: Ford Global Technologies, LLC - Applicants: Ford Global Technologies, LLC - Inventors: Linsheng Chen; Arun Kumar; Brandon J. Schwandt; Derek English; Omar Benjamin Lara Monarrez - Web page: https://patentgrep.com/patent/US11906128B1 ## CPC - F21S 43/241: of complex shape - F21S 43/26: {Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255} - F21S 43/14: Light emitting diodes [LED] - F21S 43/237: rod-shaped - F21S 43/245: emitting light from one or more of its major surfaces - F21S 43/247: with a single light source being coupled into the light guide - F21W 2103/10: Position lights - F21W 2103/35: Brake lights - F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS - F21W: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS ## Abstract A lamp includes a light source, a central lens optically aligned with the light source to receive a first portion of light emitted by the light source and transmit the first portion of light in a first output beam, a side emitting lens generally disposed between the central lens and the light source and arranged to receive a second portion of the light, and a plurality of light guides each having a light input end and operatively coupled to the side emitting lens to receive the second portion of light emitted from the light source that is directed through the side emitting lens and having a light output end, wherein each of the plurality of light guides has a light refraction structure on a first side for directing the second portion of the light in a second output beam from a second side. ## Claims ### Claim 1 A lamp comprising: a light source; a central lens having an optical axis optically aligned with the light source to receive a first portion of light emitted by the light source and transmit the first portion of light in a first output beam centered about the optical axis; a side emitting lens arranged perpendicular to the optical axis directly below the central lens and generally disposed between the central lens and the light source and arranged to receive a second portion of the light and direct the second portion of the light perpendicular to the optical axis; and a plurality of light guides each having a light input end and operatively coupled to the side emitting lens to receive the second portion of light emitted from the light source that is directed through the side emitting lens and having a light output end, wherein each of the plurality of light guides has a light refraction structure on a first side for directing the second portion of the light in a second output beam from a second side. ### Claim 2 (depends on 1) The lamp of claim 1, wherein the light refraction structure comprises a plurality of prisms. ### Claim 3 (depends on 2) The lamp of claim 2, wherein each prism has a V-shaped groove formed in a surface of a light transmissive medium. ### Claim 4 (depends on 3) The lamp of claim 3, wherein the V-shaped groove has an incline angle in the range of 30-60 degrees, and wherein each prism has a depth and a length that increases along a length of the light guide from a first location closer to the input as compared to a second location closer to the output. ### Claim 5 (depends on 4) The lamp of claim 4, wherein a gap between adjacent prisms decreases along a length of the light guide from the light input end to the light output end. ### Claim 6 (depends on 1) The lamp of claim 1, wherein the light refraction structure comprises a textured surface. ### Claim 7 (depends on 6) The lamp of claim 6, wherein the textured surface increases in density from the input to the output. ### Claim 8 (depends on 1) The lamp of claim 1, wherein the lamp is configured to be installed on a vehicle. ### Claim 9 (depends on 8) The lamp of claim 8, wherein the lamp is configured to be installed as a brake lamp on the vehicle. ### Claim 10 (depends on 1) The lamp of claim 1, wherein each of the plurality of light guides comprises at least one of PMMA and polycarbonate. ### Claim 11 (depends on 1) The lamp of claim 1, wherein the central lens comprises a pillow lens. ### Claim 12 (depends on 1) The lamp of claim 1, wherein the central lens comprises an aspheric lens. ### Claim 13 A vehicle lamp comprising: a connector configured to connect to a vehicle; a light source; a central lens having an optical axis optically aligned with the light source to receive a first portion of light emitted by the light source and transmit the first portion of light in a first output beam centered about the optical axis; a side emitting lens arranged perpendicular to the optical axis directly below the central lens and generally disposed between the central lens and the light source and arranged to receive a second portion of the light and direct the second portion of the light perpendicular to the optical axis; and a plurality of light guides each having a light input end and operatively coupled to the side emitting lens to receive the second portion of light emitted from the light source that is directed through the side emitting lens and having a light output end, wherein each of the plurality of light guides has a light refraction structure on a rear side for directing the second portion of the light in a second output beam from a front side. ### Claim 14 (depends on 13) The vehicle lamp of claim 13, wherein the light refraction structure comprises a plurality of prisms. ### Claim 15 (depends on 14) The vehicle lamp of claim 14, wherein each prism has a V-shaped groove formed in a surface of a light transmissive medium. ### Claim 16 (depends on 15) The vehicle lamp of claim 15, wherein the V-shaped groove has an incline angle in the range of 30-60 degrees, and wherein each prism has a depth and a length that increases along a length of the light guide from a first location closer to the input as compared to a second location closer to the output. ### Claim 17 (depends on 16) The vehicle lamp of claim 16, wherein a gap between adjacent prisms decreases along a length of the light guide from the light input end to the light output end. ### Claim 18 (depends on 13) The vehicle lamp of claim 13, wherein the light refraction structure comprises a textured surface. ### Claim 19 (depends on 18) The vehicle lamp of claim 18, wherein the textured surface increases in density from the input to the output. ### Claim 20 (depends on 13) The vehicle lamp of claim 13, wherein the lamp is configured to be installed as a brake lamp on the vehicle.