# US 11,906,120 B2 · Hybrid function LED auxiliary lamp for motor vehicles > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,906,120 B2 - Document ID: US11906120B2 - Status: Granted - Kind: B2 - Application number: 17/880,564 - Filed: 2022-08-03 - Published: 2024-01-04 - Granted: 2024-02-20 - Earliest claimed: 2022-08-03 - Assignees: Lumileds LLC - Applicants: Lumileds LLC - Inventors: Junxin Wang; Jiangliang Wang; Dongdong Wei; Chen Cai - Web page: https://patentgrep.com/patent/US11906120B2 ## CPC - F21S 41/148: the main emission direction of the LED being perpendicular to the optical axis - F21S 41/151: arranged in one or more lines - F21S 41/192: {Details of lamp holders, terminals or connectors} - F21S 41/28: {Cover glass} - F21S 41/321: {the reflector being a surface of revolution or a planar surface, e.g. truncated} - F21S 43/14: Light emitting diodes [LED] - F21S 43/195: {Details of lamp holders, terminals or connectors} - F21S 43/31: Optical layout thereof - F21S 43/37: Attachment thereof - F21V 21/30: Pivoted housings or frames - F21W 2102/00: Exterior vehicle lighting devices for illuminating purposes - F21W 2103/55: Daytime running lights [DRL] - F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR - F21W: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS ## Abstract A hybrid function LED auxiliary lamp is provided. The auxiliary lamp comprises a housing and a lighting assembly disposed within the housing. The lighting assembly includes a plurality of LED light sources mounted on a printed circuit board. An optical manifold comprising a plurality of reflective cavities is mounted on the printed circuit board. Each reflective cavity defines a respective corresponding focal point. The LED light sources are aligned with respect to the optical manifold such that a center of each respective LED light source corresponds to a respective focal point of a reflective cavity. ## Claims ### Claim 1 A vehicular auxiliary lamp comprising: a housing; a lighting assembly disposed within the housing, the lighting assembly including: a printed circuit board (PCB), an optical manifold mounted on the PCB, the optical manifold comprising: a plurality of road illuminating reflective cavities arranged adjacent one another along a length of the PCB, each one of the plurality of reflective cavities: defining a respective corresponding focal point, intersecting at least one other one of the plurality of reflective cavities at an intersection region, and having a bottom surface facing the PCB and a top surface opposite the bottom surface, and a plurality of signaling reflectors, each of the plurality of light signaling reflectors being disposed over a top surface of the road illuminating reflective cavities at a respective one of the intersection regions, a plurality of road illuminating light sources on the PCB with a center of each road illuminating light source aligned with the focal point of a respective corresponding road illuminating reflective cavity, and a plurality of light signaling light sources with a center of each of the plurality of signaling light sources aligned with a focal point of a corresponding signaling reflector. ### Claim 2 (depends on 1) The vehicular lamp of claim 1 wherein each of the road illuminating cavities defines a paraboloid and comprises a plurality of curved surfaces, each curved surface defined by a radius of curvature selected such that light reflected from the road illuminating LED light source will be distributed in accordance with pre-determined light distribution requirement. ### Claim 3 (depends on 1) The vehicular lamp of claim 1 wherein the vehicular lamp provides road illuminating functions using light reflected from the road illuminating cavities, and also provides signaling functions using light reflected from the signaling ref lectors. ### Claim 4 (depends on 1) The vehicular lamp of claim 1 wherein a total surface area of the signaling reflectors is greater than or equal to 25 square centimeters and less than or equal to 200 square centimeters. ### Claim 5 (depends on 1) The vehicular lamp of claim 1 wherein a signaling reflector is formed at every other intersection region. ### Claim 6 (depends on 1) The vehicular lamp of claim 1 wherein a signaling reflector is formed at every intersection region. ### Claim 7 A lighting assembly for a vehicle auxiliary light comprising: a printed circuit board; an optical manifold mounted on the printed circuit board, the optical manifold comprising: a plurality of road illuminating reflective cavities arranged adjacent one another along a length of the printed circuit board, each one of the plurality of reflective cavities: defining a respective corresponding focal point, intersecting at least one other one of the plurality of reflective cavities at an intersection region, and having a bottom surface facing the PCB and a top surface opposite the bottom surface, and a plurality of signaling reflectors, each of the plurality of light signaling reflectors being disposed over a top surface of the road illuminating reflective cavities at a respective one of the intersection regions, a plurality of road illuminating light sources on the PCB with a center of each road illuminating light source aligned with the focal point of a respective corresponding road illuminating reflective cavity, and a plurality of light signaling light sources with a center of each of the plurality of signaling light sources aligned with a focal point of a corresponding signaling reflector. ### Claim 8 (depends on 7) The lighting assembly of claim 7 wherein each of the road-illuminating cavities defines a paraboloid and comprises a plurality of curved surfaces, each curved surface defined by a radius of curvature selected such that light reflected from the road illuminating LED light source will be distributed in accordance with pre-determined light distribution requirement. ### Claim 9 (depends on 7) The vehicular lamp of claim 7 wherein the vehicular lamp provides road illuminating functions using light reflected from the road illuminating reflective cavities, and also provides signaling functions using the signaling reflectors. ### Claim 10 (depends on 7) The vehicular lamp of claim 7 wherein a total surface area of the signaling reflectors is greater than or equal to 25 square centimeters and less than or equal to 200 square centimeters. ### Claim 11 (depends on 7) The lighting assembly of claim 7 wherein a signaling reflector is formed at every other intersection region. ### Claim 12 (depends on 7) The lighting assembly of claim 7 wherein a signaling reflector is formed at every intersection region.