# US 12,003,840 B2 · Light emitting diode fixtures for vehicle photographic systems > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,003,840 B2 - Document ID: US12003840B2 - Status: Granted - Kind: B2 - Application number: 17/635,746 - Filed: 2020-07-29 - Published: 2022-09-29 - Granted: 2024-06-04 - Earliest claimed: 2019-07-30 - Assignees: Carvana, LLC - Applicants: Carvana, LLC - Inventors: Davo Scheich - Web page: https://patentgrep.com/patent/US12003840B2 ## CPC - G03B 15/07: Arrangements of lamps in studios - H04N 23/56: provided with illuminating means - G03B 15/03: Combinations of cameras with lighting apparatus; Flash units - G06K 7/10297: {arrangements for handling protocols designed for non-contact record carriers such as RFIDs NFCs, e.g. ISO/IEC 14443 and 18092 (cryptographic protocols H04L9/00; network security protocols H04L63/00; real-time communication protocols in data switching networks H04L65/00; network protocols for data switching network services H04L67/00)} - H04N 23/62: Control of parameters via user interfaces - H04N 23/66: Remote control of cameras or camera parts, e.g. by remote control devices - H04N 23/90: Arrangement of cameras or camera modules, e.g. multiple cameras in TV studios or sports stadiums - F21V 29/67: characterised by the arrangement of fans - F21Y 2105/16: square or rectangular, e.g. for light panels - F21Y 2115/10: Light-emitting diodes [LED] - G03B 2215/0567: Solid-state light source, e.g. LED, laser - H04N 7/181: {for receiving images from a plurality of remote sources} - 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 - G06K: GRAPHICAL DATA READING (image or video recognition or understanding G06V); PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR - F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED ## Abstract A modular lighting fixture is provided for use in photographic chambers that provides a combination of high flux, the ability to place/tuck the lighting fixture against a wall, and the ability to flash/tune the lighting fixture dynamically. The lighting fixture is based on light emitting diode elements to provide an energy efficient light source that generates far less heat than traditional mercury arc based lamps. The lighting fixture is modular and can be daisy chained to supply power and/or control signals to multiple attached lighting fixtures. Individual lighting fixtures may be joined together to form an array of lighting fixtures. The lighting fixtures may utilize the digital multiplex DMX512 standard for digital communication networks for controlling the lighting elements within the fixtures. The lighting fixture has a light output that is capable of providing a wide beam angle. ## Claims ### Claim 1 A modular light fixture comprising: a housing; a heatsink coupled to the housing; a lighting lens coupled to a top surface of the heatsink; and one or more fans within the housing, wherein a light spread of the lighting lens is configured to be changed by de-coupling the heatsink from the housing, rotating the heatsink relative to the housing, and re-coupling the heatsink to the housing. ### Claim 2 (depends on 1) The modular light fixture of claim 1, further comprising an airline with a set of nozzles that are configured to supply air in periodic bursts to clean the one or more fans. ### Claim 3 (depends on 1) The modular light fixture of claim 1, further comprising an airline with a set of nozzles that are configured to supply a continuous supply of air to cool the modular light fixture. ### Claim 4 (depends on 1) The modular light fixture of claim 1, further comprising additional modular lighting fixtures that are joined in an array using a signal bus. ### Claim 5 (depends on 1) The modular light fixture of claim 1, wherein the heatsink comprises an overhang extending beyond an edge of the housing, the overhang creating an offset allowing a cable to pass between the modular light fixture and additional modular lighting fixtures arranged in an array. ### Claim 6 (depends on 5) The modular light fixture of claim 5, wherein the housing has an approximately box shape and the heatsink is coupled on top of the housing. ### Claim 7 (depends on 1) The modular light fixture of claim 1, wherein the light spread of the lighting lens changes to a sundog. ### Claim 8 A method for using a modular light fixture, the method comprising: de-coupling a heatsink from a housing containing one or more fans; rotating the heatsink relative to the housing; coupling the heatsink to the housing; and activating a lighting lens coupled to a top surface of the heatsink, wherein a light spread of the lighting lens is changed, in response to the rotating the heatsink relative to the housing. ### Claim 9 (depends on 8) The method of claim 8, further comprising activating an airline with a set of nozzles that supply air in periodic bursts to clean the one or more fans. ### Claim 10 (depends on 8) The method of claim 8, further comprising activating an airline with a set of nozzles that supply a continuous supply of air to cool the modular light fixture. ### Claim 11 (depends on 8) The method of claim 8, further comprising joining two or more modular lighting fixtures in an array using a signal bus. ### Claim 12 (depends on 8) The method of claim 8, further comprising: arranging two or more modular lighting fixtures in an array; and passing a cable between the two or more modular lighting fixtures through an offset created by an overhang of the heatsink, the overhang extending beyond an edge of the housing. ### Claim 13 (depends on 8) The method of claim 8, wherein the housing has an approximately box shape and the heatsink is coupled on top of the housing. ### Claim 14 (depends on 8) The method of claim 8, wherein the light spread of the lighting lens changes to a sundog. ### Claim 15 A method of manufacturing a modular light fixture, the method comprising: arranging one or more fans within a housing; coupling a lighting lens to a top surface of a heatsink; and coupling the heatsink to the housing, wherein a light spread of the lighting lens is configured to be changed by de-coupling the heatsink from the housing, rotating the heatsink relative to the housing, and re-coupling the heatsink to the housing. ### Claim 16 (depends on 15) The method of claim 15, further comprising placing an airline with a set of nozzles that supply air in periodic bursts to clean the one or more fans. ### Claim 17 (depends on 15) The method of claim 15, further comprising placing an airline with a set of nozzles that supply a continuous supply of air to cool the modular light fixture. ### Claim 18 (depends on 15) The method of claim 15, further comprising joining two or more modular lighting fixtures in an array using a signal bus. ### Claim 19 (depends on 15) The method of claim 15, further comprising: arranging two or more modular lighting fixtures in an array; and passing a cable between the two or more modular lighting fixtures through an offset created by an overhang of the heatsink, the overhang extending beyond an edge of the housing. ### Claim 20 (depends on 15) The method of claim 15, wherein the housing has an approximately box shape and the heatsink is coupled on top of the housing.