# US 12,181,138 B2 · Luminaire having a data transmission function > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,181,138 B2 - Document ID: US12181138B2 - Status: Granted - Kind: B2 - Application number: 17/767,076 - Filed: 2020-10-07 - Published: 2022-11-17 - Granted: 2024-12-31 - Earliest claimed: 2019-10-07 - Assignees: Tridonic GmbH & Co KG - Applicants: Tridonic GmbH & Co KG - Inventors: Patrik Yves Koch; Frank Lochmann; Markus Schertler; Patrick Schnell; Lukas Simma; Patrick Walch; Markus Mayrhofer; Thomas Zengerle - Web page: https://patentgrep.com/patent/US12181138B2 ## CPC - F21V 23/0435: {activated by remote control means} - H01Q 1/44: using equipment having another main function to serve additionally as an antenna {, e.g. means for giving an antenna an aesthetic aspect}(H01Q1/27 - H01Q1/34 take precedence) - F21S 8/04: intended only for mounting on a ceiling or the like overhead structures (F21S8/02 takes precedence; {details of ceiling bases F21V21/03}) - H01Q 1/22: by structural association with other equipment or articles - H01Q 13/10: Resonant slot antennas - H01Q 13/18: the slot being backed by, or formed in boundary wall of, a resonant cavity (longitudinally slotted cylinder H01Q13/12 ){; Open cavity antennas} - F21Y 2115/10: Light-emitting diodes [LED] - H01Q 13/16: Folded slot antennas - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) - F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS - 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 The present invention relates to a luminaire having at least one illuminant (6), a luminaire housing (1), and at least one operating device (4), arranged in the luminaire housing (1), for the at least one illuminant (6), wherein the operating device (4) has an antenna (5) for transmitting and receiving a radio signal, and the luminaire housing (1) has at least one slot antenna (2) that is coupled to the antenna (5) of the operating device (4) by means of radiation coupling, a waveguide, or a cavity resonator in order to transmit the radio signal to outside the luminaire housing (1). ## Claims ### Claim 1 A luminaire, having: at least one illuminant (6), a metallic luminaire housing (1), and at least one operating device (4), arranged in the metallic luminaire housing (1), for the at least one illuminant (6), wherein the operating device (4) has an RF antenna (5) for transmitting a radio signal having a wavelength, and the luminaire housing (1) has a slot antenna (2) that, by means of a radiation coupling, a waveguide, or a cavity resonator, is coupled to the RF antenna (5) of the operating device (4) in order to transmit the radio signal to outside the luminaire housing (1), wherein the slot antenna (2) is located on a planar surface of the metallic luminaire housing and has a length corresponding substantially to half or a multiple of half the wavelength of the radio wave transmitted from the RF antenna, wherein the luminaire has several LED illuminants (6) in strip-shaped LED modules, and the strip-shaped LED modules and groups of aligned slots (2) are arranged alternatingly next to one another on the same side of the luminaire housing (1), wherein the luminaire has a transparent cover (3) which covers the slot and the strip-shaped LED modules. ### Claim 2 (depends on 1) The luminaire according to claim 1, wherein the cavity resonator is formed by the metallic luminaire housing (1). ### Claim 3 (depends on 1) The luminaire according to claim 1, wherein the slot antenna (2) is a slot group antenna having several slots in the planar surface of the metallic housing, where each slot has a length corresponding substantially to half or a multiple of half the wavelength of the radio wave transmitted from the RF antenna, and at least two slots aligned with respect to their main extension direction are separated by a distance greater than half the wavelength of the radio wave transmitted from the RF antenna. ### Claim 4 (depends on 3) The luminaire according to claim 3, wherein the slot group antenna is arranged on one side of the metallic luminaire housing (1) on which the at least one illuminant (6) is arranged. ### Claim 5 (depends on 3) The luminaire according to claim 3, wherein the slot of the slot antenna (2) runs in its main extension direction at least partially parallel to an edge of the luminaire. ### Claim 6 (depends on 1) The luminaire according to claim 1, wherein the operating device (4) has a housing on which is arranged the RF antenna (5) for transmitting and receiving the radio signal. ### Claim 7 (depends on 1) The luminaire according to claim 1, wherein the slot antenna (2), which is coupled to the antenna (5) of the operating device (4) by means of the radiation coupling, the waveguide, or the cavity resonator, is one of two slot antennas which are arranged on two different sides of the luminaire housing (1). ### Claim 8 (depends on 1) The luminaire according to claim 1, wherein the luminaire has several of the operating devices (4) with an RF antenna (5) and several of the slot antennas (2), and each RF antenna (5) is coupled to another slot antenna (2) by means of the radiation coupling, the waveguide, or the cavity resonator. ### Claim 9 (depends on 1) The luminaire according to claim 1, wherein a dielectric filler material is arranged in the slot of the slot antenna (2), or the dielectric material covers the slot at least on one side of the slot of the slot antenna (2). ### Claim 10 (depends on 1) The luminaire according to claim 1, wherein the slot of the slot antenna (2) does not have a rectangular shape. ### Claim 11 (depends on 10) The luminaire according to claim 10, wherein the edge is an edge of the luminaire housing (1) or an edge of a transparent cover (3) of the luminaire. ### Claim 12 (depends on 10) The luminaire according to claim 10, wherein the slot is at least part of a character applied to the luminaire. ### Claim 13 (depends on 1) The luminaire according to claim 1 wherein the RF antenna (5) in the operating device (4) also receives a receives radio signals. ### Claim 14 A luminaire, having: at least one illuminant (6), a metallic luminaire housing (1), and at least one operating device (4), arranged in the metallic luminaire housing (1), for the at least one illuminant (6), wherein the operating device (4) has an RF antenna (5) for transmitting a radio signal, and the luminaire housing (1) has at least one slot antenna (2) that, by means of a radiation coupling, a waveguide, or a cavity resonator, is coupled to the RF antenna (5) of the operating device (4) in order to transmit the radio signal to outside the luminaire housing, wherein the at least one slot antenna (2) is arranged on one side of the metallic luminaire housing (1) on which the at least one illuminant (6) is arranged, and the luminaire has a transparent cover (3) which covers the at least one slot antenna (2) and the at least one illuminant (6), wherein the luminaire has several LED illuminants (6) in strip-shaped LED modules and several slots forming a group slot antenna in the metallic housing, and further wherein groups of at least two slots are aligned with respect to their main extension direction and separated by a distance greater than half the wavelength of the radio wave transmitted from the RF antenna, and the strip-shaped LED modules and the groups of at least two aligned slots are arranged alternatingly next to one another on said one side of the metallic luminaire housing (1).