# US 10,371,352 B2 · Lighting device and corresponding method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,371,352 B2 - Document ID: US10371352B2 - Status: Granted - Kind: B2 - Application number: 15/905,857 - Filed: 2018-02-27 - Published: 2018-09-06 - Granted: 2019-08-06 - Earliest claimed: 2017-03-01 - Assignees: OSRAM GmbH - Applicants: OSRAM GmbH - Inventors: Antonio Stocco; Alessio Griffoni; Lorenzo Baldo; Valerio Michielan; Luca Volpato - Web page: https://patentgrep.com/patent/US10371352B2 ## CPC - F21V 7/28: characterised by coatings - F21V 3/062: {the material being plastics} - F21V 19/0015: {Fastening arrangements intended to retain light sources} - F21V 23/06: the elements being coupling devices {, e.g. connectors} - G02B 6/0021: {for housing at least a part of the light source, e.g. by forming holes or recesses} - H01K 5/00: Lamps for general lighting (H01K9/00 - H01K13/00 take precedence) - H04B 10/116: Visible light communication - F21V 23/0442: {activated by means of a sensor, e.g. motion or photodetectors} - F21Y 2103/10: comprising a linear array of point-like light-generating elements - F21Y 2115/10: Light-emitting diodes [LED] - G02B 6/4298: {coupling with non-coherent light sources and/or radiation detectors, e.g. lamps, incandescent bulbs, scintillation chambers} - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - H01K: ELECTRIC INCANDESCENT LAMPS (details, apparatus or processes for manufacture applicable to both discharge devices and incandescent lamps H01J; light sources using a combination of incandescent and other types of light generation H01J61/96, H05B35/00) - H04B: TRANSMISSION - 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 lighting device, such as a LED module, comprising an elongated support structure having a longitudinal direction and electrically-powered light radiation sources distributed along the support structure, the support structure including at least one light-permeable layer, one or more optical signal sources coupled with the light-permeable layer, for injecting therein an optical signal propagating in the longitudinal direction, and one or more optical signal detectors coupled with the light-permeable layer, for detecting the optical signal injected by the optical signal source(s). ## Claims ### Claim 1 A lighting device comprising: an elongated support structure having a longitudinal direction and electrically-powered light radiation sources distributed along the support structure, wherein the support structure includes at least one light-permeable layer, at least one optical signal source mounted along the support structure and coupled with the at least one light-permeable layer, configured for injecting into the at least one light-permeable layer an optical signal undergoing total internal reflection propagating along the at least one light-permeable layer in said longitudinal direction, and at least one optical signal detector arranged along the support structure and coupled with the at least one light-permeable layer, configured for detecting the optical signal injected into the at least one light-permeable layer by said at least one optical signal source. ### Claim 2 (depends on 1) The lighting device of claim 1, wherein said at least one light-permeable layer includes a protection layer applied onto said electrically-powered light radiation sources. ### Claim 3 (depends on 1) The lighting device of claim 1, wherein said at least one light-permeable layer further comprises a substrate onto which said electrically-powered light radiation sources are arranged. ### Claim 4 (depends on 1) The lighting device claim 1, wherein said at least one light-permeable layer is provided with a light-reflective coating. ### Claim 5 (depends on 3) The lighting device of claim 3, wherein said substrate comprises: a first surface for mounting said electrically-powered light radiation sources, said first surface having electrically conductive formations which are at least partly light-reflective, and a second surface, opposed said first surface, having a light-reflective coating. ### Claim 6 (depends on 1) The lighting device claim 1, wherein: said electrically-powered light radiation sources emit light radiation in a first region of the electromagnetic spectrum, and said at least one optical signal source emits optical signals in a second region of the electromagnetic spectrum, said second region being different from said first region. ### Claim 7 (depends on 1) The lighting device of claim 1, further comprising a plurality of said optical signal source configured for emitting optical signals selected out of: continuous optical signals, and modulated optical signals. ### Claim 8 (depends on 1) The lighting device of claim 1, wherein: said electrically-powered light radiation sources include solid-state and/or said support structure is flexible. ### Claim 9 (depends on 7) The lighting device of claim 7, wherein the modulated optical signals have modulation characteristics different from source to source. ### Claim 10 (depends on 9) The lighting device of claim 9, wherein the sources are modulated sources. ### Claim 11 (depends on 8) The lighting device of claim 8, wherein the electrically powered light radiation sources include LED type light radiation sources. ### Claim 12 A method of providing lighting devices, the method comprising: providing an elongated support structure having a longitudinal direction and electrically-powered light radiation sources distributed along the support structure, wherein the support structure includes at least one light permeable layer, coupling with the at least one light permeable layer at least one optical signal source mounted along the support structure for injecting into the at least one light permeable layer an optical signal undergoing total internal reflection propagating along the at least one light permeable layer in said longitudinal direction, and coupling with the at least one light permeable layer at least one optical signal detector arranged along the support structure for detecting the optical signal injected into the at least one light permeable layer by said at least one optical signal source.