# US 2021/0278055 A1 · Micro-optic for micro-led projection unit > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0278055 A1 - Document ID: US20210278055A1 - Status: Published application - Kind: A1 - Application number: 17/193,783 - Filed: 2021-03-05 - Published: 2021-09-09 - Earliest claimed: 2020-03-05 - Assignees: Lumileds Holding B.V. - Applicants: Lumileds Holding B.V. - Inventors: Benno SPINGER; Steffen ZOZGORNIK - Web page: https://patentgrep.com/patent/US20210278055A1 ## CPC - F21S 41/275: Lens surfaces, e.g. coatings or surface structures - G02B 19/0066: {in the form of an LED array} - F21S 41/143: the main emission direction of the LED being parallel to the optical axis of the illuminating device - F21S 41/153: arranged in a matrix - F21S 41/20: characterised by refractors, transparent cover plates, light guides or filters - F21S 41/255: Lenses with a front view of circular or truncated circular outline - F21S 41/663: by switching light sources (by switching incandescent light sources F21S41/162) - G02B 19/0014: {at least one surface having optical power} - G02B 27/1066: {for enhancing image performance, like resolution, pixel numbers, dual magnifications or dynamic range, by tiling, slicing or overlapping fields of view} - G02B 27/30: Collimators - F21Y 2115/10: Light-emitting diodes [LED] - G02B 3/0056: {arranged along two different directions in a plane, e.g. honeycomb arrangement of lenses (G02B3/0043 takes precedence; miniaturised objectives for electronic devices employing wafer level optics G02B13/0085)} - F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - 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 is described. The lighting device includes at least one first arrangement of light emitting elements and at least one second arrangement of light emitting elements spatially separated from the at least one first arrangement of light emitting elements. The lighting device also includes at least one first magnifying optical element arranged in correspondence with the at least one first arrangement of light emitting elements and at least one second magnifying optical element arranged in correspondence with the at least one second arrangement of light emitting elements. At least one optical projection element is arranged and configured to generate a combined image of a magnified image of the at least one first arrangement of light emitting elements and a magnified image of the at least one second arrangement of light emitting elements. ## Claims ### Claim 1 A lighting device comprising: at least one first arrangement of light emitting elements; at least one second arrangement of light emitting elements spatially separated from the at least one first arrangement of light emitting elements; at least one first magnifying optical element arranged in correspondence with the at least one first arrangement of light emitting elements; at least one second magnifying optical element arranged in correspondence with the at least one second arrangement of light emitting elements; and at least one optical projection element arranged and configured to generate a combined image of a magnified image of the at least one first arrangement of light emitting elements and a magnified image of the at least one second arrangement of light emitting elements. ### Claim 2 (depends on 1) The lighting device of claim 1, wherein the at least one first magnifying optical element is arranged and configured to generate the magnified image of the at least one first arrangement) of light emitting elements, and wherein the at least one second magnifying optical element is arranged and configured to generate a magnified image of the at least one second arrangement (10) of light emitting elements. ### Claim 3 (depends on 1) The lighting device according to claim 1, further comprising: at least one first arrangement of optical collimation elements, each of the optical collimation elements of the at least one first arrangement of optical collimation elements is arranged in correspondence with a corresponding on of the light emitting elements of the at least one first arrangement of light emitting elements; and at least one second arrangement of optical collimation elements, wherein each of the optical collimation elements of the at least one second arrangement of optical collimation elements is arranged in correspondence with a corresponding one of the light emitting elements of the at least one second arrangement of light emitting elements. ### Claim 4 (depends on 3) The lighting device according to claim 3, wherein each of the optical collimation elements of the at least one first arrangement of optical collimation elements and the at one second arrangement of optical collimation elements comprises a lens element arranged to collimate light emitted from the corresponding one of the light emitting elements. ### Claim 5 (depends on 3) The lighting device according to claim 3, wherein the at least one first magnifying optical element, the at least one second magnifying optical element and the optical collimation elements of the at least one first arrangement of optical collimation elements and the at one second arrangement of optical collimation elements are integrally formed. ### Claim 6 (depends on 3) The lighting device according to claim 3, further comprising an optical member arranged in a path of light emitted from light emitting elements of the first and the second arrangement of light emitting elements, the first magnifying optical element and the second magnifying optical element forming a face of the optical member facing away from the first and the second arrangement of light emitting elements, and the at least one first arrangement of optical collimation elements and the at least one second arrangement of optical collimation elements forming a face of the optical member facing the first and the second arrangement of light emitting elements. ### Claim 7 (depends on 3) The lighting device according to claim 3, wherein the light emitting elements respectively correspond to micro-LEDs, and wherein the at least one first arrangement of optical collimation elements and the at least one second arrangement of optical collimation elements respectively correspond to respective arrangements of micro-lenses. ### Claim 8 (depends on 1) The lighting device according to claim 1, wherein at least one of the at least one first magnifying optical element, the at least one second magnifying optical element, at least one of the optical collimation elements, or the optical member comprises glass or silicone. ### Claim 9 (depends on 1) The lighting device according to claim 1, wherein the at least one second arrangement of light emitting elements is spatially separated from the at least one first arrangement of light emitting elements by a gap having a width that is larger than a width of a gap separating a first light emitting element of the at least one first arrangement. ### Claim 10 (depends on 1) The lighting device according to claim 1, wherein the at least one second arrangement of light emitting elements is spatially separated from the at least one first arrangement of light emitting elements by a gap having a width that is larger than a width of a gap separating the at least one second arrangement from a second light emitting element of the at least one first arrangement. ### Claim 11 (depends on 1) The lighting device according to claim 1, wherein the at least one second arrangement of light emitting elements is spatially separated from the at least one first arrangement of light emitting elements by a gap having a width that is larger than a width of a gap separating the at least one second arrangement arranged adjacent to the first light emitting element. ### Claim 12 (depends on 1) The lighting device according to claim 1, wherein the light emitting elements of at least one of the at least one first arrangement of light emitting elements or the at least one second arrangement of light emitting elements are configured to be at least one of individually addressable or addressable in groups. ### Claim 13 (depends on 1) The lighting device according to claim 1, wherein at least one of the at least one first arrangement of light emitting elements or the at least one second arrangement of light emitting elements is a matrix arrangement of the light emitting elements. ### Claim 14 (depends on 1) The lighting device according to claim 1, wherein a focus of the at least one optical projection element is in a plane defined by at least one of the at least one first arrangement of light emitting elements or the at least one second arrangement of light emitting elements. ### Claim 15 (depends on 1) The lighting device according to claim 1, wherein the at least one optical projection element comprises a single lens or a lens system arranged to collect light emitted from all of the light emitting elements of the at least one first and the at least one second arrangement of light emitting elements. ### Claim 16 (depends on 1) The lighting device according to claim 1, wherein the light emitting elements are light emitting diodes (LEDs). ### Claim 17 A lighting system comprising: a lighting device comprising: at least one first arrangement of light emitting elements, at least one second arrangement of light emitting elements spatially separated from the at least one first arrangement of light emitting elements, at least one first magnifying optical element arranged in correspondence with the at least one first arrangement of light emitting elements, at least one second magnifying optical element arranged in correspondence with the at least one second arrangement of light emitting elements, and at least one optical projection element arranged and configured to generate a combined image of a magnified image of the at least one first arrangement of light emitting elements and a magnified image of the at least one second arrangement of light emitting elements; and a controller configured to individually control at least one of the light emitting elements of the at least one first arrangement or the lighting elements of the at least one second arrangement of light emitting elements. ### Claim 18 (depends on 17) The lighting system according to claim 17, wherein the lighting system is an automotive headlight system. ### Claim 19 (depends on 17) The lighting system according to claim 17, wherein the at least one first magnifying optical element is arranged and configured to generate the magnified image of the at least one first arrangement) of light emitting elements, and wherein the at least one second magnifying optical element is arranged and configured to generate a magnified image of the at least one second arrangement (10) of light emitting elements. ### Claim 20 (depends on 17) The lighting system according to claim 17, wherein the lighting device further comprises: at least one first arrangement of optical collimation elements, each of the optical collimation elements of the at least one first arrangement of optical collimation elements is arranged in correspondence with a corresponding on of the light emitting elements of the at least one first arrangement of light emitting elements, and at least one second arrangement of optical collimation elements, wherein each of the optical collimation elements of the at least one second arrangement of optical collimation elements is arranged in correspondence with a corresponding one of the light emitting elements of the at least one second arrangement of light emitting elements.