# US 2019/0170313 A1 · Module for emitting white light with an enriched spectrum > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0170313 A1 - Document ID: US20190170313A1 - Status: Published application - Kind: A1 - Application number: 16/314,245 - Filed: 2017-06-23 - Published: 2019-06-06 - Earliest claimed: 2016-06-30 - Assignees: Valeo Vision - Applicants: Valeo Vision - Inventors: Pierre ALBOU - Web page: https://patentgrep.com/patent/US20190170313A1 ## CPC - F21S 41/153: arranged in a matrix - F21S 41/141: Light emitting diodes [LED] - F21S 41/143: the main emission direction of the LED being parallel to the optical axis of the illuminating device - F21S 41/663: by switching light sources (by switching incandescent light sources F21S41/162) - H10H 20/812: within the light-emitting regions, e.g. having quantum confinement structures - H10H 20/818: within the light-emitting regions - H10H 20/825: containing nitrogen, e.g. GaN - H10H 29/142: {Two-dimensional arrangements, e.g. asymmetric LED layout} - F21Y 2113/13: comprising an assembly of point-like light sources - F21Y 2115/10: Light-emitting diodes [LED] - F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS - H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS - 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 invention relates to a semiconductor light source comprising at least a first set of light-emitting rods having submillimetric dimensions and a second set of light-emitting rods having submillimetric dimensions, the light-emitting rods of the first set being capable of emitting in a first wavelength domain and the light-emitting rods of the second set being capable of emitting in a second wavelength domain, said second domain being different from the first domain, wherein the first set of rods and the second set of rods are intermingled. ## Claims ### Claim 1 Semiconductor light source comprising at least a first set of light-emitting rods having submillimetric dimensions and a second set of light-emitting rods having submillimetric dimensions, said light-emitting rods of the first set being capable of emitting in a first wavelength domain and said light-emitting rods of the second set being capable of emitting in a second wavelength domain, said second domain being different from the first domain, wherein the first set of rods and the second set of rods are intermingled. ### Claim 2 (depends on 1) Light source according to claim 1, further comprising a matrix comprising at least a first luminescent material, at least some of the light-emitting rods being embedded in said matrix and said first luminescent material being capable of absorbing light in an absorption spectrum comprising at least one wavelength of the first domain or the second domain, and being capable of emitting in a third wavelength domain, the third domain being different from the first domain and the second domain. ### Claim 3 (depends on 2) Light source according to claim 2, wherein the first luminescent material is a fluorescent material. ### Claim 4 (depends on 1) Light source according to claim 1, wherein the light-emitting rods of the first set and the light-emitting rods of the second set are intermingled by alternation of groups of rods of the first set and groups of rods of the second set. ### Claim 5 (depends on 4) Light source according to claim 4, wherein the light-emitting rods of each group are distributed in a single geometric pattern. ### Claim 6 (depends on 1) Light source according to claim 1, wherein the light-emitting rods of the first set and the light-emitting rods of the second set are intermingled in a random manner. ### Claim 7 (depends on 4) Light source according to claim 4, wherein two consecutive rods in a given direction of the same set, separated by at least one light-emitting rod of the other set, are separated by a distance of less than 100 micrometres. ### Claim 8 (depends on 7) Light source according to claim 7, wherein the groups of light-emitting rods of the first set and the second set alternate with an interval of less than 100 micrometres. ### Claim 9 (depends on 1) Light source according to claim 1, wherein the first wavelength domain comprises a wavelength of 445 nanometres, and wherein the second wavelength domain comprises a wavelength of 467 nm. ### Claim 10 (depends on 2) Light source according to claim 2, wherein the first wavelength domain comprises a wavelength of 445 nm, and wherein the second wavelength domain comprises a wavelength of 600 nm or more. ### Claim 11 (depends on 10) Light source according to claim 10, wherein the first luminescent material comprises a cerium-YAG luminophore having an emission domain comprising at least one wavelength in the range from 573 nm to 584 nm. ### Claim 12 (depends on 11) Light source according to claim 11, further comprising a third set of light-emitting rods capable of emitting in a third wavelength domain, the third wavelength domain comprising a wavelength of 467 nm. ### Claim 13 (depends on 2) Light source according to claim 2, wherein the first wavelength domain comprises a wavelength of 445 nanometres, and wherein the second wavelength domain comprises a wavelength in the range from 573 to 584 nm; wherein the matrix further comprises a second luminescent material being capable of absorbing light in an absorption spectrum comprising at least one wavelength of the first domain or the second domain, and capable of emitting light in a fourth wavelength domain comprising a wavelength of 465 nm. ### Claim 14 (depends on 1) Light-emitting module for a motor vehicle, comprising a light source according to claim 1. ### Claim 15 (depends on 14) Light-emitting module according to claim 14, further comprising a first voltage generator capable of supplying the first set of light-emitting rods and a second voltage generator capable of supplying the second set of light-emitting rods. ### Claim 16 (depends on 5, 6, 14) Light-emitting module according to claim 14, comprising a light source according to one of claims 5 and 6, and further comprising a voltage generator, wherein j groups of the first set are placed in series and supplied in parallel with k groups of the second set, j and k being defined in such a way that the product of j and the nominal voltage of a group of the first set is substantially equal to the product of k and the nominal voltage of a group of the second set. ### Claim 17 (depends on 15) Light-emitting module according to claim 15, further comprising a shaping optic capable of receiving the light emerging from the light source and shaping a light beam. ### Claim 18 (depends on 14) Light-emitting device, comprising at least a lighting module according to claim 14 in such a way as to form at least a part of a light beam. ### Claim 19 (depends on 18) Light-emitting device according to claim 18, further comprising a casing and a sealing lens interacting with one another to delimit an interior cavity comprising the light-emitting module. ### Claim 20 Method of manufacturing a semiconductor light source, said method comprising the following steps: growing, on a substrate, a first set of light-emitting rods having submillimetric dimensions, capable of emitting in a first wavelength domain; growing, on said substrate, a second set of light-emitting rods having submillimetric dimensions, capable of emitting in a second wavelength domain, said second domain being different from the first domain, wherein the first set of rods and the second set of rods are intermingled.