# US 10,371,337 B2 · Light-emitting apparatus and lighting apparatus for vehicles including the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,371,337 B2 - Document ID: US10371337B2 - Status: Granted - Kind: B2 - Application number: 15/376,892 - Filed: 2016-12-13 - Published: 2017-06-15 - Granted: 2019-08-06 - Earliest claimed: 2015-12-15 - Assignees: LG Innotek Co., Ltd. - Applicants: LG Innotek Co., Ltd. - Inventors: Kang Yeol Park; Ki Cheol Kim; Chang Gyun Son - Web page: https://patentgrep.com/patent/US10371337B2 ## CPC - F21S 41/16: Laser light sources - F21S 41/176: Light sources where the light is generated by photoluminescent material spaced from a primary light generating element - F21S 41/20: characterised by refractors, transparent cover plates, light guides or filters - F21S 41/25: Projection lenses - F21S 41/32: Optical layout thereof - F21S 41/33: Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature - F21S 41/365: successively reflecting the light - F21S 41/663: by switching light sources (by switching incandescent light sources F21S41/162) - F21S 45/47: Passive cooling, e.g. using fins, thermal conductive elements or openings - F21W 2102/13: for high-beam region or low-beam region - F21Y 2115/30: Semiconductor lasers - F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS - F21W: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS - 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 light-emitting apparatus includes a light source unit for emitting a first excitation light beam, a beam shape conversion unit for reflecting the first excitation light beam and outputting the reflected first excitation light beam as a second excitation light beam, and a driving unit for driving the light source unit, wherein the beam shape conversion unit includes a plurality of reflective surfaces having different reflection patterns, and the reflective surfaces are arranged in a direction that intersects the direction in which the first excitation light beam is incident. ## Claims ### Claim 1 A light-emitting apparatus comprising: a plurality of light sources to emit a plurality of first excitation light beams; a driving unit to drive the plurality of light sources; a beam shape conversion unit to reflect the plurality of first excitation light beams and provide a plurality of second excitation light beams, wherein the beam shape conversion unit includes a plurality of reflective surfaces having different patterns, wherein a first one of the reflective surfaces has a first pattern, and a first one of the first excitation light beams to reflect from the first pattern and to provide a first one of the second excitation light beams having a first shape, and a second one of the reflective surfaces has a second pattern different than the first pattern, and a second one of the first excitation beams to reflect from the second pattern and to provide a second one of the second excitation light beams having a second shape different than the first shape, and each of the reflective surfaces are arranged in a direction that intersects a direction in which the corresponding one of the first excitation light beams is incident, wherein the first one of the reflective surfaces is arranged in an incident direction of the first one of the first excitation light beams, and the second one of the reflective surfaces is arranged in an incident direction of the second one of the first excitation light beams, wherein: the plurality of light sources comprises at least a first light source, a second light source, a third light source and a fourth light source, the first light source and the fourth light source are aligned in a lateral direction perpendicular to an optical axis, the second light source and the third light source are aligned in the lateral direction, the first light source and the second light source are not aligned in a vertical direction perpendicular to the optical axis and perpendicular to the lateral direction, and the third light source and the fourth light source are not aligned in the vertical direction. ### Claim 2 (depends on 1) The light-emitting apparatus according to claim 1, further including a collimating lens provided between the at least one light source and the beam shape conversion unit. ### Claim 3 (depends on 1) The light-emitting apparatus according to claim 1, comprising a wavelength conversion unit, having a focal point, to transmit the plurality of second excitation light beams gathered on the focal point and emit the transmitted second excitation light beams as a converted light beam. ### Claim 4 (depends on 3) The light-emitting apparatus according to claim 3, further including: a base substrate having a through hole, through which the wavelength conversion unit is mounted; and a reflective material layer provided on a surface of the base substrate. ### Claim 5 (depends on 4) The light-emitting apparatus according to claim 4, further including a reflection unit provided on the base substrate to reflect the converted light beam. ### Claim 6 (depends on 5) The light-emitting apparatus according to claim 5, further including a refraction member provided between the reflection unit and the base substrate. ### Claim 7 (depends on 6) The light-emitting apparatus according to claim 6, wherein the beam shape conversion unit is spaced apart from the base substrate. ### Claim 8 (depends on 1) The light-emitting apparatus according to claim 1, wherein the driving unit includes a controller to control turning each of the plurality of light sources on or off. ### Claim 9 (depends on 8) The light-emitting apparatus according to claim 8, wherein the controller performs control such that the plurality of first excitation light beams are selectively emitted from the plurality of light sources. ### Claim 10 (depends on 1) The light-emitting apparatus according to claim 1, comprising: a light source insertion part, into which the plurality of light sources are inserted; and a connection part abutting the plurality of light sources and the light source insertion part to interconnect the light source insertion part and the plurality of light sources. ### Claim 11 (depends on 10) The light-emitting apparatus according to claim 10, comprising a heat dissipation plate abutting the connection part. ### Claim 12 A lighting module for vehicles comprising a light-emitting apparatus, the light-emitting apparatus comprising: a light source unit to emit a plurality of first excitation light beams; a beam shape conversion unit to reflect the plurality of first excitation light beams and provide a plurality of second excitation light beams; a wavelength conversion unit, having a focal point, to transmit the plurality of second excitation light beams gathered on the focal point and emit the transmitted second excitation light beams as a converted light beam; and a driver to drive the light source unit, wherein the beam shape conversion unit includes a plurality of reflective surfaces having different patterns, wherein a first one of the reflective surfaces has a first pattern, and a first one of the first excitation light beams to reflect from the first pattern and to provide a first one of the second excitation light beams having a first shape, and a second one of the reflective surfaces has a second pattern different than the first pattern, and a second one of the first excitation beams to reflect from the second pattern and to provide a second one of the second excitation light beams having a second shape different than the first shape, and each of the reflective surfaces are arranged in a direction that intersects a direction in which the corresponding one of the first excitation light beams is incident, wherein the first one of the reflective surfaces is arranged in an incident direction of the first one of the first excitation light beams, and the second one of the reflective surfaces is arranged in an incident direction of the second one of the first excitation light beams, wherein: the light source unit includes at least a first light source, a second light source, a third light source and a fourth light source, the first light source and the fourth light source are aligned in a lateral direction perpendicular to an optical axis, the second light source and the third light source are aligned in the lateral direction, the first light source and the second light source are not aligned in a vertical direction perpendicular to the optical axis and perpendicular to the lateral direction, and the third light source and the fourth light source are not aligned in the vertical direction. ### Claim 13 (depends on 12) The lighting module according to claim 12, wherein the driver includes a controller to control turning the light sources on or off. ### Claim 14 (depends on 12) The lighting module according to claim 12, wherein the light-emitting apparatus further comprises: a light source insertion part, into which the light source unit is inserted; a connection part abutting the light source unit and the light source insertion part to interconnect the light source insertion part and the light source unit; and a heat dissipation plate abutting the connection part. ### Claim 15 (depends on 12) The lighting module according to claim 12, wherein the light-emitting apparatus further includes: a base substrate having a through hole, through which the wavelength conversion unit is mounted; and a reflective material layer provided on a surface of the base substrate. ### Claim 16 (depends on 15) The lighting module according to claim 15, wherein the light-emitting apparatus further includes: a reflection unit provided on the base substrate to reflect the converted light beam emitted from the wavelength conversion unit; and a refraction member provided between the reflection unit and the base substrate. ### Claim 17 (depends on 12) The lighting module according to claim 12, wherein a beam shape of the second excitation light beam has a distribution corresponding to a low beam. ### Claim 18 (depends on 12) The lighting module according to claim 12, wherein a beam shape of the second excitation light beam has a distribution corresponding to a high beam.