# US 10,118,535 B2 · Headlamp for vehicle and vehicle 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 10,118,535 B2 - Document ID: US10118535B2 - Status: Granted - Kind: B2 - Application number: 15/730,931 - Filed: 2017-10-12 - Published: 2018-02-01 - Granted: 2018-11-06 - Earliest claimed: 2015-09-04 - Assignees: LG Electronics Inc. - Applicants: LG Electronics Inc. - Inventors: Jun Park; Byungwoo Jeoung - Web page: https://patentgrep.com/patent/US10118535B2 ## CPC - F21S 41/141: Light emitting diodes [LED] - B60Q 1/0023: {the element being a sensor, e.g. distance sensor, camera} - B60Q 1/085: {due to special conditions, e.g. adverse weather, type of road, badly illuminated road signs or potential dangers (B60Q1/10, B60Q1/12, B60Q1/1423 take precedence)} - 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 41/18: {Combination of light sources of different types or shapes} - F21S 41/255: Lenses with a front view of circular or truncated circular outline - F21S 41/265: Composite lenses; Lenses with a patch-like shape - F21S 41/285: {Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805} - F21S 41/365: successively reflecting the light - F21S 41/675: by moving reflectors - G02B 26/0833: {the reflecting element being a micromechanical device, e.g. a MEMS mirror, DMD (G02B26/0825 takes precedence; micromechanical devices in general B81B)} - G06V 20/56: exterior to a vehicle by using sensors mounted on the vehicle - B60Q 2300/42: oncoming vehicle - B60R 2300/8086: for vehicle path indication - F21Y 2115/30: Semiconductor lasers - F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS - B60Q: ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING - B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR - 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 headlamp includes a light-emitting module that includes a condenser lens that defines an optical axis through a center of the condenser lens and that is configured to focus light incident on a rear surface of the condenser lens. The light-emitting module further includes a laser light source that is located behind the condenser lens and that is configured to generate light toward the condenser lens. The light-emitting module further includes a microelectromechanical system (MEMS) scanner that is located in front of the condenser lens, that is configured to reflect, toward the condenser lens, light generated by the laser light source, and that is configured to scan light generated by the laser light source by moving horizontally and vertically. The light-emitting module further includes a reflection unit that is located behind the condenser lens and that is configured to reflect light reflected by the MEMS scanner. ## Claims ### Claim 1 A headlamp for vehicles, the headlamp comprising a light-emitting module comprising: a condenser lens that is configured to focus light incident from a rear end of an optical axis, onto a space of a front end of the optical axis; a laser light source that is located at a rear of the condenser lens and that is configured to provide light toward the condenser lens; and a microelectromechanical system (MEMS) scanner that is located in front of the condenser lens and that is configured to reflect light toward the condenser lens by scanning the light from the laser light source in a horizontal direction and a vertical direction. ### Claim 2 (depends on 1) The headlamp according to claim 1, further comprising: an interface unit that is configured to generate oncoming vehicle detection information based on detecting an oncoming vehicle driving in an opposite lane; and a processor that is configured to generate, based on the oncoming vehicle detection information, a control signal for switching the laser light source on and off. ### Claim 3 (depends on 2) The headlamp according to claim 2, wherein the oncoming vehicle detection information is generated by a driver assistance apparatus comprising a camera and is based on a vehicle front image or a vehicle peripheral image obtained by the camera. ### Claim 4 (depends on 1) The headlamp according to claim 1, wherein the light-emitting module further comprises a light source driving unit that is configured to control switching of the laser light source on and off based on a control signal. ### Claim 5 (depends on 1) The headlamp according to claim 1, wherein the light-emitting module further comprises a scanner driving unit that is configured to control a horizontal direction scanning operation and a vertical direction scanning operation of the MEMS scanner. ### Claim 6 (depends on 5) The headlamp according to claim 5, wherein the scanner driving unit is configured to activate the horizontal direction scanning operation in response to a sinusoidal waveform, and activate the vertical direction scanning operation in response to a sawtooth waveform. ### Claim 7 (depends on 1) The headlamp according to claim 1, wherein the light from the laser light source is incident in parallel to a central axis of the condenser lens. ### Claim 8 (depends on 1) The headlamp according to claim 1, wherein the condenser lens is an aspherical lens. ### Claim 9 (depends on 8) The headlamp according to claim 8, wherein the aspherical lens comprises: a rear surface that is perpendicular to a central axis of the condenser lens; and a front surface that is convex toward a front side of the condenser lens. ### Claim 10 (depends on 1) The headlamp according to claim 1, wherein the light-emitting module further comprises a reflection unit that is located at the rear of the condenser lens and that is configured to reflect light toward the condenser lens by reflecting light reflected by the MEMS scanner. ### Claim 11 (depends on 10) The headlamp according to claim 10, wherein the light-emitting module further comprises an auxiliary condenser lens that is configured to focus light reflected by the reflection unit and having passed through the condenser lens, in a forward direction. ### Claim 12 (depends on 10) The headlamp according to claim 10, wherein the laser light source and the reflection unit are located eccentrically from a central axis of the condenser lens. ### Claim 13 (depends on 12) The headlamp according to claim 12, wherein: the laser light source is separated from the central axis of the condenser lens in a first direction that is perpendicular to the central axis of the condenser lens, and the reflection unit is separated from the central axis of the condenser lens in a second direction that is opposite to the first direction. ### Claim 14 (depends on 10) The headlamp according to claim 10, wherein the reflection unit is separated from a central axis of the condenser lens in a first direction. ### Claim 15 (depends on 10) The headlamp according to claim 10, wherein the laser light source and the reflection unit face each other and are located on a central axis of the condenser lens. ### Claim 16 (depends on 10) The headlamp according to claim 10, wherein: the condenser lens is divided into a first area and a second area by a central axis of the condenser lens intersecting a cross section of the condenser lens, light from the laser light source is incident on the first area, light reflected by the MEMS scanner is incident on the second area, and light reflected by the reflection unit is incident on the second area. ### Claim 17 (depends on 10) The headlamp according to claim 10, wherein the reflection unit modifies a wavelength of light reflected by the MEMS scanner to match a wavelength of light reflected by the reflection unit. ### Claim 18 (depends on 17) The headlamp according to claim 17, wherein the reflection unit comprises: a wavelength conversion layer that is configured to modify a wavelength of incident light; and a reflection layer that is configured to reflect incident light. ### Claim 19 (depends on 1) A vehicle comprising the headlamp according to claim 1.