# US 10,767,828 B2 · Vehicular headlamp > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,767,828 B2 - Document ID: US10767828B2 - Status: Granted - Kind: B2 - Application number: 16/235,255 - Filed: 2018-12-28 - Published: 2019-07-04 - Granted: 2020-09-08 - Earliest claimed: 2017-12-28 - Assignees: Stanley Electric Co., Ltd. - Applicants: Stanley Electric Co., Ltd. - Inventors: Shota Nishimura; Kazuma Kamioka - Web page: https://patentgrep.com/patent/US10767828B2 ## CPC - F21S 41/663: by switching light sources (by switching incandescent light sources F21S41/162) - B60Q 1/143: {combined with another condition, e.g. using vehicle recognition from camera images or activation of wipers} - F21S 41/143: the main emission direction of the LED being parallel to the optical axis of the illuminating device - F21S 41/25: Projection lenses - F21S 41/26: Elongated lenses - F21S 41/27: Thick lenses - F21S 41/275: Lens surfaces, e.g. coatings or surface structures - F21S 43/26: {Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255} - B60Q 1/04: the devices being headlights - B60Q 2300/21: Manual control - B60Q 2400/40: Welcome lights, i.e. specific or existing exterior lamps to assist leaving or approaching the vehicle - B60Q 2900/30: Lamps commanded by wireless transmissions - B60Q 2900/40: Several lamps activated in sequence, e.g. sweep effect, progressive activation - B60R 25/1003: {Alarm systems characterised by arm or disarm features} - F21S 41/141: Light emitting diodes [LED] - F21S 41/16: Laser light sources - 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 - B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR ## Abstract A vehicular headlamp comprising: a front lens body extending in a predetermined direction; a plurality of optical systems disposed along the predetermined direction behind the front lens body; and a control means, wherein the plurality of optical systems each includes: a rear lens unit disposed behind the front lens body; and a light source which is disposed behind the rear lens unit and emits light which is irradiated forward permeating the rear lens unit and the front lens body in that order to form a light distribution pattern for a headlamp, and the control means individually controls lighting states of the light sources in each of the plurality of optical systems. ## Claims ### Claim 1 A vehicular headlamp comprising: a front lens body extending in a predetermined direction; a plurality of optical systems disposed along the predetermined direction behind the front lens body; and a control means, wherein the plurality of optical systems each includes: a rear lens unit disposed behind the front lens body; and a light source which is disposed behind the rear lens unit and emits light which is irradiated forward permeating the rear lens unit and the front lens body in that order to form a light distribution pattern for a headlamp, and the control means individually controls lighting states of the light sources in each of the plurality of optical systems. ### Claim 2 (depends on 1) The vehicular headlamp according to claim 1, wherein the rear lens unit is a lens unit configured to condense, in a first direction, light from the light source which permeates the rear lens unit, and the front lens body is a lens unit configured to condense, in a second direction orthogonal to the first direction, light from the rear lens unit which permeates the front lens body. ### Claim 3 (depends on 1) The vehicular headlamp according to claim 1, further comprising: a detection means which detects a predetermined state, wherein the control means individually controls the lighting states of the light sources in each of the plurality of optical systems, when the detection means detects the predetermined state. ### Claim 4 (depends on 3) The vehicular headlamp according to claim 3, wherein in the case of forming the light distribution pattern, the control means controls the lighting states of the light sources in each of the plurality of optical systems at a first power and, when the detection means detects the predetermined state, the control means individually controls the lighting states of the light sources in each of the plurality of optical systems at a second power lower than the first power. ### Claim 5 (depends on 3) The vehicular headlamp according to claim 3, wherein the predetermined state is reception of a locking signal for locking a vehicle door, or an unlocking signal for unlocking a vehicle door. ### Claim 6 (depends on 3) The vehicular headlamp according to claim 3, wherein the control means individually controls the lighting states of the light sources in each of the plurality of optical systems according to a predetermined lighting pattern, when the detection means detects the predetermined state. ### Claim 7 (depends on 6) The vehicular headlamp according to claim 6, wherein the lighting pattern is a sequential lighting pattern. ### Claim 8 (depends on 4) The vehicular headlamp according to claim 4, wherein the plurality of optical systems includes an ADB optical system, the ADB optical system includes: an ADB rear lens unit disposed behind the front lens body; and N number of ADB light sources which are disposed behind the ADB rear lens body and each emits light which is irradiated forward permeating the ADB rear lens unit and the front lens body in that order to form a light distribution pattern for ADB, and the control means individually controls each of the N number of ADB light sources at a power which is 1/N of the second power, when the detection means detects the predetermined state. ### Claim 9 (depends on 1) The vehicular headlamp according to claim 1, wherein the front lens body includes: a light incident surface extending in the predetermined direction and a light exiting surface extending in the predetermined direction on a side opposite to the light incident surface; and the light incident surface is a surface at which light from the plurality of optical systems enters the front lens body, and the light exiting surface is a surface at which light from the plurality of optical systems which has entered from the light incident surface exits, and at least one of the light incident surface and the light exiting surface is a cylindrical surface in which a cylindrical axis extends in the predetermined direction. ### Claim 10 (depends on 1) The vehicular headlamp according to claim 1, wherein the plurality of optical systems includes at least one of a low beam optical system, a high beam optical system and an ADB optical system, the low beam optical system includes a low beam rear lens unit disposed behind the front lens body and a low beam light source which is disposed behind the low beam rear lens unit and emits light which is irradiated forward permeating the low beam rear lens unit and the front lens body in that order to form a light distribution pattern for low beam, the high beam optical system includes a high beam rear lens unit disposed behind the front lens body and a high beam light source which is disposed behind the high beam rear lens unit and emits light which is irradiated forward permeating the high beam rear lens unit and the front lens body in that order to form a light distribution pattern for high beam, and the ADB optical system includes an ADB rear lens unit disposed behind the front lens body and a plurality of ADB light source which is disposed behind the ADB rear lens body and emits light which is irradiated forward permeating the ADB rear lens unit and the front lens body in that order to form a light distribution pattern for ADB. ### Claim 11 (depends on 3) The vehicular headlamp according to claim 3, wherein the plurality of optical systems includes a plurality of low beam optical systems each including a low beam rear lens unit disposed behind the front lens body and a low beam light source which is disposed behind the low beam rear lens unit and emits light which is irradiated forward permeating the low beam rear lens unit and the front lens body in that order to form a light distribution pattern for low beam, and the control means performs control at a certain timing so as to turn on at least some of the low beam light sources among the plurality of low beam light sources which make up the plurality of low beam optical systems and turn off the remainder of the low beam light sources, when the detection means detects the predetermined state. ### Claim 12 A vehicular lamp system comprising: a vehicular headlamp; a vehicular lamp; and a control means, wherein the vehicular headlamp includes: a front lens body extending in a predetermined direction; and a plurality of optical systems disposed along the predetermined direction behind the front lens body, wherein the plurality of optical systems each includes: a rear lens unit disposed behind the front lens body; and a light source which is disposed behind the rear lens unit and emits light which is irradiated forward permeating the rear lens unit and the front lens body in that order to form a light distribution pattern for a headlamp, and the control means individually controls lighting states of the light sources in each of the plurality of optical systems and lighting states of a light sources of the vehicular lamp.