Vehicle headlight system

OPT OpenIR > 半导体激光器专利数据库

	Vehicle headlight system
其他题名	Vehicle headlight system
	NAKAZAWA, KATSUNORI
	2016-12-01
专利权人	STANLEY ELECTRIC CO., LTD.
公开日期	2016-12-01
授权国家	美国
专利类型	发明申请
摘要	A headlight system can include a laser driving circuit to drive a laser device, a detecting circuit to detect a current of the laser device, a wavelength converting material to emit light having a white color tone associated with the laser device, a receiver circuit to detect a light-intensity of the light via a photo detector and a controller. The controller can control the laser driving circuit while watching normal/abnormal states of an optical structure of the system. Thus, the disclosed subject matter can provide the headlight system, which can provide favorable light distribution patterns by using the light, even when a battery voltage returns the laser device to the normal state after the controller outputs a turn-off signal to the laser driving circuit not to emit the laser device by detecting the abnormal state in the optical structure such as the laser device because the battery voltage largely decreases.
其他摘要	前照灯系统可以包括：激光驱动电路，用于驱动激光器件;检测电路，用于检测激光器件的电流;波长转换材料，用于发射具有与激光器件相关联的白色色调的光;接收器电路，经由光检测器和控制器的光的光强度。控制器可以在观察系统的光学结构的正常/异常状态的同时控制激光器驱动电路。因此，本公开的主题可以提供一种前照灯系统，其可以在控制器向激光器驱动器输出关断信号之后，即使电池电压使激光器装置返回到正常状态时也能够通过使用光提供有利的配光图案电路不通过检测诸如激光器装置的光学结构中的异常状态来发射激光器装置，因为电池电压大大降低。
主权项	A vehicle headlight system, comprising: a laser driving circuit configured to receive a power supply from a battery incorporated into a subject vehicle, which incorporates the vehicle headlight system, via a headlight switch; a semiconductor laser device configured to emit a laser beam by the laser driving circuit; a current detector configured to detect a current flowing from the laser driving circuit into the semiconductor laser device; a wavelength converting material configured to emit light having a substantially white color tone using the laser beam emitted from the semiconductor laser device; a light distribution adjustment configured to receive the light having the substantially white color tone from the wavelength converting material, and configured to provide light distribution patterns in a forward direction of the subject vehicle by using the light emitted from the wavelength converting material; a detecting circuit configured to input current data output from the current detector, and configured to detect the current value, which flows from the laser driving circuit into the semiconductor laser device, from the current detector; a photo detector configured to receive a part of the light, which is emitted from the wavelength converting material; a receiver circuit configured to detect a light-intensity of the part of the light, which is received by the photo detector; a controller including a threshold memory, configured to output a turn-on signal to the laser driving circuit after the controller is initialized when the headlight switch turns on, and configured to output a turn-off signal to the laser driving circuit when the light-intensity received from the receiver circuit is lower than a threshold stored at the threshold memory; a constant voltage circuit configured to apply a substantially constant voltage to the controller; and wherein the laser driving circuit is configured to emit the laser beam from the semiconductor laser device when a power supply voltage received from the battery is higher than a predetermined voltage after the laser driving circuit inputs the turn-on signal output from the controller.
申请日期	2016-05-20
专利号	US20160348865A1
专利状态	失效
申请号	US15/160770
公开（公告）号	US20160348865A1
IPC 分类号	F21S8/10 \| F21V9/16 \| H01S5/00 \| B60Q1/14 \| H01S5/042 \| H01S5/0683 \| H05B37/02 \| H05B37/03
专利代理人	-
代理机构	-
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/62140
专题	半导体激光器专利数据库
作者单位	STANLEY ELECTRIC CO., LTD.
推荐引用方式 GB/T 7714	NAKAZAWA, KATSUNORI. Vehicle headlight system. US20160348865A1[P]. 2016-12-01.