Eye-safe laser-based lighting

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	Eye-safe laser-based lighting
其他题名	Eye-safe laser-based lighting
	KRIJN, MARCELLINUS PETRUS CAROLUS MICHAEL; JAK, MARTIN JACOBUS JOHAN
	2015-12-31
专利权人	SIGNIFY HOLDING B.V.
公开日期	2015-12-31
授权国家	美国
专利类型	发明申请
摘要	A laser-based light source includes a laser device configured to generate laser light of a predetermined laser wavelength and emit this laser light as a laser beam. A light-conversion device is configured to convert at least part of the laser light into converted light and a laser-output sensor is configured to determine a laser-output signal proportional to the output of laser light emitted by the laser device. Further, a converted-light sensor is configured to determine a converted-light signal proportional to the output of converted light emitted by the light-conversion device. A controller is configured to receive the laser-output signal and the converted-light signal, to determine a safe-to-operate parameter, based on the laser-output signal and the converted-light signal, and to control the operation of the laser-based light source based on a comparison of the safe-to-operate parameter with a at least one predefined threshold.
其他摘要	基于激光的光源包括激光装置，该激光装置被配置为产生预定激光波长的激光并将该激光作为激光束发射。光转换装置被配置为将至少部分激光转换为转换光，并且激光输出传感器被配置为确定与激光装置发射的激光的输出成比例的激光输出信号。此外，转换光传感器被配置为确定与由光转换装置发射的转换光的输出成比例的转换光信号。控制器被配置为接收激光输出信号和转换光信号，以基于激光输出信号和转换光信号确定安全操作参数，并控制激光器的操作基于安全操作参数与至少一个预定阈值的比较的基于光源的光源。
主权项	A laser-based light source, comprising: a laser device configured to generate laser light of a predetermined laser wavelength and emit the laser light as a laser beam; a light-conversion device configured to convert at least part of the laser light into converted light; a laser-output sensor configured to determine a laser-output signal being correlated with an output of the laser light emitted by the laser device; a converted-light sensor configured to determine a converted-light signal being correlated with an output of the converted light emitted by the light-conversion device; a redirection device configured to redirect at least part of the converted light to the converted-light sensor and to redirect a portion of the laser light to the laser-output sensor; and a controller configured to receive the laser-output signal and the converted-light signal, determine a safe-to-operate parameter of the laser device based on the laser-output signal and the converted-light signal, and control operation of the laser-based light source based on a comparison between the safe-to-operate parameter and at least one predefined threshold, wherein the controller is further configured to determine the safe-to-operate parameter based on phase delay between the laser-output signal and the converted-light signal.
申请日期	2015-09-08
专利号	US20150380899A1
专利状态	申请中
申请号	US14/848306
公开（公告）号	US20150380899A1
IPC 分类号	H01S5/0683 \| F21V23/04 \| F21K99/00 \| H01S5/00 \| H01S5/068
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/181661/62058
专题	半导体激光器专利数据库
作者单位	SIGNIFY HOLDING B.V.
推荐引用方式 GB/T 7714	KRIJN, MARCELLINUS PETRUS CAROLUS MICHAEL,JAK, MARTIN JACOBUS JOHAN. Eye-safe laser-based lighting. US20150380899A1[P]. 2015-12-31.