Optical Power Sensing Devices and Methods

OPT OpenIR > 半导体激光器专利数据库

	Optical Power Sensing Devices and Methods
其他题名	Optical Power Sensing Devices and Methods
	SARACCO, MATTHIEU; NOTHERN, III, ALGA LLOYD; BYEMAN, THOMAS
	2019-08-15
专利权人	MICROVISION, INC.
公开日期	2019-08-15
授权国家	美国
专利类型	发明申请
摘要	Devices and methods are described herein to measure optical power in scanning laser projectors. In general, the devices and methods utilize a polarizing component and photodiode to measure optical power being generated by at least one laser light source. The polarizing component is configured to polarize at least a portion of the laser beam in a way that improves the accuracy and consistency of this optical power measurement. Specifically, the polarizing component filters at least a portion of the laser beam for one polarization state in a way that facilitates improved reliability in the amount of laser light directed into the photodiode
其他摘要	本文描述了用于测量扫描激光投影仪中的光功率的装置和方法。通常，该装置和方法利用偏振部件和光电二极管来测量由至少一个激光光源产生的光功率。偏振组件被配置为以改善该光功率测量的准确度和一致性的方式使至少一部分激光束偏振。具体地，偏振分量以一种有利于提高引入光电二极管的激光量的可靠性的方式过滤用于一种偏振态的激光束的至少一部分。
主权项	A scanning laser device, comprising: at least one source of laser light, the at least one source of laser light configured to generate a laser beam; a beam splitter configured to receive the laser beam and split the laser beam into a first portion and a second portion; a polarizing component configured to filter the first portion of the laser beam for one polarization state; a photodiode configured to receive the filtered first portion of the laser beam; and at least one scanning mirror configured to reflect the second portion of the laser beam into a pattern.
申请日期	2018-02-12
专利号	US20190253678A1
专利状态	申请中
申请号	US15/894582
公开（公告）号	US20190253678A1
IPC 分类号	H04N9/31 \| G02B27/14 \| G02B5/30 \| G02B26/10 \| G02B26/08 \| G02B27/10 \| G01J1/42
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/181661/62578
专题	半导体激光器专利数据库
作者单位	MICROVISION, INC.
推荐引用方式 GB/T 7714	SARACCO, MATTHIEU,NOTHERN, III, ALGA LLOYD,BYEMAN, THOMAS. Optical Power Sensing Devices and Methods. US20190253678A1[P]. 2019-08-15.