Combined laser transmitter and photodetector receiver package

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	Combined laser transmitter and photodetector receiver package
其他题名	Combined laser transmitter and photodetector receiver package
	AIZPURU, JOSE JOAQUIN
	2010-01-26
专利权人	FINISAR CORPORATION
公开日期	2010-01-26
授权国家	美国
专利类型	授权发明
摘要	Reflective optical sensors. A reflective optical sensor for sensing the presence of an object can include a reflective sensor package having a first cavity and a second cavity. The first and second cavities can be located side-by-side in the sensor package. A vertical cavity surface emitting laser (VCSEL) can be located within the first cavity for producing an optical emission. An optical receiver can be located within the second cavity and configured to receive at least a portion of the produced optical emission that is reflected from the object such that when the reflected emission is above a threshold strength the object is determined to be present. The optical receiver can be a shunt phototransistor and can include reverse bias protection.
其他摘要	反射光学传感器。用于感测物体的存在的反射光学传感器可包括具有第一腔和第二腔的反射传感器封装。第一腔和第二腔可以并排设置在传感器封装中。垂直腔表面发射激光器（VCSEL）可位于第一腔内以产生光发射。光学接收器可以位于第二腔体内并且被配置为接收从物体反射的所产生的光学发射的至少一部分，使得当反射发射高于阈值强度时，确定物体存在。光接收器可以是分流光电晶体管并且可以包括反向偏置保护。
主权项	A reflective optical sensor for sensing the presence of an object comprising:a reflective sensor package made of a resilient plastic material comprising: a first cavity including two opposing outwardly sloped sidewalls; and a second cavity including two opposing outwardly sloped sidewalls, the second cavity located next to the first cavity in the sensor package such that a physical barrier is disposed between the first and second cavities, wherein the physical barrier becomes gradually thinner between the openings of the first and second cavities toward the openings of the first and second cavities due to the outwardly sloped sidewalls of the first and second cavities, wherein the first and second cavities are only partially filled with an at least partially transparent resin; a VCSEL located within the first cavity for producing an optical emission;a shunt phototransistor including reverse bias protection located within the second cavity configured to receive at least a portion of the produced optical emission reflected off of the object, the shunt phototransistor including reverse bias protection comprising: an emitter; a collector; a base; a diode including an anode and a cathode, the anode being electrically coupled with the base, and the cathode being electrically coupled with the collector; a shunt internal resistor electrically coupled between the anode and the emitter creating a PN junction relationship, the PN junction relationship being disposed in parallel electrical relationship with the diode and the first resistor; and a reverse bias protection internal resistor coupled in electrical communication between the first resistor and the emitter.
申请日期	2005-04-08
专利号	US7652244
专利状态	授权
申请号	US11/101884
公开（公告）号	US7652244
IPC 分类号	G06M7/00 \| G01N21/86 \| H01J40/14 \| H01L27/15 \| H01L31/00
专利代理人	-
代理机构	WORKMAN NYDEGGER
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/46397
专题	半导体激光器专利数据库
作者单位	FINISAR CORPORATION
推荐引用方式 GB/T 7714	AIZPURU, JOSE JOAQUIN. Combined laser transmitter and photodetector receiver package. US7652244[P]. 2010-01-26.

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