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Light detection unit
专利权人:
Seiko Epson Corporation
发明人:
Atsushi Matsuo
申请号:
US15112237
公开号:
US10052039B2
申请日:
2015.03.10
申请国别(地区):
US
年份:
2018
代理人:
摘要:
A light detection unit includes a light emitter that emits light toward an object of interest, a light receiver that receives light from the object of interest, and a light blocking member that performs light blocking at least above the light receiver. The light blocking member includes a first surface that is provided between the light emitter and the light receiver and prevents direct light from the light emitter from entering the light receiver and a second surface and a third surface that are provided along a direction that intersects the first surface and prevent light from entering the light receiver. Further, the first surface is made of a first material, and the second surface and the third surface are made of a second material different from the first material.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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