Invention Grant
- Patent Title: Photodetection device having a light passing part, a light guide member, and a photodetection element
- Patent Title (中): 具有光通过部分的光检测装置,导光部件和光检测元件
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Application No.: US14282982Application Date: 2014-05-20
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Publication No.: US09358919B2Publication Date: 2016-06-07
- Inventor: Tsuyoshi Higashikata , Mitsuharu Sugimoto , Takanori Kamo
- Applicant: Tsuyoshi Higashikata , Mitsuharu Sugimoto , Takanori Kamo
- Applicant Address: JP Aichi
- Assignee: OMRON AUTOMOTIVE ELECTRONICS CO., LTD.
- Current Assignee: OMRON AUTOMOTIVE ELECTRONICS CO., LTD.
- Current Assignee Address: JP Aichi
- Agency: Osha Liang LLP
- Priority: JP2013-106997 20130521; JP2014-089132 20140423
- Main IPC: G01J1/04
- IPC: G01J1/04 ; B60Q1/14 ; G01J1/02 ; G01J1/42

Abstract:
A photodetection device has a light passing part in an upper portion, a light guiding member, and a photodetection element in a lower portion. Light passing through the light passing part is guided by the light guiding member to be detected by the photodetection element. The light guiding member has an incident curved surface provided annularly around a central axis on a side of the light passing part, and a reflective curved surface provided around the central axis inside the incident curved surface so as to be opposed to the incident curved surface. The light guiding member reflects light at the reflective curved surface to guide the light to a light receiving surface of the photodetection element, the light passing through the light passing part and entering the incident curved surface at a predetermined inclination angle.
Public/Granted literature
- US20140346333A1 PHOTODETECTION DEVICE Public/Granted day:2014-11-27
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