Invention Grant
- Patent Title: Filter for light receiving element, and light receiving device
- Patent Title (中): 光接收元件的滤光片和光接收装置
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Application No.: US13228793Application Date: 2011-09-09
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Publication No.: US08369007B2Publication Date: 2013-02-05
- Inventor: Yasuaki Inoue
- Applicant: Yasuaki Inoue
- Applicant Address: JP Osaka
- Assignee: Nalux Co., Ltd.
- Current Assignee: Nalux Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: Squire Sanders (US) LLP
- Priority: JP2009-061857 20090313
- Main IPC: G06K7/10
- IPC: G06K7/10
Abstract:
A filter for a light receiving element, which can sufficiently eliminate disturbance due to sunlight and the like out of doors. The filter for a light receiving element according to one embodiment of the present invention is used for a light receiving element which receives signal light having a known spectral distribution. The filter for a light receiving element according to one embodiment of the present invention is configured so that when the energy density of the ambient light in the light receiving element is represented by N1 and the energy density of the signal light in the light receiving element is represented by N2, N1/(N2)2 is minimized under constraints.
Public/Granted literature
- US20120019904A1 FILTER FOR LIGHT RECEIVING ELEMENT, AND LIGHT RECEIVING DEVICE Public/Granted day:2012-01-26
Information query
