Invention Grant
- Patent Title: Optical filter having low incident angle dependence of incident light, ambient light sensor, sensor module and electronic device
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Application No.: US15779850Application Date: 2016-11-28
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Publication No.: US10996105B2Publication Date: 2021-05-04
- Inventor: Katsuya Nagaya , Toshihiro Otsuki , Daisuke Shigeoka , Takashi Tsubouchi
- Applicant: JSR CORPORATION
- Applicant Address: JP Tokyo
- Assignee: JSR CORPORATION
- Current Assignee: JSR CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: JCIPRNET
- Priority: JPJP2015-233852 20151130,JPJP2016-165192 20160825
- International Application: PCT/JP2016/085210 WO 20161128
- International Announcement: WO2017/094672 WO 20170608
- Main IPC: G01J1/04
- IPC: G01J1/04 ; G02B5/26 ; G02B5/28 ; G02B5/22 ; G01J1/02 ; H01L31/0232 ; H01L31/173 ; G01S7/481 ; G01J1/42 ; G01S17/08 ; G02B1/04 ; G02B5/20

Abstract:
One object of the present disclosure is to show an optical filter capable of realizing both an excellent visible light transmittance and an excellent near-infrared ray-shielding performance even if an incident angle becomes large. The optical filter of the present disclosure has a base material (i) including a light absorbing layer, and transmits visible light, wherein the light absorbing layer has a maximum absorption in a wavelength range of 750 nm to 1,150 nm, and in a wavelength range of 850 nm to 1,050 nm, an average OD value measured in a direction perpendicular to the optical filter is 2.0 or more, and an average OD value measured at an angle of 60° with respect to the direction perpendicular to the optical filter is 2.0 or more.
Public/Granted literature
- US20180364095A1 OPTICAL FILTER, AMBIENT LIGHT SENSOR AND SENSOR MODULE Public/Granted day:2018-12-20
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