Invention Grant
- Patent Title: Optical filter and device using the same
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Application No.: US15620218Application Date: 2017-06-12
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Publication No.: US10605969B2Publication Date: 2020-03-31
- Inventor: So Ishido , Atsushi Koyanagi
- Applicant: AGC Inc.
- Applicant Address: JP Chiyoda-ku
- Assignee: AGC Inc.
- Current Assignee: AGC Inc.
- Current Assignee Address: JP Chiyoda-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2014-257822 20141219; JP2015-131594 20150630
- Main IPC: G02B1/14
- IPC: G02B1/14 ; G02B5/20 ; G02B5/28 ; C09B57/00 ; H04N5/33 ; G01J1/04 ; G02B5/22 ; C09B67/44 ; C09B67/46 ; C09B67/22

Abstract:
An optical filter is provided with a structure that contains a green coloring matter and a black coloring matter and satisfies the following requirements (i) and (ii). Further a device is provided with such an optical filter. (i) An average transmittance of light in the wavelength range of 400 to 730 nm is 2% or less. (ii) A continuous 50 nm wavelength range where an average transmittance is 80% or more exists in the wavelength range of 800 to 1000 nm.
Public/Granted literature
- US20170276846A1 OPTICAL FILTER AND DEVICE USING THE SAME Public/Granted day:2017-09-28
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