Invention Grant
- Patent Title: Infrared cut filter, solid-state imaging device, and imaging/display apparatus
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Application No.: US14870751Application Date: 2015-09-30
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Publication No.: US10345498B2Publication Date: 2019-07-09
- Inventor: Kyoko Yamamoto , Takaaki Murakami , Mitsuyuki Tatemura , Hiroshi Kumai
- 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: JP2013-082509 20130410
- Main IPC: G02B5/20
- IPC: G02B5/20 ; C09B57/10 ; G02B5/22 ; C09B49/12 ; G03B11/00

Abstract:
Provided is an infrared cut filter including: an infrared absorbing layer of a transparent resin containing an infrared absorber; and a selected wavelength cut layer stacked on the infrared absorbing layer, wherein the following requirements are satisfied. (i) In a spectral transmittance curve for an incident angle of 0°, an average transmittance in a 450-600 nm range is 80% or more, a transmittance in a 700-1200 nm range is 2.0% or less, and D0 represented by the following expression is less than 0.04. D0 (%/nm)=(Tmax·0−Tmin·0)/(λ(Tmax·0)−λ(Tmin·0)) (ii) wherein a spectrum transmittance curve for an incident angle of 30°, an average transmittance in the 450 to 600 nm range is 80% or more, a transmittance in the 700-1200 nm range is 2.0% or less, and D30 represented by the following expression is less than 0.04. D30 (%/nm)=(Tmax·30−Tmin·30)/(λ(Tmax·30)−×(Tmin·30))
Public/Granted literature
- US20160018576A1 INFRARED CUT FILTER, SOLID-STATE IMAGING DEVICE, AND IMAGING/DISPLAY APPARATUS Public/Granted day:2016-01-21
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