The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 09, 2019
Filed:
Sep. 30, 2015
Agc Inc., Chiyoda-ku, JP;
Kyoko Yamamoto, Tokyo, JP;
Takaaki Murakami, Tokyo, JP;
Mitsuyuki Tatemura, Haibara-gun, JP;
Hiroshi Kumai, Tokyo, JP;
AGC Inc., Chiyoda-ku, JP;
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 Drepresented by the following expression is less than 0.04. D(%/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 Drepresented by the following expression is less than 0.04. D(%/nm)=(Tmax·30−Tmin·30)/(λ(Tmax·30)−×(Tmin·30))