Patent ID: 9726784
Date: 2017-08-08
CPC Classifications: C08K,C09B,G02B,H01L

Claim:
1. A near-infrared cut filter, comprising a resin substrate and a near infrared-reflecting film, wherein the resin substrate comprises: a resin; and a light absorber comprising a structure derived from a compound represented by Formula (II), wherein said light absorber is contained in said resin substrate in an amount of 0.001 to 0.01 parts by weight with respect to 100 parts by weight of said resin: wherein: each R each R each R wherein the near-infrared cut filter has transmittance satisfying (A) to (D): (A) in a wavelength range of 430 to 580 nm, the average transmittance measured in a direction perpendicular to a surface of said near-infrared cut filter is 80% or higher; (B) in a wavelength range of 630 to 650 nm, the average transmittance measured in the direction perpendicular to the surface of said near-infrared cut filter is 70% or higher; (C) in a wavelength range of 800 to 1,000 nm, the average transmittance measured in the direction perpendicular to the surface of said near-infrared cut filter is 20% or lower; and (D) in a wavelength range of 550 to 700 nm, an absolute value of a difference between a wavelength at which a transmittance measured in the direction perpendicular to the surface of said near-infrared cut filter is 75% and a wavelength at which a transmittance measured at an angle of 30° with respect to the direction perpendicular to the surface of said near-infrared cut filter is 75% is less than 15 nm, and wherein the near infrared-reflecting film is a dielectric multilayer film.