Infrared cut filter, solid-state imaging device, and imaging/display apparatus

An infrared cut filter comprising:

• an infrared absorbing layer of a transparent resin comprising an infrared absorber;
• and
• a selected wavelength cut layer stacked on the infrared absorbing layer;
• wherein:
• (i) in a spectral transmittance curve for an incident angle of “0” (zero) degree, the infrared cut filter has:
• an average transmittance of 80% or more at wavelengths in a range of 450 to 600 nm;
• a transmittance of 2% or less at all wavelengths in a range of 700 to 1200 nm;
• and
• a transmittance variation D0 represented by the following expression (1) of less than 0.04:
• D0(%/nm)=(Tmax·0−Tmin·0)/(λ(Tmax·0)−λ(Tmin·0)) (1)
• wherein Tmax·0 and Tmin·0 are respectively a maximum transmittance and a minimum transmittance at wavelengths in a range of 1100 to 1250 nm, λ(Tmax·0) is a wavelength having the maximum transmittance Tmax·0, and λ(Tmin·0) is a wavelength having the minimum transmittance Tmin·0;
• and
• (ii) in a spectrum transmittance curve for an incident angle of 30 degrees, the infrared cut filter has:
• an average transmittance of 80% or more at wavelengths in a range of 450 to 600 nm;
• a transmittance of 2% or less at all wavelengths in a range of 700 to 1200 nm;
• and
• a transmittance variation D30 represented by the following expression (2) of less than 0.04:
• D30(%/nm)=(Tmax·30−Tmin·30)/(λ(Tmax·30)−λ(Tmin·30)) (2)
• wherein Tmax·30 and Tmin·30 are respectively a maximum transmittance and a minimum transmittance at wavelengths in a range of 1100 to 1250 nm, λ(Tmax·30) is a wavelength having the maximum transmittance Tmax·30, and λ(Tmin·30) is a wavelength having the minimum transmittance Tmin·30.