Patent ID: 11531149

Abstract:
An optical (1a) includes a light-absorbing layer (10). The light-absorbing layer absorbs light in at least a portion of the near-infrared region. When light with a wavelength of 300 to 1200 nm is incident on the optical filter (1a) at an incident angle of 0°, the optical filter (1a) satisfies given spectral transmittance requirements. When an average of absolute values of differences each between a value of a normalized spectral transmittance for an incident angle x° and a value of a normalized spectral transmittance for an incident angle y° in the wavelength range of W nm to V nm (W<V) is expressed as ΔTSx/yW-V, the optical filter (1a) satisfies requirements ΔTS0/40380-530≤3%, ΔTS0/40450-650≤3%, and ΔTS0/40530-750≤3%.