| abstract |
PROBLEM TO BE SOLVED: To provide an optical filter that selectively cuts infrared light and light having a wavelength that lowers color purity, does not cause malfunction, has excellent color balance, and has excellent durability. In an optical filter having a filter layer containing a dye and a polymer binder on a support, an associative dye having an absorption maximum in the range of 750 to 1100 nm is used, and an ultraviolet absorber having high light resistance is added. |