Patent ID: 9201181
Filing Date: 2015-12-01
Classification: G02B

Abstract:
1. An infrared cut filter comprising: a transparent dielectric substrate; an infrared reflecting layer formed on one surface of the transparent dielectric substrate and configured to reflect infrared light; and an infrared absorbing layer formed on the other surface of the transparent dielectric substrate and configured to absorb infrared light, wherein the infrared absorbing layer is formed of a resin that contains infrared absorbing pigment, the infrared reflecting layer is formed of a dielectric multilayer film, given that a wavelength that provides the transmittance of 50% of the infrared reflecting layer, when an incident angle is 0°, is λ the infrared reflecting layer and the infrared absorbing layer are formed such that −50 nm≦λ given that a cut-off wavelength that provides the transmittance of 50% of the infrared cut filter, when the incident angle is 0°, is λ