NEAR-INFRARED CUT FILTER AND SOLID-STATE IMAGE PICKUP DEVICE INCLUDING SAME

摘要

A near-infrared cut filter of which a transmittance satisfies the conditions (A) and (B), and a solid-state image pickup device including the filter are provided.

主权项

1. A near-infrared cut filter of which a transmittance satisfies the following conditions (A) and (B):
(A) in a wavelength range greater than or equal to 380 nm, an absolute value of a difference between a shortest wavelength La at which a transmittance of light incident to a near-infrared cut filter in a vertical direction is 70% and a longest wavelength Lb at which a transmittance of light incident to the near-infrared cut filter in a vertical direction in a wavelength range less than or equal to 430 nm is 30% is less than or equal to 25 nm, and (B) in a wavelength range of 380 to 430 nm, an absolute value of a difference between a wavelength Ma at which a transmittance of light incident to the near-infrared cut filter in a vertical direction is 50% and a wavelength Mb at which a transmittance of light incident from a direction which forms an angle of 30 degrees with respect to the direction perpendicular to the near-infrared cut filter is 50% is less than or equal to 10 nm.