Abstract:
An optical component is characterized in that: a spectral characteristics curve of a multilayer film provided on a first surface of a plastic base has one local maximum at a first wavelength in a wavelength range of 380 nm to 780 nm and has one local minimum at a second wavelength 200 nm or less longer than the first wavelength; an average reflectivity of the multilayer film provided on the first surface in a wavelength range of the first wavelength ±25 nm is 50% or less; an average reflectivity of a multilayer film provided on a second surface of the plastic base relative to the average reflectivity of the multilayer film provided on the first surface is 40% or less in the wavelength range of the first wavelength ±25 nm; and a spectral characteristics curve of the multilayer film provided on the second surface does not have a local maximum in the wavelength range of the first wavelength ±25 nm.
Abstract:
An optical component includes: a plastic base; and a multilayer film disposed on at least a rear surface of both surfaces of the plastic base, wherein the multilayer film has a maximum reflectivity of 3% to 50% in a wavelength range of 380 nm to 780 nm and has an average reflectivity of 20% or less in a wavelength range of 280 nm to 380 nm.
Abstract:
An optical component is an optical component including: a plastic base; and a multilayer film disposed on at least a surface having a greater curvature, of a front surface of the plastic base and a rear surface of the plastic base, wherein the multilayer film has a maximum reflectivity of 3% to 50% in a wavelength range of 380 nm to 780 nm.
Abstract:
Provided is a spectacle lens (1) comprising one multilayer film (3a, 3b) on each surface of a plastic lens base material (2), wherein by setting an average reflection rate in at least the 530-570 nm wavelength range to 2.5-5.5% in at least one of the multilayer films (3a, 3b) disposed on a surface of the plastic lens base material, it is possible to attain, in dim environments, an improvement in vividness and brightness in visibility of objects, particularly those that are red in color, as well as an improvement in visibility of the white in white computer screens and the like, and the lens is thereby suitable for the eyes of elderly people.