OPTICAL COMPONENT, METHOD OF MANUFACTURING OPTICAL COMPONENT, AND METHOD OF QUANTIFYING GHOST LIGHT

摘要

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.

主权项

1. A spectacle lens comprising: a plastic base; and a multilayer film provided on each of both surfaces including a first surface and a second surface of the plastic base, wherein:
a spectral characteristics curve indicating a relationship between wavelength and reflectivity of the multilayer film provided on the first surface of the 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 the multilayer film provided on the 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 indicating a relationship between wavelength and reflectivity of the multilayer film provided on the second surface of the plastic base does not have a local maximum in the wavelength range of the first wavelength ±25 nm.