OPTICAL PRODUCT AND SPECTACLE LENS

摘要

An optical product (spectacle lens) according to the present invention includes a base having a convex surface and a concave surface, and an optical multilayer film formed on at least the concave surface of the base. The optical multilayer film has, in total, six layers in which a first layer is closest to the base, and a layer formed of zirconium dioxide and a layer formed of silicon dioxide are alternately layered such that the first layer is the layer formed of zirconium dioxide. A physical film thickness of a fourth layer formed of silicon dioxide is greater than or equal to 10 nm and not greater than 22 nm. A sum of physical film thicknesses of the first layer formed of zirconium dioxide and a second layer formed of silicon dioxide is greater than or equal to 35 nm and not greater than 45 nm.

主权项

1. An optical product comprising:
a base having a convex surface and a concave surface; and an optical multilayer film formed on at least the concave surface of the base, wherein the optical multilayer film has, in total, six layers in which a first layer is closest to the base, and a layer formed of zirconium dioxide and a layer formed of silicon dioxide are alternately layered such that the first layer is the layer formed of zirconium dioxide, a physical film thickness of a fourth layer which is the layer formed of silicon dioxide is greater than or equal to 10 nm and not greater than 22 nm, and a sum of physical film thicknesses of the first layer which is the layer formed of zirconium dioxide and a second layer which is the layer formed of silicon dioxide is greater than or equal to 35 nm and not greater than 45 nm.