Hoya Lens Thailand Ltd.

Kenji Takashiba

Yoichi Ogo

Hitoshi Kamura

Yoshitaka Matsui

Naomi Ogawa

Keiji Nishimoto

Hirotaka Kinoshita

Jutathap Wisuthtatip

Toshihide Tsukatani

Xawkat Ahmat

Eisaku Iwasaki

Hisashi Higuchi

A spectacle lens including a lens base material and a multilayer film provided on each surface of an eyeball-side surface and an object-side surface of the lens base material, in which a normal incidence mean reflectance Rin a wavelength range of 430 to 450 nm measured on the eyeball-side surface of the spectacle lens and a normal incidence mean reflectance Rin a wavelength range of 430 to 450 nm measured on the object-side surface of the spectacle lens each are more than 0%, and Ris greater than R.

Spectacle lens and spectacles

Provided is a spectacle lens including a lens substrate, a multilayer film located on an object-side surface of the lens substrate, and a multilayer film located on an eyeball-side surface of the lens substrate, wherein a blue light absorption rate is 10.0% or higher, the lens substrate includes a blue-light-absorbing compound, and an average reflectance in a wavelength range of 400 nm to 500 nm measured on each of the object-side surface and the eyeball-side surface of the spectacle lens is in a range of 10.0% to 20.0%, and a luminous reflectance measured on each of the object-side surface and the eyeball-side surface of the spectacle lens is less than 2.0%.

An aspect of the present invention relates to an eyeglass lens, which comprises an outermost layer in the form of a water-repellent vapor deposition film formed by vapor depositing a vapor deposition material in the form of a perfluoropolyether-modified silane compound denoted by general formula (I): wherein, in general formula (I), Rdenotes an alkyl group with 1 or 2 carbon atoms, x denotes 1 or 0, Rdenotes an alkoxy group with 1 or 2 carbon atoms, Rdenotes a hydrogen atom or a phenyl group, and n denotes an integer ranging from 10 to 40.

Eyeglass lens and method of manufacturing the same

Growing community of inventors

Prachatipat, Thailand

Kenji Takashiba