Hoya Lens Thailand Ltd.

Hoya Corporation

Jins Holdings Inc.

Yoichi Ogo

Yoshitaka Matsui

Naomi Ogawa

Koushi Harada

Keiji Nishimoto

Kenji Takashiba

Hitoshi Kamura

Shunsuke Shioya

Eisaku Iwasaki

Kenji Nakamura

Provided is a spectacle lens, having a lens substrate including a blue light absorbable compound, and a multilayer film including a chromium layer with a film thickness of 1.0 to 10.0 nm, blue light cut rate being 21.0% or more, a dominant wavelength measured at the object side surface of the spectacle lens falling within a range of 500.0 to 550.0 nm, and a dominant wavelength measured at the eyeball side surface of the spectacle lens falling within a range of 500.0 to 550.0 nm.

Spectacle lens and spectacles

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.

The spectacle lens includes a lens substrate including a blue light absorbing compound, and a multilayer film including a metal layer having a film thickness of 1.0 nm to 10.0 nm, wherein a blue light cut ratio is 35.0% or more, an average reflectance in a wavelength range of 400 nm to 500 nm on an object-side surface obtained by measurement from the object side is in a range of 15.00% to 25.00%, and an average reflectance in a wavelength range of 400 nm to 500 nm on an eyeball-side surface obtained by measurement from the object side is less than 2.00%.

The spectacle lens includes a lens substrate including a blue light absorbing compound, and a multilayer film including a metal layer having a film thickness of 1.0 nm to 10.0 nm, wherein a blue light cut ratio is 21.0% or more, an average reflectance in a wavelength range of 400 nm to 500 nm measured on an object-side surface is 1.00% or less, and an average reflectance in a wavelength range of 400 nm to 500 nm measured on an eyeball-side surface is 1.00% or less.

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 a spectacle lens including a multilayer film of a vapor deposition film (excluding a metal film and a metal alloy film) directly or indirectly at least on one surface of a lens substrate. The multilayer film includes at least one high refractive index layer and at least one low refractive index layer, the total optical film thickness of the high refractive index layer is &#x3bb;/4 or more at a wavelength &#x3bb;=780 nm, and a reflection spectrum measured in a wavelength range of 380 to 2000 nm on a surface having the multilayer film has a maximum reflectance in a wavelength range of 800 to 1350 nm.

Spectacle lens

Provided 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 mean reflectance Rin a wavelength range of 430 to 450 nm measured on the object-side surface of the spectacle lens is equal to or more than 1.00%, and a mean reflectance Rin a wavelength range of 280 to 380 nm measured on the eyeball-side surface of the spectacle lens is less than or equal to 15.00%.

Spectacle lens that reflects blue light, and spectacles equipped with the spectacle lens

The disclosure includes producing a plastic lens with an antireflection film at a lower cost. The plastic lens is configured to include a plastic base material; and an antireflection film having an electrically conductive layer that is formed in contact with a surface of the plastic base material and that has colorless transparency, and an antireflection film main body that contains a metal oxide, formed on the electrically conductive layer.

Growing community of inventors

Tokyo, Japan

Yoichi Ogo