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US 2026/0259431 A1Published application
Spectacle lens and spectacles
AssigneeHoya Lens Thailand Ltd.
InventorsMunenori KAWAJI, Kyosuke UEDA
Life of this patent
Estimating the term…
Abstract
Provided is a spectacle lens including a lens substrate and a multilayer film located on at least one surface of the lens substrate, in which an average reflectance with respect to light incident at 65° in a wavelength range of 400 to 700 nm on the spectacle lens surface side having the multilayer film is 7.0% or less.
Claims9
1:
- A spectacle lens comprising:
- a lens substrate;
- and
- a multilayer film located on at least one surface of the lens substrate, wherein
- an average reflectance with respect to light incident at 65° in a wavelength range of 400 to 700 nm on the spectacle lens surface side having the multilayer film is 7.0% or less.
2 more elements
2:
- The spectacle lens according to claim 1, wherein an average reflectance with respect to light incident at 65° in a wavelength range of 280 to 380 nm on the spectacle lens surface side having the multilayer film is 7.0% or less.
3:
- The spectacle lens according to claim 1, wherein an average reflectance with respect to light incident at 0° in a wavelength range of 400 to 700 nm on the spectacle lens surface side having the multilayer film is 1.0% or less.
4:
- The spectacle lens according to claim 1, wherein the multilayer film includes one or more high-refractive index layers and one or more low-refractive index layers, and
- one or more of the low-refractive index layers are layers having a refractive index of 1.20 or more and 1.38 or less.
5:
- The spectacle lens according to claim 1, wherein the multilayer film includes one or more high-refractive index layers and one or more low-refractive index layers, and
- one or more of the high-refractive index layers are layers having a refractive index of 2.00 or more and 2.40 or less.
6:
- The spectacle lens according to claim 1, wherein the multilayer film includes one or more high-refractive index layers and one or more low-refractive index layers, and
- one or more of the low-refractive index layers are layers having a refractive index of 1.44 or more and 1.49 or less.
7:
- The spectacle lens according to claim 1, wherein the multilayer film includes one or more high-refractive index layers and one or more low-refractive index layers, and
- a total number of layers of the high-refractive index layers and the low-refractive index layers are seven or more.
8:
- The spectacle lens according to claim 1, wherein an average reflectance with respect to light incident at 65° in a wavelength range of 280 to 380 nm on the spectacle lens surface side having the multilayer film is 7.0% or less, and an average reflectance with respect to light incident at 0° in a wavelength range of 400 to 700 nm is 1.0% or less,
- the multilayer film includes one or more high-refractive index layers and one or more low-refractive index layers,
- one or more of the low-refractive index layers are layers having a refractive index of 1.20 or more and 1.38 or less,
- one or more of the high-refractive index layers are layers having a refractive index of 2.00 or more and 2.40 or less,
- one or more of the low-refractive index layers are layers having a refractive index of 1.44 or more and 1.49 or less, and
- a total number of layers of the high-refractive index layers and the low-refractive index layers are seven or more.
3 more elements
9:
- Spectacles comprising:
- the spectacle lens according to claim 1.