Spectacle lens and spectacles
US-2017299896-A1 · Oct 19, 2017 · US
Spectacle lens and spectacles
US2019219841A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2019219841-A1 |
| Application number | US-201916364532-A |
| Country | US |
| Kind code | A1 |
| Filing date | Mar 26, 2019 |
| Priority date | Nov 24, 2017 |
| Publication date | Jul 18, 2019 |
| Grant date | — |
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- Title
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Abstract
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The spectacle lens includes a lens substrate; a multilayer film disposed on one surface of the lens substrate; and a multilayer film disposed on the other surface of the lens substrate, wherein an average reflectance within the wavelength range from 380 to 500 nm measured at least on one surface of the spectacle lens is 10.00% or more, and a reflectance measured at least on one surface of the spectacle lens is 5.00% or less in the entire range within the wavelength range from 400 to 780 nm.
First claim
Opening claim text (preview).
What is claimed is: 1 . A spectacle lens, comprising: a lens substrate; a multilayer film disposed on one surface of the lens substrate; and a multilayer film disposed on the other surface of the lens substrate, wherein an average reflectance within the wavelength range from 380 to 500 nm measured at least on one surface of the spectacle lens is 10.00% or more, and a reflectance within the entire wavelength range from 400 to 780 nm measured at least on one surface of the spectacle lens is 5.00% or less. 2 . The spectacle lens according to claim 1 , wherein the average reflectance within the wavelength range from 380 to 500 nm measured on one surface is 10.00% or more, and the average reflectance within the wavelength range from 380 to 500 nm measured on the other surface is less than 10.00%, and an average reflectance 1 within the wavelength range from 430 to 450 nm measured on one surface where the average reflectance of the spectacle lens within the wavelength range from 380 to 500 nm is 10.00% or less, is 12.00% or more. 3 . The spectacle lens according to claim 2 , wherein, on a surface where the average reflectance within the wavelength range from 380 to 500 nm is 10.00% or less, a difference between the average reflectance 1 within the wavelength range from 430 to 450 nm and an average reflectance 2 within the wavelength range from 460 to 480 nm of the spectacle lens, that is (average reflectance 1−average reflectance 2), is 5.00% or more. 4 . The spectacle lens according claim 1 , wherein, in the entire range of the wavelength range of more than 500 nm and 780 nm or less, the reflectance measured on one surface of the spectacle lens and the reflectance measured on the other surface of the spectacle lens are both 5.00% or less. 5 . Spectacles including the spectacle lenses according to claim 1 .
Assignees
Inventors
Classifications
- G02C7/107Primary
Interference colour filters · CPC title
- G02C7/104Primary
having spectral characteristics for purposes other than sun-protection · CPC title
comprising deposited thin solid films (G02B5/281 - G02B5/289 take precedence; multilayered film filters for fibre optic multiplexing G02B6/29361) · CPC title
Multilayers · CPC title
Laminated or compound lenses · CPC title
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Frequently asked questions
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- What does patent US2019219841A1 cover?
- The spectacle lens includes a lens substrate; a multilayer film disposed on one surface of the lens substrate; and a multilayer film disposed on the other surface of the lens substrate, wherein an average reflectance within the wavelength range from 380 to 500 nm measured at least on one surface of the spectacle lens is 10.00% or more, and a reflectance measured at least on one surface of the s…
- Who is the assignee on this patent?
- Hoya Lens Thailand Ltd
- What technology area does this patent fall under?
- Primary CPC classification G02C7/107. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu Jul 18 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).