Optical element, display device, and input device
US9618657B2 · kind B2 · utility
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18Claims
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Assignee
Inventors
Key dates
| Filing date | Mar 30, 2012 |
| Grant date | Apr 11, 2017 |
| Priority date | — |
| Expiry date | Mar 30, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/36
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical element has a base material having a surface and a plurality of structures which are arranged on the surface of the base material at a fine pitch equal to or shorter than the wavelength of visible light and which each includes a convex or concave portion. The elastic modulus of the material forming the structures is 1 MPa or more and 1200 MPa or less, and the surface on which the structures are formed are hydrophilic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.