Optical microstructures for light extraction and control
US8218920B2 · kind B2 · utility
32Cited by
220References
25Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 30, 2008 |
| Grant date | Jul 10, 2012 |
| Priority date | — |
| Expiry date | Jan 22, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/351
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The application of optical microstructures improve the quality of light available to the viewer of an optical display system, or any display which works on the concept of moving one surface into direct contact or close proximity of a light guide to extract light through frustrated total internal reflection. Certain ones of the microstructures can act to assist in overcoming stiction between the surface and the light guide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.