Optical elements having programmed optical structures
US7221847B2 · kind B2 · utility
23Cited by
94References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2004 |
| Grant date | May 22, 2007 |
| Priority date | — |
| Expiry date | Aug 3, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S385/901
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An optical element, such as a lightguide or an optical film, is formed with a predetermined, programmed pattern of optical structures. The optical structures may be arranged to selectively correct for non-uniformities in the output a lightguide, or may be arranged to otherwise enhance the performance of a display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.