Light emitting panel assemblies
US8459858B2 · kind B2 · utility
3Cited by
129References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2011 |
| Grant date | Jun 11, 2013 |
| Priority date | — |
| Expiry date | Dec 7, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S362/812
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An optical assembly comprises light sources and a light emitting panel member having an input edge to which each of the light sources is optically coupled at a different location along the input edge. Different sets of individual optical deformities on or in at least one of the sides of the panel member each have at least one surface that is shaped or oriented to extract light propagating in the same direction through the panel member in different directions for viewing from different angles through one of the sides of the panel member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.