Light emitting panel assemblies
US7226196B2 · kind B2 · utility
17Cited by
84References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2002 |
| Grant date | Jun 5, 2007 |
| Priority date | — |
| Expiry date | Mar 4, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S362/804
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Light emitting panel assemblies include a light guide having a uniform or variable pattern of individual deformities of well defined shapes that are projections or depressions on or in one or more surface areas of the light guide. The deformities are quite small in relation to the width and length of the light guide. At least some of the deformities may have two or more surfaces that come together to form a ridge having a total length that is quite small in relation to the width and length of the light guide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.