Light emitting panel assemblies having LEDs of multiple colors
US7178965B2 · kind B2 · utility
16Cited by
70References
31Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 16, 2004 |
| Grant date | Feb 20, 2007 |
| Priority date | — |
| Expiry date | Dec 16, 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 hollow light emitting panel member having a sheet, film or substrate attached or positioned against one or both sides thereof to produce a desired effect. A pattern of deformities or disruptions may be provided on or in the sheet, film or substrate to control the output ray angle distribution to suit a particular application.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.