Light emitting diode emergency lighting methods and apparatus
US7690802B2 · kind B2 · utility
38Cited by
6References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2007 |
| Grant date | Apr 6, 2010 |
| Priority date | — |
| Expiry date | Dec 30, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S362/80
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An LED based emergency lighting system is described. Unlike a typical approach in which one lighting system provides normal ambient lighting and a second different system provides auxiliary emergency lighting, a common integrated system can be satisfactorily employed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.