Methods and systems for emergency lighting
US9595845B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2014 |
| Grant date | Mar 14, 2017 |
| Priority date | — |
| Expiry date | Nov 14, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Methods and systems for emergency lighting are disclosed. Embodiments of the invention provide a solid-state lighting system, light fixture or a collection of light fixtures, with a control input that is used to cause the system to dim to a specific level during an outage in order to conserve power in a building where power is backed up by an emergency inverter or a back-up generator. With embodiments of the invention, there is no need to run a separate power feed, as might otherwise be required for keeping distributed batteries charged or for running specified emergency-only fixtures from back-up power. In some embodiments the solid-state lighting system includes an occupancy sensor wherein the specified light output level is determined at least in part based on the occupancy of a room. In some embodiments, the system can be selectively configured for the specified output level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.