Variation of power levels within an LED array
US7217006B2 · kind B2 · utility
11Cited by
22References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2005 |
| Grant date | May 15, 2007 |
| Priority date | — |
| Expiry date | Sep 29, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting device having a plurality of high flux LEDs mounted on a heat sink and surrounded by a diffuser and a power supply that provides independent power to individual sets of the LEDs. The heat sink serves to transfer heat from the LEDs to the outside environment. In one embodiment the lighting device is positioned within a fresnel lens to produce a distribution of light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.