Illumination device with reflectors
US8025422B1 · kind B1 · utility
11Cited by
1References
12Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Aug 3, 2010 |
| Grant date | Sep 27, 2011 |
| Priority date | — |
| Expiry date | Aug 3, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An exemplary illumination device includes a heat sink, a plurality of LED modules mounted on the heat sink, an envelope engaged with the heat sink and covering the LED modules, and a reflector positioned on the envelope. Light generated by the LED modules emits forward through the envelope out of the illumination device and has a main emission direction. The reflector reflects the light back to a direction sideways and opposite to the main emission direction to increase an illumination area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.