LED lamp
US9169977B2 · kind B2 · utility
4Cited by
29References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2014 |
| Grant date | Oct 27, 2015 |
| Priority date | — |
| Expiry date | Apr 30, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A LED lamp has an enclosure including an optically transmissive lens. LEDs are mounted on a plane in the enclosure and are operable to emit light through the lens when energized through an electrical path. A portion of the lens extends behind the plane of the plurality of LEDs such that a portion of the light is emitted as back light. Approximately between 5 and 25 percent of the total Lumen output of the lamp is emitted as backlight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.