LED lighting unit including elongated heat sink and elongated lens
US7815338B2 · kind B2 · utility
240Cited by
5References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2008 |
| Grant date | Oct 19, 2010 |
| Priority date | — |
| Expiry date | Oct 13, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A LED lighting unit including an elongated heat sink having two spaced apart longitudinal grooves, the grooves facing tangentially or at an angle greater than an angle between a tangent of the lighting unit at the groove and a radius of the lighting unit at the groove. At least one LED is mounted to the heat sink between the grooves, and the at least one LED is enclosed by a lens having bulged longitudinal edges by sliding the bulged longitudinal edges into the grooves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.