Light-emitting diode lighting device with multiple-layered source
US8021019B2 · kind B2 · utility
11Cited by
7References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2009 |
| Grant date | Sep 20, 2011 |
| Priority date | — |
| Expiry date | May 7, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting device includes a cover, a cap, a central post having opposite ends coupled to the cover and the cap respectively, and a plurality of first and second frames. The cover and the cap both form a plurality of circumferentially distributed slots opposite to each other. The first and second frames have ends respectively fit into the slots of the cover and the cap and each frame carries at least one light-emitting diode. As such, a light-emitting diode lighting device that is hollow, light-weighted, and exhibiting excellent heat dissipation is formed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.