Thermal dissipation structure for light emitting diode
US8960964B2 · kind B2 · utility
3Cited by
8References
31Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 6, 2012 |
| Grant date | Feb 24, 2015 |
| Priority date | — |
| Expiry date | May 15, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21K9/62
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The tunable color mixing system includes a mixing barrel that captures light from multiple light emitting diodes emitting at different colors, mixes the light, and outputs the light with a narrow beam angle from a small area. The array of LEDs in the system is thermally coupled to a heat conductor via thermal pads. A flexible printed circuit is electrically connected to the LEDs to supply and fine-tune the electrical power. The array includes LEDs of at least three emitting colors to achieve an output light having a high color rendering index, tunable to a wide range of correlated color temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.