Light emitting bulb, luminary and illumination device using LED
US8502468B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 26, 2011 |
| Grant date | Aug 6, 2013 |
| Priority date | — |
| Expiry date | Nov 5, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R33/22
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light emitting bulb, a luminary and an illumination device are provided. The light emitting bulb includes a main body and a bulb base. The main body has a plurality of the light emitting units. The bulb base has a plurality of flexible pieces. The flexible pieces are connected to the light emitting units respectively to form a plurality of electrical transmission paths. The luminary further has a lamp holder for holding the light emitting bulb. A control unit in the illumination device is connected to the light emitting bulb through the lamp holder for selectively providing a supply of a power to the light emitting units to control brightness of light emitting units, respectively. The light emitting bulb may facilitate color changing and brightness control without having a control circuit disposed within the light emitting bulb and is associated with a longer lifetime and a lower manufacturing cost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.