Light emitting device for AC operation
US8716742B2 · kind B2 · utility
6Cited by
1References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 22, 2011 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | Nov 7, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2224/49113
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A light emitting device includes a substrate, a plurality of rectifier diodes, and at least one light emitting diode (LED) module. The substrate has a first cavity, a second cavity, and a third cavity formed thereon. The rectifier diodes are arranged in the first cavity and the third cavity respectively. The LED module is arranged in the second cavity. The LED module includes a plurality of LEDs. The light emitting device is capable of rectifying and converting an alternating current (AC) power supply to drive the LEDs to emit light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.