Lighting apparatus
US9538591B2 · kind B2 · utility
11Cited by
5References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 23, 2015 |
| Grant date | Jan 3, 2017 |
| Priority date | — |
| Expiry date | Jul 23, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is a lighting apparatus using an LED as a lighting source. The lighting apparatus may distribute a current corresponding to a rectified voltage to a lighting unit and a secondary current circuit, perform primary light emission at low luminance, and reduce an optical deviation between LED groups through secondary light emission. Thus, the lighting apparatus can reduce an optical deviation corresponding to dimming and one cycle of rectified voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.