Lighting apparatus having high operation reliability and lighting system using the same
US9107266B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2011 |
| Grant date | Aug 11, 2015 |
| Priority date | — |
| Expiry date | Mar 8, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting apparatus having high operation reliability includes a first lighting unit with a first turn-on voltage and a second lighting unit with a second turn-on voltage greater than the first turn-on voltage. The lighting apparatus is put in use for generating output light according to a driving current flowing through the first lighting unit or the second lighting unit. The first lighting unit is capable of generating output light having a first brightness according to the driving current. The second lighting unit, electrically connected in parallel with the first lighting unit, is capable of generating output light having a second brightness according to the driving current. The second brightness is preferably identical to the first brightness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.