Light generator systems and methods
US8686644B2 · kind B2 · utility
8Cited by
12References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 31, 2011 |
| Grant date | Apr 1, 2014 |
| Priority date | — |
| Expiry date | Aug 20, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light generating system comprising: a plurality of solid state emitters (SSEs) and a stability control system for controlling the spectral stability of the SSEs. In a particular case, the stability control system may comprise: a power regulator to regulate power supplied to a sub-set of the plurality of SSEs; a constant current circuit connected to the power regulator to provide a constant current to the sub-set of SSEs; a current regulation set point connected to the constant current circuit; and a controller configured to set the regulation set point based on metrology relating to the state of the SSEs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.