LED dimming module
US9253835B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 23, 2012 |
| Grant date | Feb 2, 2016 |
| Priority date | — |
| Expiry date | Apr 23, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/22
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention proposes an LED dimming module (10) comprising two LED strings (1,2), the first LED string (1) comprising at least one color converted blue or UV LED (1a) and the second LED string (2) comprising at least one amber light emitting LED (2a), the LED module further comprising control means (3) connected to the first and second LED string (1,2), said control means (3) being designed to selectively vary a current provided to the first LED string (1) such that a non-linear dimming curve (13b) of the resulting emitted light is obtained, said dimming curve (13b) approaching the planckian curve (9) on the CIE chromaticity diagram.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.