Illumination device
US7334917B2 · kind B2 · utility
19Cited by
13References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 29, 2005 |
| Grant date | Feb 26, 2008 |
| Priority date | — |
| Expiry date | Sep 29, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/325
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An illumination device comprising at least four luminous units (1, 2), the light emitted by at least two of the four luminous units (1, 2) being suitable for being mixed to form white light. Moreover, an apparatus (3) for dimming at least one of the four luminous units (1, 2) is provided. White light having a desired color temperature (CCT) and a high color rendering index can be generated by means of the illumination device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.