Lighting unit and luminaire for road and/or street lighting
US8931919B2 · kind B2 · utility
1Cited by
1References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 17, 2010 |
| Grant date | Jan 13, 2015 |
| Priority date | — |
| Expiry date | Mar 19, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/72
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting unit for use in a luminaire, in particular a luminaire for road and/or street lighting, has an adaptable light distribution wherein the lighting unit comprises at least two light sources or groups of light sources, each of the light sources or groups of light sources having an individual light distribution characteristic, wherein the overall light distribution of the lighting unit is adapted by modifying the ratio of the light outputs of the at least two light sources or groups of light sources
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.