Light mixing module, and a luminaire comprising such a light mixing module
US9097824B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2011 |
| Grant date | Aug 4, 2015 |
| Priority date | — |
| Expiry date | Mar 25, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0073
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light mixing module (3) for receiving light from a first set of light sources (4) and a second set of light sources (5), said light mixing module comprising: —an annular light guiding element (11), said annular light guiding element having an inner edge (13), a peripheral edge (12), a first intermediate surface (15) extending between said inner and peripheral edges and arranged to face said light sources, and a second intermediate surface (16) extending between said inner and peripheral edges opposite said first intermediate surface, wherein said inner edge (13) defines a cavity (18) with an opening arranged to face said light sources, wherein said opening is arranged to receive light from said first set of light sources (4) and said first intermediate surface (15) is arranged to receive light from said second set of light sources (5); and —a first reflective surface (17) arranged to close said cavity in an end opposite said opening so as to form a first mixing chamber (18), wherein said annular light guiding element (11) and said first reflective surface (17) is arranged in such a way that light entering via said opening is mixed in said first mixing chamber (18), coupled into s…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.