Patent ID: 9732942
Date: 2017-08-15
CPC Classifications: F21V,F21W,F21Y,G02B

Claim:
1. An illumination device comprising: a number of light sources generating light, wherein said light sources are arranged into a first group of light sources and into a second group of light sources, wherein said first group of light sources is configured to generate light of at least two different colors and said second group of light sources comprises multi-die light emitting diodes (LEDs); a number of light collecting means adapted to collect said generated light and to convert said collected light into a number of light beams, said light beams propagating along an optical axis; and a number of optical mixers arranged between said second group of light sources and said light collecting means, wherein said number of light sources and said light collecting means are movable in relation to each other between a first position and a second position, and said first group of light sources and said second group of light sources are individually controllable, wherein said light collecting means can be fixed in said first position to collect at least a part of said at least two different colors of light from said first group of light sources and convert said collected light from said first group of light sources into a number of first light beams, and can be fixed in said second position to collect at least a part of said light from said second group of light sources and convert said collected light from said second group of light sources into number of second light beams, and wherein said optical mixers are adapted to collect light from said second group of light sources to convert said collected light from said second group of light sources into a number of intermediate homogeneous light beams propagating towards said light collecting means.