Illumination device with different distances between light sources and lenslets

摘要

The present invention relates to an illumination device comprising a plurality of light sources (211) emitting light, an optical gate (130); a light collector (220) arranged between the light sources (211) and optical gate (130) and an optical projecting system adapted to image the optical gate at a distance along the optical axis. The light collector (220) is adapted to collect light from a plurality of light sources and where the light collector comprises a plurality of lenslets (221) collecting light from the light sources (211) and convert the light into a plurality of light beams propagating along an optical axis (150). The axial distances between the lenslets and light sources along the optical axis for adjacent lenslets are different for at least some of the adjacent lenslets.