Illumination system comprising an optical light mixing rod and a pressure mechanism to apply a pressure force to the optical light mixing rod and to press an entrance surface and emitting window together

摘要

The present invention relates to an illumination system comprising at least one light source and an optical light mixing rod. The illumination system comprises a rod holder holding the optical light mixing rod in a position, where the entrance surface of the optical light mixing rod is arranged above the emitting window of the light source. The optical light mixing rod is from in a flexible and solid transparent material and the rod holder is adapted to provide a pressure force to the optical light mixing rod and the pressure force is adapted to press the entrance surface of the optical light mixing rod and the emitting window of the light source together. The optical light mixing rod comprises a bulge the entrance surface and the pressure force presses the bulge flat against the emitting window of the light source.

主权项

1. An illumination system comprising:
at least one light source being configured to emit light from an emitting window; an optical light mixing rod being formed of a solid transparent material and comprising an entrance surface, side surfaces and an exit surface, wherein light from the at least one light source enters the optical light mixing rod through the entrance surface and is transmitted through the optical light mixing rod via reflections at the side surfaces and exits the optical light mixing rod through the exit surface; and a rod holder being adapted to fix the optical light mixing rod in a position, wherein the entrance surface is arranged above the emitting window; wherein the optical light mixing rod is formed in a flexible and solid transparent material and in that the rod holder is adapted to arrange the entrance surface in contact with the emitting window and in that the rod holder comprises a pressure mechanism adapted to provide a pressure force to the optical light mixing rod, the pressure force is adapted to press the entrance surface and the emitting window together and wherein the entrance surface comprises at least one bulge having an increasing thickness that contacts the emitting window when the pressure mechanism provides the pressure force to the optical light mixing rod.