LED homogenizer

摘要

One embodiment of an optical system described herein comprises a source including light emitting diode chip and a homogenizer. One embodiment of the homogenizer comprises an entrance face positioned to receive light from the source, the entrance face having a first shape, a body configured to homogenize the received light and an exit face, the exit face parallel to the primary emitting face of the source. The homogenizer can emit light with a half angle that is at least 80% of the half angle of light entering the homogenizer.

主权项

1. An optical system comprising:
a homogenizer configured to emit light that has a half angle that is at least 80% of a half angle of light entering the homogenizer, the homogenizer comprising:
an entrance face positioned to receive light from a source, the entrance face having a first shape;a body configured to homogenize light received through the entrance face by reflecting the light a plurality of times off sidewalls of the body; andan exit face configured to emit light, the exit face parallel to the entrance face; and an imaging high numerical aperture optical system coupled to the exit face of the homogenizer.