ILLUMINATION SYSTEM, COLLIMATOR AND SPOTLIGHT

摘要

The invention relates to an illumination system (10, 12), a collimator (30, 32) for use in the illumination system and a spotlight. The illumination system comprises a light emitting diode (20), a collimator and a luminescent layer(40). The light emitting diode emits light via the luminescent layer and the collimator in a direction awayfrom the illumination system. The collimator comprises a light input window (34) for receiving light from the light 5 emitting diode. The collimator further comprises a light exit window (36) for emitting a collimated beam of light. The light substantially progresses through the collimator via total internalreflection. The luminescent layer comprises luminescent material which converts at least part of the light emitted by the light emitting diode into light of a predefined color. The luminescent layer is applied to the light input window of the collimator.10 The effect of the measures according to the invention is that the applicationof the luminescent layer on the light input window of the collimator results in improved color uniformity and enables a remote phosphor arrangement while maintaining a collimated beam.