Patent ID: 9599763
Date: 2017-03-21
CPC Classifications: F21V,F21Y,G02B

Claim:
1. A traffic light luminaire, comprising: at least two light sources: an elongated light homogenizing device configured to spatially superimpose light emitted by the at least two light sources into a combined beam of superimposed light; wherein the light homogenizing device comprises an optical waveguide including an input area feeding the light emitted by the at least two light sources into the optical waveguide and an output area emitting the beam of superimposed light; a collimating device configured to collimate the beam of superimposed light emitting from the output area of the optical waveguide; and a light distribution device for spreading the collimated light within a specific solid angle with a specific luminous intensity distribution; wherein at least one of the at least two light sources is a high brightness light source; wherein the light distribution device is a microstructured distributor having a microstructured surface, wherein each equal-sized macroscopic section of the microstructured distributor contributes to the luminous intensity distribution in the same way within said whole specified solid angle.