Waveguide concentrator for light source

A projector comprising:

• a light source subassembly comprising a substrate supporting a plurality of semiconductor light sources for providing a plurality of optical beams;
• a waveguide concentrator comprising first and second end facets and a plurality of waveguides extending between the first and second end facets, wherein the waveguide concentrator is optically coupled to the light source subassembly at the first end facet for receiving and guiding the plurality of optical beams in the plurality of waveguides, and wherein spacings between the waveguides at the first end facet are larger than at the second end facet;
• a collimator optically coupled to the waveguide concentrator at the second end facet thereof;
• and
• a tiltable reflector optically coupled to the collimator for receiving and redirecting the plurality of optical beams collimated by the collimator;
• wherein the collimator is configured for collimating the plurality of optical beams emitted at the second end facet of the waveguide concentrator, and for redirecting the plurality of optical beams to impinge onto the tiltable reflector.