CPC G02B 27/48 (2013.01) [G02B 6/0006 (2013.01); G02B 6/0008 (2013.01)] | 14 Claims |
1. A speckle-suppressing lighting system comprising:
an optical waveguide having a proximal end, a distal end, and being a solid volume of material having a proximal base surface, a distal base surface, an outer lateral-surface therebetween;
a first solid-state light source, optically coupled to the optical waveguide near the proximal end, that emits a first light beam that propagates toward the distal end and has a first center wavelength;
a second solid-state light source, optically coupled to the optical waveguide near the proximal end, that emits a second light beam that propagates toward the distal end and has a second center wavelength differing from the first center wavelength;
a diffuser, at least part of which is between the proximal end and the distal end, that diffuses the first light beam and the second light beam; and
an interior-facing diffuse reflective coating on the outer lateral-surface.
|