Patent ID: 9081125
Filing Date: 2015-07-14
Classification: F21S,F21V,F21Y,G02B

Abstract:
1. An illumination device comprising: one or more light-emitting elements (LEEs) operatively disposed on one or more substrates and configured to emit light in an emission angular range; one or more primary optics optically coupled with the one or more LEEs and configured to direct light received from the one or more LEEs at one or more input ends of the one or more primary optics, and provide directed light in a collimated angular range at one or more output ends of the one or more primary optics, a divergence of the collimated angular range being smaller than a divergence of the emission angular range; a light guide optically coupled at an input end of the light guide with the one or more output ends of the one or more primary optics, the light guide shaped to guide in a forward direction light received from the one or more primary optics to an output end of the light guide and provide guided light in a forward angular range at the output end of the light guide, wherein a prevalent direction of propagation within the forward angular range has a component parallel to the forward direction; a solid secondary optic optically coupled with the second end of the light guide at an input end of the solid secondary optic to receive light from the light guide, the solid secondary optic having first and second redirecting surfaces and first and second output surfaces, the first and second redirecting surfaces being spaced apart from the input end of the secondary optic, an elongated secondary reflector facing the first output surface, wherein the elongated secondary reflector can be adjustably arranged and configured to reflect at least some of the first output light as third output light, and to provide the third output light in a first forward output angular range.