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US 2010/0303409 A1Published application
Solid state light source based on hybrid waveguide-down-converter-diffuser
AssigneeThe Regents of the University of Michigan
InventorsPEI-CHENG KU, Max Shtein
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Abstract
A solid state light source comprising a light pump outputting light energy; a waveguide optically coupled to the light pump source for receiving the light energy; and a down-converter for converting the light energy from the waveguide to a lesser light energy.
Claims17
A solid state light source comprising:
- a light pump outputting light energy;
- a waveguide assembly optically coupled to said light pump for receiving said light energy, said waveguide assembly having at least a core section;
- and
- a down-converter converting said light energy from said waveguide assembly to a lesser light energy, said down-converter being disposed external to said core section of said waveguide assembly.
1 more element
A method of outputting light energy comprising:
- introducing light energy into a waveguide assembly, an intensity of said light energy within said waveguide assembly decreasing along a length of said waveguide assembly;
- and
- longitudinally shaping said waveguide assembly to produce a generally uniform light leakage exiting a side of said waveguide assembly at a first longitudinal position and at a second longitudinal position, said light energy within said waveguide assembly being different at said first longitudinal position and said second longitudinal position.
A method of outputting light energy comprising:
- introducing light energy into a waveguide assembly, an intensity of said light energy within said waveguide assembly decreasing along a length of said waveguide assembly;
- and
- bending said waveguide assembly to form a progressively changing radius to produce a generally uniform light leakage exiting a side of said waveguide assembly at a first longitudinal position and at a second longitudinal position, said light energy within said waveguide assembly being different at said first longitudinal position and said second longitudinal position.
Dependencies are inferred from the claim text.