Optical Waveguides
AssigneeCree, Inc.
InventorsKurt S. Wilcox, John W. Durkee, Craig D. Raleigh, Joseph P. Chobot
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Abstract
An optical waveguide includes a coupling optic and a waveguide body. According to one embodiment, the body includes a first curved surface that extends between an input surface and an end surface and a second surface opposite the first surface. The input surface has a first thickness disposed between the first and second surfaces and the end surface has a second thickness disposed between the first and second surfaces less than the first thickness.
Claims96
An optical waveguide body, comprising:
- a first curved surface that extends between an input surface and an end surface;
- a second surface opposite the first surface;
- wherein the input surface has a first thickness disposed between the first and second surfaces;
- and
- wherein the end surface has a second thickness disposed between the first and second surfaces less than the first thickness.
A waveguide body, comprising:
- a body of optically transmissive material having an input surface for light to enter the body of optically transmissive material along a light path wherein the body of optically transmissive material is curved and has an inflection region that extends transverse to the light path.
A waveguide body, comprising:
- a body of optically transmissive material having an input surface for light to enter the body of optically transmissive material along a light path wherein the body of optically transmissive material is curved and has a plurality of inflection regions.
A waveguide, comprising:
- a body of optically transmissive material;
- a plurality of LEDs spaced about the body of optically transmissive material such that light developed by the plurality of LEDs is directed through an input edge surface of the body of optically transmissive surface;
- and
- extraction features carried by the body of optically transmissive material for directing light developed by the plurality of LEDs out of the body of optically transmissive material.
A coupling optic, comprising:
- a coupling optic body including a plurality of input cavities each defined by a wall wherein a projection is disposed in each cavity and wherein a recess is disposed in each projection,
- wherein the recess of each projection is adapted to receive an associated LED.
Dependencies are inferred from the claim text.