Illumination system using a plurality of light sources
First Claim
1. An illumination device, comprising:
- a first plurality of radiation generating sources to generate optical radiation;
a first plurality of optical waveguides, wherein each of the plurality of optical waveguides includes a first end and a second end, wherein each first end is in optical communication with a corresponding radiation generating source of the first plurality of radiation generating sources;
a second plurality of radiation generating sources;
a second plurality of optical waveguides, each having first and second ends wherein each first end is in optical communication with a corresponding radiation generating source of the second plurality of radiation generating sources; and
an array of optical elements, wherein each optical element of the array of optical elements is interposed between a corresponding first end of the first and second pluralities of optical waveguides and the corresponding radiation generating source.
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Abstract
An illumination system includes a plurality of radiation generating sources, such as LED dies. A corresponding plurality of optical waveguides is also provided, with each waveguide having a first and a second end, with each first end being in optical communication with the corresponding LED die. An array of corresponding passive optical elements is interposed between the plurality of LED dies and the corresponding first ends of the plurality of optical waveguides. The illumination system provides for substantially high light coupling efficiency and an incoherent light output that can appear to the human observer as arising from a single point of light. In addition, the light can be output remotely at one or more locations and in one or more directions.
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Citations
16 Claims
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1. An illumination device, comprising:
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a first plurality of radiation generating sources to generate optical radiation; a first plurality of optical waveguides, wherein each of the plurality of optical waveguides includes a first end and a second end, wherein each first end is in optical communication with a corresponding radiation generating source of the first plurality of radiation generating sources; a second plurality of radiation generating sources; a second plurality of optical waveguides, each having first and second ends wherein each first end is in optical communication with a corresponding radiation generating source of the second plurality of radiation generating sources; and an array of optical elements, wherein each optical element of the array of optical elements is interposed between a corresponding first end of the first and second pluralities of optical waveguides and the corresponding radiation generating source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An illumination device, comprising:
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a plurality of solid state radiation sources to generate optical radiation; a plurality of optical fibers, wherein each of the plurality of optical fibers includes a first end and a second end, wherein each first end is in optical communication with a corresponding solid state radiation source of the plurality of solid state radiation sources; and a plurality of non-refractive optical elements, wherein each optical element of the plurality of optical elements is interposed between a corresponding first end and the corresponding solid state radiation source, and wherein each non-refractive optical element is shaped to reflect concentrated light emitted by a corresponding solid state radiation source into a corresponding optical fiber. - View Dependent Claims (16)
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Specification