Optical waveguide and luminaire incorporating same
First Claim
1. An optical waveguide, comprisinga body of optically transmissive material comprising a width greater than an overall thickness thereof and comprising a first side, a second side opposite the first side, a plurality of interior coupling cavities extending between the first and second sides each adapted to receive a light emitting diode, and extraction features on the second side;
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wherein the extraction features are adapted to direct light out of at least the first side and wherein at least one extraction feature forms a taper disposed at an outer portion of the body between the first side and the second side;
wherein the thickness of the body tapers overall from a center to an outside edge thereof;
wherein each extraction feature comprises a trough, each trough comprising a depth from the second side;
wherein a first plurality of consecutive extraction features each comprise a first depth from the second side;
wherein a second plurality of extraction features each comprise varying depths from the second side such that each varying depth is different from the first depth; and
wherein the first plurality of consecutive extraction features is disposed closer to the respective interior coupling cavity than the second plurality of extraction features.
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Accused Products
Abstract
An optical waveguide includes a body of optically transmissive material having a width substantially greater than an overall thickness thereof. The body of material has a first side, a second side opposite the first side, and a plurality of interior bores extending between the first and second sides each adapted to receive a light emitting diode. Extraction features are disposed on the second side and the extraction features direct light out of at least the first side and at least one extraction feature forms a taper disposed at an outer portion of the body.
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Citations
41 Claims
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1. An optical waveguide, comprising
a body of optically transmissive material comprising a width greater than an overall thickness thereof and comprising a first side, a second side opposite the first side, a plurality of interior coupling cavities extending between the first and second sides each adapted to receive a light emitting diode, and extraction features on the second side; - and
a plurality of location structures extending from the second side, wherein the plurality of location structures are disposed on a particular extraction feature of the extraction features on the second side; wherein the extraction features are adapted to direct light out of at least the first side and wherein at least one extraction feature forms a taper disposed at an outer portion of the body between the first side and the second side; wherein the thickness of the body tapers overall from a center to an outside edge thereof; wherein each extraction feature comprises a trough, each trough comprising a depth from the second side; wherein a first plurality of consecutive extraction features each comprise a first depth from the second side; wherein a second plurality of extraction features each comprise varying depths from the second side such that each varying depth is different from the first depth; and wherein the first plurality of consecutive extraction features is disposed closer to the respective interior coupling cavity than the second plurality of extraction features. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 41)
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13. An optical waveguide assembly, comprising
a plurality of waveguides each comprising a body of optically transmissive material comprising a width greater than an overall thickness thereof and comprising a first side, a second side opposite the first side, and extraction features on the second side, and wherein at least one of the waveguides comprises an interior recess extending between the first and second sides and adapted to receive a light emitting diode; -
wherein the extraction features are adapted to direct light out of the first side and wherein at least one extraction feature is disposed at an outer portion of each body; wherein each extraction feature comprises a trough and a ridge, each trough comprising a depth from the second side and each ridge comprising an elevation from the first side; wherein a first plurality of consecutive extraction features comprises a first particular ridge elevation and varying trough depth; and wherein a second plurality of consecutive extraction features comprises a particular trough depth and a second particular ridge elevation that is less than the first particular ridge elevation; wherein the first and second pluralities of consecutive extraction features abut one another; and wherein each waveguide of the plurality of waveguides is rotatably mounted such that illumination is determined by both an arrangement of the extraction features and an orientation of each waveguide of the plurality of waveguides. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 38, 39, 40)
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31. An optical waveguide luminaire, comprising:
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a plurality of modular tiles, each tile comprising; a planar waveguide body comprising a first surface, one or more interior recesses disposed in the planar waveguide body, LEDs extending into the one or more interior recesses, light diverters disposed in the one or more interior recesses and adapted to direct light developed by the LEDs transversely into the waveguide body, and extraction features disposed in the first surface and adapted to extract light out of the first surface; a first plurality of extraction features disposed about a first interior recess wherein the first plurality of extraction features meet at square corners; a second plurality of extraction features disposed about a second interior recess wherein the second plurality of extraction features meet at rounded corners; and a mounting structure rotatably connecting each modular tile to a supporting structure; wherein illumination is determined by both an arrangement of the extraction features on each planar waveguide body and an orientation of each modular tile of the optical waveguide luminaire. - View Dependent Claims (32, 33, 34, 35, 36, 37)
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Specification