ILLUMINATION DEVICES
First Claim
1. An illumination device comprising:
- a light source;
a light guide comprising a first surface, a second surface disposed opposite to the first surface, a first end and a second end, and a length therebetween, the light guide positioned to receive light from the light source into the light guide first end, and the light guide configured such that light from the light source provided into the first end of the light guide propagates towards the second end;
a plurality of light turning features, each light turning feature comprising at least one turning section aligned to turn light propagating toward the second end of the light guide out of the light guide; and
at least one light redirection feature, each light redirection feature comprising at least one redirection section aligned to redirect light incident thereon within the light guide along one or more directions.
2 Assignments
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Accused Products
Abstract
Illumination device and methods of making the same are disclosed. In one embodiment, an illumination device includes a light source, a light guide having a first planar surface, a first end and a second end, and a length therebetween, the light guide positioned to receive light from the light source into the light guide first end, and the light guide configured such that light from the light source provided into the first end of the light guide propagates towards the second end, a plurality of light turning features that are configured to reflect light propagating towards the second end of the light guide out of the planar first surface, and one or more light redirection features configured to redirect light within the light guide at more useful angles.
151 Citations
39 Claims
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1. An illumination device comprising:
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a light source; a light guide comprising a first surface, a second surface disposed opposite to the first surface, a first end and a second end, and a length therebetween, the light guide positioned to receive light from the light source into the light guide first end, and the light guide configured such that light from the light source provided into the first end of the light guide propagates towards the second end; a plurality of light turning features, each light turning feature comprising at least one turning section aligned to turn light propagating toward the second end of the light guide out of the light guide; and at least one light redirection feature, each light redirection feature comprising at least one redirection section aligned to redirect light incident thereon within the light guide along one or more directions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. An illumination device comprising:
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means for providing light; means for guiding light comprising a first surface, a second surface disposed opposite to the first surface, a first end and a second end, and a length therebetween, the means for guiding light being positioned to receive light from the light source into the means for guiding light first end, and the means for guiding light configured such that light from the means for providing light provided into the first end of the means for guiding light propagates towards the second end; a plurality of means for turning light configured to turn light propagating toward the second end of the light guiding means out of the means for guiding light; and a means for redirecting light configured to redirect light incident thereon within the means for guiding light along one or more directions. - View Dependent Claims (36, 37, 38, 39)
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Specification