LUMINAIRE HAVING AN ASYMMETRICAL LIGHT DISTRIBUTION PATTERN
First Claim
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1. An apparatus, comprising:
- a light guide including a light exit surface and a reflection surface opposite the light exit surface;
a plurality of light emitting diodes (LEDs) positioned around a perimeter of the light guide and configured to direct light into the light guide; and
a plurality of Gaussian dots positioned on the light guide and configured to extract light out of the light guide, the plurality of LEDs and the plurality of Gaussian dots being positioned such that the extracted light is distributed asymmetrically around the perimeter of the light guide.
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Abstract
An apparatus is disclosed including a light guide and a plurality of light emitting diodes (LEDs). The light guide includes a rear portion including a first edge, a second edge, and a rear edge. The first edge meets the rear edge at a first obtuse angle, and the second edge meets the rear edge at a second obtuse angle. The plurality of light emitting diodes (LEDs) disposed on the first edge, the second edge, and the rear edge, and it is arranged to produce an asymmetric light distribution pattern including a rear light emission and a forward light emission having a greater peak intensity than the rear light emission.
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Citations
20 Claims
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1. An apparatus, comprising:
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a light guide including a light exit surface and a reflection surface opposite the light exit surface; a plurality of light emitting diodes (LEDs) positioned around a perimeter of the light guide and configured to direct light into the light guide; and a plurality of Gaussian dots positioned on the light guide and configured to extract light out of the light guide, the plurality of LEDs and the plurality of Gaussian dots being positioned such that the extracted light is distributed asymmetrically around the perimeter of the light guide. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method, comprising:
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producing light with a plurality of light emitting diodes (LEDs) positioned around a perimeter of a light guide, the light guide including a light exit surface and a reflection surface opposite the light exit surface; directing the produced light into the light guide; directing a first portion of the light, within the light guide, to strike the light exit surface; directing a second portion of the light, within the light guide, to reflect off the reflection surface and strike the light exit surface; and extracting, with a plurality of Gaussian dots positioned on the light exit surface, at least some of the first portion of the light and at least some of the second portion of the light, the plurality of LEDs and the plurality of Gaussian dots being positioned such that the extracted light is distributed asymmetrically around the perimeter of the light guide. - View Dependent Claims (16, 17, 18, 19)
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20. An apparatus, comprising:
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a light guide including a light exit surface and a reflection surface opposite the light exit surface, the light exit surface defining a first plane generally orthogonal to the light exit surface; a plurality of light emitting diodes (LEDs) positioned around a perimeter of the light guide and configured to direct light into the light guide; and a plurality of Gaussian dots positioned on the light exit surface and configured to extract light out of the light guide, the plurality of LEDs and the plurality of Gaussian dots being positioned such that the extracted light includes more light on a first side of the first plane than on a second side, opposite the first side, of the first plane.
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Specification