Luminaire with prismatic optic
AssigneeLighting Science Group Corporation
InventorsEric Holland, Mark Penley Boomgaarden, Ryan Kelley
Life of this patent
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Abstract
A luminaire with a prismatic optic permits the nearly uniform distribution of light about the luminaire. The prismatic optic permits the use of directional light sources, such as light emitting diodes, while maintaining the uniform light distribution. Furthermore, a concave shape of the optic further enables uniform light distribution. When light emitting diodes are used, the luminaire further includes a heat sink to maintain a desirable operational temperature without negatively affecting the light distribution properties of the luminaire.
Claims20
A luminaire comprising:
- a body member;
- an optic carried by the body member and defining an optical chamber;
- and
- a light source carried by the body member and positioned within the optical chamber;
- wherein the optic has a first surface and a second surface;
- wherein the first surface comprises a plurality of generally vertical segments and a plurality of generally horizontal segments;
- and
- wherein the second surface comprises a curvature.
A luminaire comprising:
- an upper structure;
- a lower structure;
- an optic carried by at least one of the upper structure and the lower structure and defining an optical chamber, the optic comprising an upper optic and a lower optic;
- a light source carried by at least one of the upper structure and the lower structure and positioned within the optical chamber, the light source comprising a platform and a plurality of LEDs distributed generally about the platform;
- a reflective surface positioned within the optical chamber and configured to reflect light incident thereupon in the direction of the optic;
- wherein each of the upper optic and the lower optic comprise a first surface and a second surface;
- wherein the first surface of each of the upper optic and the lower optic comprises a plurality of generally vertical segments and a plurality of generally horizontal segments;
- and
- wherein the second surface of each of the upper optic and the lower optic comprises a generally concave curvature.
Dependencies are inferred from the claim text.