Light fixture comprising a multi-functional non-imaging optical component
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United States of America Patent
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Jul 31, 2012
Grant Date -
N/A
app pub date -
Feb 13, 2008
filing date -
Feb 12, 2007
priority date (Note) -
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Abstract
In one embodiment of this invention, a light fixture comprises a light source, a collimating element, an optical cavity and a multi-functional non-imaging optical component (MNOC) comprising an anisotropic light scattering film. In another embodiment of this invention, the MNOC further comprises a surface relief feature which redirects a portion of the incident light. The present invention provides a system and method of controlling the output of light from a light fixture. One or more volumetric anisotropic diffusing components are utilized to control both the photometric distribution and visual appearance of the light fixture. A high degree of optical control is obtained with durable components that can be easily customized to optimize optical performance in light fixtures designed as pendants, wall sconces, wallwashers, downlights, and tasklights. The luminance and color uniformity as well as the illuminance and color uniformity of illumination can be controlled and improved.
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