Illuminating device incorporating a high clarity scattering layer
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United States of America Patent
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May 25, 2010
Grant Date -
N/A
app pub date -
Dec 17, 2007
filing date -
Dec 15, 2006
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present invention provides improved optical elements, such as light diffusing films, plates, and lenses, which can be used in light-emitting devices, such as light fixtures to control the distribution of light projected onto illuminated objects, such as walls, sculptures, and landscaping. Compared to traditional light scattering films, plates or lenses, improvements in illuminance uniformity, optical throw, system efficacy, and aesthetic appearance are achieved. Embodiments of the invention utilize region(s) of volumetric asymmetric diffusion that allow a partial quantity of light to be transmitted without significant scattering in order to improve optical throw and illuminance uniformity. Embodiments can also eliminate hotspot and thus improve the illuminated uniformity.
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Cited Art Landscape
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