DIFFUSION STRUCTURE AND LIGHTING DEVICE WITH SUCH DIFFUSION STRUCTURE
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United States of America Patent
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Issued Date -
Oct 17, 2013
app pub date -
Jun 22, 2012
filing date -
Apr 13, 2012
priority date (Note) -
Abandoned
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Abstract
A diffusion structure and a lighting device with the diffusion structure are provided. The diffusion structure includes a first surface and a second surface. A speckle layer is formed on the first surface. A grating layer is formed on the second surface. The grating layer is arranged between a light source and the speckle layer. Consequently, plural light beams emitted by the light source are sequentially transmitted through the grating layer and the speckle layer and then outputted to surroundings.
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