Nano fractal diffuser
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United States of America Patent
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Aug 21, 2012
Grant Date -
Dec 30, 2010
app pub date -
Jun 25, 2009
filing date -
Jun 25, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A diffusive device has an array of discrete facets which may be of a size and pattern similar to a fractal. The facet dimensions can be greater than half the wavelength of incident light such that the facets substantially diffract light. A polarizing wire-grid layer comprised of an array of elongated parallel conductive wires with a period less than half the wavelength of incident light may be disposed between, beneath, or above the facets. The wire-grid polarizes the light by substantially reflecting light having an s-polarization orientation and substantially transmitting a portion of light having a p-polarization orientation.
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