Reducing angular spread in digital image projection
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United States of America Patent
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Nov 22, 2016
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app pub date -
Oct 19, 2012
filing date -
Oct 20, 2011
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Abstract
Chromatic aberration can be reduced and extreme projection angles can be allowed in a projection system by modifying one color channel of light having a wavelength bandwidth with image data to produce imaged light, causing the imaged light to spread angularly when displaying the imaged light through an optical distorting element onto a screen, and reducing angular spread of the imaged light exiting the optical distorting element by adjusting the wavelength bandwidth.
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