Optical unit, optical apparatus using the same, light source apparatus, and projection display apparatus
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United States of America Patent
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Jan 9, 2018
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app pub date -
Sep 28, 2015
filing date -
Sep 30, 2014
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Abstract
An optical unit includes a plurality of paraboloid mirrors configured to reflect light fluxes from a plurality of LDs and to guide them to a concave lens. The light fluxes from the paraboloid mirrors are a plurality of convergent light fluxes, and the paraboloid mirrors reflect the light fluxes from the LDs such that as the convergent light fluxes travel farther away from the paraboloid mirrors, distances therebetween become shorter.
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