Polarization conversion element, projector, and method for manufacturing polarization conversion element
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United States of America Patent
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Apr 11, 2017
Grant Date -
Apr 16, 2015
app pub date -
Oct 10, 2014
filing date -
Oct 16, 2013
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Abstract
A polarization conversion element includes first light transmissive substrates and second light transmissive substrates each of which has a light incident surface and a light exiting surface and which are disposed alternately, polarization separation films, reflection films, and retardation plates. One of each of the polarization separation films and a plasma polymerization film is formed on a first surface of each of the first light transmissive substrate. Each of the reflection films is formed on a second surface of each of the first light transmissive substrate. An adhesive layer is formed on a first surface of each of the second light transmissive substrates. The other of each of the polarization separation films and the plasma polymerization films is formed on a second surface of each of the corresponding second light transmissive substrates.
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