POLARIZATION SPLIT ELEMENT AND METHOD FOR MANUFACTURING THE SAME
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United States of America Patent
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Issued Date -
Nov 10, 2011
app pub date -
Mar 5, 2010
filing date -
Apr 13, 2009
priority date (Note) -
Abandoned
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Abstract
Grating grooves of a predetermined shape are filled with a polymerizable liquid crystal, and thereafter, the polymerizable liquid crystal is cured to form a striped structure including a uniaxial polymer liquid crystal having an alignment orientation identical to the longitudinal direction of the grating grooves, without using a liquid crystal alignment film. Consequently, it is possible to stably and effectively align the polymer liquid crystal without using an alignment film and to adjust the film thickness easily, whereby a polarization splitting element exhibiting a high and uniform split efficiently can be obtained stably.
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