P-polarizer with large z-axis refractive index difference
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United States of America Patent
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Aug 22, 2006
Grant Date -
Jul 1, 2004
app pub date -
Dec 31, 2002
filing date -
Dec 31, 2002
priority date (Note) -
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Abstract
A multilayer optical polarizing film has optical layers whose refractive indices substantially match along orthogonal in-plane x- and y-axes, and that mismatch along a z-axis by at least 0.1 and in some cases by at least 0.15. The film has substantially no reflection bands at normal incidence, and for obliquely incident light has at least one reflection band, for p-polarized light only, that monotonically increases and that shifts to shorter wavelengths as the incidence angle increases.
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