Polarizing beam-splitting optical component
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United States of America Patent
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Oct 5, 1999
Issued Date -
N/A
app pub date -
Oct 28, 1997
filing date -
Dec 21, 1993
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Abstract
A light beam-splitting optical component comprising an optical film formed from a layer of a first polymeric material and a layer of a second polymeric material wherein the refractive index of the first material in a first in-plane direction (x) is different from the refractive index of the second material in the first in-plane direction and wherein the difference in the refractive indices of the first material and the second material in a second in-plane direction (y) is the same sign as the difference in the refractive indices of the first material and the second material in the thickness direction (z), such that light polarized in the plane containing the x-axis is reflected from the component and light polarized in the plane containing the y-axis is transmitted through the component.
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