Illumination – With polarizer
Reexamination Certificate
2005-11-29
2005-11-29
Cariaso, Alan (Department: 2875)
Illumination
With polarizer
C362S293000, C362S298000, C362S583000, C359S490020, C359S490020
Reexamination Certificate
active
06969177
ABSTRACT:
A polarization recovery system includes a polarizing beam splitter transmitting light of a useful polarization in an output direction and reflecting light of a non-useful polarization in a first orthogonal direction substantially orthogonal to the output direction. An initial reflector may reflect the non-useful polarization light in a second orthogonal direction substantially orthogonal to the output direction and the first orthogonal direction, and a final reflector may reflect the non-useful polarization light in the output direction. The non-useful polarization light may be rotated substantially to light of the useful polarization by the initial and final reflectors.
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Imai, Masao and Kubota, Eiichi, “Polarization Converting Element”, Published Aug. 16, 1988, Japanese Patent Office Patent Journal, English translation of document JP 63197913 A, pp. 1-8.
Inatsugu Seiji
Li Kenneth K.
Cariaso Alan
Fulbright & Jaworski LLP
Wavien, Inc.
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