Optical: systems and elements – Polarization without modulation – Depolarization
Reexamination Certificate
2009-08-31
2010-12-14
Fineman, Lee (Department: 2872)
Optical: systems and elements
Polarization without modulation
Depolarization
C359S506000, C264S001310
Reexamination Certificate
active
07852559
ABSTRACT:
The present invention provides a diffusely-reflecting polarizer comprising:a first polymer which is amorphous and having a birefringence of less than about 0.02 and a second polymer, the first polymer being a continuous phase, and the second polymer being a disperse phase whose index of refraction differs from said continuous phase by greater than about 0.05 along a first axis and by less than about 0.05 along a second axis orthogonal to said first axis;wherein the diffuse-reflectivity of said first and second polymers taken together along at least one axis for at least one polarization state of electromagnetic radiation is at least about 50%, the diffuse transmittance of said first and second polymers taken together along at least one axis for at least one polarization state of electromagnetic radiation is at least about 50%.
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Anderson Charles C.
Greener Jehuda
Laney Thomas M.
Mi Xiang-Dong
Fineman Lee
Oh Edwin
SKC Haas Display Films Co., Ltd.
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