Optical: systems and elements – Polarization without modulation – Depolarization
Patent
1997-02-28
2000-05-02
Schuberg, Darren E.
Optical: systems and elements
Polarization without modulation
Depolarization
359495, 359500, 359599, G02B 530
Patent
active
060579617
ABSTRACT:
An optical film is provided which exhibits increased gain at nonnormal angles of incidence and which comprises a disperse phase of polymeric particles disposed within a continuous birefringent matrix. The film is oriented, typically by stretching, in one or more directions. The size and shape of the disperse phase particles, the volume fraction of the disperse phase, the film thickness, and the amount of orientation are chosen to attain a desired degree of diffuse reflection and total transmission of electromagnetic radiation of a desired wavelength in the resulting film.
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Allen Richard C.
Carlson Lockwood W.
Kotz Arthur L.
Majumdar Biswaroop
Nevitt Timothy J.
3M Innovative Properties Company
Fortkort John A.
Schuberg Darren E.
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