Optical: systems and elements – Polarization without modulation – By relatively adjustable superimposed or in series polarizers
Reexamination Certificate
2005-08-18
2009-02-24
Lavarias, Amel C (Department: 2872)
Optical: systems and elements
Polarization without modulation
By relatively adjustable superimposed or in series polarizers
C359S506000, C359S209100, C359S236000, C353S020000, C362S019000
Reexamination Certificate
active
07495831
ABSTRACT:
An optical element, an optical device, and a display device are disclosed that are able to change a polarization state in time order and to produce polarized light with little wavelength dependence and superior in polarization purity, and able to perform pixel shift easily and accurately to realize high resolution image display. The optical element has a translucent surface parallel to the rotational axis of the optical element, and at least a portion of the translucent surface is formed from an optically anisotropic medium. A polarization state of a light beam transmitting through the translucent surface is switched in time order along with rotation of the optical element.
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Fujita Kazuhiro
Hirano Yukiko
Matsuki Yumi
Miyagaki Kazuya
Murai Toshiharu
Doak Jennifer L.
Lavarias Amel C
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Ricoh & Company, Ltd.
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