Optical: systems and elements – Polarization without modulation – By relatively adjustable superimposed or in series polarizers
Reexamination Certificate
2005-02-23
2008-12-16
Allen, Stephone B. (Department: 2872)
Optical: systems and elements
Polarization without modulation
By relatively adjustable superimposed or in series polarizers
C359S583000, C359S629000, C359S506000
Reexamination Certificate
active
07466486
ABSTRACT:
A polarization separating element which can be easily manufactured without increasing the cost and can separate light into plural directions by using one sheet. A polarization separating element includes a structural birefringence body having a base body made of a photosensitive material of which periodic refractive index distributions are formed in plural directions and at least a pair of surfaces is formed in the base body in which one surface is a light incident location and the other surface is a light emitting location.
REFERENCES:
patent: 5161039 (1992-11-01), Schellenberg
patent: 5808798 (1998-09-01), Weber et al.
patent: 6157471 (2000-12-01), Bignolles et al.
patent: 6424395 (2002-07-01), Sato et al.
patent: 6813076 (2004-11-01), Okubo et al.
patent: 2004/0036971 (2004-02-01), McGuire, Jr.
patent: 2004/0218271 (2004-11-01), Hartmaier et al.
patent: 2004/0258355 (2004-12-01), Wang et al.
patent: 2 813 127 (2002-02-01), None
patent: 7-66084 (1995-07-01), None
C. Joubert et al., “TN-LCD Viewing Angle Compensation with Holographic Volume Gratings,” Jan. 28, 1999, Proceedings of SPIE, vol. 3635, pp. 137-142.
European Search Report dated May 24, 2005 from corresponding European Application No. 05005044.2.
Allen Stephone B.
Alps Electric Co. ,Ltd.
Beyer Law Group LLP
Chapel Derek S
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