Optical: systems and elements – Polarization without modulation – Polarization by reflection or refraction
Reexamination Certificate
2011-07-19
2011-07-19
Shafer, Ricky D (Department: 2872)
Optical: systems and elements
Polarization without modulation
Polarization by reflection or refraction
C359S487040, C359S489070, C359S490010
Reexamination Certificate
active
07982952
ABSTRACT:
A polarization component, capable of efficiently reflecting an obliquely transmitted light beam toward a light source without degrading the transmission-polarization property of a perpendicular incident light beam, is provided. A C-plate having an oblique retardation of at least λ/8 with respect to a light beam inclined by at least 30° is disposed between at least two reflective circular polarizer layers whose selective reflection wavelength bands of polarized light overlapping each other. A combination of a reflective linear polarizer and a quarter wavelength plate may be used instead of the reflective circular polarizer. Alternatively, a combination of two reflective linear polarizer layers and two quarter wavelength plate layers (Nz≧2) disposed therebetween can provide a similar effect. Further, a combination of two reflective linear polarizer layers and a half wavelength plate (Nz≧1.5) disposed therebetween may be used. When reflective linear polarizer layers are used, they must be bonded together with their axial directions set at a certain angle. The polarization component is preferably used in various image display apparatuses such as liquid crystal display apparatuses and organic EL display apparatuses.
REFERENCES:
patent: 3940203 (1976-02-01), La Russa
patent: 4388453 (1983-06-01), Finkelmann et al.
patent: 4984872 (1991-01-01), Vick
patent: 5089883 (1992-02-01), Welker et al.
patent: 5211877 (1993-05-01), Andrejewski et al.
patent: 5235443 (1993-08-01), Barnik et al.
patent: 5541745 (1996-07-01), Fergason
patent: 5548422 (1996-08-01), Conner et al.
patent: 5560864 (1996-10-01), Goulding
patent: 5580950 (1996-12-01), Harris et al.
patent: 5580964 (1996-12-01), Berneth et al.
patent: 5627666 (1997-05-01), Sharp et al.
patent: 5721603 (1998-02-01), De Vaan et al.
patent: 5833880 (1998-11-01), Siemensmeyer et al.
patent: 5928801 (1999-07-01), Broer et al.
patent: 6078421 (2000-06-01), Davey et al.
patent: 6141069 (2000-10-01), Sharp et al.
patent: 6217955 (2001-04-01), Coates et al.
patent: 6291035 (2001-09-01), Verrall et al.
patent: 6307604 (2001-10-01), Hikmet et al.
patent: 6344887 (2002-02-01), Ma et al.
patent: 6549335 (2003-04-01), Trapani et al.
patent: 6630974 (2003-10-01), Galabova et al.
patent: 6757039 (2004-06-01), Ma
patent: 6773766 (2004-08-01), Meyer et al.
patent: 6822710 (2004-11-01), Son et al.
patent: 6822711 (2004-11-01), Yoshida et al.
patent: 6975455 (2005-12-01), Kotchick et al.
patent: 6985291 (2006-01-01), Watson et al.
patent: 7245431 (2007-07-01), Watson et al.
patent: 7317498 (2008-01-01), Hara et al.
patent: 7443585 (2008-10-01), Hara et al.
patent: 7492516 (2009-02-01), Takahashi et al.
patent: 7746555 (2010-06-01), Hara et al.
patent: 2001/0003473 (2001-06-01), Galabova et al.
patent: 2002/0034009 (2002-03-01), Broer et al.
patent: 2002/0036735 (2002-03-01), Arakawa et al.
patent: 2005/0088740 (2005-04-01), Takeda et al.
patent: 2005/0180017 (2005-08-01), Hara et al.
patent: 2005/0200776 (2005-09-01), Hara et al.
patent: 2007/0008460 (2007-01-01), Takeda et al.
patent: 3836955 (1990-05-01), None
patent: 4220289 (1993-12-01), None
patent: 19504224 (1995-08-01), None
patent: 4408171 (1995-09-01), None
patent: 0066137 (1982-12-01), None
patent: 0261712 (1988-03-01), None
patent: 0358208 (1990-03-01), None
patent: 0415735 (1991-03-01), None
patent: 0578302 (1994-01-01), None
patent: 0834754 (1998-04-01), None
patent: 1008886 (2000-06-01), None
patent: 1160591 (2001-12-01), None
patent: 2280445 (1995-02-01), None
patent: 2-158289 (1990-06-01), None
patent: 3-45906 (1991-02-01), None
patent: 6-82777 (1994-03-01), None
patent: 6-235900 (1994-08-01), None
patent: 6-324333 (1994-11-01), None
patent: 7-36032 (1995-02-01), None
patent: 10-54909 (1998-02-01), None
patent: 10-510671 (1998-10-01), None
patent: 10-321025 (1998-12-01), None
patent: 11-3608 (1999-01-01), None
patent: 2001-166294 (2001-06-01), None
patent: 2001-264535 (2001-09-01), None
patent: 2001-516066 (2001-09-01), None
patent: 2001-330731 (2001-11-01), None
patent: 2001-521643 (2001-11-01), None
patent: 2001-343529 (2001-12-01), None
patent: 2002-55232 (2002-02-01), None
patent: 2002-90535 (2002-03-01), None
patent: 2002-533742 (2002-10-01), None
patent: 2002-341343 (2002-11-01), None
patent: 1999-75428 (1999-10-01), None
patent: 20010026728 (2001-04-01), None
patent: 20010065713 (2001-07-01), None
patent: 100358223 (2002-10-01), None
patent: 93/22397 (1993-11-01), None
patent: 98/00428 (1998-01-01), None
patent: 99/09452 (1999-02-01), None
patent: 00/37585 (2000-06-01), None
patent: 00/39631 (2000-07-01), None
patent: 01/37007 (2001-05-01), None
patent: 02/25687 (2002-03-01), None
“Dictionary of Liquid Crystal”, edited by Liquid Crystal Section at Japan Society for the Promotion of Science, published by Baifukan Co., Ltd., 1989, pp. 65, w/ partial English translation.
Supplementary Search Report, maling date of Jun. 29, 2007, issued in corresponding European Patent Application No. 03717612.0.
Supplementary Partial Search Report, mailing date of Apr. 23, 2007, issued for corresponding European Patent Application No. 03717612.0.
W.A. Schurcliff, “Polarized Light: Production and Use”, Harvard University Press, (JP edition), 1965, pp. 136, Massachusetts, w/ partial English translation.
Korean Office Action dated Aug. 31, 2009, issued on corresponding Korean Patent Application No. 10-2004-7016797.
Hara Kazutaka
Miyatake Minoru
Nitto Denko Corporation
Shafer Ricky D
Westerman Hattori Daniels & Adrian LLP
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