Optical: systems and elements – Polarization without modulation – By relatively adjustable superimposed or in series polarizers
Reexamination Certificate
2007-02-20
2007-02-20
Shafer, Ricky D. (Department: 2872)
Optical: systems and elements
Polarization without modulation
By relatively adjustable superimposed or in series polarizers
C359S487030, C362S019000
Reexamination Certificate
active
10519631
ABSTRACT:
The invention concerns a polarized light illumination device comprising in particular: a light source, an optical Fresnel Rhomb polarization device receiving light from the source and reflecting it at least twice on at least two opposite surfaces, a reflective polarizer arranged opposite the output surface of the Fresnel Rhomb polarization device to receive the reflected light so as to allow through linearly polarized light along a first direction and to reflect light having any other type of polarization, a reflecting device arranged between the polarization device and the light source so as to allow through the light but to reflect the light reflected by the reflective polarizer. The invention is applicable to liquid crystal display for illuminating liquid crystal valves.
REFERENCES:
patent: 2000379 (1935-05-01), Deisch
patent: 2666355 (1954-01-01), Trurnit
patent: 2976764 (1961-03-01), Hyde et al.
patent: 3432223 (1969-03-01), Uchida
patent: 3635563 (1972-01-01), Mouchart
patent: 3741660 (1973-06-01), Abu-Shumays et al.
patent: 4514047 (1985-04-01), Haskal et al.
patent: 4786802 (1988-11-01), Yoshii et al.
patent: 5684630 (1997-11-01), Arai
patent: 6690513 (2004-02-01), Hulse et al.
patent: 19638645 (1998-03-01), None
patent: 0431894 (1991-06-01), None
patent: 57-169935 (1982-10-01), None
patent: 1130778 (1984-12-01), None
Patent Abstracts of Japan, vol. 008, No. 151, Jul. 13, 1984 & JP 59-048716.
A.V. Balakin et al.: “Experimental observation of the interference of three-and five-wave mixing processes into the signal of second harmonic generation in bacteriorhodopsin solution” Optics Communications, North-Holland Publishing Co. Amsterdam, NL, vol. 141, No. 5-6, Sep. 15, 1997, pp. 343-352.
Benoit Pascal
Drazic Valter
Sarayeddine Khaled
Fried Harvey D.
Laks Joseph J.
Shafer Ricky D.
Thomson Licensing
Verlangieri Patricia
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