Optical: systems and elements – Polarization without modulation
Reexamination Certificate
2011-05-31
2011-05-31
Allen, Stephone B (Department: 2872)
Optical: systems and elements
Polarization without modulation
C359S507000
Reexamination Certificate
active
07952802
ABSTRACT:
Disclosed is an optical device which can be formed as a thinner layer by a simplified manufacturing process at a reduced cost. Specifically, the optical device has a multilayer structure wherein a polyvinyl alcohol- or polyvinylene-base polarizing film (b) and protective films (a and c) are directly laminated on top of another without any adhesive layer including a pressure sensitive adhesive layer interposed therebetween. The protective film (c) on one side is composed of a triacetyl cellulose, an alicyclic polyolefin resin, or an alicyclic acrylic resin, and the protective film (a) on the other side is composed of a triacetyl cellulose, a polycarbonate, a polyethylene terephthalate, a polyethylene naphthalate, a (meth)acrylate resin, an alicyclic polyolefin resin, or an alicyclic acrylic resin.
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Communication Pursuant to Article 94(3) EPC, in European Patent Application No. 05 719 992.9-2217, Issued Mar. 23, 2011.
Fujisawa Katsuya
Tanabe Hirofumi
Watanabe Tatsufumi
Allen Stephone B
Chapel Derek S
Kuraray Co. Ltd.
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
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