Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yoshito Hashimoto0
Noriko Watanabe0
Date of Patent
September 14, 2010
0Patent Application Number
105381180
Date Filed
December 9, 2003
0Patent Primary Examiner
Patent abstract
A plastic substrate according to the present invention is used in optical instruments. The plastic substrate includes a composite substrate 10 in which fibers 11 are embedded in a resin matrix 12. The fibers are arranged in at least one predetermined direction within a plane of the composite substrate. The composite substrate substantially transmits visible radiation and has a predefined retardation that is associated with the predetermined direction in which the fibers are arranged.
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