Graded-refractive-index optical plastic material of a fluoropolymer containing a material in a concentration gradient therein
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United States of America Patent
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Aug 7, 2001
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N/A
app pub date -
Dec 3, 1997
filing date -
Apr 18, 1994
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Abstract
A graded-refractive-index optical plastic material composed of an amorphous fluoropolymer and at least one material which differs from the polymer in refractive index by at least 0.001, wherein the material is so distributed as to have a concentration gradient in a specific direction, and a method for its production.
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