Post-formable multilayer optical films and methods of forming
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United States of America Patent
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Sep 7, 2004
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app pub date -
Apr 3, 2002
filing date -
Jan 13, 1998
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Abstract
Articles including post-formed multilayer optical films with layers of at least one strain-induced birefringent material, methods of manufacturing such articles by post-forming multilayer optical films, and multilayer optical films that are particularly well-suited to post-forming operations are disclosed. The articles, methods and multilayer optical films of the present invention allow for post-forming of multilayer optical films including strain-induced index of refraction differentials while retaining the desired optical properties of the multilayer optical films.
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