Optical filter

Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only

Reexamination Certificate

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Details

C349S096000

Reexamination Certificate

active

08035777

ABSTRACT:
The present invention provides an optical filter comprising a crystalline polymer having a spherulite structure, particularly an optical filter comprising porous particles formed of a crystalline polymer in which single particles per se have a spherulite structure. This optical filter can convert linear polarized light to nonpolarized light close to natural light with high efficiency.

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