Dichromatic polarizing element and production method thereof
AssigneeFuji Photo Film Co., Ltd.
InventorsKeiichi Taguchi, Naoyuki Nishikawa
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Abstract
A dichromatic polarizing element comprising a water-soluble organic dichromatic dye selected from the group consisting of a bisazo compound of a specific structure, the tautomer thereof, and the salts of them, wherein the dichromatic dye comprises the aggregates thereof oriented to a definite direction such that the dye can polarize a light passed therethrough, and a method of producing the polarizing element orienting the aggregates by a specific method are provided.
Claims14
A dichromatic polarizing element comprising a water-soluble organic dichromatic dye selected from the group consisting of a bisazo compound represented by following formula (1), the tautomer thereof, and the salts thereof, wherein the dichromatic dye comprises aggregates oriented to a definite direction such that the dye can polarize a light passing therethrough,
- wherein R represents an unsubstituted or substituted phenyl group or an unsubstituted or substituted heteroaryl group, and X represents an unsubstituted or substituted phenylene group.
Dependencies are inferred from the claim text.