METHOD OF MANUFACTURING ANISOTROPIC OPTICAL FILM, ANISOTROPIC OPTICAL FILM, AND OPTICAL ELEMENT

摘要

PROBLEM TO BE SOLVED: To obtain an anisotropic optical film which has a high dichroic ratio without any optical defects, and also has an alignment direction different from a coating direction even while coating a base material almost in parallel to the subsreate (in a direction almost matched with a longitudinal direction or a lateral direction of the base material).

SOLUTION: When the film of an anisotropic optical material is formed by a wet film-forming method using the composition for forming the optical film, an alignment treatment direction of a substrate of the base material 10 is made to be an angle between 89° and 1° from the base material and the composition for forming the optical film is applied by moving a slot die 11 being an applicator almost in parallel to a base material direction of the base material 10. Thereby the anisotropic optical film which has alignment with an angle between 85° and 5° from the alignment treatment direction of the base material, is obtained.

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