| http://www.w3.org/ns/prov#value | - For achieving the above-mentioned object, a method for producing an optical film according to the present invention is a method for producing an optical film including a base and a birefringent layer, and the method includes: a step of coating on a base a material for forming a coating film to be a birefringent layer; and a step of solidifying the coating film on the base so as to form a birefring
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