OPTICAL FILM, OPTICAL FILM MANUFACTURING METHOD AND SURFACE LIGHT-EMITTING BODY
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United States of America Patent
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Feb 25, 2016
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Mar 26, 2014
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Mar 28, 2013
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Abstract
This optical film includes a diffraction grating layer made of a transparent material, and a concavo convex surface structure layer made of a transparent material. The surface light-emitting body includes the aforementioned optical film. This optical film manufacturing method involves supplying a second active energy ray curable composition between a substrate and a mold having a diffractive grating transfer part, irradiating second active energy rays to obtain a laminate having a diffractive grating layer on convex structure transfer part, and irradiating first active energy rays.
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