OPTICAL ELEMENT, ROLLER TYPE NANOIMPRINTING APPARATUS, AND PROCESS FOR PRODUCING DIE ROLL

摘要

To provide an optical element having excellent adhesion to a lamination film, a roller nanoimprint apparatus, and a production method of a mold roller. The present invention is an optical element, comprising a nanostructure film including recesses and protrusions in nanometer size formed continuously on a surface of the nanostructure film and a lamination film laminated on the nanostructure film,
wherein the nanostructure film includes a nanostructure-free region free from the recesses and protrusions in nanometer size in both ends along a longitudinal direction of the nanostructure film.