OPTICAL ELEMENT, AND METHOD FOR MANUFACTURING TRANSFER FOIL FOR FORMING OPTICAL ELEMENT

摘要

PROBLEM TO BE SOLVED: To provide an optical element having a three-dimentional pattern and capable of being easily verified.SOLUTION: An optical element 1 includes a substrate 3 in which, in a planar view, a plurality of arcuate grooves 2a are formed for each dot in random pitch, and a reflection layer 4 formed on the substrate 3 along the grooves 2a. The depth of the groove 2a is adjusted for three-dimensionally expressing a pattern with white or another color.