| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an optical element which has a clear color tone, the polarizing state of which can be easily observed and which has good visibility, in the optical element having a forgery prevention function utilizing a sub-wavelength grating; and to provide a forgery prevention display body which effectively utilizes the excellent forgery prevention function of the optical element. <P>SOLUTION: In the optical element having the forgery prevention function, a minute rugged pattern at least a portion of a surface of which is covered with a reflection layer is arranged and an optical layer is arranged at a remoter side from an observation point toward the minute rugged pattern and the reflection layer. The optical layer is a light absorbing layer absorbing at least a portion of visible light. The minute rugged pattern contains convex shapes which repeat at a period of≥200 nm and <800 nm and are subjected to closest packing alignment in a plane. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
