| 摘要 |
A higher forgery prevention effect is realized. A display (10) includes a first interface section (12a) provided with a relief-type diffraction grating constituted by a plurality of grooves, and a second interface section (12b) provided with a plurality of recesses or projections arranged two-dimensionally at a center-to-center distance smaller than the minimum center-to-center distance of the plural grooves, and each having a forward tapered shape. |
