| 摘要 |
PROBLEM TO BE SOLVED: To provide a forgery prevention medium and a transfer sheet having a latent image as a high resolution image that can be formed by an on-demand system and can be recognized by use of a polarizing plate 66.SOLUTION: The forgery prevention medium includes an optical anisotropic layer and a high-reflectance perpendicular magnetization layer having a magnetic Kerr effect, in which an image is drawn in the high-reflectance perpendicular magnetization layer by irradiation heating with laser light 71 while applying a magnetic field so as to change a magnetization direction of a part where the image is drawn in the high-reflectance perpendicular magnetization layer, and changes in the magnetization direction can be visually recognized as a black-and-white image through a polarizing plate 66. |
