| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical disk capable of forming a visible image by a laser beam emitted from an optical pickup. <P>SOLUTION: A metal reflection layer 1H is formed on a face of an image recording layer 1I that is irradiated with a laser beam, a visible image is formed on the image recording layer 1I by a temperature rise by emitting a laser beam emitted from an incident light surface side to the metal reflection layer 1H, and the formed visible image can be recognized with eyes from a surface opposite from the incident light surface. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
