| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical information recording medium from which information can be read by a reader of inexpensive constitution and by which forgery-preventing effect is obtained by improving the secrecy of information. <P>SOLUTION: An optical information recording medium 100 is provided with: a transparent code area 7 comprising a transparent cell 6 provided with a transparent reflecting layer 3; and a QR code 4 consisting of black cells 2 and bright cells 8 which have optical characteristic different from the transparent cell 6 and which can visually be recognized. <P>COPYRIGHT: (C)2004,JPO |
