| 摘要 |
PROBLEM TO BE SOLVED: To reduce misreading of information and to make it difficult to forge it by partially breaking and optically parting a light guide of the information card which is sandwiched between covers and has light guides that are optically parted when necessary, and recording the information by an array of the light guides. SOLUTION: When the information card 10 is pressed on the top surface to partially break a light guide, the pressed part itself of the information card 10 becomes thin and the light guide deforms to become thin or is structurally parted when a relatively soft material is used. Therefore, when the information card 10 is pressed sufficiently, the light guide can optically be parted to <=10 dB, and the possibility that the information is misread becomes low. Further, no punch hole waste is produced, so the card can not be forged by collecting the waste and repairing punch holes. Further, the management of a jig such as a cutter is made easy. |
