LOTTERY TICKET, ITS MANAGEMENT METHOD/SYSTEM, AND LOTTERY DEVICE USED FOR LOTTERY TICKET

摘要

PROBLEM TO BE SOLVED: To provide a lottery ticket which is highly security-oriented and dishonest use/tampering-proof, its management method/system and a lottery device used for the ticket.

SOLUTION: This lottery ticket has at least a low melting-point metallic thin film layer and a transparent protection layer formed from the side closest to a transparent substrate on one side of the substrate and at least a lottery information layer and a light reflection layer formed from the side closest to the substrate on the other side. The lottery information layer has recorded lottery information which is concealed by the low melting-point metallic thin film layer having concealing properties so that the lottery information is not visible from the protection layer side. The part melted due to the heating of the low melting-point metallic thin film layer loses the concealing properties and the lottery information is visible. In addition, the concealed lottery information and visible information which correspond one to one to the other are printed in a symbol or a bar code.

COPYRIGHT: (C)2004,JPO