Abstract: A discrimination medium cannot be easily falsified. Since the visibility of the discrimination medium is unique, the discrimination medium is superior in determination of the authenticity. The discrimination medium is structured such that a cholesteric liquid crystal layer 106 and a multilayer film 103 having plural light transparent films which are laminated and are different from each other in refraction index are laminated. The reflection light reflected by the discrimination medium includes circular polarization lights which are different in polarization direction, and the discrimination medium has unique optical characteristics. A discrimination method using the above unique optical characteristics, an article to be discriminated by the discrimination medium, and a discrimination apparatus using the above unique optical characteristics are provided.

Abstract: A discrimination medium cannot be easily falsified. Since the visibility of the discrimination medium is unique, the discrimination medium is superior in determination of the authenticity. The discrimination medium is structured such that a cholesteric liquid crystal layer 106 and a multilayer film 103 having plural light transparent films which are laminated and are different from each other in refraction index are laminated. The reflection light reflected by the discrimination medium includes circular polarization lights which are different in polarization direction, and the discrimination medium has unique optical characteristics. A discrimination method using the above unique optical characteristics, an article to be discriminated by the discrimination medium, and a discrimination apparatus using the above unique optical characteristics are provided.

Abstract: A plurality of medals are placed both on a fixed table and a movable table. A player supplies medals one by one on the movable table via a medal feeding rail. The movable table moves forward and backward in a reciprocating motion to drop medals placed on the fixed table into a medal outlet so as to give the medals to the player. A field table which is placed under the fixed table revolves around a tower, while containing a large number of medals accumulated therein, thereby circulating a large number of accumulated medals. Medals in the field table are automatically taken out, when the amount being in excess, by an overflow prevention device. Thus, the game machine permits the player to continue the game, free from concern about any medal overflowing from the field table.