| 摘要 |
PROBLEM TO BE SOLVED: To provide an object discrimination device that holds a high discrimination function by making it possible to check a sensor for discriminating an object such as a coin even when the device does not operate. SOLUTION: The object discrimination device is provided with a light transmissive member provided at a part of a guide face for placing a coin to one side, and an edge detecting means for irradiating a side face of the coin placed to one side with light through the light transmissive member, receiving reflected light from the side face and detecting the shape of an edge formed on the side face of the coin from the received reflection light. The edge detecting means performs irradiation with light when the coin is conveyed to a predetermined position to detect the shape of the edge on the side face of the coin from the reflection light reflected at the side face of the coin, and performs irradiation with light when the coin is not conveyed to the predetermined position to check the detection performance of the edge detecting means on the basis of the reflection light reflected at one face of the light transmissive member. COPYRIGHT: (C)2008,JPO&INPIT
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