BIOLOGICAL OBJECT DETECTION APPARATUS

摘要

An apparatus for detecting a biological object includes a transparent plate, onto which an object to be detected is placed, for allowing a passage of projected light and reflected light used for an optical detection, a light source located under the transparent plate for projecting a light beam used for a biological object detection toward a portion of the surface of the placed object toward which a light beam for detecting a characteristic pattern of the surface of the placed object is directed, and a light detection unit located below the transparent plate for receiving the light projected from the light source and subsequently reflected by the surface of the object placed on or pressed onto the transparent plate and detecting the characteristic of a reflection rate of the received light. The detection of whether or not the detected object is a biological object is carried out by detecting the characteristic of the reflection rate of the received light by the light detection unit, on the basis of the changes in a color of a surface of the biological object due to a pressure applied to the biological object when the biological object is pressed onto the transparent plate.