Patent ID: 7310133

Claim:
A finger identification apparatus, comprising: a guide member for positioning a set finger, the guide member comprising a finger rest and a member for positioning a fingertip; a light source for radiating light to transmit through the set finger; an optical opening which transmits the transmitted light through the set finger; an imaging unit for imaging the transmitted light from the optical opening; and an identifying unit that extracts a vein pattern from an image by the imaging unit and matching the vein pattern with a registered pattern, wherein when a direction to a surface of a ball of the set finger from a back of the ball is downward, the optical opening is located lower than each contact surface of the set finger with the finger rest and the member for positioning a fingertip, and the contact surface of the set finger with the member for positioning a fingertip is located lower than the contact surface of the set finger with the finger rest.