| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a compact, thin and well-balanced finger vein authentication apparatus for reducing the deterioration of authentication precision. <P>SOLUTION: This finger vein authentication apparatus includes: a light source for irradiating one side at the tip of a finger with light and an image pickup sensor for imaging the other side of the fingertip, the light source and the image pickup sensor being positioned at the both sides of the nail of the fingertip. A tool for supporting the fingertip and the root side of the finger are disposed between the light source and the image pickup sensor, and a light shielding means for shielding the rays of light is disposed on the light source side so that the illumination light can be prevented from traveling to the ball side of the finger. <P>COPYRIGHT: (C)2009,JPO&INPIT |
