Patent ID: 7349561
Filing Date: 2008-03-25
Classification: G06K

Abstract:
1. A fingerprint input device including a light source for emitting a light into an interior of a finger of a fingerprint inputting person, an image pickup unit for receiving the light emitted from said light source and scattered in the interior of said finger, and a peripheral circuit unit connected to said image pickup unit thereby reading a fingerprint image of said finger based on a light reception signal of said image pickup unit through said peripheral circuit unit, the device comprising: a semiconductor substrate bearing an image pickup element constituting said image pickup unit and said peripheral circuit unit; and an inclined fiber optics plate, fixed on said semiconductor substrate, having a surface on which the finger of said fingerprint inputting person is placed and constituting light transmission means for transmitting the light, scattered from the interior of said finger placed on said surface, to said image pickup element along a direction inclined by a predetermined angle; wherein at least a part of said peripheral circuit unit is formed on said semiconductor substrate opposed to a light non-transmitting area of said inclined fiber optics plate, and the light non-transmitting area is fixed to the semiconductor substrate, and does not transmit the light scattered from the interior of said finger.