Optical imaging device

Details Optical imaging device Optical imaging device

1997-12-09

1999-07-06

Rosenberger, Richard A.

Optics: measuring and testing

Document pattern analysis or verification

382126, G06K 920

Patent

active

059203846

ABSTRACT:
An optical imaging device such as a fingerprint imager has a platen formed of a plurality of parallel prisms and a light source for illuminating a portion of the platen. An optical sensor is disposed so as to receive light from the light source reflected off a surface of the platen and directed toward the optical sensor. The platen is mounted moveable relative to the sensor so as to allow scanning of a fingertip in contact with the platen during relative motion of the platen and the sensor. Preferably, the platen is formed of a microprism structure.

REFERENCES:
patent: 4322163 (1982-03-01), Schiller
patent: 4544267 (1985-10-01), Schiller
patent: 4553837 (1985-11-01), Marcus
patent: 5289253 (1994-02-01), Costello et al.
patent: 5448649 (1995-09-01), Chen et al.
patent: 5548394 (1996-08-01), Giles et al.
patent: 5625448 (1997-04-01), Ranalli et al.
patent: 5796858 (1998-08-01), Zhou et al.

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