Fingerprint identification system using a pliable optical prism

Details Fingerprint identification system using a pliable optical prism Fingerprint identification system using a pliable optical prism

1976-11-19

1978-10-17

McGraw, Vincent P.

Optics: measuring and testing

Document pattern analysis or verification

350286, G06K 908

Patent

active

041205855

ABSTRACT:
A pliable optical prism for use in an optical imaging system such as a fingerprint reader where the prism is physically contacted and the nature of the contact determines the efficiency of the device. The pliable prism deforms under applied pressure to partially mirror the topographic configuration of the source of applied pressure.

REFERENCES:
patent: 3382755 (1968-05-01), Papke
patent: 3527535 (1970-09-01), Monroe
patent: 3532426 (1970-10-01), Lemmond
patent: 3865488 (1975-02-01), Del Rio

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