Fingerprint comparator

Details Fingerprint comparator Fingerprint comparator

1981-10-05

1984-07-10

Haroian, Harry N.

Optics: image projectors

Plural projection paths with single light source

356393, 353 94, 353 78, G01B 908

Patent

active

044589930

ABSTRACT:
A fingerprint comparator includes a projection system including a source of light and a carrier for mounting samples of prints to be compared with an optical system for projecting the images of the samples side-by-side on a screen with one image reverted and the screen divided with the images being movable toward and from the dividing line appearing to merge and emerge from the central dividing line for a precise adjacent comparison at the dividing line. An alternate embodiment uses a split video screen and provides for remote transmission of either the record or sample print.

REFERENCES:
patent: 2365613 (1944-12-01), Wibmer et al.
patent: 2500051 (1950-03-01), Wolff, Jr.
patent: 3376782 (1968-04-01), Whitley et al.
patent: 3489494 (1970-01-01), Snider
patent: 3535030 (1970-10-01), Miller
patent: 3617120 (1971-11-01), Roka
patent: 3888593 (1975-06-01), Kempf
patent: 4065204 (1977-12-01), Lipkins
patent: 4168912 (1979-09-01), Kempf
patent: 4232968 (1980-11-01), Kempf

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