Optical imaging device

Details Optical imaging device Optical imaging device

1996-12-04

1999-01-12

Allen, Stephone

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

250216, 250556, 382127, G01B 11124

Patent

active

058594205

ABSTRACT:
An optical imaging device such as a fingerprint imager or a CCD camera, has a reduced size due to the provision of multiple lenses which are associated with respective CCDs. The optical path between the lenses and the CCDs is shortened. In a fingerprint version of the device, a staircase-shaped prism is advantageously used in combination with the multiple lens and multiple CCD arrangement. An alignment means is provided to facilitate the reconstructing the image out of partial images created by separate CCDs.

REFERENCES:
patent: 3875420 (1975-04-01), Ryden et al.
patent: 4695716 (1987-09-01), Tandon et al.
patent: 5432334 (1995-07-01), Nelson et al.
patent: 5627363 (1997-05-01), Paxman et al.

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