Check imaging illumination with focus/defocus and fibre optic li

Details Check imaging illumination with focus/defocus and fibre optic li Check imaging illumination with focus/defocus and fibre optic li

1992-01-01

1994-05-17

Messinger, Michael

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250223R, 2502272, 25022723, 385119, G06K 710, G01N 904

Patent

active

053130707

ABSTRACT:
A check Sorter-Imager-Processor with two (or more) imaging sites, each lit by a beam through a fibre-optic array, with a lens focusing the beam on each array such that a shift in lens-focus reduces output light from the array--the two sites being thus "matched" in light-intensity by merely focus-adjusting these lenses.

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patent: 4460826 (1984-07-01), Pryor
patent: 4592090 (1986-05-01), Curl et al
patent: 4676592 (1987-06-01), Nishioka et al.
patent: 4721359 (1988-01-01), Nishioka et al.
patent: 4758715 (1988-07-01), Stamm
patent: 4795913 (1989-01-01), Blessing et al.
patent: 4821114 (1989-04-01), Gebhardt
patent: 4821332 (1989-04-01), Durham
patent: 4997259 (1991-03-01), Ichimura et al.

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