Document-imaging illumination arrangements with intensity with a

Details Document-imaging illumination arrangements with intensity with a Document-imaging illumination arrangements with intensity with a

1991-02-07

1992-02-18

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

25022724, 250223R, G06K 710, G01N 904

Patent

active

050897136

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: 4326258 (1982-04-01), de la Guardia
patent: 4460826 (1984-07-01), Pryor
patent: 4592090 (1986-05-01), Curl et al.
patent: 4749250 (1988-06-01), Carter
patent: 4758715 (1988-07-01), Stamm
patent: 4795913 (1989-01-01), Blessing et al.
patent: 4821332 (1989-04-01), Durham
patent: 4997259 (1991-03-01), Ichimura et al.

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