Document imaging system with human-eye response photoptic filter

Details Document imaging system with human-eye response photoptic filter Document imaging system with human-eye response photoptic filter

1993-05-17

1995-04-18

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

250226, H01J 4014

Patent

active

054080851

ABSTRACT:
A check Sorter-Imager-Processor with two (or more) imaging sites, each lit by a beam through a fiber-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.

REFERENCES:
patent: 4592090 (1986-05-01), Curl et al.
patent: 4821114 (1989-04-01), Gebhardt
patent: 4821332 (1989-04-01), Durham
patent: 4997259 (1991-03-01), Ichimura et al.
patent: 5122657 (1992-06-01), De Bie et al.

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