Scanner with a wing-shaped fluorescent tube housing and dual-fac

Details Scanner with a wing-shaped fluorescent tube housing and dual-fac Scanner with a wing-shaped fluorescent tube housing and dual-fac

1993-11-18

1995-05-02

Allen, Stephone B.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

235472, H01J 314, H01J 516

Patent

active

054122058

ABSTRACT:
A hand scanner employs either uniformly or variably frosted scan windows to control illumination. For scanning color documents including books and magazines, a hand scanner employs a fluorescent tube mounted a certain distance above the lower surface of the scanner housing. At the fluorescent tube ends, corresponding to the illumination "dead space" of the fluorescent tube, the underlying portion of the scanner housing is recessed towards the tube.

REFERENCES:
patent: 4300123 (1981-11-01), McMillin et al.
patent: 4794241 (1988-12-01), Carsner et al.
patent: 5233171 (1993-08-01), Baldwin

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