Microfiche camera having motor control system

Details Microfiche camera having motor control system Microfiche camera having motor control system

1980-04-03

1981-09-01

Adams, Russell E.

Photocopying

Contact printing

Light boxes

355 54, G03B 100

Patent

active

042868530

ABSTRACT:
A self-developing microfiche camera for exposing a plurality of micro-image areas arranged in rows and columns on a single card-like film unit. The camera includes a system for controlling operation of an electrical motor in an exposure cycle mode during which the motor drives a barrel cam through a rotational increment to operate the shutter and index the objective lens, and in a reset cycle mode during which the motor advances the barrel cam through as many rotational increments as necessary to return the lens and barrel cam to a predetermined starting position. A shutter latching device is provided to disenable shutter operation during each reset cycle.

REFERENCES:
patent: 620036 (1899-02-01), Jenkins
patent: 3503317 (1970-03-01), Johnson
patent: 3667364 (1972-06-01), Mann
patent: 4027315 (1977-05-01), Barney
patent: 4068244 (1978-01-01), Douglas
patent: 4134675 (1979-01-01), Oosake et al.
patent: 4140381 (1979-02-01), Douglas
patent: 4174895 (1979-11-01), Fermaglich et al.
patent: 4235543 (1980-11-01), Norris
patent: 4235545 (1980-11-01), Norris

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