Method of automatically adjusting a picture reproducing apparatus
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United States of America Patent
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Feb 2, 1982
Grant Date -
N/A
app pub date -
Dec 26, 1979
filing date -
Jan 11, 1979
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of adjusting a picture reproducing apparatus such as for instance a camera, which comprises an original plane, an objective plane, and a picture plane, by means of driving means in the form of direct-current motors. The motors are controlled by means of voltage pulses, each motor being stopped after each supply of pulses, and the width of the pulses being regulated in response to the voltage across the motor in question. The direct-current motor thereby replaces a stepping motor.
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