Optical system control mechanism

Details Optical system control mechanism Optical system control mechanism

1991-07-05

1992-12-01

Gellner, Michael L.

Photocopying

Projection printing and copying cameras

Original moves continuously

355 56, 355235, 318687, G03B 2750

Patent

active

051683059

ABSTRACT:
A control mechanism for an optical system wherein a scanning operation by an optical system is controlled by the amount and the direction of an electric current supplied to an optical system drive motor; and wherein a current limiter value modifying means for changing a current limiter value which stipulates a maximum current value for the optical system drive motor is provided which sets a smaller current limiter value during control of a return scan by the optical system than the current limiter value set during control of a forward scan by the optical system.

REFERENCES:
patent: 3767302 (1973-10-01), Roberts
patent: 4461984 (1984-07-01), Whitaker et al.

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