Torque while turn-around scan mirror assembly

Details Torque while turn-around scan mirror assembly Torque while turn-around scan mirror assembly

1975-12-31

1977-09-13

Corbin, John K.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 83, G02B 2717

Patent

active

040477924

ABSTRACT:
A scan mirror assembly wherein the scan mirror performs near-linear cyclic two-way scans. During the useful portion of each scan half-cycle, the mirror is acted on only by the torque of the mounting flexural pivots and at turn-around most of the rotational energy of the mirror is returned thereto by a leaf spring bumper arrangement. A clock controlled "closed loop" torquer operates only during the turn-around period to provide for energy losses by adding that amount of energy required to maintain a scan rate equal to the clock rate.

REFERENCES:
patent: 3386786 (1968-06-01), Kaisler et al.
patent: 3532408 (1970-10-01), Dostal
patent: 3671766 (1972-06-01), Howe
patent: 3734591 (1973-05-01), Howe
patent: 3883737 (1975-05-01), Throssell et al.
patent: 3921045 (1975-11-01), Reich et al.
patent: 3952217 (1976-04-01), Rawlings

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