Actuator and control system for cleaning of mirror-like objects

Details Actuator and control system for cleaning of mirror-like objects Actuator and control system for cleaning of mirror-like objects

1990-08-23

1991-06-18

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

15250R, 310324, 310330, 310359, 310369, 310316, H01L 4108

Patent

active

050251872

ABSTRACT:
An actuator and actuator control system is provided for use with a mirror-like surface and is used to remove foreign substances from the mirror-like surface. The actuator may be a piezoelectric device and the control system operates the device in a predetermined vibratory manner to remove the foreign substance.

REFERENCES:
patent: 3171683 (1965-03-01), Ludwig
patent: 3180626 (1965-04-01), Mettler
patent: 3191913 (1965-06-01), Mettler
patent: 3873947 (1975-03-01), Johnson
patent: 3904274 (1975-09-01), Feinleib et al.
patent: 3928063 (1975-12-01), King, Jr. et al.
patent: 3955545 (1976-05-01), Priegel
patent: 4352961 (1982-10-01), Kumada
patent: 4533219 (1985-08-01), Aldrich
patent: 4768256 (1988-09-01), Motoda

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