Lens moving device using piezoelectric material

Details Lens moving device using piezoelectric material Lens moving device using piezoelectric material

1984-05-03

1986-07-22

Punter, William H.

Electrical generator or motor structure

Dynamoelectric

Rotary

310369, G02B 704, H01L 4104

Patent

active

046015396

ABSTRACT:
An axially movable lens holder sleeve has a drive member or members made of piezoelectric material on one or either side thereof with a bias spring member on the opposite side or in sandwiched relation. When a voltage proportional to the required amount of movement of the lens is applied to the drive member, adjustment in position of the lens is controlled.

REFERENCES:
patent: 3088370 (1963-05-01), Erbe et al.
patent: 3562563 (1971-02-01), Schafft
patent: 3915560 (1975-10-01), Levine et al.
patent: 4291958 (1981-09-01), Frank et al.
patent: 4303324 (1981-12-01), Marcus
patent: 4342935 (1982-08-01), Kallmeyer et al.

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