Focussing lens operating device

Details Focussing lens operating device Focussing lens operating device

1982-09-10

1985-04-16

Punter, William H.

G02B 711

Patent

active

045112126

ABSTRACT:
An optical focussing device for an optical information storage system. A hollow cylindrical holder carries a lens at its upper end. The holder is connected to a frame by two thin plates adjacent each other near the upper end and by one thin plate at a lower position. A vibration diminution element is interposed between the upper pair of plates. Each plate is circular with a central opening and several scroll shaped cuts extending from the opening toward the outside edge.

REFERENCES:
patent: 4280215 (1981-07-01), Okano
patent: 4437177 (1984-03-01), Watabe et al.

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