Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Patent
1994-03-18
1996-05-21
Psitos, Aristotelis
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
369 4421, B11B 7095
Patent
active
055196772
ABSTRACT:
An objective lens driving biaxial actuator for driving an objective lens in both a focusing direction and a tracking direction with respect to a recording medium. The biaxial actuator comprises: a movable portion for holding the objective lens; an elastic member having its one end attached to the movable portion for movably supporting the movable portion; a stationary portion fixing the other end of the elastic member; and a balancer disposed at the side of the stationary portion with respect to the objective lens and carried on the movable portion at such a distance that its clearance from the stationary portion may restrict the deformation of the elastic member within an elastic limit. A hinge is interposed between the elastic member and the movable portion for moving the objective lens in the tracking direction.
REFERENCES:
patent: 4766583 (1988-08-01), Oinoue et al.
patent: 5050964 (1991-09-01), Mori
patent: 5453881 (1995-09-01), Suzuki
EPO Search Report.
Patent Abstract of Japan, vol. 14, No. 321, Oct. 7, 1990.
Patent Abstract of Japan, vol. 11, No. 144, Dec. 5, 1987.
Patent Abstract of Japan; vol. 9, No. 137, Jun. 12, 1985.
Hirata Takatoshi
Matsumura Masashi
Shibata Keiichi
Kananen Ronald P.
Psitos Aristotelis
Sony Corporation
Tran Thang V.
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