Optical scanning device comprising a tiltable lens system

Details Optical scanning device comprising a tiltable lens system Optical scanning device comprising a tiltable lens system

2007-09-18

2007-09-18

Huber, Paul W. (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S044150

Reexamination Certificate

active

10144826

ABSTRACT:
An optical scanning device includes an actuator for displacing an objective lens in a first direction parallel to the optical axis of the objective lens, and in a second direction parallel to a radial direction. The actuator includes at least two electrical coils having wire portions directed parallel to the first direction for generating Lorentz forces in the second direction. Points of application of the Lorentz forces on first and second coils of the two coils are in different positions with respect to each other, viewed in a direction parallel to the first direction.

REFERENCES:
patent: 5165088 (1992-11-01), Suzuki et al.
patent: 5301175 (1994-04-01), Nakamura
patent: 5579295 (1996-11-01), Van Rosmalen

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