Linear motor actuator for moving an optical read/write head

Details Linear motor actuator for moving an optical read/write head Linear motor actuator for moving an optical read/write head

1989-03-09

1991-05-21

Richardson, Robert L.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

360106, G11B 700

Patent

active

050181220

ABSTRACT:
An electrodynamic actuator for optical storage systems comprising an electromechanical actuating device which is constructed to move an optical write and/or read unit into write or read operating positions relative to a storage medium, comprising a linear motor which comprises spaced apart parallel stator sections, which are constituted by rod-shaped stator iron elements carrying induction coils which are stationary relative to the stator, a permanent magnet being arranged between said stator sections and being guided to be longitudinally movable in a direction of translation between the axial ends of the stator sections. The permanent magnet carries the optical system of the optical unit and has a magnetic field which is oriented perpendicularly to the direction of translation and parallel to a central plane in which the stator irons, the induction coils and the permanent magnet itself are arranged. The permanent magnet is movable between the stator sections relative to the common central plane, a plurality of induction coils are arranged after each other in the longitudinal direction on each rod-shaped stator iron element, and can be switched into and out of circuit separately, and conductor bundles extend parallel to the stator sections between the permanent magnet and the two stator sections and are combined at the axial ends of the stator sections to form one or more focussing coils.

REFERENCES:
patent: 4396966 (1983-08-01), Scranton et al.

Affiliated with

Also associated with

Rating

Linear motor actuator for moving an optical read/write head does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Linear motor actuator for moving an optical read/write head, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Linear motor actuator for moving an optical read/write head will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-244203