Optical head unit

Details Optical head unit Optical head unit

1988-05-27

1990-05-01

Stephan, Steven L.

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Having power driven transducer assembly

369244, 2502015, 350247, G11B 712, G02B 702

Patent

active

049224778

ABSTRACT:
In an optical head unit, a magnetic circuit is provided on the chassis base of a housing in such a manner that it extends parallel to a radial direction of a disk. A head base is provided over the magnetic circuit in such a manner that it can be reciprocated in the radial direction of the disk. An objective lens holder is supported by the head base in such a manner that the objective lens holder is swingable in the radial direction of the disk through an elastic supporting member such as an elastic hinge and in a focusing direction perpendicular to the surface of the disk through an elastic supporting member such as a leaf spring. A head feeding coil secured to the head base and a focusing coil and a tracking coil mounted on the objective lens holder are coupled to the magnetic circuit in such a manner that they are movable in the radial direction of the disk.

REFERENCES:
patent: 4570249 (1986-02-01), Malissin et al.
patent: 4740946 (1988-04-01), Yumura et al.
patent: 4766583 (1988-08-01), Oinoue et al.
patent: 4798447 (1989-01-01), Jansen et al.
patent: 4823219 (1989-04-01), Ueda et al.

Affiliated with

Also associated with

Rating

Optical head unit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical head unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical head unit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-834970