Optical pick-up actuator

Details Optical pick-up actuator Optical pick-up actuator

2005-09-13

2005-09-13

Hindi, Nabil (Department: 2655)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S044140

Reexamination Certificate

active

06944103

ABSTRACT:
Disclosed is an optical pick-up actuator including a tilt-compensating magnetic circuit adapted to conduct a tilt compensation depending on current flowing a focusing coil attached to a lens holder maintained in a suspended state. The tilt-compensating magnetic circuit includes magnets or electromagnets for generating a tilt-compensating magnetic field. Alternatively, the tilt-compensating magnetic circuit is configured to allow focusing and tracking magnets and a tracking coil to be movable toward the outer periphery of a disk, to which the optical pick-up actuator is applied. In either configuration, the tilt-compensating magnetic circuit generates a tilt-compensating magnetic field depending on the current flowing through the focusing coil. In accordance with the optical pick-up actuator of the present invention can conduct a tilt compensation depending on a control current flowing the focusing coil at the point of time when a focusing control is required. The optical pick-up actuator also automatically traces a tilt component resulting from a run-out phenomenon occurring due to a deflection of the disk. Thus, the optical pick-up actuator has a stable control performance.

REFERENCES:
patent: 5768034 (1998-06-01), Marino

Affiliated with

Also associated with

Rating

Optical pick-up actuator 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 pick-up actuator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical pick-up actuator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3393506