Driving device for objective lens

Details Driving device for objective lens Driving device for objective lens

1993-03-29

1995-04-18

Psitos, Aristotelis

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369244, 359824, G11B 700

Patent

active

054084512

ABSTRACT:
To provide a driving device for an objective lens that has a high driving sensitivity and superior driving frequency characteristics.
The present invention relates to a device for driving the objective lens (1) of an optical head that uses a device for recording information on an optical information recording medium, and for reproducing information therefrom, by irradiating a beam of light thereon while positioning and focusing the light with respect to an information track on the optical information recording medium. The device has a loose linkage member which supports an objective lens within a cylindrical member and comprises the cylindrical member (14 ) and a cylindrical hole portion (19 ) into which the cylindrical member is inserted so as to face the cylindrical hole with an air gap therebetween and with the axes thereof oriented vertically, and the driving force generated by a tracking coil (3 ) is transmitted through this loose linkage member to the objective lens.

REFERENCES:
patent: 4547871 (1985-10-01), Sugiyama et al.
patent: 4568142 (1986-02-01), Iguma
patent: 4633456 (1986-12-01), Luecke
patent: 4767187 (1988-08-01), Gijzen et al.
patent: 4813033 (1989-03-01), Baasch et al.
patent: 5018836 (1991-05-01), Noda et al.
patent: 5140471 (1992-08-01), Kasahara
patent: 5144607 (1992-09-01), Ishida et al.
patent: 5243524 (1993-09-01), Kang
patent: 5264968 (1993-11-01), Masunaga

Affiliated with

Also associated with

Rating

Driving device for objective lens does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Driving device for objective lens, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Driving device for objective lens will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-71186