Objective lens driving device, data recording device, and data r

Details Objective lens driving device, data recording device, and data r Objective lens driving device, data recording device, and data r

1995-11-16

1998-02-24

Levy, Stuart S.

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Having power driven transducer assembly

369 4415, G11B 7085

Patent

active

057217238

ABSTRACT:
An optical disk drive which is a data recording device or a data reproducing device having two movable members. The first movable member has two objective lenses on it. A magnetic circuit is secured to the second movable member to apply a magnetic field to the tracking coil attached to the first movable member. The first and second movable members can rotate around a shaft. The first objective lens or the second objective lens is selected and used in accordance with the type of the disk used. The device can therefore record data on or reproduce data from disk of different types. Further, since the angle at which the second movable member is inclined to the shaft remains unchanged, the device can record data on or reproduce data from a disk, without causing coma-aberration or the like, no matter whether the first object lens or the second objective lens is selected and used.

REFERENCES:
patent: 4759005 (1988-07-01), Kasahara
patent: 4766584 (1988-08-01), Sekimoto et al.
patent: 5235581 (1993-08-01), Miyagawa et al.
patent: 5381273 (1995-01-01), Goda
patent: 5444684 (1995-08-01), Yanagi et al.

Affiliated with

Also associated with

Rating

Objective lens driving device, data recording device, and data r does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Objective lens driving device, data recording device, and data r, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Objective lens driving device, data recording device, and data r will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1879261