Optical pick-up unit

Details Optical pick-up unit Optical pick-up unit

1988-08-22

1991-04-16

Arnold, Bruce Y.

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

350247, 369 4415, G02B 702

Patent

active

050077120

ABSTRACT:
In an optical pick-up unit, there is provided with a structure for supporting a holder holding at least an objective lens through a spring support assembly so that said holder is movable in both of a focusing direction and a tracking direction, carried on a carriage capable of traveling at a high speed in the tracking direction, a spring constant of the spring support assembly is so set as to be larger in the tracking direction than in the focusing direction, whereby an amount of a positioning error of the objective lens produced in the tracking direction when the carriage is driven at a high speed is reduced. As a result, by the thus reduced amount of the positioning error of the objective lens, the optical pick-up unit is improved in access time in comparison with the conventional optical pick-up unit.

REFERENCES:
patent: 4592037 (1986-05-01), Ohnuki
patent: 4596444 (1986-06-01), Ushida
patent: 4596448 (1986-06-01), Kikuchi
patent: 4679904 (1987-07-01), Kurihara
patent: 4720088 (1988-01-01), Tamura
patent: 4750164 (1988-06-01), Nose
patent: 4767187 (1988-08-01), Gijzen et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-416991