Optical disc drive having a movable aberration correcting lens

Details Optical disc drive having a movable aberration correcting lens Optical disc drive having a movable aberration correcting lens

2007-10-30

2007-10-30

Patel, Gautam R. (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S112230

Reexamination Certificate

active

10669434

ABSTRACT:
An optical disc drive includes an optical head having a stationary portion and a movable portion. The movable portion supports an objective lens for converging a beam emitted from the stationary portion on an optical disc. The movable portion moves radially across an optical disc in order to irradiate the beam on a desired track of the optical disc. The optical disc drive is further provided with an aberration correcting lens that corrects aberration caused by the objective lens. The aberration correcting lens is mounted on the movable portion so as to be movable in a direction substantially orthogonal to a movable direction of the movable portion, which may parallel or perpendicular to the optical disc. The aberration correcting lens is moved in accordance with a variation of the aberration caused by the objective lens.

REFERENCES:
patent: 5161040 (1992-11-01), Yokoyama et al.
patent: 5600494 (1997-02-01), Kubo et al.
patent: 6418108 (2002-07-01), Ueda et al.
patent: 6667943 (2003-12-01), Maruyama et al.
patent: 6791934 (2004-09-01), Shimano et al.
patent: 6944104 (2005-09-01), Tanase et al.
patent: 2002/0093744 (2002-07-01), Yamamoto et al.
patent: 2003/0021219 (2003-01-01), Nagai
patent: 2003/0152014 (2003-08-01), Maruyama
patent: 2002 304763 (2002-10-01), None
patent: 2002 334476 (2002-11-01), None

Affiliated with

Also associated with

Rating

Optical disc drive having a movable aberration correcting 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 Optical disc drive having a movable aberration correcting lens, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical disc drive having a movable aberration correcting lens will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3865473