Optical pickup

Details Optical pickup Optical pickup

2007-08-28

2010-12-14

Haley, Joseph (Department: 2627)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

Reexamination Certificate

active

07852737

ABSTRACT:
An optical pickup includes a first objective lens, a second objective lens having a numerical aperture different from that of the first objective lens, and an objective lens holder. The first objective lens is attached to the objective lens holder via a spacer that has a cylindrical shape and is provided with a lens receiving portion of a stepped shape for receiving the first objective lens, a protruding portion having cushioning properties that protrudes from the upper surface, and a salient portion having a spherical shape formed at the lower surface. The protruding portion is formed so that a tip thereof is closer to an optical disc medium than any other part of the objective lens holder.

REFERENCES:
patent: 7352517 (2008-04-01), Kimura
patent: 2005/0007906 (2005-01-01), Horinouchi et al.
patent: 2006/0072210 (2006-04-01), Chang
patent: 2007/0014205 (2007-01-01), Inui
patent: 1802700 (2006-07-01), None
patent: 05-101429 (1993-04-01), None
patent: 07-220286 (1995-08-01), None
patent: 10-11765 (1998-01-01), None
patent: 2001-004891 (2001-01-01), None
patent: 2001-67700 (2001-03-01), None
patent: 2002-269790 (2002-09-01), None
patent: 2006-019001 (2006-01-01), None

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4159731