Optical head and optical disc device provided therewith

Details Optical head and optical disc device provided therewith Optical head and optical disc device provided therewith

2006-03-03

2010-02-23

Tran, Thang V (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

Reexamination Certificate

active

07668048

ABSTRACT:
In an optical head according to the present invention, an act base on which an objective lens is arranged is formed in a rectangular shape with through holes formed in four corners thereof. A base on which a collimating lens is arranged has projections to engage with the through holes in correspondence with the through holes when the act base is arranged. With the through holes of the act base engaged with the projections of the base, an adhesive is injected to the through holes to thereby fix the act base to the base. This improves the accuracy in bonding between the base and the act base, and permits laser light of a more stable intensity accordingly to be irradiated to the optical disc, thus permitting suppressing failure involved in data recording or reading.

REFERENCES:
patent: 7206273 (2007-04-01), Sogawa et al.
patent: 2002/0021631 (2002-02-01), Yokohama et al.
patent: 2004/0081062 (2004-04-01), Netsu et al.
patent: 2004/0095869 (2004-05-01), Yoshizawa
patent: 2004/0103421 (2004-05-01), Nakata et al.
patent: 2005/0015790 (2005-01-01), Yoshizawa
patent: 2005/0141358 (2005-06-01), Kim
patent: 0649130 (1995-04-01), None
patent: 2002042373 (2002-02-01), None
patent: A-2002-042373 (2002-02-01), None

Affiliated with

Also associated with

Rating

Optical head and optical disc device provided therewith 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 head and optical disc device provided therewith, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical head and optical disc device provided therewith will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4177677