Optical head for recording and reading information and...

Details Optical head for recording and reading information and... Optical head for recording and reading information and...

2007-06-26

2007-06-26

Edun, Muhammad (Department: 2627)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

C369S044230, C369S044320

Reexamination Certificate

active

10736637

ABSTRACT:
An objective lens used in an optical head having a convex lens and a chromatic aberration correction optical element wherein there is provided a positioning means that positions the center of gravity of the objective lens used in an optical head substantially on a straight line connecting supporting points for the objective lens used in an optical head.

REFERENCES:
patent: 2004/0114245 (2004-06-01), Takahashi et al.

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