Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Patent
1991-06-28
1993-08-17
Sniezek, Andrew L.
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
369 4423, G11B 700
Patent
active
052375579
ABSTRACT:
In an optical head, a light beam emitted from a semiconductor laser is guided to a carrier through a collimator lens and a beam splitter. An objective lens movable along an optical axis and a mirror having a oval reflecting surface are mounted on a carrier which is movable along a radial direction of an optical disk. The guided light beam is reflected from the mirror to the objective lens and is converged on the optical disk by the objective lens. The rear surface of the mirror is bonded to an adjusting member on a straight line which pass through the center gravity of the mirror and extends along the movable direction of the carrier.
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Kasahara Akihiro
Saito Hiroshi
Yamada Akira
Yamasaki Hideo
Hindi Nabil
Kabushiki Kaisha Toshiba
Sniezek Andrew L.
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