Dynamic optical information storage or retrieval – Particular cabinet structure for optical media – Environmental control
Reexamination Certificate
2006-12-05
2006-12-05
Chen, Tianjie (Department: 2627)
Dynamic optical information storage or retrieval
Particular cabinet structure for optical media
Environmental control
Reexamination Certificate
active
07146621
ABSTRACT:
An inventive optical pickup includes: a base; a movable part; a fixed part; and a first yoke. The movable part, fixed part and first yoke are provided over the base. The movable part is provided with: a hologram element; a package equipped with a laser/photodetectors integrated element in which a semiconductor laser and photodetectors are integrated; and an objective lens. A magnet is provided on each of second yokes provided on the base, and a heat dissipating medium is provided in a gap between a package metal section of the package and another magnet.
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Onozawa Kazutoshi
Ueda Daisuke
Chen Tianjie
Matsushita Electric - Industrial Co., Ltd.
McDermott Will & Emery LLP
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