Dynamic optical information storage or retrieval – Dynamic mechanism optical subsystem – Transducer carriage or actuator
Reexamination Certificate
2006-01-17
2006-01-17
Davis, David (Department: 2652)
Dynamic optical information storage or retrieval
Dynamic mechanism optical subsystem
Transducer carriage or actuator
Reexamination Certificate
active
06988275
ABSTRACT:
The apparatus and methods of the present invention provide for a biaxial actuator, an optical pickup device, and an information optical processing device, in which the biaxial actuator is favorably mounted using a single structure. The mounting structure includes first fastening portions protruding from a bottom plate affixed to a substrate. Connecting portions are provided in the first fastening portions through first stress concentration points. The connecting portions are also provided in second fastening portions through second stress concentration points. A mounting portion is provided between the second fastening portions and yokes are formed on the bottom plate to establish a magnetic circuit. A fixing portion of the biaxial actuator is mounted on the mounting portion. By deforming each stress concentration point, a reference state of the objective lens can be determined at an arbitrary position.
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Mitsumori Koji
Yamamoto Shigekazu
Davis David
Kananen Ronald P.
Rader & Fishman & Grauer, PLLC
Sony Corporation
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