Biaxial actuator apparatus and a method for mounting and...

Details Biaxial actuator apparatus and a method for mounting and... Biaxial actuator apparatus and a method for mounting and...

2007-02-27

2007-02-27

Davis, Davis (Department: 2627)

Dynamic optical information storage or retrieval

Dynamic mechanism optical subsystem

Transducer carriage or actuator

Reexamination Certificate

active

11188903

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.

REFERENCES:
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patent: 5598397 (1997-01-01), Sim
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patent: 6342978 (2002-01-01), Nishikawa et al.
patent: 2001/0048657 (2001-12-01), Ohtsuka
patent: 2001/0050899 (2001-12-01), Ito et al.
patent: 6-52562 (1994-02-01), None
patent: 9-251653 (1997-09-01), None

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