Optical pickup

Dynamic optical information storage or retrieval – Dynamic mechanism optical subsystem – Transducer carriage or actuator

Reexamination Certificate

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Details

C369S125000

Reexamination Certificate

active

07464388

ABSTRACT:
An optical pickup with improved vibration resistance and heat dissipation is mounted astride a main shaft101and a secondary shaft102. The travel of the optical pickup is adapted to be guided by the main shaft, where a secondary bearing part3adapted to slide relative to the secondary shaft102includes an overlapping sliding face32and an auxiliary overlapping face36, and a clearance δ is formed between the auxiliary overlapping face36and the secondary shaft102to improve ease of assembly. A control element41is mounted on a printed circuit board4mounted on a base member1, and the control element is overlapped with a radiator plate5. The radiator plate5is provided with a pressing piece54, and the pressing piece54is brought into elastic contact with the secondary shaft102to reliably bring the overlapping sliding face32into elastic contact with the secondary shaft102.

REFERENCES:
patent: 7191457 (2007-03-01), Saito et al.
patent: 2005/0005282 (2005-01-01), Chen
patent: 2005/0076351 (2005-04-01), Tang et al.
patent: 2005/0086677 (2005-04-01), Ochi et al.
patent: 2005/0210485 (2005-09-01), Ueda et al.
patent: 2006/0117332 (2006-06-01), Ochi et al.
patent: 07-085493 (1995-03-01), None
patent: 11-154334 (1999-06-01), None
patent: 2000-067457 (2000-03-01), None
patent: 2001-307371 (2001-11-01), None
patent: 2004-145921 (2004-05-01), None

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