Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Reexamination Certificate
2006-01-10
2006-01-10
Nguyen, Hoa T. (Department: 2652)
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
C369S120000, C369S112290
Reexamination Certificate
active
06985423
ABSTRACT:
In an optical pickup device with a defocus adjustor used for adjusting a position of a photo-sensor against an optical system, the photo-sensor is mounted on a flexible printed circuit board, and the flexible printed circuit board is fixed on a plate spring. A first end of the plate spring with the flexible printed circuit board is fixed on a fixing face of a holder. Since the fixing face of the holder is inclined and the plate spring is formed flat with no bending portion, the plate spring is warped for generating a stress when the second end of the plate spring is fixed on the holder by an adjusting screw. The position of a photo-sensing face of the photo-sensor can be fine adjusted by tightening or loosening the adjusting screw.
REFERENCES:
patent: 5050154 (1991-09-01), Shimozawa et al.
patent: 6693870 (2004-02-01), Koga et al.
patent: 63122023 (1988-05-01), None
patent: 03023527 (1991-01-01), None
patent: 04113525 (1992-04-01), None
patent: 7-235059 (1995-09-01), None
patent: 9-198689 (1997-07-01), None
patent: 2000-293879 (2000-10-01), None
Machine translation of Nakazato et al. (JP 07-235059).
Agustin Peter Vincent
Funai Electric Co. Ltd.
Nguyen Hoa T.
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