Optical axis shift correcting device and method, and...

Details Optical axis shift correcting device and method, and... Optical axis shift correcting device and method, and...

2011-07-19

2011-07-19

Chow, Van N (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S053340, C369S053200

Reexamination Certificate

active

07983121

ABSTRACT:
An optical axis shift correcting device is provided in an optical information device including an irradiation element for applying a laser, an optical system for guiding a laser applied to an optical disc having a recording track, and a light reception element for receiving the light from the optical disc generated by the guided laser via the optical system. The optical axis shift correcting device includes a jitter acquisition element, an optical axis modification element modifying the direction of the optical axis with respect to the light reception element, and a control element controlling the optical axis modification element to reduce the shift when the acquired jitter amount exceeds a predetermined threshold value. The optical axis shift correcting device thus corrects the optical axis light shift on the surface of the light reception element with respect to the radial direction of the optical disc set in the optical information device.

REFERENCES:
patent: 5612939 (1997-03-01), Ueki et al.
patent: 5682372 (1997-10-01), Yamakawa et al.
patent: 5808989 (1998-09-01), Ueki et al.
patent: 8 203107 (1996-08-01), None
patent: 11-025473 (1999-01-01), None
patent: 2000-149295 (2000-05-01), None
patent: 2005-129178 (2005-05-01), None

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