Actuator for use in pickup device in reducing lens distortion

Details Actuator for use in pickup device in reducing lens distortion Actuator for use in pickup device in reducing lens distortion

2007-10-23

2007-10-23

Patel, Gautam R. (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S044220, C359S819000

Reexamination Certificate

active

10699836

ABSTRACT:
Provided is an actuator for use in a pickup device, which can improve the quality of the pickup device by reducing a lens distortion even when the frequency of an electromagnetic drive rises beyond a servo band and causes resonance of a lens holder. An adhesive layer (11) is formed between an outer peripheral portion (6A) of an objective lens (6) and a lens holder (4). This adhesive layer (11) has a sufficient thickness dimension enough to absorb deformation of the lens holder (4) even when the lens holder (4) is deformed due to resonance. Even when the frequency at which an electromagnetic drive (9) operates rises beyond the servo band and causes resonance of the lens holder (4), the adhesive layer (11) functions as a buffer so that deformation of the lens holder (4) is less transmitted to the objective lens (6).

REFERENCES:
patent: 4660190 (1987-04-01), Fujii et al.
patent: 5200940 (1993-04-01), Goto et al.
patent: 5272569 (1993-12-01), White et al.
patent: 5523891 (1996-06-01), Fujisawa
patent: 5663843 (1997-09-01), Ezawa et al.
patent: 5781351 (1998-07-01), Murakami et al.
patent: 5909323 (1999-06-01), Blake et al.
patent: 6021108 (2000-02-01), Arai et al.
patent: 6342979 (2002-01-01), Hori
patent: 6480346 (2002-11-01), Funakoshi
patent: 2002/0041563 (2002-04-01), Shinozuka et al.
patent: 2002/0141323 (2002-10-01), Horita et al.
patent: 2003/0179469 (2003-09-01), Maeda et al.
patent: 1 024 483 (2000-08-01), None
patent: 03292643 (1991-12-01), None
patent: 11-110800 (1999-04-01), None
European Search Report dated Sep. 6, 2005.

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