Light pickup device with center axis and light balancing...

Details Light pickup device with center axis and light balancing... Light pickup device with center axis and light balancing...

2007-10-23

2007-10-23

Psitos, Aristotelis M (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S053190

Reexamination Certificate

active

10756228

ABSTRACT:
A light pickup device includes a light projection optical system comprising a light source which emits light, and an objective lens which condenses the light on an optical disk, a light detection optical system comprising a light detector, and a condenser lens which condenses light reflected from the optical disk on the light detector, and an adjustment optical element for coinciding a center axis of an intensity distribution of the light condensed on the optical disk by the light projection optical system with an optical axis of the objective lens.

REFERENCES:
patent: 4507766 (1985-03-01), Saimi et al.
patent: 4767921 (1988-08-01), Kawasaki et al.
patent: 4933794 (1990-06-01), Gitto
patent: 5111448 (1992-05-01), Komma et al.
patent: 5172356 (1992-12-01), Kibune
patent: 5247503 (1993-09-01), Nomiyama et al.
patent: 6163409 (2000-12-01), Uchiyama et al.
patent: 6522619 (2003-02-01), Yanagisawa et al.
patent: 6633530 (2003-10-01), Takeda
patent: 7145859 (2006-12-01), Park et al.
patent: 63-050920 (1988-03-01), None
patent: 63-140426 (1988-06-01), None
patent: 63-167438 (1988-07-01), None
patent: 01-313988 (1989-12-01), None
patent: 02-005113 (1990-01-01), None
patent: 02-066733 (1990-03-01), None
patent: 02-220228 (1990-09-01), None
patent: 06-167677 (1994-06-01), None
patent: 07-334850 (1995-12-01), None
patent: 09-167351 (1997-06-01), None
patent: 11-144303 (1999-05-01), None
patent: 2001-252618 (2001-09-01), None
patent: 2002-008262 (2002-01-01), None

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