Optical pick-up capable of eliminating stray beams

Details Optical pick-up capable of eliminating stray beams Optical pick-up capable of eliminating stray beams

2011-01-25

2011-01-25

Dinh, Tan X (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S112160

Reexamination Certificate

active

07876648

ABSTRACT:
An optical element is disposed on an optical path between a beam branching element and a photodetector. The optical element is disposed at a focal position of a stray light beam reflected by a recording layer except a target recording layer, and shields or attenuates the light beam in a region where the stray light beam converges.

REFERENCES:
patent: 6125087 (2000-09-01), Ohnishi et al.
patent: 6208610 (2001-03-01), Kawakami et al.
patent: 6928035 (2005-08-01), Komma et al.
patent: 7236443 (2007-06-01), Martynov et al.
patent: 2004/0165518 (2004-08-01), Horimai et al.
patent: 2007/0104072 (2007-05-01), Ogata
patent: 2008/0101202 (2008-05-01), Nishimoto et al.
patent: 2010/0135143 (2010-06-01), Ogata
patent: 2005-063595 (2005-03-01), None
patent: 2005-63595 (2005-03-01), None
patent: 2006-260669 (2006-09-01), None
patent: 2006-260669 (2006-09-01), None
patent: 2007-141357 (2007-06-01), None

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