Optical pickup device

Details Optical pickup device Optical pickup device

2011-08-02

2011-08-02

Edun, Muhammad N (Department: 2627)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

C369S112230, C369S112010, C369S044370

Reexamination Certificate

active

07990831

ABSTRACT:
An optical pickup device includes a first light source emitting first light with a first wavelength, a second light source emitting second light with a second wavelength, a third light source emitting third light with a third wavelength, an objective lens having a step structure, the objective lens being disposed to satisfy predetermined conditions, at least one first coupling lens making the first light and the second light incident onto the objective lens as converged light, a second coupling lens making the third light incident onto the objective lens as diverging light, and a liquid crystal aberration correcting element.

REFERENCES:
patent: 7206276 (2007-04-01), Kimura et al.
patent: 7319655 (2008-01-01), Kimura
patent: 2005/0002118 (2005-01-01), Maruyama et al.
patent: 2005/0078593 (2005-04-01), Maruyama et al.
patent: 2005/0157624 (2005-07-01), Koreeda et al.
patent: 2005/0281173 (2005-12-01), Koreeda et al.
patent: 2006/0083122 (2006-04-01), Wakabayashi et al.
patent: 2006/0181978 (2006-08-01), Koreeda et al.
patent: 2008/0074976 (2008-03-01), Nishikawa et al.
patent: 9-306024 (1997-11-01), None
patent: 2004-79146 (2004-03-01), None
patent: 2006-147126 (2006-06-01), None
English language Abstract of JP 9-306024, Nov. 28, 1997.
Nakahara, “Blu-ray Disc yo Koteibu Haichigata Ekisho Shusa Hosei Soshi,” O plus E, vol. 27, No. 4, pp. 413-417, 2005.
Iwasaki et al., “New Electrode Structure of Liquid Crystal Panel for Sphere aberration correction”, Pioneer R&D, vol. 13, No. 1, pp. 34-40, Mar. 31, 2003.

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