Object lens for an infinite-type optical pickup, optical...

Details Object lens for an infinite-type optical pickup, optical... Object lens for an infinite-type optical pickup, optical...

2007-09-25

2007-09-25

Psitos, A M (Department: 2627)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

C359S719000

Reexamination Certificate

active

10263056

ABSTRACT:
As an object lens for an optical pickup, applied is a single-lens and both-side-convex configuration is applied. Further, specific conditional formulas are created with respect to a particular numerical aperture NA, for a paraxial curvature radius R1 on the surface on the light source side; the working distance WD, the refractive index nd with respect to the d-line, and the focal length f. Furthermore, specific conditional formulas are created for the refractive index nd with respect to the d-line and the Abbe's number νd.

REFERENCES:
patent: 6430137 (2002-08-01), Saimi et al.
patent: 6545958 (2003-04-01), Hirai et al.
patent: 6590717 (2003-07-01), Sasano et al.
patent: 6636366 (2003-10-01), Itonaga
patent: 6661750 (2003-12-01), Saimi et al.
patent: 6690500 (2004-02-01), Ogasawara et al.
patent: 6744568 (2004-06-01), Kitamura et al.
patent: 6856584 (2005-02-01), Saimi et al.
patent: 6876501 (2005-04-01), Kimura et al.
patent: 2001/0015939 (2001-08-01), Kubo
patent: 2002/0012313 (2002-01-01), Kimura et al.
patent: 2002/0093902 (2002-07-01), Hirai et al.
patent: 2002/0176332 (2002-11-01), Saimi et al.
patent: 2003/0086353 (2003-05-01), Chung et al.
patent: 2004/0090882 (2004-05-01), Saimi et al.
patent: 10-123410 (1996-10-01), None
patent: 11202149 (1998-01-01), None
patent: 11203711 (1998-08-01), None
patent: 2001083410 (1999-09-01), None
patent: 2000-155979 (2000-06-01), None
patent: 2001324673 (2000-08-01), None
patent: 2001-297471 (2001-10-01), None
patent: 2001-324673 (2001-11-01), None

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