Spherical aberration compensation by wavelength

Details Spherical aberration compensation by wavelength Spherical aberration compensation by wavelength

2007-04-24

2007-04-24

Young, Wayne (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S053260, C369S053270

Reexamination Certificate

active

10445492

ABSTRACT:
A method for minimizing spherical aberration in an optical read/write drive caused by variances in lens thickness and laser wavelength. The method provides an economic solution that pairs objective lenses with laser diodes such that the spherical aberration caused by the objective lens is offset by the spherical aberration caused by the laser wavelength, thereby minimizing or completely canceling the overall spherical aberration.

REFERENCES:
patent: 3586412 (1971-06-01), Leith
patent: 4165917 (1979-08-01), Yamasita et al.
patent: 4711536 (1987-12-01), Kouchiwa
patent: 5004328 (1991-04-01), Suzuki et al.
patent: 5044737 (1991-09-01), Blankenbecler
patent: 5293548 (1994-03-01), Siebert
patent: 5519532 (1996-05-01), Broome
patent: 5530590 (1996-06-01), Saito
patent: 5661597 (1997-08-01), Sugawara
patent: 5701196 (1997-12-01), Nakamura
patent: 5760902 (1998-06-01), Brody
patent: 5777719 (1998-07-01), Williams et al.
patent: 6259512 (2001-07-01), Mizouchi
patent: 6338559 (2002-01-01), Williams et al.
patent: 6350509 (2002-02-01), Sada et al.
patent: 6373807 (2002-04-01), Ohtaki et al.
patent: 6937544 (2005-08-01), Takehara et al.
patent: 2002/0001071 (2002-01-01), Nomura et al.
patent: 2002/0027707 (2002-03-01), Ono
patent: 2002/0034018 (2002-03-01), Hiraga
patent: 2002/0089760 (2002-07-01), Yamaguchi
patent: 2002/0105617 (2002-08-01), Norrby et al.
patent: 2004/0196766 (2004-10-01), Tadano
patent: 405019162 (1993-01-01), None
patent: 6-160721 (1994-06-01), None
patent: 2002-90262 (2002-03-01), None
patent: 2002-208171 (2002-07-01), None
patent: 2002208171 (2002-07-01), None
English translation of JP 2002-208171.

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