Optical element, optical head, optical recording reproducing...

Details Optical element, optical head, optical recording reproducing... Optical element, optical head, optical recording reproducing...

2006-01-17

2006-01-17

Ben, Loha (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

C359S245000, C359S279000, C359S253000, C359S323000, C369S112020

Reexamination Certificate

active

06987598

ABSTRACT:
The invention presents an optical element with which an optical head can be configured, in which there is little deterioration of the correctional effect when the objective lens shifts, as well as an optical head and an optical recording/reproducing apparatus using such an optical element. The invention also presents a novel optical recording/reproducing apparatus and optical recording/reproducing method. The optical element, includes a first voltage application electrode13, a first opposing electrode17arranged in opposition to the first voltage application electrode13, and a first phase changing layer15arranged between the first voltage application electrode13and the first opposing electrode17. By changing a voltage between the first voltage application electrode13and the first opposing electrode17, a phase that converts plane waves into spherical waves is imparted on light that is incident on the first phase changing layer15.

REFERENCES:
patent: 3813142 (1974-05-01), Buhrer
patent: 4817074 (1989-03-01), Yamanaka
patent: 4937539 (1990-06-01), Grinberg et al.
patent: 5093747 (1992-03-01), Dorschner
patent: 5212583 (1993-05-01), Vali et al.
patent: 5471339 (1995-11-01), Ise et al.
patent: 5828648 (1998-10-01), Takasu et al.
patent: 5846626 (1998-12-01), Kashiwagi et al.
patent: 5880872 (1999-03-01), Udaka
patent: 5943159 (1999-08-01), Zhu
patent: 5972459 (1999-10-01), Kawakubo et al.
patent: 6115336 (2000-09-01), Okada
patent: 6172957 (2001-01-01), Ogasawara
patent: 6175548 (2001-01-01), Kashiwagi
patent: 6192022 (2001-02-01), Hendriks et al.
patent: 6246656 (2001-06-01), Kawakubo et al.
patent: 6430139 (2002-08-01), Yoo et al.
patent: 6480454 (2002-11-01), Wada et al.
patent: 6690500 (2004-02-01), Ogasawara et al.
patent: 6747781 (2004-06-01), Trisnadi
patent: 6778246 (2004-08-01), Sun et al.
patent: 6785035 (2004-08-01), Uematsu et al.
patent: 2001/0012257 (2001-08-01), Suzuki et al.
patent: 0 565 381 (1993-10-01), None
patent: 0 883 115 (1998-12-01), None
patent: 1 011 009 (2000-06-01), None
patent: 1 043 615 (2000-10-01), None
patent: 6-27322 (1994-02-01), None
patent: 8-235638 (1996-09-01), None
patent: 8-315423 (1996-11-01), None
patent: 9-212917 (1997-08-01), None
patent: 10-162432 (1998-06-01), None
patent: 10-222870 (1998-08-01), None
patent: 10-269611 (1998-10-01), None
patent: 10-334575 (1998-12-01), None
patent: 2000-131603 (2000-05-01), None
patent: 2000-171346 (2000-06-01), None
patent: 2000-235727 (2000-08-01), None
patent: 2001-084631 (2001-03-01), None
patent: 2001-143303 (2001-05-01), None

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