Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Reexamination Certificate
2004-09-03
2008-05-06
Korzuch, William (Department: 2627)
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
C369S044230, C369S112210
Reexamination Certificate
active
07369482
ABSTRACT:
It is an object of the invention to provide an aberration correcting mirror which has a small size, power saving, a low voltage, a low price and high precision. In particular, it is an object to provide a practical mirror for correcting a spherical aberration.The invention provides an aberration correcting mirror constituted by a substrate, a piezoelectric unit, a pair of electrode films interposing the piezoelectric unit therebetween, an elastic unit and an optical reflective film, wherein the substrate has a cavity portion which is schematically symmetrical about an optical axis, each of the pair of electrode films is divided into at least two parts including a first electrode and a second electrode, the first electrode being schematically symmetrical about the optical axis and the second electrode being provided to surround the first electrode, and such an electric potential as to set the directions of electric fields in the piezoelectric unit to be reverse to each other is applied to the first electrode and the second electrode.
REFERENCES:
patent: 6002661 (1999-12-01), Abe et al.
patent: 6108139 (2000-08-01), Takahashi
patent: 6496466 (2002-12-01), Lee et al.
patent: 6995897 (2006-02-01), Mushika et al.
patent: 7215476 (2007-05-01), Kitaoka et al.
patent: 7215630 (2007-05-01), Hara et al.
patent: 2002/0101646 (2002-08-01), Ide et al.
patent: 2004/0183402 (2004-09-01), Mizuyama et al.
patent: 2005/0007906 (2005-01-01), Horinouchi et al.
patent: 2007/0097836 (2007-05-01), Kurozuke et al.
patent: 06120578 (1994-04-01), None
patent: 1039122 (1998-02-01), None
patent: 10134400 (1998-05-01), None
patent: 10241201 (1998-09-01), None
patent: 200134993 (2001-02-01), None
patent: 2002279677 (2002-09-01), None
patent: 2002334463 (2002-11-01), None
patent: 200343230 (2003-02-01), None
patent: 02059674 (2002-08-01), None
U.S. Appl. No. 10/813,298, 2003.
International Search Report dated May 19, 2005.
Matsubara Shogo
Mizuyama Yosuke
Agustin Peter Vincent
Dickinson Wright PLLC
Korzuch William
Matsushita Electric - Industrial Co., Ltd.
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