Beam applying method, beam applying apparatus, and optical...

Details Beam applying method, beam applying apparatus, and optical... Beam applying method, beam applying apparatus, and optical...

2011-03-22

2011-03-22

Tran, Thang V (Department: 2627)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

C369S103000, C369S112160

Reexamination Certificate

active

07911916

ABSTRACT:
A beam applying method includes the steps of: rotationally driving an optical recording medium, in which a signal is recorded and reproduced by applying a beam thereto and which has a recording layer on which the signal is recorded, a polarization element formed below the recording layer, and a reflecting film formed below the polarization element; and applying a beam to the rotating optical recording medium through a half-wavelength plate that is rotationally driven with the rotation of the optical recording medium.

REFERENCES:
patent: 2004/0165518 (2004-08-01), Horimai et al.
patent: 2003-039001 (2003-02-01), None
patent: 2005-174401 (2005-06-01), None
patent: 2006-163021 (2006-06-01), None
patent: 2006-344344 (2006-12-01), None
patent: 2007-102185 (2007-04-01), None
patent: 2005-109117 (2005-11-01), None
Japanese Office Action dated Apr. 14, 2009, for corresponding JP Patent Application 2007-129193.

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