Recording device, reproduction device, and...

Details Recording device, reproduction device, and... Recording device, reproduction device, and...

2007-06-26

2007-06-26

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

C369S117000

Reexamination Certificate

active

10522916

ABSTRACT:
An example recording apparatus includes a pulse oscillation laser, a half mirror for splitting the pulse oscillation light of the laser into a signal light and a reference light, an optical shutter disposed in the optical path of the signal light, a beam expander for converting the signal light into a light beam of a predetermined diameter, a spatial modulator for modulating the recording data into two-dimensional image information, a Fourier Transform lens for introducing the signal light modulated by the spatial modulator onto a recording medium, mirrors for introducing the reference light onto the recording medium with a predetermined angle, a system control unit, a laser driver, a system controller, a recording medium drive mechanism, a modulator driver, a data input unit, and a data processing unit.

REFERENCES:
patent: 3697149 (1972-10-01), Van Heeckeren et al.
patent: 3865996 (1975-02-01), Kato
patent: 2001/0017836 (2001-08-01), Itoh et al.
patent: 0 945 870 (1999-09-01), None
patent: 11-317084 (1999-11-01), None
patent: 2002-123949 (2002-04-01), None

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