Method for recording information on optical recording medium and optical recording medium on which information is recorded
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsTakeo Ohta, Kenichi Nishiuchi
Life of this patent
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Abstract
An information recording device that records information on an optical recording medium includes: a laser beam generation device for generating a pulse light with a pulse width less than 1 ns; and a mark formation device for collecting the pulse light and irradiating a recording layer in the optical recording medium with the pulse light so as to form a mark in the recording layer, whereby generation of re-crystallization regions and a variation in the position of marks can be controlled appropriately and information can be recorded on an optical recording medium at high density.
Claims21
An optical information recording device that records information on an optical recording medium, the device comprising:
- a laser beam generation device for generating a pulse light with a pulse width less than 1 ns;
- and
- a mark formation device for collecting the pulse light and irradiating a recording layer in the optical recording medium with the pulse light so as to form a mark in the recording layer.
An information recording method of recording information on an optical recording medium, the method comprising:
- generating a pulse light with a pulse width less than 1 ns;
- collecting the pulse light;
- and
- irradiating a recording layer in the optical recording medium with the pulse light so as to form a mark in the recording layer.
An optical recording medium, comprising:
- a recording layer in which a mark is formed by an irradiation of a pulse light with a pulse width less than 1 ns.
Dependencies are inferred from the claim text.