OPTICAL INFORMATION RECORDING DEVICE AND OPTICAL INFORMATION REPRODUCING DEVICE

PROBLEM TO BE SOLVED: To provide an optical information recording device and an optical information reproducing device capable of performing recording/reproduction of information in the optimum state. SOLUTION: The optical information recording device has a light source emitting an optical flux, a means generating information light carrying information and reference light for recording from the optical flux emitted from the light source, a recording optical system irradiating an information recording layer with the information light and the reference light for recording from the same surface side thereof so that information is recorded by an interference pattern formed by interference between the information light and the reference light for recording in the information recording layer and a means adjusting the light quantity of at least one of the information light and the reference light for recording with which the information recording layer is irradiated. COPYRIGHT: (C)2005,JPO&NCIPI