| 摘要 |
The purpose of the present invention is to provide an optical information device and an optical information processing method which can perform high-speed and accurate positioning. One example of a solution is an optical information device which reproduces information from an optical information recording medium on which interference patterns between signal light and reference light are recorded as a hologram, and/or records information on an optical information recording medium, said optical information device being provided with: an optical system which emits an optical beam; an aperture unit which passes at least a portion of reproduced light acquired when the optical beam from the optical system is radiated onto the optical information recording medium; a first detection unit which detects at least a portion of the reproduced light; a second detection unit which detects the position of the aperture unit; and a control unit which, on the basis of a first signal acquired from the first detection unit and a second signal acquired from the second detection unit, controls the position of the aperture unit. |
