DEVICE FOR MULTIPLEXING AN ANGULAR OF A HOLOGRAM DATA STORAGE

摘要

Disclosed is a storage angle multiplexing device for hologram data storage having an angular multiplexing device having a high response speed instead of a precision rotating device constituting a storage device for storing hologram data. A reflector reflecting the laser beam applied from the laser beam generating unit at a predetermined angle is installed on the upper surface of the rotating plate, and the rotating plate rotates at a constant speed by the rotating motor so that the reflecting mirror rotates at the constant speed with the rotation of the rotating motor. do. The rotating plate is detected by the rotation angle sensor and applied to the microcomputer, and the microcomputer controls the operation of the laser beam generator according to a signal applied from the rotation angle sensor to intercept the irradiation of the laser beam according to the rotational position of the reflector. Done. Therefore, since the irradiation of the laser beam is interrupted by the control of the microcomputer according to the rotational position of the reflecting mirror fixed to the upper surface of the rotating plate, the laser beam can be precisely irradiated to the desired position of the hologram recording element.