THREE DIMENSIONAL ANGLE DIVIDING DEVICE USING A STEPPING MIRROR IN HOLOGRAPHIC DISC

摘要

PURPOSE: A 3D angle diving device of a holographic disk is provided to maximize storage capacity per area by controlling a mirror to three dimensional directions. CONSTITUTION: A 3D angle diving device of a holographic disk includes a mirror part(8). The mirror part is composed of a mirror and a mirror controlling unit. The mirror part refracts a reference light(7). The reference light is reflected to the mirror and is radiated to the disk after passing through a first and a second lens(9,10). The mirror controlling unit is combined at the lower part of the mirror. The mirror controlling unit controls the mirror by 3D angular.