Patent ID: 7538921
Filing Date: 2009-05-26
Classification: G03H,G11B

Abstract:
1. A hologram reproducing apparatus for reproducing information recorded in a plurality of holograms that are two-dimensionally arranged on a recording medium, the apparatus comprising: a light source for emitting light into the holograms; a light-receiving element for receiving reflected light beams exiting from the holograms; and a movable mirror unit disposed at a position such as to oppose the light source, the movable mirror unit including: wherein the holograms are provided such that the reflected light beam exits from each hologram toward the light-receiving element, wherein the angle of the reflecting mirror is changed by the driving unit so that the incident light enters the holograms, the incident light reaching a different hologram at a different position on the recording medium as the angle of the reflecting mirror changes, and wherein the reflecting mirror rotates around two axes orthogonal to the light from the light source.