Patent ID: 8130620
Filing Date: 2012-03-06
Classification: G03H,G11B

Abstract:
1. A hologram recording/reproducing device, comprising: an optical section which irradiates a holographic recording medium with an optical beam; and a control unit which controls the optical section, wherein the optical section includes wherein the control unit generates a tilt-standard reference light pixel, first and second tilt-standard signal light pixels arranged symmetrically to each other about the tilt-standard reference light pixel, and third and fourth tilt-standard signal light pixels arranged symmetrically to each other about the tilt-standard reference light pixel on a line different from a line connecting the first and second tilt-standard signal light pixels, and wherein the control unit records a first tilt-standard hologram in a region using the tilt-standard reference light pixel and the first tilt-standard signal light pixel, a second tilt-standard hologram in the same region using the tilt-standard reference light pixel and the second tilt-standard signal light pixel, a third tilt-standard hologram in the same region using the tilt-standard reference light pixel and the third tilt-standard signal light pixel, and a fourth tilt-standard hologram in the same region using the tilt-standard reference light pixel and the fourth tilt-standard signal light pixel.