A hologram recording device includes a light outputting unit that sequentially outputs multiple laser beams such that the laser beams are coaxially aligned, the laser beams having different wavelengths and being emitted from multiple laser beam sources, an optical system that generates a reference beam and an object beam, with which a hologram is recorded, from each of the laser beams output from the light outputting unit, and an adjusting unit that adjusts a relative position of a recording medium and a focus position of the object beam generated from each of the laser beams having different wavelengths so that the object beam is focused on a surface of the recording medium when the hologram recording device records multiple holograms in a wavelength multiplex recording by sequentially applying the object beams and the reference beams to the recording medium.

An image recording device includes a laser beam source that emits a laser beam, a splitting unit that splits the laser beam emitted from the laser beam source into two laser beams, a display device that displays images over a display area thereof divided into segments, a display controller that controls display of the display device so that images for forming a holographic stereogram are displayed on the segments of the display area and so that one of the laser beams is modulated by the images displayed on the display device to become object beams, an optical system that images the object beams on a hologram recording medium so that the object beams are superimposed one on top of another, and an irradiating unit that irradiates the hologram recording medium with, besides the object beams, the other laser beam split by the splitting unit as a reference beam.

The present disclosure relates to a device for printing dual holographic, including a plurality of lasers that represents different wavelengths, a plurality of dichroic lenses and mirrors that combine beams output from the plurality of lasers into one beam and output the combined beam as a white beam, a plurality of beam splitters that separates the white beams output through the plurality of dichroic lenses and mirrors, transmit the separated white beams to a stereogram printing device, a wavefront printing device, and a reference beam, separates a beam heading to the reference beam, and transmits the separated beam to the stereogram printing device and the wavefront printing device, and a computer that controls the stereogram printing device and the wavefront printing device so that a hologram is printed with the beam transmitted through the beam splitters.