Hologram recording method using beam with very large incident angle, hologram reproduction apparatus using holographic reflector and sologram reproduction method using the same, and flat display element apparatus using holographic reflector

An apparatus for reproducing a hologram, comprising:

• a light source for emitting light;
• a holographic reflector for receiving, as a reference beam, a beam emitted from the light source and reflecting the reference beam therefrom to generate a reconstructed beam;
• an adjustor for adjusting an irradiation angle of the reference beam directed to the holographic reflector from the light source;
• and
• a hologram for receiving, as a reference beam, the reconstructed beam reflected by the holographic reflector.

A method of reproducing a hologram, comprising the steps of:

• irradiating a beam emitted from a light source as a reference beam to a holographic reflector;
• reflecting the reference beam illuminated to the holographic reflector therefrom to generate a reconstructed beam;
• and
• allowing the generated reconstructed beam as a reference beam to pass through a hologram to reproduce the hologram.

A flat display element apparatus, comprising:

• a light source for emitting light;
• a holographic reflector for receiving, as a reference beam, a beam emitted from the light source and reflecting the reference beam therefrom to generate a reconstructed beam;
• an adjustor for adjusting an irradiation angle of the reference beam directed to the holographic reflector from the light source;
• and
• a flat display element for receiving, as a reference beam, the reconstructed beam reflected by the holographic reflector.