Hologram reproducing apparatus and reproducing apparatus and method, and a holographic implementation implemented

TECHNICAL FIELD The present invention relates in particular to a hologram reproducing apparatus, a hologram reproducing method, a hologram and a hologram for device implementation. The holographic reproducing apparatus comprising: a photorefractive crystal, are recorded in a plurality of different angles with a holographic image; a light source, providing a plurality of different incident angles to the reproducing light from the photorefractive crystal; the formed hologram reproducing light the same frequency, and the optical path of the reference light when an image. The present invention provides a hologram reproducing apparatus using a plurality of different incident angles to the reproducing light from the photorefractive crystal is irradiated photorefractive crystal, since the photorefractive crystal at different angles are recorded holographic image, thus, each may be a non-interfering holographic image display at different angles, so that the viewer can be observed in multiple orientations photorefractive crystal hologram recorded, solves the problem of viewing angle only in the holographic reproducing process.