FIELD: holography.
SUBSTANCE: invention relates to methods and devices for holography capable of performing multiplex recording with high density. The device for recording multiplex holograms comprises a coherent radiation source, a reference channel, an object channel, spatial filters and a hologram blank holder. The object channel is equipped with at least two spatial filters and is configured to form and subsequently combine at least two diverging radiation beams with a spherical wavefront and different focal lengths corresponding to different lengths of optical arms from the specified spatial filters of the object channel to the hologram blank holder.
EFFECT: expanding functionality of the recorded holograms, in particular, the fields of view while maintaining a virtual image, as well as simplifying and lightening the projection system in which they can be used.
11 cl, 9 dwg
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