Computation of computer generated holograms

Details Computation of computer generated holograms Computation of computer generated holograms

2006-03-07

2006-03-07

Boutsikaris, Leonidas (Department: 2872)

Optical: systems and elements

Holographic system or element

For synthetically generating a hologram

C359S023000, C382S237000

Reexamination Certificate

active

07009741

ABSTRACT:
A method of computing a computer generated hologram (CGH) for use in displaying a holographic image of a replay object. The method of generating a first computer generated hologram corresponding to the desired replay object (step1); subdividing the first computer generated hologram into a plurality of blocks, each representing a sub CGH (step2); for each block or sub CGH, calculating the corresponding replay sub-image hereafter called target wavefront data set (step3); and generating for each target wavefront data set a second constrained modulation computer generated hologram wherein that second CGH is modulated within constrained values (step5); and combining the plurality of second constrained modulation computer generated holograms to provide a third complete constrained modulation computer generated hologram (step6).

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