Computer-assisted holographic display apparatus

Optical: systems and elements – Holographic system or element – For synthetically generating a hologram

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Details

359900, 364525, G03H 108, G03H 104

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active

056686480

ABSTRACT:
A computer-assisted holographic-display apparatus comprises a diffraction image generator which receives an input image signal representing an object and computes corresponding diffraction pattern with a first sampling density. An interpolation processor is connected to the diffraction image generator via an intermediate page memory. The interpolation processor subjects the diffraction pattern to the interpolation process to create an interpolated diffraction pattern with an increased second sampling density. An interference pattern generator is connected to the interpolation processor to compute an interference caused pattern between the interpolated diffraction pattern and a reference wave by converting amplitude and phase distributions of the input image signal into the intensity distribution. The interference pattern is displayed on a previously selected displaying device.

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