Patent ID: 8553302
Filing Date: 2013-10-08
Classification: G03H

Abstract:
1. A method for encoding computer-generated holograms into pixelated light modulators, each light modulator having an encoding surface that includes a pixel matrix whose pixels have a certain pixel shape and pixel transparency, comprising the steps of: creating an encoding region by extending a pyramidal body with a virtual observer window localized in a Fourier plane of the light modulator as a defined visibility region and with an object point of an object as a peak beyond the object point and projecting onto the encoding surface, and holographically encoding the object point as a sub-hologram, multiplying each individual sub-hologram with a correction function, wherein the correction function is a virtual-observer-window-specific reciprocal of the transform of the pixel shape and pixel transparency and is projected into a hologram plane, adding the corrected sub-holograms to form an entire hologram, encoding the entire hologram into the encoding surface of the light modulator as a computer-generated hologram composed of said sub-holograms, each representing one object point of an object which is to be reconstructed by the hologram.