Optical processing

Optical: systems and elements – Diffraction – Using fourier transform spatial filtering

Reexamination Certificate

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C359S559000, C382S250000, C348S059000

Reexamination Certificate

active

07012749

ABSTRACT:
A method of performing a DFT (discrete Fourier transform) or a DFT derived transform on data, comprising: providing spatially modulated light having spatial coherence, said spatially modulated light representing the data to be transformed; Fourier transforming said spatially modulated light, using an at least one optical element; and compensating for at least one of a scaling effect and a dispersion effect of said at least one optical element, using an at least one dispersive optical element.

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