| 摘要 |
An optical system for processing analog information in the form of complex data without a requirement for coherent optics, wherein discrete pieces of data having magnitude and phase components are multiplied together in a parallel operation. Information to be processed is entered in the form of diffraction gratings upon a pair of spaced apart writing media, normally in a column-row arrangement of distinct resolution elements. Magnitude information is contained in the transmissivity of the resolution elements and phase information in the spatial frequency of the gratings. Processing of resolution element pairs is optically performed by imaging spatially filtered light from resolution elements of the first medium upon corresponding elements of the second medium by means of a telecentric lens arrangement, spatially filtered light from the second medium being detected to provide the processed information.
|
