| 摘要 |
An optical data processing system of the coherent spatial filter type which (a) produces enhancement of the contrast of filtered images before they are photographed by providing a controllable optical attenuator in the path of the filtered light, the amount of light permitted to shine through the attenuator being a function of the intensity of the light, and (b) produces a rose diagram by providing a rotatable slit of adjustable length that is rotated in synchronism with the spatial filter, the length of the split being varied in accordance with the intensity of the light passing through the spatial filter; a camera is provided to record light from a conventional source that is collimated and passed through the rotatable slit.
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