| 摘要 |
A scrolling scan optical band scanner is provided having a scrolling scan optic with a scan function that inherently deviates from an ideal imaging function over wide apertures. Compensation optics are provided to correct the scrolling scan optic performance to provide accurate imaging over a wide aperture. The compensation optics and the scrolling scan optic together accurately scroll the input pattern to an output pattern according to the formula:with X being the total height of input and output beam, xi being the ray height in the input beam, xo being the corresponding ray height in the output beam as a function of time, T being the frame period, and t being the time, and said scroll patterns remains telecentric even where X is large with respect to a physical size of the scanning optic system.
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