| 摘要 |
A rugate filter coating for reflecting at least a portion of at least one electromagnetic wavelength band, the filter comprising a transparent coating on a substrate, the coating having an incrementally varying refractive index of refraction depth, with each of the increments having a constant a constant index of refraction. The index of refraction of the increments determined by calculating the index of refraction profile of the coating, dividing the continuous index of refraction coating into increments and setting the constant of refraction for each of the increments equal to the average index of refraction of the continuous index of refraction over the increment.
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