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Method for making an achromatic lens for millimeter-wave and infrared bands
Method for making an achromatic lens for millimeter-wave and infrared bands
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机译:毫米波和红外波段消色差透镜的制造方法
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摘要
The present invention relates to a method for making an achromatic lens. The invention provides a method for making a lens that makes use of the differences in the index of refraction of ZnSe and ZnS in the mm-wave and IR wavebands to minimize the differences in focal position between the two wavebands. A lens train thus made can be used in conjunction with a dual-band focal plane array to simultaneously focus two wavebands on a common focal plane and thus provide for simultaneous imaging in both wavebands.
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