Method for making an achromatic lens for millimeter-wave and...

Details Method for making an achromatic lens for millimeter-wave and... Method for making an achromatic lens for millimeter-wave and...

2006-08-08

2006-08-08

Assaf, Fayez G. (Department: 2872)

Optical: systems and elements

Having significant infrared or ultraviolet property

Lens, lens system or component

C359S356000, C359S361000, C359S900000

Reexamination Certificate

active

07088503

ABSTRACT:
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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