The Design And Manufacture Of A Large Zinc Sulphide Window For An Airborne Application

E. S. Cameron; G. Cartledge

doi:10.1117/12.951970

1 May 1986 The Design And Manufacture Of A Large Zinc Sulphide Window For An Airborne Application

E. S. Cameron, G. Cartledge

Proceedings Volume 0590, Infrared Technology and Applications; (1986) https://doi.org/10.1117/12.951970
Event: 1985 International Technical Symposium/Europe, 1985, Cannes, France

Abstract

The design and manufacture of a large chisel window assembly is reviewed, the intended application being for a mirror-stabilized narrow field of view thermal imager in a high speed aircraft. Aerodynamic heating was expected to be significant, and this placed restrictions on the choice of material and the configuration of the window assembly. The practical problems of procurement and manufacture are discussed, including material supply, edging, polishing, coating and assembly. The results of IR interferometric tests on individual panes and on the final assembly are presented. The window is shown to achieve diffraction-limited performance, while being capable of withstanding high temperature and pressures, and is resistant to rain erosion.

Citation Download Citation

E. S. Cameron and G. Cartledge "The Design And Manufacture Of A Large Zinc Sulphide Window For An Airborne Application", Proc. SPIE 0590, Infrared Technology and Applications, (1 May 1986); https://doi.org/10.1117/12.951970

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