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《Infrared and Laser Engineering》 2010-04
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Infrared optical window for airborne photoelectric equipments

ZHANG Xing-de,LIU Lin,LI Rong-gang(North China Research Institute of Electro-optics,Beijing 100015,China)  
With the development of airborne photoelectric equipments,the IR optical window has become a special technique field.The design for IR optical window covers broad scope of knowledge and requires high technology.The type-selection and design scheme of IR optical window of airborne photoelectric equipments were analyzed based on the difference between ground window and airborne window.Considering the recent development and characteristics of the typical materials of the IR optical window,the mechanical intensity of optical window was calculated.And the finite element analysis method was used to calculate the temperature influence of the axial and radial gradients on the optical windows.It is indicated that in IR optical window designing,the air dynamic load must be considered.And radial temperature gradients in the optical window must be carefully controlled in thermal radiation processing.The type-selection and design of IR optical window are meaningful for engineering application.
【CateGory Index】: TN976
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