11 September 1989 Window Evaluation Programme For An Airborne FLIR System: Environmental And Optical Aspects
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Abstract
A series of environmental tests is being undertaken on various combinations of Infra Red coating and substrate materials, namely polycrystalline germanium, monocrystalline germanium and zinc sulphide. The purpose of this programme is to evaluate and select a suitable material combination for an aircraft borne Forward Looking Infra Red (FUR) system and to produce a material data base. The function of the window under evaluation was to act as both an environmental and aerodynamic protection to the front of the FLIR system. In this role it is required to be very durable and resilient. The window is expected to resist all environmental conditions that the aircraft may encounter and still maintain very low transmission losses. This paper details the environmental and optical aspects of the evaluation programme.
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Richard D. Harris, Andrew W. Towch, "Window Evaluation Programme For An Airborne FLIR System: Environmental And Optical Aspects", Proc. SPIE 1112, Window and Dome Technologies and Materials, (11 September 1989); doi: 10.1117/12.960784; https://doi.org/10.1117/12.960784
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