In the article a non-uniformity correction method is presented which allows to compensate for the influence of detector's temperature drift. For this purpose, dependency between output signal value and the temperature of the detector array was investigated. Additionally the influence of the temperature on the Offset and Gain coefficients was measured. Presented method utilizes estimated dependency between output signal of detectors and their temperature. In the presented method, the shutter is used for establishing signal reference. Thermoelectric cooler is used for changing the temperature of the detector array.

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The paper presents the results of aspheric lens manufacturing in Infrared Technology and Thermovision Section in the Military University of Technology. Briefly MRF and SSI technologies utilized in the process are described and a case study of three aspherization processes follows. The first two elements are silicon lenses designed for a mid-wave infrared (MWIR) lens. The third one is a parabolic mirror substrate. Technical aspects and requirements of each case are discussed.

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