1227. Improvements of Electro-Optical Sensors Due to Application of Modern Components
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Paper
Abstract
In the field of Electro-Optic-Systems usually the parameter ‘quality of the image’ (Modulation Transfer Function or Minimum Resolvable Temperature) ‘range’ and ‘field of view’ has the highest priority. The paper analyses two typical systems, a Low-Light-Level- TV-Camera and a ‘Thermal-Imaging-System’, both for tanks, with respect to the key-parameter ‘weight’. It is interesting to see that new image-intensifiers will improve the overall-performance of a LLLTV-system and will reduce the weight of the system. Such a new image-intensifier includes an improved photocathode, a multichannel-intensifier and a CCD-array for TV-read out. A weight-reduction of a factor 4 will be possible. In the field of ‘Thermal-Imaging-Systems’ we have to use today the ‘Common-Nodules’ to meet actual performance requirements. Hughes, AEG-Telefunken and Eltro develop a new version with an electronic-multiplexer (EMUX) for the video-signals, instead of optical-multiplexing with a ‘LED-Array’ in connection with a (bulky) ‘Visual Collimator’ and an (bulky) eye-piece-arrangement. The EMUX-idea offers an important weight reduction.
