Optimization of Background Illumination of Plane of Analysis in Optical and Electronic Devices due to SelfRadiation of Construction Elements

An algorithm of optimization of interdevice illumination with aerodynamically heated fairings of infra red azimuth finders is offered. It is implemented with the use of existing computer programs to calculate the temperature fields of fairings of infra red azimuth finders, which are installed on the flying vehicles, and the field exposure of the azimuth finder optical system in the plane of analysis.