Two-channel observation device
N. F. Koshchavtsev, N. I. Gusarova, T. G. Ob'edkova
The State Unitary Branch Enterprise "Special Design Office of Night Vision", Moscow, Russia
In some cases the achieviment of highly enough spatial resolving ability and temperature sensitivity may be carried out due to use of two-channel scheme of the instrument: a channel of the device of vision on the basis of image-intensifier tube (IIT) and a thermo vision channel with the low spatial resolution on the basis of photo detector on PbSe with thermoelectric cooling system. The two-channel device is developed in the of night vision technique. In a short ware channel (SWC) the objective with a focal length f = 100 mm at a relative aperture O = 1:1.5 is used. The channel is developed on the IIT basis such as the EPM-53GA with a turn of the image. A long-wave channel (LWC) is developed on the basis of PbSe photo detector with 64 photosenditive elements and thermoelectric cooling system. The main characteristics of the devece (features) are presented.
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