SOV - 1-PN-22-M1

Zameriavač
Sight 1-PN-22-M1
The combined sight allows you to observe and aim at targets depending on weather conditions, terrain and time of day, day and night.
The combination of the sight consists in the use of two systems (day and night branch) when viewed with one eyepiece. The visibility of the target at the day branch is practically unlimited, at the night branch in open terrain and with lighting of 0.003-0.005 lux is 400m.
The visibility of the target deteriorates when the transparency of the atmosphere deteriorates, when the contrast of the observed target in the background decreases and when the illumination of the terrain decreases. Conversely, increasing the viewing distance is possible by increasing the illumination of the terrain and improving the contrast of the target in the background.
The length of visibility is also affected by the nature of the target, as different targets reflect light rays differently.
Principle of activity:


In the combined sight 1PN-22-M1, two systems are connected in one construction: day and night
The diurnal branch is a normal optical system.
In the night branch, an electron-optical image converter type U 42-M is used for observation of objects in low terrain lighting. in the electron-optical converter, the brightness of the image is amplified to a value sufficient for observation.
The electron-optical image converter has a three-stage image brightness gain. A thin emission layer of the photocathode, applied to the inner surface of the front wall of the first chamber of the transducer, is able to balance the electrons by the action of light rays incident on it. The amount of electrons at each point of the photocathode is proportional to the intensity of the radiant energy incident at this point. The intensity of radiant energy is determined by the amount of light reflected from an object in the field.
A strong electrostatic field is created inside the first chamber between the photocathode and the screen. An electrostatic field is generated in the chamber of the electron-optical transducer due to the potential difference between the anode and cathode. The electrons move under the action of electrostatic field forces towards the positively charged screen. As it moves towards the screen, the electron flux is focused by the electron lens.
The focused electron flux impinges on the luminescent layer of the shade at high speed and it begins to glow. The screen of the first chamber acts on the photocathode of the second chamber and it begins to emit electrons, the intensity of the radiation being of the order of ten times the intensity of the radiation of the first photocathode.
The same process will occur in the third chamber of the transducer and the radiation intensity will again be of the order of ten times the radiation intensity of the second photocathode.
In this way, in the electron-optical image converter, the electron flux is amplified by a thousand times and an image of the observed object, or terrain, with an amplified brightness is created. The high brightness gain coefficient allows the observation of objects or terrain in night lighting conditions without artificial lighting.



Tactical and technical data:


day branch night branch Quantcast
magnification ......................................... 6 times ...... .................. 6.7 times
field of view angle ............................. 15 ° ................ ............ 6 °
focusing the eyepiece ........................... from -3 to +5 diopters
input voltage ........................... 26 V
output voltage .............................. 40 kV
dimensions: length ............................ 335 mm
width ................................ 400 mm
height ................................ 460 mm
weight .......................................... 31 kg
URL : https://www.valka.cz/SOV-1-PN-22-M1-t40333#154472 Version : 0
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