HomelinessDo it yourself

Create a night vision device with your own hands

The design of night vision devices is based on the ability of each physical body to reflect IR. This action is possible due to the internal photoeffect that appears under certain conditions.

Knowing this feature, you can make a night vision device with your own hands. To do this, stock up on certain chemical elements.

How to make a night vision device at home?

It is necessary to take two small glass plates, as well as Sn Cl2, silver, ZnS and copper. In a solution of sulfuric acid and dichromate, it is necessary to heat the glass for about four hours. After that, they should be thoroughly dried.

Then put the chloride of tin in a porcelain cup and put it in an electric oven. Above it at a distance of 10 centimeters it is necessary to attach the glass, and cover the container with a metal plate and turn on the heating device.

As soon as the furnace warms up to 450 degrees, you need to take a plate and make sure that it has formed a conductive thin coating. The glass should be placed on the table to cool.

We continue to create a night vision device with our own hands. Next, you need to apply a photoconductor to one of the plates. To do this, you need a solution. You can make it in the following way: take three percent thiocarbamide and six percent lead acetate. These solutions should be placed in a glass vessel. Using tweezers, it is necessary to dip the glass plate into the mixture, holding it vertically. But, before doing this, you need to apply a varnish to the side that is not covered with a conductive coating. Further, wearing rubber gloves, you should pour the container with the plates of the alkali solution to the very top and gently stir the glass rod contents of the vessel. It is advisable not to touch the glass. After 10 minutes, the plate must be removed and rinsed in distilled water.

To further create a night vision device with your own hands, you need to dry the glass well. To do this, turn on the oven, place Ag (silver) in a clean porcelain cup and repeat the process described above, but already at a 900-degree temperature. After this, a plate with a semiconductor should be coated so that a mirror film is formed.

We prepare the phosphor. Again, you need to turn on the oven and place copper and zinc acetate in the proportion of 10 * 100 in the porcelain bowl. It is very important that the crystals of the elements are as small as possible.

Under the influence of heat, copper vapor will circulate, which then will be able to penetrate into the spaces between the zinc crystals. The obtained substance should not be broken at all. As a result, a white powder should form. Next, you need to mix the varnish with the crystals, pour the solution onto the plate (onto the silver layer) and wait for the mixture to spread evenly, forming an even surface. Then a second plate with a conductive coating should be placed on the lacquer. When everything is dry, a practical ready-made night vision device must be sealed with your own hands. After this, it is necessary to apply a conductive coating and solder along the edges of the wiring plates for the leads.

How to make a night vision device? Assembly

It remains to purchase a generator and put all the components in one body. Its form can be arbitrary.

The lens for the device can be borrowed from any camera, but it is better to use short-focus (they can be found in the apparatus "Smena-8M" and "FED"). For an eyepiece any lens, but necessarily biconcave, is suitable.

Having gathered all together, it is necessary to check for strength all the connections. When you turn on the device you should hear a thin squeak. It is also necessary to adjust the voltage level, generator frequency and sensitivity.

I wish you success!

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