You will need
- - muffle or an electric furnace;
- - short throw lens;
- - biconvex lens;
- - substances and chemicals from a school chemistry lab.
Instruction
1
Two glass plates dip in a mixture of sulfuric acid (H2SO4) and potassium dichromate (К2Сг2О7). After 4 hours air dry.
Stannous chloride (SnCl2) put in a porcelain Cup and place in a muffle furnace. In the absence of a muffle, you can use the furnace. At a distance of 8-10 cm above the Cup, secure the glass. A Cup, cover with metal plate.
When furnace temperature rises to 400-480 degrees, the metal plate clean. On the glass soon formed a very thin conductive coating.
Stannous chloride (SnCl2) put in a porcelain Cup and place in a muffle furnace. In the absence of a muffle, you can use the furnace. At a distance of 8-10 cm above the Cup, secure the glass. A Cup, cover with metal plate.
When furnace temperature rises to 400-480 degrees, the metal plate clean. On the glass soon formed a very thin conductive coating.
2
Then, on one of the plates is necessary to apply photopolarimetric.
It is prepared by a merger of equal amounts of 3% solution of thio-urea Na4 C(S)NH2, and lead acetate (6% solution). Apply to free from the conductive coating side of the plate nail, then vertically, using tweezers, dip it in the resulting solution.
Now, be sure to wear rubber gloves, fill the jar with plate a concentrated alkali solution, and very carefully stir with a glass rod, without touching the plate.
After about 10 minutes remove the plate and wash thoroughly in distilled water. Dry.
Again in the oven put a clean porcelain Cup, now with silver, and place it over the treated plate. Repeat the process, only now raise the temperature to 900 deg. Until obtaining a mirror film on the plate.
It is prepared by a merger of equal amounts of 3% solution of thio-urea Na4 C(S)NH2, and lead acetate (6% solution). Apply to free from the conductive coating side of the plate nail, then vertically, using tweezers, dip it in the resulting solution.
Now, be sure to wear rubber gloves, fill the jar with plate a concentrated alkali solution, and very carefully stir with a glass rod, without touching the plate.
After about 10 minutes remove the plate and wash thoroughly in distilled water. Dry.
Again in the oven put a clean porcelain Cup, now with silver, and place it over the treated plate. Repeat the process, only now raise the temperature to 900 deg. Until obtaining a mirror film on the plate.
3
To manufacture the phosphor in the second plate to re-cook oven. At this time, in a porcelain Cup put the crystals and copper crystals in a proportion of ZnS: ZnS - 100%, cu (copper) - 10 %. In a furnace the process of circulation of copper vapor and passing between the crystals. In any case, not razmalyvanie the resulting crystals. The result is a colorless powder.
4
Now mix capinlac with crystals. the resulting mixture pour on the plate with a layer of silver.
When the mixture is completely spread out and formed a smooth surface, apply a second plate on the spray and squeeze.
(Don't forget after the application of conductive coating to solder the wiring at the edges of the plates).
Seal received a night vision device.
When the mixture is completely spread out and formed a smooth surface, apply a second plate on the spray and squeeze.
(Don't forget after the application of conductive coating to solder the wiring at the edges of the plates).
Seal received a night vision device.
5
Assemble a circuit of high voltage generator.
6
Assemble the device itself. Lens it can serve as a short throw lens from any camera as eyepiece you can use any biconvex lens.
After final Assembly, check again all connections and turn on. On your PNV quiet beeps transformer – works.
The image may not appear immediately. Change the frequency of the oscillator voltage level. Set the maximum sensitivity.
And – use.
After final Assembly, check again all connections and turn on. On your PNV quiet beeps transformer – works.
The image may not appear immediately. Change the frequency of the oscillator voltage level. Set the maximum sensitivity.
And – use.