DIY night vision device from a smartphone

Hello friends! This not complicated night vision device is really easy to make and anyone can do it. And now I will tell you how to make it. Such a device can see even in complete darkness, and can also take photos or record videos. This device can be assembled in an hour or two; no special skills are required.

Materials you will need:

• A 12V battery or accumulator (I used 3 4V batteries from a flashlight, connecting them in series).
• Wires for installation.
• Switch.
• Hot melt adhesive.
• Infrared LEDs 5 pieces. (can be taken from broken TV remotes).
• Cardboard box.
• Black paint.
• Insulating tape.

Tools for work: Pencil, ruler, knife, wire cutters, pliers, soldering iron, hot-melt gun, brush and tester (if available).

Making a simple night vision device

Let's begin. I open and disassemble the cardboard box and make markings on the cardboard: cut 2 rectangles 22.5 cm x 5 cm with a knife, bend each of them 90 degrees, 15 cm from the edge. I ended up with two L-shaped pieces, which I glued together.

I cut and paste the inner partition one cm from the edge, while on one side the partition has a gap of 2 cm.

From the outside, the gap is covered with a lid (glued) made of cardboard measuring 2 cm x 7.5 cm.

A second partition is cut out of cardboard, completely corresponding to the internal dimensions of the case. In this partition, I cut out a rectangle of 4 cm x 3 cm on the side, and in the middle I cut a slot of 0.5 cm x 4 cm.

I cut a round hole on the side of the case for the switch. I paint all the parts with black paint on all sides.

I connect the batteries in series and make a tap for the switch.

I glue the batteries into the case. I solder and screw the switch. I bring out two wires to power the backlight. When the switch is on, they should receive 12 V, when off, the voltage is zero.

I solder infrared ones from old faulty TV remotes LEDs. Every Light-emitting diode I connect through a 270 Ohm resistor and connect them all in parallel.

And I bring out a short wire from them to supply power. I connect the backlight to the backlight power output. I insulate it with electrical tape and insert the backlight into the housing, tuck the wires so that they don’t stick out.

I close the lid. All is ready.

To check the night video device in operation, we take a regular smartphone and insert it from the back under the lid into the inside of the device, on the other side I secure it with an elastic band.

Now you can check its operation in the dark.

Watch the video

If you don’t understand any aspects of making a night vision device, watch the video for the entire manufacturing process and demonstration.

I recommend assembling such a device with children, the process is not complicated, and the children are delighted. Good luck with your assembly and good mood!