How to make an active infrared night vision device

The initiative needs to have an infrared light source.

You choose a light source that matches the receiving camera.

A special lens concentrates the infrared rays emitted by objects in the field of view. The phased array on the infrared detector element can scan the converging light. The detector element can produce a very detailed temperature pattern, known as a temperature spectrum.

It takes only about 1 30 seconds for the detector array to obtain temperature information and make a temperature spectrum. This information is obtained from thousands of detection points in the field of view of the detector array.

The temperature spectrum generated by the detector element is converted into electrical impulses. These pulses are transmitted to the signal processing unit – a circuit board with an integrated precision chip that converts information from the detector element into data that can be recognized by the display. The signal processing unit sends information to the display, which displays a variety of colors on the display, and the color intensity is determined by the intensity of the infrared rays.

By combining pulses from the detector element, an image is generated.

Extended information: Using night vision goggles in bright light will do the most damage to night vision goggles. Although night vision goggles automatically cut off the circuit protection device in the event of an overload, exposure to bright light can shorten the life of stupid night vision goggles.

Exposure to rain, fog, and even high humidity can damage night vision devices. For use at night, night vision devices are designed to withstand short periods of bright light or moisture.

There are very precise vacuum tubes in night vision devices, so be sure to pay attention to collision prevention and handle them carefully. The method of cleaning the lens of night vision goggles is the same as cleaning the lens of a camera. The lenses are optically coated, and if they come into contact with rough materials, they can easily be scratched by the dust hopper or seep into the glass.

There is usually no need to remove the lens to clean the interior. If it is not used for a long time, it is best to remove the empty car battery and store the night vision device in a cool, dry place.

Objects of different temperatures emit different intensity of infrared rays.

Just as objects of different colors reflect sunlight with different intensities, people can observe the same color of different objects.

Using this principle, the buried mountain infiltration can be made into an infrared-sensitive camera to observe objects that bend the ridge at night. Such an instrument is called a red Weibo external line night vision device.

1. Active, emitting infrared, night vision device accepts, which is the same as a flashlight, but the human eye cannot see infrared.

2. Passive, any object will radiate infrared, the hotter the object, the stronger the radiation, the night vision device accepts these radiation displays, and the thermal imager is like this.

Any object above "absolute zero" (minus 273 degrees) will emit infrared rays that cannot be seen by the human eye, and the working principle of infrared night vision devices is to use the infrared light emitted by the object (or it may be reflected) to form a corresponding image on the night vision device to work.

Thermal radiation infrared rays have energy.