Analysis of the thermal imaging night vision device's imaging principle
The thermal imaging night vision device can produce realistic and clear thermal images in total darkness, mist and smoke. It can be seamlessly connected with wide-screen navigation system and multi-function navigation system.
The camera lens can freely rotate 360 degrees horizontally and tilt up and down ±90 degrees, allowing you to experience the sensory enjoyment and security brought by military technology. Designed to enhance driver vision.
The system can output a clear thermal image of the road ahead in severe weather such as dark night, fog and haze, and low human visibility such as headlight glare, effectively improving the driver's visual range.
At the same time, only pedestrian recognition and front vehicle collision alarm functions can detect pedestrians, vehicles and obstacles in advance, greatly improving driving safety.
Thermal imaging night vision device principle:
Thermal imaging is passive infrared, which is based on receiving infrared rays emitted by the temperature (heat energy) of an object. After receiving, it is processed into an image and displayed. Generally, images are gray and white images no matter day or night.
Thermal imaging is not active infrared, and the thermal imaging night vision device itself does not emit infrared rays, but only receives infrared rays from the outside world;
So it is very simple to conclude that as long as thermal imaging can receive the infrared emitted by the object, there will be an image output. On the contrary, if the infrared cannot be received, the image of the object we want to see cannot be reflected.
So now some of the questions we all ask, such as:
Whether thermal imaging can see through, pass through walls, see people and objects in the car, and pass through glass, etc., will have certain results.
If you pass through a wall or glass, the wall blocks the infrared rays, and the thermal imaging night vision device cannot receive infrared rays at all, and cannot detect objects on the other side of the wall and glass.
That is to say, if there is an image to come out, there must not be all sealed objects that block all the infrared rays, otherwise the infrared imaging will definitely not be received.
In some environments such as trees and grass, since the infrared is not completely blocked, thermal imaging can still find objects with a higher temperature than plants behind.
For example, there are people and animals behind the grass and trees. Obviously, there is a temperature difference. Things with high temperature will be brighter, and objects with low temperature will be darker.
Thermal imaging is actually temperature difference imaging. Objects with high temperatures emit stronger infrared rays, while objects with lower temperatures emit relatively weaker infrared rays.
