Why can I see things in the dark with night vision device?
It is very difficult to see things in the dark with the naked eye. However, with the help of night vision goggles, you can see the scene clearly in the absence of bright light, or only a little dim light. There are two commonly used night vision devices: low-light night vision devices and infrared night vision devices.
At night, as long as there is a little bit of star and moon light, the image booster tube in the low-light night vision device can enhance the weak light reflected from the scene through photoelectric conversion and amplification.
The image booster tube composed of the three-stage magnifying board has a magnification capacity of 1 million times, which is enough to reproduce the scene in the low-light environment clearly.
In an environment with absolutely no bright light, infrared night vision devices are useful.
