Digital night vision device is a very popular detection machine in recent years. Many people are curious about the principle of digital night vision device. Today I will explain the principle of digital night vision device.
Compared with traditional night vision devices, the principle of digital night vision device is completely different. A digital night vision device generally does not use an image extension tube as an image intensifier, but uses a low-illuminance CCD as an image intensifier. The low-illuminance CCD can recognize very dark light, and then convert it into a visible digital signal, which can be displayed on the LCD screen inside the night vision device.
Therefore, the digital night vision device has a built-in LCD screen, while the digital camera is just an external LCD screen. Digital cameras use ordinary CCDs, while digital night vision devices use low-illuminance CCDs.
It is for this reason that the low-light CCD of the digital night vision device is a very critical part of the digital night vision device, just like the image tube of the traditional night vision device.