Can night vision glasses see things clearly at night?

For car owners, all the necessary items for daily driving are essential, including glasses to protect against direct exposure to headlights. It’s okay during the day because there is plenty of sunlight and your vision will not be affected. You can just buy a pair of sunglasses and wear them. But at night, you need to carefully consider what kind of glasses to choose. Many riders think that night vision glasses are a very good choice, but can night vision glasses help you see things clearly at night?

Night vision goggles are auxiliary observation tools based on night vision technology and with the help of photoelectric imagers. There are three types of night vision goggles: low-light night vision goggles, infrared night vision goggles, and car driving night vision goggles.

Night vision technology is a photoelectric technology that uses photoelectric imaging devices to achieve nighttime observation. Night vision technology includes two aspects: low-light night vision and infrared night vision. Low-light-level night vision technology, also known as image enhancement technology, is a photoelectric imaging technology that uses night vision goggles with image intensifier tubes to enhance the faint target image illuminated by night sky light for observation. Low-light-level night vision devices are currently produced and equipped abroad.

The largest and most widely used night vision equipment can be divided into direct observation (such as night vision observation devices, weapon sights, night driving devices, night vision glasses) and indirect observation (such as low-light television). Infrared night vision technology is divided into active infrared night vision technology and passive infrared night vision technology. Active infrared night vision technology is a night vision technology that implements observation by actively irradiating and utilizing infrared light reflected from an infrared source by the target. The corresponding equipment is an active infrared night vision device. Passive infrared night vision technology is an infrared technology that uses the infrared radiation emitted by the target itself to achieve observation. It detects the target based on the temperature difference or thermal radiation difference between the target and the background or various parts of the target. It is equipped with a thermal imager. Thermal imagers have unique advantages over other night vision devices, such as being able to work in foggy, rainy, and snowy weather, having a long range, being able to identify camouflage, and being anti-interference. They have become the development focus of foreign night vision equipment and will replace low-light level night vision devices to a certain extent.

There are three types of night vision goggles: low-light night vision goggles, infrared night vision goggles, and car driving night vision goggles.

Low-light-level night vision goggles amplify weak light to present a clear picture in the field of vision. Therefore, in the absence of light, low-light-level night vision goggles cannot see anything.

There are two types of infrared night vision goggles, active and passive. The active type emits a beam of infrared light, which shines on an object and reflects back, which is equivalent to a flashlight; the passive type amplifies the infrared light emitted by the object itself and converts it into visible light. Therefore, if there is no infrared source (most things that can generate heat can become infrared sources, such as organisms, vehicles, flames, etc.), passive infrared night vision goggles will not be able to see anything.

Active infrared night vision goggles allow you to see in any situation. Different night vision goggles have different applicable occasions. Low-light night vision goggles are suitable for use in the wild when there is starlight or moonlight.

Because the night vision goggles only display monochrome, and its display screen is green (you can notice that the display screens of many instruments are green), so what you see is green.