Ten questions and ten answers: basic questions of night vision goggles (must see for beginners)

1. Does night vision need a battery?

A: All night vision devices need to be powered by batteries, some are CR123A lithium batteries, and some are ordinary AA batteries or AA batteries.

2. Can night vision devices be used during the day?

A: The night vision device cannot be used during the day! The night vision device is imaged by an electronic image tube, and it is easy to burn out if it encounters strong light. Digital night vision devices are not afraid of exposure and can be used during the day

3. What is the difference between night vision goggles and telescopes?

A: The most direct explanation is that the telescope can be used in the daytime or low-light environment without power supply, while the night vision device can be observed in a completely dark environment and requires power supply to work.

4. What is the effect of night vision goggles?

A: The imaging effect of most night vision devices is green background, while a small number of digital night vision devices are black and white.

5. What is the difference between an active night vision device and a passive night vision device?

A: The night vision devices on the market today are all active infrared night vision devices, which take images by emitting infrared rays. The disadvantage is: it is easy to expose yourself. The advantage is that objects can be clearly seen in a completely dark environment. More suitable for civilian use.

6. What is a digital night vision device? What are the benefits of a digital night vision device?

A: Digital night vision devices are night vision devices that can output video and support night observation. They are generally monocular, and their observation effect is black and white. The advantages of digital night vision devices are that the imaging resolution is high, the distance is long, and the video can be output.

7. What is the effective distance of the digital night vision device?

A: The effective distance of different types of night vision devices is different, generally between 100 meters and 300 meters. Taking the size of the object as a reference, the observation distance is within 80 meters in a completely dark environment; objects at a distance of 1000 meters can be found in an environment with starlight or moonlight.

8. What is the influence on the observation distance of night vision goggles?

A: The observation effect and distance of the night vision device are affected by the surrounding environment and the technical parameters of the night vision device itself.

9. Why is the observation distance of night vision devices not far?

A: Because night vision devices rely on infrared emitters to image in a completely dark environment, and the infrared emitters of all night vision devices currently emit at a distance of less than 100 meters.

10. Why is there a big price difference between night vision goggles?

A: If the parameters of the night vision device are different, the higher the magnification and aperture, the higher the price. The price difference of night vision goggles with the same parameters is mainly due to the difference in clarity