How far can the night vision goggles see? This question is like asking how far can the telescope see? Although both telescopes and night vision devices are optical products, they are not a concept. One day to watch, one night to observe. The distance seen by the telescope is related to the human vision, the size of the object, the air quality, and the quality of the telescope itself. So what factors are closely related to the distance seen by night vision goggles?

The night vision device observes the near and far situation in total darkness and low light

The light conditions for night observation can be divided into two observation environments: low light and total darkness. The observing distance of the night vision device is different when the moon is sparsely night and in the completely dark environment.

Low light observation distance

The low-light observation distance is generally based on a quarter of a full moon and the weather is clear. The low-light observation distance of the night vision device is generally 50-400 meters. The light observation distance will be closer.

Even night vision devices that cost more than 10,000 yuan on the market cannot observe a distance of more than 400 meters in low light. The second-generation night vision device can only reach more than 200 meters. For example, the best-selling super second-generation Onick NVG-S low-light night vision device can reach 200 meters in the investigator in January and April, and it is 175 meters when it is cloudy, 1/ The distance to identify a person in April is 145 meters, and the cloudy is 115 meters. The general market price of a night vision device is about 1,000 yuan, and its low-light observation distance is about 50 meters.

Total black observation distance

The total black observation distance is not only affected by the algebra and quality of the night vision goggles, but also by the distance of the infrared emitter. At present, the distance of infrared emitting lights equipped with night vision devices is generally about 30-50 meters. The second-generation + night vision device can observe about 100 meters in total darkness.

In our actual use, there are very few cases of total black. For night vision devices of the second generation and above, they are basically not completely black when used outdoors. For the first generation of night vision devices, as mentioned earlier, a little bit darker will be completely black.

The above description does not include the digital night vision device, it is a low-light night vision device with a green imaging tube inside the device. So, how far can the digital night vision go? The darker the digital night vision device, the clearer the observation target. At present, the best digital night vision goggles are the Baoshineng Equinox Z series and Onick NK-720, both have similar functions, but the observation distance of Onick NK-720 digital night vision is better, and the observation distance is 350-400 in total darkness. Meter.

Summary: The determinants of how far the night vision device can see are the light in the environment and the image enhancement tube installed in the device. The low-light-level night vision device has a longer observation distance when compared with the cloudy and bad light environment at night when there is a moon. The higher the algebraic level of the image-enhancing tube, the clearer the observation target. The digital night vision device has a longer observation distance in a dark and non-light environment.