Some common problems with night vision devices

1. How far can night vision devices see?

This question is somewhat similar to "how far can a telescope see?" The first thing to look at is the type of night vision device, monocular or binocular, whether the magnification is single or high magnification, and the size of the observation target.

2. How much does a night vision device generally cost?

The first-generation night vision device is cheaper, a few hundred yuan. The second-generation night vision devices basically cost around 10,000 yuan or more, because the price of the tubes cannot be lowered. The 3rd generation is basically 20,000-30,000, or even higher. The above prices are for reference only. If you can find the source manufacturer or a more conscientious individual merchant, you will definitely be very lucky.

3. How to choose night vision goggles?

It is not recommended to buy the 1st generation night vision device. First of all, the products have been eliminated. Russian pipe manufacturers have been reducing the production of this type of pipes. This can be seen from the night vision devices on the market. In addition, the reason why it is not recommended to buy a first-generation night vision device is because it is related to your physical safety. There may be some risks to the eyes, and it may cause blindness when exposed to strong light. The first-generation night vision device is bulky, has blurry images, and suffers from fish-eye distortion and other phenomena. Due to risks such as the above, it is not recommended to buy a first-generation night vision device.

Let’s talk about another type of night vision device currently on the market, the digital night vision device. This type of night vision device provides color imaging during the day and low light, and black and white imaging at night or in low light. Since you buy a night vision device, it is mainly used at night. Therefore, when purchasing this type of night vision device, you must endure the black-and-white imaging effect and serious power consumption.

There is no doubt that the second-generation night vision device is a very cost-effective low-light night vision device. It can amplify light tens of thousands of times. The observation effect at night is far better than what is visible to the naked eye. Especially the second-generation night vision device does not need to turn on the infrared auxiliary light for observation. , making the second-generation night vision device more concealable. The 2nd generation night vision device mentioned here is the 2nd generation + night vision device currently sold by many merchants, which means the same thing. Regarding the purchase of second-generation night vision equipment, there are not many models to choose from. Inova's products pvs-7, pvs-14, pvs-31, and GPNVG are all worth buying. They inherit the good reputation of China's manufacturing The quality, especially the performance, is also very good.

The 3rd generation night vision device is controlled by national laws, so there are restrictions on personal purchase. There are many second-hand 3rd generation night vision devices on the market and it is not recommended to buy them. Most of the second-hand 3rd generation night vision devices are assembled by oneself. Assembling the machine yourself will inevitably encounter some risks and troubles, such as dust. It is difficult to assemble a machine without dust in a dust-free workshop, and the dust may fall on the intensifier tube and lens group, causing it to be observed. black spots, which is really annoying. In addition, if you buy this type of 3rd generation night vision device, you must first know what kind of image intensifier tube it is. If you insist on experiencing the effect of 3rd generation night vision devices, you can consider products that are quasi-3rd generation night vision devices. There are some brands on the market that have this type of night vision device.

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