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1. The field of view of the tube night vision device is round, and the field of view of the thermal imager is square.
If you have used an ordinary digital night vision device, you will find that the observation feeling is completely different between the digital night vision device and the ordinary infrared night vision device. This is because the general infrared night vision device directly observes the target through the lens, so the field of view seen is the same as the telescope's circular lens. The digital night vision device is electronic. In fact, what you see is the image on the internal LCD screen, instead of directly seeing the target, so the field of view you see is square. Thermal imaging night vision devices are the same as digital night vision devices in this respect. Whether it is a handheld thermal imaging night vision device (the LCD screen is outside the machine) or a telescope-type thermal imaging night vision device, the field of view is square, and Instead of seeing the target directly, it is seeing the image on the LCD screen. So thermal imaging cameras are all digital. The effect of the ordinary digital night vision device cannot be compared with the thermal imager, nor can it be compared with the ordinary night vision device of the 2nd generation+. But the effect of the third-generation digital night vision is the true third-generation night vision, and the viewing field is the same as that of the thermal imager. The display effect is different between the two.
The following is the difference diagram between the two imaging:
2. Generally speaking, the imaging of the ordinary 2nd generation + infrared night vision device is green, which is more like a positive film effect. The imaging of the thermal imaging night vision device is colorful.
So, from this point of view, you can choose the instrument that suits you according to your use. The differences between the two are listed below.
2.The main difference between traditional second-generation + night vision and infrared thermal imaging night vision
1. In the case of total darkness, the advantages of infrared thermal imaging night vision devices are obvious. Since infrared thermal imaging night vision devices are not affected by light, the observation distance of infrared thermal imaging night vision devices in total darkness and ordinary light is exactly the same. Far. The second-generation and above night vision devices rely on auxiliary infrared light sources in total darkness, and the distance of the auxiliary infrared light source is generally only 100 meters away. Therefore, in a very dark environment, the observation distance of the infrared thermal imaging night vision device is much farther than that of the traditional night vision device.
2. In harsh environments, infrared thermal imaging night vision devices have obvious advantages. In harsh environments such as fog and rain, the observation distance of traditional night vision devices will be greatly reduced. But the infrared thermal imaging night vision device will be affected very little.
3. In an environment where the light intensity changes greatly, the advantages of infrared thermal imaging night vision devices are obvious. We all know that traditional night vision devices are afraid of strong light, although many traditional night vision devices have strong light protection. But if the environmental brightness changes greatly, it will have a great impact on the observation. But the infrared thermal imaging night vision device will not be affected by light. It is for this reason that D-class car night vision devices, such as those on Mercedes-Benz and BMW, use thermal imaging cameras.
4. In terms of target recognition ability, traditional night vision devices have advantages over infrared thermal imaging night vision devices. The main purpose of the infrared thermal imaging night vision device is to find the target and identify the target category, for example, the target is a human or an animal. The traditional night vision device, if the clarity is sufficient, can identify the person's target, and can see the person's five senses clearly.
3.Summary
1. If you are in total darkness and need to use a night vision at a long distance, it is recommended to use a thermal imaging night vision. If you choose an expensive 640*480 resolution thermal imaging night vision, theoretically it can See 1000 meters. Similarly, if you are in low light conditions, if your requirements exceed 400 meters, it is also recommended to choose a high-resolution thermal imaging night vision device.
2. If you need to see the details of the target, rather than a rough outline, it is recommended that you choose a 2nd generation+ night vision device.
3. If you need a good view, it is recommended that you choose the 2nd generation + night vision device.
