What is the difference between thermal imaging and night vision?

1) If you have used an ordinary night vision device, you will find that the observation experience of the night vision device is completely different from that of the ordinary infrared thermal imaging device. This is because the general night vision device directly observes the target through the lens, so the field of vision seen is the same as that seen by the telescope lens, which is round and the picture is green. If the clarity is enough, it is possible to identify who the target is and see the five senses clearly.

2) The infrared night vision thermal imager sees the image on the internal LCD screen, instead of directly seeing the target, so the field of view it sees is square. The imaging of infrared night vision thermal imager will be based on temperature distribution. The higher the temperature, the greater the brightness, the lower the temperature and the darker the color. Its main purpose is to find targets and identify target categories, such as people and animals.

2. The influence of light factors is different.

1) The second generation night vision device is greatly influenced by the environment because of its imaging principle. Especially under the influence of light, the observation distance will be shortened after the light darkens. In the case of complete darkness, the auxiliary infrared light source must be used, and the farthest distance of the auxiliary infrared light source can only reach 100 meters. At the same time, they are also afraid of strong light, although many traditional night vision devices are protected by strong light. However, if the ambient brightness changes greatly, it will have a great impact on the observation.

2) Infrared thermal imaging night vision device will not be affected by light. No matter day or night, rainy day, snowy day or foggy day, the target object can be clearly observed. It is for this reason that top-class night vision equipment in vehicles, such as Mercedes-Benz and BMW, all use infrared thermal cameras.