The military night vision device has high definition and long distance

With the development of military night vision device, the requirement of its definition is higher and higher. So the second generation and above image adding tube are selected for military night vision device. At present, the first generation night vision device has not been purchased by the military. The first generation night vision device can not be selected by the military because it needs to use infrared transmitter in most cases. The military night vision devices purchased by the West and the United States in recent years have begun to purchase a large number of 3-generation and 4-generation night vision devices. Due to cost reasons, although the number of second-generation night vision devices purchased by the military is still the largest, the growth rate of generation 3 and generation 4 is very fast. The world's largest supplier of military night vision devices, such as olfa in Germany and RNO in the United States, are all supplied to the military. At present, the United States and the West prohibit the supply of 3-generation and 4-generation night vision devices to China, so there are no 3-generation and 4-generation night vision devices on the market in China.

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However, in terms of effect, compared with the first generation night vision device, the second generation night vision device has a qualitative leap forward. However, there is no qualitative leap forward in generation 3 and generation 4 compared with generation 2. Generation 3 and generation 4 are more likely to solve the problems of edge twist and sharpness decline. Therefore, as both military and civilian, the second generation night vision device is actually a very good choice. The most popular models purchased by NATO and the United States are the Alfa S450 and g350 +. The former is a binocular and binocular night vision device, and the latter is a single tube night vision device. Of course, this model is not called in the military. The NATO code of olfa S450 is bs3506, and the NATO code of g350 + is sj5701. These two types have a very good reputation in the military, and have been widely used in recent NATO military operations, including the Kosovo war.

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What is the working principle of infrared explorer and how to use it in security field?

 Since Herschel discovered the infrared ray in the solar spectrum in 1800, the blackened mercury thermometer was the earliest infrared explorer. With the development of infrared experiment and theory, new equipment has been emerging. The preparation of infrared Explorer involves many subjects, such as physics, materials, chemistry, mechanics, microelectronics, computer and so on.

Because of its unique advantages, infrared exploration technology has been widely studied and used in military defense and civil fields, especially in the traction of military field demand and the promotion of related skills development, as a high-tech infrared exploration technology will be more widely used in the future, and its position will be more important.

The infrared detector works by detecting the infrared emitted by the human body. The Explorer collects the infrared radiation from the outside and gathers it on the infrared sensor. Pyroelectric element is usually used in infrared sensor. When the temperature is announced to change after receiving infrared radiation, the pyroelectric element will release electric charge and alarm after detection and processing.

The infrared detector is a kind of equipment which transforms the infrared radiation signal into electrical signal output. Infrared radiation is an electromagnetic wave whose wavelength is between visible light and microwave, which can not be detected by human eyes. To detect the existence of this radiation and measure its strength, it must be transformed into other physical quantities that can be detected and measured. Generally speaking, infrared radiation

Any effect caused by irradiating an object can be measured only by the action and is flexible enough to measure the intensity of infrared radiation. Modern infrared explorers mainly use infrared thermal effect and photoelectric effect. The output of these effects is mostly electricity, which may be converted into electricity by appropriate methods.