In this year's security exhibitions across the country, dot matrix infrared cameras are placed in the most obvious position of the booths of all manufacturers. It can be seen that dot matrix infrared cameras have become the focus of large camera manufacturers to promote, and the products introduced by various manufacturers All of them selected dot-matrix infrared lamps as the light source. Although these infrared lamps are higher in price than ordinary LED infrared lamps, the effect of the camera is much better than that of ordinary cameras.
Relatively choose the ordinary LED as the light source infrared camera, the dot matrix infrared camera's advantage is obvious. The infrared light of the dot-matrix infrared camera is even, so that the video surveillance image is cleaner and smoother. Second, the high brightness of dot matrix infrared lamps, dot matrix infrared cameras generally only one or two infrared lamps is enough, and most ordinary infrared cameras need dozens of infrared lights. Such as ordinary infrared 30 meters camera infrared light in twenty or so, fifty meters infrared distance camera, infrared light to thirty or more, that is a dot matrix infrared light brightness equivalent to fifteen ordinary infrared The brightness of the lamp. In addition, the long service life of the dot matrix infrared camera, the life of the infrared lamp determines the service life of the infrared camera to a certain extent. The service life of the dot matrix infrared lamp is at least twice that of the ordinary LED infrared lamp, so the infrared lamp with dot matrix is ​​used. The infrared camera is longer in life than an ordinary infrared camera, so users prefer to choose a dot matrix infrared camera when they have a choice. Ordinary infrared light in the work of six months or one year, the light decline is very serious, the high temperature makes the resin encapsulated infrared lamp breaks, causes infrared refraction, so that the luminous rate of the infrared light decreases, so the night vision effect on the monitor Becomes worse than before. In particular, some manufacturers use inferior LEDs. After two or three months of use, the night vision effect will be seriously reduced.
How to solve the first generation of infrared light failure, life and power these problems? Researchers discovered that if many small-power LEDs are concentrated in a small area, special materials are used for encapsulation, and the encapsulating material does not break, thus reducing light decay, and this infrared lifetime has been greatly improved. However, the camera using this infrared lamp also has an inevitable shortcoming. This infrared lamp uses a lens in order to match the angle of the camera to reduce the light transmission angle, resulting in the light can not be fully displayed, so that the entire image is not bright enough The effect of night vision is also not satisfactory, so the actual usage rate is not high. The dot-matrix infrared lamp combines the advantages of the first generation and second-generation infrared lamps while avoiding its disadvantages. The dot-matrix infrared lamp adopts innovative semiconductor technology and arranges high-performance light-emitting crystal arrays. Through a special package, each dot-matrix infrared lamp can integrate 60 LED light-emitting crystals, thereby making its brightness, lifetime, photoelectric conversion, and light Equalization is more ideal, it is also an ideal light source for each camera manufacturer. In the early period due to the small amount, the price of the dot matrix infrared lamp is also high, so the cost of the camera using the dot matrix infrared lamp is much higher than that of an ordinary camera. However, with the mass production of dot-matrix infrared lamps, the cost has dropped sharply, and the application of dot-matrix infrared lamps in dot-matrix infrared cameras is bound to become more and more extensive.
With the development of infrared technology and LED, infrared cameras have also gradually matured. Infrared technology was successfully developed in Bell Labs in the early 60s of the last century. However, the early infrared photoelectric conversion efficiency was only 5%. It was only used in infrared remote controllers and other products. The pace of science and technology has never stopped. Through endless experiments in infrared technology in night vision applications, continuous improvement has finally been found. By combining a single infrared LED package and fixing it in the vicinity of the lens, to give surveillance cameras Filling the light has got better results. This was a great breakthrough in the beginning, and it also laid the foundation for the development of infrared cameras. Looking back at the development history of infrared cameras, it is not difficult to find that the first low-power LED lights were the first to be used in infrared cameras. This type of infrared light is still widely used and is collectively referred to as the first generation of LEDs in the industry. The biggest advantage of this type of LED is its low price, and its market share in the current infrared camera market is still over 80%. However, its shortcomings such as fast light decay, short life, and low power are also unsolved by camera manufacturers. The problem, to a certain extent, also restricts the development of infrared cameras.
At present, the dot-matrix infrared light has been applied to the bolt machine from the beginning, to the current hemisphere, high-speed ball, etc. have used a large number of such dot-matrix infrared light, in the future dot matrix infrared camera will gradually replace the use of ordinary LED Ordinary infrared camera.
Relatively choose the ordinary LED as the light source infrared camera, the dot matrix infrared camera's advantage is obvious. The infrared light of the dot-matrix infrared camera is even, so that the video surveillance image is cleaner and smoother. Second, the high brightness of dot matrix infrared lamps, dot matrix infrared cameras generally only one or two infrared lamps is enough, and most ordinary infrared cameras need dozens of infrared lights. Such as ordinary infrared 30 meters camera infrared light in twenty or so, fifty meters infrared distance camera, infrared light to thirty or more, that is a dot matrix infrared light brightness equivalent to fifteen ordinary infrared The brightness of the lamp. In addition, the long service life of the dot matrix infrared camera, the life of the infrared lamp determines the service life of the infrared camera to a certain extent. The service life of the dot matrix infrared lamp is at least twice that of the ordinary LED infrared lamp, so the infrared lamp with dot matrix is ​​used. The infrared camera is longer in life than an ordinary infrared camera, so users prefer to choose a dot matrix infrared camera when they have a choice. Ordinary infrared light in the work of six months or one year, the light decline is very serious, the high temperature makes the resin encapsulated infrared lamp breaks, causes infrared refraction, so that the luminous rate of the infrared light decreases, so the night vision effect on the monitor Becomes worse than before. In particular, some manufacturers use inferior LEDs. After two or three months of use, the night vision effect will be seriously reduced.
How to solve the first generation of infrared light failure, life and power these problems? Researchers discovered that if many small-power LEDs are concentrated in a small area, special materials are used for encapsulation, and the encapsulating material does not break, thus reducing light decay, and this infrared lifetime has been greatly improved. However, the camera using this infrared lamp also has an inevitable shortcoming. This infrared lamp uses a lens in order to match the angle of the camera to reduce the light transmission angle, resulting in the light can not be fully displayed, so that the entire image is not bright enough The effect of night vision is also not satisfactory, so the actual usage rate is not high. The dot-matrix infrared lamp combines the advantages of the first generation and second-generation infrared lamps while avoiding its disadvantages. The dot-matrix infrared lamp adopts innovative semiconductor technology and arranges high-performance light-emitting crystal arrays. Through a special package, each dot-matrix infrared lamp can integrate 60 LED light-emitting crystals, thereby making its brightness, lifetime, photoelectric conversion, and light Equalization is more ideal, it is also an ideal light source for each camera manufacturer. In the early period due to the small amount, the price of the dot matrix infrared lamp is also high, so the cost of the camera using the dot matrix infrared lamp is much higher than that of an ordinary camera. However, with the mass production of dot-matrix infrared lamps, the cost has dropped sharply, and the application of dot-matrix infrared lamps in dot-matrix infrared cameras is bound to become more and more extensive.
With the development of infrared technology and LED, infrared cameras have also gradually matured. Infrared technology was successfully developed in Bell Labs in the early 60s of the last century. However, the early infrared photoelectric conversion efficiency was only 5%. It was only used in infrared remote controllers and other products. The pace of science and technology has never stopped. Through endless experiments in infrared technology in night vision applications, continuous improvement has finally been found. By combining a single infrared LED package and fixing it in the vicinity of the lens, to give surveillance cameras Filling the light has got better results. This was a great breakthrough in the beginning, and it also laid the foundation for the development of infrared cameras. Looking back at the development history of infrared cameras, it is not difficult to find that the first low-power LED lights were the first to be used in infrared cameras. This type of infrared light is still widely used and is collectively referred to as the first generation of LEDs in the industry. The biggest advantage of this type of LED is its low price, and its market share in the current infrared camera market is still over 80%. However, its shortcomings such as fast light decay, short life, and low power are also unsolved by camera manufacturers. The problem, to a certain extent, also restricts the development of infrared cameras.
At present, the dot-matrix infrared light has been applied to the bolt machine from the beginning, to the current hemisphere, high-speed ball, etc. have used a large number of such dot-matrix infrared light, in the future dot matrix infrared camera will gradually replace the use of ordinary LED Ordinary infrared camera.
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