What Is Infrared Array?

According to Maslow's theory, needs are divided into five categories: physiological needs, safety needs, social needs, respect needs, and self-actualization needs. Human safety needs rank second only to physiological needs. The continuous economic growth and the improvement of the living standards of ordinary people, as a result, people's demand for security is getting higher and higher, and more and more attention is being paid. The demand of the security market is also increasing rapidly every year. Especially after a series of international and domestic security incidents, the demand for the entire security surveillance market has been further expanded.

Array infrared

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In the field of security surveillance,

Development of infrared technology

Active semiconductor infrared technology was first developed by Bell Labs in the United States in the early 1960s. The earliest infrared conversion efficiency was only 5%, and the efficiency was very low. It was mostly used in simple products such as infrared remote controls. After repeated practice and development in night vision applications, by combining a single infrared LED package and fixing it around the lens, the surveillance camera takes an image and actively fills the light. The effective efficiency of a single LED infrared diode is about 20%, but there are obvious drawbacks, that is, the luminous power is greatly reduced due to heat dissipation processing, so that the lighting distance is shortened sharply, and it often does not reach the nominal irradiation distance. There is the volume of the product, which is limited by the number of LED tubes. In order to meet the lighting needs, multiple LED tubes must be assembled, resulting in increased volume and inconvenient application. In addition, because the heat of the LED cannot effectively conduct heat, the overall temperature of the cavity increases, which seriously affects the performance of the camera CCD, which is why the mainstream infrared camera on the market has a short life. the reason.

Based on the urgent needs of market practice, Array Infrared is a revolutionary improvement based on the original LED infrared technology. Array infrared night vision technology essentially implements the night vision effect by means of active infrared light waves emitted by the camera, but uses advanced packaging technology to package dozens of high-power, high-efficiency infrared wafers on a plane. As soon as this technology came out, it achieved extraordinary rapid development.

The biggest advantage of the array infrared camera in the field of monitoring is that it solves the problem of heat dissipation of LED light sources. It has extremely high luminous efficiency and luminous intensity. The photoelectric conversion efficiency is increased by about 25% compared to ordinary infrared LED cameras. It greatly reduces energy consumption, increases the lighting distance, and prolongs the service life of the camera. The service life of the array infrared night vision camera is generally 9 times that of the ordinary infrared camera.

The main advantages of array infrared cameras over ordinary infrared cameras

1. High brightness. Obviously, the higher the brightness, the farther the irradiation distance of the light is. The output power of a single LED is generally 5-15mW. Although the brightness can be increased by increasing the current, the limitation of the material itself is the photoelectric conversion efficiency of infrared rays Not high, only 20% of the light, and the remaining 80% is thermal energy. Therefore, while increasing the brightness, more thermal energy is also generated, which is obviously not feasible for the key device CCD of the camera with strict operating temperature requirements. In addition, multiple combinations of multiple LEDs use a PCB as a carrier, which has poor heat dissipation performance. The array infrared camera's light source is packed with dozens of high-efficiency and high-power wafers on a plane through high technology, and is equipped with a good heat conduction device. At the same time increase its photoelectric conversion efficiency, the brightness is about 100 times that of a single LED.

2. Small size. As mentioned earlier, array infrared uses highly integrated advanced packaging technology. An array infrared chip packaged with dozens of wafers is only the size of a fingernail. Imagine the volume of combining dozens of individual LEDs. What is it like? The small size is mainly convenient for application. If an infrared light source with dozens of individual LED combinations is installed on the high-speed dome camera, the effect is conceivable.

3. Long life: Zhongneng is keenly aware that there is a technically difficult bottleneck in the field of night vision monitoring, so it concentrated on investing a lot of R & D efforts and focused on research and development in the field of night vision monitoring. Finally, the array infrared technology has been studied. The entire series of products have independent patented technology and intellectual property rights, which ensure the good working state of the CCD, and its service life is 9 times that of ordinary LED infrared cameras. The ordinary LED infrared camera puts the LED luminous tube and the camera in a cavity, and the heat of the LED tube cannot be effectively dissipated through the PCB board, and the temperature problem seriously limits the service life of the CCD. After 3 months of use, ordinary LED infrared cameras begin to show signs of aging. Blurred images, whitening, lack of contrast and other problems appear, which directly affect the use of the product, and even the entire camera is scrapped.

4. High efficiency: determined by the characteristics of the semiconductor itself, its luminous efficiency and heat dissipation performance are a virtuous circle. The better the heat dissipation performance, the lower the operating temperature, and the lower the operating temperature, the better its luminous efficiency. On the contrary, it is in a vicious cycle of decreasing efficiency. In addition, our power supply system uses a patented high-frequency spike power supply to ensure higher efficiency.

5. Uniform light: As we all know, each ordinary infrared LED has a spherical surface in front of it, which is an independent optical design to change the size of the light spot. When multiple infrared LEDs are combined around the camera lens, the emitted light is composed of multiple light spots overlapping, and the overlapping part will have a particularly high brightness. At the same time, a circle is formed, which is the "flashlight effect". Of course, the effect of night vision pictures Is uneven. The array infrared camera is equivalent to a large point light source. Through the special optical design, the light is evenly illuminated to the monitored object, and the brightness of the middle and surroundings of the obtained monitoring image is consistent.

In addition, the ZONEDA array infrared camera has made further improvements and improvements in terms of the refractive index of infrared and visible light passing through the lens, and the sensitivity characteristics of the CCD. Make sure that you can get true-to-life colors and focus on accurate and clear pictures during the day and night. At the same time, in terms of protection, the Zhongnida infrared night vision camera can prevent the invasion of fine dust and big waves. In order to solve the problem of frost and fog, it is also equipped with wipers, etc., to ensure the quality of the monitoring image in all aspects.

With the advancement of camera technology, night vision monitoring is still under further development. Due to cost, picture clarity, application fields, and the unique attributes of light emitting materials such as infrared light waves and lasers, array infrared is still the best in the field of night vision monitoring. The most practical solution, which improves many defects of traditional LED surveillance cameras, can achieve relatively best night vision monitoring results, and also presents good results in the field of road monitoring license plates, making up the gap in the market. Array infrared camera technology with independent intellectual property rights will inevitably cause a new technological revolution in the field of night vision monitoring, which will continuously expand people's monitoring field of vision, thereby meeting the requirements of night vision monitoring in different application fields. As people s awareness of array infrared is further improved and the application field is expanded, the effect of large-scale production and production costs will be greatly reduced, so that the array infrared technology can be further promoted and popularized. Array infrared cameras are no longer some The high-end products in the special field finally replace the ordinary LED infrared cameras in the entire video surveillance field, because the success of determining an emerging product lies in the extent to which this product can be accepted by the market. Imagine that a cost-effective ratio is much better than mainstream industry adoption. What is the reason why we should not use it when it is a product? Zhongnanda will always make unremitting efforts to achieve this goal.