Traditional Culture Encyclopedia - Photography and portraiture - What are the main advantages of infrared camera?
What are the main advantages of infrared camera?
hi-lite
Obviously, the higher the brightness of the infrared camera, the farther the light shines. The output light power of a single LED is generally 5~ 15mW. Although the brightness can be improved by increasing the current, the limitation of the material itself is that the photoelectric conversion efficiency of infrared light is not high, only 20% of the light, and the remaining 80% is heat energy. Therefore, while improving brightness, more heat energy is generated, which is obviously not feasible for CCD, the key device of the camera with strict working temperature requirements. In addition, many LED combinations are based on PCB, which has poor heat dissipation performance. The light source of infrared camera packages dozens of high-efficiency and high-power chips on a plane through high technology, and is equipped with a good heat conduction device. At the same time, the photoelectric conversion efficiency is improved, and the brightness is about 100 times that of a single LED.
Small capacity
As mentioned above, the infrared camera adopts advanced packaging technology with high integration, and an infrared chip with dozens of chips is only the size of a fingernail. Imagine the volume of dozens of individual LEDs combined together. Small size is mainly convenient for application. If dozens of infrared light sources combined with a single LED are installed on a high-speed ball machine, the effect can be imagined.
long life
Infrared technology ensures the good working condition of CCD, and its service life is 9 times that of ordinary LED infrared camera. The common LED infrared camera puts the LED light-emitting tube and the camera in a cavity, and the heat of the LED light-emitting tube cannot be effectively dissipated through the PCB board, so the temperature problem seriously restricts the service life of the CCD. After three months of use, the ordinary LED infrared camera began to show signs of aging, such as blurring, whitening and insufficient contrast, which directly affected the use effect of the product and even scrapped the whole camera.
high efficiency
Determined by the characteristics of semiconductor itself, its luminous efficiency and heat dissipation performance are a benign ring. The better the heat dissipation performance, the lower the working temperature, and the lower the working temperature can better ensure its luminous efficiency. Instead, it falls into a vicious circle of declining efficiency. In addition, our power supply system adopts self-patented high-frequency sharp pulse power supply to ensure higher efficiency.
Uniform light
As we all know, every ordinary infrared LED has a spherical surface in front of it, which is an independent optical design to change the spot size. When a plurality of infrared light-emitting diodes are combined around the camera lens, the emitted light consists of a plurality of overlapping light spots, and the brightness of the overlapping parts will be particularly high, and at the same time, a circle will be formed, that is, the "flash effect", and the night vision picture effect is of course uneven. Array infrared camera is equivalent to a large point light source. Through special optical design, the light shines evenly on the monitored object, and the brightness in the middle and around the monitoring picture is consistent.
Digital China Anbang infrared camera has high cost performance and perfect after-sales service guarantee system, and has a very good reputation and ranking among infrared camera products in the same industry. For example, DCS-R110s15m hemispherical waterproof infrared camera adopts current frequency conversion technology and built-in high-performance CPU, which can automatically adjust the brightness of infrared lamp according to the light signal intensity collected by CCD, and always ensure the best effect of shooting pictures. At the same time, the hemispherical infrared camera effectively prolongs the service life of the infrared lamp, and the matching life is as high as 2000. DCS-R110s 15m hemispheric waterproof infrared camera adopts a 4.3mm lens with a horizontal resolution of 560 lines, which can realize infrared video monitoring of about15m, and is mainly used in indoor 24-hour monitoring places such as corridors, aisles and gates.
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