At present, explosion-proof cameras can last as long as ten years in service life. Can infrared lamps be used for ten years? Today we come to understand the working principle and service life of the infrared lamp.
At present, there are three important types of infrared light production: First, halogen light, two, multi-chip LED, three, single-chip LED.
Explosion-proof camera infrared lamp working principle and service life Halogen lamp energy consumption is high, the heat is large, is the infrared lamp used in the traditional market, the application life is short, so it is difficult to suitable explosion-proof camera supporting applications.
There are also two kinds of multi-chip LEDs, one is containing 4 to 8 chips; the other is an array of light-emitting chips, containing 10 to 30 chips. Why do multiple chips? The potential reality is that the interval between IR lamps is not enough because the energy is not enough, more chips are gathered together, of course, the energy is large, so the irradiation interval is usually farther. If this can guarantee the acceptance rate of the infrared light, it is right, but under the premise that the receiving rate can not be guaranteed, more infrared light chips will only cause the operation temperature to be too high and affect the service life, and can not really improve the infrared light. Irradiation interval. In general, multi-chip infrared cameras are still based on ordinary halogen lamps in terms of performance, but multi-chip LEDs have no light-emitting focus because of their inherent structural defects. The light-emitting optical system is unreasonable and the useful light efficiency is also low. For example, an arrayed LED has a current of 1000 mA or more, and the root is only a penny coin size, and heat dissipation becomes a problem. And we all know that the technology, LED is the most afraid of high fever, ah, a high temperature is not bad it is difficult. At the same time, the production requirements of multi-chip LEDs are very strict. Each chip cannot have a slight difference in performance. Otherwise, if one chip is broken, the overall chip LED will be damaged. In general, the application of explosion-proof infrared cameras, the life of the existing multi-chip technology LED is far from enough.
Explosion-proof camera infrared light working principle and service life Single-chip LED production process is simple, quality is easy to guarantee, low heat, light emitting optical system is reasonable, is the ideal device for explosion-proof infrared camera infrared light, the actual application life of up to 100,000 hours the above. Therefore, natural technology is biased towards single chips. However, single-chip infrared lamps still have many constraining factors. For example, some LED chips have a very low level, and impurities exceed the standards; some production processes are closed, and there are leakage currents; some super power applications, rated at 20mA, are applied at more than 50mA; Some do not maintain the circuit, or the circuit design is not reasonable, these will lead to a single-chip LED infrared light quickly broken.
Explosion-proof camera infrared light working principle and service life To protect the life of infrared lamps, we must first use high-grade LED chips. High-grade chips have large power, good consistency, high luminous efficiency, and low calorific power. A high-grade LED is 10 times better than an ordinary LED, and the price is higher. Second, the optical system design must be reasonable, the light should be uniform, the utilization rate should be high, and the heat dissipation should be fast. Third, we must strictly control the operating voltage. The LED is very sensitive to voltage, and the LED die will burn off when the voltage is slightly higher. However, if the voltage is lower, the amount of light emission will be greatly reduced. It is best to match high-quality switching power supply. The AC input voltage can be better regulated from 170 volts to 270 volts to adapt to the harsh power supply environment. Fourth, the input power line is preferably made of anti-high/low temperature, ultra-soft, and anti-twist. There is a manufacturer of infrared light, the input power cord can be applied at a temperature of minus 60 degrees Celsius, 250 degrees above zero, and minus four or fifty degrees of cable is still soft and silky. This kind of product is trustworthy.
Therefore, there are also tips on the selection of infrared lamps for explosion-proof cameras. After understanding this knowledge, I believe that in the future selection of explosion-proof cameras, it will help you.
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