Working principle of traditional UV mercury lamp:
The UV lamp is a gas discharge lamp. The gas discharge lamp is divided into arc discharge and glow discharge. The commonly used UV lamp in UV curing is arc discharge lamp. Its working principle is: adding a certain amount of high purity mercury (mercury) into a vacuum quartz tube , By providing a voltage difference (voltage drop) to the electrodes at both ends, ion discharge is generated, thereby generating ultraviolet radiation.
In the pn junction of semiconductor materials, when the injected minority carriers and majority carriers recombine, the excess energy is released in the form of light, thereby directly converting electrical energy into light energy.
The difference between UV LED point light source and traditional UV lamp:
1. Ultra-long life of UV LED: The service life is more than 10 times that of traditional mercury lamp curing machine.
2. UV LED is a cold light source, no thermal radiation, low temperature rise on the surface of the illuminated product, which solves the long-term thermal damage problem in optical communication and liquid crystal production.
3. The low heat of UV LED can solve the problem that the mercury lamp printing equipment heats up and the staff is intolerable.
4. The UV LED lights up instantly, and the UV output of 100% power can be reached immediately without preheating.
5. The service life of UV LED is not affected by the number of opening and closing.
6. UV LED has high energy, stable light output, good uniform irradiation effect, and improved production efficiency.
7. UV LED can customize the effective irradiation area, the length is from 7mm to 1000mm.
8. UV LED does not contain mercury and does not produce ozone. It is a safer and more environmentally friendly alternative to traditional light source technology.
9. UV LED has low consumption, power consumption is only 10% of traditional mercury lamp curing machine, which can save 90% of power. A UV LED point light source is 50W.
10. The maintenance cost of UV LED light source is almost zero, and it is not easy to break.
