The application of thermal imaging cameras in LED companies to detect the temperature distribution of the LED lamp chip. The actual life of the LED is inversely proportional to the operating temperature. For example, the service life of the LED is 10000 hours at 74 ℃, 25000 hours at 63 ℃, and less than 50 ℃. , It can be 50000 hours. The fundamental reason is that the photoelectric conversion rate of the LED is extremely poor, only about 15% to 20%, and the rest is converted into heat energy, so it is very important to control the temperature of the LED wick. However, the chip of the LED lamp is small, and it is very inconvenient to detect the surface temperature with a thermocouple spot, and the surface temperature can be detected very conveniently by using an infrared thermal imager.
A stationery item used to protect documents.Inside pages are typically 20, 30, 40, 50 pages, with single pockets and double pockets.The size of the brochure is generally A4, but also B5.Cover is generally PP, plus a variety of printing patterns.There is a built-in information card in the middle, which can be handwritten notes.General use in schools and offices
Display Books,Plastic Display Book,Solid Cover Display Book,Display Clear Book
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