4 ways to solve the heating problem of white LED lamp beads
In the past, in order to obtain sufficient white light LED beams, LED manufacturers have developed large-sized LED chips in an attempt to achieve the desired goal in this way. However, in fact, when the applied power of the white LED continues to exceed 1W, the light beam will decrease, and the luminous efficiency will decrease by 20~30%. In other words, if the brightness of white LEDs is several times larger than that of traditional LEDs and the power consumption characteristics exceed those of fluorescent lamps, the following four major issues must be overcome: suppressing temperature rise, ensuring service life, improving luminous efficiency, and equalizing luminous characteristics.
1. The solution to the heating problem is to reduce the thermal impedance of the package;
2. The way to maintain the service life of the LED is to improve the shape of the chip and use a small chip;
3. The way to improve the luminous efficiency of LED light-emitting diodes is to improve the chip structure and use small chips;
4. As for the method of homogenizing the luminous characteristics, it is to improve the packaging method of LED, and these methods have been developed one after another.
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