New strong photoelectric launched the world's brightest single package, point light source LED

In August 14th 2007, the new strong launch of super power and multi chip, single package Xinqiang launchers. EZ1000 high power transmitter chip the use of CREE and in China just (Cree company) for assembly, the luminous flux in 20W, 720mA under the maintenance efficiency of 50lm/W junction temperature maintained at 70 degrees. The new strong said its own system level packaging LED packaging method has been able to produce according to customer needs to design a point light source engine, and can provide 1000lm to maintain the luminous flux. Combined with the heat pipe cooling module based on its own, the junction temperature of new strong LED transmitter is controlled at 70 DEG C. Because of its efficiency in the light effect 350 under mA 70 lm/W, under 20W (for junction temperature of 25 DEG C) the initial luminous flux of up to 1100lm. The initial decay rate of lumen output was only 9%. The heat resistance of the PN junction of the emitter to the shell (Rjc) is 0.5 /W, and the thermal resistance (Rca) of the shell to the ambient air is DEG C /W. Because the measured system Rjc is 2.25 /W, the temperature difference between PN junction and ambient air is about 45. By using the system level packaging method, LED PN generated heat can effectively suction through heat pipe, and the aluminum fins spread into the air.

Source: China Semiconductor Lighting Network