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JINLING Chen

KIM Chen
 
Chi ming Electronics Co., Ltd. was established in Taiwan in 1984. Has nearly 38 years of experience. Manufacturing LED car lights, LED truck lights. Serving the needs of customers is the most important goal.

News & Events>>Research & Develop

Subject: Automotive LED-To increase the light extraction efficiency LED chip
2010-01-08



Surface roughening technology is man-made device will be smooth and flat surface to make graphics, making a light surface is no longer a plane, the angle of incidence of light is no longer out of compliance with the strict law of refraction, and thus resorted to shooting the light generated in a smooth diffuse. This issue of the light from the active region would be greater probability of a shot, the light extraction efficiency. The general practice is to use etching methods in a number of devices made out of smooth hills, control the density and shape of the hill, you can raise up to improve the efficiency of 50% -70% light.