New High Intensity LED Light Sources and Their Impact on Automotive Front Lighting Setups
LEDs are today a state of the art technology for automotive headlamps.Devices deliver the required 1000 Im for ECE low beams and deliver luminance in the range of 80 Mcd/m2.Novel prototypes of white high current LEDs of 600 Im/mm2 and a peak luminance of 224 Mcd/m2 are used to built a headlamp acc.ECE R112.An innovative thermally optimized package technology enables operating current densities of 3 A/mm2.The low beam reflector of only 30 mm x 50 mm uses a single chip LED delivering of more than 1100 Im in the hot stabilized status at 6 Amperes.A 3 Chip SMT multi chip LED for the high beam is supported by a high current LED spot to get to the legal limits of 215 kcd.Discrete electronics allows to switch and PWM dim the individual light functions.
High Current LED,High Luminance LED,small aperture low beam high intensity high beam spot
Pan George Stefan Groetsch Alexander Guenther
OSRAM Opto Semiconductors (China)Co.,Ltd, No.18 Xi Zang (M.) Road, Shanghai, P.R.China OSRAM Opto Semiconductors GmbH, Leibnizstr.4, D-93055 Regensburg, Germany
国内会议
苏州
英文
132-141
2015-06-17（万方平台首次上网日期，不代表论文的发表时间）