Spectroradiometric measurements of pulsed high power leds
So far there is no possibility to measure the temperature of the P/N junction directly. Because of the not very well defined thermal resistance between LED and heat sink thermal and electrical measurement conditions are often irreproducible. The concept of pulsed LED measurement allows the user to determine forward voltage, photometric and colorimetric values without any influence of self heating effects of the LED at a given junction temperature. Later in continuous mode the forward voltage can be used as a reference for the temperature of the P/N junction and the thermal resistance of the LED package can be calculated.
Thomas N(a)gele
Instrument Systems GmbH, Neumarkter Str. 83, 81673 Munich, Germany
国际会议
26th Session of the CIE(国际照明委员会（CIE）第26届大会)
北京
英文
218-221
2007-07-04（万方平台首次上网日期，不代表论文的发表时间）