LED光输出特性随管芯封装位置变化  

Dependence of Optical Output Characteristics on the Position in the Vertical Axis of LED Chip

作　　者：林秀华[1] 江炳熙[1] 

机构地区：[1]厦门大学物理系,厦门361005

出　　处：《半导体光电》1992年第2期151-155,共5页Semiconductor Optoelectronics

摘　　要：借助2001型程控 LED 光电参数测试仪,分别测量了φ5和φ3两种系列 LED在相同封装条件下,LED 管芯位置高度不同对法向光输出强度及其空间角分布的影响,并从几何光学成像原理进行了分析。The relationship between the position of LED chip in the vertical axis direction and the optical characteristics is reported.Under the same package con- dition,normal luminous intensity and its angular distribution are measured for a series ofφ3 andφ5 LEDs as a function of the position of LED chip in the vertical axis direction using model-2001 automatic optoelectronic parameter instru- ment and angular distribution equipment.The experimental results are analyzed on the basis of the principle of geometrical optics.

关 键 词：发光二极管 法向光谱 几何光学 

分 类 号：TN383[电子电信—物理电子学]