In figure 4 using a collimated source the lightpipe is 85 % efficient 在插图4中使用平行光源至光管,其有效率达85%。
Older lightpipe applications have typical throughput of 20 to 30 percent 较早的光管应用有20到百分之30的典型生产率。
It has now been proven that using software simulation reduces lightpipe design costs by 30 to 50 % 现下已经证明使用软体仿真使光管设计费用减少了30%到50%。
Used in an application where you are trying to funnel this source into a lightpipe can be tricky and coupling inefficient 在一些应用中你会发现它是难处理和耦合效率不佳的去尝试将光注入光管。
In figure 3 the led source is too dispersive and there is a large light loss at the bend providing only 25 % efficiency in the lightpipe 在插图3中led光源太分散而且有很大的光损失在弯曲部份,这亦使得光管仅能提供25%的效率。