Due to the medium vision is not perfect, so the light in the process of transmission distortion interact with each other.
由于异向介质是不完善的，光线在传播过程中相互作用互相扭曲。
2
The character of high speed light pulse distortion and the fluency of the amplified spontaneous emission on the SNR gain under high power signal and pumper are analyzed.
The LED light source and lenses with little distortion are selected as light sources and lens of imaging for inspection system, which provide high quality images during precise inspection.