,2018.РР ExperimentalstudyonpolarizationcharacteristicsofLEDР anditsapplicationinmachinevisionРР CAOLanРРР (ElectronicEngineeringDepartment,ZhangzhouInstituteofTechnology,363000,Zhangzhou,Fujian,PRC)РР AbstractР :Thesubjecthastestedfiveoflightsourcestoappealpolarizationintensitychangesandchar-Рacteristicsofthemonthepolarizationcharacteristictest.TheexperimentalresultdiscoversthatithasgotРideallinearlypolarizedlightbyapplyingmonochromaticlightsourceLED withpolarizationandanalyzer,Рandthishasalsoimprovedsignificantlythereflectionofpictures.Р KeywordsР :LED;polarizationcharacteristics;machinevision;polarizationimaging