【摘要】 在光学镀膜中,分光光度计常被用来对光学零件表面所镀膜层的透过率、相对反射率、绝对反射率等光特性,以及对所镀膜层的带宽、中心波长等进行测量。主要介绍Lambda 900分光光度计相对反射的测量方法;并介绍了通过增加光阑、附件及改进测量、计算方法等途径实现对自聚焦透镜及小光学元件表面减反射膜相对反射率的测量。测量精度达到设备原有测量精度要求。更多还原

【Abstract】 In optics coating process,spectrophotometer often be used to measure the optics characteristic such as transmittance,relative reflectance,absolute reflectance,and coating’s bandwidth,center wavelength of the surface of the optics accessory.The method of the relative reflect of Lambda 900 spectrophotometer is introducesd which is the ways to measure the interface coating relative reflectance of Grin-lens and small optics accessory through add diaphragm accessory as well as improve the measurement calculate method an so on.,The new measurement precision can reach the instrument’s requirement.更多还原