由于现代光学仪器的发展,光学系统日趋复杂,对光学玻璃的性能要求也越来越高。如变焦距镜头,彩色摄影镜头等都要求光学系统对整个可见光谱有较高的透过率,这就需要在光学玻璃上镀宽带多层增透膜。为了保证镀膜的质量,就应有评定和检查镀膜好坏的仪器。 宽带多层增透膜剩余反射率的数值能评定光学玻璃上所镀的多层增透膜的质量。我 Due to the development of modern optical instruments, the optical system is becoming increasingly complicated, and the performance requirements of optical glass are also getting higher and higher. Such as zoom lens, color photography lens, etc. require the optical system has a high transmittance of the entire visible spectrum, which requires the optical glass coated with broadband multi-layer AR coatings. In order to ensure the quality of the coating, it should be assessed and check the coating quality equipment. The value of the residual reflectance of the broadband multilayer AR coatings can be used to assess the quality of multilayer AR coatings on optical glass. I