Quick-adjusting Method of Interference Fringes and Flatness Calculation of Optical Flat Working SurfaceGONG Mei-wang, LIU Wen-jun 1. Qingdao Institute of Measurement and Testing , Qingdao 266071, China; 2. Qingdao Water Conservancy Survey Design Institute Limited Company, Qingdao 266023, ChinaAbstract:Flatness of optical flat working surface was verified by use of plane equal-thickness interferometer. In verification, 3 to 5 interference fringes must be adjusted in measured area, then flatness of optical flat working surface was calcuylated based on measuring principle and foroula. Quick adjusting method of interference fringes and correct quotation method of standard optical flat flatness are analyzed.[著者文摘]
