内渐进多焦点镜片数控车床系统研究-Core.PDFVIP

47, 061201(2010) Laser Optoelectronics Progress 2010 doi: 10. 3788/ lop47.061201 内渐进多焦点镜片数控车床系统研究 黄海滨 郭隐彪 谢书童 张世汉 ( , 36100 ) ( PAL) ( NC) , CPU ( PID) , 1 m, 2 m! ∀ ! ∀! ∀ ! ∀ 4 , , , , ; ; ; ; ; O436 OCIS 120. 4640 120.4 70 A Research on Numerical Control Lathe System of Interior Progressive Addition Lenses Huang Haibin Guo Yinbiao Xie Shutong Zhang Shihan ( Depart m en t of Mechan ical and Electrical En gin eerin g, Xiam en Un iversity , Xiam en , Fujian 36100 , Chin a ) Abstract An interior progressive addition lense (PAL) numerical control ( N ) lathe system was designed. A double PU structure and a voice coil motor were used to realize highprecision lathe machining. By adjusting the proportionintegraldifferential (PID) parameter for all the threeaxis motor, taking the closedloop control technique and error compensation, we limit the positioning accuracy to 1 m and the repetitive positioning accuracy to 2 m. The shaping method of the interior PAL with N turning was studied, and the lens profile was divided into four regions, near vision, far vision, astigmatism and gradation. The corresponding mathematical expressions were proposed. Basedon these, we developed an interior PAL#s profile dataprocessing software, realizedthe interior PAL profile software offline interpolation, and provided cutting tool control data for the mirror surface processing. Key words optical fabrication; interior progressive addition lense; voice coil motor; positioning accuracy; shaping method; cutting tools data 1 [ 1] , 2010 3 , , , , , , ( PAL) , , 40%[ 2] , , , , , : 20090