In this paper , we summarize the present testing status of optical aspheric surface , expound the principle of laser wavelength scanning interference testing method , and analyze the laser that can be tuned , and we also study the change of wavelength . further more , we achieve the elementary design of experiment device , and curtly introduce the method and principle for interference fringe processing 本文对目前国内外的光学非球面的测量现状作了概略的叙述，给出了激光波长扫描干涉测试方法的原理，对波长可调谐的激光光源进行了分析，对激光器波长的变化进行了研究，对实验装置进行了初步的设计，并对干涉条纹图处理的方法和原理进行了简单的介绍。
In this paper , on basis of the current machining state , a testing principle on aspheric surface is put forward to , the principle is a kind of touching method by testing the meridian of aspheric surface and comparing it with the theoretical curve , so surface figure error is got . according to this principle , mechanical structure is designed and electric - control system is researched 本文首先基于现阶段非球面的加工状况，提出了用接触式检测非球面的子午面面形曲线并与理论曲线相比较，从而得到非球面面形误差的检测原理，并根据该原理进行了机械结构的总体设计和电控系统的研究。
Magnetorheological finishing ( mrf ) is a newly developed optical machining method , which can achieve fine - finished optical apparatus efficiently . combining with electro - magnetics , hydrodynamics and chemistry , mrf has been applied in optical machining . plane surface , sphere and asphere made of different optical materials can be machined 它将电磁学、流变学、化学综合作用于光学加工中,可以实现对光学器件的高效精密抛光,是获得超光滑光学表面的理想工艺之一,目前已经被应用于对平面、球面、非球面的超精密加工,可加工材料范围涵盖了光学玻璃、微晶玻璃、光学晶体等多数光学材料。
The reasons to choose aspherical grads method as the principle were presented . the two spheres which were gotten from aspherical grads method and least square method were analyzed by fem software , and the deviation with the wanted aspherical surface and the maximum stress were compared under same confined condition , same loading position and loading points . also , we proved that the sphere gotten from aspherical grads method has less surface error and stress after deformation 用有限元软件分别对非球面变化梯度法和最小二乘法所获球面进行了分析,比较两种球面在相同边界条件、相同加载位置和个数下,与所需非球面的面形误差和应力的大小,证明了用非球面变化梯度法所获得的球面在变形后,面形精度更高,应力更小。
The mathematic model of the ultra - thin spherical mirror is to be treated as elastic thin shell . then the predigested model , i . e . , bended beam , used in qualitative analysis was proposed , and its deflection and stress formulas under the freely supported condition were set up . based on an off - axis aspherical primary mirror , the relationship of aspherical surface error ( rms ) in tangential plane with bended beam ’ s radius r , position s of concentrated load p and geometry length l of arc was analyzed 根据这一设想,本文建立了超薄镜的数学模型?薄壳,并提出了强制力作用下超薄镜的简化模型?曲梁,推导了曲梁在简支情况下受力变形的挠度公式,并结合一个实例,计算出曲梁变形后与所需非球面的面形残差( rms )在子午方向与曲梁弧长l 、曲梁半径r及集中力位置s的关系及满足面形精度的r和s范围,分析了弧矢方向的rms ,得出了同时满足子午和弧矢方向面形要求的l 、 r和p 。
The data formats of optical design software ( code v ) and optical cnc machines are investigated . based on the function of optical design software that can output documents with file type of txt , we developed the software in visual c + + used to control optical manufacture process . the software can find parameters of curve surfaces from the documents , handle the data stream of optical design software , the technological parameters of optical manufacture machines and surface error data of talysurf , and simulate the manufacture process 研究光学设计软件( codev )和光学cnc制造设备的数据格式，利用光学设计软件的文档输出功能，采用vc + +编制一个能从上述文件中自动发现曲面方程的接口，处理光学软件数据流、光学设备工艺参数以及轮廓仪的面形检测数据，仿真加工过程，生成用于光学加工的控制代码实现非球面的铣磨和抛光，实现光学cad cam一体化制造。
