光学零件，又称光学元件。光学系统的基本组成单元。大部分光学零件起成像的作用，如透镜、棱镜、反射镜等。
Aspheric optical parts manufacturing is an acknowledged difficulty and it is uneconomical.
非球面光学零件加工是当前国内外公认的难题。
参考来源 - 轨迹成形法加工非球面光学零件原理的研究With the ever-increasing demands on optical system performances, requirements for aspheric optical components are more and more critical, which involve aperture, relative aperture, accuracy, lightweight extent, manufacturing efficiency and cost.
随着光学系统性能要求的不断提高,对非球面光学零件口径、相对口径、加工精度、轻量化程度、加工效率和生产成本等方面都提出了更高要求。
参考来源 - 光学非球面坐标测量关键技术研究·2,447,543篇论文数据，部分数据来源于NoteExpress
一种测量非球面光学零件面形的新方法。
A new method of surface shape measurement of aspherical optical components.
提高光学零件研抛加工精度的关键是优选工艺参数。
Selecting processing parameters is the key to increase polishing accuracy of optical elements.
尤其是大型高精度的非球面光学零件，面形检测难度更大。
The surface testing of aspheric and optical part is especially difficult, which is big scale and high precision.
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