光学面形的轮带光学抛光方法研究

李宁; 尹自强; 田富竟

光学面形的轮带光学抛光方法研究

1.
国防科技大学机电工程与自动化学院,湖南长沙,410073

详细信息

通讯作者:
李宁（1988-），男，满族，吉林四平人，硕士研究生，主要从事超精密加工与检测技术研究工作. Email：lightningzlzq@126.com

中图分类号: TN205; TH161
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出版历程
- 刊出日期: 2014-01-15

Optical belt polishing for optical surface

1.
College of Mechatronic Engineering and Automation,National University of Defense Technology,Changsha 410073,China

摘要

摘要: 鉴于光学零件高陡度凹曲面的抛光是光学加工的一个难题，轮带光学确定性抛光方法是解决此类零件抛光的有效方法之一；提出轮带光学抛光技术的原理和方法。研究了轮带光学抛光方法修形的可行性，采用五轴精密数控机床系统对一块直径Ф80 mm的K9玻璃平面样镜进行了修形试验，经过3次迭代修形使其面形精度均方根误差（RMS）由初始的0.109 提高到0.028 ，平均每次收敛率达到1.3。实验结果表明，应用轮带光学抛光技术进行光学镜面修形，面形收敛速度较快，加工精度较高。本实验验证了轮带光学抛光技术的修形能力，为高陡度光学零件的抛光提供了研究基础。
- 轮带光学抛光技术 /
- 光学抛光 /
- 面形精度
Abstract: The high-gradient concave optics polishing is a problem in optical manufacture. The optical belt deterministic polishing method is one of the efficient ways to solve such optics polishing problem. We introduced the theory and method of the optical belt polishing technique, studied the feasibility of figuring the optical surface with the optical belt polishing method. To demonstrate an optical belt polishing process, a 80 mm K9 glass plane mirror was processed on a 5axis precise computer-numerically-controlled (CNC) machine. Its surface figure accuracy root-mean-square (RMS) was improved from initial 0.10 9 (= 632.8 nm) to final 0.02 8 through three ion beam polishing (IBF) processes, and the mean iterative convergence ratio was 1.3. The result shows that the polishing method has rapid convergence rate as well as machining accuracy on surface figuring. This experiment proves that the optical belt polishing can figure this kind of optical glass, which lays the foundation for figuring high-gradient optics.
- optical belt polishing technique /
- optical polishing /
- surface accuracy

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参考文献(1)

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