使用高精度三坐标测量仪实现透镜定中心

杜洋; 高志山

doi:10.3788/OPE.20152303.0639

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使用高精度三坐标测量仪实现透镜定中心

现代应用光学 | 更新时间：2020-08-13

- 使用高精度三坐标测量仪实现透镜定中心
- Lens centering using high-precision three coordinate measuring machine
- 光学精密工程 2015年23卷第3期页码：639-644
- 作者机构：
  
  1. 上海卫星工程研究所上海,200240
  2. 南京理工大学电子工程与光电技术学院,江苏南京,210094
- 作者简介：
- 基金信息：
  
  国家973重点基础研究发展计划资助项目(No.2014CB744200)();国家自然科学基金资助项目(No.60977008,No.61377015)();中国科学院
- DOI：10.3788/OPE.20152303.0639
  中图分类号： TH72;TH706
- 收稿日期：2014-07-08，
  
  修回日期：2014-09-04，
  
  纸质出版日期：2015-03-25
- 稿件说明：
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杜洋, 高志山,. 使用高精度三坐标测量仪实现透镜定中心[J]. 光学精密工程, 2015,23(3): 639-644

DU Yang, GAO Zhi-shan,. Lens centering using high-precision three coordinate measuring machine[J]. Editorial Office of Optics and Precision Engineering, 2015,23(3): 639-644
杜洋, 高志山,. 使用高精度三坐标测量仪实现透镜定中心[J]. 光学精密工程, 2015,23(3): 639-644 DOI： 10.3788/OPE.20152303.0639.

DU Yang, GAO Zhi-shan,. Lens centering using high-precision three coordinate measuring machine[J]. Editorial Office of Optics and Precision Engineering, 2015,23(3): 639-644 DOI： 10.3788/OPE.20152303.0639.

摘要

传统的光学测量定中心法受限于光源、转台大小和装调误差传递性而不适用于大口径、多透镜光学系统的装调

为此本文提出了使用三坐标测量仪接触式测定透镜中心的精密机械测量法。介绍了使用三坐标测量仪测量大口径透镜中心偏的原理

即在测量透镜上表面与基准轴等距离各点坐标的基础上拟合得到透镜光轴与基准轴的夹角

从而解算出透镜的中心偏。通过大口径长焦距镜头的装调对该方法进行了检验。检验结果表明:该透镜的装调偏差为6.47"

重复性误差为(1.16×10

-4

)"。该方法将光学测量变为机械测量

利于装调

可在保证装调精度的同时简化装调难度

提升装调效率

满足大口径多透镜光学系统对高精度装调的要求。

Abstract

Due to the limits of light sources

the sizes of rotating platforms and the propagation of assembling errors

traditional methods of lens centering are not suitable for the assembly of large-aperture and multi-lens optical systems. Thus a new high-precision mechanical measurement method for lens centering was proposed based on a three Coordinate Measuring Machine (CMM). Principles and algorithms for measuring off-centering of the large aperture lens using the high-accuracy CMM were introduced. In the measurements

the angle between the optic axis of lens and the reference axis was calculated after the figure fitting of the measuring points

and then the centering of deviation was calculated. The method was verified by the assembling of a long focal length and large aperture imaging system. The assembling result shows that the lens off-centering is 6.47" and the repeatability error is (1.16×10

-4

)". As changing the optical measurement into a mechanical measurement

this proposed method ensures the accuracy

reduces the difficulty and improves the efficiency of lens assembly. It is able to be applied to the high-precision assembly of large aperture transmitting optical systems.

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references

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