aspherical optics
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2021 ◽  
Author(s):  
Changsheng Li ◽  
Lin Sun ◽  
Zhaoxiang Chen ◽  
Jianfang Chen ◽  
Qijing Lin ◽  
...  

Abstract Precision grinding is the key process to meet the heavy demands of large-aperture aspherical optical elements in the fields of laser nuclear fusion devices, large-aperture astronomical telescopes and high-resolution space cameras. In this study, the arc envelope grinding process of large-aperture aspherical optics was investigated using the CM1500 precision grinding machine with a maximum machinable diameter of Φ1500 mm. The analytical form error models of aspherical workpiece induced by wheel setting errors were established for both parallel grinding and cross grinding. Result show that the form error is much more sensitive to the wheel setting error along the feed direction than that along the lateral direction. It is a bilinear function of the feed-direction wheel setting error and the distance to optical axis. Based on the above analysis, a method to determine the wheel setting error is proposed. The grinding tests were then performed with the wheel accurately aligned. By using a newly proposed partial error compensation method with an appropriate compensation factor, a form error of 3.4 µm PV for a Φ400 mm elliptical K9 glass surface was achieved.



2020 ◽  
Vol 91 (7) ◽  
pp. 075114
Author(s):  
Zhuo Zhao ◽  
Bing Li ◽  
Xiaoqin Kang ◽  
Jiasheng Lu ◽  
Xiang Wei ◽  
...  


Optik ◽  
2020 ◽  
Vol 206 ◽  
pp. 164368
Author(s):  
Shiwei Liu ◽  
Hongxiang Wang ◽  
Qinghua Zhang ◽  
Jing Hou ◽  
Bo Zhong ◽  
...  




2015 ◽  
Vol 23 (4) ◽  
pp. 1019-1026
Author(s):  
范敏 FAN Min ◽  
刘凤 LIU Feng ◽  
王佩 WANG Pei ◽  
石为人 SHI Wei-ren


2014 ◽  
Vol 26 (5) ◽  
pp. 52012
Author(s):  
袁志刚 Yuan Zhigang ◽  
唐才学 Tang Caixue ◽  
陈贤华 Chen Xianhua ◽  
侯晶 Hou Jing ◽  
郑楠 Zheng Nan ◽  
...  


2009 ◽  
Vol 48 (19) ◽  
pp. 3760 ◽  
Author(s):  
B. Sassolas ◽  
R. Flaminio ◽  
J. Franc ◽  
C. Michel ◽  
J.-L. Montorio ◽  
...  


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