Precision manufacture of aspheric optics by robot-based bonnet polishing

2020 ◽  
Author(s):  
Bo Zhong ◽  
Wenhui Deng ◽  
xianhua chen ◽  
Nan Zheng
Keyword(s):  
Bonnet Polishing ◽  
Aspheric Optics

Research on data fusion technology of the online monitoring system for optics bonnet polishing

2016 ◽  
Vol 232 (8) ◽  
pp. 1436-1443
Author(s):  
Dongxu Zhang ◽  
Yinbiao Guo ◽  
Yongqiang Hong ◽  
Zengguang Hou ◽  
Ri Pan
Keyword(s):  
Data Fusion ◽  
Data Acquisition ◽  
Online Monitoring ◽  
Processing Condition ◽  
Fusion Method ◽  
Technological Parameters ◽  
Bonnet Polishing ◽  
Asynchronous Sampling ◽  
Aspheric Optics ◽  
Ultra Precision

Bonnet polishing has been successfully used for ultra-precision machining of the large-aperture aspheric optics. To accomplish online monitoring of executive condition of the removing function and state of the polishing machine, key technological parameters and processing condition factors need to be acquired in real time and coupled back. A novel data fusion method which combines hardware synchronous signal and correcting algorithm based on the principle of linear extrapolation is proposed in allusion to data acquisition distortion caused by asynchronous sampling frequency and communication delay between different systems. The estimate values are obtained by dynamically correcting original acquired data, and the upper bound of the error is deduced with the speed and the acceleration of the signal. The simulation results showed that the data fusion method can significantly reduce the error of data acquisition. The experimental results confirmed that the data fusion method can be effectively applied to monitor the optics bonnet polishing process online.

Refracting Replica Aspheric Optics

1976 ◽  
Vol 15 (3) ◽  
pp. 153197 ◽  
Author(s):  
H. Howden
Keyword(s):  
Aspheric Optics

Image processing for alignment of aspheric optics without fiducials

2010 ◽  
Author(s):  
Babak N. Saif ◽  
Perry E. Greenfield ◽  
Warren Hack ◽  
Ritva A. Keski-Kuha ◽  
Lee D. Feinberg ◽  
...  
Keyword(s):  
Image Processing ◽  
Aspheric Optics

Removing Characteristics of Ultraprecise Bonnet Polishing on Spatial Optics Elements

2009 ◽  
Vol 29 (3) ◽  
pp. 811-817 ◽  
Author(s):  
李洪玉 Li Hongyu ◽  
张伟 Zhang Wei ◽  
于国彧 Yu Guoyu
Keyword(s):  
Bonnet Polishing

Aspheric optics at different quality levels and functional need

1999 ◽  
Author(s):  
Kurt B. Becker ◽  
Bernd Doerband ◽  
Roland Loercher ◽  
Michael Schmidt
Keyword(s):  
Aspheric Optics
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