A prediction algorithm for the smoothing process of large-aperture optical components with complex periodic middle-spatial frequency errors

2021 ◽  
Author(s):  
Jing Hou ◽  
Shiwei Liu ◽  
Xianhua Chen ◽  
Qinghua Zhang ◽  
Jian Wang ◽  
...  
Keyword(s):  
Spatial Frequency ◽  
Prediction Algorithm ◽  
Optical Components ◽  
Large Aperture ◽  
Smoothing Process

Relationship between large-aperture optical components of striated surface shape and focal spot characteristics in the far-field

2015 ◽  
Author(s):  
Zemin Lei ◽  
Xiaoyan Sun ◽  
Xianhua Yin ◽  
Fengnian Lv ◽  
Zhen Zhang ◽  
...  
Keyword(s):  
Focal Spot ◽  
Surface Shape ◽  
Far Field ◽  
Optical Components ◽  
Large Aperture

Cleaning mechanism of particle contaminants on large aperture optical components by using air knife sweeping technology

2017 ◽  
Author(s):  
Longfei Niu ◽  
Hao Liu ◽  
Xinxiang Miao ◽  
Haibing Lv ◽  
Xiaodong Yuan ◽  
...  
Keyword(s):  
Optical Components ◽  
Large Aperture ◽  
Particle Contaminants ◽  
Air Knife

Research on Mid-Large-Aperture Aspherical Optical Components Rapid Powerful NC Polishing Technology

2014 ◽  
Vol 487 ◽  
pp. 413-416
Author(s):  
Feng Ming Nie ◽  
Zhan Guo Li ◽  
Qing Tang Wu ◽  
Shan Li ◽  
Huan Wu ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Optical Glass ◽  
Surface Shape ◽  
Mode Structure ◽  
Processing Efficiency ◽  
Shape Accuracy ◽  
Optical Components ◽  
Large Aperture ◽  
Polishing Path ◽  
Five Axis

This paper introduces a new devices and technology of large-aperture quadratic optical components rapid powerful NC polishing, it has greatly improved the efficiency and precision of aspheric polishing. Through self-designed five-axis CNC polishing machine, to achieve the controlling of rotation, revolution integral rapid powerful polishing head. By optimizing the process parameters, determine a reasonable polishing path and polishing mode structure, to obtain good experimental results. Size 340mm × 340mm aspheric optical glass, surface shape accuracy PV λ / 5, surface roughness Rq 1.2nm, processing efficiency has been effectively improved, surface shape convergence stable.

scholarly journals Measurement of wavefront structure from large-aperture optical components by phase-shifting interferometry

1995 ◽  
Author(s):  
C. Robert Wolfe ◽  
Janice K. Lawson ◽  
Marcia C. Kellam ◽  
Richard T. Maney ◽  
Anthony Demiris
Keyword(s):  
Phase Shifting ◽  
Optical Components ◽  
Large Aperture ◽  
Phase Shifting Interferometry

Automatic damage test benches: from samples to large-aperture optical components

2004 ◽  
Author(s):  
Marc Loiseau ◽  
Laurent Lamaignere ◽  
Roger Courchinoux ◽  
Gerard Raze ◽  
Caroline Sudre ◽  
...  
Keyword(s):  
Optical Components ◽  
Large Aperture

scholarly journals Testing the mid-spatial frequency error of a large aperture long-focal-length lens with CGH

2020 ◽  
Vol 28 (7) ◽  
pp. 9454 ◽  
Author(s):  
Jian-Peng Cui ◽  
Ning Zhang ◽  
Jie Liu ◽  
Di-Long Wu ◽  
Hua Xu ◽  
...  
Keyword(s):  
Spatial Frequency ◽  
Focal Length ◽  
Frequency Error ◽  
Large Aperture ◽  
Focal Length Lens
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