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

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.

Far-field focal spot measurement method based on orthogonal wedges

2012 ◽  
Vol 24 (11) ◽  
pp. 2543-2548 ◽  
Author(s):  
贺元兴 He Yuanxing ◽  
李新阳 Li Xinyang
Keyword(s):  
Measurement Method ◽  
Focal Spot ◽  
Far Field

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

scholarly journals An improved schlieren method for measurement and automatic reconstruction of the far-field focal spot

PLoS ONE ◽  
2017 ◽  
Vol 12 (2) ◽  
pp. e0171415
Author(s):  
Zhengzhou Wang ◽  
Bingliang Hu ◽  
Qinye Yin
Keyword(s):  
Focal Spot ◽  
Far Field ◽  
Schlieren Method
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