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

Design of Collimatied Wavefront Compensation Test Scheme for Large Aperture Long Focal Length Lens

2015 ◽  
Vol 42 (10) ◽  
pp. 1016002
Author(s):  
蔡红梅 Cai Hongmei ◽  
鄢定尧 Yan Dingyao ◽  
朱衡 Zhu Heng ◽  
鲍振军 Bao Zhenjun ◽  
胡江川 Hu Jiangchuan ◽  
...  
Keyword(s):  
Focal Length ◽  
Test Scheme ◽  
Large Aperture ◽  
Focal Length Lens

Radius measurement of large aperture long-focal-length lens using computer-generated hologram

2021 ◽  
Author(s):  
Jian-Peng Cui ◽  
Zhi-Gang Li ◽  
Zhen-Jun Bao ◽  
Heng Zhao ◽  
Ning Zhang ◽  
...  
Keyword(s):  
Focal Length ◽  
Large Aperture ◽  
Computer Generated Hologram ◽  
Focal Length Lens

scholarly journals Testing the transmitted wavefront of large aperture long-focallength lens using a multizone computer-generated hologram

2019 ◽  
Vol 215 ◽  
pp. 04004
Author(s):  
Jian-Peng Cui ◽  
Ning Zhang ◽  
Jie Liu ◽  
Di-Long Wu ◽  
Hua Xu ◽  
...  
Keyword(s):  
Error Analysis ◽  
Focal Length ◽  
Spatial Filter ◽  
Main Zone ◽  
Large Aperture ◽  
Computer Generated Hologram ◽  
Focal Length Lens

A method for testing the transmitted wavefront of large aperture long-focal-length lens with a multizone computer-generated hologram (CGH) is proposed. The multizone CGH has 5 zones: one main zone for the null testing of long-focal-length lens and four auxiliary zones for the pre-alignment of measured lens. Both 1st order wavefront and 0th order wavefront of CGH are measured, and 0th order wavefront is used to calibrate the substrate error. To verify this test approach, a 450mm×450mm multizone CGH is designed and fabricated for testing the spatial filter lens. Experiments and error analysis are carried out. The results show that the desired precision can be reached with use of CGH.

Novel method for testing the long focal length lens of large aperture

2005 ◽  
Vol 43 (10) ◽  
pp. 1107-1117 ◽  
Author(s):  
Hou Changlun ◽  
Bai Jian ◽  
Hou Xiyun ◽  
Sun Chen ◽  
Yang Guoguang
Keyword(s):  
Focal Length ◽  
Large Aperture ◽  
Focal Length Lens ◽  
Novel Method

scholarly journals Testing the transmitted wavefront of large aperture and long-focal-length lens with computer-generated hologram

2018 ◽  
Vol 26 (21) ◽  
pp. 28067 ◽  
Author(s):  
Jian-Peng Cui ◽  
Ning Zhang ◽  
Jie Liu ◽  
Di-Long Wu ◽  
Hua Xu ◽  
...  
Keyword(s):  
Focal Length ◽  
Large Aperture ◽  
Computer Generated Hologram ◽  
Focal Length Lens

Long focal length and large aperture zoom optical system

2021 ◽  
Author(s):  
Wei-jun Chang ◽  
Bo Zhang ◽  
Ge-ping Cao
Keyword(s):  
Optical System ◽  
Focal Length ◽  
Large Aperture
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