Imaging and image restoration of an on-axis three-mirror Cassegrain system with wavefront coding technology

被引：8

作者：

Guo, Xiaohu ^{[1
]}

Dong, Liquan ^{[1
]}

Zhao, Yuejin ^{[1
]}

Jia, Wei ^{[2
]}

Kong, Lingqin ^{[1
]}

Wu, Yijian ^{[1
]}

Li, Bing ^{[3
]}

机构：

[1] Beijing Inst Technol, Sch Optoelect, Beijing Key Lab Precis Optoelect Measurement Inst, Beijing 100081, Peoples R China

[2] Typonteq Co Ltd, Beijing 100081, Peoples R China

[3] Hebei Normal Univ, Coll Informat Technol, Shijiazhuang 050024, Hebei, Peoples R China

来源：

APPLIED OPTICS | 2015年 / 54卷 / 10期

基金：

中国国家自然科学基金;

关键词：

EXTENDED DEPTH; ABERRATION; FIELD;

D O I：

10.1364/AO.54.002798

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Wavefront coding (WFC) technology is adopted in the space optical system to resolve the problem of defocus caused by temperature difference or vibration of satellite motion. According to the theory of WFC, we calculate and optimize the phase mask parameter of the cubic phase mask plate, which is used in an on-axis three-mirror Cassegrain (TMC) telescope system. The simulation analysis and the experimental results indicate that the defocused modulation transfer function curves and the corresponding blurred images have a perfect consistency in the range of 10 times the depth of focus (DOF) of the original TMC system. After digital image processing by a Wiener filter, the spatial resolution of the restored images is up to 57.14 line pairs/mm. The results demonstrate that the WFC technology in the TMC system has superior performance in extending the DOF and less sensitivity to defocus, which has great value in resolving the problem of defocus in the space optical system. (C) 2015 Optical Society of America

引用

页码：2798 / 2805

页数：8

共 17 条

[1] Aberration-free superresolution imaging via binary speckle pattern encoding and processing
Ben-Eliezer, Eyal
Marom, Emanuel
[J]. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 2007, 24 (04) : 1003 - 1010
[2] Chen Hong, 2009, Optics and Precision Engineering, V17, P2952
[3] EXTENDED DEPTH OF FIELD THROUGH WAVE-FRONT CODING
DOWSKI, ER
CATHEY, WT
[J]. APPLIED OPTICS, 1995, 34 (11): : 1859 - 1866
[4] Dowski ER, 2002, P SOC PHOTO-OPT INS, V4736, P116, DOI 10.1117/12.477572
[5] Gonzalez R. C., 2007, DIGITAL IMAGE PROCES, P126
[6] Optimizing design and precision experiment of focusing mechanism in lightweight space camera
Jia X.-Z.
Wang D.
Zhang L.
An Y.
Yao J.-S.
Jin G.
[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering, 2011, 19 (08): : 1824 - 1831
[7] Design and optimization of aberration and error invariant space telescope systems
Kubala, K
Dowski, E
Kobus, J
Brown, B
[J]. NOVEL OPTICAL SYSTEMS DESIGN AND OPTIMIZATION VII, 2004, 5524 : 54 - 65
[8] Stationary phase analysis of generalized cubic phase mask wavefront coding
Liu, Ming
Dong, Liquan
Zhao, Yuejin
Hui, Mei
Jia, Wei
[J]. OPTICS COMMUNICATIONS, 2013, 298 : 67 - 74
[9] Lu E, 2009, CHIN OPT, V5, P364
[10] Three-dimensional tomography using a cubic-phase plate extended depth-of-field system
Marks, DL
Stack, RA
Brady, DJ
van der Gracht, J
[J]. OPTICS LETTERS, 1999, 24 (04) : 253 - 255

← 1 2 →