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浏览/检索结果: 共11条,第1-10条 帮助

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Post Optical Freeform Compensation Technique for Machining Errors of Large-Aperture Primary Mirror 期刊论文  OAI收割
PHOTONICS, 2023, 卷号: 10, 期号: 7
作者:  
Huang, Cheng;  Li, Jinpeng;  Cai, Zhaohan;  Yu, Jiadong;  Xie, Yongjun
  |  收藏  |  浏览/下载:16/0  |  提交时间:2023/08/18
Compact catadioptric optical system with long focal length large relative aperture and large field of view 会议论文  OAI收割
Beijing, PEOPLES R CHINA, 2020-11-30
作者:  
Shen, Yang;  Wang, Hu;  Xue, Yaoke;  Xie, Yongjie;  Lin, Shangmin
  |  收藏  |  浏览/下载:27/0  |  提交时间:2021/06/04
Residual aberration correction method of the three-mirror anastigmat (TMA) system with a real exit pupil using freeform surface 期刊论文  OAI收割
Optics and Laser Technology, 2018, 卷号: 106, 页码: 100-106
作者:  
Meng, Q. Y.;  Wang, H. Y.;  Yan, Z. Q.
  |  收藏  |  浏览/下载:20/0  |  提交时间:2019/09/17
Simple and fast spectral domain algorithm for quantitative phase imaging of living cells with digital holographic microscopy 会议论文  OAI收割
conference on three-dimensional and multidimensional microscopy - image acquisition and processing xxiv, san francisco, ca, 2017-01-30
作者:  
Min, Junwei;  Yao, Baoli;  Ketelhut, Steffi;  Kemper, Bjoern
收藏  |  浏览/下载:97/0  |  提交时间:2017/09/07
Wave-front curvature compensation of polarization phase-shifting digital holography 期刊论文  OAI收割
optik, 2012, 卷号: 123, 期号: 17, 页码: 1525-1529
作者:  
Min, Junwei;  Yao, Baoli;  Gao, Peng;  Ma, Baiheng;  Yan, Shaohui
收藏  |  浏览/下载:24/0  |  提交时间:2012/06/29
Experimental validation of closed-loop adaptive optics based on a self-referencing interferometer wavefront sensor and a liquid-crystal spatial light modulator 期刊论文  OAI收割
OPTICS COMMUNICATIONS, 2010, 卷号: 283, 期号: 14, 页码: 2782-2786
作者:  
Bai, Fuzhong;  Rao, Changhui
收藏  |  浏览/下载:23/0  |  提交时间:2015/09/21
The research on distortion measurement and compensation technology in photoelectricity measurement system (EI CONFERENCE) 会议论文  OAI收割
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China
Hong F.; Mujun X.; Zhiqian W.
收藏  |  浏览/下载:21/0  |  提交时间:2013/03/25
Thermal difference analysis and athermalization design of infrared optical system (EI CONFERENCE) 会议论文  OAI收割
Optical Design and Testing IV, October 18, 2010 - October 20, 2010, Beijing, China
作者:  
Zhang X.;  Zhang X.;  Zhang X.
收藏  |  浏览/下载:32/0  |  提交时间:2013/03/25
When infrared optical system works in a large temperature range  the thermal effect of optical lens and optical tube will produce image plane shift and lead to imaging quality deterioration. In order to eliminate the thermal aberration  the athermalization design principles of infrared optical system were introduced  and some commonly used methods of thermal difference compensation were described. Proceeding from single lens  the thermal difference caused by temperature changing was analyzed  and the relationship between temperature and focus shift was obtained. Considering optical tube thermal expansion  a set of equations to estimate the thermal difference of lens group was given. Finally  an infrared optical imaging system that can work under the temperature range of -40C to 60C was design according to athermal technique  in which a new mechanical passive temperature compensation was proposed. Through simulation  the athermalization design could make imaging plane shift the smallest. The simulation results coincided with the theoretical formula  and the design had reference value in engineering. 2010 Copyright SPIE - The International Society for Optical Engineering.  
Athermal design of hybrid refractive/harmonic diffractive optical system for far-infrared multi-band (EI CONFERENCE) 会议论文  OAI收割
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, November 19, 2008 - November 21, 2008, Chengdu, China
作者:  
Liu Y.;  Liu Y.;  Zhang H.;  Zhang H.;  Sun Q.
收藏  |  浏览/下载:29/0  |  提交时间:2013/03/25
In order to get enough information about the target  avoid big chromatic aberration as a result of wide spectrum and the complexity of optical system and adapt different special environment temperature  a hybrid refractive/harmonic diffractive optical system in far-infrared multi-band is described in the paper. This diffractive optical system has been designed an athermalized multi-band imaging system with harmonic diffractive element in 15-50m spectrum  based on larger 1dispersion capability and particular thermal dispersive power of harmonic diffractive element. Then  at the temperature range from 0C to 40C  this design can simultaneously meet with all requirements of the imaging system in five harmonic wave bands  including15.8-16.2m  18.5-20m  23-25m  30.5-33.5m and 46-50m. In each harmonic wave band  the magnification changes as a function of wavelength  which creates image registration error. To compensate this shortcoming  a zoom optical system is designed with three lenses by means of optical two- component method. The design results show that the hybrid refractive/harmonic diffractive optical system can realize athermalized and achromatic design  and the zoom optical system makes half image height at 3.53mm in every harmonic wave band and still realizes aberration compensation action. In the five harmonic wave bands  each optical transfer function approaches the diffraction limit at ambient temperature range of 0C to 40C. Finally  the system realizes the requirements of portability  mini-type and ease for fabrication. 2009 SPIE.  
Broadband and wide field of view foveated imaging system in space 期刊论文  OAI收割
optical engineering, 2008, 卷号: 47, 期号: 10, 页码: 103202
作者:  
Zhao, Xiaoxia;  Xie, Yongjun;  Zhao, Wei
收藏  |  浏览/下载:13/0  |  提交时间:2011/09/30