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	A new off-axis Gregorian mechanical structure and its alignment method 会议论文 OAI收割 Shanghai, China, 2021-10-28 作者: Fu, Xing; Lei, Yu; Cao, Mingqiang; Yin, Yamei \| 收藏 \| 浏览/下载：33/0 \| 提交时间：2022/03/18 Off-axis Optical System Alignment Zernike Coefficients Sensitivity Matrix
	Application of machine learning in the alignment of off-Axis optical system 会议论文 OAI收割 Beijing, China, 2021-06-20 作者: Yu, Lei; Ma, Caiwen; Fu, Xing; Yin, Yamei; Cao, Mingqiang \| 收藏 \| 浏览/下载：22/0 \| 提交时间：2022/01/30 Off-axis Optical System Alignment Machine Learning Neural Network
	A method for optical ground station reduce alignment error in satellite-ground quantum experiments 会议论文 OAI收割 Shanghai, PEOPLES R CHINAShanghai, PEOPLES R CHINA, NOV 24-26, 2017NOV 24-26, 2017 作者: He, Dong; Wang, Qiang; Zhou, Jian-Wei; Song, Zhi-Jun; Zhong, Dai-Jun \| 收藏 \| 浏览/下载：48/0 \| 提交时间：2019/08/23 optical ground station quantum communication Micius satellite ATP optical axis alignment hexapod secondary mirror
	1m红外太阳望远镜镜面位置误差致光轴偏移分析期刊论文 OAI收割红外技术(Infrared Technology), 2016, 卷号: 38, 期号: 10, 页码: 870-876 作者: 董雪岩; 许方宇; 陈骥; 罗永芳收藏 \| 浏览/下载：58/0 \| 提交时间：2017/01/12 红外望远镜(infrared telescope) 光学装调(optical system assembly and alignment) 光轴偏移(optic axis deviation) 像质(image quality) 弯沉(deflection) 灵敏度矩阵(sensitivity matrix)
	Relative Pose Estimation for Alignment of Long Cylindrical Components Based on Microscopic Vision 期刊论文 OAI收割 IEEE-ASME TRANSACTIONS ON MECHATRONICS, 2016, 卷号: 21, 期号: 3, 页码: 1388-1398 作者: Liu, Song; Xu, De; Liu, Fangfang; Zhang, Dapeng; Zhang, Zhengtao \| 收藏 \| 浏览/下载：22/0 \| 提交时间：2016/10/20 3-d Alignment Assembly Feature Extraction Image Jacobian Matrix Long Cylindrical Components Multimicroscopic Vision Optical Axis Calibration Relative Pose Estimation Vision Sensing
	Design and fabrication of imaging optical systems with freeform surfaces (EI CONFERENCE) 会议论文 OAI收割 Current Developments in Lens Design and Optical Engineering XIII, August 13, 2012 - August 15, 2012, San Diego, CA, United states 作者: Zhang F.; Wang L.; Wang L.; Wang L.; He X. 收藏 \| 浏览/下载：35/0 \| 提交时间：2013/03/25 Freeform surfaces provide more degrees of freedom for design of optical systems and enhance the ability of compensation and correction aberrations. Freeform surfaces are of advantage to balance the unsymmetrical aberrations especially for the wide-field off-axis optical systems. This paper focus on an off-axis reflective optical system which focal length is 550mm F# is 6.5 and field of view (FOV) is 76. The system adopts some freeform surfaces. We discuss the problems we noticed in processes of design manufacture measurement and alignment and the solutions. At last the periodical research result and the expected performance are given. 2012 SPIE.
	Design and fabrication of CGH for aspheric surface testing and its experimental comparison with null lens (EI CONFERENCE) 会议论文 OAI收割 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, April 26, 2010 - April 29, 2010, Dalian, China 作者: Zhao J.; Zhang X.; Zhang X.; Zhang X.; Li F. 收藏 \| 浏览/下载：37/0 \| 提交时间：2013/03/25 Computer-generated hologram (CGH) is an effective way to compensate wavefront in null test of aspheric surfaces and freeform surfaces. Our strategies of CGH design and fabrication for optical testing are presented and an experiment demonstrating the compensation results of CGH and null lens is also reported. In order to design complex CGH software was developed with which we can design a CGH including three sections: main section for compensating wavefront in null test alignment section for adjusting the relative position between CGH and interferometer and fiducial section for projecting fiducial marks around the optics under test. The design result is represented in GDS II format file which could drive a laser-direct-writer- machine to fabricate a photomask. Then a 1:1 replication process is applied to duplicate the patterns from photomask to a parallel optical substrate whose surface is error better than /60 rms. Finally an off-axis aspheric surface was tested with CGH and null lens respectively. The test result with CGH (0.019rms) is almost the same as the result with null lens (0.020 rms). This experiment also demonstrated that fiducial marks projected by CGH can be used to guide the alignment of the optics and measurement of its off-axis distance. 2010 Copyright SPIE - The International Society for Optical Engineering.
	Alignment of off-axis asphere and compensator with four poles (EI CONFERENCE) 会议论文 OAI收割 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, November 19, 2008 - November 21, 2008, Chengdu, China 作者: Li J.; Chen Y.; Li J.; Li J.; Wang P. 收藏 \| 浏览/下载：60/0 \| 提交时间：2013/03/25 Aspheres are utilized widely thanks to the development of optical design manufacture and testing. Compensators are usually necessary when aspheres are under test. The alignment of aspheres and their compensators is a risk because it's tough to check whether the compensators work in right way. A new method of alignment with four poles is put forward in this paper. Optical interval error can be tight while it is quite important due to direct influence on central curvature conic constant and high order coefficients of aspherical surface. A modified on-axis Foucault apparatus is set up since it makes the optical axis visible and helps to control the error of off-axis amount. Some small holes are drilled in the metallic cell of the compensator so that the ends of poles can be stably relied on in order to increase operational repeatability. The method has been carried out practically and it matches the measurement result given by a set of theodolites. 2009 SPIE.
	Method for computer-aided alignment of complex optical system (EI CONFERENCE) 会议论文 OAI收割 2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, November 2, 2005 - November 5, 2005, Zian, China 作者: Yu J. 收藏 \| 浏览/下载：30/0 \| 提交时间：2013/03/25 For making complex optical system meet the design requirement such as the space camera used in remote sensing and UVX lithophotography especially for off-axis all-reflecting optical system alignment technology is so necessary. In this paper a method is presented. Based on the ideas of linearity instead of non-linearity and difference quotient instead of differential quotient a mathematical model for computer-aided alignment is proposed. This model included the characteristics of the optical system wavefront difference of its exit pupil and its misalignment of the misaligned optical system. Then comparing self-compiled software with alignment package of CODE V as a result this self-compiled software is much more valid than alignment package of CODE V. For a large aperture long focal length and off-axis three-mirror optical system computer-aided alignment is successful. Finally the wavefront error of the middle field is 0.094 waves RMS and the wavefront error of +0.7 field is 0.106 waves RMS and the wavefront error of -0.7 field is 0.125 waves RMS at =632.8nm are obtained.