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• 会议论文 [8]
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浏览/检索结果: 共11条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 An Iterative High-Precision Algorithm for Multi-Beam Array Stitching Method Based on Scanning Hartmann 期刊论文  OAI收割 APPLIED SCIENCES-BASEL, 2024, 卷号: 14, 期号: 2 作者:  Yan, Xiangyu;  Li, Dahai;  Kewei, E.;  Feng, Fang;  Wang, Tao   |  收藏  |  浏览/下载：20/0  |  提交时间：2024/03/04 scanning Hartmann  large-aperture optical systems  aberration measurement  sub-aperture stitching  iterative algorithm   Computer-aided alignment method for AIMS solar telescope 会议论文  OAI收割 Shanghai, China, 2021-10-28 作者:  E., Kewei   |  收藏  |  浏览/下载：37/0  |  提交时间：2022/03/18 Alignment  Telescope  AIMS  Optical testing  Sub-aperture testing   Sub-aperture optical system testing by using of a modified simulateous fit method 会议论文  OAI收割 Shanghai, China, 2020-06-29 作者:  Kewei, E.;  Zhao, Jianke;  Wang, Tao;  Wang, Zhengfeng;  Liu, Kai   |  收藏  |  浏览/下载：35/0  |  提交时间：2021/03/04 wavefront testing  sub-aperture stitching  large aperture optical system  simultaneous fit   Orthonormal polynomials in segmented optical pupils 期刊论文  OAI收割 Optik, 2019, 卷号: 197 作者:  Zhang, Yongfeng;  Xian, Hao   |  收藏  |  浏览/下载：28/0  |  提交时间：2021/05/06 Orthonormal polynomials  Segmented pupil  The Gram-Schmidt process  Sub-aperture rigid correction  Residual error   A precise method for adjusting the optical system of laser sub-aperture 会议论文  OAI收割 Nanjing, PEOPLES R CHINA, 2017-10-24 作者:  Song Xing;  Zhang Xue-min;  Yang Jianfeng;  Xue Li;  Yang, JF (reprint author), Chinese Acad Sci, Xian Inst Opt & Precis Mech, Xian 710119, Shaanxi, Peoples R China.   |  收藏  |  浏览/下载：27/0  |  提交时间：2018/07/05 Sub-aperture Stitching Optical System  Auto-collimation  Interferometric Imaging  Precice Alignment   Development of testing convex hyperbolic mirror using Hindle method based on stitching technology 会议论文  OAI收割 Amsterdam, Netherlands, 2012-7-1 作者:  Zi-bo Jiang;  Xin-nan Li;  Bo Ji 收藏  |  浏览/下载：31/0  |  提交时间：2014/01/09 Hindle method  aspherical mirror  stitching  sub-aperture  convex secondary mirror   Design of the real-time autofocusing system for collimator with long focus length and large aperture (EI CONFERENCE) 会议论文  OAI收割 2011 International Academic Conference on Numbers, Intelligence, Manufacturing Technology and Machinery Automation, MAMT 2011, December 24, 2011 - December 25, 2011, Wuhan, China 作者:  Zhang X.;  Zhang X.;  Zhang X. 收藏  |  浏览/下载：42/0  |  提交时间：2013/03/25 Large aperture collimator which has been widely used for calibrating and testing various optical devices plays an essential role in correlative laboratories. As being the basic testing and calibration equipment  the large aperture collimator's accuracy should be much higher than the device under testing in order to ensure the accuracy of the measurement. However  the process of adjusting the collimator is extremely complicated due to the collimator's large aperture and long focal length. So it is difficult to ensure the measurement's quality and easy to cause the system being vulnerable to the surrounding environment. One of the most common problems is defocus. In order to solve the problem above  this issue presents a new type of autocollimator autofocusing system which uses pentaprism instead of using large-aperture plane mirror  semiconductor lasers as light source and CCD sensor as receiver. The system is smaller  lighter  and more convenient when using. The computer simulation shows that the autofocusing system's resolution could reach the accuracy of 40m. If we use the relevant algorithms to execute the sub-pixel scanning  the resolution could reach the accuracy of 10m. It shows that the system could satisfy the required testing precision of testing large aperture optical device.   MTF-based research on the minimum fill factor in optical sparse aperture system (EI CONFERENCE) 会议论文  OAI收割 2011 4th International Conference on Intelligent Computation Technology and Automation, ICICTA 2011, March 28, 2011 - March 29, 2011, Shenzhen, Guangdong, China 作者:  Liu Z. 收藏  |  浏览/下载：29/0  |  提交时间：2013/03/25 To avoid the loss of image information when it is transferred through optical sparse aperture system with excessively diluted apertures arrangement  we propose a method in the frequency domain termed characteristic triangle to calculate the minimum fill factor. This method is based on the characteristics of MTF and demonstrates that when the characteristic triangle is equilateral with each side 3th power of sub-MTF cutoff frequency  MTF has no zero value below cutoff frequency  thus we can obtain the minimum fill factor. Furthermore  we apply it to some typical sparse arrays  such as Golay3  Golay6  Ring6 and Tri-arm7  and get their fill factors of 33.33%  15.16%  30.11%  and 11.14% correspondingly  which are consistent with numerical results. 2011 IEEE.   Optical system of golay-3 synthetic aperture telescope of Fizeau style (EI CONFERENCE) 会议论文  OAI收割 2010 3rd International Conference on Advanced Computer Theory and Engineering, ICACTE 2010, August 20, 2010 - August 22, 2010, Chengdu, China 作者:  Sun Z.-Y. 收藏  |  浏览/下载：19/0  |  提交时间：2013/03/25 In order to get high resolution  the field of view is 4. Analyzed the imaging  a optical system of golay-3 synthetic aperture telescope has been designed which adopt Fizeau multi-telescope frame. The angular magnification of sub-aperture is -4  the fill factor is 113. The configuration of light beam combiner is Cassegrain style added a lens. The total focal length is 6000mm  the PSF have been improved remarkably  and the cut-off frequency of MTF is close to that of full aperture. 2010 IEEE.   Design of 2.5m Optical Fabrication Machine for Astronomical Mirrors 会议论文  OAI收割 Marseille, France, 2008-6-23 作者:  Da-xing Wang;  Yi Zheng;  Bin Liang;  Ying Li 收藏  |  浏览/下载：28/0  |  提交时间：2014/01/01 Optical fabrication machine  aspherical mirror  computer control  sub-aperture tool  active stressed lap