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浏览/检索结果: 共8条，第1-8条 帮助 限定条件 发表日期：2010     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 基于球面的600mm望远镜光学系统设计 期刊论文 光学技术, 2010, 卷号: 36, 期号: 7, 页码: 509-516 李宏壮; 韩昌元; 刘欣悦; 王建立 收藏  |  浏览/下载：5/0  |  提交时间：2012/09/25 Optical system of golay-3 synthetic aperture telescope of Fizeau style (EI CONFERENCE) 会议论文 2010 3rd International Conference on Advanced Computer Theory and Engineering, ICACTE 2010, August 20, 2010 - August 22, 2010, Chengdu, China Duan X.-Y.; Zhang Y.-Y.; Qiao Y.-F.; Sun Z.-Y. 收藏  |  浏览/下载：16/0  |  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.   Athermalization of coaxial reflective space telescope (EI CONFERENCE) 会议论文 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, April 26, 2010 - April 29, 2010, Dalian, China Lei Z.; Guang J. 收藏  |  浏览/下载：12/0  |  提交时间：2013/03/25 This paper focuses on thermal effects  which caused by environmental temperature changes  on coaxial reflective space telescope and its solution. Curvature radius and center thickness of optical elements  and the space distance between optical elements may be changed by thermal effects. And the optical performance of the telescope may be impacted. Based on the analysis of thermal effects on coaxial reflective space telescope  athermalized design techniques are emphatically presented  the advantages and the disadvantages of the three athermalizations used currently are compared in the paper. The feasibility and effectiveness are verified by an example of a cassegrain space telescope. 2010 Copyright SPIE - The International Society for Optical Engineering.   Reflective foveated optical imaging system based on liquid crystal spatial light modulator (EI CONFERENCE) 会议论文 Optical Design and Testing IV, October 18, 2010 - October 20, 2010, Beijing, China Peng Q.-Q.; Chang J.; Feng S.-L.; Wang R.-R. 收藏  |  浏览/下载：19/0  |  提交时间：2013/03/25 Based on reflective liquid crystal spatial light modulator (SLM)  a new foveated optical imaging system is proposed. High quality imaging can be realized at any region of interest (ROI) within the field-of-view (FOV) by utilizing the SLM to correct the aberration of different regions dynamically. A reflective cassegrain optical structure is proposed  which is designed  optimized and matched with the reflective SLM to construct a more practical foveated imaging system. This reflective imaging system has a large aperture so that enough light can reach the image plane. It also makes the total length of the system shorter and therefore more practical. We also simulate and analyze the system. This kind of foveated optical imaging system can be applied in wide FOV imaging aspects to reduce bandwidth and optics complexity  and to achieve weight reduction and miniaturization. 2010 Copyright SPIE - The International Society for Optical Engineering.   Study on Computer-aided Alignment Method of Cassegrain System 会议论文 Proceedings of the SPIE - The International Society for Optical Engineering, 2010 作者:  Wang Bin;  Jiang Shi Lei;  Qiu Tian 收藏  |  浏览/下载：9/0  |  提交时间：2016/11/24 Study on Computer-aided Alignment Method of Cassegrain System 会议论文 Proceedings of the SPIE - The International Society for Optical Engineering, 2010 作者:  Wang Bin;  Jiang Shi Lei;  Qiu Tian 收藏  |  浏览/下载：7/0  |  提交时间：2016/11/24 Detection of a Cyclic Period Change in the W UMa-Type System HT Virginis 期刊论文 PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 2010, 卷号: 62, 期号: 3, 页码: 521-524 作者:  Liao WP(廖文萍);  Qian SB(钱声帮) 收藏  |  浏览/下载：11/0  |  提交时间：2016/04/08 stars: binaries: close  stars: binaries: eclipsing  stars: individuals (HT Virginis)  stars: multiple   Study on the test of transient ultraviolet spectrum for remote extended area sources with spectrometer 会议论文 作者:  Li Hongguang;  Yang Hongru;  Wu Baoning;  Chang Weijun;  Bai Zhao 收藏  |  浏览/下载：5/0  |  提交时间：2019/12/10 Transient ultraviolet spectrum  Cassegrain imaging system  spectral distortion  grating spectrograph