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浏览/检索结果: 共4条，第1-4条 帮助 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 The influence of CCD undersampling on the encircled energy of SVOM-VT 会议论文 Beijing, China, 2019-07-07 作者:  Xue, Xun;  Zhang, Chunmin;  Zhao, Jianke;  Zhou, Yan;  Liu, Shangkuo 收藏  |  浏览/下载：15/0  |  提交时间：2020/03/04 Encircled energy  Sampling theory  Undersampling  CCD   Optical system of large relative aperture and wide field using aspheric corrector for detecting (EI CONFERENCE) 会议论文 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, November 19, 2008 - November 21, 2008, Chengdu, China Ming M.; Wang J.; Zhang J. 收藏  |  浏览/下载：15/0  |  提交时间：2013/03/25 The magnitude requirement of space target detecting determines that the image of detecting telescope should have several performances: small spots  the wider field of view  small 80% encircled energy diameter and good MTF(Modulation transfer function). So the aperture and field of view of optical system have some demands accordingly. The larger aperture  the more extensive range which the telescope searches. Now most of ground telescopes whose apertures are from 500mm to 1000mm is on-axis optical system  the more energy that telescope collects and higher magnitude the telescope detects  so wide field of view becomes the most importance problem. To obtain large relative aperture and wide field of view  the paper introduces a catadioptric telescope with small aperture aspheric refractive corrector  whose conic surface will be used to remove the aberrations due to large relative aperture and wide field of view. As to the optical system  there is only one aspheric refractive corrector  and it is relatively easy for manufacturing because of its concave figure and normal material. The paper gives the example  and optimizes this optical system with ZEMAX program. And then the paper provides a specific analysis program for testing the aspheric refractive corrector. The aperture of this optical system is 750mm  and its relative aperture is 0.82  and the field of view is 3.6 diameter(diagonal). Its structure is simple and the image quality is also very good. 2009 SPIE.   Encircled energy measurement for focusing lens based on scanning Hartmann test 期刊论文 optik, 2007, 卷号: 118, 期号: 8, 页码: 357, 360 Liu Dan; 黄惠杰; Ren Bingqiang; 曾爱军; Huang Lihua; 王向朝 收藏  |  浏览/下载：955/184  |  提交时间：2009/09/24 encircled energy measurement  focusing lens  scanning Hartmann test   扫描型哈特曼检测装置研究 期刊论文 强激光与粒子束, 2005, 卷号: 17, 期号: 9, 页码: 1377, 1381 刘丹; 闫岩; 任冰强; 赵永凯; 黄立华; 黄惠杰; 王向朝 收藏  |  浏览/下载：1224/194  |  提交时间：2009/09/24 光学检测  Optical testing  哈特曼检验法  Hartmann test  扫描式哈特曼光阑  Scanning  非球面准直物镜  Hartmann screen  球差  Aspheric collimating lens  波像差  Longitudinal aberration  能量集中度  Optical path difference  Encircled energy