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浏览/检索结果: 共3条，第1-3条 帮助 限定条件 发表日期：2012    内容类型：会议论文    专题：长春光学精密机械与物理研究所    第一署名单位    第一作者单位    通讯作者单位     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 Design and fabrication of imaging optical systems with freeform surfaces (EI CONFERENCE) 会议论文 Current Developments in Lens Design and Optical Engineering XIII, August 13, 2012 - August 15, 2012, San Diego, CA, United states Zhang X.; Zheng L.; He X.; Wang L.; Zhang F.; Yu S.; Shi G.; Zhang B.; Liu Q.; Wang T. 收藏  |  浏览/下载：29/0  |  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.   Aircraft flight simulation with landing gear based on multi-domain modeling technology (EI CONFERENCE) 会议论文 2012 2nd International Conference on Computer Application and System Modeling, ICCASM 2012, July 27, 2012 - July 29, 2012, Shenyang, China Li M.; Hao X.; Han X.; Jia H. 收藏  |  浏览/下载：11/0  |  提交时间：2013/03/25 This paper create a full aircraft flight simulation model for accurately analyzing the performance and influence of landing gear system. The use of multi-domain modeling technology enables detailed modeling of the flight dynamic and landing gear dynamic. The simulation results show that the aircraft landing gear system mathematical model established appropriately reflects the change of force and moment in the process of taking off and landing  and it is actual in the physical process. The parameter design space is easily searched by considering a number of different landing scenarios to optimize the design. the authors.   Analysis of Image Rotation for Aerial Remote Sensor with Off-Axis three-Reflective Optical System 会议论文 2012 Yu C. F.; Ding Y. L.; Hui S. W.; Zhang J. G.; Leng X. 收藏  |  浏览/下载：4/0  |  提交时间：2013/03/28