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浏览/检索结果: 共1条，第1-1条 帮助 限定条件 发表日期：2012     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：28/0  |  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.