Long focal length large-aperture switch-zoom system design
文献类型：会议论文
| 作者 | WangYan-Bin ; DuanJing ; JinHu-Min ; JiangKai ; ZhangHeng-Jin |
| 出版日期 | 2011 |
| 会议名称 | international symposium on photoelectronic detection and imaging 2011: advances in imaging detectors and applications |
| 会议日期 | may 24, 2011 - may 26, 2014 |
| 会议地点 | beijing, china |
| 关键词 | long focal length large-aperture switch-zoom NA Optical design |
| 页码 | 81941o |
| 通讯作者 | wang yanbin |
| 英文摘要 | compared with continuous zoom system, switch-zoom system has many advantages, such as simple structure, perfect imaging quality and easy fixing. a set of long focal length large-aperture visible switch-zoom system is designed in this paper. the system is composed of two parts: the front r-c object lens and the back switch-zoom system. when the back system is reversed, 1500∼3000mm switch-zoom can be realized. in order to match the front r-c object lens' exit pupil with the back switch-zoom lens' entrance pupil, the front r-c object lens is controlled to be telecentric and the back switch-zoom system is telecentric at both image and object. the back switch-zoom system's object na at short focal position is controlled to be equal to the front r-c object lens' image na. thus, the two parts can match with each other properly and the whole long focal length large-aperture visible switch-zoom system is designed. when the spatial frequency is 50lp/mm, the mtf of the r-c system and the back switch-zoom system are reaching to the diffraction limit to ensure the mtf of the whole system at both long focal position and short focal position. the rms at each focal position is less than 10um. from the first surface to image plane, the overall length is 1100mm. the designed result shows that this zoom system has the advantages of simple structure, high image quality and easy fixing. |
| 收录类别 | EI ; CPCI |
| 产权排序 | 1 |
| 会议主办者 | chinese society of astronautics (cas) |
| 会议录 | proceedings of spie - the international society for optical engineering
 |
| 会议录出版者 | spie |
| 会议录出版地 | p.o. box 10, bellingham, wa 98227-0041, united states |
| 语种 | 英语 |
| ISSN号 | 0277-834x |
| 源URL | [http://ir.opt.ac.cn/handle/181661/20009]  |
| 专题 | 西安光学精密机械研究所_光电测量技术实验室 |
| 推荐引用方式 GB/T 7714 | WangYan-Bin,DuanJing,JinHu-Min,et al. Long focal length large-aperture switch-zoom system design[C]. 见:international symposium on photoelectronic detection and imaging 2011: advances in imaging detectors and applications. beijing, china. may 24, 2011 - may 26, 2014. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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