| 0.5×～2.5×长工作距离变焦距显微物镜设计 |
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| 引用本文： | 冯浩男,梅启升,梁秀玲. 0.5×～2.5×长工作距离变焦距显微物镜设计[J]. 光学仪器, 2018, 40(4): 40-46 |
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| 作者姓名： | 冯浩男 梅启升 梁秀玲 |
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| 作者单位： | 福建师范大学光电与信息工程学院医学光电科学与技术教育部重点实验室暨福建省光子技术重点实验室 |
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| 基金项目： | 福建省科技厅引导性项目（2017H0010）；福州市校（院所）科技合作项目（2016-G-46） |
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| 摘 要： | 根据变焦距理论和显微物镜的特点,利用Zemax设计了一款可连续变倍的显微物镜。该物镜由4组双胶合透镜组构成,结构简单,成像质量良好,变倍范围在0.5~×~2.5~×之间,最大数值孔径达到0.1,共轭距346mm,物距76mm,空间频率65lp/mm处,全视场内的调制传递函数均大于0.3,适用于可见光光谱,可以与1/2inch CCD相匹配。通过对所设计的变倍显微物镜进行公差分析,得到一套比较宽松的公差,适合批量生产。设计结果表明,该变倍显微物镜可以满足工业视频检测的要求。
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| 关 键 词： | 光学设计 变焦距显微物镜 机械补偿 公差分析 |
| 收稿时间： | 2017-11-29 |
0.5×~2.5× long working distance zoom microscope objective lens design |
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| FENG Haonan,MEI Qisheng and LIANG Xiuling. 0.5×~2.5× long working distance zoom microscope objective lens design[J]. Optical Instruments, 2018, 40(4): 40-46 |
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| Authors: | FENG Haonan MEI Qisheng LIANG Xiuling |
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| Affiliation: | Fujian Provincial Key Laboratory of Photonics Technology, Key Laboratory of Opto-Electronic Science and Technology for Medicine, Ministry of Education, College of Photonic and Electronic Engineering, Fujian Normal University, Fuzhou 35007, China,Fujian Provincial Key Laboratory of Photonics Technology, Key Laboratory of Opto-Electronic Science and Technology for Medicine, Ministry of Education, College of Photonic and Electronic Engineering, Fujian Normal University, Fuzhou 35007, China and Fujian Provincial Key Laboratory of Photonics Technology, Key Laboratory of Opto-Electronic Science and Technology for Medicine, Ministry of Education, College of Photonic and Electronic Engineering, Fujian Normal University, Fuzhou 35007, China |
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| Abstract: | According to the characteristics of the zoom theory and microscope objectives,we are designing a continuous zoom microscope objective by using Zemax.The objective consists of 4 doublet lens groups,with simple structure and good image quality.Zoom ranges from 0.5 times to 2.5 times,and its maximum numerical aperture is 0.1.The objective is applicable to the visible light spectrum,which matches the 1/2 inch CCD.Its conjugate distance is 346 mm.Object distance is 76 mm.The whole field of modulation transfer function is greater than 0.3 in the 65 lp/mm spatial frequency.Based on tolerance analysis of the continuous zoom microscope objectives,we get a relatively loose tolerance,which is suitable for mass production.Results show that the zoom microscope objectives can meet the requirements of industrial video detection. |
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| Keywords: | optical design zoom microscope objectives mechanical compensation tolerance analysis |
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