| Design of a large-range dispersive objective for line-sweep spectral confocal displacement sensors | |
Yang, Weiguang1,2; Qi, Meijie1; Yan, Jiayue1,2; Cheng, Mohan1,2; Zhang, Zhoufeng1
| |
| 2024 | |
| 会议名称 | 6th Conference on Frontiers in Optical Imaging and Technology: Novel Technologies in Optical Systems |
| 会议录名称 | Sixth Conference on Frontiers in Optical Imaging and Technology: Novel Technologies in Optical Systems |
| 卷号 | 13153 |
| 会议日期 | 2023-10-22 |
| 会议地点 | Nanjing, China |
| 出版者 | SPIE |
| 产权排序 | 1 |
| 摘要 | Spectral Confocal Displacement Sensor is a new type of displacement sensor that can meet the requirements of high precision, high speed and non-destructive testing, and can be applied in aerospace, medical and industrial testing fields. The traditional point-scan spectral confocal displacement sensor only collects depth information of one point at a time, which is slow and has a large amount of back-end data. In order to improve the scanning speed of the point-scan spectral confocal displacement sensor and reduce the workload of data processing, it is proposed to extend the point-scan type to line-scan type, which can obtain the depth information of thousands of points at one time, improve the scanning speed and reduce the workload of data processing by processing all the points on the scanning line at one time. Aiming at the dispersive objective lens design in the line-scan spectral confocal displacement sensor, a dispersive lens with a large linear dispersion range is designed based on the principle of linear axial chromatic aberration design. The lens consists of four single lenses and two double-glued lenses and a beam-splitting prism, in order to solve the problem of energy uniformity into the spectrometer and the problem of uniformity of illumination on the image surface, the double telecentric optical path design is adopted, and the size of the detector element selected is 5.5 um, and the Nyquist cutoff frequency is 91 Lp/mm. The design results show that: the dispersive range of the lens reaches 3 mm, and the length of the scanning line reaches 10 mm. At the Nyquist cutoff frequency, the MTF value of the whole field of view is greater than 0.6, which indicates that the system has good imaging quality. © COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only. |
| 关键词 | spectral confocal precision measurement dispersive objective double telecentric lens optical design |
| 作者部门 | 光谱成像技术研究室 |
| DOI | 10.1117/12.3013278 |
| 收录类别 | EI |
| ISBN号 | 9781510679665 |
| 语种 | 英语 |
| ISSN号 | 0277786X;1996756X |
| EI入藏号 | 20242016087065 |
| 引用统计 | |
| 文献类型 | 会议论文 |
| 条目标识符 | http://ir.opt.ac.cn/handle/181661/97475 |
| 专题 | 光谱成像技术研究室 |
| 作者单位 | 1.Laboratory of Spectral Imaging Technology, Xi'an Institute of Optical Precision and Mechanical Research, Chinese Academy of Sciences, Shaanxi, Xi'an; 710119, China; 2.University of Chinese Academy of Sciences, Beijing; 100049, China |
| 推荐引用方式 GB/T 7714 | Yang, Weiguang,Qi, Meijie,Yan, Jiayue,et al. Design of a large-range dispersive objective for line-sweep spectral confocal displacement sensors[C]:SPIE,2024. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Design of a large-ra（587KB） | 会议论文 | 限制开放 | CC BY-NC-SA | 请求全文 | ||
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论