Research on digital alignment technology based on rotating drum of slit-lamp

CHEN Hua; SHEN Jianxin; YAO Fengying

doi:10.5768/JAO201940.0105004

Journal of Applied Optics > 2019 > 40(1): 127-131. > DOI: 10.5768/JAO201940.0105004

CHEN Hua, SHEN Jianxin, YAO Fengying. Research on digital alignment technology based on rotating drum of slit-lamp[J]. Journal of Applied Optics, 2019, 40(1): 127-131. DOI: 10.5768/JAO201940.0105004

Citation:

PDF (620 KB)

Research on digital alignment technology based on rotating drum of slit-lamp

College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

More Information

Received Date: July 08, 2018
Revised Date: October 09, 2018

Graphical Abstract

Abstract

Abstract

In view of optical alignment of slit-lamp rotating drum, a new digital optical calibration method was presented. This method adopts the principle of transmission aligning system, adds the cross lines before and after the detecting optical path, judges the aligning quality by observing the imaging of two cross lines in the charge-coupled device (CCD) image and achieves the digital information through image processing at last. By extracting the midpoint coordinates of two cross lines, it can be judged whether the optical axis of the rotating drum optical system is consistent; by extracting the clarity of CCD image, it can be judged whether the rotating drum optical system is focusing. This method was used to align the rotating drum. The results show that the proposed method is a digital method to transform aligning information to digital information by using image processing technology, and its alignment error is less than 0.1 mm by digital image analysis.
- optical alignment,
- digital,
- slit lamp,
- rotating drum

FullText(HTML)

References (11)

References

[1]	黄幼萍.数码裂隙灯显微成像光学系统设计[D].福建: 福建师范大学, 2015: 9-12. HUANG Youping.Optical design of microscopic imaging system for digital slit-lamp[D].FuJian: Fujian Normal University, 2015: 9-12.
[2]	岳鹏远, 赵希婷, 赵振, 等.无焦压缩光路系统的计算机辅助装调方法[J].应用光学, 2016, 37(4):607-611. doi: 10.5768/JAO201637.0405003 YUE Pengyuan, ZHAO Xiting, ZHAO Zhen, et al.Computer-aided alignment method in afocal compressed optical path system[J].Journal of Applied Optics, 2016, 37(4):607-611. doi: 10.5768/JAO201637.0405003
[3]	徐祺瑞.大口径光学系统装校关键技术研究[D].四川: 中国科学技术研究院光电技术研究所, 2017: 3-10. XU Qirui.Research on key technology of large optical system alignment[D].Sichuan: The Institute of Optics and Electronics Chinese Academy of Sciences, 2017: 3-10.
[4]	张学敏, 宋兴, 候晓华, 等.可调焦离轴三反镜光学系统的装调[J].光学精密工程, 2017, 25(6):1458-1463. doi: 10.3788/OPE.20172506.1458 ZHANG Xuemin, SONG Xing, HOU Xiaohua, et al.Alignment of the optical system of the tri-mirror optical system[J].Optical Precision Engineering, 2017, 25(6):1458-1463. doi: 10.3788/OPE.20172506.1458
[5]	易亨瑜, 齐予, 陈门雪, 等.光学系统辅助装调技术研究[J].光学与光电技术, 2012, 10(3):55-60. http://d.old.wanfangdata.com.cn/Periodical/yygx200906003 YI Hengyu, QI Yu, CHEN Menxue, et al.Research on the technology of optical system aided alignment[J].Optical and Optoelectronic Technology, 2012, 10(3):55-60. http://d.old.wanfangdata.com.cn/Periodical/yygx200906003
[6]	段学霆.共轴光学系统计算机辅助光轴一致性装调研究[D].西安: 中国科学院西安光学精密机械研究所, 2006: 37-47. DUAN Xueting.The study on computer aided alignment of coaxial optical system[D].Xi'an: Xi'an Optical Precision Machinery Research Institute of Chinese Academy of Sciences, 2006: 37-47.
[7]	宋兴, 杨建峰, 张学敏, 等.RC光学系统的精密装调[J].光子学报, 2017, 46(1):0122002. http://www.cnki.com.cn/Article/CJFDTotal-GZXB2017S1002.htm SONG Xing, YANG Jianfeng, ZHANG Xuemin, et al.Precision assembly of RC optical system[J].Journal of Photonics, 2017, 46(1):0122002. http://www.cnki.com.cn/Article/CJFDTotal-GZXB2017S1002.htm
[8]	黄晓妹, 田绪红.无参考的模糊图像清晰度评价方法[J].小型微型计算机系统, 2015, 36(5):1117-1121. doi: 10.3969/j.issn.1000-1220.2015.05.045 HUANG Xiaomei, TIAN Chuhong.Fuzzy image-resolution evaluation without reference[J].Miniature Computer System, 2015(5):1117-1121. doi: 10.3969/j.issn.1000-1220.2015.05.045
[9]	范媛媛, 沈湘衡.基于对比度敏感度的无参考图像清晰度评价[J].光学精密工程, 2011, 19(11):2485-2493. http://d.old.wanfangdata.com.cn/Periodical/gxjmgc201110025 FAN Yuanyuan, SHEN Xiangheng.Evaluation of no-reference image resolution based on contrast sensitivity[J].Optical Precision Engineering, 2011, 19(11):2485-2493. http://d.old.wanfangdata.com.cn/Periodical/gxjmgc201110025
[10]	张天煜, 冯华君, 徐之海, 等.基于强边缘宽度直方图的图像清晰度指标[J].浙江大学学报:工学版, 2014, 48(2):312-319 http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zjdxxb-gx201402019 ZHANG Tianshuo, FENG Huajun, XU Zhihai, et al.Image resolution index based on histogram of strong edge width[J].Journal of Zhejiang University:Engineering Edition, 2014, 48(2):312-319. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zjdxxb-gx201402019
[11]	申勤.数字图像清晰度评价函数的研究与改进[J].微型机与应用, 2011, 30(1):32-34. http://d.old.wanfangdata.com.cn/Periodical/wxjyyy201101011 SHEN Qin.Research and improvement of digital image resolution evaluation function[J].Microcomputers and Applications, 2011, 30(1):32-34. http://d.old.wanfangdata.com.cn/Periodical/wxjyyy201101011

[1]	ZHENG Suzhen. Single-photon 3D reconstruction technology of rotating objects[J]. Journal of Applied Optics, 2024, 45(5): 879-884. DOI: 10.5768/JAO202445.0501001
[2]	ZHAO Juncheng, YIN Wanhong, LIU Jianping, YANG Pengli, DONG Zaitian. Research on measurement method of laser beam quality with orthogonal slit scanning[J]. Journal of Applied Optics, 2020, 41(4): 704-710. DOI: 10.5768/JAO202041.0407003
[3]	JIANG Junjia, SHEN Jianxin, ZHOU Zhe, HAN Peng. Research on rotary drum assembly and adjustment technology based on improved probabilistic Hough transform[J]. Journal of Applied Optics, 2020, 41(2): 394-399. DOI: 10.5768/JAO202041.0205003
[4]	XU Hui, SUN Yingqin, AN Guangrui, Zhang Yijun. Analysis on effect of platform rotation on SAR imaging[J]. Journal of Applied Optics, 2019, 40(6): 1039-1044. DOI: 10.5768/JAO201940.0601017
[5]	Zhang Wenbo, Feng Bin, Wu Yaoxia. Analysis and calculation of tracking target based on rotating mirror[J]. Journal of Applied Optics, 2017, 38(5): 706-712. DOI: 10.5768/JAO201738.0501005
[6]	Tan Yi, Li Changhui, Ren Yajie, He Junfeng. Influence of different rotating scanning times on photoacoustic tomography[J]. Journal of Applied Optics, 2016, 37(5): 700-705. DOI: 10.5768/JAO201637.0502005
[7]	HUI Gang-yang, YANG Hai-cheng, JIANG Feng, ZHANG Yan, WANG Zhang-li. Alignment technology of offsetting image rotation prism in periscopic sight[J]. Journal of Applied Optics, 2013, 34(4): 700-705.
[8]	LIU Fei, YU Yun-qi, GUO Xin-sheng, LI Hong-guang, HAN Rui. Electric circuit of optical image de-rotation[J]. Journal of Applied Optics, 2011, 32(4): 636-640.
[9]	JIANG Tao, CHEN Fang-bin, WANG Xiao-qi, CHENG Gang, XING Jun-zhi, WANG Hong-hong, LIU Xiao-qiang, HU Bo. Vector angle compensating algorithm for panoramic rotating image[J]. Journal of Applied Optics, 2009, 30(5): 730-733.
[10]	ZHANG Kai, FU Yue-gang, WANG Zhi-jian. Analysis and design of large-aperture image-rotation compensation system[J]. Journal of Applied Optics, 2009, 30(3): 403-406.

Cited By

Cited by

Periodical cited type(1)

江俊佳，沈建新，周喆，韩鹏. 基于改进的概率Hough变换的转鼓装校技术研究. 应用光学. 2020(02): 394-399 .

本站查看

Other cited types(1)

Get Citation

PDF

XML

Article views (783) PDF downloads (29) Cited by(2)

Turn off MathJax

Article Contents

Abstract

References

Research on digital alignment technology based on rotating drum of slit-lamp