采用二维频域光学相干层析的透镜曲率半径测量
|
摘要
利用自研发的二维频域光学相干层析系统,测量透镜的曲率半径及焦距.为了提高透镜曲率的测量精度,采用频谱校正技术校正快速傅里叶变换产生能量泄漏而造成的误差.试验结果表明:研发的二维频域光学相干层析系统具有非接触式无损伤的特点,可以一次采集成像获取透镜的曲率半径和焦距,不需任何机械扫描运动就能获取透镜的曲率轮廓,且测量结果精确.
Measurement of curvature radius and focus length of lens using a home-made two-dimensional spectral-domain optical coherence tomography(2DOCT)system was proposed.In order to enhance the measurement precision of curvature radius of lens,spectrum correction method was employed in the system to reduce the energy effect due to fast Fourier transform computation.The experimental results show that the developed 2DOCT has non-contact and non-invasive in nature;the system could measure the radius curvature and focus length of a lens,with high precision,using a single-shot imaging without any mechanical scanning.
Measurement of curvature radius and focus length of lens using a home-made two-dimensional spectral-domain optical coherence tomography(2DOCT)system was proposed.In order to enhance the measurement precision of curvature radius of lens,spectrum correction method was employed in the system to reduce the energy effect due to fast Fourier transform computation.The experimental results show that the developed 2DOCT has non-contact and non-invasive in nature;the system could measure the radius curvature and focus length of a lens,with high precision,using a single-shot imaging without any mechanical scanning.
引文
[1]王中林,郑丹,孙冬丽.基于白光干涉的光学球面半径测量研究[J].应用光学,2007,28(6):707-711.
[2]苏芳珍,杨德甫,曹海玲.用自准直法测薄凸透镜焦距实验中“真”“假”像的判断[J].延安大学学报(自然科学版),2008,27(4):40-42.
[3]徐鹏,赵维谦,王方彪,等.光栅尺测长式激光差动共焦曲率半径测量系统[J].应用光学,2014,35(6):1023-1028.
[4]娄颖.光学透镜参数现代测量方法研究[J].红外与激光工程,2008,37(增刊1):41-47.
[5]ZHONG Jianfeng,ZHONG Shuncong,ZHANG Qiukun,et al.Two-dimensional optical coherence tomography for real-time structural dynamical characterization[J].Optics and Lasers in Engineering,2015,66(3):74-79.
[6]HUANG D,SWANSON E A,LIN Chanpin,et al.Optical coherence tomography[J].Science,1991,254(22):1178-1181.
[7]FILHO C,ROSENFELD P,YEHOSHUA Z,et al.Spectral-domain optical coherence tomography imaging of age-related macular degeneration[J].US Ophthalmic Review,2011,4(2):113-118.
[8]FENG Yunwei,VARIKOOTY J,SIMPSON T.Optical coherence tomography of overnight swelling of human cornea and corneal epithelium[J].Investigative Ophthalmology and Visual Science,2000,41(4):S675.
[9]龚雪,刘丽.光学相干层析技术用于早期龋检测的研究进展[J].国际口腔医学杂志,2012,39(5):668-671.
[10]石博雅,孟卓,刘铁根,等.OCT系统对人体牙齿组织的非失真成像深度的研究[J].光学学报,2014,34(2):0217001(1-7).
[11]南楠,步鹏,王向朝,等.三维全深度复频域光学相干层析成像系统及其对人体皮肤的在体成像[J].中国激光,2012,39(7):120-125.
[12]任杰,王颖,顾瑛,等.激光散斑成像和光学相干层析成像用于皮肤微血管无创检测的基础研究[J].中国激光医学杂志,2012,21(5):309.
[13]陈丹阳,张秋坤,钟剑峰,等.基于频谱校正技术的光学相干振动和热变形层析系统研究[J].南京大学学报(自然科学版),2014,50(2):1-6.
[14]ZHONG Shuncong,SHEN Hao,SHEN Yaochun.Real-time monitoring of structural vibration using spectral-domain optical coherence tomography[J].Optics and Lasers in Engineering,2011,49(1):127-131.
[15]ZENG Nan,HE Yonghong,MA Hui,et al.Pearl detection with optical coherence tomography[J].Chinese Journal of Lasers,2007,34(8):1140-1145.
[16]ZHONG Shuncong,SHEN Yaochun,HO L,et al.Non-destructive quantification of pharmaceutical tablet coatings using terahertz pulsed imaging and optical coherence tomography[J].Optics and Lasers in Engineering,2011,49(3):361-365.
[17]ZHONG Shuncong,YAN Yongfu,SHEN Yaochun.Non-destructive testing of GFRP materials by Fourier-domain infrared optical coherence tomography[C]∥International Conference on Automatic Control and Artificial Intelligence.Xiamen:[s.n.],2012:1407-1410.
[18]丁康,朱小勇.离散频谱综合相位差校正法[J].振动工程学报,2002,15(1):114-118.
[19]丁康,钟舜聪.通用的离散频谱相位差校正方法[J].电子学报,2003,31(1):1-4.
[2]苏芳珍,杨德甫,曹海玲.用自准直法测薄凸透镜焦距实验中“真”“假”像的判断[J].延安大学学报(自然科学版),2008,27(4):40-42.
[3]徐鹏,赵维谦,王方彪,等.光栅尺测长式激光差动共焦曲率半径测量系统[J].应用光学,2014,35(6):1023-1028.
[4]娄颖.光学透镜参数现代测量方法研究[J].红外与激光工程,2008,37(增刊1):41-47.
[5]ZHONG Jianfeng,ZHONG Shuncong,ZHANG Qiukun,et al.Two-dimensional optical coherence tomography for real-time structural dynamical characterization[J].Optics and Lasers in Engineering,2015,66(3):74-79.
[6]HUANG D,SWANSON E A,LIN Chanpin,et al.Optical coherence tomography[J].Science,1991,254(22):1178-1181.
[7]FILHO C,ROSENFELD P,YEHOSHUA Z,et al.Spectral-domain optical coherence tomography imaging of age-related macular degeneration[J].US Ophthalmic Review,2011,4(2):113-118.
[8]FENG Yunwei,VARIKOOTY J,SIMPSON T.Optical coherence tomography of overnight swelling of human cornea and corneal epithelium[J].Investigative Ophthalmology and Visual Science,2000,41(4):S675.
[9]龚雪,刘丽.光学相干层析技术用于早期龋检测的研究进展[J].国际口腔医学杂志,2012,39(5):668-671.
[10]石博雅,孟卓,刘铁根,等.OCT系统对人体牙齿组织的非失真成像深度的研究[J].光学学报,2014,34(2):0217001(1-7).
[11]南楠,步鹏,王向朝,等.三维全深度复频域光学相干层析成像系统及其对人体皮肤的在体成像[J].中国激光,2012,39(7):120-125.
[12]任杰,王颖,顾瑛,等.激光散斑成像和光学相干层析成像用于皮肤微血管无创检测的基础研究[J].中国激光医学杂志,2012,21(5):309.
[13]陈丹阳,张秋坤,钟剑峰,等.基于频谱校正技术的光学相干振动和热变形层析系统研究[J].南京大学学报(自然科学版),2014,50(2):1-6.
[14]ZHONG Shuncong,SHEN Hao,SHEN Yaochun.Real-time monitoring of structural vibration using spectral-domain optical coherence tomography[J].Optics and Lasers in Engineering,2011,49(1):127-131.
[15]ZENG Nan,HE Yonghong,MA Hui,et al.Pearl detection with optical coherence tomography[J].Chinese Journal of Lasers,2007,34(8):1140-1145.
[16]ZHONG Shuncong,SHEN Yaochun,HO L,et al.Non-destructive quantification of pharmaceutical tablet coatings using terahertz pulsed imaging and optical coherence tomography[J].Optics and Lasers in Engineering,2011,49(3):361-365.
[17]ZHONG Shuncong,YAN Yongfu,SHEN Yaochun.Non-destructive testing of GFRP materials by Fourier-domain infrared optical coherence tomography[C]∥International Conference on Automatic Control and Artificial Intelligence.Xiamen:[s.n.],2012:1407-1410.
[18]丁康,朱小勇.离散频谱综合相位差校正法[J].振动工程学报,2002,15(1):114-118.
[19]丁康,钟舜聪.通用的离散频谱相位差校正方法[J].电子学报,2003,31(1):1-4.