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 curva- ture 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 na- ture; 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.
出处
《华侨大学学报（自然科学版）》
CAS
北大核心
2015年第6期636-639,共4页
Journal of Huaqiao University(Natural Science)
基金
国家自然科学基金资助项目(51005077)
国家卫生和计划生育委员会科研基金资助项目(WKJ-FJ-27)
国家质检总局科研基金资助项目(2011QK216)
教育部高等学校博士学科点科研基金资助项目(20133514110008)
福建省杰出青年基金滚动资助项目(2014J07007)
福建省杰出青年基金资助项目(2011J06020)
福建省质量技术监督局项目(FJQI2009039
FJQI201014)
关键词
透镜
曲率半径
二维频域光学相干层析
频谱校正方法
lens
curvature radius
two-dimensional spectral-domain optical coherence tomography
spectrum correction method
