Focal Length Measurement Of Lens Based On Linear Array CCD

摘要：

　　Focal length of lens is an important parameter to determine the relationship between objective and image.It must be measured accurately.The traditional method of using optical bench to measure the focal length of lens has big man-made errors.So we used linear array CCD camera instead of eyes as the receiver to measure the focal length of lens in this paper.Based on the theory of point spread function,it firstly determined the evaluation function of focal plane.With the threshold method,it determined the location coordinate of sharp signal.Then it proved the feasibility of this scheme through experiment.Finally we compared the experimental data obtained with this method with the experimental data obtained with traditional method,which showed that it was more accurate to measure the focal length of lens with this method.

关键词： focal length linear array CCD point spread function threshold method

作者: Fei Guo Mei Zhao Ying Liu Jun XJe Wei Han

作者单位: Aviation Information Department, Aviation University Of Air Force, 130022 Changchun, China

会议类型: 国际会议

会议名称: 2nd International Conference on Polymer Composities and Polymer Testing (2013第二届高分子复合材料与高分子测试国际会议暨先进工业技术与方案国际会议)(ISPCPT2013)

会议地点: 太原

会议语种:英文

页码: 697-701

在线出版日期: 2013-03-22（万方平台首次上网日期，不代表论文的发表时间）