Wavefront Measurement for Long Focal Large Aperture Lens Based on Talbot Effect of Ronchi Grating

摘要：

We propose a wavefront measurement method based on Talbot effect. It is well known that the wavefront of large aperture long focal lens is difficult to be measured. Here a new method for wavefront measurement of large aperture long focal lens is presented, which is accomplished by fitting the slope of sub-wavefront in the whole aperture while the sub-wavefront slope is got by calculating the shifted moire fringe numbers formed by Talbot effect of Ronchi grating in different position of the aperture. The formula of calculating the angle of subwavefront slope from the shifted moire fringe numbers is derived. Error analysis demonstrates that this method can be applied to the wavefront testing with high accuracy.

作者: C L Hou J Bai

作者单位: State Key laboratory of Optical Instrument, Micro System Center for Research and Development, Zhejiang University, Hangzhou, 310027, China

会议类型: 国际会议

会议名称: 第四届仪器科学与技术国际会议( 4th International Symposium on Instrumentation and Science and Tcchnology)

会议地点: 哈尔滨

会议语种:英文

页码: 1037-1041

在线出版日期: 2006-08-08（万方平台首次上网日期，不代表论文的发表时间）