Determination of long focal length of lenses with Talbot interferometer

Xiaorong Jin; Honglei Yu; Jian Bai; Xiyun Hou

doi:10.1117/12.965242

15 October 2012 Determination of long focal length of lenses with Talbot interferometer

Xiaorong Jin, Honglei Yu, Jian Bai, Xiyun Hou

Proceedings Volume 8417, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment; 84171V (2012) https://doi.org/10.1117/12.965242
Event: 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT 2012), 2012, Xiamen, China

Abstract

In this paper, a method for high-accuracy determination of long focal length based on Talbot interferometer is presented. Through changing the angle between two gratings, systematic errors are reduced effectively by calibration. The collimation of the light is determined by a standard concave mirror. The experimental results reveal that the relative error is 0.1%, and the repeatability is better than 0.1%. As the method is simple and somewhat insensitive to environmental effects, it is especially useful for measuring long focal-length lenses.

Citation Download Citation

Xiaorong Jin, Honglei Yu, Jian Bai, and Xiyun Hou "Determination of long focal length of lenses with Talbot interferometer", Proc. SPIE 8417, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 84171V (15 October 2012); https://doi.org/10.1117/12.965242

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