Research Article
Novel and simple reversed lateral shear interferometer with single-cube beam splitter and spatial Fourier transform for symmetric lens measurement
@INPROCEEDINGS{10.4108/eai.24-10-2018.2280615, author={Jianfei Sun and Cheok Peng Lee and Chee Khian Ang and Weijuan Qu Qu}, title={Novel and simple reversed lateral shear interferometer with single-cube beam splitter and spatial Fourier transform for symmetric lens measurement}, proceedings={The 1st International Conference on Computer Science and Engineering Technology Universitas Muria Kudus}, publisher={EAI}, proceedings_a={ICCSET}, year={2018}, month={11}, keywords={lateral shearing interferometer quantitative collimated beam spatial phase-shift phase curvature numerical reconstruction wavefront first-order derivatives symmetric axis fringes self-reference temporal phase shifting common path digital shearogram}, doi={10.4108/eai.24-10-2018.2280615} }- Jianfei Sun
Cheok Peng Lee
Chee Khian Ang
Weijuan Qu Qu
Year: 2018
Novel and simple reversed lateral shear interferometer with single-cube beam splitter and spatial Fourier transform for symmetric lens measurement
ICCSET
EAI
DOI: 10.4108/eai.24-10-2018.2280615
Abstract
This paper presents a simple reversed lateral shearing interferometer system for symmetric lens measurement. Reversed lateral shearing are recorded by tilting a single-cube beam splitter, which introduced the spatial carrier frequency. Fourier method is applied to evaluate the phase of symmetric object, which is separated on the frequency domain after Fourier transform. This system can generate shearing graph by using a single image. The effects of shearing distance, the choice of algorithm and comparison result are discussed in detail. The theory and the application are presented.
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