Measurement of focal length for a spheri
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Y.R. Wang; L.Z. Cai
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Article
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1998
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Elsevier Science
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English
β 186 KB
A method of testing the monochromatic focal length of a spherical lens by using a joint Fourier transform spectrum interference technique is proposed and experimentally demonstrated. The focal length is determined by the spacing of the interference fringes resulting from two identical input images a