Talbot interferometry in noncollimated illumination for curvature and focal length measurements

Talbot interferometry in noncollimated illumination for curvature and focal length measurements

We describe a simple method for measuring the radius of curvature by using Talbot interferometry in a noncollimated light beam. This scheme can also be used to determine the focal length of the collimating lens employed in the setup. Results of the measurements are presented. A discussion of achieva...

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Veröffentlicht in:Applied Optics 1992, Vol.31 (1), p.75-79
Hauptverfasser: Sriram, K V, Kothiyal, M P, Sirohi, R S
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Sprache:eng
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Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Optical workshop techniques
Optics
Physics
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container_title Applied Optics
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creator Sriram, K V
Kothiyal, M P
Sirohi, R S
description We describe a simple method for measuring the radius of curvature by using Talbot interferometry in a noncollimated light beam. This scheme can also be used to determine the focal length of the collimating lens employed in the setup. Results of the measurements are presented. A discussion of achievable accuracies and the proper choice of parameters is included.
doi_str_mv 10.1364/AO.31.000075
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source Alma/SFX Local Collection; Optica Publishing Group Journals
subjects Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Optical workshop techniques
Optics
Physics
title Talbot interferometry in noncollimated illumination for curvature and focal length measurements
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