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Optical Engineering

Measuring the effective focal length and the wavefront aberrations of a lens system
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Paper Abstract

A new, simple method to measure the effective focal length of a thick lens or lens system in the laboratory when a lens nodal bench is not readily available is described. Use is made of the Talbot autoimaging effect by placing the lens in a collimated light beam, with a Ronchi ruling in front of the lens and another in the refracted beam.

Paper Details

Date Published: 1 May 2010
PDF: 5 pages
Opt. Eng. 49(5) 053601 doi: 10.1117/1.3421548
Published in: Optical Engineering Volume 49, Issue 5
Show Author Affiliations
Daniel Malacara-Doblado, Ctr. de Investigaciones en Óptica, A.C. (Mexico)
Didia Patricia Salas-Peimbert, Instituto Technologico de Chihuahua (Mexico)
Gerardo Trujillo-Schiaffino, Instituto Technologico de Chihuahua (Mexico)


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