Instrumentation, Measurement, and Metrology

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

[+] Author Affiliations
Daniel Malacara-Doblado

Centro de Investigaciones en Optica, A.C., Apdo Postal 1-948, León, Gto. 37000 México

Didia Patricia Salas-Peimbert

Instituto Tecnológico de Chihuahua, Apdo Postal 2-119, Chihuahua, 31000 México

Gerardo Trujillo-Schiaffino

Instituto Tecnológico de Chihuahua, Apdo Postal 2-119, Chihuahua, 31000 México

Opt. Eng. 49(5), 053601 (May 05, 2010). doi:10.1117/1.3421548
History: Received June 11, 2009; Revised January 16, 2010; Accepted March 08, 2010; Published May 05, 2010; Online May 05, 2010
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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.

Figures in this Article
© 2010 Society of Photo-Optical Instrumentation Engineers

Citation

Daniel Malacara-Doblado ; Didia Patricia Salas-Peimbert and Gerardo Trujillo-Schiaffino
"Measuring the effective focal length and the wavefront aberrations of a lens system", Opt. Eng. 49(5), 053601 (May 05, 2010). ; http://dx.doi.org/10.1117/1.3421548


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