Interferometric focal length measurement of power-distributed lenses (Articolo in rivista)

Type
Label
  • Interferometric focal length measurement of power-distributed lenses (Articolo in rivista) (literal)
Anno
  • 1999-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/S0143-8166(99)00050-0 (literal)
Alternative label
  • S. De Nicola, and P. Ferraro (1999)
    Interferometric focal length measurement of power-distributed lenses
    in Optics and lasers in engineering
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • S. De Nicola, and P. Ferraro (literal)
Pagina inizio
  • 79 (literal)
Pagina fine
  • 87 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://dx.doi.org/10.1016/S0143-8166(99)00050-0 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 32 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Consiglio Nazionale delle Ricerche, Istituto di Cibernetica ‘‘E. Caianiello’’, Comprensorio Olivetti, Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy Istituto Nazionale di Ottica Applicata, Sezione di Napoli, Comprensorio Olivetti, Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy (literal)
Titolo
  • Interferometric focal length measurement of power-distributed lenses (literal)
Abstract
  • An interferometric method for measuring the focal length of power-distributed lenses is described. The test lens is illuminated by a regular pitch interferometric pattern produced by a reflective diffraction grating interferometer. In order to measure the focal length, a CCD camera digitizes the image of the pattern magnified by the lens, and fast Fourier transformed to reconstruct the phase modulo 2? along each row. The change in spatial frequency is determined by unwrapping the phase along each row of the digitized imaged pattern. The technique is used for measuring the focal length distribution inside the progression corridor of both positive and negative progressive lenses. (literal)
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