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Proceedings Paper

Characterization of cylindrical lenses with the help of grazing incidence interferometry for micro- and macro-optics
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Paper Abstract

The cylinder geometry allows for grazing incidence tests of optical surfaces let it be micro- or macro cylinder lenses. By using diffractive beam splitter and beam shaping elements a grazing incidence interferometer can be built where the zero diffraction order is used as reference beam and one of the first orders as probe beam for the cylinder surface. Circular as well as noncircular meridian curves can be dealt with by shaping the DOE structure accordingly. The structure of the DOE are parallel curves to the meridian providing a constant spatial frequency which alleviates the lithographic process. The fringes indicate surface deviations from fringe to fringe by p/2 where p is the pitch of the DOE. A description of a micro- and a macro-interferometer together with measuring results will be given.

Paper Details

Date Published: 19 November 2003
PDF: 2 pages
Proc. SPIE 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life, (19 November 2003); doi: 10.1117/12.524582
Show Author Affiliations
Johannes Schwider, Friedrich-Alexander Univ. Erlangen-Nürnberg (Germany)
Norbert Lindlein, Friedrich-Alexander Univ. Erlangen-Nürnberg (Germany)
Klaus Mantel, Friedrich-Alexander Univ. Erlangen-Nürnberg (Germany)
Roland Schreiner, Friedrich-Alexander Univ. Erlangen-Nürnberg (Germany)


Published in SPIE Proceedings Vol. 4829:
19th Congress of the International Commission for Optics: Optics for the Quality of Life
Giancarlo C. Righini; Anna Consortini, Editor(s)

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