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Proceedings Paper

Differential ray tracing analysis of the Schwarzschild objective
Author(s): Xesús Prieto-Blanco; Dolores Mouriz; Héctor González Núñez; Elena Lopez Lago; Raúl de la Fuente
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Paper Abstract

Differential Ray Tracing (DRT) is applied to optimize the design of a Schwarzschild objective with large aperture and for arbitrary object position. This optical system lacks of cylindrical symmetry about the non-paraxial base ray, causing astigmatism of a pencil of rays around this ray. The analysis determines the mirror radii ratio that makes the pencil anastigmatic, leading to an excellent image performance. In particular, the classical aplanatic Schwarzschild design is obtained in the limiting case where the base ray becomes paraxial. One example of a design, similar to a typical commercial objective for microscopy, is presented and the image quality is analyzed with an optical design program.

Paper Details

Date Published: 26 July 2011
PDF: 8 pages
Proc. SPIE 8001, International Conference on Applications of Optics and Photonics, 80014H (26 July 2011); doi: 10.1117/12.892018
Show Author Affiliations
Xesús Prieto-Blanco, Univ. de Santiago de Compostela (Spain)
Dolores Mouriz, Univ. de Santiago de Compostela (Spain)
Héctor González Núñez, Univ. de Santiago de Compostela (Spain)
Elena Lopez Lago, Univ. de Santiago de Compostela (Spain)
Raúl de la Fuente, Univ. de Santiago de Compostela (Spain)


Published in SPIE Proceedings Vol. 8001:
International Conference on Applications of Optics and Photonics
Manuel Filipe Costa, Editor(s)

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