Differential ray tracing analysis of the Schwarzschild objective

Xesús Prieto-Blanco; Dolores Mouriz; Héctor González Núñez; Elena Lopez Lago; Raúl de la Fuente

doi:10.1117/12.892018

26 July 2011 Differential ray tracing analysis of the Schwarzschild objective

Xesús Prieto-Blanco, Dolores Mouriz, Héctor González Núñez, Elena Lopez Lago, Raúl de la Fuente

Proceedings Volume 8001, International Conference on Applications of Optics and Photonics; 80014H (2011) https://doi.org/10.1117/12.892018
Event: International Conference on Applications of Optics and Photonics, 2011, Braga, Portugal

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.

Citation Download Citation

Xesús Prieto-Blanco, Dolores Mouriz, Héctor González Núñez, Elena Lopez Lago, and Raúl de la Fuente "Differential ray tracing analysis of the Schwarzschild objective", Proc. SPIE 8001, International Conference on Applications of Optics and Photonics, 80014H (26 July 2011); https://doi.org/10.1117/12.892018

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