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Proceedings Paper

Modelling of influence of spherical aberration coefficients on depth of focus of optical systems
Author(s): Petr Pokorný; Filip Šmejkal; Pavel Kulmon; Antonín Mikš; Jiří Novák; Pavel Novák
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Paper Abstract

This contribution describes how to model the influence of spherical aberration coefficients on the depth of focus of optical systems. Analytical formulas for the calculation of beam's caustics are presented. The conditions for aberration coefficients are derived for two cases when we require that either the Strehl definition or the gyration radius should be the identical in two symmetrically placed planes with respect to the paraxial image plane. One can calculate the maximum depth of focus and the minimum diameter of the circle of confusion of the optical system corresponding to chosen conditions. This contribution helps to understand how spherical aberration may affect the depth of focus and how to design such an optical system with the required depth of focus. One can perform computer modelling and design of the optical system and its spherical aberration in order to achieve the required depth of focus.

Paper Details

Date Published: 26 June 2017
PDF: 8 pages
Proc. SPIE 10330, Modeling Aspects in Optical Metrology VI, 103301B (26 June 2017); doi: 10.1117/12.2270082
Show Author Affiliations
Petr Pokorný, Czech Technical Univ. in Prague (Czech Republic)
Filip Šmejkal, Czech Technical Univ. in Prague (Czech Republic)
Pavel Kulmon, Czech Technical Univ. in Prague (Czech Republic)
Antonín Mikš, Czech Technical Univ. in Prague (Czech Republic)
Jiří Novák, Czech Technical Univ. in Prague (Czech Republic)
Pavel Novák, Czech Technical Univ. in Prague (Czech Republic)


Published in SPIE Proceedings Vol. 10330:
Modeling Aspects in Optical Metrology VI
Bernd Bodermann; Karsten Frenner; Richard M. Silver, Editor(s)

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