Paper
26 June 2017 Modelling of influence of spherical aberration coefficients on depth of focus of optical systems
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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.
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Petr Pokorný, Filip Šmejkal, Pavel Kulmon, Antonín Mikš, Jiří Novák, and Pavel Novák "Modelling of influence of spherical aberration coefficients on depth of focus of optical systems", Proc. SPIE 10330, Modeling Aspects in Optical Metrology VI, 103301B (26 June 2017); https://doi.org/10.1117/12.2270082
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KEYWORDS
Monochromatic aberrations

Optical design

Modeling

Image quality

Geometrical optics

Imaging systems

Computer simulations

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