J. Eur. Opt. Society-Rapid Publ.
Volume 19, Number 1, 2023
|Number of page(s)||9|
|Published online||27 February 2023|
Transient optical simulation by coupling elastic multibody systems, finite elements, and ray tracing
Institute of Engineering and Computational Mechanics, University of Stuttgart, Pfaffenwaldring 9, 70569 Stuttgart, Germany
* Corresponding author: firstname.lastname@example.org
Accepted: 7 February 2023
Transient dynamical–thermoelastic–optical system simulation is an important expansion of classical ray tracing through rigid, resting lenses because the operating performance of high-precision optical systems can be influenced by dynamical excitations or thermal gradients. In this paper an approach for an integrated optical system simulation using the coupling of elastic multibody system simulations, thermoelastic finite element analysis and gradient-index ray tracing is presented. Transient mechanical rigid body motions and elastic deformations, thermally induced refraction index changes, and thermal elastic deformations can be considered simultaneously in the ray tracing using the presented method. The calculation of the dynamical and thermal disturbances, the data transfer and coupling, and the gradient index ray tracing method are introduced. Finally, the approach is applied on a transient triplet lens optical system and some investigation results are shown.
Key words: GRIN ray tracing / dn/dT / Thermoelastic-optical system / Dynamical-optical system / Elastic multibody system / Finite element methods / Inhomogeneous media / Transient analysis
© The Author(s), published by EDP Sciences, 2023
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