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Modeling of optical aberrations due to thermal deformation using finite element analysis and ray-tracing

 
: Bonhoff, T.; Büsing, L.; Stollenwerk, J.; Loosen, P.

:
Postprint urn:nbn:de:0011-n-3624235 (3.1 MByte PDF)
MD5 Fingerprint: 5f7dce65b160acaa8ee05921c84cf192
Copyright Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Erstellt am: 24.11.2015


Mazuray, L. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Optical Systems Design 2015: Optical Design and Engineering VI. Proceedings : 7-10 September 2015, Jena, Germany
Bellingham, WA: SPIE, 2015 (Proceedings of SPIE 9626)
ISBN: 978-1-62841-815-6
Paper 96261V, 10 S.
Conference "Optical Design and Engineering" <6, 2015, Jena>
Conference "Optical Systems Design" <2015, Jena>
Englisch
Konferenzbeitrag, Elektronische Publikation
Fraunhofer ILT ()

Abstract
Thermo-optical simulation is an important extension of classical ray-tracing because many applications, especially in laser technology, have to deal with thermal effects. This paper discusses an approach for modeling thermally induced surface deformations of rotational symmetric optical systems: the discrete deformation data generated by Finite Element Analysis (FEA) are approximated using a global even polynomial which is then transferred to the ray-tracing. The implemented algorithm is validated by comparing approximated data to an analytic deformation function. Finally, the benefit of modeling the temperature dependent refractive index and the thermal deformation is demonstrated using the example of a plastic lens.

: http://publica.fraunhofer.de/dokumente/N-362423.html