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Advanced Optical Technologies

Editor-in-Chief: Pfeffer, Michael


CiteScore 2018: 1.42

SCImago Journal Rank (SJR) 2018: 0.499
Source Normalized Impact per Paper (SNIP) 2018: 1.346

In co-publication with THOSS Media GmbH

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2192-8584
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Volume 1, Issue 3

Issues

Hybrid hyperchromats for chromatic confocal sensor systems

Matthias Hillenbrand
  • Corresponding author
  • Fachgebiet Technische Optik, IMN MacroNano, Technische Universität Ilmenau, Ilmenau, 98693, Germany
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/ Beate Mitschunas
  • Fachgebiet Technische Optik, IMN MacroNano, Technische Universität Ilmenau, Ilmenau, 98693, Germany
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/ Christian Wenzel / Adrian Grewe
  • Fachgebiet Technische Optik, IMN MacroNano, Technische Universität Ilmenau, Ilmenau, 98693, Germany
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/ Xuan Ma
  • Fachgebiet Technische Optik, IMN MacroNano, Technische Universität Ilmenau, Ilmenau, 98693, Germany
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/ Patrick Feßer
  • Fachgebiet Technische Optik, IMN MacroNano, Technische Universität Ilmenau, Ilmenau, 98693, Germany
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/ Mohamed Bichra
  • Fachgebiet Technische Optik, IMN MacroNano, Technische Universität Ilmenau, Ilmenau, 98693, Germany
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  • De Gruyter OnlineGoogle Scholar
/ Stefan Sinzinger
  • Fachgebiet Technische Optik, IMN MacroNano, Technische Universität Ilmenau, Ilmenau, 98693, Germany
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  • De Gruyter OnlineGoogle Scholar

Abstract

The combination of diffractive and refractive elements in hybrid optical systems allows for precise control of the longitudinal chromatic aberration. We provide comprehensive design strategies for hybrid hyperchromatic lenses that maximise the longitudinal chromatic aberrations. These lenses are mainly used in chromatic confocal sensor systems for efficient non-contact profilometry as well as for measurements of distances and wall thicknesses of transparent materials. Our design approach enables the tailoring of the sensor properties to the specific measurement problem and assists designers in finding optimised solutions for industrial applications. We, for example, demonstrate a hybrid system that significantly exceeds the longitudinal chromatic aberration of purely diffractive elements.

Keywords: chromatic confocal sensing; diffractive optics; lens design; micro-optics; optical metrology

About the article

Matthias Hillenbrand

Matthias Hillenbrand holds an engineer’s degree in mechanical engineering from Technische Universität Ilmenau. Currently, he works as a research assistant at Fachgebiet Technische Optik and is pursuing a doctoral degree in the field of optical engineering. His main research areas are the design of optical systems without symmetry and the development of systems for chromatic information coding.

Beate Mitschunas

Beate Mitschunas received her engineering and doctoral degrees from Technische Universität Ilmenau in 1978 and 1985, respectively. Since 1984, she has been employed as a research assistant at TU Ilmenau. Her fields of interest are the collinear and analytical modelling of imaging optical systems, holographic optical elements, and the development of non-conventional optical systems.

Christian Wenzel

Christian Wenzel studied mechanical engineering with a focus on precision engineering and technical optics at Technische Universität Ilmenau. In 2011, he graduated with a Master of Science at TU Ilmenau. Currently, he works as a developer for optical systems at Hella KGaA in Lippstadt (Germany), a well-known supplier of the automotive industry.

Adrian Grewe

Adrian Grewe studied mechanical engineering specialising in precision engineering and optics at Technische Universität Ilmenau. In 2010, he graduated with a diploma in engineering. Since then, he has worked for TU Ilmenau as a PhD student in the field of ultra-precision micro-milling of optical components and hyperspectral imaging.

Xuan Ma

Xuan Ma received her Bachelor degree in 2003 from Beijing Institute of Technology. Then she studied mechanical engineering at Technische Universität Ilmenau in Germany and graduated in 2008 with an engineer’s degree. Since 2009, she has worked on her PhD at Fachgebiet Technische Optik, TU Ilmenau.

Patrick Feßer

Patrick Feßer completed his apprenticeship as a microelectronics technician in 2011. Since then, he has worked as a technical employee at Technische Universität Ilmenau. His fields of activity include lithography on planar and non-planar substrates as well as the fabrication and characterisation of diffractive optical elements.

Mohamed Bichra

Mohamed Bichra studied Micro and Medical Technology with a particular focus on laser systems at the University of Applied Sciences Gelsenkirchen. In 2009, he graduated with an engineering degree from the same university. Between 2008 and 2012, he has worked as a development engineer at Limo Lissotschenko Mikrooptik GmbH in Dortmund and at Heinz Group in Elgersburg. Since 2012, he is a PhD student and research assistant with Prof. Sinzinger at Technische Universität Ilmenau.

Stefan Sinzinger

Stefan Sinzinger received his Dipl.-Phys. and Dr. degrees from the Friedrich-Alexander Universität Erlangen-Nürnberg, Institute for Applied Optics (Prof. Dr. A.W. Lohmann) in 1989 and 1993, respectively. In 2002, he became Professor for Optical Engineering (‘Technische Optik’) at the Technische Universität Ilmenau. Among more than 160 publications in international journals and conferences, Stefan Sinzinger is co-author of the textbook ‘Microoptics’ and editor of the textbook ‘Optical Information Processing’ (author A.W. Lohmann). His current research focuses on the design, integration, fabrication, and application of (micro-) optical elements and hybrid optical (micro-) systems.


Corresponding author


Received: 2012-04-12

Accepted: 2012-05-30

Published in Print: 2012-07-01


Citation Information: Advanced Optical Technologies, Volume 1, Issue 3, Pages 187–194, ISSN (Online) 2192-8584, ISSN (Print) 2192-8576, DOI: https://doi.org/10.1515/aot-2012-0017.

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©2012 by Walter de Gruyter Berlin Boston.Get Permission

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