Dr. Susanne Zwick Profile

Dr. Susanne Zwick

at Fraunhofer-IOF

SPIE Involvement:

Author

Publications (11)

SPIE Journal Paper | 1 February 2013

Wide-band phase-shifting fringe projector on the basis of a tailored free-form mirror

Susanne Zwick, Stefan Heist, Yannick Franzl, Ralf Steinkopf, Peter Kühmstedt, Gunther Notni

OE, Vol. 52, Issue 2, 023001, (February 2013) https://doi.org/10.1117/12.10.1117/1.OE.52.2.023001

KEYWORDS: Projection systems, Mirrors, Ultraviolet radiation, Cameras, Phase shifts, Light sources, Fringe analysis, Imaging systems, Infrared imaging, Translucency

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Proceedings Article | 18 December 2012 Paper

Tolerancing of free form elements considering manufacturing characteristics

Susanne Zwick, Roberto Knoth, Ralf Steinkopf, Gunther Notni

Proceedings Volume 8550, 855006 (2012) https://doi.org/10.1117/12.980285

KEYWORDS: Tolerancing, Manufacturing, Monochromatic aberrations, Optics manufacturing, Error analysis, Monte Carlo methods, Optical components, Zemax, Diamond turning, MATLAB

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Recent developments in design algorithm allow the calculation of free form surfaces that generate a picture in the target plane with the help of one optical surface. In contrast to conventional imaging, light modulation is done by a ray-optical redistribution of the incident light which is comparable to incoherent beam shaping. Such picture-generating surfaces normally exhibit very complex surface sags, that are manufactured using diamond turning machining. The knowledge of manufacturing tolerances is important to generate the desired intensity distribution with the required accuracy and at the same time reduce manufacturing effort. However, compared to the tolerancing of conventional optical elements (e.g. spheres), the tolerancing of picture-generating free form optical elements is a demanding task. The complexity of their surface shapes and the target intensity distribution are challenging considering the finding of tolerance parameters and performance criteria. Tolerance parameters strongly depend on the manufacturing process. Therefore they can be obtained by a detailed analysis of their manufacturing process. In this contribution we focused on picture-generating free form optical elements manufactured using diamond turning with slow tool servo support. Astigmatism and spherical aberration are typical manufacturing errors caused by this tool exhibiting low spatial frequency. Errors with middle to high spatial frequency have not been investigated so far. Conventional software tools for tolerancing, as e.g. implemented in Zemax, provide only such tolerance parameters as radius, thickness or tilt, corresponding to conventional manufacturing methods of classical optical elements (e.g. spheres). Therefore we implemented a software tool developed in Matlab and using Zemax for raytracing in order to perform sensitivity analysis and Monte Carlo analysis. Conventional performance criteria like spot radius or wavefront error to evaluate the tolerance analysis cannot be applied for picture-generating free from elements. Consequently, other performance criteria were investigated. The correlation between the desired and the generated intensity distribution was chosen to be an appropriate performance criterion for the tolerancing analysis.

Proceedings Article | 18 December 2012 Paper

A simulation model for the development of an aspheric lens adjustment system

Christian Bräuer-Burchardt, Susanne Zwick, Matthias Beier, Andreas Gebhardt, Peter Kühmstedt

Proceedings Volume 8550, 855008 (2012) https://doi.org/10.1117/12.981172

KEYWORDS: Distance measurement, Aspheric lenses, Sensors, Error analysis, Data modeling, Statistical analysis, Computer simulations, Optical spheres, Optics manufacturing, Lens design

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Proceedings Article | 25 September 2012 Paper

3D measurement system on the basis of a tailored free-form mirror

Susanne Zwick, Stefan Heist, Yannick Franzl, Ralf Steinkopf, Peter Kühmstedt, Gunther Notni

Proceedings Volume 8494, 84940F (2012) https://doi.org/10.1117/12.928577

KEYWORDS: Mirrors, Projection systems, Ultraviolet radiation, Cameras, Light sources, Phase shifts, Imaging systems, Fringe analysis, Laser sintering, Translucency

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Proceedings Article | 5 May 2012 Paper

Wave-optical formation of the intensity distribution and diffraction limit of picture-generating freeform surfaces

Susanne Zwick, Robert Feßler, Jevgenij Jegorov, Gunther Notni

Proceedings Volume 8429, 842913 (2012) https://doi.org/10.1117/12.916767

KEYWORDS: Diffraction, Imaging systems, Mirrors, Algorithm development, Wave propagation, Superposition, Light sources, Image resolution, Optical design, Modulation

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Proceedings Article | 30 September 2011 Paper

Phase-shifting fringe projection system using freeform optics

Susanne Zwick, Peter Kühmstedt, Gunther Notni

Proceedings Volume 8169, 81690W (2011) https://doi.org/10.1117/12.896819

KEYWORDS: Mirrors, Light sources, Projection systems, Phase shifts, Modulation, Distortion, Freeform optics, Beam shaping, Imaging systems, Visible radiation

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Proceedings Article | 21 September 2011 Paper

Surface metrology system based on bidirectional microdisplays

Constanze Grossmann, Franziska Perske, Susanne Zwick, Judith Baumgarten, Bernd Richter, Stefan Riehemann, Uwe Vogel, Gunther Notni, Andreas Tünnermann

Proceedings Volume 8167, 81670Q (2011) https://doi.org/10.1117/12.896790

KEYWORDS: Sensors, Organic light emitting diodes, Photodiodes, Confocal microscopy, Optical design, Prototyping, Position sensors, Lens design, Metrology, Light sources

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Proceedings Article | 24 August 2009 Paper

SLM-based phase-contrast filtering for single and multiple image acquisition

Michael Warber, Susanne Zwick, Malte Hasler, Tobias Haist, Wolfgang Osten

Proceedings Volume 7442, 74420E (2009) https://doi.org/10.1117/12.825945

KEYWORDS: Phase contrast, Spatial light modulators, Image filtering, Phase shifts, Image processing, Microscopes, Image enhancement, Optical filters, Computer generated holography, Image contrast enhancement

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Proceedings Article | 25 January 2008 Paper

Holographic optical tweezers with real-time hologram calculation using a phase-only modulating LCOS-based SLM at 1064 nm

Andreas Hermerschmidt, Sven Krüger, Tobias Haist, Susanne Zwick, Michael Warber, Wolfgang Osten

Proceedings Volume 6905, 690508 (2008) https://doi.org/10.1117/12.764649

KEYWORDS: Holograms, Holography, Microscopes, Spatial light modulators, Diffraction, Objectives, Particles, Optical tweezers, Phase modulation, Visualization

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Proceedings Article | 18 June 2007 Paper

Realisation of a holographic microlaser scalpel using a digital micromirror device

Susanne Zwick, Michael Warber, Tobias Haist, Wolfgang Osten

Proceedings Volume 6616, 66160N (2007) https://doi.org/10.1117/12.727489

KEYWORDS: Holograms, Digital micromirror devices, Holography, Spatial light modulators, Diffraction, Optical tweezers, Fourier transforms, Ultraviolet radiation, Visualization, Telescopes

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Proceedings Article | 18 August 2005 Paper

Fast hologram computation and aberration control for holographic tweezers

M. Reicherter, T. Haist, S. Zwick, A. Burla, L. Seifert, W. Osten

Proceedings Volume 5930, 59301Y (2005) https://doi.org/10.1117/12.617040

KEYWORDS: Holograms, Holography, LCDs, Visualization, Particles, Spatial light modulators, Optical tweezers, Semiconductor lasers, Phase contrast, Modulators

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Showing 5 of 11 publications

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