Prof. Rainer Börret Profile

Prof. Rainer Börret

at Hochschule Aalen - Technik und Wirtschaft

SPIE Involvement:

Author

Publications (31)

Proceedings Article | 30 July 2024 Paper

Evaluation of a 6-DOF inkjet printer for the production of microstructures on curved surfaces using UV curable resin

Christoph Reck, Adam Wilczek, Rainer Börret

Proceedings Volume 13221, 132210C (2024) https://doi.org/10.1117/12.3031830

KEYWORDS: Printing, Inkjet technology, Ultraviolet radiation, Lenses, Deformation, Spherical lenses, Robotic systems, Optics manufacturing, Optical components, Additive manufacturing

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Proceedings Article | 30 July 2024 Paper

Round-robin test of subsurface damage characterization in ZERODUR using non-destructive optical coherence tomography

S. Frank, L. Schwörer, V. Alvan, P. Hohmann, I. Burger, S. Jedamzik, D. Thelemann, M. Wagner, J. Bliedtner, R. Börret

Proceedings Volume 13221, 1322102 (2024) https://doi.org/10.1117/12.3031491

KEYWORDS: Lens grinding, Optical coherence tomography, Zerodur, 3D metrology, Nondestructive evaluation, Manufacturing, Glass ceramics, Optics manufacturing

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The glass ceramic ZERODUR® with its extremely low thermal expansion finds widespread application in precision optics and astronomical instruments. It has been used for several very large telescope mirrors, as its unique properties make it indispensable in environments demanding stringent dimensional stability. As for all brittle materials, mechanical grinding processes involved in manufacturing introduce subsurface damage (SSD), which compromises the optical and mechanical performance of workpieces. Beyond its implications for quality, SSD is often a significant cost driver, necessitating expensive finishing processes. Characterizing SSD and determining its depth at various manufacturing stages from pre-grinding to final polishing are critical for ensuring the quality and reliability of optical components. Conventional measurement techniques predominantly involve destructive methods such as taper polishing or cleaving the surface, posing limitations in assessing SSD without compromising the integrity of the workpiece. Moreover, these methods are often time-consuming and labor-intensive. In a collaborative study, we conducted a round-robin test to establish and validate the efficacy of nondestructive optical coherence tomography (OCT) as a new technique for characterizing SSD depths in ground ZERODUR®. The aim is to provide a first comprehensive assessment of the capability of OCT in nondestructively quantifying SSD in glass ceramics. The methodology involves comparing measurements obtained from two distinct high-resolution OCT systems applied to identical ZERODUR® samples machined with selected process parameters. Furthermore, the study investigates the influence of different grain sizes on the SSD characteristics by comparing measurements across samples processed with varying grain sizes. By conducting the round-robin test, we seek to demonstrate the applicability of OCT as a non-destructive alternative for SSD characterization in ground ZERODUR®. Successful validation of OCT extended to a variety of relevant optic materials such as ZERODUR® would enhance overall quality control processes, offering a rapid and non-invasive means of assessing SSD depths and ensuring the integrity of critical optical components.

Proceedings Article | 8 March 2023 Presentation + Paper

Accuracy evaluation of a new 3D photogrammetric position measurement system for 6D printing

Luis Garcia, Uwe Bielke, Rainer Boerret

Proceedings Volume 12428, 124280D (2023) https://doi.org/10.1117/12.2649172

KEYWORDS: Head, Tunable filters, Light sources, Optical filters

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Proceedings Article | 8 July 2020 Paper

Machine learning model for robot polishing cell

M. Schneckenburger, L. Garcia-Barth, R. Börret

Proceedings Volume 11478, 114780J (2020) https://doi.org/10.1117/12.2564633

KEYWORDS: Polishing, Sensors, Machine learning, Surface finishing, Glasses, Neurons, Neural networks, Data modeling

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Proceedings Article | 8 July 2020 Paper

On the metrology and analysis of MSF error

Olga Kukso, Rolf Rascher, Mario Pohl, Rainer Boerret

Proceedings Volume 11478, 1147809 (2020) https://doi.org/10.1117/12.2566251

KEYWORDS: Polishing, Surface finishing, Spatial frequencies, Error analysis, Optics manufacturing, Analytical research, Metrology, Aspheric lenses, 3D metrology

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Proceedings Article | 8 July 2020 Paper

Mid spatial frequency error prevention strategies for the grinding process

Mario Pohl, Rainer Boerret, Olga Kukso, Rolf Rascher

Proceedings Volume 11478, 114780E (2020) https://doi.org/10.1117/12.2565261

KEYWORDS: Polishing, Spatial frequencies, Manufacturing, Surface finishing, Optics manufacturing, Precision optics, Scanning probe microscopy, Lenses, Lens grinding equipment, Analytical research

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Proceedings Article | 8 July 2020 Paper

High precision glass polishing with ketchup

Max Schneckenburger, Melanie Schiffner, Rainer Börret

Proceedings Volume 11478, 114780F (2020) https://doi.org/10.1117/12.2564867

KEYWORDS: Polishing, Surface finishing, Glasses, Head, Cerium, Liquids, Optical spheres, Natural surfaces, Sensors, Interferometers

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Proceedings Article | 28 June 2019 Paper

Machine learning robot polishing cell

Max Schneckenburger, Luis Garcia, Rainer Boerret

Proceedings Volume 11171, 1117102 (2019) https://doi.org/10.1117/12.2525529

KEYWORDS: Polishing, Sensors, Head, Machine learning, Surface finishing, Process control, Glasses, Foam, Performance modeling, Optical components

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Proceedings Article | 28 June 2019 Paper

MSF-error prevention strategies for the grinding process

Mario Pohl, Uwe Bielke, Rainer Boerret, Rolf Rascher, Olga Kukso

Proceedings Volume 11171, 1117106 (2019) https://doi.org/10.1117/12.2526581

KEYWORDS: Spatial frequencies, Polishing, Manufacturing, Surface finishing, Optics manufacturing, Lens grinding, Precision optics, Applied sciences, Lead, Kinematics

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Proceedings Article | 4 March 2019 Paper

Time-based offline track planning of robot guided laser applications for complex 3D freeform surfaces

M. Braun, M. Hofele, J. Schanz, S. Ruck, M. Pohl, R. Börret, H. Riegel

Proceedings Volume 10909, 109090V (2019) https://doi.org/10.1117/12.2508340

KEYWORDS: Polishing, Surface finishing, Clouds, Laser processing, Laser applications, Spatial light modulators, Manufacturing, Surface roughness, Distance measurement, Additive manufacturing

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Proceedings Article | 14 September 2018 Presentation + Paper

On the metrology of MSF errors after grinding

Olga Kukso, Rolf Rascher, Rainer Börret, Mario Pohl

Proceedings Volume 10742, 107420X (2018) https://doi.org/10.1117/12.2321007

KEYWORDS: Lens grinding, Spatial frequencies, Optics manufacturing, Manufacturing, Aspheric lenses, Metrology, Error analysis

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Proceedings Article | 14 September 2018 Presentation + Paper

Simulation of MSF-errors using Fourier transformation

Mario Pohl, Uwe Bielke, Rainer Boerret, Rolf Rascher, Olga Kukso

Proceedings Volume 10742, 107420H (2018) https://doi.org/10.1117/12.2320214

KEYWORDS: Manufacturing, Polishing, Surface finishing, Optics manufacturing, Spatial frequencies, Superposition, Lens grinding, Precision optics, Visualization

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Proceedings Article | 7 September 2018 Paper

Extensive microstructural quality control inside a machine tool using multiwavelength digital holography

T. Seyler, M. Fratz, T. Beckmann, A. Bertz, D. Carl, V. Grün, R. Börret, F. Ströer, J. Seewig

Proceedings Volume 10834, 108342B (2018) https://doi.org/10.1117/12.2319750

KEYWORDS: Sensors, Deconvolution, Digital holography, Confocal microscopy, Interferometers, Holograms, Surface roughness

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Proceedings Article | 7 August 2018 Paper

On the metrology of the MSF errors

Olga Kukso, Rolf Rascher, Rainer Börret, Mario Pohl

Proceedings Volume 10829, 108290F (2018) https://doi.org/10.1117/12.2318675

KEYWORDS: Spatial frequencies, Metrology, Manufacturing, Error analysis, Optics manufacturing, Lens grinding

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Proceedings Article | 7 August 2018 Paper

Simulation of MSF errors using Fourier transform

Mario Pohl, Rainer Boerret, Rolf Rascher, Olga Kukso

Proceedings Volume 10829, 1082903 (2018) https://doi.org/10.1117/12.2317484

KEYWORDS: Manufacturing, Polishing, Surface finishing, Interferometry, Optics manufacturing, Superposition, Fourier transforms, Spatial frequencies, Measurement devices, Precision optics

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Proceedings Article | 26 February 2018 Paper

Additive manufacturing of reflective and transmissive optics: potential and new solutions for optical systems

A. Heinrich, R. Börret, M. Merkel, H. Riegel

Proceedings Volume 10523, 1052302 (2018) https://doi.org/10.1117/12.2293130

KEYWORDS: Optics manufacturing, Polishing, Additive manufacturing, Optical components, Surface finishing, Reflectivity, 3D printing, Coating, Liquids, Spatial light modulators

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Proceedings Article | 15 June 2017 Paper

FEM simulation of the material removal in pad polishing

R. Almeida, R. Börret, W. Rimkus, D. Harrison, A. DeSilva

Proceedings Volume 10326, 1032607 (2017) https://doi.org/10.1117/12.2271434

KEYWORDS: Computer simulations, Polishing, Finite element methods, Data modeling, Abrasives, Glasses, Optics manufacturing, Optical components, Surface finishing, Materials processing, Polymethylmethacrylate

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Proceedings Article | 30 June 2016 Paper

Fluid jet polishing of steel moulds

Victor Grün, Rainer Börret, Marco Speich, Dominik Wiedemann

Proceedings Volume 10009, 100090J (2016) https://doi.org/10.1117/12.2235998

KEYWORDS: Polishing, Surface finishing, Glasses, Polymers, Materials processing, Computer aided design, Nickel, Aluminum, Indium nitride, Manufacturing

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Proceedings Article | 25 September 2014 Paper

Mold production for polymer optics

Rainer Boerret, Jonas Raab, Marco Speich

Proceedings Volume 9192, 91921L (2014) https://doi.org/10.1117/12.2060670

KEYWORDS: Polishing, Surface finishing, Polymers, Optics manufacturing, Diamond, Neodymium, Software development, Nickel, Head, Robotic systems

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Proceedings Article | 22 August 2009 Paper

Simulation and analysis of the polishing process for aspheres

Andreas Kelm, Manuel Hänle, Rainer Boerret, Stefan Sinzinger

Proceedings Volume 7426, 74260F (2009) https://doi.org/10.1117/12.825067

KEYWORDS: Polishing, Aspheric lenses, Surface finishing, Spherical lenses, Shape analysis, Computer simulations, Process control, Polishing equipment, Optics manufacturing, Optical testing

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Proceedings Article | 25 September 2008 Paper

Modeling of the polishing process for aspheric optics

Andreas Kelm, Rainer Boerret, Stefan Sinzinger

Proceedings Volume 7102, 71020H (2008) https://doi.org/10.1117/12.796388

KEYWORDS: Polishing, Surface finishing, Aspheric lenses, Aspheric optics, Manufacturing, Optics manufacturing, Glasses, Lenses, Computer simulations, Atrial fibrillation

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Proceedings Article | 11 September 2008 Paper

Minimized process chain for polymer optics

Rainer Boerret, Juergen Klingenmaier, Uwe Berger, Achim Frick

Proceedings Volume 7061, 706118 (2008) https://doi.org/10.1117/12.793277

KEYWORDS: Polishing, Polymers, Surface finishing, Optics manufacturing, Nickel, Diamond turning, Spherical lenses, Photovoltaics, Precision optics, Precision diamond machining

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Proceedings Article | 14 September 2007 Paper

High-speed form preserving polishing of precision aspheres

Rainer Boerret, Andreas Kelm, Helge Thiess

Proceedings Volume 6671, 667113 (2007) https://doi.org/10.1117/12.733746

KEYWORDS: Polishing, Aspheric lenses, Magnetorheological finishing, Error analysis, Surface finishing, Kinematics, Spatial frequencies, Optical filters, Optical fabrication, Optical spheres

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Proceedings Article | 14 September 2007 Paper

3-dimensional scanning of grinded optical surfaces based on optical coherence tomography

T. Hellmuth, R. Börret, K. Khrennikov

Proceedings Volume 6671, 66710X (2007) https://doi.org/10.1117/12.732019

KEYWORDS: Surface finishing, Optical coherence tomography, Polishing, Sensors, Aspheric lenses, Glasses, Signal detection, Wavefronts, Mirrors, Manufacturing

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Proceedings Article | 20 October 2005 Paper

ASPHERO5 - rapid fabrication of precise aspheres

Rainer Boerret, Volkmar Giggel, Hexin Wang

Proceedings Volume 5965, 59650I (2005) https://doi.org/10.1117/12.623327

KEYWORDS: Aspheric lenses, Polishing, Surface finishing, Optical spheres, Aspheric optics, Metrology, Interferometers, Interferometry, Applied sciences, Optical design

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Proceedings Article | 15 October 2005 Paper

Variable phaseplates for focus invariant optical systems

T. Hellmuth, A. Bich, R. Börret, A. Holschbach, A. Kelm

Proceedings Volume 5962, 596215 (2005) https://doi.org/10.1117/12.622699

KEYWORDS: Image filtering, Surface finishing, Polishing, Cameras, Imaging systems, Wavefronts, Polymethylmethacrylate, Electronic filtering, Manufacturing, Glasses

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Proceedings Article | 2 May 2005 Paper

Research on fabrication of aspheres at the Center of Optics Technology (University of Applied Science in Aalen)

Rainer Boerret, Jochen Burger, Andreas Bich, Christoph Gall, Thomas Hellmuth

Proceedings Volume 10315, 1031508 (2005) https://doi.org/10.1117/12.606091

KEYWORDS: Aspheric lenses, Applied sciences, Aspheric optics, Optical engineering, Optical components, Polishing, Mechatronics, Optical fabrication, Metrology

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Proceedings Article | 14 September 2001 Paper

ArF step-and-scan system with 0.75 NA for the 0.10um node

Bert Vleeming, Barbra Heskamp, Hans Bakker, Leon Verstappen, Jo Finders, Jan Stoeten, Rainer Boerret, Oliver Roempp

Proceedings Volume 4346, (2001) https://doi.org/10.1117/12.435761

KEYWORDS: Optical alignment, Reticles, Semiconducting wafers, Data transmission, Imaging systems, Photomasks, Lithography, Distortion, Monochromatic aberrations, Fiber optic illuminators

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Proceedings Article | 30 September 1994 Paper

Manufacturing technologies for high-throughput imaging x-ray telescopes: XMM carbon fiber reinforced plastic (CFRP) technology compared to other x-ray systems

Rainer Boerret, Holger Glatzel, Michael Schmidt

Proceedings Volume 2210, (1994) https://doi.org/10.1117/12.188095

KEYWORDS: Mirrors, X-ray telescopes, Nickel, X-rays, Polishing, X-ray optics, Fabrication, Space telescopes, Cadmium sulfide, Optics manufacturing

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Proceedings Article | 13 September 1994 Paper

X-ray spectroscopy mission (XMM) telescope development

Philippe Gondoin, Kees van Katwijk, Bernd Aschenbach, N. Schulz, Rainer Boerret, Holger Glatzel, Oberto Citterio

Proceedings Volume 2209, (1994) https://doi.org/10.1117/12.185278

KEYWORDS: Mirrors, Nickel, X-rays, Telescopes, Space telescopes, X-ray telescopes, Manufacturing, Spectroscopy, Image quality, Gold

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Proceedings Article | 21 January 1993 Paper

Measurement and analysis of a set of mandrels for the JET-X x-ray optics

Rainer Boerret, Holger Glatzel, Klaus-Friedrich Beckstette, Paolo Conconi, Oberto Citterio

Proceedings Volume 1742, (1993) https://doi.org/10.1117/12.140562

KEYWORDS: Ray tracing, Metrology, Mirrors, Polishing, Telescopes, X-ray telescopes, Nickel, Aluminum, Received signal strength, Surface finishing

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Showing 5 of 31 publications

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