Mr. Frédéric Lamontagne Profile

Frédéric Lamontagne

Researcher/Optomechanical at Laval University

SPIE Involvement:

Author

Area of Expertise:

Optomechanics , Tolerance analysis , Optomechanical engineering , Lens mounting , Finite elements analysis , Astronomical instrumentation

Websites:

Company Website

Profile Summary

Frédéric Lamontagne is a senior optomechanical engineer with over 20 years of professional experience. He has conducted advanced research in the field of optomechanics and participated in the design, development and testing of several complex optical systems for astronomical, space, military, medical, scientific and industrial applications. His primary field of interest is optomechanical design and performance analysis of complex optical systems operating in severe environmental conditions. Over the past few years, Frédéric has performed a comprehensive study on the interaction between lenses and mounts and on optomechanical tolerance analysis. He has authored a chapter and co-authored two chapters on optomechanical tolerance analysis and lens mounting in the 2nd edition of the Handbook of Optomechanical Engineering. He has also authored several technical papers and has 10 granted US patents.

Publications (21)

Proceedings Article | 17 June 2024 Presentation + Paper

Presentation + Paper

Optical tolerances analysis methodology using realistic optomechanical models

Nathalie Blanchard, Frédéric Lamontagne, Michel Doucet

Proceedings Volume 13019, 130190D (2024) https://doi.org/10.1117/12.3017649

KEYWORDS: Tolerancing, Manufacturing, Optics manufacturing, Active alignment, Optical surfaces, Design, Optical design, Optical mounts, Optical alignment, Optomechanical design, Integrated modeling, Performance modeling

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Proceedings Article | 28 September 2023 Presentation + Paper

Presentation + Paper

Optomechanical mounts for high stability in harsh environmental conditions

Nichola Desnoyers, Frederic Lamontagne, Martin Grenier, Mathieu Legros, Simon Paradis, Mathieu Tremblay, Bruno Leduc

Proceedings Volume 12669, 126690B (2023) https://doi.org/10.1117/12.2676441

KEYWORDS: Mirror mounts, Mirrors, Breadboards, Temperature metrology, Thermal stability, Prototyping, Design and modelling, Optical mounts, Optomechanical components, Precision lens assemblies

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Proceedings Article | 14 September 2023 Paper

Paper

Tolerancing model for better prediction

Nathalie Blanchard, Frédéric Lamontagne, Mélanie Leclerc

Proceedings Volume 12798, 127981T (2023) https://doi.org/10.1117/12.2692507

KEYWORDS: Tolerancing, Systems modeling, Alignment modeling, Manufacturing, Optical alignment, Lenses, Optomechanical design, Optical analysis, Optical design, Optical design software, Optical tolerancing

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Proceedings Article | 3 October 2022 Presentation + Paper

Presentation + Paper

Integrated opto-mechanical tolerance analysis

Frédéric Lamontagne, Nathalie Blanchard, Simon Paradis, Nichola Desnoyers

Proceedings Volume 12222, 122220G (2022) https://doi.org/10.1117/12.2633388

KEYWORDS: Tolerancing, Optics manufacturing, Optical mounts, Optical design software, Optical design, Optical components, Manufacturing, Aspheric lenses, Optical alignment, Optical simulations

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Proceedings Article | 3 October 2022 Presentation + Paper

Presentation + Paper

Powerful standalone application for realistic optical tolerancing

Nathalie Blanchard, Frédéric Lamontagne, Simon Paradis, Nichola Desnoyers

Proceedings Volume 12222, 122220H (2022) https://doi.org/10.1117/12.2633367

KEYWORDS: Tolerancing, Comets, Modulation transfer functions, Optical design, Optics manufacturing, Indium oxide, Interfaces, Monte Carlo methods, Zemax, Manufacturing

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SPIE Journal Paper | 24 March 2021 Open Access

Open Access

Methods to achieve fast, accurate, and mechanically robust optical breadboard alignment

Martin Grenier, Nichola Desnoyers, Frederic Lamontagne, Bruno Leduc, Mathieu Legros, Simon Paradis

OE, Vol. 60, Issue 05, 051213, (March 2021) https://doi.org/10.1117/12.10.1117/1.OE.60.5.051213

KEYWORDS: Optical spheres, Optical alignment, Optical components, Mirrors, Sensors, Optical engineering, Interfaces, Optical testing, Mirror mounts, Error analysis

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Typical laboratory optical systems use commercially off-the-shelf components in which emphasis is oriented toward ease of assembly and a wide range of adjustability. However, these mounts often require individual alignments that, when each degree of adjustability is cumulated in a complex optical system, can be inefficient and time consuming. Furthermore, most of these optomechanical mounts lack the mechanical robustness required to maintain operational performances out of the laboratory environment. An optomechanical assembly method based on passively aligning design features is proposed to simplify breadboard level optical systems, to improve alignment accuracy and maintaining operational pointing stability. Given the recent improvements in lens passive centering techniques, it seemed worth exploring methods to reduce alignment time and improve the mechanical robustness of laboratory setups. Recent studies show that a typical optical lens centering of <1 arc min with respect to its mount can be achieved using patented auto centering and edge contact mounting technologies. To achieve similar position accuracy between multiple lenses on a portable breadboard, lens mounts should be designed and built with proper reference surfaces and a system should easily reference one mount with respect to the other. The use of reference spheres and dedicated optomechanical mounts is employed to leverage the standard threaded holes of laboratory breadboards and achieve precise lens mount positioning. A series of optomechanical mounts incorporating these techniques are therefore tested. Position accuracy and repeatability are measured mechanically with a coordinate measuring machine and optically with the active monitoring of a laser beam centroid position. Measured position accuracy at the optomechanical mount level is <50 μm with a repeatability of less than 5 μm per interface. The optomechanical mounts robustness is tested within typical storage temperature range of −46 ° C to 63°C and at vibrations levels exceeding typical shipping conditions. Measured optical pointing stability of a simple optical system after environmental testing was found to be under 25 μm. This method should be a promising solution to bridge the design technological gap between the early prototyping and the production phases.

SPIE Journal Paper | 1 March 2021 Open Access

Open Access

High accuracy lens centering using edge contact mounting

Frédéric Lamontagne, Maxime Savard, Nichola Desnoyers, Mathieu Tremblay

OE, Vol. 60, Issue 05, 051212, (March 2021) https://doi.org/10.1117/12.10.1117/1.OE.60.5.051212

KEYWORDS: Spherical lenses, Optical mounts, Manufacturing, Contact lenses, Tolerancing, Interfaces, Optics manufacturing, Optical engineering, Standards development, Optical components

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Proceedings Article | 30 August 2019 Paper

Paper

Lens centering using edge contact mounting

Frédéric Lamontagne, Maxime Savard, Nichola Desnoyers, Mathieu Tremblay

Proceedings Volume 11103, 1110304 (2019) https://doi.org/10.1117/12.2528728

KEYWORDS: Spherical lenses, Optical mounts, Manufacturing, Tolerancing, Interfaces, Contact lenses, Optics manufacturing, Optical components, Indium oxide, Standards development

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SPIE Journal Paper | 17 August 2018 Open Access

Open Access

Aspheric lens mounting

Frédéric Lamontagne, Ulrike Fuchs, Martin Trabert, Anna Möhl

OE, Vol. 57, Issue 10, 101708, (August 2018) https://doi.org/10.1117/12.10.1117/1.OE.57.10.101708

KEYWORDS: Aspheric lenses, Optical spheres, Interfaces, Optics manufacturing, Manufacturing, Spherical lenses, Tolerancing, Optical alignment, Lens manufacturing, Optical engineering

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Proceedings Article | 27 November 2017 Paper

Paper

Aspheric lens mounting

Frédéric Lamontagne, Ulrike Fuchs, Martin Trabert, Anna Möhl

Proceedings Volume 10590, 1059025 (2017) https://doi.org/10.1117/12.2285435

KEYWORDS: Aspheric lenses, Optomechanical design, Optical alignment

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Proceedings Article | 23 August 2017 Paper

Paper

Optomechanical design of TMT NFIRAOS Subsystems at INO

Frédéric Lamontagne, Nichola Desnoyers, Martin Grenier, Pierre Cottin, Mélanie Leclerc, Olivier Martin, Louis Buteau-Vaillancourt, Marc-André Boucher, Reston Nash, Olivier Lardière, David Andersen, Jenny Atwood, Alexis Hill, Peter Byrnes, Glen Herriot, Joeleff Fitzsimmons, Jean-Pierre Véran

Proceedings Volume 10371, 103710N (2017) https://doi.org/10.1117/12.2276954

KEYWORDS: Large telescopes, Mirror mounts, Optical mounts, Optomechanical design, Telescopes, Integrated optics, Adaptive optics, Finite element methods, Infrared imaging, Mirrors

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Proceedings Article | 27 September 2016 Paper

Paper

High precision optomechanical assembly using threads as mechanical reference

Frédéric Lamontagne, Nichola Desnoyers, Guy Bergeron, Mario Cantin

Proceedings Volume 9951, 995107 (2016) https://doi.org/10.1117/12.2237654

KEYWORDS: Optical alignment, Optics manufacturing, Tolerancing, Optomechanical components, Interfaces, Assembly tolerances, Optical fabrication, Spherical lenses, Lenses, Optical components

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Proceedings Article | 14 September 2016 Paper

Paper

Design and instrumentation of an airborne far infrared radiometer for in-situ measurements of ice clouds

Christian Proulx, Linh Ngo Phong, Frédéric Lamontagne, Min Wang, Bruno Fisette, Louis Martin, François Châteauneuf

Proceedings Volume 9973, 99730F (2016) https://doi.org/10.1117/12.2237927

KEYWORDS: Far infrared, Clouds, Microbolometers, Sensors, Telescopes, Black bodies, Mirrors, Optical filters, Cameras, Signal detection

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Proceedings Article | 22 July 2016 Paper

Paper

NFIRAOS beamsplitters subsystems optomechanical design

Frédéric Lamontagne, Nichola Desnoyers, Reston Nash, Marc-André Boucher, Olivier Martin, Louis Buteau-Vaillancourt, François Châteauneuf, Jenny Atwood, Alexis Hill, Peter W. Byrnes, Glen Herriot, Jean-Pierre Véran

Proceedings Volume 9912, 991205 (2016) https://doi.org/10.1117/12.2233310

KEYWORDS: Beam splitters, Optomechanical design, Wavefronts, Visible radiation, Finite element methods, Adhesives, Safety, Optical simulations, Interfaces, Silica

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Proceedings Article | 23 September 2015 Paper

Paper

Lens auto-centering

Frédéric Lamontagne, Nichola Desnoyers, Michel Doucet, Patrice Côté, Jonny Gauvin, Geneviève Anctil, Mathieu Tremblay

Proceedings Volume 9626, 962619 (2015) https://doi.org/10.1117/12.2196756

KEYWORDS: Optical components, Optics manufacturing, Tolerancing, Indium oxide, Optical fabrication, Manufacturing, Optical alignment, Assembly tolerances, Optical coatings, Optical mounts

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Proceedings Article | 3 September 2015 Paper

Paper

Disruptive advancement in precision lens mounting

Frédéric Lamontagne, Nichola Desnoyers, Michel Doucet, Patrice Côté, Jonny Gauvin, Geneviève Anctil

Proceedings Volume 9582, 95820D (2015) https://doi.org/10.1117/12.2196441

KEYWORDS: Tolerancing, Optics manufacturing, Manufacturing, Optical alignment, Optical mounts, Assembly tolerances, Error analysis, Optical components, Indium oxide, Spherical lenses

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Proceedings Article | 18 September 2013 Paper

Paper

Optomechanical tolerancing and lens alignment using elastomeric lens mount to efficiently meet optical requirements

Frédéric Lamontagne, Michel Doucet, Maxime Savard, Min Wang

Proceedings Volume 8836, 88360M (2013) https://doi.org/10.1117/12.2022775

KEYWORDS: Tolerancing, Error analysis, Optical alignment, Optics manufacturing, Monte Carlo methods, Optical components, Manufacturing, Indium oxide, Optical mounts, Adhesives

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Proceedings Article | 24 October 2012 Paper

Paper

Development of an optomechanical statistical tolerancing method for cost reduction

Frédéric Lamontagne, Michel Doucet

Proceedings Volume 8412, 84121A (2012) https://doi.org/10.1117/12.2001699

KEYWORDS: Tolerancing, Error analysis, Monte Carlo methods, Manufacturing, Received signal strength, Lenses, Assembly tolerances, Optical components, Optics manufacturing, Indium oxide

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Proceedings Article | 13 September 2012 Paper

Paper

Design and test results of the calibration unit for the MOAO demonstrator RAVEN

J.-F. Lavigne, F. Lamontagne, G. Anctil, M. Wang, M. Tremblay, O. Lardière, R. Nash, D. Andersen, M. Savard, P. Côté, C. Bradley, F. Châteauneuf

Proceedings Volume 8447, 844754 (2012) https://doi.org/10.1117/12.925489

KEYWORDS: Adaptive optics, Calibration, Telescopes, Tolerancing, Zemax, Diffraction, Stars, Indium oxide, Mirrors, Relays

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Proceedings Article | 4 May 2010 Paper

Paper

1280 x 960 pixel microscanned infrared imaging module

Loïc Le Noc, Bruno Tremblay, Anne Martel, Claude Chevalier, Nathalie Blanchard, Martin Morissette, Luc Mercier, François Duchesne, Lucie Gagnon, Patrick Couture, Frédéric Lévesque, Nichola Desnoyers, Mathieu Demers, Frédéric Lamontage, Hubert Jerominek, Alain Bergeron

Proceedings Volume 7660, 766021 (2010) https://doi.org/10.1117/12.853377

KEYWORDS: Sensors, Prototyping, Image resolution, Infrared imaging, Spatial resolution, Indium oxide, Thermography, Imaging systems, Combined lens-mirror systems, Infrared detectors

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Proceedings Article | 1 May 2009 Paper

Paper

Uncooled detector, optics, and camera development for THz imaging

Timothy Pope, Michel Doucet, Fabien Dupont, Linda Marchese, Bruno Tremblay, Georges Baldenberger, Sonia Verrault, Frédéric Lamontagne

Proceedings Volume 7311, 73110L (2009) https://doi.org/10.1117/12.819923

KEYWORDS: Terahertz radiation, Sensors, Cameras, Silicon, Absorption, Staring arrays, Indium oxide, Tolerancing, Modulation transfer functions, Antireflective coatings

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Showing 5 of 21 publications

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