Dr. Ralf Leutz Profile

Dr. Ralf Leutz

at Leutz Optics and Illumination UG

SPIE Involvement:

Author

Publications (17)

Proceedings Article | 7 June 2021 Paper

Silicone-on-glass (SOG) diffractive optical elements (DOE) for the correction of chromatic aberrations and lens shape

Harald Ries, Ralf Leutz

Proceedings Volume 11853, 1185304 (2021) https://doi.org/10.1117/12.2595141

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Proceedings Article | 7 August 2018 Paper

Tight tolerances for large-volume precision-pressed plastic optics (COMPAS)

Marc Wielandts, Rémi Wielandts, Ralf Leutz

Proceedings Volume 10829, 108290E (2018) https://doi.org/10.1117/12.2318670

KEYWORDS: Optics manufacturing, Polymers, Optical components, Tolerancing, Lenses, Optical arrays, Precision optics, Precision glass molding, Cameras

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Proceedings Article | 22 September 2011 Paper

Evaluation and comparison of different designs and materials for Fresnel lens-based solar concentrators

Ling Fu, Ralf Leutz, Hans Philipp Annen

Proceedings Volume 8124, 81240E (2011) https://doi.org/10.1117/12.893390

KEYWORDS: Polymethylmethacrylate, Fresnel lenses, Silicon, Solar concentrators, Optics manufacturing, Glasses, Refractive index, Optical design, Prisms, Geometrical optics

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Proceedings Article | 13 September 2011 Paper

Direct comparison of polymethylmetacrylate (PMMA) and silicone-on-glass (SOG) for Fresnel lenses in concentrating photovoltaics (CPV)

Hans Philipp Annen, Ling Fu, Ralf Leutz, Luis González, Jehu Mbakop

Proceedings Volume 8112, 811204 (2011) https://doi.org/10.1117/12.893884

KEYWORDS: Silicon, Polymethylmethacrylate, Prisms, Glasses, Lenses, Fresnel lenses, Solar concentrators, Refractive index, Optical components, Thermal effects

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Proceedings Article | 19 August 2010 Paper

Optical design for reliability and efficiency in concentrating photovoltaics

Ralf Leutz, Hans Philipp Annen, Ling Fu

Proceedings Volume 7773, 777304 (2010) https://doi.org/10.1117/12.861156

KEYWORDS: Tolerancing, Solar concentrators, Optical design, Fresnel lenses, Error analysis, Optics manufacturing, Concentrated solar cells, Reliability, Receivers, Assembly tolerances

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Proceedings Article | 18 August 2010 Paper

Secondary optics for Fresnel lens solar concentrators

Ling Fu, Ralf Leutz, Hans Philipp Annen

Proceedings Volume 7785, 778509 (2010) https://doi.org/10.1117/12.860438

KEYWORDS: Solar concentrators, Fresnel lenses, Nonimaging optics, Geometrical optics, Optics manufacturing, Tolerancing, Optical components, Reflectivity, Compound parabolic concentrators, Glasses

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Proceedings Article | 21 August 2009 Paper

Collimator design for extended sources

Hans Philipp Annen, Ling Fu, Ralf Leutz

Proceedings Volume 7423, 74230D (2009) https://doi.org/10.1117/12.827355

KEYWORDS: Collimation, Fresnel lenses, Prisms, Lamps, Nonimaging optics, Collimators, Optics manufacturing, Mirrors, Reflectors, Light

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Proceedings Article | 20 August 2009 Paper

Stress in large-area optics for solar concentrators

Ralf Leutz, Ling Fu, Hans Philipp Annen

Proceedings Volume 7412, 741206 (2009) https://doi.org/10.1117/12.827357

KEYWORDS: Glasses, Optics manufacturing, Polymethylmethacrylate, Solar concentrators, Fresnel lenses, Silicon, Optical components, Birefringence, Photoelasticity, Solar energy

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Proceedings Article | 10 September 2008 Paper

Optical tests for reliability and efficiency of photovoltaic concentrators

Ralf Leutz, Hans Philipp Annen, Ling Fu

Proceedings Volume 7048, 704809 (2008) https://doi.org/10.1117/12.795266

KEYWORDS: Solar concentrators, Optical testing, Cameras, Collimation, Mirrors, Sun, Imaging systems, Fresnel lenses, Nonimaging optics, Lamps

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Proceedings Article | 12 September 2006 Paper

Multiple light recycling with the Carambola

Ling Fu, Ralf Leutz, Harald Ries

Proceedings Volume 6338, 63380D (2006) https://doi.org/10.1117/12.679580

KEYWORDS: Light, Reflectivity, Geometrical optics, Lamps, Reflectors, Optical design, Xenon, Light sources, Spherical lenses, Mirrors

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Proceedings Article | 12 September 2006 Paper

Light recycling in filament light sources

Ling Fu, Ralf Leutz, Harald Ries

Proceedings Volume 6338, 633802 (2006) https://doi.org/10.1117/12.679513

KEYWORDS: Thermal modeling, Lamps, Light, Light sources, Integrated modeling, Photography, Tungsten, Chemical elements, Thermodynamics, Material characterization

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Proceedings Article | 11 January 2006 Paper

Beating the brightness theorem: thermodynamics of light recycling (experimental)

Ling Fu, Ralf Leutz, Harald Ries

Proceedings Volume 6033, 603304 (2006) https://doi.org/10.1117/12.668058

KEYWORDS: Lamps, Mercury, Absorption, Thermodynamics, Spectroscopy, Plasma, Light sources, Mirrors, Calibration, Reflectors

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Proceedings Article | 14 September 2005 Paper

Light recycling in solid state devices

Ling Fu, Ralf Leutz, Harald Ries

Proceedings Volume 5941, 59411L (2005) https://doi.org/10.1117/12.616499

KEYWORDS: Light, Light emitting diodes, Light sources, Absorption, Beam splitters, Solid state electronics, Lamps, Mirrors, Thermodynamics, Solid state physics

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Proceedings Article | 12 November 2003 Paper

Squaring the circle: the use of microstructures for converting and homogenizing beam patterns

Ralf Leutz, Harald Ries

Proceedings Volume 5186, (2003) https://doi.org/10.1117/12.506792

KEYWORDS: Waveguides, Prisms, Solar concentrators, Solids, Performance modeling, Reflectivity, Reflectors, Monte Carlo methods, 3D microstructuring, Silver

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Proceedings Article | 12 November 2003 Paper

Tailored Fresnel optics: I. Global shape

Harald Ries, Ralf Leutz

Proceedings Volume 5186, (2003) https://doi.org/10.1117/12.506805

KEYWORDS: Fresnel lenses, Geometrical optics, Prisms, Objectives, Solids, Lens design, Differential equations, Reflectors, Radiation effects, Refraction

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Proceedings Article | 12 November 2003 Paper

Tailored Fresnel optics II: the facets

Ralf Leutz, Harald Ries

Proceedings Volume 5186, (2003) https://doi.org/10.1117/12.506818

KEYWORDS: Prisms, Fresnel lenses, Lens design, Geometrical optics, Refraction, Chromatic aberrations, Sun, Receivers, Monochromatic aberrations, Silver

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Proceedings Article | 19 November 2001 Paper

Nonideal concentration of nonimaging linear Fresnel lenses

Ralf Leutz, Akio Suzuki, Atsushi Akisawa, Takao Kashiwagi

Proceedings Volume 4446, (2001) https://doi.org/10.1117/12.448808

KEYWORDS: Solar concentrators, Refractive index, Prisms, Fresnel lenses, Reflection, Nonimaging optics, Lens design, Compound parabolic concentrators, Receivers, Geometrical optics

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Showing 5 of 17 publications

Conference Committee Involvement (15)

Reliability of Photovoltaic Cells, Modules, Components, and Systems X

6 August 2017 | San Diego, California, United States

Reliability of Photovoltaic Cells, Modules, Components, and Systems IX

28 August 2016 | San Diego, California, United States

Reliability of Photovoltaic Cells, Modules, Components, and Systems VIII

9 August 2015 | San Diego, California, United States

Reliability of Photovoltaic Cells, Modules, Components, and Systems VII

20 August 2014 | San Diego, California, United States

Reliability of Photovoltaic Cells, Modules, Components, and Systems VI

27 August 2013 | San Diego, California, United States

Nonimaging Optics: Efficient Design for Illumination and Solar Concentration X

25 August 2013 | San Diego, California, United States

Reliability of Photovoltaic Cells, Modules, Components, and Systems V

14 August 2012 | San Diego, California, United States

Nonimaging Optics: Efficient Design for Illumination and Solar Concentration IX

12 August 2012 | San Diego, California, United States

Reliability of Photovoltaic Cells, Modules, Components, and Systems IV

23 August 2011 | San Diego, California, United States

Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VIII

21 August 2011 | San Diego, California, United States

Reliability of Photovoltaic Cells, Modules, Components, and Systems III

3 August 2010 | San Diego, California, United States

Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VII

1 August 2010 | San Diego, California, United States

Reliability of Photovoltaic Cells, Modules, Components, and Systems II

3 August 2009 | San Diego, California, United States

Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VI

2 August 2009 | San Diego, California, United States

Reliability of Photovoltaic Cells, Modules, Components, and Systems

11 August 2008 | San Diego, California, United States

Showing 5 of 15 Conference Committees

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