Prof. Harald Ries Profile

Prof. Harald Ries

Executive at OEC AG

SPIE Involvement:

Author

Publications (38)

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 | 21 November 2017 Open Access

Improving the fiber coupling efficiency for DARWIN by loss-less shaping of the receive beams

Ch. Voland, Th. Weigel, Th. Dreischer, O. Wallner, K. Ergenzinger, H. Ries, R. Jetter, A. Vosteen

Proceedings Volume 10567, 105673H (2017) https://doi.org/10.1117/12.2308041

KEYWORDS: Beam shaping, Fiber couplers, Mirrors, Wavefronts, Tolerancing, Interferometers, Solids, Planets, Optical simulations, Manufacturing

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Proceedings Article | 18 December 2012 Paper

Double tailoring of freeform surfaces for off-axis aplanatic systems

Angelika Hofmann, Julia Unterhinninghofen, Harald Ries, Stefan Kaiser

Proceedings Volume 8550, 855014 (2012) https://doi.org/10.1117/12.981186

KEYWORDS: Heads up displays, Eye, Freeform optics, Distortion, Monochromatic aberrations, LCDs, Nonimaging optics, Image quality, Mirrors, Modulation transfer functions

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Proceedings Article | 20 September 2011 Paper

Boundary conditions for balancing light in tailoring freeform surfaces

H. Ries

Proceedings Volume 8170, 817002 (2011) https://doi.org/10.1117/12.898613

KEYWORDS: Optical spheres, Reflectors, Light, Freeform optics, Geometrical optics, Partial differential equations, Optical design, Precision optics, Mirrors, Radio optics

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Proceedings Article | 24 September 2008 Paper

Street-lighting with LEDs

Andreas Timinger, Harald Ries

Proceedings Volume 7103, 71030H (2008) https://doi.org/10.1117/12.797269

KEYWORDS: Lamps, Light emitting diodes, Metals, Light sources and illumination, Light sources, Luminous efficacy, Mercury, Light, Reflectors, Freeform optics

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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 | 1 September 2005 Paper

Optimized tailoring for lens design

Rainer Jetter, Harald Ries

Proceedings Volume 5875, 58750A (2005) https://doi.org/10.1117/12.615881

KEYWORDS: Spherical lenses, Aspheric lenses, Chemical elements, Optics manufacturing, Imaging systems, Lens design, Optical design, Differential equations, Monochromatic aberrations, Code v

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Proceedings Article | 24 August 2005 Paper

Laser beam shaping by double tailoring

Harald Ries

Proceedings Volume 5876, 587607 (2005) https://doi.org/10.1117/12.616652

KEYWORDS: Mirrors, Differential equations, Wavefronts, Reflectors, Ray tracing, Patents, Diffraction, Freeform optics, Aspheric lenses, Imaging systems

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Proceedings Article | 22 August 2005 Paper

Characterization of the thermodynamic quality of light sources

Julius Muschaweck, Harald Ries

Proceedings Volume 5942, 594206 (2005) https://doi.org/10.1117/12.615874

KEYWORDS: Light emitting diodes, Lamps, Light sources, Optical spheres, Thermodynamics, Photography, Ray tracing, Ceramics, Optical design, Visualization

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SPIE Journal Paper | 1 July 2004

Optimized additive mixing of colored light-emitting diode sources

Harald Ries, Ines Leike, Julius Muschaweck

OE, Vol. 43, Issue 07, (July 2004) https://doi.org/10.1117/12.10.1117/1.1753273

KEYWORDS: Light emitting diodes, Light sources, Lamps, Light, Manufacturing, Optical engineering, Luminous efficiency, Quantum efficiency, Eye, Visualization

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