Mr. Matthijs H. Keuper Profile

Matthijs H. Keuper

Optics Engineer at inVisua

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Publications (3)

Proceedings Article | 3 February 2009 Paper

Color-consistent LED modules for general lighting

Christoph Hoelen, Peter van der Burgt, Paul Jungwirth, Matthijs Keuper, Kwong Man, Claudia Mutter, Jan-Willem ter Weeme

Proceedings Volume 7231, 72310A (2009) https://doi.org/10.1117/12.816465

KEYWORDS: Light emitting diodes, LED lighting, Blue light emitting diodes, Light sources and illumination, Control systems, General lighting, Temperature metrology, Lamps, Translucency, Feedback loops

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Proceedings Article | 12 September 2008 Paper

Remote phosphor LED modules for general illumination: toward 200 lm/W general lighting LED light sources

Christoph Hoelen, Huub Borel, Jan de Graaf, Matthijs Keuper, Martijn Lankhorst, Claudia Mutter, Lars Waumans, René Wegh

Proceedings Volume 7058, 70580M (2008) https://doi.org/10.1117/12.799502

KEYWORDS: Light emitting diodes, Blue light emitting diodes, LED lighting, Luminous efficiency, Diffusers, General lighting, Lamps, Garnet, Temperature metrology, Coating

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Proceedings Article | 29 September 2004 Paper

Optimal design of a nonimaging TIR doublet lens for an illumination system using an LED source

John Bortz, Narkis Shatz, Matthijs Keuper

Proceedings Volume 5529, (2004) https://doi.org/10.1117/12.562598

KEYWORDS: Light emitting diodes, Optical design, Lens design, Nonimaging optics, Aspheric lenses, Compound parabolic concentrators, Optical components, Light sources, LED lighting, Antireflective coatings

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