Browsing by Subject "Lighting"

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  • Additive manufacturing of reflective optics: Evaluating finishing methods 
    Leuteritz, Georg; Lachmayer, Roland (Bellingham, WA : SPIE - International Society for Optical Engineering, 2018)
    Individually shaped light distributions become more and more important in lighting technologies and thus the importance of additively manufactured reflectors increases significantly. The vast field of applications ranges ...
  • Compensation of adverse growing media effects on plant growth and morphology by supplemental LED lighting 
    Solbach, Jan Andreas; Fricke, Andreas; Stützel, Hartmut (San Francisco, California, US : PLOS, 2023)
    There is an increasing interest in alternatives to peat in growing media due to environmental constraints. However, plants grown in peat substitutes often show impaired growth compared to plants grown in peat-based media. ...
  • Efficient conceptual design for LED-based pixel light vehicle headlamps 
    Held, Marcel Philipp; Lachmayer, Roland (Bellingham, Wash. : SPIE, 2017)
    High-resolution vehicle headlamps represent a future-oriented technology that can be used to increase traffic safety and driving comfort. As a further development to the current Matrix Beam headlamps, LED-based pixel light ...
  • Modeling of photoluminescence in laser-based lighting systems 
    Chatzizyrli, Elisavet; Tinne, Nadine; Lachmayer, Roland; Neumann, Jörg; Kracht, Dietmar (Bellingham, Wash. : SPIE, 2017)
    The development of laser-based lighting systems has been the latest step towards a revolution in illumination technology brought about by solid-state lighting. Laser-activated remote phosphor systems produce white light ...
  • Opto-Thermal simulation model for optimizing laser-excited remote phosphor systems 
    Chatzizyrli, Elisavet; Tinne, Nadine; Lachmayer, Roland; Neumann, Jörg; Kracht, Dietmar (Bellingham, Wash. : SPIE, 2018)
    A new family of lighting products is developed as laser diodes replace LEDs in the remote phosphor configuration. The resulting lighting systems, also known as laser-excited remote phosphor systems, exhibit advanced ...
  • Rapid prototyping of reflectors for vehicle lighting using laser activated remote phosphor 
    Lachmayer, Roland; Kloppenburg, Gerolf; Wolf, Alexander (Bellingham, Wash. : SPIE, 2015)
    Bright white light sources are of significant importance for automotive front lighting systems. Todays upper class vehicles mainly use HID or LED as light source. As a further step in this development laser diode based ...
  • Survey of on-road image projection with pixel light systems 
    Rizvi, Sadiq; Knöchelmann, Marvin; Ley, Peer-Phillip; Lachmayer, Roland (Bellingham, Wash. : SPIE, 2017)
    HID, LED and laser-based high resolution automotive headlamps, as of late known as pixel light systems', are at the forefront of the developing technologies paving the way for autonomous driving. In addition to light ...
  • Temperature issues with white laser diodes, calculation and approach for new packages 
    Lachmayer, Roland; Kloppenburg, Gerolf; Stephan, Serge (Bellingham, Wash. : SPIE, 2015)
    Bright white light sources are of significant importance for automotive front lighting systems. Today's upper class systems mainly use HID or LED light sources. As a further step laser diode based systems offer a high ...
  • User evaluation study on illumination requirements to design an augmented reality projector for open liver surgery 
    Ilango, Shivaraman; Knöchelmann, Marvin; Kahrs, Lüder Alexander; Wolf, Alexander; Ortmaier, Tobias; Lachmayer, Roland (Bellingham, Wash. : SPIE, 2018)
    Projector based augmented reality serves as an alternate visual guidance tool for surgeons when performing complicated open surgeries. In projector based augmented reality, image overlay projection is a technique that ...