Industry Breakthrough: Narrow Emission QD's Improve Warm White LED Performance and Improve Color Rendering
In an interview with LED professional at the Lightfair International in Philadelphia, Dr. Jy Bhardwaj, CTO at Lumileds, explained the advantages of the Quantum Dots technology. Lumileds will launch the first QD LED within the next few months.
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DOCOMO Develops World's First Spherical Drone Display
NTT DOCOMO, INC., in a continuing quest to create innovative new business, has developed a spherical drone display - an unmanned aerial vehicle that displays LED images on an omnidirectional spherical screen while in flight - which DOCOMO believes to be a world first.
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New Cree NX Technology Platform Redefines LED Performance for Next Generation Lighting Systems
Cree announces a major LED breakthrough with the revolutionary NX technology platform that will power the next generation of Cree’s lighting-class LEDs. The NX technology platform enables the new Extreme Density (XD) LED family that delivers up to four times higher lumen density than Cree’s previous generation of high power LEDs. This new technology platform makes possible innovative new designs, eliminating current constraints for a wide spectrum of lighting applications such as color-mixing, directional lighting and industrial lighting.
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Method to Control Light Propagation in Waveguides
A team of Columbia Engineering researchers, led by Applied Physics Assistant Professor Nanfang Yu, has invented a method to control light propagating in confined pathways, or waveguides, with high efficiency by using nano-antennas. To demonstrate this technique, they built photonic integrated devices that not only had record-small footprints but were also able to maintain optimal performance over an unprecedented broad wavelength range.
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Prof. Shuji Nakamura - The Future is Laser Lighting
PROF. NAKAMURA SAID: "For violet LEDs we reach about 50-100 Acm-2 but the laser diode uses 3-10 kAcm-2 which is about 1,000 times higher than blue LEDs. This leads to very tiny chips in combination with the same phosphors such as YAG types. The light output is about 1,000 times higher than conventional LEDs with the same chip-size".
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Thermal Management of an LED Light Source for Microscopes
Thermal management is a challenge for every LED and LASER solution. Microscope lighting solutions
have some very critical requirements, especially if they concern medical applications. ESCATEC in
Heerbrugg, Switzerland has a lot of experience in that field and covers all relevant technical disciplines.
Wolfgang Plank, head of the MOEMS Future Laboratory and cleanroom, and Gerd Harder, Key Account
Manager, give insights on the design process, thermal simulation and production of an LED light source
for Leica Microsystems’ Ophthalmic Microscope Proveo 8.
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Nanorod LEDs with Two Functions Could Make Multifunctional Displays
Cellphones and other devices could soon be controlled with touchless gestures and charge themselves using ambient light, thanks to new LED arrays that can both emit and detect light. Made of tiny nanorods arrayed in a thin film, the LEDs could enable new interactive functions and multitasking devices. Researchers at the University of Illinois at Urbana-Champaign and Dow Electronic Materials in Marlborough, Massachusetts, report the advance in the Feb. 10 issue of the journal Science.
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LuxLive and SILE Sharpen Focus on End-Users
On November 23rd and 24th, as in previous years, LuxLive was held in the Excel Center close to
London’s City Airport. This year, for the second time since the merger of Revo Media and Pennwell,
LuxLive and Strategies in Light Europe were co-located. Arno Grabher-Meyer, Editor-in-Chief at
LED professional, summarizes his impressions of the event, picking out the more technical oriented
lectures held in the different "arenas".
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CTI Project Results Promise a Bright Future for OLEDs
Developing a low-cost, efficient method of increasing the attractiveness of OLEDs for lighting poses a significant challenge. Thanks to a CTI project, CSEM and Sefar AG have succeeded in designing a promising state-of-the-art way of achieving this aim. This technology opens up new opportunities for applications in residential, architectural, professional lighting segments, as well as consumer electronics.
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Structured Glass Light Guides for Efficient Lighting
Glass injection molding technology (GIMT) for precision glass optics is a relatively new manufacturing
technology. This expertise allows for producing efficient glass optics for LED lighting applications with
special properties like undercut geometry or mounting flanges. A lot of progress has been made since it
was introduced. Christian Passlick, Optical Engineer at Auer Lighting, shows how this improved
technology supports making state-of-the-art light mixing structures for RGB/RGBW LED systems.
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Comparing New Dielectric Materials for Chip-on-Board LED Packages
Thermal management is still one of the most challenging issues in solid state lighting. With the increased application of COB LED technology, the portion of the dielectric material on the overall thermal resistance has become an important topic. Different solutions and new materials have been proposed over the last few years. Hui Zhang, Max Wagner, and Prof. Tran Quoc Khanh from the Laboratory of Lighting Technology at the Technische Universität Darmstadt compared different
materials and present the results of their extensive research.
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LECs - The Light of the Future Thanks Nanostructures
In future they are to light up the inside of handbags or make evening joggers stand out in the dark: Light-emitting electrochemical cells, LECs, offer many advantages compared to familiar LEDs, but there's still something lacking – the right light. Until now only yellow light LECs are suitable for realistic use. But at least one other light colour is needed for more neutral light. Researchers in the Center for Nanointegration (CENIDE) of the University of Duisburg-Essen (UDE) have now been able to selectively change the colour for the first time and at the same time increase the performance of the LECs.
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Optical Lithography Method for Advanced Light Extraction in LEDs
Objective material selection for various target applications is key for successful product development. Efficient light extraction features are crucial for highly efficient LEDs. Thomas Uhrmann and Harun Solak, et.al* from EV Group and Eulitha AG will demonstrate a novel lithography method, PHABLE™, that enables the printing of sub-μm patterns in a non-contact, proximity process.
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High-Index Nanocrystals - Key to Next Generation Advancements in Lighting
Solid-State Lighting is destined to be a next generation lighting option. LEDs have already entered main stream applications and OLED technology has advanced greatly in the past few years in terms of efficacy and performance. Both technologies need to continue to improve performance to achieve high market acceptance. Dr. Gregory Cooper, Chief Technology Officer and Founder of Pixelligent Technologies LLC, illustrates how LED and OLED technology can advance to the next level by incorporating nanomaterials into existing packaging.
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Technologies for Engineering an LED Light Closest to Sunlight
TRI-R is a next-generation LED light source made possible by Toshiba Materials technology and
commercialization together with TOL STUDIO. Using natural light that recreates the solar spectrum,
TRI-R suppresses glare, prevents the loss of object color, and gives fresher, clearer expression to
textures and details. Based on professional research examining the relationship light has with humans
and the environment, this is illumination technology that provides the world surrounding us with the
true and real value of light. Masahiko Yamakawa, Senior Specialist of Toshiba Materials Co.LTD.,
presents how this technology was developed and applied in some projects.
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