Technologies
LEDS, OLEDS, OPTICS, THERMAL MANAGEMENT, ELECTRONICS & SMART CONTROLS, MEASUREMENT & SIMULATION, STANDARDIZATION, INTELLECTUAL PROPERTIES
Research on OLEDs with Ultrathin Emissive Layers and a Spacer-Free Structure

Research on OLEDs with Ultrathin Emissive Layers and a Spacer-Free Structure

Since C.W Tang demonstrated the first organic light-emitting diodes (OLEDs) based on a double-layer structure of organic materials in 1987, flat-panel displays and lighting applications based on OLED technology have grown dramatically because of their attractive features such as ultra-thin structure, light-weight and flexibility. To achieve a desirable OLED performance, a host-dopant system is adopted. This not only leads to an increase in material cost and device processing time, but also makes it difficult to control dopant concentration accurately. Therefore, OLEDs with dopant-free and ultrathin emissive layers (UEMLs) have aroused much attention. Shengfan Wu, Sihua Li, Qi Sun, Chenchao Huang & Man-Keung Fung recently published the results of their research on such ultrathin emissive layers (UEMLs) of phosphorescent materials for OLED applications.

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Cree Announces Outstanding R&D LED Efficacy Combined with Superior Color Quality

Cree Announces Outstanding R&D LED Efficacy Combined with Superior Color Quality

Cree, Inc. records another LED industry first with the demonstration of a single high-power LED delivering nearly 1,600 lumens at 134 lumens-per-watt (LPW) with similar color quality as an incandescent light bulb. With this result, Cree achieved a breakthrough 25 percent increase in lumens per watt (LPW) over production LEDs of similar color quality under operating conditions found in real-world LED lighting applications. This important milestone coupled with Cree’s latest SC5 Technology™ platform will lead to LED systems with increased performance, lower cost and better light.

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ORNL Superhydrophobic Glass Coating Offers Clear Benefits - Maybe Also for Lighting Optics

ORNL Superhydrophobic Glass Coating Offers Clear Benefits - Maybe Also for Lighting Optics

A moth’s eye and lotus leaf were the inspirations for an antireflective water-repelling, or superhydrophobic, glass coating that holds significant potential for solar panels, lenses, detectors, windows, weapons systems and many other products. The discovery by researchers at the Department of Energy’s Oak Ridge National Laboratory, detailed in a paper published in the Journal of Materials Chemistry C, is based on a mechanically robust nanostructured layer of porous glass film. The coating can be customized to be superhydrophobic, fog-resistant and antireflective.

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Novel Nanoparticle Production Method Could Lead to Better LED Lights, Lenses and Solar Cells

Novel Nanoparticle Production Method Could Lead to Better LED Lights, Lenses and Solar Cells

Sandia National Laboratories has come up with an inexpensive way to synthesize titanium-dioxide nanoparticles and is seeking partners who can demonstrate the process at industrial scale for everything from solar cells to LEDs. Titanium-dioxide (TiO2) nanoparticles show great promise as fillers to tune the refractive index of anti-reflective coatings on signs and optical encapsulants for LEDs, solar cells and other optical devices.

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Litecool Turns LED Packaging on Its Side

Litecool Turns LED Packaging on Its Side

Litecool has produced LED packages in a vertical orientation rather than horizontal. This means that the dielectric layers only have a minor impact on the thermal performance of the LED package and allow the heat to escape more effectively through the metallic parts of the package. This has significant benefits for flip-chip packaging where dielectric layers are usually very close to the diode.

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The “Internet of Light” – the Key to the “Internet of Things”

The “Internet of Light” – the Key to the “Internet of Things”

The Internet of Things is the next industrial revolution. As a specialist for innovative lighting components and systems, Tridonic is convinced that lighting will play a decisive role in the Internet of Things (IoT). Therefore, Tridonic developed the toolbox net4more which will not only connect luminaires with each other, but deliver an added value that goes far beyond lighting. Where do we stand today?

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The Connected Lighting Alliance Endorses ZigBee 3.0 for Residential Lighting

The Connected Lighting Alliance Endorses ZigBee 3.0 for Residential Lighting

PISCATAWAY, N.J. (March 11 2016) – The Connected Lighting Alliance [TCLA] announced today the endorsement of ZigBee 3.0, as the preferred open standard for residential connected lighting applications, simplifying choices for both lighting companies and consumers.

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How Much Can the Color of Nominal CCT Vary?

How Much Can the Color of Nominal CCT Vary?

The threshold at which a color difference becomes perceptible is defined by a MacAdam ellipse. A MacAdam ellipse is drawn over the color space in such a way that the color at its center point deviates by a certain amount from colors at any point along its edge. The scale of a MacAdam ellipse is determined by the standard deviation of color matching (SDCM). A color difference of 1 SDCM “step” is not visible; 2 to 4 steps is barely visible; and 5 or more steps is readily noticeable.

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Lumitech Licenses Seoul Semiconductor for  PI-LED Technology Applications

Lumitech Licenses Seoul Semiconductor for PI-LED Technology Applications

Seoul Semiconductor, a global leading LED components manufacturer from Korea, and the Austrian company Lumitech, a leading manufacturer of components for Human Centric Lighting announced a licensing agreement for PI-LED technology patents. These patents govern the industrial trade mark rights of Lumitech’s PI-LED technology, which can implement tunable white from 2.500 to 7.000K with perfect colour rendering in a high and constant efficiency. Based on the license agreement, Seoul Semiconductor has the right to offer tunable white components based on the leading PI-LED technology, worldwide.

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EDITORIAL

3-Pad LED Flip Chip COB by Flip Chip Opto

3-Pad LED Flip Chip COB by Flip Chip Opto Wafer level packaging and flip chip design are the most recent trends in LED manufacturing and packaging. These LED types are perfectly suited for producing COB modules. This combination already promises better thermal performance than standard SMD package based products. However, there is still ... Read more »

EDITORIAL

LFI 2016 Touts LED Lighting and Digital Control Technology Transformation by Dr. Nisa Khan

LFI 2016 Touts LED Lighting and Digital Control Technology Transformation by Dr. Nisa Khan The 27th Annual LightFair International (LFI) conference was dominated by LED lighting coupled with internet-based control via wireless networks that continues to proliferate in today’s world. The world is increasingly becoming drenched with Internet of Things (IoT) discussions, demonstrations and ... Read more »

EDITORIAL

Inteligent LED Lighting System for Efficient Parking Concepts

Inteligent LED Lighting System for Efficient Parking Concepts Lighting plays a key role in parking management in two important aspects: the cost, including consumption and maintenance, and users experience, which results in customer’s loyalty. That’s why LED lighting is a key technology for parking lighting because it gets a better lighting for each parking ... Read more »

EDITORIAL

Luger Research Organizes a One-Day Innovation Workshop with Prof. DDr. Sergei Ikovenko (M.I.T. USA) in Dornbirn, Austria

Luger Research Organizes a One-Day Innovation Workshop with Prof. DDr. Sergei Ikovenko (M.I.T. USA) in Dornbirn, Austria At the 17th of June 2016, Prof. DDr. Sergei Ikovenko, a global leader in systematic innovation, will explain the key strategies for innovations at the Hotel Martinspark. Successful companies like Samsung, Philips, General Electric and Intel have attended Prof. Ikovenko’s workshops before. This is a ... Read more »

EDITORIAL

230 VAC Driven LED Modules with Strongly Reduced Flicker, by euroLighting

230 VAC Driven LED Modules with Strongly Reduced Flicker, by euroLighting One of the continuing trends in LED lighting is toward AC driven LED modules. Big progress has been made regarding dimmability and reduction of flicker. However, there are still differences in the various concepts that lead to very different results. Wolfgang Endrich, founder and managing director ... Read more »

EDITORIAL

Tridonic's New Generation for Greater Flexibility: The CLE Quadrant G2 ADV LED Module

Tridonic's New Generation for Greater Flexibility: The CLE Quadrant G2 ADV LED Module The new generation of the LED modules CLE Quadrant G2 ADV (Advanced) now offers even greater flexibility for luminaire manufacturers for round ceiling and pendant luminaries. High efficiency and a high luminous flux are now not just available optionally but can be combined in a single module. Read more »

EDITORIAL

White Hybrid Light-Emitting Diodes: A Plausible Solution for Commercialization and Health Issues, by the University of Erlangen-Nuremberg (FAU)

White Hybrid Light-Emitting Diodes: A Plausible Solution for Commercialization and Health Issues, by the University of Erlangen-Nuremberg (FAU) One of the challenges in terms of commercialization of white LEDs is the need for cheap, inorganic phosphors. In this context, hybrid LEDs have recently emerged as a new approach based on downconverting organic coatings. The authors, Pedro B. Coto from the Institute for Theoretical Physics, Marlene ... Read more »

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