Technology News

Technologies | Research | LEDs | Light Generation | Exciton | Apr 15, 2019

TU Vienna - New Method to Generate Light from Exotic Particle States

TU Vienna  - New Method to Generate Light from Exotic Particle States A new type of light-emitting diode has been developed at TU Wien. Light is produced from the radiative decay of exciton complexes in layers of just a few atoms thickness. Read more »

Resources | LpR Article | Technologies | Driver Modules | NFC | Apr 12, 2019

Standardized Programming of Lighting Components Using NFC Technology

Standardized Programming of Lighting Components Using NFC Technology LpR 70 Article, page 88: NFC programming of LED drivers is rapidly gaining popularity as a fast, feature-rich, flexible and easy method to set the operating characteristics of LED drivers inside luminaires. Arnulf Rupp, Chair of MD-SIG, describes how the MD-SIG specification for NFC programming of lighting components makes it easy for luminaire manufacturers to use NFC programming in a production line where multiple brand drivers are used one after the other. Read more »

Resources | LpR Article | Technologies | Controls | Wireless | Bluetooth | Apr 10, 2019

Bluetooth Mesh Protocol as Applied to Lighting

Bluetooth Mesh Protocol as Applied to Lighting Little more than one year ago, Bluetooth SIG released the Bluetooth Mesh standardization. Meanwhile, it has become widely adopted and is also one of the favorite systems for lighting controls. Russ Sharer, Vice President of Global Marketing and Business Development for Fulham, starts with an explanation of the Bluetooth Mesh protocol as applied to lighting control and defining its key elements. In a second portion of the article, he answers questions that lighting control evaluators could be asking their vendor. Read more »

Technologies | Research | Publications | Health | Human Centric Lighting | Mar 26, 2019

3D Bio-Optical Models Reveals How the Human Body Uses the Entire Solar Spectrum

3D Bio-Optical Models Reveals How the Human Body Uses the Entire Solar Spectrum History teaches that global changes to the public's environment mandate a higher level of scrutiny to ensure that we first do no harm. In "Melatonin and the Optics of the Human Body" published in the journal Melatonin Research, Zimmerman and Reiter combine optical ray tracing from lighting and ESR data from the medical industry to model for the first time the 3D free radical distributions generate by lighting sources in the human body. Read more »

Technologies | Research | LEDs | Nano-Structures | Light Extraction | Feb 21, 2019

An Old Story Re-Edited? - Firefly-Inspired Surfaces Improve LED Efficiency

An Old Story Re-Edited? - Firefly-Inspired Surfaces Improve LED Efficiency A new type of light-emitting diode lightbulb could one day light homes and reduce power bills, according to Penn State researchers who suggest that LEDs made with firefly-mimicking structures could improve efficiency. Read more »

Resources | LpR Article | Technologies | Thermal Management | Feb 18, 2019

Materials, Manufacturing and Technologies for Designing Passive Cooling Devices

Materials, Manufacturing and Technologies for Designing Passive Cooling Devices Until recently, incandescent bulbs and fluorescent lights were the dominant light sources. Today it’s the energy efficient, durable and, in the meantime, cost effective, LED. But to achieve these attributes appropriate cooling is still necessary and due to progress over the last few years the need for active cooling solutions is limited to a few high power applications as long as the material and technology is carefully chosen. John Broadbent, Managing Director at Columbia-Staver Ltd., describes the different technologies and materials and gives practical advice on how to find the right solution for an application. Read more »

Resources | LpR Article | Technologies | Smart Lighting & IoT | Bluetooth | Jan 31, 2019

Qualified Bluetooth Mesh – Making Lighting Controls Future-Proof

Qualified Bluetooth Mesh – Making Lighting Controls Future-Proof LpR 69 Article, page 88: At Lightfair USA, Siegfried Luger met with Patrick Durand, Worldwide Technical Director at Future Lighting Solutions. One of Mr. Durand’s striking statements was: “Basically, what we need is to future-proof lighting control.” This was the first time that this important aspect was so clearly addressed by a representative of the industry. This led us to asking Mr. Durand to provide LED professional with a technical article to clarify the current situation, explain the technical background that led him to making that statement and to give an idea of which requirements a controls solution must fulfill to be truly future-proof. Read more »

Technologies | Research | Solid State Lighting | Light Generation | Perovskite | Jan 25, 2019

The Possible Future of Lighting - Paint-On Semiconductors from Ornate Quantum Physics

The Possible Future of Lighting - Paint-On Semiconductors from Ornate Quantum Physics LED lights and monitors, and quality solar panels were born of a revolution in semiconductors that efficiently convert energy to light or vice versa. Now, next-generation semiconducting materials are on the horizon, and in a new study, researchers have uncovered eccentric physics behind their potential to transform lighting technology and photovoltaics yet again. Read more »

Technologies | Research | LEDs | Light Conversion | IR-LEDs | Quantum Dots | Dec 13, 2018

Colloidal Quantum Dots Make LEDs Shine Bright in the Infrared

Colloidal Quantum Dots Make LEDs Shine Bright in the Infrared ICFO researchers report on the development of a colloidal quantum-dot light emitting diode with unprecedented quantum and power conversion efficiencies in the infrared range. The ideal optoelectronic semiconductor material should be a strong light emitter i.e. should emit light very efficiently upon optical excitation as well as be an efficient charge conductor to allow for electrical injection in devices. These two conditions when met can lead to highly efficient light emitting diodes as well as to solar cells with the possibility to approach the Shockley-Queisser limit. Until now the materials that have come close to meeting these conditions have been based on epitaxially-grown costly III-V semiconductors that cannot be monolithically integrated to CMOS electronics. Read more »

Resources | LpR Article | Technologies | Horticulture | UV | Dec 01, 2018

UV LED Technology for Emerging Applications in Agriculture

UV LED Technology for Emerging Applications in Agriculture The Ultraviolet (UV) LED market has expanded five-fold in the past decade and is projected to grow to over $1 billion by 2025. A key trend expected to influence the market is the ability to expand into new applications, including agriculture. UV light, at proper frequency and dose, can increase the production of active substances in medicinal and traditional plants and it can also help maintain a healthy growing environment. But to fully take advantage of UV LEDs, some major re-design considerations are required. Terrance Berland, CEO of the Violet Defense Group, the parent company of Violet Gro, will explain which considerations these are; for instance, why it is crucial to incorporate the appropriate lens material. Read more »

Technologies | Research | LEDs | Perovskite | Light Generation | Nov 22, 2018

Researchers Push Perovskite LEDs' Efficiency To Rivaling Best OLEDs

Researchers Push Perovskite LEDs' Efficiency To Rivaling Best OLEDs Compared to OLEDs, which are widely used in high-end consumer electronics, the perovskite-based LEDs, developed by researchers at the University of Cambridge, can be made at much lower costs, and can be tuned to emit light across the visible and near-infrared spectra with high colour purity. Now, researchers have set a new efficiency record for LEDs based on perovskite semiconductors, rivalling that of the best Organic LEDs (OLEDs). Read more »

Technologies | Research | LEDs | Light Conversion | Machine Learning | Oct 23, 2018

New Algorithm Can More Quickly Predict Phosphor Materials for LEDs

New Algorithm Can More Quickly Predict Phosphor Materials for LEDs Jakoah Brgoch, assistant professor of chemistry at the University of Houston, and members of his lab published a paper on Oct. 22 in Nature Communications describing how machine learning speeds discovery of new materials. By scanning a huge number of compounds for their key attributes they were looking for a new light conversion material that could be used in white LEDs. Read more »

Resources | LpR Article | Technologies | Optics | Nano-Optics | Oct 22, 2018

LED Lighting Requires New Approaches in Optics

LED Lighting Requires New Approaches in Optics LpR 67 Article, page 88: Even though LED technology has been established LEDs still need new approaches in electronics, thermal management or optics to make complete use of their advantages. Marek Škereň, Chief Technology Officer of IQ Structures, explains how new optical devices, with the trade name Nanoptiqs, based on principles of diffraction are applied to achieve improved performance of white light illumination systems. This unique solution is based on full control over the modulation of material and geometric properties of the optical elements at a nano-level. A combination of complex transmission diffractive elements, with specially designed systems of micro-reflectors (produced using an innovative mass-production technique) is also presented as a promising flexible building unit for the construction of new generation luminaires. Read more »

Technologies | Research | LEDs | Light Generation | Light Conversion | Oct 11, 2018

Spanish Researchers Develop Sand that Produces White Sun-Like LEDs

Spanish Researchers Develop Sand that Produces White Sun-Like LEDs The team led by the chemist-technologist Rubén Costa of IMDEA Materials (Madrid) and the chemists Jesús Berenguer of the University of La Rioja and Javier García of the University of Alicante has overcome one of the biggest obstacles in the progress towards new sources of healthier artificial lighting. Read more »

Technologies | LEDs | RGB LEDs | Controls | Driver IC | Oct 09, 2018

Dynamic In-Car Lighting Scenarios - Osram's Osire E4633i Prototype with Inova's Serial Control Driver

Dynamic In-Car Lighting Scenarios - Osram's Osire E4633i Prototype with Inova's Serial Control Driver The more autonomous a car becomes, the more the way in which it is used will change. As developments continue toward autonomous driving, more and more attention is being focused on the passenger cell. Light will become an integral part of the passenger cell, taking on functional and design-specific tasks. Previously static light, which could only be switched on and off, has now been given a dynamic dimension with the prototype of the Osire E4633i – with countless design options for car manufacturer. Read more »

Technologies | Light Generation | OLEDs | Special Applications | Displays | Aug 07, 2018

Electron Beam Patterning for Full-Color HR OLED Displays

Electron Beam Patterning for Full-Color HR OLED Displays OLED microdisplays are increasingly establishing themselves in consumer-ready wearables and data glasses. In order to meet the requirements for higher efficiency, higher contrast, and higher resolutions in these applications, Fraunhofer FEP scientists have developed a new micropatterning approach for OLEDs on silicon substrates. This might eliminate the use of color filters and shadow masks in the future and allow full-color displays to be developed by means of a new process. An increase in efficiency and considerably broader color gamut have already been demonstrated in first experiments. Read more »

Technologies | Research | LEDs | Quantum Dots | Light Conversion | Jul 19, 2018

Liquid-Suspended White QD LEDs Achieve Luminous Efficacy Record

Liquid-Suspended White QD LEDs Achieve Luminous Efficacy Record Quantum dot (QD) white LEDs that show a luminous efficacy of 105 lm/W have been developed. The QDs are liquid-based and, according to researchers, could help the LEDs achieve an efficacy double that of LEDs that incorporate quantum dots in solid films. With further development, researchers say the new LEDs could reach an efficacy over 200 lm/W. Read more »

Technologies | Research Reports | LEDs | Manufacturing | Jul 12, 2018

InteGreat Project Successfully Researched New Approaches to LED Production

InteGreat Project Successfully Researched New Approaches to LED Production In the InteGreat research project, Osram Opto Semiconductors coordinated a consortium comprising seven partners from science and industry. Between December 2014 and February 2018 the project partners investigated time-honored manufacturing approaches and know-how along the entire LED production process with the aim of identifying potential areas for optimization. The new insights allow for LED products to be given additional superior properties that would have been difficult or even impossible to achieve with the technologies previously used to produce LEDs. Read more »

Technologies | Research News | Thermal Management | Jul 09, 2018

Intended for High-Performance Computer Chips - Maybe Also Useful for LEDs

Intended for High-Performance Computer Chips - Maybe Also Useful for LEDs The inner workings of high-power electronic devices must remain cool to operate reliably. High internal temperatures can make programs run slower, freeze or shut down. Researchers at the University of Illinois at Urbana-Champaign and The University of Texas, Dallas have collaborated to optimize the crystal-growing process of boron arsenide – a material that has excellent thermal properties and can effectively dissipate the heat generated in electronic devices. Read more »

Technologies | LEDs | Micro-LEDs | Light Generation | Special Applications | Displays | Jun 19, 2018

KAIST Team Develops Flexible Blue Vertical Micro LEDs

KAIST Team Develops Flexible Blue Vertical Micro LEDs In CES 2018, micro LED TV was spotlighted as a strong candidate for replacing the active-matrix organic light-emitting diode (AMOLED) display. Micro LED is a sub-100 um light source for red, green and blue light, which has advantages of outstanding optical output, ultra-low power consumption, fast response speed, and excellent flexibility. Professor Keon Jae Lee from the Department of Materials Science and Engineering and his team have developed a low cost production technology for thin-film blue flexible vertical micro LEDs (f-VLEDs). Read more »

Resources | LpR Article | Technologies | Applications | May 02, 2018

Multi-Pixel LED Technology Opens New Horizons for Smart Lighting Applications

Multi-Pixel LED Technology Opens New Horizons for Smart Lighting Applications The evolution of Multi-Pixel LED technology has initiated a giant leap in the development of intelligent lighting systems which are most visible in the automotive industry. Now the first hybrid LED provides smart headlights with more than 1000 individually controllable pixels. Ralph Bertram, who is working on advanced LED device concepts, and Norbert Harendt, who is developing optics solutions for general lighting at Osram Opto Semiconductors, show that automotive lighting is just one of the potential areas in which intelligent selective pixel control can be applied. Options for the use in general lighting, such as information display for outdoor, indoor, retail or industrial applications, are very versatile. Read more »

Technologies | OLEDs | Displays | Manufacturing | Special Applications | Apr 16, 2018

Smart Printing: Fraunhofer IAP Develops Power Generating Films and Luminescent Glass

Smart Printing: Fraunhofer IAP Develops Power Generating Films and Luminescent Glass New inks for inkjet printers make it possible to print organic displays or solar cells on film and glass for the use in architecture, the textile industry and many other industries. Read more »

Technologies | Light Generation | LEDs | Color LEDs | Mar 29, 2018

Scientists Reveal the Fundamental Limitation of In Concentration in InGaN Solid-State Devices

Scientists Reveal the Fundamental Limitation of In Concentration in InGaN Solid-State Devices For the first time an international research group has revealed the core mechanism that limits the indium (In) content in indium gallium nitride ((In, Ga)N) thin films - the key material for blue light emitting diodes (LED). Increasing the In content in InGaN quantum wells is the common approach to shift the emission of III-Nitride based LEDs towards the green and, in particular, red part of the optical spectrum, necessary for the modern RGB devices. The new findings answer the long-standing research question: why does this classical approach fail, when we try to obtain efficient InGaN-based green and red LEDs? Read more »

Resources | LpR Article | Technologies | Light Generation | Tunable White Light | Feb 28, 2018

A New Technology Is Changing the Tunable White Solutions

A New Technology Is Changing the Tunable White Solutions Tunable white LEDs are one key element of human centric lighting. Until today, different solutions are currently available but none of them is easy to apply or cost effective enough to speed up the diffusion of human centric lights in building projects. A new approach for tunable white solutions is able to provide flexible lighting for multiple occasions without sacrificing output or going over project budget. Phil Lee, Senior Lighting Engineer from Meteor Lighting will compare this new technology, called ColorFlip™, to conventional tunable white solutions, and talk about current tunable white issues. Read more »

Technologies | Light Conversion | LEDs | Quantum Dots | Feb 26, 2018

Realizing Highly Efficient QD LEDs with Metallic Nanostructures at Low Cost

Realizing Highly Efficient QD LEDs with Metallic Nanostructures at Low Cost The Korea Advanced Institute of Science and Technology (KAIST) announced that a team of their researchers have discovered a technology that enhances the efficiency of Quantum Dot LEDs. Professor Yong-Hoon Cho from the Department of Physics and his team succeeded in improving the efficiency of Quantum Dot (QD) Light-Emitting Diodes (LEDs) by designing metallic nanostructure substrates. Read more »

Technologies | Optics | Manufacturing | Displays | Feb 23, 2018

VTT and Neonelektro Have Made LED Advertising Boards Light, Flexible and Energy-Efficient

VTT and Neonelektro Have Made LED Advertising Boards Light, Flexible and Energy-Efficient Through a European project, VTT Technical Research Centre of Finland and Neonelektro have developed new types of LED displays that combine the flexibility, low cost and high technical performance enabled by roll-to-roll mass manufacturing technology. Read more »

Technologies | Light Generation | Phosphors | Feb 22, 2018

Supercomputers Aid Discovery of New, Inexpensive Material to Make LEDs with Excellent Color Quality

Supercomputers Aid Discovery of New, Inexpensive Material to Make LEDs with Excellent Color Quality A team led by engineers at the University of California San Diego has used data mining and computational tools to discover a new phosphor material for white LEDs that is inexpensive and easy to make. Researchers built prototype white LED light bulbs using the new phosphor. The prototypes exhibited better color quality than many commercial LEDs currently on the market. Read more »

Resources | IP Snapshot | Technologies | Feb 16, 2018

100 Years Lighting IP Applications

IPC Class F21: Lighting These IP Snapshots show approximately 100 years of patent applications of the IPC class F21 lighting and the IPC class H05 electric techniques. Both IPC classes are the most relevant in the lighting domain. Annually, over 60,000 applications are filed globally and an increasing number of IP applications is predicted over the next few years. Lighting, in general, and the electronics are, therefore, quite similar in numbers. Read more »

Technologies | Smart Lighting & IoT | Feb 06, 2018

Fraunhofer IIS IoT-Bus: The Secure Communication Bus - Not Just for Lighting

Fraunhofer IIS IoT-Bus: The Secure Communication Bus - Not Just for Lighting The Fraunhofer Institute for Integrated Circuits IIS is developing the IoT-Bus with IPv6 support and integrated security concept. It is a communication bus based on EIA/RS-485 and the IEEE 802.15.4 standard, which enables a secure and reliable data transmission of measured values and control commands and connectivity to the Internet of Things. The IoT-Bus forms a cross-media communication protocol and unites the two worlds of WPAN and fieldbuses without complex protocol conversion. The novel technology IoT-Bus is developed as part of the SEEDs project. Read more »

Resources | LpR Article | Technologies | LiFi | Jan 15, 2018

LiFi - What It Is, How It Works, What It Provides, How to Apply, and Its Future Prospects

LiFi - What It Is, How It Works, What It Provides, How to Apply, and Its Future Prospects The acronym LiFi (Light Fidelity) was born at the beginning of the 2010s. Its name derives from the very well-known WiFi (Wireless Fidelity). The term VLC (Visible Light Communication) is used in the restricted instances of visible light. Mr. Luc Chassage who works for Oledcomm and the Versailles University is also Scientific Committee President of the Global LiFi Congress that offers 20 lectures dealing with all aspects of LiFi. He is a profound expert in this technology field. Mr. Chassage explains the functionality, pitfalls and hurdles to overcome, the disadvantages and advantages, and best practice to apply LiFi. Read more »

FEATURED

EzyLED™ Reduces Circuit Driver Complexity

EzyLED™ Reduces Circuit Driver Complexity American Bright, a global LED lighting solutions manufacturer, announced a series of EzyLED 3030. American Bright's EzyLED™ is a proprietary LED device with a built-in IC. This patented design drastically reduces the need for additional circuitry and other on-board components making it the ideal ... Read more »

FEATURED

On-the-Fly Light Measurement of Modulated LEDs with DSP 200

On-the-Fly Light Measurement of Modulated LEDs with DSP 200 Instrument Systems addresses increasing demands on light measurement technology in the automotive sector: the goniophotometer AMS 5000 combined with the DSP 200 photometer offers a perfect solution for testing modulated LEDs, which today ensure a driving experience under optimum lighting conditions. Read more »

FEATURED

Lumileds Introduces Brightest, Most Reliable RGB LED Module

Lumileds Introduces Brightest, Most Reliable RGB LED Module Leading in luminous intensity and reliability, Lumileds' new LUXEON MultiColor Module 0.5 W is the ideal building block for applications demanding consistent, brilliant color. Read more »

EDITORIAL

High Conductive Foils Enabling Large Area Lighting

High Conductive Foils Enabling Large Area Lighting Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP as one of the leading partners for research and development for surface technologies and organic electronics and Sefar AG, a leading manufacturer of precision fabrics from monofilaments, developed a roll-to-roll ... Read more »

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