Trends & Technology Collection

Resources | Reports | Human Centric Lighting | Feb 27, 2018

New LRC Study Tests the Impact of Circadian Light on Alertness in Office Workers

In 2017 the Lighting Research Center (LRC) at Rensselaer Polytechnic Institute published a groundbreaking study showing that office workers who receive a robust dose of circadian-effective light experience better sleep, and lower levels of depression and stress, than those who spend their days in dim or low light levels. The team of LRC researchers, led by Dr. Mariana Figueiro and sponsored by the U.S. General Services Administration, measured existing light levels for 109 participants at five federal office buildings designed to maximize daylight availability indoors. The research team found that even in open offices with many, large windows, office workers were not receiving enough light to stimulate their circadian system during the day, due to factors such as season, cloud cover, desk orientation, and window shade position. Read more »

Feb 26, 2018

LpR66_Full_170972.pdf

Tech-Talks Bregenz: Fred Maxik Research: Lifetime Simulation & Optimization Technologies: LED Overvoltage, LED Drivers Application: Thermal Management COMMENTARY On Smart Luminaires by Prof. Tran Quoc Khanh, Technical University Darmstadt (p 08) TECH-TALKS BREGENZ Fred Maxik, Founder & CTO, Lighting Science Group compiled by Dr. Guenther Sejkora, LED professional (p 34) RESEARCH Lifetime- and Economic Efficiency Simulation of LED Luminaires in Dymola/Modelica by S. Haemmerle & T. Schmitt, University of Applied Sciences Vorarlberg (p 40) Full-Color InGaN/AlGaN Nanowire LEDs for SSL and Displays by M. R. Philip & Dr. H. P. Nguyen, New Jersey Institute of Technology (p 50) EVENTS Technology Is the Answer, But What Was the Question? by Arno Grabher-Meyer, LED professional (p 56) TECHNOLOGIES A Near Infrared Enhanced LED Lighting Approach by Scott Zimmerman, Silas (p 62) ENGINEERING Electrical Over Stress - How to Prevent an LED Failing Earlier than Expected by Mauro Ceresa, Cree (p 70) Method and Circuit to Maintain Constant Light Output for LED Luminaires by Prof.Dr.Eng. Stelian Matei, Electromagnetica (p 80) Read more »

Feb 26, 2018

LpR66_503320.pdf

Measurement Seminar – from SSL to Displays

For the third consecutive year, Instrument Systems invited engineers from all industries that deal with light measurement of SSL products and different kinds of displays to their seminar. LED professional’s Editor in Chief, Arno Grabher-Meyer, was also pleased to receive (and accept) an invitation. In this article he shows what attendees can expect, who might find this event of interest, who would benefit the most and who should definitely not miss the next opportunity to attend. Read more »

Phosphors & QDs LED Downconverters Report for Lighting & Displays from Yole Développement

“Volume saturation, price pressure and a shifting intellectual property landscape are forcing the LED phosphor & QDs industry into a rationalization phase,” announces Dr. Eric Virey, Senior Technology & Market Analyst, Yole Développement (Yole). Read more »

Event Post Show Report | Nov 13, 2017

Guangzhou International Lighting Exhibition 2017 Welcomes Record Number of Over 156,000 Global Visitors

The fair remains true to its mission of promoting global dialogue and exploring the convergent future. Visitors celebrate the fair as an effective sourcing and networking platform. Kicking off on 9 June, the 22nd edition of the Guangzhou International Lighting Exhibition (GILE) welcomed visitors for the four-day fair during which key industry players had the chance to explore the convergent future of the lighting industry. Read more »

Business | Company News | Partnerships | Nov 12, 2017

Osram and Continental Planning Joint Venture for Intelligent Lighting Solutions in the Automotive Sector

Technology companies Osram and Continental today announced their intention to establish a joint venture. The idea is to combine innovative lighting technology with electronics and software to develop, manufacture and market intelligent lighting solutions for the automotive industry. The global joint venture will operate under the name Osram Continental GmbH and have its registered office in the Munich region. Osram and Continental will each have a 50 percent stake in the joint venture. The aim is to generate annual sales in the mid-triple-digit-million-euro range with a workforce of around 1,500 employees and 17 locations worldwide. Dirk Linzmeier (CEO) from Osram and Harald Renner (CFO) from Continental have been named as designated managing directors. The joint venture is scheduled to start in 2018 subject to final agreement on the binding contracts and antitrust approvals. Read more »

LpS Gets a Younger Sibling to Foster a Holistic System Approach

For the most part our readers are aware of the fact that the LpS has a strong focus on the component level, but after the 6th event, the Luger Research team realized that it was time to find a way to push the more holistic system approach. After much consideration and careful planning, the Trends in Lighting (TiL) Forum and Show was initiated and took place in conjunction with the LpS 2017. Arno Grabher-Meyer, Editor-in-Chief at LED professional took a close look at both exhibitions and the lectures to find out what the audience thought of the extension and broader outlook. Read more »

Oct 31, 2017

LpR64_393105.pdf

TTB: Dr. Ken T. Shimizu Research: Hybrid Quantum Dot LECs Environment & Quality: Energy Saving & Glare Events: LpS Post Show Report COMMENTARY The Value Of High-End Labs for High Quality Lighting by Klaus Ludwig, Osram (p 08) TECH-TALKS BREGENZ Ken T. Shimizu, Research & Development Director at Lumileds compiled by Arno Grabher-Meyer, LED professional (p 34) RESEARCH Hybrid Quantum Dot Light Emitting Electrochemical Cells by Dr. Ekaterina Nannen et al., Nano-Energie-Technik-Zentrum (NETZ) / Uni DuE (p 40) Thermal Issues Posed by Compact Packaging and IoT for Next Generation SSL by Mehmet Arik & Umut Zeynep Uras, EVATEG / Ozyegin University (p 44) EVENTS LpS Gets a Younger Sibling to Foster a Holistic System Approach by Arno Grabher-Meyer, LED professional (p 52) TECHNOLOGIES LiFi - What It Is, How It Works, What It Provides, How to Apply, and Its Future Prospects by Luc Chassage, Oledcomm & Versailles University (p 66) A New Technology Is Changing the Tunable White Solutions by Phil Lee, Meteor Lighting (p 70) QUALITY Glare Reduction Made Easy by Dr. Claudius Noack, NORKA Leuchten (p 74) ENVIRONMENT A World of LED Lights - The Cost of Waiting by Benoit Bataillou, Pi Lighting (p 78) Read more »

Oct 31, 2017

LpR64_Full_181430.pdf

Horticulture | Sensors | Systems | Luminaires | Oct 23, 2017

LumiGrow Launches New Smart Light Sensor to Have the Sun Manage Your Greenhouse Lighting

LumiGrow, a smart horticultural lighting company, announced today the release of their integrated light sensor technology, named the smartPAR Light Sensor Module. Now greenhouse growers can ensure their crops experience near perfect lighting conditions year-round, regardless of changes in season, climate, or inefficiencies in greenhouse infrastructure. The sensor technology works by simply plugging into your LumiGrow Pro Series or Pro Series E fixtures, then connects to your smartPAR Wireless Control System to begin automating your lighting strategy. Once connected, the smartPAR Light Sensor Module measures ambient sunlight within the greenhouse, and adjusts your LumiGrow lighting to hit your crop’s ideal daily light integral (DLI) goals day in and day out. Read more »

Resources | LpR Article | Research | Medical | Sep 12, 2017

Challenges when Designing LED-Based Illumination Systems in Medical Applications and Diagnostics

LEDs have become indispensable in medical technology and dentistry. But the requirements placed on these lighting products are very high: Minimized size, high, application specific color rendering index, efficient temperature management, usability and excellent disinfection opportunities are all extremely important. Prof. Paola Belloni from the Steinbeis Transfer Center Illumination Optics and Lighting Engineering and Furtwangen University, and Alexander Gärtner from the Faculty of Mechanical and Medical Engineering of the Furtwangen University discuss the requirements for different applications such as endoscopy, surgeries, dental devices, and photodynamic therapy. Further topics are the development of a self-disinfecting operation interface with edge-lit UV-A LEDs, and a new optimization approach, taking into account the reflection and absorption properties of human tissues. Read more »

Yole Développement Releases QD & Wide Color Gamut Display Technologies Report

“As TV makers struggle to trigger replacement cycles, WCG and HDR and their notable picture quality improvements are the next growth drivers for the TV industry,” announces Eric Virey, Senior Market & Technology Analyst, LED, Sapphire & Displays at Yole Développement (Yole). Read more »

Aug 31, 2017

LpR63_891175.pdf

TTB: Dr. Wilfried Pohl Research: Spectral Rayfiles & Medical Applications Characterization & Quality: UV & Shop Lighting Technologies: Laser & Quantum Dots COMMENTARY Brave New World and the New Dualism of Light(ing) by Arno Grabher-Meyer, LED professional (p 08) TECH-TALKS BREGENZ Dr. Wilfried Pohl, Director of Research at Bartenbach GmbH compiled by Dr. Guenther Sejkora, LED professional (p 38) RESEARCH Measurement of Angular and Spatial Resolved Spectral Rayfiles by I. Rotscholl et al., Karlsruhe Institute of Technology (p 48) Challenges when Designing LED-Based Illumination Systems in Medical Applications and Diagnostics by Prof. Paola Belloni & Alexander Gärtner, Furtwangen University (p 58) TECHNOLOGIES Intelligent Lighting Designs Enabled by Laser Light by J. A. Carey & Dr. Paul Rudy, Soraa Lasers (p 66) Quantum Dot Based White LEDs for General Illumination by Ken T. Shimizu et al., Lumileds (p 72) CHARACTERIZATION Challenges in UV Measurement by Dr. Tobias Roesener, Instrument Systems (p 80) QUALITY Lighting to Achieve Optimal Appearance by Markus Reisinger, Lighting Research Studio (p 88) TRENDS Trends in Horticulture Lighting - Interview with Paul Scheidt compiled by Siegfried Luger & Bronwen Rolls, LED professional (p 92) Read more »

Resources | Intellectual Properties | Reports | GaN-on-Si | Apr 29, 2017

GaN-on-Silicon Substrate Patent Investigation - Knowmade & Yole See More Players on the Playground

GaN-on-Si technology appeared naturally as an alternative to GaN-on-Sapphire—the main stream technology for LED applications. Today, despite potential cost benefits, the mass adoption of GaN-on-Si technology for LED applications remains unclear. Most major LED makers have a patenting activity related to GaN-on-Si technology, but so far, few have made it the core of their strategy and technology roadmap. Contrary to the LED industry, we expect GaN-on-Si to be widely adopted by Power Electronics and RF applications because of its lower cost and CMOS compatibility. Read more »

Resources | Intellectual Properties | Reports | Light Conversion | Apr 29, 2017

Effects of Expiring Phosphors and QD IP on the LED Applications Patent Landscape

The latest Yoel report on will especially concentrate on the question how IP forces will evolve, with fundamental patent expiring in the next years? The report provides a detailed picture of the patent landscape for LED downconverters, namely Phosphors & Quantum Dots (QD). It covers patents published worldwide up to September 2015. More than 7,510 patent families relevant to the scope of this report have been selected. Read more »

Yole Releases New Nanowire LED IP Study - Startups Compete with Asian LED Giants in the IP Landscape

Asian giants Samsung, Panasonic and LG are the top three patent assignees for Nanowire LED technology. Facing them are several startups including glo, Aledia and Ecospark, which between them have raised more than $150M - thus confirming their serious interest in this field. However, these newcomers face strong technological challenges. Read more »

Standardization + Regulation | News-Spot | Apr 29, 2017

New Consortium to Drive Standardization of a Management Software Interface for Managing Outdoor Lighting Networks

Global initiative – The formation of a new global consortium made up from lighting industry players, with the aim of creating a globally accepted standard for a management software interface for outdoor lighting networks has been announced today. Named TALQ, the founders/participants are Harvard Engineering, Kingsun, Philips, Schréder, Streetlight.Vision and Zumtobel Group. Read more »

Trends | Smart Lighting + IoT | Resources | LpR Article | Nov 28, 2016

Smart Lighting Market and Technology Trends

Intelligent lighting technology that enables its users to control lighting through connected devices such as smart phones or remote controls is a big topic in the industry. A new report sheds light on different aspects of this business including drivers, restraints and opportunities. Jasmine Hinduja, Research Analyst at The Insight Partners, summarizes the major findings and how the trend to intelligent systems affects the companies regarding technology skills and strategies. Read more »

Event Post Show Report | LpR Article | Nov 28, 2016

LpS Event: A Perfect Platform for New Ideas and Innovations

Like in any “Light + Building year”, there is always the question of which, if any, other shows one should attend in Europe. The visitors to the LpS 2016 knew right from the start that they had made the right decision with Bregenz. As always, the show attracted attendees, exhibitors and visitors from all over the world. Arno Grabher-Meyer, Editor-in-Chief at LED professional summarizes the highlights and shows how the newly introduced program points were received. Read more »

Tech-Talks Bregenz | Nov 24, 2016

Tech-Talks BREGENZ - Prof. Christian Cajochen, Univ. Basel, Head of Center of Chronobiology

Human Centric Lighting has become a catchphrase used by industry and the press. But the press has also started reporting that research emphasizes the danger of LED lighting in connection to our health and has coined the term “Blue Light Hazard”. These claims have caused confusion amongst end users and throughout the lighting community. Prof. Christian Cajochen, Head of the Centre for Chronobiology at the University of Basel - an expert on this topic - held a lecture at the LpS 2016 entitled “Light Beyond Vision”. Afterwards, LED professional seized the opportunity to talk to him personally and get some in-depth information about the risks and benefits of LED lighting. Read more »

LpR Article | Aug 11, 2016

LED Lamps Recycling Technology for a Circular Economy

While having a long propagated lifetime, LED lighting products, especially lamps, have a foreseeable end of life. And since they contain many valuable elements they practically beg to be recycled. However, like other highly integrated electronics products recycling is not a simple task. Andrea Gassmann, Jörg Zimmermann, Roland Gauß, Rudolf Stauber and Oliver Gutfleisch from the Fraunhofer Project Group Materials Recycling and Resource Strategies IWKS and the Technische Universität Darmstadt Institute for Materials Science respectively, present and discuss a method that could open the way to successful recirculation of precious components and materials. Read more »

LpR Article | Jul 04, 2016

Human-Centric Lighting: Sensor Technology for Full- Spectrum Lighting Solutions by ams

While not necessarily common knowledge, research is rapidly validating the common-sense understanding that human beings are “tuned” to the natural lighting cycles of the sun, and can be equally “de-tuned”, to the detriment of both health and productivity, by artificial light sources that operate contrary to these natural flows. Sajol Ghoshal, Director of Sensor Driven Lighting at the Opto Sensor and Lighting BU at ams, discusses the available approaches for full-spectrum solutions, and potential humancentric benefits, of fully integrated intelligent ambient/color light sensor and driver technology. Read more »

LpR Article | Jun 20, 2016

Lighting & Building Automation Technologies

The transition from traditional lighting technology to LED is old news. People in the lighting business no longer talk about the “LED Revolution”. Today’s revolution, perhaps spurred on by LED technology, is in building automation and lighting controls. Lighting experts know that while LED products have the potential to achieve terawatts of power savings worldwide over the next decade, even larger power savings might be achieved through effective lighting control and building automation systems. Greg Galluccio, Director at Leviton Manufacturing discusses lighting load-shedding strategies, such as daylight harvesting, occupancy sensing, task management and demand response as well as the trends towards the interaction of lighting control with other building functions. Read more »

Resources | LpR Article | Event-Reports | Trends | May 30, 2016

Light + Building Post Show Report: The Six Most Noteworthy Observations by LED professional

In the weeks and months before the show it was obvious that the major topics were going to be IoT and connectivity. There are many reasons for this. One is that LED lighting has become established but the big deals for smart lighting and human centric lighting are missing. IoT seems to be the way to improve communication and enable both smart lighting and HCL. Arno Grabher-Meyer from LED professional gives a summary of his impressions of the fair in regards to these topics, and beyond. Read more »

LpR Article | May 11, 2016

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 of euroLighting presents a recently improved new concept to significantly reduce flicker. Read more »

LpR Article | May 06, 2016

Lighting with LEDs – More than just Illuminating Objects, by Bartenbach Lichtlabor

Light is more than just vision. It includes aspects of well-being, health and emotions. Dr. Wilfried Pohl, Markus Canazei and Christian Knoflach from Bartenbach report on their experiences and discuss the requirements for LED lighting. They also write about physiological effects and make recommendations for improvements. Read more »

Tech-Talks Bregenz | Apr 14, 2016

Tech-Talks BREGENZ - Karl Jónsson, IoT Architect, Tridonic

Karl Jónsson, IoT Architect at Tridonic presented some interesting facts, figures, and ideas about IoT and the future of lighting in his speeches about “The Internet of Things and Lighting” at Zumtobel’s International Year of Light Event in 2015 and again at the Light + Building 2016 preview. LED professional got the chance to talk with him about his visions for IoT and Tridonic’s latest developments in that domain. Read more »

Event News | Feb 16, 2016

Trending Advancements at Guangzhou International Lighting Exhibition 2016 Reveal Lighting Solutions in a New Dimension

Over 70% of booths reserved for 21st edition, leading brands to demonstrate innovative technologies. From 9 – 12 June 2016 at the China Import and Export Fair Complex, the global lighting community will converge and attempt to unveil the industry’s next game-changing breakthrough. Read more »

IP, Reports & Roadmaps | Jan 07, 2016