Trends & Technology Collection

Implications for Human-Centric Lighting Design in Tropical Nursing Homes: A Pilot Study

Light synchronizes our physiological and psychological rhythms to the 24-hour rhythm of the ambient changes. For the elderly, adequate environments to compensate for increasing frailty and sensory loss are crucial. Dr. Szu-Cheng Chien, Assistant Professor at the Singapore Institute of Technology reports from a pilot study that aimed to explore HCL design strategies in nursing homes in Singapore. Pre-/post implementation user surveys and quantitative evaluations were conducted. Read more »

User Evaluation of the OpenAIS Pilot Installation

The OpenAIS project (2015-2018) has developed an open IoT lighting solution to enable a wider community to deliver the smartness of light, allowing easy adaptability to cater for the diversity of people and demands. The project is a cooperation between seven leading companies in the European industry and two academic partners: Signify, Zumtobel, Tridonic, Johnson Controls, Dynniq Belgium, NXP, ARM, Eindhoven University of Technology. Thomas van de Werff, Harm van Essen and Berry Eggen from the Eindhoven University of Technology describe the evaluation results of the pilot installation in a real office building in Eindhoven (The Netherlands), a former Philips factory. Read more »

Resources | Standardization | CIE | Health | Mar 28, 2019

CIE Considers the "Good and Bad" of Light

Light, and the wider optical radiation spectrum (ultraviolet and infrared radiation), provides us with many benefits. However, too much may be harmful and too little may mean we cannot carry out our daily activities, or may indeed compromise our well-being. Division 6 of CIE, Photobiology and Photochemistry, is responsible for developing action spectra for the effects of optical radiation on people, as well as flora and fauna. John O'Hagan, Luke Price and Luc Schlangen, respectively, Division 6 director, Division 6 secretary and chair of the Joint Technical Committee (JTC) 9, explain the work done to determine the balance between risk and benefit from exposure to optical radiation. Read more »

Resources | LpR Article | Research | Environment | Mar 26, 2019

When Nights Are No Longer Dark: Effects of Artificial Light at Night on Agroecosystems

In recent decades, artificial lighting has become an integral part of the modern world. While the use of artificial light at night (ALAN) greatly benefits people, it often has unintended, negative consequences for wildlife and ecosystems. In particular, the increasing use of LED lighting raises ecological concerns due to its high content of blue light, to which many organisms are sensitive. Dr. Maja Grubisic, Researcher at the Leibniz-Institute and Guest Lecturer at Free University Berlin discusses how ALAN can directly and indirectly influence agroecosystems, with potential consequences for food production and biodiversity. Given the current lack of integrative studies on this important topic, the better understanding of effects of ALAN in agroecosystems is urgently needed. Read more »

Lighting and Emergency Dept. Clinician Wellness and Performance Improvement

LpR 70 Article, page 38: Short wavelength ("blue") light is known for its strong impact on humans covering "visual" function, wellness and performance of humans. Lighting has been recognized to have an effect on clinician wellness and performance as well as the occurence of medical errors. In a pilot study, Octavio L. Perez, Ph.D, WELL Accredited Professional and Adjunct Researcher at the Department of Population Health Science and Policy, and his team of scientists and physicians, Christopher Strother, Richard Vincent, Barbara Rabin and Harold S. Kaplan, from the Mount Sinai Hospital, New York, systematically investigated if and how a radically new lighting concept could improve wellness and performance in an emergency department. Read more »

Health + Environment | Outdoor Applications | Resources | Tech-Talks Bregenz | Mar 25, 2019

Tech-Talks BREGENZ - Dr. Maja Grubisic, Researcher, Free University Berlin & Leibniz-Institute

Awareness of the ecological impact of technologies is becoming more important since climate change due to industrialization cannot be denied. LED lighting is one of the technologies that is deemed as a contributor in helping to reduce the impact caused by wasted energy. Unfortunately, light pollution, due to inefficient energy usage, is not the only problem. Besides the more recognized pollution from pesticides and chemical pollutants, light pollution also disturbs ecology and wildlife. Dr. Grubisic, Researcher at the Free University Berlin & Leibniz-Institute, has been working on this problem for more than five years now. She has written an article, also in this issue, concerning this. At the LED professional Symposium she was also good enough to grant this interview, providing some background information, explaining why light pollution is such an issue in biology and why this topic should be of concern to all of us. Read more »

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 »

Research Reports | Smart Lighting + IoT | Resources | LpR Article | Oct 19, 2018

Challenges of the Integration of Lighting Systems and Components in IoT

LpR 68 Article, page 50: Following the rapid penetration of LEDs, lighting is now becoming integrated into the Internet of Things. Over the past three years a consortium of leading European companies worked on the OpenAIS project, which was partly funded by the EU within the Horizon 2020 program, and now showing the results working at a full size demonstrator. In this follow up article to the introduction article of LpR 67, Ben Pronk, System Architect at Signify, and Stefan Verbrugh, Project Manager at Signify and Work Package leader in OpenAIS give deeper insight into the project. They explain the lighting specific challenges, describe the generic challenges for IP controlled lighting and present the approach to these challenges. They conclude by summarizing the findings from the pilot. Read more »

Aug 31, 2018

LpR69_Full_003272.pdf

Tech-Talks Bregenz: Guido van Tartwijk Research: Micro-Optics & Medical Devices Engineering & Technology: Data, Optics, IoT & Cooling Events: LpS & TiL Planning and Program COMMENTARY A New Lighting Scene by Rogier van der Heide, Curator of Trends in Lighting 2018 (p 08) EVENTS Planning Your LpS 2018 Is Easy with Our Simple Program Chart and Event App by Bronwen Rolls, Trends in Lighting (p 34) LpS&TiL 2018 EVENT PROGRAM (p 36) ORGANIZATION SPECIALS Zhaga Enables Mechanical IoT-Upgradability for Outdoor LED Lighting Fixtures by Dee Denteneer, Zhaga (p 42) Evaluating Performance of LED based Luminaires by Various Experts from LightingEurope (p 48) TECH-TALKS BREGENZ Guido van Tartwijk, CEO of Tridonic compiled by Guenther Sejkora, LED professional (p 56) RESEARCH Smart Design of Freeform Micro-Optical Elements for Thin Direct-Lit Luminaires by Christian Sommer et al., Joanneum Research Forschungsgesellschaft (p 64) Optical Designs to Improve LED Lighting Efficiency of Medical Endoscopes by Alexander Gaertner & Paola Belloni, University Furtwangen (p 70) ENGINEERING Rethinking the Photometric Data File Format by P. Eng. (Ret ) Ian Ashdown, SunTracker Technologies (p 76) Additive Optics Design and Fabrication for Smart Lighting Systems and Tailored Project Solutions by Marco de Visser et al., Luximprint & Physionary (p 82) TECHNOLOGY Qualified Bluetooth Mesh – Making Lighting Controls Future-Proof by Patrick Durand, Future Lighting Solutions (p 88) Materials, Manufacturing and Technologies for Designing Passive Cooling Devices by John Broadbent, Columbia-Staver (p 94) APPLICATIONS Interactive Lighting Control is Opening New Doors for LED Application by Manjinder Benning, Limbic Media (p 98) TRENDS Approaching the Spectrum of the Sun by Marc Juarez, Seoul Semiconductor (p 104) Read more »

Aug 31, 2018

LpR69_813345.pdf

Jul 09, 2018

LpR68_Full_334412.pdf

COMMENTARY UV-Light for Plant Development by Marvin Boell, TUV SUD Asia Pacific (p 08) EVENTS LpS Aims to Prepare Its Delegates for the Digital Future by Siegfried Luger, LED professional (p 28) TECH-TALKS BREGENZ Rico Kramer, Inventor, esave ag compiled by Dr. Guenther Sejkora, LED professional (p 30) RESEARCH A Study on Aerosol Jet Printing in LED Module Manufacturing by Dr. Paul Hartmann et al., Joanneum Research Forschungsgesellschaft (p 38) Laser Technology for Lighting Applications: A Review and Analysis of a Promising Technology by Nicola Trivellin et al., University of Padova (p 44) RESEARCH REPORTS Challenges of the Integration of Lighting Systems and Components in IoT by B. Pronk & S. Verbrugh, Signify & OpenAIS (p 50) TECHNOLOGIES UV LED Technology for Emerging Applications in Agriculture by Terrance Berland, Violet Defense Group (p 56) APPLICATIONS Smart Lighting and HCL in Office Applications by Timo Pakkala, Casambi (p 62) SPECIAL TOPIC Intelligent Lighting - A Case of Diminishing Returns? by Matthias Kassner, EnOcean (p 68) Read more »

Jul 09, 2018

LpR68_744081.pdf

Events | Event-Reports | Event Post Show Report | Jun 21, 2018

Asia’s Most Influential Lighting and LED Event Announces Increased Visitor Numbers

Guangzhou International Lighting Exhibition celebrated another successful edition as more than 165,000 visitors (5% increase from 2017) descended on the China Import and Export Fair Complex in Guangzhou from June 9 ‒ 12. A total of 2,602 exhibitors demonstrated the latest in lighting and LED products and solutions across 19 halls and 195,000 sqm of exhibition space. The main thoroughfare at the exhibition ¬– The Pearl Promenade – was also a hive of activity as the THINKLIGHT: Embracing Changes Forum enticed thousands of visitors to a programme of talks from some of the world’s leading authorities in lighting concepts, technology and design. Read more »

Events | Event-Reports | Event Post Show Report | Jun 12, 2018

LED Expo Thailand 2018 Opened Up Growth Opportunities

LED Expo Thailand 2018, ASEAN’s largest exhibition on LED products & technology concluded on an affirmative note with new records. This key business and networking event that took place in Challenger 1, Impact Exhibition & Convention Center, Bangkok, Thailand, served as the platform to showcase products and technical innovations from the LED industry. Read more »

Business | Company News | May 15, 2018

Osram Accelerates Its Technological Shift and Explores Future Markets

“The first half of the fiscal year was challenging due to various factors. However, the long-term growth trend remains intact, while the reorganization and the technological shift are continuing,” said Olaf Berlien, CEO of OSRAM Licht AG. Read more »

May 04, 2018

LpR67_Full_529771.pdf

Commentary Blue Light Hazard - How Dangerous is SSL Lighting? by Dr. Thomas Attenberger, Instrument Systems (p 08) Tech-Talks Bregenz Ken Munro, Partner & Founder, Pen Test Partners compiled by Dr. Guenther Sejkora, LED professional (p 36) Research Automatic Panel Level Transient Thermal Tester by Prof. Gordon Elger et al., Technische Hochschule Ingolstadt (p 44) Roll-to-Roll UV Nanoimprint Lithography for Large-Area Nano- and Micro-Structuring of Flexible Substrates by Dr. Paul Hartmann et al., Joanneum Research Forschungsgesellschaft m.b.H (p 50) A New Approach for Manufacturing LED Advertising Boards Backlighting by Dr. Eveliina Juntunent al., VTT Technical Research Centre of Finland (p 56) EVENTs Lighting Industry Quo Vadis - Impressions from Light + Building 2018 by Arno Grabher-Meyer, LED professional (p 62) Manufacturing A Manufacturing Revolution for the LED Lighting Industry by Paavo Käkelä, EID Tech (p 76) Technologies Integrating Lighting in the Internet of Things by B. Pronk & F. van Tuijl, Philips Lighting Research & Philips Lighting (p 80) LED Lighting Requires New Approaches in Optics by Marek Škereň, IQ Structures (p 88) Aeronautics Abrasion in Transparent Lens Materials for Exterior Aircraft Lighting by Adam Willsey, Kopp Glass (p 92) Read more »

May 04, 2018

LpR67_859079.pdf

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

Event Post Show Report | Oct 24, 2017

LpS 2017 Fulfils Its Potential to be the Most Comprehensive, International Event in Lighting to Date

The widely anticipated 7th LED professional Symposium +Expo was set to be the biggest and most comprehensive event in lighting to date, and it did not disappoint. Over 1,600 leading technology experts, from industry and research, came together at LpS 2017 to explore, to debate and to build the future of lighting technologies together. Read more »

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 »

Event Post Show Report | Oct 19, 2017

The First TiL 2017 Successfully Illuminates the Future of Lighting for Over 1,600 Visitors

The eagerly awaited Trends in Lighting 2017 saw over 1,600 visitors, including designers, architects, technicians and consultants, from every aspect of lighting, gather for three insightful days of debate and discussion. TiL 2017 met the industry’s expectations by bridging the gap between application, design and technology, and allowing experts to share ideas about, and experience the future of lighting. Read more »