Resources | LpR | Manufacturing | Lamps | Luminaires | Aug 13, 2018

A Manufacturing Revolution for the LED Lighting Industry

A Manufacturing Revolution for the LED Lighting Industry LpR 67 Article, page 76: Western business investments in local manufacturing facilities have been declining since the 1980s due to partnering with contract manufacturers in Asia. But with increasing and hidden costs in Asia, companies are now seeking to bring manufacturing back home. A recent innovation, microfactories, could be the solution. Paavo Käkelä, Chairman and VP at EID Tech in Finland, presents the microfactory called Ant PlantTM. He explains this new, flexible manufacturing concept, shows how it works and how it is set up, and analyzes the benefits of local, automated production of LED lighting products as an alternative to contract manufacturing in Asia. Read more »

Resources | LpR Article | Engineering | LEDs | Reliability | Aug 06, 2018

Electrical Over Stress - How to Prevent an LED Failing Earlier than Expected

Electrical Over Stress - How to Prevent an LED Failing Earlier than Expected Article from LpR 66, page 70: While LEDS are, in general, very robust, failures still happen due to electrical over stress. Mauro Ceresa, EMEA Field Application Engineer Manager at Cree, will cover all aspects related to electrical over stress, or when an LED fails due to being subjected to a voltage beyond its specification limits. He will explain why the failure occurs and how to prevent this from happening. The article will explain the fundamental aspects of a good PCB layout design and how this is linked to the longevity of an LED. Read more »

Resources | Tech-Talks Bregenz | Security | IoT | Aug 01, 2018

Tech-Talks BREGENZ - Ken Munro, Partner & Founder, Pen Test Partners

Tech-Talks BREGENZ - Ken Munro, Partner & Founder, Pen Test Partners Today, hardly a day goes by that we don’t hear about security breaches, hacker attacks or comprimized data; often as a result of insufficient security measures. IoT does not really improve this situation and it is therefore necessary for the industry to take this threat seriously. This is especially true for the lighting industry, whose aim is to become the IoT enabler. Ken Munro, founder and partner at Pen Test Partners, is an ethical hacker whose passion is to hack any technical product he can get his hands on. Unfortunately, he succeeds way to often. LED professional talked with him about ethical hacking, where he sees the risks in various products, where the risks are hidden and what can be done to minimize them. Read more »

Resources | LpR Article | Research | Life-Time | Simulation Tools | Jul 30, 2018

Lifetime- and Economic Efficiency Simulation of LED Luminaires in Dymola/Modelica

Lifetime- and Economic Efficiency Simulation of LED Luminaires in Dymola/Modelica Article from LpR 66 | page 40: The lifetime of an LED system is usually specified by the LM-80 report using the TM-21 method. Unfortunately, this value is solely valid for one specific application. Sebastian Hämmerle and Thomas Schmitt from the University of Applied Sciences in Vorarlberg developed a new open-source Modelica library for dynamic simulation of LEDs: The DynaLed library. The aim of the work was to evaluate the lifetime and the corresponding economic efficiency of LEDs in dynamic operation by means of the LM-80 report and according to the TM-21 calculation method. Furthermore, it should be possible to use the library for component dimensioning, e.g. the heatsink. The primary task was to develop simulation models which can be parametrized with manufacturer information, e.g. the datasheet, but still provide sufficient accuracy. As an application example an LED louvre luminaire (Article Code: 29001077) from LEDON Lamp GmbH was simulated utilizing the developed library. At the end, results from the lifetime- and the economic efficiency simulation were discussed. Read more »

Resources | LpR Article | Engineering | Lifetime | Drivers | Jul 23, 2018

Method and Circuit to Maintain Constant Light Output for LED Luminaires

Method and Circuit to Maintain Constant Light Output for LED Luminaires Article from LpR 66 | page 80: It is difficult to accurately predict the lifetime or the light output degradation of LED luminaires. A Constant Light Output (CLO) operation is implemented in some of the latest drivers. However, there are many factors that require a different algorithm in terms of time rate and forward current values that are usually not taken into account. Prof.Dr.Eng. Stelian Matei, from the Photometry and Electromagnetic Compatibility Laboratory at Electromagnetica SA, proposes and explains a new method is maintaining the luminous flux over the lifetime of the LED luminaire, considering the luminaire global light degradation. Read more »

Resources | LpR Article | Commentary | Safety | Light Sources | Jul 20, 2018

Blue Light Hazard - How Dangerous Is SSL Lighting?

Blue Light Hazard - How Dangerous Is SSL Lighting? Modern Solid State Lighting (SSL) technology has long since found its way into our normal working and living environments. In the early phases, consumers were most concerned with lifetime, pricing and light quality of the new LED-based light sources. Now they have become almost ubiquitous, a focus has been placed on safety. At the recent Light+Building exhibition topics such as photobiological safety and blue light hazard (BLH) were highly ranked among both visitors and exhibitors. Read more »

Resources | LpR Article | Light Generation | LEDs | Human Centric Lighting | Jul 02, 2018

A Near Infrared Enhanced LED Lighting Approach

A Near Infrared Enhanced LED Lighting Approach With the evolution of LED lighting, one topic has come more and more in the focus of the lighting industry: Human Centric Lighting (HCL). While HCL is not clearly defined, a common understanding is that this is light and lighting that supports health and the well-being of humans. Some new proposals are going beyond the approach of providing just visible light in adequate quality, but also to providing invisible radiation, UV and/or NIR that support health and well-being. Some research and the evolution of humans show clear evidence for positive effects of this kind of illumination. Scott Zimmerman, CEO at Silas, presents a new approach that adds NIR radiation to LED illumination. He explains the background of this idea, how it also improves the quality of visible light and discusses the health benefits. Read more »

Resources | LpR Article | Research | Light Generation | LEDs | Nanowire | Jun 27, 2018

Full-Color InGaN/AlGaN Nanowire Light-Emitting Diodes for SSL and Displays

Full-Color InGaN/AlGaN Nanowire Light-Emitting Diodes for SSL and Displays III-nitride based nanowire light-emitting diodes (LEDs) have received a staggering response as a future candidate for solid-state lighting and full-color displays due to their unique and exceptional features including drastically reduced polarization fields, dislocation densities as well as the associated quantum confined Stark effect (QCSE) on account of their effective strain relaxation. Moab Rajan Philip and his supervisor Dr. Hieu P Nguyen in the Nano-Optoelectronic Materials and Devices Laboratory at the New Jersey Institute of Technology (NJIT) present astonishing ideas to fabricate and control the color emission of III-nitride nanowire LEDs via molecular beam epitaxy (MBE) growth techniques. The advantage of such LEDs and their characteristics is also discussed. Read more »

Resources | LpR Article | Automotive | Driver IC | Jun 01, 2018

Flicker-Free Control of Individual LEDs in Matrix Headlights

Flicker-Free Control of Individual LEDs in Matrix Headlights LEDs combine design flexibility with practical, robust circuitry, enabling automotive designers to produce striking headlight designs matched by exceptionally long life and performance. Keith Szolusha, Sr. Design Leader for LED driver products at Linear Technology, and now part of Analog Devices explains how automobile designers are increasingly incorporating LEDs in lighting because they can be arranged in distinctive eye-catching designs - helping distinguish new models from old, or high end from economy. Read more »

Resources | Lp Article | Engineering | Thermal Management | May 15, 2018

Thermal Simulation Tool for LED Design Requirements

Thermal Simulation Tool for LED Design Requirements Light-emitting diodes (LEDs) are used and accepted in many areas of lighting technology today. But without the right thermal design, LED lamps would not be viable. Chris Aldham, Development Manager at 6SigmaET explains why keeping key components within narrow temperature limits is often critical, why this makes thermal simulation important to LED device designers, and how to select the right thermal management simulation tool for this task. Read more »

LFI 2018 | Beam Shaping | Award | Videos | May 14, 2018

LFI 2018 Award: Ledra Brands's Wireless Beam Shaping Downlight

LFI 2018 Award: Ledra Brands's Wireless Beam Shaping Downlight Read more »

LFI 2018 | LiFi | Videos | May 14, 2018

LFI 2018 Award: LumEfficient's LiFi System

LFI 2018 Award: LumEfficient's LiFi System Read more »

Videos | Event News | May 14, 2018

TOP Three Twitter Video Tweets from Lightfair International in Chicago

TOP Three Twitter Video Tweets from Lightfair International in Chicago Most viewed LFI 2018 video tweets @LEDprofessional. Read more »

LFI 2018 | Events | Award | Videos | May 14, 2018

LFI 2018 Award: Crestron's SolarSync Outdoor Sensor

LFI 2018 Award: Crestron's SolarSync Outdoor Sensor Read more »

Interview | Connected Lighting | May 12, 2018

International and Cross-Industry Projects such as OpenAIS are Absolutely Crucial to the Success of Connected Lighting

International and Cross-Industry Projects such as OpenAIS are Absolutely Crucial to the Success of Connected Lighting Interview with Jens Herter, Coordinator Alliances & Funding at Tridonic. Read more »

FEATURED

WHITE PAPER - LEDs Lead the Way for Horticultural Lighting

WHITE PAPER - LEDs Lead the Way for Horticultural Lighting Horticultural lighting is one of the fastest growing markets in the LED lighting industry today. Currently estimated at being worth $690 million dollars annually by LEDInside, this figure is projected to reach billions in the coming years. Read more »

FEATURED

LUXTECH Introduces FLEX Color, Architectural Grade RGB Tape

LUXTECH Introduces FLEX Color, Architectural Grade RGB Tape LUXTECH, a leading American manufacturer of architectural grade LED modules, introduces FLEX Color to their line of flexible LED strips. The RGB strip light is populated by high quality LEDs with tight binning to maintain color consistency. Read more »

FEATURED

Job Opportunity

Job Opportunity Synergy 21 has been a successful, well-known brand in the lighting industry for around 9 years. We satisfy our customers with top-notch planning, development, production, and distribution of high-quality lighting fixtures. We also offer an attractive working environment to over 200 employees at 6 ... Read more »

FEATURED

XP-G2 High Efficacy LEDs Use Less Power, Drop-in Compatible

XP-G2 High Efficacy LEDs Use Less Power, Drop-in Compatible Cree, Inc. announces the new High Efficacy (HE) version of the XLamp® XP-G2 LED that delivers improved performance compared to standard XP-G2 LEDs, with higher output and greater efficiency to enable smaller, lighter, lower-cost designs. The original XLamp XP-G2 LED pioneered a broad set of LED ... 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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