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One Part Epoxy Adhesive Has Ultra Low Thermal Resistance

Master Bond Supreme 18TC is a single component smooth paste epoxy adhesive. Formulated with a blend of special thermally conductive fillers, this system can be applied in bond lines as thin as 10-15 microns. It offers an exceptionally low thermal resistance of 5-7 x 10-6 K•m2/W and a thermal conductivity of 22-25 BTU•in/ft2•hr•°F [3.17-3.61 W/(m•K)]. Heat transfer capabilities are outstanding. It passes NASA low outgassing requirements and can be used in applications in the aerospace, electronic, optical, specialty OEM and cryogenic industries. Read more »

Nedap Introduces Luxon IoT Node for Outdoor Lighting

Nedap is extending its Luxon IoT Node portfolio with a version developed for smart and wireless outdoor lighting control: The Luxon IoT Node Outdoor. The compact Luxon IoT Node Outdoor fits inside all LED fixtures using a standardised Zhaga/NEMA connector. This makes it very simple to unlock the full savings potential of LED technology. Read more »

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 »

Components | Electronics | Driver Modules | Indoor Applications | Apr 12, 2019

EPtronics Introduces Latest LP25W & LP40W Rev C Programmable LED Drivers

EPtronics is delighted to announce its newest generation LP Series of programmable constant current LED drivers. The LP25W and LP40W Rev C Series are the latest flicker-free, best-in-class drivers included in UL's Class P LED Driver Program. This UL listing program can save significant time and costs for LED luminaire manufacturers, allowing them to quickly substitute existing LED drivers with pre-approved EPtronics drivers without the need for recertification by UL. Read more »

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 solution for tight fitting applications. The smart EzyLED 3030 comes with a constant current regulator with built-in bias voltage rectification circuit and uses conventional 12V/24V AC/DC sources. The EzyLED is also available in a T-10 bulb. Request a free sample today! Read more »

Lumileds Tailors Luxeon IR Family for Cost Conscious High Power Applications

Lumileds introduced the Luxeon IR 2720 Line, high power emitters that set the standard for abundant radiant power delivered in an industry standard package for seamless integration in existing designs. The emitters provide high radiant power of up to 1,300 mW at 940 nm or 1,250 mW at 850 nm wavelength and feature high efficacy and a popular 120° beam angle. The 2.75x2.0 mm LEDs are undomed and especially useful for applications with package height limitations that prevent the use of domed solutions. The emitters address a wide array of cost conscious infrared applications from surveillance and machine vision to iris scanning and health monitors. Read more »

Featured | Tools | Measurement | Goniophotometers | Apr 09, 2019

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 »

GlacialLight Announces New Natural Sunlight of GL-FL35-NL Architectural Floodlighting Series

GlacialLight, the LED lighting division of GlacialTech Inc., announces the natural sunlight GL-FL35-NL Architectural Floodlighting series. The new lighting fixtures use the SEOUL SunLike CoB to light up objects in their natural colors. The CRI is 97, as well as the CQS (Color Quality Scale) is up to 98. The color fidelity index (TM-30-15 Rf) and color gamut score (TM-30-15 Rg) are close to natural light. Read more »

Components | Electronics | Driver Modules | Outdoor Applications | Apr 05, 2019

40-720 W High-Power LED Drivers with 97% Efficiency and up to 660 V Inputs

The "ICE" family of LED drivers from GWP-Powerland Technology Inc., a Division of FSP-Powerland, is an ultra-high-efficiency LED driver series targeted toward outdoor lighting like horticulture, fishing, sports, and other outdoor LED applications. The output programmability and wire controllability through optional Bluetooth or ZigBee makes the system solution very flexible. Read more »

Electrolube Provides Innovative Resin Solution for LED Lens Issue

Electrolube, the global manufacturer of electro-chemicals, has provided an innovative solution for a complex LED assembly issue. The customer, a leading manufacturer of street lighting and high-bay luminaires in India, had been experiencing problems with the attachment of individual lenses to the elements of multiple LED arrays. The function of these lenses is to scatter or focus light from the arrays, as required, and while some of them are held in position by fasteners, most are secured in place with a locking mechanism. The locking mechanism is perfectly adequate when the luminaire is placed in situ but it tends to loosen during transportation, leading to the lenses becoming detached and causing damage to the array. Read more »

Tridonic Adds Casambi Ready RF Modules and Sensors to the basicDIM Wireless Portfolio

For Bluetooth-based communication between luminaires Tridonic is launching two new Casambi Ready wireless modules in the basicDIM Wireless portfolio. They can be easily and flexibly integrated into existing systems and, with suitable sensors, can offer considerable potential energy savings. It is also possible for the lighting system to be individually adapted. Read more »

Components | Electromechanics | Connectors | Apr 02, 2019

TE Connectivity's LUMAWISE Endurance S - New Compact Solution to Zhaga Book 18 Compatibility

TE Connectivity (TE), a world leader in connectivity and sensors, has introduced a new compact connectivity solution that matches a new standardized interface between an outdoor LED luminaire and a sensing/communication module that sits on the outside of the luminaire. TE´s LUMAWISE Endurance S connector system consists of a standardized interface connection according Zhaga Book 18 and includes a receptacle to be mounted on the luminary and a base-and dome combination to function as enclosure for the control-electronics. Read more »

IoT Ready Alliance Dissolves and Capitalizes on the Breadth of the NEW Zhaga Consortium

Zhaga and the IoT Ready Alliance are pleased to announce that they have agreed to align their efforts and to proceed as a single organisation under the Zhaga Consortium. The objective is to foster a harmonized, global set of interface specifications for sensor-to-luminaire integration and to remove confusion in the industry. Read more »

Systems + Applications | Human Centric Lighting | Lamps | Smart Lighting | Mar 29, 2019

Healthe® New SunTrac™ A19 Seamlessly Transitions Between GoodDay® and GoodNight® Spectrums

Healthe® is excited to announce the launch of SunTrac™ A19, a product that combines engineered spectrums that have been optimized for both daytime and nighttime use into a single, dynamic, circadian lamp. Based on market demand, Healthe combined its proprietary GoodDay® and Goodnight® spectrums, which have been available this past year as separate products, into a single, easy-to-use, form factor. Now, consumers can benefit from both the energy-enhancing GoodDay spectrum during the day and the sleep-promoting GoodNight spectrum at nighttime by simply installing this one bulb. 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 »

Visual Appearance: Perception, Measurement and Metrics

Visual appearance is one of the most critical parameters affecting customer choice and needs in products. We use the response from our visual sense to process the complex patterns of light around us into objects, space, location and movement, and from that information, we make judgments leading to a particular course of action. For example, how we perceive the visual appearance of a product may cause us to buy it, reject it or even write to complain about it. We may choose to buy a particular food because its appearance suggests freshness. Our choice of car may have been influenced because its glossy appearance made us think of quality and prestige. Alternatively, we may reject a particular surface finish because its appearance suggested poor quality and the presence of defects. All of these examples represent judgments made on appearance. Read more »

Smart Lighting + IoT | Resources | Standardization | CIE | Mar 28, 2019

Adaptive, Dynamic and Intelligent Lighting

Previously, most lighting applications were designed to ensure suitable visual conditions, to support the most demanding visual task anticipated, whilst also taking into account requirements to provide adequate levels of visual comfort and aesthetics. In most cases this was a static lighting solution because the options to change light levels, luminance distribution, or light source spectrum were limited. Tasks, occupants, and needs change from time to time, making control over the lighting desirable, if unattainable. Advanced LED and controls technology make the unattainable possible; now, the key questions are also for CIE how to define the user needs for various applications and how best to set up lighting systems to be adaptive and intelligent in response. 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 | Horticulture | Applications | Mar 28, 2019

Enriching Horticultural Lighting for Faster Growth and Better Crops

Horticulture lighting is no new lighting application, but it gained momentum with the introduction and evolution of LED lighting, and it is meanwhile one of the fastest growing markets in lighting. Dr. Richard Blakey, Application Engineer at Würth Elektronik eiSos, explains how LED-based horticultural lighting can deliver even bigger advantages for commercial growers by introducing additional wavelengths that increase photosynthetic response - like Würth Elektronik's new members of the WL-SMDC SMD Mono-Color Ceramic LED Waterclear family that is used as a reference in the article. Read more »

48 VDC Integrated Drivers Offer New Options

LpR 70 Article, page 102: In the telecommunication and IT businesses, especially, 48 VDC grids have become quite popular. This growing global trend to facilitate direct current (DC) power supply in building "microgrids" presents new opportunities for solid state lighting designers. TE's Lighting Industry Manager, Ron Weber, and Global Product Manager, Scott Hamilton, describe how LED lighting fixture designers can now design luminaires around a 48 VDC constant voltage input, available to take advantage of the benefits of a low voltage DC distribution grid in a building. Read more »

Oculux Dim-to-Warm LED Track Luminaires Debuted by WAC Lighting

The new Oculux Dim-To-Warm architectural LED 120V track luminaires dim from a pure white 3000 K light temperature to an 1800 K incandescent ambient illumination. These superlative light levels are provided with a very high 95 CRI (color rendition index) to optimize tasks while creating a visually comfortable environment. Read more »

Featured | Components | LEDs | Multi-Color LEDs | Mar 27, 2019

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 »

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 »

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 »

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 »

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

Hazard or Hope? LEDs and Wildlife

LpR 70 Article, page 52: The introduction and widespread uptake of LEDs as outdoor lighting has caused no small amount of concern amongst conservation biologists. The prevailing impression that LEDs are always blue-white is well founded as adoption of LEDs for streetlights were invariably high color temperatures and with the deterioration of phosphors the blue wavelengths penetrated even more. But LEDs do have characteristics that differentiate them from other light sources and may allow for the reduction of environmental effects of lighting on species and habitats: direction, duration, intensity, and spectrum. Travis Longcore, Assistant Professor at the University of Southern California's School of Architecture, sheds light on all these aspects. 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 »

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 »

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 »

Resources | Commentary | Mar 25, 2019

An Industry at a Crossroads

Commentary from LpR 70: We often hear grumbles about the lighting industry suffering under low margins and high costs. Primarily, this is true for most traditional luminaire manufacturers but not as much for innovative controls and driver manufacturers, and even less so for innovative newcomers who understand the semiconductor business that has taken over a share of the luminaire manufacturers' revenue. Read more »

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