Top Articles
WHITE PAPER - Measuring Color Uniformity
The color uniformity of light generated by LED luminaires plays a major role in many lighting applications. This makes it an important parameter to measure in both the R&D stage and during the quality assurance process. MKS Instruments has stayed abreast of this challenge by developing a new feature for its FluxGage photometrical system: the color uniformity measurement function. It allows quick evaluation of optical assemblies for color mixing and beam shaping. This whitepaper presents this novel feature of the system.
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WHITE PAPER - Protection Materials To Improve LED Device Lifetime And Performance
With the rapid growth of the LED market, correct product selection is imperative to ensure LED performance and lifetime. Jade Bridges, Electrolube’s Global Technical Support Manager, will highlight the use of LEDs in various environments and introduce how to specify appropriate protection under such conditions.
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CIRCADIAN ZircLight and Acuity Brands Announce Strategic Partnership
CIRCADIAN ZircLight Inc. today announced a strategic partnership with Acuity Brands, Inc (NYSE:AYI) which will bring to the North American lighting market spectrally-engineered Zirc™ LED lights that boost human performance, health and well-being by entraining our natural circadian rhythms to mitigate the issues associated with circadian disruption.
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LEDiL Makes Key Leadership Changes
Finnish optics specialists make key changes to the leadership team. Petteri Saarinen has been appointed as the new CEO of LEDiL, a leading company in the global LED secondary optics market. Petteri Saarinen has more than 20 years of operational and international experience within several different companies. His most recent position was in the Finnish inductive energy solutions firm Trafotek.
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Upowertek Launched 30W Tunable White LED Driver
Upowertek launched a new product - 30 W tunable white LED driver BPR series. It has two channel output, which controls the warm and cold LED modules separately, users could adjust the color temperature and intensity by cellphone, remote controller and wall switch.
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Douglas Lighting Controls® Introduces the Conference Room Controls App to its Bluetooth® Wireless System of Devices
Douglas Lighting Controls®, a member of the Panasonic family of companies, recently announced the pairing of its Conference Room Controls App to its system of Bluetooth® Wireless devices. Designed for conference room and boardroom applications, the new iPad control console pairs seamlessly with Douglas Lighting Controls' Bluetooth Wireless eco-system of devices to provide a modern, large format touch screen interface for control functionality.
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Hella Announces Development of High-Resolution Lighting System Digital Light SSL|HD
With the new high-resolution lighting system "Digital Light SSL|HD", the lighting and electronics expert HELLA is making a further significant contribution to greater safety and comfort in road traffic. With this lighting technology, more than 30,000 pixels can be controlled intelligently and individually, thus bringing about numerous new safety functions like optical lane markings. Furthermore, original equipment manufacturers and end customers can use SSL|HD technology to implement and experience further options allowing enhanced individualisation, such as coming and leaving home animations as well as communication functions.
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Hella Announces Development of High-Resolution Lighting System Digital Light SSL|HD
With the new high-resolution lighting system "Digital Light SSL|HD", the lighting and electronics expert HELLA is making a further significant contribution to greater safety and comfort in road traffic. With this lighting technology, more than 30,000 pixels can be controlled intelligently and individually, thus bringing about numerous new safety functions like optical lane markings. Furthermore, original equipment manufacturers and end customers can use SSL|HD technology to implement and experience further options allowing enhanced individualisation, such as coming and leaving home animations as well as communication functions.
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EzyLED™ Now Stocked at Digi-Key
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!
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nanoLambda XL-500 - Tiny Spectroradiometer to Find Optimum Spectrum for Plants and Humans
nanoLambda, No.1 spectral sensor company, announced XL-500, a tiny BLE spectroradiometer with free Android and iOS apps, designed for lighting researches and industrial uses in plant, animal and human centric lighting fields.
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Horticultural Lighting - The Root to International Standards
Plants have evolved to make the most of the conditions in which they naturally grow. For some plants, this environment will be fully supportive; it may be less so for others. In general, the plant with the fully supportive conditions will predominate in the absence of external intervention. Humans have changed plants over the centuries, selectively growing the plants that provide maximum perceived benefits in terms of color, smell, yield and, perhaps more recently, nutritional value. For most of our evolution, we have had to make use of the environmental conditions available. The desire for cheap food, all year around, and attempts to minimize "food miles" has increased the move towards providing totally constructed growing environments.
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Commentary: Providing Better Light Should Still be the Focus of the SSL Industry
J. Norman Bardsley, PhD - As President of Bardsley Consulting, Norman advises industry, government and academia on solid-state lighting, flat panel displays and energy efficiency, with special emphasis on diffuse lighting and organic electronics.
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Tech-Talks BREGENZ - Dr. Scott Wade, Technical & Certification Manager, DiiA
Dr. Scott Wade has been the Technical & Certification Manager for DALI/DiiA since 2013 and has been an industry expert member of the IEC62386 standardization team for about 14 years. He was invited to hold a lecture at the LpS 2018 about the founding of DiiA for the purpose of taking over the DALI trademark from ZVEI and discussed measures that were taken to further develop the standard and its certification process and make the DALI concept future proof with DALI-2.
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Hella Announces Development of High-Resolution Lighting System Digital Light SSL|HD
With the new high-resolution lighting system "Digital Light SSL|HD", the lighting and electronics expert HELLA is making a further significant contribution to greater safety and comfort in road traffic. With this lighting technology, more than 30,000 pixels can be controlled intelligently and individually, thus bringing about numerous new safety functions like optical lane markings. Furthermore, original equipment manufacturers and end customers can use SSL|HD technology to implement and experience further options allowing enhanced individualisation, such as coming and leaving home animations as well as communication functions.
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Chinese Researchers Propose Method to Overcome Low Efficiency of High-Power Flip-Chip LEDs
Chinese scientists from different research centers recently published a co-authored paper on "Highly Efficient GaN-based High-Power Flip-Chip LEDs" in Optics Express Vol. 27, Issue 12, pp. A669-A692 (2019)under the terms of the OSA Open Access Publishing Agreement. High-power flip-chip light-emitting diodes (FCLEDs) suffer from low efficiencies because of poor p-type reflective ohmic contact and severe current crowding, they propose an improvement by using an Ag film.
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Thermal and Optical Challenges for SSL in Automotive Applications
LpR 72 Article, page 50: Solid State Lighting changed the lighting environment in automotive lighting almost more than in the field of general lighting. While efficiency of the devices increased and every few weeks new improvements are reported, thermal management remains crucial and a critical part of the system. Umut Zeynep Uras, Ahmet Mete Muslu and Mehmet Arik, from the Energy Efficient Electronics and Lighting Technologies Center (EVATEG), Department of Mechanical Engineering, College of Engineering at Ozyegin University, and Fatih Goren from the FARBA Corporation, explain the dependencies between photometric, electrical and thermal parameters of an automotive lighting application.
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LED Lighting Systems in Smart Buildings with DC Microgrids
LpR 72 Article, page 60: While electric motors for ventilation and air-conditioning systems were already DC-based in the past, powerful IT systems, LED lighting systems, photovoltaic systems with batteries and charging systems for electro mobility are now increasingly being used in modern building environments. They all need direct current (DC). Therefore, an obvious step is to equip modern buildings with DC grids. Carsten Moellers from Abalight discusses a number of unresolved questions and presents possible solutions in this article.
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