Analysis of Heat Paths in LED Retrofit Lamps
Analysis of Heat Paths in LED Retrofit Lamps by Peter W. NOLTE, Dr., Research Team Leader at Fraunhofer Application Center for Inorganic Phosphors, Germany
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How to Address the Lighting Industry‘s Concerns Regarding Product Compliance Online
How to Address the Lighting Industry‘s Concerns Regarding Product Compliance Online by Marion Ebel, Policy Manager, LightingEurope, Brussels
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HCL Basics- Ergonomy & Geometry in Integrative Lighting / HCL
HCL Basics- Ergonomy & Geometry in Integrative Lighting / HCL by Octavio L. PEREZ, Ph.D. (Multidisciplinary Science), WELL AP, International Consultant / Investigator at Mount Sinai Hospital, NYC
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Tech-Talks BREGENZ with Jürgen HONOLD, Dipl.Des.(FH)
At LpS 2019, Jürgen Honold, Dipl.Des.(FH), and his co-presenter Dr. Martijn Dekker, held a very interesting and remarkable lecture about photobio-modulation (PBM). LED professional wanted to learn more and asked Jürgen Honold for an interview. As Technical Fellow, he is responsible for Seaboroughs' advanced lighting research and development and exactly the right person to talk with when it comes to HCL and related technologies and applications. Dr. Martijn Dekker, CEO of Seaborough accompanied him and gave an introduction with additional insights into Seaborough and the company's structure and strategy
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Discomfort Caused by Glare from Luminaires with a Non-Uniform Source Luminance
Glare and the resulting discomfort are a persistent issue in lighting that became even bigger with the introduction with LEDs as a light source. While the UGR method is well established, it is sometimes heavily discussed if it is appropriate for SSL. The limitations of the UGR method need to be understood. Peter Thorns BSc(Hons), CEng, FCIBSE, FSLL, explains these limitations and consequently describes the research and how to apply correction measures.
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Adopting an LED More Suited to Circadian Entrainment
Since the introduction of LED lights, a lot has been said about risks of blue light for ocular health on the one hand, and the opportunity of circadian entrainment, on the other hand. While a controversial discussion on the first topic is ongoing, the second topic is well accepted. To solve both issues, Bill Chan, President of LiteController Inc. proposes the application of 465-470nm pumped phosphor converted white LEDs with a content of 86% - 92% blue-turquoise light and 8% - 14% blue-violet light. In the article he concentrates on the second topic and proves the benefit of regulating the circadian entrainment more efficiently, maintaining a high typical efficacy of 150 lm/W and good color rendering of CRI 80+ ideally supporting the WELL Building Standard.
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Transform Your Space with Thorn's New VCT Technology
VCT technology (Variable Color Temperature) brings a new dynamic to your space. It is now possible to set dedicated color temperatures for specific areas of your space, ranging from 2700 K to 6500 K. The VCT enables you to manually and automatically adjust light levels and to set pre-defined lighting scenarios to your exact requirements.
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Axis Lighting Launches BalancedCare™ Product Lines and Brand
BalancedCare by Axis Lighting is a new brand focusing on healthcare facility lighting, and features a comprehensive and complementary family of luminaires. Mindful of both style and function, and taking into account the latest LED chip design, BalancedCare luminaires are engineered to meet all of the requirements of today's complex healthcare environments. Designed for patient rooms, bathrooms, corridors, nurses' stations and common areas, these luminaires provide lighting for wellness without trade-offs.
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Tech-Talks BREGENZ with Jürgen HONOLD, Dipl.Des.(FH)
At LpS 2019, Jürgen Honold, Dipl.Des.(FH), and his co-presenter Dr. Martijn Dekker, held a very interesting and remarkable lecture about photobio-modulation (PBM). LED professional wanted to learn more and asked Jürgen Honold for an interview. As Technical Fellow, he is responsible for Seaboroughs' advanced lighting research and development and exactly the right person to talk with when it comes to HCL and related technologies and applications. Dr. Martijn Dekker, CEO of Seaborough accompanied him and gave an introduction with additional insights into Seaborough and the company's structure and strategy
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Research Shows that Streetlights Contribute Less to Nighttime Light Emissions in Cities than Expected
When satellites take pictures of Earth at night, how much of the light that they see comes from streetlights? A team of scientists from Germany, the USA, and Ireland have answered this question for the first time using the example of the U.S. city of Tucson, thanks to "smart city" lighting technology that allows cities to dim their lights. The result: only around 20 percent of the light in the satellite images of Tucson comes from streetlights. The study is published today in the journal "Lighting Research & Technology".
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LightLab Sweden's New UV Light Disinfection Technology Outperforms Conventional UV-Technology
Swedish cleantech company LightLab Sweden is introducing a new UVC disinfection technology called PureFize®, proven to inactivate bacteria and viruses, among them SARS-CoV-2. To test its effectiveness, LightLab Sweden partnered with SAES Group and the University of Siena, Italy. To proof the effectiveness, a prototype of a consumer product has been designed. It shows that PureFize can be used to inactivate any SARS-CoV-2 presence (>99.9999%) on items that consumers use every day. The results will be submitted for publication in the International Journal of Public Health.
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Porotech Launches Groundbreaking Micro-LED Product
University of Cambridge spin-out Porotech has today announced the launch of its first product based on its breakthrough gallium nitride (GaN) production technique that is set to transform the electronics industry. The company has launched the world's first commercial native red LED epiwafer for micro-LED applications.
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17% Flux Boost in Key Colors for LUXEON C and CZ Color Lines
Lumileds announced breakthrough flux delivery from the PC Amber, Lime and Royal Blue emitters in its LUXEON C and CZ Color Lines, the lighting industry's broadest lines of color LEDs. The incredible 17% leap in flux of PC Amber in LUXEON C LEDs supports more efficient, safer, and easier to design lighting for first-responder vehicles, tow trucks and construction vehicles
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Nexperia Launches Industry-First LED Drivers in DFN Package with Side-Wettable Flanks
Nexperia, the expert in essential semiconductors, today announced a new range of LED drivers in the space-saving DFN2020D-6 (SOT1118D) package. This case style features side-wettable flanks (SWF) which facilitate the use of AOI (automated optical inspection), and improve reliability. This is the first time LED drivers have been available in this beneficial package. The new leadless devices join Nexperia's wide range of LED drivers in leaded packages offering equivalent performance yet reducing PCB space by up to 90% compared to SOT223.
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Yujileds Launches the New Nourish Series LEDs 3.0μmol/J Efficacy with Specific Spectra
Yujileds is proud to introduce Nourish, a new white LED series for horticulture. The spectrum is designed as a balance between the optimization of plant growth and people's comfort. The 3000/4000 K CCT simulates the general indoor environment, with Ra 80 color rendition, biologists and agriculturist will have a comfortable environment with this light to work on the plants. Besides the standard 3000/4000 K, a specific CCT or spectrum can be customized accordingly for different plants or growth cycles.
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Würth Elektronik's Power-Saving WL-SMTW: Colors for Feeding Plants
SMT mountable LEDs in a 2835 package extend Würth Elektronik extensive range of horticulture LEDs. The three WL-SMTW series LEDs emit light of the wavelengths 450 nm (Deep Blue), 660 nm (Hyper Red) and 730 nm (Far Red) – ideal for applications controlling plant growth through specific light mixtures. Besides vertical farming and lighting in greenhouses, thanks to their efficiency, small size and minimal heat generation the WL-SMTWs, combined with the manufacturer's other LEDs are also suitable for classic LED applications like displays and backlighting.
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Zhaga Book 18 Ed. 2.0 Now Available to Community Members
Following its established policies on book publication, the Zhaga Consortium has made its Book 18 Ed. 2.0 "Smart interface between outdoor luminaires and sensing / communication modules" available to Zhaga Community members. The Zhaga Community membership is open to any company active in the lighting business free of charge.
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Nichia Corporation Becomes First to License TriGain® Technology from GE Current, a Daintree Company
Nichia Corporation will become the first to license TriGain® technology from GE Current, a Daintree company and deploy it into their LED chip portfolio for lighting applications globally. TriGain®, a potassium fluorosilicate (PFS) phosphor, is a breakthrough in phosphor technology that improves the color rendering for LEDs through its unique red emission, without sacrificing efficiency. Other solutions take a significant efficiency penalty to achieve similar color rendering.
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