Top Articles
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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HCL Basics - SPD (Spectral Power Distribution) inIntegrative Lighting / HCL
HCL Basics - SPD (Spectral Power Distribution) 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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The Role of Standards In Harnessing Luminaire Data
The Role of Standards In Harnessing Luminaire Data, What Makes D4i and Bluetooth® Mesh a Perfect Couple for IoT Data Monetization?
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LiFi Communication Interview
For over a decade, research in LiFi has been intensified with amazing results. When Musa Unmehopa, an authority in the lighting industry, took on the position of Head of Ecosystems and Strategic Alliances for LiFi at Signify, it was clear that LED professional would have to report what he has to say about the status of LiFi and his future plans. We have known him since he was appointed Secretary General at Zhaga at the beginning of 2014. Since then he was always in charge at Philips Lighting, now Signify, in some capacity, also representing the company in the Connected Lighting Alliance. In addition, his resumé marks him as a specialist in standardization and a technology advisor.
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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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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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Helvar Introduces New Compact 45W Tunable White Driver
Helvar is passionate to spread the message of wellbeing through human-centric lighting solutions. Therefore, Helvar is very excited to announce a new Tunable White LED driver with some fantastic features for professional lighting. Helvar's new 45 W DALI Type 8 compact driver comes with wide output current range, parameter setting option with NFC, and SELV60 rating, all great benefits for flexible luminaire design.
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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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LED Technology Shines the Light on Ovarian Cancer Treatment
Scientists estimate that nearly 60% of all cancer patients do not respond effectively to chemotherapy treatments. Even worse – many of those same patients experience toxic and sometimes deadly side effects. Now, a Purdue University scientist and entrepreneur is working to use simple LED light to help determine if certain chemotherapy options will work for specific patients.
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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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Higher-Performance UV-C Solutions from Lumitronix Feature Nichia's New NCSU334B UVC LED
Following the successful introduction of the first UVC LED modules in August 2020, LED expert Lumitronix from Hechingen is expanding the existing concept of linear module solutions with three new, more powerful versions. These are as well mainly addressed to professional customers who are trained in handling UV-C radiation and can ensure a risk-free application.
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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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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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Fluence Launches VYPR 3x and VYPR DUO 3x2 Featuring Diversified PhysioSpec™ Spectra and Unique Design Flexibility
Fluence by Osram (Fluence), a leading global provider of energy-efficient LED lighting solutions for commercial cannabis and agriculture production, today expanded its top light solutions and launched the VYPR 3x and VYPR DUO 3x2. The latest VYPR series additions feature Fluence's diversified PhysioSpec™ spectra and market-leading efficacies up to 3.7 µmol/J.
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Cree to Sell LED Business to SMART Global Holdings, Inc. for up to $300 Million
Cree, Inc. today announced that the Company has entered into a definitive agreement to sell its LED Products business unit ("Cree LED") to SMART Global Holdings, Inc. for up to $300 million, including fixed upfront and deferred payments and contingent consideration. Upon closing, creates a pure-play global semiconductor powerhouse focused on providing disruptive technology solutions to high-growth segments including EV, 5G and industrial applications.
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Zhaga's Book 18 Takes the Next Step Forward
Zhaga is planning a 3rd edition of the popular Book 18 specification for outdoor luminaires, that will allow for architectures combining an ANSI C136.41 dimming receptacle with a Zhaga receptacle. Book 18 Ed. 3.0 will enable Zhaga-D4i certification of hybrid luminaires as well as control devices with an ANSI interface in addition to the certifications already offered by Book 18 Ed. 2.0.
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