Trends

Trends

Research News | Technologies | Special Applications | Manufacturing | 3D Printing | May 04, 2020
Austrian Tech University Graz Revolutionizes 3D Metal Printing Using LEDs
Austrian Tech University Graz Revolutionizes 3D Metal Printing Using LEDs A technology developed at Graz University of Technology uses LED instead of laser sources for the additive manufacturing of metal parts and optimizes 3D metal printing in terms of construction time, metal powder consumption, equipment costs and post-processing effort. Read more »
Fundings + Projects | Research News | Office Lighting | Health + Wellbeing | May 04, 2020
Repro-Light Consortium Announce Intelligent Workspace Lighting Concept
Repro-Light Consortium Announce Intelligent Workspace Lighting Concept The pioneering design team at Bartenbach unveils a brand-new intelligent lighting concept set to revolutionize workspace personalization. It is set to deliver a truly user-centric, workspace lighting blueprint for lighting designers to transform workspaces for healthier living. The story began with Bartenbach's involvement in the Repro-light project consortium, funded through the European Commission's Horizon 2020 work program. The scope of the project, "To successfully initiate transformation in the European LED lighting industry, by creating the 'Luminaire of the Future'." Part of this remit was to develop a new customizable lighting system. Read more »
Nichia | Fraunhofer | Featured | Research | Resources | Reports | Apr 22, 2020
Full Spectrum LEDs Outperform Standard LED Lighting, Study Shows
Full Spectrum LEDs Outperform Standard LED Lighting, Study Shows Full Spectrum LED products outperform conventional solutions, according to a study into the visual impact and perceptual performance of LED lighting by the Fraunhofer Institute for Building Physics (IBP) in Stuttgart, Germany. Read more »
Environment | SSL | Health + Environment | Research News | Apr 06, 2020
Light Pollution Suppresses Melatonin Production in Perch
Light Pollution Suppresses Melatonin Production in Perch Melatonin controls the body clock – high melatonin levels make us feel tired in the evening. However, the hormone also plays an important role in animals' biological rhythms. Artificial light at night – light pollution – can suppress the production of melatonin in fish, even at very low light intensities, a finding established by researchers from IGB. Read more »
SSL | Technologies | Research News | UV | Disinfection | Apr 02, 2020
Seoul Viosys and SETi's Violeds Technology Proves 99.9% Sterilization of Coronavirus (COVID-19) in 30 Seconds
Seoul Viosys and SETi's Violeds Technology Proves 99.9% Sterilization of Coronavirus (COVID-19) in 30 Seconds Seoul Viosys and Sensor Electronic Technology, Inc. ("SETi"), leading global innovators of UV LED products and technology, announced that it has been successful in achieving 99.9% sterilization of coronavirus (COVID-19) in 30 seconds. Tests were conducted with the research group of Korea University, Korea's top rank university, by using a compound semiconductor Violeds technology that is being mass-produced. Read more »
SSL | Technologies | Light Generation | Mar 25, 2020
Advanced "Super-Planckian" Material Exhibits LED-Like Light When Heated
Advanced "Super-Planckian" Material Exhibits LED-Like Light When Heated Could there be a new kind of light in the universe? Since the late 19th century, scientists have understood that, when heated, all materials emit light in a predictable spectrum of wavelengths. Research published this week in Nature Scientific Reports presents a material that emits light when heated that appears to exceed the limits set by that natural law. Read more »
HCL-Research | Health | Applications | Feb 24, 2020
LRC Evaluates Hybrid UV/Blue Light Lighting System to Reduce Healthcare-Associated Infections
LRC Evaluates Hybrid UV/Blue Light Lighting System to Reduce Healthcare-Associated Infections People who visit hospitals are expecting care and treatment, not additional complications, yet approximately 1 in 25 patients contract healthcare-associated infections (HAIs) in U.S. hospitals, according to the Centers for Disease Control and Prevention (CDC). Standard cleaning procedures usually involve manual application of detergents and disinfectants. Unfortunately, the efficacy of these manual cleaning procedures can vary considerably. In fact, less than 50% of patient room surfaces are properly cleaned. Read more »
SSL | Technologies | microLEDs | Displays | Feb 13, 2020
Compound Photonics and Plessey Create microLED Display Modules from Bonded Wafers
Compound Photonics and Plessey Create microLED Display Modules from Bonded Wafers Compound Photonics US Corporation (CP), a leading provider of compact high-resolution microdisplay solutions for Augmented Reality (AR) and Mixed Reality (MR) applications, and Plessey Semiconductors Ltd. (Plessey), an embedded technologies developer at the forefront of microLED technology for AR and MR display applications, today announced they have produced the first fully addressable microLED display modules resulting from their previously announced strategic partnership to develop and introduce GaN-on-Silicon microLED based microdisplay solutions for AR/MR applications. Read more »
Resources | LpR Article | Technologies | UV | Horticulture | Feb 05, 2020
Transparent Material Considerations for UV Optics in Horticultural Lighting Applications
Transparent Material Considerations for UV Optics in Horticultural Lighting Applications Advancements in UV LED technology have begun changing the horticultural lighting landscape. Research is still ongoing to discover the extent of benefits and best practices of using UV light in horticulture. Using optics in tandem with UV LED light systems can help reach performance goals and optimize growing. Although there are several UV- transmitting materials available, not all are equivalent or able to meet the requirements for UV applications. Justine Galbraith, glass engineer, and Sharayah Follett, market development manager at Kopp Glass, Inc. discuss the performance considerations of various UV-transmitting materials and how application challenges are addressed by integrating optical elements. Read more »
Resources | LpR Article | Research | LEDs | Manufacturing | Feb 05, 2020
Hermetic Polymer-Free White LEDs for Harsh Environments
Hermetic Polymer-Free White LEDs for Harsh Environments AlGaInN-based white LED can easily achieve lifetimes of up to 100,000 h depending on junction temperature and current density. However, state of the art silicone encapsulated LEDs with powder-based phosphors reveal a strong dependence of field lifetimes on environmental conditions such as humidity, corrosive gas and air pollutant exposure. Dr. Michael Kunzer, Group Leader LED Modules at Fraunhofer Institute for Applied Solid State Physics and his colleagues, Ralf Schmidt, Andreas Zibold, Vasileios Georgiou-Sarlikiotis, Michael Arnold and Isabel Kinski propose luminescent ceramics as an interesting alternative to polymer-dispersed phosphors. This provides entirely new opportunities for the manufacturing of white LEDs. The authors explain the properties and advantage of this hermetic, light converting cap material and how to completely avoid polymers. Read more »
Resources | LpR Article | Research | Thermal Management | Testing | Measurement | Feb 05, 2020
A New Approach for Fast and Accurate Measurement of Light Emitting Diodes Junction Temperatures
A New Approach for Fast and Accurate Measurement of Light Emitting Diodes Junction Temperatures LpR 73 Article, page 48: Junction temperature of LEDs is one crucial parameter to being thoroughly observed. In this paper, Ahmet Mete Muslu, Onuralp Isil and Prof. Mehmet Arik from the Energy Efficient Electronics and Lighting Technologies Center (EVATEG), Department of Mechanical Engineering at the College of Engineering Ozyegin Universitywill at first describe the importance of Tj for LED systems including RGB and white LEDs. Then they will present techniques from literature and recently in-house developed novel methods and a new Junction Temperature Measurement Device (EVAtherm). Results in selected general lighting and automotive lighting applications will be demonstrated. Read more »
HCL-Research | Research News | HCL | Health | Flicker | Feb 05, 2020
Flickering Light Mobilizes Brain Chemistry that May Fight Alzheimer's
Flickering Light Mobilizes Brain Chemistry that May Fight Alzheimer's For over a century, Alzheimer's disease has confounded all attempts to treat it. But in recent years, perplexing experiments using flickering light have shown promise. The promise of flickering light to treat Alzheimer's takes another step forward in this new study, which reveals stark biochemical mechanisms: 40 Hertz stimulus triggers a marked release of signaling chemicals. Read more »
Resources | Projects | Fundings | Research News | SSL | Light Conversion | Feb 03, 2020
ENABLED – A New Funded Research Program to Design Fluorescent Proteins for White LEDs
ENABLED – A New Funded Research Program to Design Fluorescent Proteins for White LEDs A joint research project between Spain, Italy and Austria will work to replace inorganic phosphor filters in LEDs by those nature uses deed down the sea. The ENABLED project, coordinated by the Spanish research center IMDEA Materials Institute, has a budget of € 2.7 million euros, will run for the next 3 years and is funded by the European Commission under the Future and Emerging Technologies programme. Read more »
Technologies | Light Generation | LEDs | Phosphors | Jan 22, 2020
Researchers from Hokkaido University Let Europium Shine Brighter
Researchers from Hokkaido University Let Europium Shine Brighter A stacked nanocarbon antenna makes a rare earth element shine 5 times more brightly than previous designs, with applications in molecular light-emitting devices. - The europium Eu(III) complex with nanocarbon antenna emitting fine red light. Read more »
Technologies | Horticulture | Standardization | Jan 09, 2020
Researchers Call for Greenhouses LED Lighting Standards
Researchers Call for Greenhouses LED Lighting Standards While LED lighting can enhance plant growth in greenhouses, standards are needed to determine the optimal intensity and colors of light, according to Rutgers research that could help improve the energy efficiency of horticultural lighting products. Read more »
Technologies | Micro-LEDs | LED Modules | Displays | Jan 09, 2020
SSC Develops World's First One Pixel Micro LEDs for 4K Resolution TV from 42" to 220"
SSC Develops World's First One Pixel Micro LEDs for 4K Resolution TV from 42" to 220" Seoul Viosys Co., Ltd. (CEO Young Joo Lee) and Seoul Semiconductor Co., Ltd. (CEO Chung Hoon Lee), leading global innovators of LED and UV LED technologies, announced the new concept display, 'Micro Clean LED' at CES 2020, the biggest global consumer electronics and technology show, running from January 7th through January 10th. Read more »
HCL-Research | HCL | Health + Environment | Dec 19, 2019
Research Confirms that Light Pollution Can Suppress Melatonin Production in Humans and Animals
Research Confirms that Light Pollution Can Suppress Melatonin Production in Humans and Animals Melatonin sets the internal clock. Researchers from IGB in an international team have analyzed data on the impact of light pollution on melatonin formation in humans and vertebrates. They found that even the low light intensities of urban skyglow can suppress melatonin production. Melatonin influences the metabolism and other body functions. Read more »
HCL | HCL-Research | Biological Effects | Health | Dec 18, 2019
University of Manchester Scientists Suggest Blue Light Not So Disruptive to Sleep as Thought
University of Manchester Scientists Suggest Blue Light Not So Disruptive to Sleep as Thought Contrary to common belief, blue light may not be as disruptive to our sleep patterns as originally thought. According to the team, using dim, cooler, lights in the evening and bright warmer lights in the day may be more beneficial to our health. Twilight is both dimmer and bluer than daylight, they say, and the body clock uses both of those features to determine the appropriate times to be asleep and awake. Read more »
HCL | HCL-Research | Health | Dec 18, 2019
Tailored Light Improves Sleep Quality, Depression, Agitation in Older Adults with Alzheimer's Disease
Tailored Light Improves Sleep Quality, Depression, Agitation in Older Adults with Alzheimer's Disease Most people associate Alzheimer's disease with profound memory loss, but it is often the symptoms - sleep disturbances, depression, and agitation - that are a challenge to treat, and can significantly reduce the quality of life for both the affected individual and their family members and caregivers. In a research project funded by the National Institute on Aging (NIA), Dr. Mariana Figueiro, Professor and Director at the Lighting Research Center (LRC) at Rensselaer Polytechnic Institute, is investigating whether a tailored lighting intervention can lessen the impact of these symptoms in older adults living with Alzheimer's disease and related dementias (ADRD). Read more »
Resources | Tech-Talks Bregenz | Laser Technology | Dec 16, 2019
Tech-Talks BREGENZ - Julian Carey, Marketing Manager at SLD Laser
Tech-Talks BREGENZ - Julian Carey, Marketing Manager at SLD Laser In 2016, Nobel Laureate, Professor Shuji Nakamura held a key note speech at LpS. As the founder of Soraa and SLD Laser, he named laser lighting as the next, innovative step and disruption in lighting. He emphasized the need to focus on light quality and the tailoring of LED lighting to the natural needs of humas, providing light that mimics sunlight as closely as possible. It was therefore self-evident that LED professional would invite Julian Carey, the Product and Technical Marketing Manager at SLD Laser, for a Tech-Talk when he was at the LpS 2018 in Bregenz. We asked him for an update on the status of laser lighting, business strategies and future prospects and how laser lighting has developed since Professor Nakamura's statements in 2016. Read more »
Technologies | Micro-LEDs | LED Modules | Systems | Automotive | Dec 03, 2019
Hella Announces Development of High-Resolution Lighting System Digital Light SSL|HD
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. Read more »
Tools | Measurement | PowerAnalyzer | Engineering | Manufacturing | Research | Oct 30, 2019
Vitrek's New Ultra High Accuracy Power Analyzer Sets New Standard for Price/Performance
Vitrek's New Ultra High Accuracy Power Analyzer Sets New Standard for Price/Performance Vitrek, the leader in high-voltage test and measurement equipment, introduces the PA920 Series Ultra High Accuracy Power Analyzer. The PA920 sets the new standard for accuracy (0.024% of reading) in the graphical power analyzer market. It integrates an ultra-high accuracy, wideband waveform digitizer with advanced computational capability, a large high-resolution display and a full-color touchscreen user interface. Read more »
Technologies | Light Generation | Light Extraction | LEDs | Flip-Chip LED | SSL-Research | Oct 25, 2019
Chinese Researchers Propose Method to Overcome Low Efficiency of High-Power Flip-Chip LEDs
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. Read more »
Technologies | Human Centric Lighting | Color Perception | Health + Environment | Research | Oct 18, 2019
Study Reveals How Age Affects Perception of White LED Light
Study Reveals How Age Affects Perception of White LED Light Although LEDs are increasingly used in low-energy lighting and displays, consumers sometimes find their light harsh or unpleasant. Findings from a new study point to the need to take age-related perception differences into account when designing white LED lighting that is more pleasing to the eye. Read more »
Flicker | Spectral Light Meters | Tools | EcoDesign Directive | Measurement | Oct 08, 2019
BTS256-EF Measures New Flicker Metrics for Compliance with Ecodesign Directive
BTS256-EF Measures New Flicker Metrics for Compliance with Ecodesign Directive The European Commission´s proposed regulation of lighting under the Ecodesign Directive will establish mandatory product performance and quality requirements on all lighting products. This new EU directive will include strict requirements for flicker and stroboscopic effect, collectively referred to as temporal light artefacts (TLA). Simple measures such as flicker index and modulation depth will not be adequate as they do not distinguish the possible TLA effects and do not account for the effect of frequency-dependent sensitivity or the wave shape of light output. The BTS256-EF spectral light and flicker meter measures the specific metrics required by the regulation, PstLM and SVM. Read more »
Technologies | Research | Flexible OLEDs | Automotive | Special Applications | Sep 17, 2019
Fraunhofer Shows Modular OLED Light Strips
Fraunhofer Shows Modular OLED Light Strips At the International Symposium on Automotive Lighting 2019 (ISAL) in Darmstadt from September 23 to 25, 2019, the Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP, a provider of research and development services in the field of organic electronics, will present OLED light strips of any length with additional functionalities for the first time at booth no. 37. Read more »
Resources | LpR Article | Research | Thermal Management | Sep 17, 2019
Thermal and Optical Challenges for SSL in Automotive Applications
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. Read more »
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