Technologies & Research

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 »
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-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 »
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 »
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 | 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 »
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 »
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 »
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 | 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 »
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 »
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 »
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 »
HCL-Research | Research News | Full Spectrum LEDs | Health + Wellbeing | Color Perception | May 11, 2020
Executive Summary on "A Study on the Perception of Full Spectrum LEDs" Published
Executive Summary on "A Study on the Perception of Full Spectrum LEDs" Published From a LED producer's perspective, it is essential to have knowledge about the perception of LEDs by human beings. To consolidate existing and gain new knowledge on recently introduced Full Spectrum LEDs, which claim to bring natural light quality into electric lighting appliances, the Fraunhofer Institute for Building Physics (Germany) conducted a study in cooperation with three main LED manufacturers Nichia (Japan), Seoul Semiconductor (Korea), Toshiba Materials (Japan) and the LED gear supplier Lumitronix (Germany). Read more »
Research News | SSL | LEDs | Light Generation | Light Extraction | Jun 10, 2020
Pushing Photons - Metasurface Design Methods Can Make LED Light Act More Like Lasers
Pushing Photons - Metasurface Design Methods Can Make LED Light Act More Like Lasers UC Santa Barbara researchers continue to push the boundaries of LED design a little further with a new method that could pave the way toward more efficient and versatile LED display and lighting technology: In a paper published in Nature Photonics, UCSB electrical and computer engineering professor Jonathan Schuller and collaborators describe this new approach, which could allow a wide variety of LED devices — from virtual reality headsets to automotive lighting — to become more sophisticated and sleeker at the same time. Read more »
Research News | Technologies | LiFi | Jun 15, 2020
CEA-Leti Researchers Break Throughput Record for LiFi Communications Using Single GaN Blue Micro-Light-Emitting Diode
CEA-Leti Researchers Break Throughput Record for LiFi Communications Using Single GaN Blue Micro-Light-Emitting Diode CEA-Leti today announced its researchers have broken the throughput world record of 5.1 Gbps in visible light communications (VLC) using a single GaN blue micro- light-emitting diode (LED). Their data transmission rate of 7.7 Gbps achieved with a 10 µm microLED marks another step toward commercialization and widespread use of LiFi communication. Read more »
Research News | LEDs | Perovskite | Inkjet-Printing | Light Generation | Jun 15, 2020
Printed Perovskite LEDs – An Innovative Technique Towards a New Standard Process of Electronics Manufacturing
Printed Perovskite LEDs – An Innovative Technique Towards a New Standard Process of Electronics Manufacturing A team of researchers from the Helmholtz-Zentrum Berlin (HZB) and Humboldt-Universität zu Berlin has succeeded for the first time in producing light-emitting diodes (LEDs) from a hybrid perovskite semiconductor material using inkjet printing. This opens the door to broad application of these materials in manufacturing many different kinds of electronic components. The scientists achieved the breakthrough with the help of a trick: "inoculating" (or seeding) the surface with specific crystals. Read more »
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