HCL

Human Centric Lighting

Healthy Light - LED Technology for Health and Care Applications

The right light, at any time during the day or night, is absolutely essential for health and well-being especially in health and care applications. Peter Haumer, Head of Technical Sales at Lumitech/Kiteo reveals why, besides full spectrum and high color rendering, mimicking real daylight conditions with extended daylight curves, a direct and an indirect component (CCT 1.800–16.000 K), are essential. The article discusses the benefits that can be derived from special colors for medical staff, patients and residents. Read more »

Implications for Human-Centric Lighting Design in Tropical Nursing Homes: A Pilot Study

Light synchronizes our physiological and psychological rhythms to the 24-hour rhythm of the ambient changes. For the elderly, adequate environments to compensate for increasing frailty and sensory loss are crucial. Dr. Szu-Cheng Chien, Assistant Professor at the Singapore Institute of Technology reports from a pilot study that aimed to explore HCL design strategies in nursing homes in Singapore. Pre-/post implementation user surveys and quantitative evaluations were conducted. Read more »

Scientific Study Demonstrates Positive Effects of Daylight LED on Visual Comfort, Melatonin, Mood, Waking Performance, and Sleep

There has been an increase in research activity on the relationship between light and human bio-function, including a recent scientific study focusing on the effects of light spectrum on sleep quality, visual comfort, well-being and daytime alertness conducted by Prof. Christian Cajochen and his team at the University of Basel in Switzerland, entitled: "Effect of Daylight LED on Visual Comfort, Melatonin, Mood, Waking Performance, and Sleep." Read more »

Lumileds Enables Next Step in Human Centric Lighting with Launch of Luxeon Fusion

Lumileds, a global leader in innovative lighting solutions, today launched Luxeon Fusion, a breakthrough platform technology that delivers unprecedented white color selection while streamlining fixture manufacturing. Read more »

Melanopic Green - The Other Side of Blue

LpR 71 Article - page 74: For years now, there has been a controversial discussion about the amount of blue light in LEDs. Medical studies have shown that, depending on the amount, blue light at night disrupts the circadian rhythm. As a result, warm white (<3000 K) light sources are often touted as a solution for street lighting as well. Ian Ashdown, P. Eng. (Ret.), FIES Senior Scientist at SunTracker Technologies discusses whether or not it is sufficient to only look at the CDT or if other wavelengths and aspects should be considered. Numerous medical studies have shown that exposure to blue light at night suppresses the production of melatonin by the pineal gland in our brains and so disrupts our circadian rhythms. As a result, we may have difficulty sleeping. It is therefore only common sense that we should specify warm white (3000 K) light sources wherever possible, especially for street lighting. - True or false? Read more »

Systems + Applications | Human Centric Lighting | Lamps | Smart Lighting | Mar 29, 2019

Healthe® New SunTrac™ A19 Seamlessly Transitions Between GoodDay® and GoodNight® Spectrums

Healthe® is excited to announce the launch of SunTrac™ A19, a product that combines engineered spectrums that have been optimized for both daytime and nighttime use into a single, dynamic, circadian lamp. Based on market demand, Healthe combined its proprietary GoodDay® and Goodnight® spectrums, which have been available this past year as separate products, into a single, easy-to-use, form factor. Now, consumers can benefit from both the energy-enhancing GoodDay spectrum during the day and the sleep-promoting GoodNight spectrum at nighttime by simply installing this one bulb. Read more »

Oculux Dim-to-Warm LED Track Luminaires Debuted by WAC Lighting

The new Oculux Dim-To-Warm architectural LED 120V track luminaires dim from a pure white 3000 K light temperature to an 1800 K incandescent ambient illumination. These superlative light levels are provided with a very high 95 CRI (color rendition index) to optimize tasks while creating a visually comfortable environment. Read more »

Lighting and Emergency Dept. Clinician Wellness and Performance Improvement

LpR 70 Article, page 38: Short wavelength ("blue") light is known for its strong impact on humans covering "visual" function, wellness and performance of humans. Lighting has been recognized to have an effect on clinician wellness and performance as well as the occurence of medical errors. In a pilot study, Octavio L. Perez, Ph.D, WELL Accredited Professional and Adjunct Researcher at the Department of Population Health Science and Policy, and his team of scientists and physicians, Christopher Strother, Richard Vincent, Barbara Rabin and Harold S. Kaplan, from the Mount Sinai Hospital, New York, systematically investigated if and how a radically new lighting concept could improve wellness and performance in an emergency department. Read more »

3D Bio-Optical Models Reveals How the Human Body Uses the Entire Solar Spectrum

History teaches that global changes to the public's environment mandate a higher level of scrutiny to ensure that we first do no harm. In "Melatonin and the Optics of the Human Body" published in the journal Melatonin Research, Zimmerman and Reiter combine optical ray tracing from lighting and ESR data from the medical industry to model for the first time the 3D free radical distributions generate by lighting sources in the human body. Read more »

Lumitronix Introduces LED Module Series for Ledil Daisy Optics

The LED specialist Lumitronix from Baden-Württemberg has produced three special LED modules which are compatible with the lenses of the Daisy series by Ledil. As Ledil's official distributor, the Swabian company was able to develop the modules in close cooperation with the Finnish optics manufacturer. Read more »

GlacialLight Announces New Natural Sunlight of GL-DLC06-35-NL Series

GlacialLight, the LED lighting division of GlacialTech Inc., announces the natural sunlight GL-DLC06-35-NL and GL-DLC06DA-35-NL. The new lighting fixtures use the SEOUL SunLike CoB to light up objects in their natural colors. The CRI is 97, as well as the CQS is up to 98. The color fidelity index (TM-30-15 Rf) and color gamut score (TM-30-15 Rg) are close to natural light. Read more »

Bridgelux Introduces Thrive - Human Centric Light Spectrum Mimicking Sunlight

Bridgelux announced Thrive, a family of white point options for surface mount devices (SMD), V Series™, Vero® Series and Vesta® Series chip-on-board (COB) products designed to closely mimic the sun and provide a new class of full spectrum, human centric light emitting diode (LED) white point solutions. Read more »

Human Centric Lighting | Systems + Applications | Indoor Applications | Smart Lighting | Mar 08, 2019

Healthe® Introduces SunLync™ - Synchronize Lighting with Day-Night Cycle

Healthe® by Lighting Science is excited to announce the launch of SunLync™, a unique device that autonomously synchronizes Healthe wireless-enabled lighting to the sun's cycle. SunLync contains a GPS locator that captures local time and continuously broadcasts a system-wide mesh command to all Healthe lights within range. Lights respond by generating the appropriate spectrum and intensity, providing the right light at the right time. The frequent time signal generation from SunLync allows for a subtle response and fluid transition between light settings from the luminaries. Read more »

Human Centric Lighting | Systems + Applications | Indoor Applications | Luminaires | Feb 22, 2019

Healthe Launches Line of Architectural Luminaires

Healthe® by Lighting Science is pleased to announce the launch of its circadian optimized line of architectural luminaires. The product line, named 480®, leverages Healthe's patented technology to deliver the right spectrum at the right time, enhancing wellbeing and productivity in commercial, managed care, hospitality and many other applications. Available in a variety of linear profiles, mounting options, and lengths, the 480 line can be specified in nearly any type of configuration. Read more »

Lighting Science Spins off Biological Lighting Business Into Healthe Inc.

Lighting Science Group announces the launch of Healthe Inc. whose mission is to create environments where light is an active component of one's health. Healthe is carrying forward the Lighting Science legacy, utilizing its core technology and intellectual property to create circadian solutions that support the health, well-being and performance of people through their built environments. The company is launching an extensive line of new commercial products as well as incorporating the consumer products that made Lighting Science the leading circadian lighting company of the past decade. Read more »

Repro-Light Survey Shows: The Majority of Europeans Want Better Workplace Lighting

Results from a pan-European survey reveal that current lighting in the workplace is not satisfying end-users and their needs, while at the same time it has a big impact on productivity and human well-being. Read more »

Lamps | Human Centric Lighting | Systems + Applications | Indoor Applications | Dec 21, 2018

Circadian PAR30 Gimbal Spot Delivers Biological Spectrum with High Color Quality

Lighting Science, a global leader in circadian lighting technology, is pleased to announce the release of the Series A+™ Par30 Gimbal, a specification-grade lamp created for discerning clients and lighting designers. Series A+ features a healthy, circadian spectrum with high color quality, beam precision, and directional flexibility. Read more »

Lighting Scenes at the Touch of a Button - Tunable White System for Downlights

The DLE G2 PRE Tunable White system is precalibrated at the factory and has an adjustable colour temperature range of 2,700 to 6,500 K, so it covers the entire white range from warm white to cool white. Luminous flux remains constant at all times. The system provides a simple way to create dynamic lighting solutions such as Tunable White and human centric lighting applications. Read more »

Researchers from the University of Surrey Find that Blue Light Can Reduce Blood Pressure

Exposure to blue light decreases blood pressure, reducing the risk of developing cardiovascular disease, a new study from the University of Surrey and Heinrich Heine University Duesseldorf in collaboration with Philips reports. Read more »

Task Lights | Human Centric Lighting | Systems + Applications | Luminaires | Nov 02, 2018

Lighting Science Brings Dual-Spectrum Technology to the Palm of Your Hand

Lighting Science, a pioneer in biological LED lighting, is excited to announce the newest addition to its family of circadian lighting products. JOURNI™, a portable and versatile LED task light, provides engineered spectrums designed for circadian regulation in one convenient device. Whether you are a jet-setter or a college student pulling an all-nighter, the appropriate JOURNI setting enables you to sync your circadian rhythm – either to boost wakefulness and productivity or to wind down and prepare for sleep. Read more »

PerfectWhite: Luminus’ Latest Spectrally Tuned COB

Spectrally tuned sources are the essential components of human-centric lighting and Luminus PerfectWhite is it’s newest source, joining the Sensus and AccuWhite products, that has been purpose-designed and improves upon the light from conventional sources. PerfectWhite™, which closely replicates the visual characteristics of halogen lamps (3000 K) was preferred by lighting designers in testing at both Light + Building and Lightfair. Though the spectrums are a virtual match – Luminus filled the cyan gap – PerfectWhite’s color point is slightly below the black body locus and as a result, there’s no green/yellow tint that is common to halogen. A better halogen has long been a wish of the lighting design community and PerfectWhite delivers without infra-red, without green/yellow tint, and without ultraviolet radiation. Read more »

Legrand® and Lumileds Partner to Accelerate Adoption of Tunable White LED Lighting

Legrand, North & Central America and Lumileds today announced a partnership agreement that will bring to market a simple to integrate and easy-to-install plug and play solution that delivers high quality tunable-white light. Under this agreement, Lumileds will provide intelligent light sources (LUXEON-based solutions) through its award-winning Matrix Platform that are uniquely characterized and programmed to work with Legrand’s Wattstopper® Wattstopper® blanco® tunable-white logic modules within the Wattstopper Digital Lighting Management (DLM) lighting controls solution. Lumileds joins existing Legrand partnerships in tunable-white light engine as the exclusive LED array provider. Read more »

Human Centric Lighting | Systems + Applications | Indoor Applications | Luminaires | Oct 08, 2018

Lighting Science® Launches Good Day&Night Commercial Recessed Luminaires

Lighting Science®, renowned for its suite of human-centric LED lighting solutions, announces the launch of the Good Day&Night™ Troffers, which combine the patented GoodDay® and GoodNight® LED engineered spectrum technologies into one multi-dimensional circadian lighting product. The 2x2 and 2x4 troffers deliver biological benefits with high-quality light for peak visual performance, while providing the ability to control and personalize the spectrum of lighting – truly delivering the right light at the right time. Read more »

Luminus COB Modules For Dim-to-Warm and Dynamic CCT Control

Luminus’ breakthrough warm dimming and dynamic CCT tuning modules deliver exceptionally uniform color and control across any environment and enable consistency from fixture-to-fixture and between linear, downlights, and directional luminaires that are used in the same space. On-board IC chips, unique to the Luminus modules, enable multiple dimming curves and exceptionally uniform color and quality across a broad range of luminaires designed for hospitality, commercial and office environments. Read more »

Lighting Science Group Introduces Good Day&Night Downlight

Lighting Science® today announced the release of a new daytime productivity and natural sleep cycle lighting solution. The Good Day&Night® Downlight combines the company’s popular, patented GoodDay® and GoodNight® LED spectrum technologies into a single, easy-to-use luminaire. The new downlight is a comprehensive solution that enables residential and commercial customers to optimize daytime alertness, while also enhancing their nighttime sleep environment. Read more »

A Near Infrared Enhanced LED Lighting Approach

With the evolution of LED lighting, one topic has come more and more in the focus of the lighting industry: Human Centric Lighting (HCL). While HCL is not clearly defined, a common understanding is that this is light and lighting that supports health and the well-being of humans. Some new proposals are going beyond the approach of providing just visible light in adequate quality, but also to providing invisible radiation, UV and/or NIR that support health and well-being. Some research and the evolution of humans show clear evidence for positive effects of this kind of illumination. Scott Zimmerman, CEO at Silas, presents a new approach that adds NIR radiation to LED illumination. He explains the background of this idea, how it also improves the quality of visible light and discusses the health benefits. Read more »

Luminus’ Spectrally Tuned LED Light Sources Create New Market Opportunities

Luminus Devices, Inc. has released its third proprietary spectral technology, PerfectWhite™, which closely replicates the visual characteristics of halogen lamps (3000 K). When compared to halogen, PerfectWhite was preferred by lighting designers in testing at both Light + Building and Lightfair. Read more »

Tech-Talks Bregenz | Lp Article | Human Centric Lighting | Apr 22, 2018

Tech-Talks BREGENZ - Fred Maxik, Founder & CTO, Lighting Science Group

LED light in combination with advanced controls, and here especially IoT capabilities, opened several new options in lighting. In this context, the term Human Centric Lighting, and more recently, the term Biologically Active Light have become trendy. Fred Maxik, founder and CTO of the Lighting Science Group, who held the keynote speech at LpS 2017, recognized these opportunities in a very early stage when most other manufacturers were still struggling with the challenges of the new technology. In the interview he explains what his perception of light is and its importance in our lives. He gives insights into his philosophy and ideas on which criteria artificial lighting has to fulfill in order to live up to the promising terms „Human Centric Lighting“ and „Biologically Active Light“. Read more »

Components | LED Modules | Human Centric Lighting | Tunable White Light | Mar 30, 2018

Luminus’ Dynamic Modules Deliver Uniform Warm Dimming and Dynamic CCT Control Across Environments

Luminus Devices, Inc., has released its breakthrough warm dimming and dynamic tuning modules that deliver exceptionally uniform color and control across any environment and enable consistency from fixture-to-fixture and between linear, down, and directional luminaires that are used in the same space. Unique to the new modules are on-board IC chips that allow exceptional color quality and uniformity in hospitality, commercial and office environments. Read more »

Resources | Reports | Human Centric Lighting | Feb 27, 2018

New LRC Study Tests the Impact of Circadian Light on Alertness in Office Workers

In 2017 the Lighting Research Center (LRC) at Rensselaer Polytechnic Institute published a groundbreaking study showing that office workers who receive a robust dose of circadian-effective light experience better sleep, and lower levels of depression and stress, than those who spend their days in dim or low light levels. The team of LRC researchers, led by Dr. Mariana Figueiro and sponsored by the U.S. General Services Administration, measured existing light levels for 109 participants at five federal office buildings designed to maximize daylight availability indoors. The research team found that even in open offices with many, large windows, office workers were not receiving enough light to stimulate their circadian system during the day, due to factors such as season, cloud cover, desk orientation, and window shade position. Read more »