2017-04-06

DOE Publishes CALiPER Snapshot on LED Industrial Luminaires

Snapshot reports use data from DOE's LED Lighting Facts product list to compare the LED performance to standard technologies, and are designed to help lighting retailers, distributors, designers, utilities, energy efficiency program sponsors, and other stakeholders understand the current state of the LED market and its trajectory.
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2017-03-31

An LED-Based Device for Imaging Radiation Induced Skin Damage

To eradicate any cancer cells that may potentially remain after surgery or chemotherapy, many breast cancer patients also undergo radiation therapy. All patients experience unfortunate side effects including skin irritation, and sometimes peeling and blistering. Patients can also develop permanent discoloration of the skin and thickening of the breast tissue months, or even years, after treatment. There is currently no method to predict the severity of these acute and late effects, and even current evaluation of these effects are based on subjective scoring.
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2017-03-30

Finnish Research Center Performs In-Moulded LED Roll-To-Roll Process

VTT Technical Research Centre of Finland has, for the first time, performed all manufacturing stages for a flexible in-moulded LED foil-in roll-to-roll process. The purpose of this demo is to prove the suitability of the technique for the highly cost-effective manufacture of products such as flexible LED displays containing printed electronics.
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2017-02-18

Challenges In OLED Research and Development III: Solution-Based Materials

Solution based materials are a different way of processing the conventional OLED materials. So conventional OLED materials are processed by vacuum thermal deposition or heating up a powder in a crucible and evaporating it onto the substrate. Solution process materials are dissolved in a variety of solvents and then they can be coated by spin coating for lab sized experiments, or ink-jet printing, or slot-die coating, or a variety of other printing methods.
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2017-02-18

Challenges In OLED Research and Development II: Light Extraction

Light extraction is the process of removing light from the device itself. So when the device emits a photon, it gets trapped in the glass, in the organic layers themselves in the metals. And the-- what our challenge is, is to get all of that light into the viewing angle. So that when somebody sees the OLED they're seeing the full efficiency of that device. Rather than having light lost in the various segments.
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2017-02-18

Challenges In OLED Research and Development: Emitters

The thing that actually converts electricity into light is the emitter itself. So there are a number of scientific challenges that are still out there in OLEDs, particularly in emitters. Even though you can go to the cell phone store and buy yourself a cell phone that's powered by OLED emitters, and active matrix OLEDs are present in cell phones and in televisions, and it leads people to think that all of the issues are solved.
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2017-02-18

OLED R&D CHALLENGES

OLEDs are based on organic (carbon-based) materials. Unlike LEDs, which are small point sources, OLEDs are made in sheets that provide a diffuse-area light source. While developing rapidly, OLED technology is less mature than LED technology, whose rapid advancement has created a moving target for OLED products in terms of lighting performance and pricing. Still, OLED manufacturers are optimistic that with a few key breakthroughs, OLEDs will offer a value proposition complementary with LED lighting approaches.
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2017-02-18

LED R&D CHALLENGES

Like any new technology, LED lighting must demonstrate a compelling value to buyers before it begins to win sizeable market share from the incumbent technologies it will replace. Over the past decade, research and development have yielded impressive improvements in the cost, color performance, light output, efficacy, reliability, lifetime, and manufacturability of LED products. Looking at LED packages specifically, the cost in dollars per kilolumen ($/klm) has been declining rapidly since 2005 at a rate of around 20% per year. As a result, LED lighting products have become competitive in almost every lighting application, but there is still room for improvement.
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2017-02-07

How Important is Right Positioning of Lighting for Wellness & Wellbeing

Take a look at this wonderful infographic which graphically illustrates how we can induce wellness in our day to day lives with correct positioning of lights.
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2017-01-11

Aalto University Researchers Create Tiny Lasers Made from Nanoparticles

Researchers at Aalto are the first to develop a plasmonic nanolaser that operates at visible light frequencies and uses so-called dark lattice modes.
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2017-01-11

Caltech Researchers Develop Economic Flat Optical Lenses

Engineers at Caltech have developed a system of flat optical lenses that can be easily mass-produced and integrated with image sensors, paving the way for cheaper and lighter cameras in everything from cell phones to medical devices.
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2017-01-10

Protecting Dark Skies from LED Lighting Impact on Humans and Wildlife

Artificial light at night is a threat to astronomical research, personal safety, and the health of both humans and wildlife. The problem is worsening with the proliferation of LED billboards and blue-rich white light LEDs as an option for street lighting. Within five years, LED technology will take over as the dominant type of outdoor lighting technology. With this in mind, scientists and lighting engineers say now is the time to implement strategies for reducing light pollution. By working together, they are identifying the best type of LED to use while suggesting actions that minimize intrusive lighting.
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2017-01-10

Unlocking the Potential of Light Materials

Bennett McIntosh for the Office of the Dean for Research at Princeton University analyzes the future of light technologies in this feature article. One hundred years ago, Italian chemist Giacomo Ciamician predicted a future society that would run on sunlight.
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2017-01-04

Engineers Create Programmable Silk-based Materials with Optical Functions

Tufts University engineers have created a new format of solids made from silk protein that can be preprogrammed with biological, chemical, or optical functions, such as mechanical components that change color with strain, deliver drugs, or respond to light, according to a paper published online this week in Proceedings of the National Academy of Sciences (PNAS).
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2017-01-04

Carnegie Researchers Find Germinium Can Function as Better IR Detector When under Pressure

Germanium may not be a household name like silicon, its group-mate on the periodic table, but it has great potential for use in next-generation electronics and energy technology.
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2017-01-03

GaN Transistors Broaden Horizon for High-Speed Motor Drive Applications

Zoé Pál Bőle from Texas Instrument (TI) shares in this blog entry the benefits of using GaN trasnsitors for high-speed motor drive applications compared to conventional silicon transistor technologies.
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2016-12-29

Small Amounts of Impurities in Vacuum Affect OLED Lifetime

Reproducibility is a necessity for science but has often eluded researchers studying the lifetime of organic light-emitting diodes (OLEDs). Recent research from Japan sheds new light on why: impurities present in the vacuum chamber during fabrication but in amounts so small that they are easily overlooked.
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2016-12-21

UCF Latest IR Detector Research Receives US $1.3M DARPA Grant

The Defense Advanced Research Projects Agency has awarded a US $1.3 million grant to a team led by UCF researcher Debashis Chanda to fund the development of a next-generation infrared detector that could be used in fields as varied as night vision, meteorology and space exploration.
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2016-12-19

Tyndall University Researchers Light the Way for Quantum Computing

Quantum computing is heralded as the next revolution in terms of global computing. Google, Intel and IBM are just some of the big names investing millions currently in the field of quantum computing which will enable faster, more efficient computing required to power the requirements of our future computing needs.
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2016-12-13

ANU Creates Nanocrystal Material to Redesign Night-vision Glasses

ANU scientists have designed a nano crystal around 500 times smaller than a human hair that turns darkness into visible light and can be used to create light-weight night-vision glasses.
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2016-12-09

NASA Readies Space Gardening Techniques for Multiple Harvests in 2017

For a mid-afternoon snack, NASA astronaut Shane Kimbrough cut some of the "Outredgeous" Red Romaine lettuce leaves he nurtured during the past month aboard the International Space Station as part of a gardening harvest technique termed “cut-and-come-again.”
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2016-12-09

Five Compelling Reasons to Make The Switch to LED in 2017

Incandescent globes have long been a staple of all buildings, lighting our way at all hours of the day. Unfortunately, incandescent bulbs are also terribly inefficient and their lifespan makes them an unsustainable choice for your office. Costs build up when using incandescent or fluorescent bulbs as light providers, and the wastage your company produces is also significant when compared to greener companies. What all this points to is a choice, either becoming a greener company or falling further and further behind modern company standards. Maybe it’s time to get commercial LED lighting installed, or solar panels, or rain water tanks for use in company toilets. We have assembled a list of five compelling reasons to make the switch in 2017.
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2016-12-08

Flickering LED Light Treatment can Pave Way to Alzhemer Cure

Using LED lights flickering at a specific frequency, MIT researchers have shown that they can substantially reduce the beta amyloid plaques seen in Alzheimer’s disease, in the visual cortex of mice.
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2016-12-08

Researchers Find New GaN Properties Suitable for Wide-Range of Applications

Gallium nitride (GaN) has emerged as one of the most important and widely used semiconducting materials. Its optoelectronic and mechanical properties make it ideal for a variety of applications, including light-emitting diodes (LEDs), high-temperature transistors, sensors and biocompatible electronic implants in humans.
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2016-12-07

Singaporean Researchers Make Silicon-based Micro-Lasers

Combining silicon with a light-producing semiconductor may help develop micrometer-scale lasers, shows Doris Keh-Ting Ng and her colleagues from the A*STAR Data Storage Institute1.
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2016-12-07

Climate Cool Ceiling Panels

Poorly maintained air conditioning systems cause mold or other bacteria to spread; they often also generate drafts and are costly to operate. An alternative technology that uses ceiling panels covered in special heat-conducting film operates well below the dew point. Designed by Fraunhofer researchers, the system offers hygienic cooling even in tropical climates, and uses up to 70% less energy. The multifunctional system will be launched at the BAU trade fair from January 16-21, 2017 as part of the Fraunhofer Building Innovation Alliance’s special show, “Fraunhofer CityLaboratory – creating living spaces” (Hall C2, Booth 538).
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2016-12-06

Fulham Whitepaper Demystifies LED Drivers

As a means of demystifying LED driver technology Fulham, the lighting component and electronics specialist, has produced a technical white paper on the subject.
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2016-12-06

Researchers Find New LED Display Lights Can Improve Taste of Milk

New LED lights that are being installed in milk display cases across the country do more than just reduce energy bills -- they also help milk taste better, Virginia Tech researchers have found.
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2016-11-22

Scientists Demonstrate Carbon Nanotubes Interaction with Light and Matter

With their research on nanomaterials for optoelectronics, scientists from Heidelberg University and the University of St Andrews (Scotland) have succeeded for the first time to demonstrate a strong interaction of light and matter in semiconducting carbon nanotubes. Such strong light-matter coupling is an important step towards realizing new light sources, such as electrically pumped lasers based on organic semiconductors. They would be, amongst other things, important for applications in telecommunications. These results are the outcome of a cooperation between Prof. Dr Jana Zaumseil (Heidelberg) and Prof. Dr Malte Gather (St Andrews), and have been published in “Nature Communications”.
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2016-11-18

Foil LED Technology Offer Better UV Sterilization Designs

For the first time, researchers have created light-emitting diodes (LEDs) on lightweight flexible metal foil.
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Lumileds introduced the LUXEON MX, a multi-die emitter that delivers industry leading efficiency and flux for outdoor fixtures and high bay lighting applications. Lighting fixtures benefit from the emitter’s 1,200 lumen, 150 lm/W ef... READ MORE

The trading portfolio of IMM Photonics has been expanded in the segment Fabry-Perot laser diodes to include a 830 nanometer (nm) version by the Japanese manufacturer QD-Laser.

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