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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2016-11-18

NXP Explains Multi-Phase Driver IC LED Headlamp Lighting Control Designs

Star Li, a senior application engineer at NXP automotive solid-state lighting team explains how automotive lighting systems can be designed using multi-phase driver IC in headlamp lighting controls.
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2016-11-15

University of Bristol Study Shows LED Lights Attract Fewer Insects than Other Lights

Research team highlights the potential of LEDs in reducing the attraction of disease-carrying insects.
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2016-11-15

Texas Instrument Showcases Creation of Dynamic Power Solution for Stepper Motors, Relays and LEDs

Jose Gonzalez Torres Worldwide Product Engineer for Standard Power Products at Texas Instruments shares in this entry how to design dynamic power solution for stepper motors, relays and LEDs.
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2016-11-11

The Sweet Slumber Challenge for Soldiers on Military Deployment

Dr. David Bacon shares in this Lighting Science blog entry how soldiers deployed on missions might find sweet sleep difficult during assignments.
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2016-11-09

Fraunhofer Institute Showcases Glasses Made of Micro-OLED Displays

Data glasses mirror information to the eye without interfering with the wearer‘s vision. However, the battery runs down quickly, because the electronics consume a great amount of electricity while playing back the images. Fraunhofer researchers have developed an energy-saving display that reduces the power consumption to a fraction. The new display will be presented at the electronica trade fair in Munich from Nov. 08-11, 2016.
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2016-11-04

UCSB Finds Metal Impurities in Metal Recombination Centers Affect LED Efficiency

Using cutting-edge first-principles calculations, researchers at the University of California, Santa Barbara (UCSB) have demonstrated the mechanism by which transition metal impurities - iron in particular - can act as nonradiative recombination centers in nitride semiconductors. The work highlights that such impurities can have a detrimental impact on the efficiency of light-emitting diodes (LEDs) based on gallium nitride or indium gallium nitride.
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2016-11-03

How Lighting Affects Ground Beef Appeal in Grocery Stores

Taking Stock Contributor Samantha Kneeskern covers in this article how different lighting can make ground beef appear more appealing or dull. 
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2016-10-27

ITRI Unveils R&D Achievements in PCB Smart Manufacturing at the TPCA Show 2016

Smart manufacturing will be the key to upgrading the printed circuit board industry! ITRI exhibited its expertise in innovative PCB manufacturing technology at the TPCA Show 2016, displaying the High Aspect Ratio Maskless Fine Line Printing Technology and Additive Process for Printed Fine Line Circuits, as well as its Intelligent Power Module for Automotive Battery Control. ITRI's innovative technology will assist in propelling the value of both the upstream and downstream sectors of Taiwan's PCB industry, thereby solidifying the foundation in making the industry a trillion dollar one in the future.  
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2016-10-26

Designing 24W Power Supply for Automotive LED Lighting Systems

Martin Moss, the automotive marketing manager at Texas Instruments shares in this blog post how to create a 24W power supply for automotive LED lighting systems.
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2016-10-18

Decoding Micro-LED’s Current Driving Methods

Micro-LED a light emitting diode driven by electric currents, similar to traditional LEDs in display applications it can be driven using passive matrix or active matrix. A third current driving method is the new semi-active matrix driver, which uses a completely different method compared to existing models. Below we will introduce three different circuit designs and their basic theories.
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2016-10-11

Fraunhofer HHI and Partners Develop Plastic Based Photonic Chips for Various Applications

"Great in Optics –Small in Size!" The growing core of the “PolyPhoton- ics” Innovation Initiative will take this motto to the global communica- tions market. The project is part of the “Regional Enterprise Initiative”of the German Federal Ministry of Research. The consortium develops the value chain for the creation of a new technology platform. The Fraunho- fer Heinrich Hertz Institute HHI coordinates the project.
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2016-10-05

Dartmouth Researchers Develop VLC System that Can Transmit Data in the Dark

With the rise in wearables such as smartwatches and fitness trackers that rely on smart sensors, and the continued popularity of smartphones, smart devices are taking our country by storm. Wireless data for such devices is typically beamed through Wi-Fi or Bluetooth, yet, the new wireless communication technology of "visible light communication (VLC)," has emerged as a new option albeit with limitations due to the challenges it faces in practice, such as being easily blocked or not being able to sustain transmission when light is off. Through a new Dartmouth project called "DarkLight," researchers have developed and demonstrated for the first-time, how visible light can be used to transmit data even when the light appears dark or off. DarkLight provides a new communication primitive similar to infrared communication, however, it exploits the LED lights already around us rather than needing additional infrared emitters.
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2016-09-29

Single Photon LEDs for On-Chip Integration

​Researchers from the Graphene Flagship use layered materials to create an all-electrical quantum light emitting diodes (LED) with single-photon emission. These LEDs have potential as on-chip photon sources in quantum information applications.
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2016-09-29

Researchers Find New Form of Light

Glow-in-the-dark stickers, weird deep-sea fish, LED lightbulbs — all have forms of luminescence. In other words, instead of just reflecting light, they make their own
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2016-09-26

Holst Center Releases OLED on Ceramic Substrate

Dutch R&D institute Holst Centre (set up by imec and TNO) and American ultra-thin ceramics supplier ENrG Inc. have created the first ever ceramic-based, large-area flexible OLED. The device, manufactured on the 20-40 µm thick Thin E-Strate® ceramic substrate, promises a lifetime in excess of 10 years without the formation of blackspots. The ceramic carrier is also easy to handle and capable of withstanding the high temperatures used in display backplane manufacturing and standard sintering processes.
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2016-09-13

Scientists Develop Invisibility Cloak With Photonic Crystals

Almost as elusive as unicorns, finding practical materials for invisibility cloaking is challenging. Michigan Technological University researchers have new ideas how to solve that.
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2016-09-12

TI Releases High Efficiency Tunable White LED DC-Driver with Bluetooth Connectivity Reference Design

The TIDA-01096 TI design is a tested DC-DC LED driver sub system for tunable white LED luminaires. It is built-on a wireless SoC platform which can enable intensity adjustment (dimming) and co-related color temperature (CCT) control using any BLE smart device. Tunable white light luminaires simulate daylight conditions. With a separate warm-white and cold-white LED string, it allows CCT tuning and thereby helps achieving proper circadian stimulation. TI design TIDA-01096 provides high efficiency DC-DC conversion and allows dimming and color temperature control over more than 1:50 and 1:500 range using analog and PWM methods.
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2016-09-08

New Perovskite Research Findings Could Advance Solar Cell and LED Technology

“Promising” and “remarkable” are two words U.S. Department of Energy’s Ames Laboratory scientist Javier Vela uses to describe recent research results on organolead mixed-halide perovskites.
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2016-09-05

How to Turn Green Light Blue

The upconversion of photons allows for a more efficient use of light: Two photons are converted into a single photon having higher energy. Researchers at KIT now showed for the first time that the inner interfaces between surface-mounted metal-organic frameworks (SURMOFs) are suited perfectly for this purpose - they turned green light blue. The result, which is now being published in the Advanced Materialsjournal, opens up new opportunities for optoelectronic applications such as solar cells or LEDs. (DOI: 10.1002/adma.201601718)
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2016-09-01

Scientists Find Light Can Exist in a New Form

New research suggests that it is possible to create a new form of light by binding light to a single electron, combining the properties of both.
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2016-08-26

Fraunhofer Institute Tests OLEDs for Light Therapy

Cytocompatibility studies of organic light-emitting diodes (OLEDs) have been carried out on cell cultures for the first time at the Fraunhofer FEP to test how well OLEDs are tolerated by cells. The results offer promising prospects for the use of OLEDs in the medical field, such as in light therapy. The findings will be published in a white paper entitled “Preliminary cytocompatibility studies for encapsulated OLEDs” and likewise be presented at the 4th Industry Partners Day of the Fraunhofer FEP in Dresden on Sept. 28, 2016.
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Samsung Electronics today announced two new additions to its chip-scale package (CSP) line-up: LM101B, a 1W-class mid-power LED, and LH231B, a 5W-class high-power LED. Built with enhanced CSP technology, the new LED packages deliver industry-l... READ MORE

Osram Opto Semiconductors is expanding its existing portfolio for flash applications with a product featuring a specially developed chip sized package (CSP). With Ceramos C, Osram is following the trend for miniaturization as the new... READ MORE