Trends

Trends

Technology | Jul 29, 2010
Rensselaer researchers create world's first ideal anti-reflection coating
Rensselaer researchers create world's first ideal anti-reflection coating Troy, N.Y. -- A team of researchers from Rensselaer Polytechnic Institute has created the world’s first material that reflects virtually no light. Reporting in the March issue of Nature Photonics, they describe an optical coating made from the material that enables vastly improved control over the basic properties of light. Read more »
Technology | Jul 29, 2010
GE Global Research, TOKKI Corp. announce joint project to develop PECVD film encapsulation technology & equipment for OLED displays
NISKAYUNA, N.Y – GE Global Research, the centralized research organization for the General Electric Company (NYSE: GE) and TOKKI Corporation, a leading supplier of OLED manufacturing equipment, announced a joint agreement to develop PECVD Film Encapsulation technology and equipment for manufacturing organic electronics such as organic light emitting diode (OLED) flat panel displays. Read more »
Technology | Jul 29, 2010
Negative Refraction of Visible Light Demonstrated
For the first time, physicists have devised a way to make visible light travel in the opposite direction that it normally bends when passing from one material to another, like from air through water or glass. The phenomenon is known as negative refraction and could in principle be used to construct optical microscopes for imaging things as small as molecules, and even to create cloaking devices for rendering objects invisible. Read more »
Technology | Jul 29, 2010
Nano scientists to develop next-generation LEDs
Nanotechnology may unlock the secret for creating highly efficient next-generation LED lighting systems, and exploring its potential is the aim of several projects centered at Oak Ridge National Laboratory. Read more »
Technology | Jul 29, 2010
Low-energy LED lighting project is streets ahead
Researchers at The University of Manchester have joined forces with Dialight Lumidrives - founded by a successful former student - to develop powerful low-cost LED lighting modules that can be used in buildings and on roads. Read more »
Technology | Jul 29, 2010
Philips Lumileds Leads Response to Lighting Industry Needs with New Reliability Analysis Tools
Philips Lumileds Leads Response to Lighting Industry Needs with New Reliability Analysis Tools Philips Lumileds has introduced a new reliability analysis tool that for the first time enables lighting designers to confidently determine lifetime performance of LEDs under different operating conditions. Philips Lumileds graphical representation of reliability allows designers to understand and evaluate the impact of temperature and drive current on lumen maintenance and failure rates of LEDs. Read more »
Technology | Jul 29, 2010
New Fabrication Technique Yields Nanoscale UV LEDs
New Fabrication Technique Yields Nanoscale UV LEDs Researchers at the National Institute of Standards and Technology (NIST), in collaboration with scientists from the University of Maryland and Howard University, have developed a technique to create tiny, highly efficient light-emitting diodes (LEDs) from nanowires. Read more »
Technology | Jul 29, 2010
Philips Lumileds’ Lumiramic™ phosphor technology makes luminaire design and manufacture easier
Philips Lumileds’ Lumiramic™ phosphor technology makes luminaire design and manufacture easier Philips Lumileds today introduced a new phosphor technology, Lumiramic, developed jointly by the company’s Advanced Laboratories in San Jose and Philips Research in Europe. Lumiramic phosphor technology enables targeted production of white LEDs to specific correlated color temperatures (CCT) on the black-body curve resulting in high volume availability in the most desired color temperatures. Read more »
Technology | Jul 29, 2010
Cree Achieves 1,000 Lumens from a Single LED
Cree, Inc. (Nasdaq: CREE), a leader in LED lighting components, today announced it has demonstrated light output of more than 1,000 lumens – an amount equivalent to the output level of a standard household light bulb – from a single R&D LED. Cree’s achievement demonstrates continued leadership in the development of LEDs that can make traditional light bulbs obsolete. Read more »
Technology | Jul 29, 2010
Cree Achieves Highest NIST Verified Efficacy from a High-Power LED
Cree, Inc. (Nasdaq: CREE), a leader in LED lighting components, today announced it has achieved R&D results of 129 lumens per watt for a cool-white LED and 99 lumens per watt for a warm-white LED. These are the best results reported for packaged, high-power LEDs, and they clearly indicate that Cree is extending its lead in solid-state lighting through its continued investments in LED technology. Read more »
Technology | Jul 29, 2010
Toward pure white light: Next-generation LEDs show bright promise
Scientists in India are reporting an advance toward discovering a Holy Grail of the illumination industry — a white LED, a light-emitting diode that produces pure white light suitable for interior lighting of homes, offices and other buildings. Their study is in the Sept. 9 issue of ACS' The Journal of Physical Chemistry C, a weekly publication ("White Light from Mn2+-Doped CdS Nanocrystals: A New Approach"). Read more »
Technology | Jul 29, 2010
Argonne researcher studies what makes quantum dots blink
Argonne researcher studies what makes quantum dots blink In order to learn more about the origins of quantum dot blinking, researchers from the U.S. Department of Energy's Argonne National Laboratory, the University of Chicago and the California Institute of Technology have developed a method to characterize it on faster time scales than have previously been accessed. Read more »
Technology | Jul 29, 2010
Researchers shed light on light-emitting nanodevice - a promise for light-emitting, flexible semiconductors
Researchers shed light on light-emitting nanodevice - a promise for light-emitting, flexible semiconductors An interdisciplinary team of Cornell nanotechnology researchers has unraveled some of the fundamental physics of a material that holds promise for light-emitting, flexible semiconductors. The discovery, which involved years of perfecting a technique for building a specific type of light-emitting device, is reported in the Sept. 30 online publication of the journal Nature Materials. Read more »
Technology | Jul 29, 2010
OSRAM researchers nominated for the German President’s prize for technology and innovation
OSRAM researchers nominated for the German President’s prize for technology and innovation OSRAM, together with the Fraunhofer Institute for Applied Optics and Precision Engineering, is one of the four teams nominated for the German Future Prize. The German Future Prize, which is now in its eleventh year, will be presented by Federal President Horst Köhler in December to celebrate outstanding technical, engineering and scientific achievements that have practical applications, are marketable and create jobs. Read more »
Technology | Jul 29, 2010
German Future Prize 2007 for OSRAM’s LED Research Team
German Future Prize 2007 for OSRAM’s LED Research Team For outstanding research work on innovative lighting technologies Dr. Klaus Streubel and Dr. Stefan Illek from OSRAM Opto Semiconductors, together with Dr. Andreas Bräuer from the Fraunhofer Institute for Optics and Precision Engineering in Jena, were awarded this year’s prize for technology and innovation from the President of Germany. Read more »
Technology | Jul 28, 2010
Hybrid Semiconductors Show Zero Thermal Expansion
Hybrid Semiconductors Show Zero Thermal Expansion Thermal expansion can separate semiconducting materials from the substrate, reduce performance through changes in the electronic structure of the material or warp the delicate structures that emit laser light. Recently published research by scientists at the U.S. Department of Energy's National Renewable Energy Laboratory (NREL) and Argonne National Laboratory, and academic institutions has shed light on a semiconducting material with zero thermal expansion (ZTE). Read more »
Technology | Jul 28, 2010
Researchers Believe that New Technology Could Replace the Household Light-bulb Within Three Years
Researchers Believe that New Technology Could Replace the Household Light-bulb Within Three Years Light Emitting Diodes (LEDs), already used in electrical equipment such as computers and mobile phones, are several times more energy efficient than standard light-bulbs. However, because of their structure and material, much of the light in standard LEDs becomes trapped, reducing the brightness of the light and making them unsuitable as the main lighting source in the home. Read more »
Technology | Jul 28, 2010
Cnam Lounched Research Project on Characterization of Colour Rendering of LED Light Sources
Cnam Lounched Research Project on Characterization of Colour Rendering of LED Light Sources The CIE method applied since 1974 for defining the CRI (colour rendering index) allows the quantification of the "quality" of the light generated by artificial light sources. This index ranging from 0 to 100 defines the capacity of a light source to reproduce the various colours of objects, compared to a reference source, but does not apply correctly to LEDs. So, new studies are recommended to determine a new colour index or indices which take white light produced by LEDs into account. Read more »
Technology | Jul 28, 2010
ITRI develops alternate current LEDs
While ordinary 110/230 volt AC power must be converted to DC with a lower voltage for LED usage, at a cost and efficiency loss, Taiwan's Industrial Technology Research Institute (ITRI) has developed an alternate current light emitting diode (ACLED) with a luminous efficacy of 50lm/W, which does not need a AC-DC converter. Read more »
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