Technologies Archive

Technology | Jul 28, 2010
E-Static Shadows: OSRAM LED in Electronic Textiles
E-Static Shadows: OSRAM LED in Electronic Textiles "E-Static Shadows" is an experimental cross-disciplinary research project by designer and researcher Dr. Zane Berzina and architect Jackson Tan from insquarelab in collaboration with TITV – Textile Research Institute Greiz in Thüringen, Germany, the Computing Department at Goldsmiths and Queen Mary University of London. Read more »
Technology | Jul 28, 2010
LUXEON® Rebel Lumen Maintenance Exceeds ENERGY STAR® Guidelines
Philips Lumileds’ announced today that test data for its LUXEON Rebel LEDs shows performance that exceeds ENERGY STAR® guidelines intended to ensure quality solid-state luminaire development. The data shows that LUXEON Rebel LEDs have average lumen maintenance of 99% after 6,000 hours, far surpassing the 91.8% ENERGY STAR requirements for residential fixtures as well as available published data for other power LEDs. Read more »
Technology | Jul 28, 2010
Compact 72-W Neutral White and 18-W Warm White LED Emitter with Record Lumen Efficiency
Optoelectronics Packaging & Materials Labs at the University of California developed a multi-chip integrated compact white LED single emitter with an import power of 72,84W, producing a total of 6543 lm at a CCT of 4455K that has reached a record lumen efficiency of 89,8 lm/W, and a multi-chip integrated warm white LED compact single emitter with an input power of 18,62W, producing a total of 1444lm at a CRI of 91,3 and a CCT of 3928K that has reached a record lumen efficiency of 77,4lm/W, according to the reports issued by the US National Institute of Standards and Technology on December 8, 2008. Read more »
Technology | Jul 28, 2010
SRI and SDK Announce Breakthrough Performance in Organic Light-Emitting Diode (OLED) Devices for SSL Applications
SRI and SDK Announce Breakthrough Performance in Organic Light-Emitting Diode (OLED) Devices for SSL Applications SRI International, an independent nonprofit research institute, and Showa Denko K.K. (SDK), a Japan-based chemical industry company in partnership with Itochu Plastics Inc. (CIPS), have achieved record-breaking results using SRI’s new cavity organic light-emitting diode (COLED) technology and SDK’s light-emitting polymers to produce a highly efficient light source that could one day replace incandescent and fluorescent light bulbs. Read more »
Technology | Jul 28, 2010
OSRAM Study: LED Life-Cycle Assessment
OSRAM Study: LED Life-Cycle Assessment An OSRAM Opto Semiconductors` study on the life-cycle assessment (LCA) of LED lamps shows the latest generation of lamps achieves a very high score for environmental friendliness. Read more »
Technology | Jul 28, 2010
Ultrathin LEDs Create New Classes of Lighting and Display Systems
Ultrathin LEDs Create New Classes of Lighting and Display Systems A new process for creating ultrathin, ultrasmall inorganic light-emitting diodes (LEDs) and assembling them into large arrays offers new classes of lighting and display systems with interesting properties, such as see-through construction and mechanical flexibility, that would be impossible to achieve with existing technologies. Read more »
Technology | Jul 28, 2010
OSRAM LED Produces Warm White Light with High Efficiency and True Colors
OSRAM LED Produces Warm White Light with High Efficiency and True Colors OSRAM Opto Semiconductors has developed an LED that offers high efficiency, excellent color rendering and a pleasant warm white light. The prototype is the first to offer the three important properties that together are essential for general illumination applications, namely a color temperature of 3000 K, a color rendering index of 82 and an efficiency of 104 lm/W. Read more »
Technology | Jul 28, 2010
3M Claims Record Efficacy for Green LEDs
3M Claims Record Efficacy for Green LEDs Green LED | November 24, 2009 Scientists at 3M have unveiLed a color-conversion technology that doubles the efficiency of green LEDs, compared with currently-available green emitters. The St. Paul, Minnesota-based company says that the technology could lead to accelerated adoption of LEDs in demanding applications such as LCD display backlights and pico-projectors. Read more »
White Paper | Technology | Jul 28, 2010
Cree Study Shows LED Lighting is Best Bet for Energy Efficiency
Cree Study Shows LED Lighting is Best Bet for Energy Efficiency A new report on the life-cycle energy usage of energy-efficient lighting by Cree, Inc. shows that LED lighting products are now more efficient than traditional lighting products when compared across the high-volume applications of recessed downlighting and display spotlighting. Evaluating light fixtures and applications, the white paper’s energy comparisons demonstrate that LEDs offer clear advantages in terms of energy costs and environmental impact over traditional lighting such as incandescent, halogen and compact fluorescent bulbs. Read more »
Technology | Jul 28, 2010
Cree Breaks 200 Lumen Per Watt Efficacy Barrier
Cree, Inc. (Nasdaq: CREE), a market leader in LED lighting, announces another industry-best reported efficacy record of 208 lumens per watt for a white power LED. This R&D result passes a significant milestone within the solid-state lighting industry as well as demonstrates Cree’s relentless drive to increase the performance of its LEDs. Read more »
Technology | Jul 28, 2010
White OLED Outlook Brightens with Efficiency Breakthrough
White OLED Outlook Brightens with Efficiency Breakthrough GE Global Research, the technology development arm for the General Electric Company (NYSE: GE), GE Lighting and Konica Minolta (KM) have achieved a major breakthrough that brings the companies closer to making high-efficiency organic light-emitting diode (OLED) lighting devices a reality. GE and KM scientists have demonstrated illumination-quality white OLEDs using “solution-coatable” materials that are essential for producing OLEDs at a low cost. Read more »
Technology | Jul 28, 2010
Prototype of a Red Golden Dragon Plus LED Sets New Record
Prototype of a Red Golden Dragon Plus LED Sets New Record Developers at OSRAM Opto Semiconductors have succeeded in increasing the efficiency of red thin-film LEDs by 30% – a new record. The latest generation of thin-film chips benefit from an optimized chip platform which has potential for further improvements. This boost in efficiency is opening up new LED applications in general illumination, in projection and in the industrial sector. Read more »
Technology | Jul 16, 2010
LED – Cooling and Thermal Management
LED – Cooling and Thermal Management As we all know, the life span of an LED depends on the semi-conductor material used as well as the current/heat relationship. The light output of the LED becomes weaker and weaker and once it reaches 50% of its initial value, the life expectancy of the LED has, by definition, been reached. A life span of a few hundred and up to 100,000 hours is possible, but only when avoiding high temperatures which drastically reduce the length of the LED’s life. Read more »
Technology | Jul 13, 2010
The Future of OLED Lighting
The Future of OLED Lighting Organic light-emitting diodes (OLEDs) are currently a hot topic in the lighting industry. With major companies such as Osram, Philips, and General Electric displaying prototype products and announcing commercial availability of OLED panels for prototype lighting applications, it is difficult to ignore the industry buzz: “OLEDs are the future of lighting!” Read more »
Technology | Dec 30, 1969
Measurement of LEDs
Measurement of LEDs Various new types of light emitting diodes (LEDs) are being developed and introduced for general illumination and other applications, and there are increasing needs for accurate measurements of various optical parameters of LEDs. Traditional standard lamps do not meet the calibration needs for LED measurements as LEDs differ substantially from traditional lamps in terms of physical sizes, flux levels, spectra, and spatial intensity distributions. Read more »
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