Researcher from the University of Miami Helps Create a Smaller, Flexible LED
University of Miami professor at the College of Engineering, Jizhou Song, has helped design an light-emitting diode (LED) light that uses an array of LEDs 100 times smaller than conventional LEDs. The new device has flexibility, maintains lower temperature and has an increased life-span over existing LEDs. The findings are published online by the "Proceedings of the National Academy of Sciences." Read more »
OLED: Record-Breaking Efficiency News from Osram - 87lm/W
Technological breakthrough at OSRAM: researchers and developers have achieved a new efficiency record in the laboratory for OLED. The laboratory sample achieves 87 lm/W, significantly exceeding the current peak value. And the most important thing: the laboratory sample is highly proximate to the product, thus paving the way for highly energy-efficient OLED products with considerably higher brightness.
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Novaled Develops World's Most Power-Efficient Fluorescent White PIN OLEDs
The European Foundation for Quality Management (EFQM) awarded Novaled “Recognized for excellence”. The company, a leader in OLED Technology and Materials, achieved the highest level with the score of 5 star in the assessment by an independent expert team.
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Osram Applies “Brilliant-Mix” LED Concept to Parathom Pro Classic A 80 LED Lamp and PrevaLED System
Warm white light with a high luminous efficacy (110 lm/W) and a color rendering index (CRI) of more than 90 are the result of the new “Brilliant-Mix” concept from OSRAM Opto Semiconductors. The intelligent color mix based on powerful Oslon SSL LEDs in EQ-White and Amber covers a broad white spectrum from 2700 to 4000 K. Depending on the required luminous flux, a different number of these LEDs can be combined to produce warm white feel-good light of high quality that will set new standards in general illumination applications.
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Cree Announces New Efficacy Record in Lab: 231 Lumen Per Watt
Cree, Inc., a market leader in LED lighting, reports another industry-best efficacy record of 231 lumens per watt for a white power LED. This result is a significant advance beyond Cree’s previous industry record and further demonstrates how Cree’s relentless innovation continues to push the boundaries of what is possible with LED lighting.
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New Method for Manufacturing the Elusive Green LED with Higher Efficacy
Researchers at Rensselaer Polytechnic Institute have developed a new method for manufacturing green-colored LEDs with greatly enhanced light output.
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Theorists from UC Santa Barbara Claim that LED Efficiency Puzzle Is Solved
Researchers at the University of California, Santa Barbara, say they’ve figured out the cause of a problem that’s made light-emitting diodes (LEDs) impractical for general lighting purposes. Their work will help engineers develop a new generation of high-performance, energy-efficient lighting that could replace incandescent and fluorescent bulbs.
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Advanced Materials Researchers "Brighten" Future of OLED Technology
Chlorine: an abundant and readily available halogen gas commonly associated with the sanitation of swimming pools and drinking water – could a one-atom thick sheet of this element revolutionize the next generation of flat-panel displays and lighting technology?
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OSRAM Opto Semiconductors Releases Application Notes for Brilliant Mix – Professional White for General Lighting
At OSRAM Opto Semiconductors, the name “Brilliant Mix” stands for a new, highly efficient concept for generating white light with a high color rendering index for general lighting applications with light-emitting diodes (LEDs).
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From the OSRAM Laboratory: Efficiency Record for Warm White
OSRAM Opto Semiconductors has set a new laboratory record of 142 lm/W for the efficiency of a warm white LED light source. With a correlated color temperature (CCT) of 2755 K the LED achieves a good color rendering index (CRI) of 81. Measurements were taken under standard conditions: room temperature and pulsed mode at an operating current density of 350 mA/mm².
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BRIDGELUX Demonstrates Dramatic Advancements in GaN-on-Silicon Technology for Solid State Lighting
Bridgelux Inc., a leading developer and manufacturer of LED lighting technologies and solutions, announced today that it has achieved a major breakthrough with the demonstration of 135 Lumens per Watt GaN-on-Silicon based LED Technology. This represents the industry’s first commercial grade performance for a Silicon-based LED.
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Jewel-Toned Organic Phosphorescent Crystals: A New Class of Light-Emitting Material
University of Michigan researcher Jinsang Kim and his colleagues have developed a new class of material that shines with phosphorescence—a property that has previously been seen only in non-organic compounds or organometallics. This pure organic compounds that glow in jewel tones could potentially lead to cheaper, more efficient and flexible display screens, among other applications.
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Voiding Defects: New Technique Makes LED Lighting More Efficient
Light-emitting diodes (LEDs) are an increasingly popular technology for use in energy-efficient lighting. Researchers from North Carolina State University have now developed a new technique that reduces defects in the gallium nitride (GaN) films used to create LEDs, making them more efficient.
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Epistar Improves Efficacy of Warm-white Light to 170 lm/W with Advanced High-voltage LED Technologies
Epistar R & D Center have successfully developed several technologies including the new transparent substrate transfer process, the fine structure for increasing photon extraction efficiency and the improvement on the current spreading uniformity. Based on these technologies, the red LED chip with efficacy of 174 lm/W at Wd of 610 nm is realized.
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Quantum Dots Are Not Dots
Researchers from the Quantum Photonics Group at DTU Fotonik in collaboration with the Niels Bohr Institute, University of Copenhagen surprise the scientific world with the discovery that light emission from solid-state photon emitters, the so-called quantum dots, is fundamentally different than hitherto believed. The new insight may find important applications as a way to improve efficiency of quantum information devices. Their findings are published on December 19th 2010 in the prestigious journal Nature Physics.
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