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Light Sources News
Luminescent Proteins Enable White LEDs without Inorganic Materials
NUREMBERG, Germany, Jan. 13, 2016 — Packaging luminescent proteins in the form of rubber, a white-producing LED eliminates the need for expensive inorganic materials. Researchers from the University of Erlangen-Nuremberg created the device, which gives off white light created through blue, green and red rubber layers covering one blue or UV LED. This renders the same effect as with traditional inorganic LEDs but at a lower cost, the researchers said. Conventional white LEDs are manufactured using inorganic materials
Envista, Independence LED Partner on Indoor Aquaponics System
HARRISBURG, Pa., Jan. 12, 2016 — Independence LED Lighting LLC and Envista Farms LLC have launched an indoor fish and vegetable farming facility that integrates their LED grow lights and aquaponics systems. Aquaponics combines aquaculture (raising fish in controlled environments)...
Incandescent Bulb Redesign Recycles Waste Radiation
CAMBRIDGE, Mass., Jan. 11, 2016 — A redesigned incandescent light bulb recycles heat radiation to emit visible light with an efficiency comparable to that of some fluorescent and LED bulbs. The ubiquitous incandescent light bulb is a high-temperature thermal emitter, producing...
Nathan Stott Named Materials Director at Quantum Materials
SAN MARCOS, Texas, Jan. 6, 2016 — Quantum Materials Corp. has named Nathan Stott director of materials as the company ramps up production in response to increased adoption of quantum dots (QDs) for displays. "As one of the foremost leaders in research on quantum dots, Nathan brings...
No Differences Seen Between Supplemental LED, HPS Lighting in Tomato Growth
WEST LAFAYETTE, Ind., Dec. 22, 2015 — A feasibility study has shown that using LEDs as greenhouse grow-lights for tomato crops does not diminish fruit quality, suggesting a potential alternative for or supplement to high-pressure sodium (HPS) lights. While favored for their...
Heliospectra Wins $54K Grant to Study LEDs for Horticulture
GOTHENBURG, Sweden, Dec. 21, 2015 — Swedish innovation agency Vinnova has awarded Heliospectra AB a research grant worth 458,000 SEK (about $54,000) to test LEDs for stimulating aroma and nutrients in plants. The goal of the research is to increase product quality for growers and...
Semiconductor Interface Emits UV Light in Presence of Water
PHILADELPHIA, Dec. 17, 2015 — Just a few molecules of water can cause a complex oxide material to emit intense UV light, a discovery that could have bearing on chemical sensors and optical computing. The phenomenon was observed by a team led by researchers at the University of...
LEDs Let You Cast Timely Shadows
Dec 17, 2015 — “It is a simple ring of light on the wall — if you point your finger into the center, your own shadow becomes the hands of this shy clock — fragile, transient but present like yourself,” Vienna-based design group...
Continuing Education for the Future of Photonics
Dec 17, 2015 — Eastern Europe, like many other regions, is putting great thought and effort into producing the next generation of photonics and optics researchers and engineers. Countries including Romania are working hard to keep up with the growing demand for...
Cladding With High-Power Diode Lasers
Dec 17, 2015 — Cladding is an additive manufacturing process used in a variety of industries for improving the surface properties of a part, or to resurface a component that has become worn through use. There are a number of different techniques for performing...
LEDs in Biology Research: From Microscopy to Optogenetics
Dec 17, 2015 — Microscopy has long held a crucial place in bioscience research, dating back to the first observations of living cells. Techniques that include the use of LEDs have been developed — and continue to be — to meet new and evolving demands...
Top Solar Stories of 2015 from Photonics.com
Dec 17, 2015 — Invisible Cloaking, Singlet Fission Set Solar on Fire in 2015 For decades researchers have been enchanted by the vast potential of photovoltaic (PV) tecnology as an alternative to fossil fuels. The rub: Solar-cell efficiencies have remained well...
Mining rare earth elements from recycled LEDs
Dec 17, 2015 — A method to mechanically separate LEDs could expedite processes to recycle them. The technique was developed by researchers in Germany at the Fraunhofer Project Group for Materials Recycling and Resource Strategies IWKS, which is under the mantle of...
Gigaphoton EUV Scanner Operates Stably for 24 Hours
OYAMA, Japan, Dec. 15, 2015 — Gigaphoton Inc. said it has achieved continuous operation and stable emission with an extreme-ultraviolet (EUV) light source scanner, a laser-produced plasma light source prototype with an output of 108 W and an average energy stability of 0.5...
Recycling: From Leftovers to LED Lights
Nov 30, 2015 — Light-emitting diodes (LEDs), such as those found ubiquitously in holiday lights, television sets and other devices, now have been fabricated from food and soft-drink waste. Researchers at the University of Utah in Salt Lake City have found a method...
Top Stories of 2015 from Photonics.com
Nov 30, 2015 — Flexible Film Creates Colors from Reflected Light June 2015 A team at the University of Central Florida’s College of Optics and Photonics (CREOL) in June developed an ultrathin, color-changing film that reflects rather than emits light. This...
Fluorescence Spectroscopy: A Powerful Method for Surface Analysis
Nov 30, 2015 — The analysis of technical surfaces is crucial for the optimization of lubrication, coating or cleaning processes, especially with regard to achieving and assuring better quality of final products. Frequently, the essential requirements for an...
PureLiFi, Lucibel Collaborate to Develop LiFi Luminaire
EDINBURGH, Scotland, Nov. 30, 2015 — Two European companies will develop and market the continent's first fully industrialized luminaire based on LiFi — high speed, bidirectional, networked and mobile wireless communications using light. The partners are PureLiFi, a light...
NKT Photonics Supplies Supercontinuum Lasers to Leica Microsystems
BIRKERØD, Denmark, Nov. 30, 2015 — Leica Microsystems GmbH has signed a 14-month supply contract with NKT Photonics A/S to deliver its SuperK EXTREME supercontinuum lasers to power the Leica TCS SP8 X confocal microscope for bioimaging. The white-light laser enables excitation at any...
Superacid Erases Thin Film Defects, Boosting Luminescence
BERKELEY, Calif., Nov. 26, 2015 — An organic superacid can smooth out defects in monolayer semiconductors, potentially making them more viable for applications such as transparent LED displays, ultrahigh-efficiency solar cells and photodetectors. The chemical treatment method...
Strobe LEDs for Ballistics Research Net Metaphase $250K Army Contract
BRISTOL, Pa., Nov. 23, 2015 — The U.S. Army has awarded Metaphase Technologies Inc. a $250,000 contract to develop and manufacture advanced high-speed LED strobed illumination equipment for ballistics research. The equipment will be used by the Army Test Center and Army Research...
Projector Would Keep Up with Moving Surfaces
SUITA, Japan, Nov. 19, 2015 — A proposed projection mapping technique would make light stick to moving objects like paint. Proposed by professors Daisuke Iwai and Kosuke Sato of Osaka University, the technique relies on a camera system to track the movements of the object being...
Osram Will Invest €3B in LED Chip Plant, R&D Projects
MUNICH, Nov. 13, 2015 — Osram Licht AG plans to invest &euro3 billion (about $3.22 billion) in LED and laser lighting technologies and applications by 2020. “Following a phase of strategic realignment, we are now launching the ‘Diamond’ innovation and...
Plessey, 8Point3 Partner on Architectural Lighting
PLYMOUTH, England, Nov. 12, 2015 — Plessey Semiconductors Ltd. has partnered with 8Point3 Energy Partners LP to develop high-efficiency architectural lighting products. High-efficiency LED architectural lighting. Courtesy of Paula Beetlestone/Plessey. The long-term commercial...
Steady Sales Growth Drives 9.5% Rise in Profits at Hamamatsu
HAMAMATSU, Japan, Nov. 10, 2015 — Growth in domestic sales and a favorable exchange rate fueled at 9.5 percent increase in earnings at Hamamatsu Photonics KK in fiscal 2015. For the fiscal year that ended Sept. 30, Hamamatsu reported profits of ¥16.6 billion (about $134.7...
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August 2024
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