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(38,291 articles)
Popular News
Cognex Re-Files Lawsuit Against Lemelson Partnership
Oct 1, 1999 — NATICK, Mass., Oct. 1 -- Cognex Corp. has re-filed its lawsuit against the Lemelson Medical, Educational & Research Foundation Limited Partnership. The venue for the case has changed to the US District Court in Reno, Nev., in the wake of US District Court Judge Nathaniel M. Gorton's decision that the Lemelson Partnership could not be sued in Massachusetts due to insufficient business connections in the state. Massachusetts was the site of the original September 1998 filing of Cognex's...
Advanced Optics Electronics BuysInterest in Fiber Switch Maker
Oct 1, 1999 — ALBUQUERQUE, N.M., Oct. 1 -- Advanced Optics Electronics Inc. has purchased a minority interest in WIZARD Technologies Inc. (WTI), a New Mexico-based developer of fiber optic switches. WTI estimates the market for fiber optic switches to exceed...
Biolase Obtains FDA Clearances for New Diode Lasers
Oct 1, 1999 — SAN CLEMENTE, Calif., Oct. 1 -- Biolase Technology Inc. has obtained clearances from the US Food and Drug Administration to market the company's new lightweight diode lasers, TwiLite and HyLite, for use in dental cosmetic and soft tissue procedures....
Airborne Laser Window Nears Completion
Oct 1, 1999 — Pittsburgh’s Contraves Brashear Systems LP has accepted the conformal window for the US Air Force’s Airborne Laser Program. The company will polish, coat and install the 340-lb, 1.8-m-diameter window in a composite turret ball from...
Air Force Telescope Open to Researchers
Oct 1, 1999 — The director of the US Air Force’s Office of Scientific Research, Joseph Janni, announced that civilian astronomers will be allowed to use its 3.67-m telescope on Haleakala in Maui, Hawaii, under a two-year joint program with the National...
Algorithms Improve Spectral Imaging
Oct 1, 1999 — An imaging spectrometer in an airplane or satellite can picture the Earth’s surface while simultaneously detecting the broad range of radiation wavelengths that emanate from each pixel. More than 40 models of imaging spectrometers are in use...
Algorithms Improve Spectral Imaging
GÖTTINGEN, Germany — A team of researchers at the Max Planck Institute for Biophysical Chemistry broke the theoretical minimum for resolution by a focusing light microscope. More than 100 years ago, Ernst Abbe laid down the law that the wave nature of light limits...
Lasers Break an Optical Barrier
GÖTTINGEN, Germany — A team of researchers at the Max Planck Institute for Biophysical Chemistry broke the theoretical minimum for resolution by a focusing light microscope. More than 100 years ago, Ernst Abbe laid down the law that the wave nature of light limits...
Semiconductors Deposited in Fiber Preforms
Oct 1, 1999 — Researchers at Syracuse University have developed a technique that could lead to the production of more efficient optical fiber devices. They employed optical deposition to create fiber preforms with a semiconductor layer at the core-cladding...
Dense Wavelength Division Multiplexing Components Promise 1.7 Tb/s Transmission
Oct 1, 1999 — Researchers at Fujitsu Laboratory Ltd. in Richardson, Texas, a division of Fujitsu Network Communications Inc., have developed components that the company says will enable its 320-Gb/s Flashwave dense wavelength division multiplexing system to...
Camera Images the Unseen Eclipse
Oct 1, 1999 — A complementary metal oxide semiconductor (CMOS) video camera attached to a 400-mm reflector telescope produced black-and-white images of the Aug. 11 total solar eclipse with details never before seen or recorded. The device, developed by the...
Multimode Fiber Transmits at 10 Gb/s and over 3000 m
Oct 1, 1999 — Separate tests performed on the 50-µm InfiniCor multimode fiber, which is produced by Corning Inc. of Corning, N.Y., demonstrated serial transmission at 10 Gb/s over 600 m and at Gigabit Ethernet speeds over 3000 m. The InfiniCor fiber is...
FireMapper Gets Set for Flight
Oct 1, 1999 — The FireMapper multispectral radiometer is being prepared for airborne deployment next year by the US Department of Agriculture’s Forestry Service. The device, manufactured by Space Instruments Inc. of Encinitas, Calif., monitors long-wave...
2-m Telescope Takes Its First Look
Oct 1, 1999 — EOS Technologies Inc. (EOST) in Tucson, Ariz., hosted a "first light" party to demonstrate the research potential of its 2-m-aperture telescope before its permanent installation next year. The instrument is destined for an observatory on Mount...
Laser Optics Improve Gasoline Yield
ARGONNE, Ill. — Fluid catalytic cracking of oil feedstocks produces a large portion of the US gasoline supply. This process relies on dispersion-steam-assisted nozzles to atomize the feedstocks. Thus, optimizing nozzle properties, including the degree of...
Interferometer Seeks Gravity Waves
Oct 1, 1999 — A team of researchers at the California Institute of Technology in Pasadena used a laser interferometer to look for the gravity waves that Einstein predicted in his general theory of relativity. The instrument is a precursor to the national Laser...
Green Organic LED Shows High Efficiency
LOS ANGELES -- LOS ANGELES -- An organic light-emitting diode (LED) that relies on electrophosphorescence may prove a breakthrough in organic LED efficiency, with quantum and power efficiencies reaching 8 percent and 31 lm/W, respectively. The green device,...
Optical Holes Produce Better Memories
PHILADELPHIA — With today’s technology, compact discs hold about 1 bit of information per square micron. Associate professor of physics Zameer Hasan and colleagues at Temple University have devised a way to increase this storage capacity by three orders of...
Hybrid Laser Expands Imaging Range
SAN DIEGO — There is potential for a laser that simultaneously produces output at multiple wavelengths in remote sensing, environmental testing and biomedical imaging. Such a device would be a boon for the military as well; applications such as surveillance and...
Best Lasers May Be Misanthropes
ALBUQUERQUE, N.M. -- ALBUQUERQUE, N.M. -- Quantum dots are antisocial, and that’s good news for Sandia National Laboratory researchers who want to make better lasers. Quantum dots, atomic islands of material that appear on semiconductor thin films, can produce...
Laser Missile-Jamming System Passes Tests
Oct 1, 1999 — A laser-based directional infrared countermeasures system that was demonstrated by Northrop Grumman Corp.’s Electronic Systems and Sensors Sector in Rolling Meadows, Ill., passed 10 hours of flight tests that simulated five missile defense...
MOEMS Advance
MAINZ, Germany -- MAINZ, Germany -- Researchers discussed developments and obstacles at the Third International Conference on Micro Opto Electro Mechanical Systems (MOEMS). Organized by the Institut fur Mikrotechnik Mainz GmbH, it highlighted growing applications,...
Monolithic Mosaic Gratings Are Ready for Subaru Telescope
Oct 1, 1999 — Richardson Grating Laboratory of Rochester, N.Y., completed the production of three mosaic diffraction gratings for the recently constructed Subaru telescope atop Mauna Kea in Hawaii. The monolithic gratings will operate in the UV, VIS and near-IR...
Optoelectronic Devices Go Organic
CAMBRIDGE, UK -- CAMBRIDGE, UK -- Light-emitting diodes made from organic polymers were first developed at Cavendish Laboratory a decade ago. Now researchers at Cavendish have taken this technology a step further. The light that is emitted from these devices is...
Lasers Jump-Start Catalytic Research
BERLIN — How do you study chemical processes that last only an average of 100 femtoseconds? And how do you ensure that you are observing just the effects of that particular activity?Researchers at the Fritz Haber Institute of the Max Planck Society solved...
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