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Accent on Applications News
Laser Scanning Helps Shrink Digital Projector
Mar 1, 2005 — Projectors are no longer large, clumsy boxes. They have slimmed down so much that some digital models fit neatly into a briefcase. They work side by side with portable and handheld computers in conference rooms, classrooms and meeting places throughout the world. The challenge in producing an ultracompact projector, such as the 2.05 × 3.69 × 9.75-in. LP120 from InFocus Corp. of Wilsonville, Ore., is in engineering the internal components to fit into the designed case. The difficulty is...
Optical Cooling Applied to Microlever
Mar 1, 2005 — A team of physicists at Ludwig Maximilians Universität in Munich, Germany, has employed a laser technique to damp the amplitude of Brownian motion in a micromechanical cantilever, cooling it from room temperature to 18 K. Theoretically, the approach...
High-Speed Imaging Probes Mysteries of Spreading Metal
Feb 1, 2005 — When Eduardo Saiz, a staff scientist at Lawrence Berkeley National Laboratory in Berkeley, Calif., points out the importance of liquid metals, he's not just talking about the mercury found in thermometers. Heated enough, metals liquefy and spread, a...
Vision System Performs License Plate Verification
Feb 1, 2005 — Border crossings, secure areas, parking facilities and even highway speed traps are places where license plates on cars may be captured by imaging systems. In Italy, a high-tech license plate reader is being used by an intelligence service, an...
Cell Phone Camera Integrates Xenon Flashlamp
Jan 1, 2005 — For cell phone manufacturer Kyocera Corp., the solution to its camera problem came in a flash. Kyocera, based in Kyoto, Japan, turned to the Fremont, Calif.-based optoelectronics division of PerkinElmer Inc. to transform the xenon flashlamps found...
Thermal Imaging Takes the Guesswork Out of Feeder Cattle Sizing
Jan 1, 2005 — In the feeder cattle industry, sizing considerations are extremely important. Sending animals to slaughter that are not the correct size can be a costly mistake for a producer, yielding lower-quality meat that consequently demands a lower price on...
Aircraft Detection System Ensures Free-Space Laser Safety
Dec 1, 2004 — As scientists continue to explore our solar system, there are increasing demands to return greater volumes of data from smaller deep-space probes. Accordingly, NASA is studying advanced strategies based on free-space laser transmissions, which offer...
Diode Lasers Enable Rapid, Strong Repairs for Combat Aircraft
Dec 1, 2004 — One of the most intractable problems confronting modern air force ground crews is the effective repair of combat aircraft skins. Typically, a crew must fix the holes caused by bullets and shrapnel in the outer skin of various parts of a number of...
Dual-Layer Coatings Target Next-Generation Optical Discs
Dec 1, 2004 — With the emergence of the Blu-ray video recording format, end users can record, rewrite and play back at least two hours of digital HDTV or more than 13 hours of standard video on a single optical disc. Currently, however, Blu-ray systems are found...
Available for Hire: Robot with 20/20
Nov 1, 2004 — High repeatability is a prerequisite in any highly functional manufacturing operation. In machine vision applications, being able to select parts off a conveyor belt in the same way with the same precision each time is vital. To achieve...
Dual-Cavity Lasers Keep Up with the Flow
Nov 1, 2004 — Fluid-flow analysis is critical in the aeronautical, automotive, biomedical, chemical, meteorological and environmental industries. Turbulence in pipes or valves can change the flow rate, which can have dire consequences. For example, an instrument...
Robot Explores Gas Mains in New York
Oct 1, 2004 — A self-propelled robot may be coming to the rescue of old, decaying gas lines running under New York and surrounding areas. With some pipes dating to the late 1800s, maintenance is a challenge made even more difficult by the city's web of...
Camera Sensors Boost Safety for Japanese Railway
Sep 1, 2004 — Passenger safety is a primary concern for railways and, although everyone is aware of the use of cameras for security, their use in train stations may not be as well-known. Cameras and monitors are put in place to help conductors see that passengers...
CO2 Laser Recycles Cathode-Ray-Tube Displays
Sep 1, 2004 — Nothing lasts forever. That's especially true for electronics equipment, which not only breaks down, but also becomes obsolete, creating a rising tide of electronic scrap, or "e-scrap." Now Proventia Automation Oy of Oulunsalo, Finland, has...
Putting Tires to the Test
Sep 1, 2004 — Eugene Shaw, president of Lake Orion, Mich.-based L-Ray, wants to make sure that when the rubber meets the road, it won't stay there. The company has introduced an optically based tire-testing system that allows manufacturers to detect anomalies....
Hybrid Laser Process Cuts Medical Stents
Aug 1, 2004 — In recent years, medical stents have revolutionized the treatment of arteriosclerosis and other vascular diseases. Designed to improve blood flow in vessels, these complex mesh tube structures are manufactured from very heat sensitive materials,...
NIR Imaging Detects Cracks in Silicon Wafers
Aug 1, 2004 — Silicon wafers are the fundamental building blocks of the microelectronics industry. The size of those used in fabricating integrated circuits has steadily increased because larger wafers yield more parts per processing step. As wafers grow to 300...
Submillimeter Camera Is Under Development
Aug 1, 2004 — There's more to the night sky than meets the naked eye. Some of the most scientifically fascinating objects and processes aren't visible at all, prompting an interest in submillimeter astronomy, in which imaging is performed at wavelengths of 200 µm...
Optical Metrology: Nanopositioning's Throughput Logjam
Jul 1, 2004 — It is not uncommon for scanning, alignment and spectroscopy applications to involve piezoelectric nanopositioning stages. One typical requirement, measurement of optical signals that vary rapidly as a function of position or time, isn't as simple as...
Excimer Laser Powers Phase-Shifting Interferometer
May 1, 2004 — An interferometer that promises to improve the characterization of phase-shift masks for use in semiconductor lithography has been developed by researchers in Germany. The instrument, which uses an ArF laser as an illumination source, takes several...
Fourier Transform Spectrometer Measures 193-nm Wavelength Standards
May 1, 2004 — Using a novel Fourier transform spectrometer optimized for ultraviolet wavelengths, Gillian Nave and Craig J. Sansonetti of the National Institute of Standards and Technology (NIST) in Gaithersburg, Md., have measured the spectra of 193-nm reference...
In Automated Proofreading, One Equals Four
May 1, 2004 — One machine eye equals four human ones. That's the formula used by manufacturers when following US Food and Drug Administration (FDA) guidelines for proofreading the inserts, labels, regulatory directives or other materials that accompany...
Computer-Controlled Machine Sees No Need for Vision
Apr 1, 2004 — With apologies to Shakespeare, Phoenix-based TLC International was recently faced with a question: To see, or not to see? Among other things, the company makes high-accuracy mechanical glass cutters used to carve out windows for cell phones,...
Light Sheets and Cameras Track Fluid Flow
Apr 1, 2004 — At Dantec Dynamics A/S in Skovlunde, Denmark, they like to go with the flow -- and to help others to do likewise. The company and its subsidiary, Dantec Dynamics Inc. of Mahwah, N.J., specialize in fluid flow measurement systems that enable airplane...
Internet Controls Color Measurement
Mar 1, 2004 — Achieving agreement among spectrophotometers is important to many industries that deal with color, including paints, textiles, plastics, paper and pharmaceuticals. If a paint manufacturer's color-measuring instrument is miscalibrated, a customer may...
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May 2024
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