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Features
Time Delay Integration Speeds Up Imaging
Using a sensor architecture that permits photoelectrons generated from multiple exposures to be summed with no additive noise enables high-speed imaging under light-starved conditions. This technology has become a standard in the automated inspection of flat panel displays and is expanding to markets such as photovoltaic panel inspection. Time delay integration (TDI) imaging technology enables high-speed in-line automatic optical inspection (AOI) of high-performance displays such as those use...
Photonics Spectra, May 2012
Vision Software Enables NASA Robonaut to See
The first robotic visitor to the International Space Station performs difficult visual and tactile tasks in service to the human crew. The first humanoid robot astronaut boarded the International Space Station (ISS) in August 2011. Mission STS-133...
Photonics Spectra, May 2012
Wafer-Etching Process Brightens Future for LEDs
With far higher etch rates and per-unit cost savings, high-temperature wet etching of sapphire wafers is giving dry etching a run for its money. LED manufacturers today can choose between two very different manufacturing processes. Dry etching...
Photonics Spectra, May 2012
Connected and Smarter, Cameras Keep Watch
Digital network cameras are increasingly coming into play for surveillance and security applications. Fading fast are the days of closed-circuit television, yesterday’s video surveillance staple that displays the output of analog cameras on...
Photonics Spectra, April 2012
Conscripting Terahertz Sensors
Imaging and spectroscopy in the terahertz frequency range eventually will give troops a welcome advantage in the field. Terahertz waves are short enough to provide resolution of less than 1 mm, yet long enough to penetrate most nonmetallic...
Photonics Spectra, April 2012
Defense, Security Show Targets Baltimore
SPIE moves its DSS conference and trade show to the Charm City to maximize exposure to governmental agencies, military institutions and research organizations. At the mention of Baltimore, certain things come to mind: crab cakes, the Orioles, Camden...
Photonics Spectra, April 2012
How to Evaluate a Measurement Application’s Requirements
Precision noncontact metrology application factors can seem complicated, especially when 3-D or multispectral measurements are involved. Here’s how to ensure a robust and otherwise optimized metrology solution for your application. The...
Photonics Spectra, April 2012
Multiband Optical Filters Find Applications Outside Fluorescence
Whether used for imaging cells or astronomical bodies, multiband filters can improve signal-to-noise ratio while reducing cost, size, and setup and data-acquisition times in optical systems and instruments. In the past, most optical filters had a...
Photonics Spectra, April 2012
The Night Glows Brighter in the Near-IR
The night sky is never absolutely dark, even after removing the influence of starlight and diffused sunlight from the other side of the globe. Spectral irradiance, caused by airglow, is several times stronger in the 900- to 1700-nm band than in the...
Photonics Spectra, April 2012
Challenging Solving Improving
Winners of 2011 Prism Awards represented an intriguing mix of European and US-based small companies and established businesses. This year’s winners include a 60-laser system for inspecting train rails at high speed, a dual-laser source for...
Photonics Spectra, March 2012
European Companies Win Big
The winners of the 2011 Prism Awards for Photonics Innovation represented an intriguing mix of European and US-based small companies and established businesses. The annual international competition, sponsored by Photonics Media and SPIE, honors...
Photonics.com, March 2012
Lasers Change the Shape of the Photovoltaics Industry
Laser technology and photovoltaics manufacturing make naturally happy partners. Lasers lend themselves well to the needs of PV development such as drilling, trenching, ablation, welding and doping. Lasers may have been made for photovoltaics...
Photonics Spectra, March 2012
LED Technologies Light Up in Europe
Europe is alight with LED developments these days. In every corner of the continent, researchers and companies are pushing the technology toward dazzling new applications and capabilities. The high-brightness LED market is expected to reach $16.2...
Photonics.com, March 2012
Lessons learned from a recent laser accident
In September 2009, a graduate student working at SLAC suffered a laser eye injury while adjusting a polarizing beamsplitter being used with a femtosecond Ti:sapphire laser.1 The laser parameters were 800-nm wavelength, 100-fs pulse width, 1-kHz...
Photonics Spectra, March 2012
Multispectral Imaging Explores Harsh Environments
From the ice and snow of Antarctica to the daunting heights of the Andes Mountains or the effluent-choked waters of the Amazon, the world offers plenty of forbidding environments that beg to be investigated spectrally. Identifying the fluctuating...
Photonics Spectra, March 2012
Next-Generation CMOS Redefines Trade-Offs for Inspection
In the CMOS imaging device design process, some trade-offs are related to the physics of operating the device; others are due to practical non-idealities in the implementation of the design. To come up with an optimal CMOS imaging device design, all...
Photonics Spectra, March 2012
Particle Counting Prevents Contamination-Related Damage
Particle contamination of fluids is a huge problem in a variety of applications. Pharmaceutical products, pure water, and hydraulic and lubricating oil and fuels, for example, have strict cleanliness standards and contamination limits. In open...
Photonics.com, March 2012
Photonic Sensors Help Keep Earth Clean, Green
Spectroscopic, fiber optic sensing, and light detection and ranging (lidar) technologies increasingly are being employed in the wind and geothermal energy sectors; in making fossil fuel exploration, extraction and distribution as well as...
Photonics Spectra, March 2012
R&D Focuses on Emerging Display Technologies
OLEDs and organic electronics lead the pack in research and applications. Across Europe, research and development is focused on technologies that aren’t currently in volume production and thus are not dominated by manufacturers located...
Photonics.com, March 2012
Ultrafast Fiber Lasers Enable Unique Materials Research
Although ultrafast fiber laser technology is perhaps the catalyst that will finally allow the nascent industrial ultrafast laser market to reach its full potential, researchers also are embracing this technology for cutting-edge science. The growth...
Photonics Spectra, March 2012
Lasers Evolve to Meet the Demands of Optical Communications
Long-distance, high-speed communication depends on lasers to provide the optical power source. But this application is becoming more and more demanding, especially in terms of power consumption, price and bandwidth. With ever-increasing demands on...
Photonics Spectra, February 2012
Power Distribution Improves Industrial Laser Systems
Electrical power is vital to a laser’s operation. Power quality, availability and distribution play a vital role in the laser’s performance. Laser manufacturers must consider these factors when designing new systems. Lasers are precise...
Photonics Spectra, February 2012
Quantum Communication Is Ready for Its Close-Up
Advances in detectors and sources have gotten quantum communication ready for rollout. Photonics plays a key role in this technology, thanks to the ability to impose a quantum state on particles of light and to detect that state at a point many...
Photonics Spectra, February 2012
The Coming Market for Optical Fiber and Cable
“The market for optical fiber cable has shifted dramatically in the past five years to local deployments, away from long haul and regional.” The market for optical fiber and cable is a critical piece of the broader optical components...
Photonics Spectra, February 2012
Waveguides Need Characterization, Too
Measuring the attenuation and isolation of polymer waveguides in optical printed circuit boards will help manufacturers develop and produce better boards for optical communications. The demands of high-speed data transfer in modern computing and...
Photonics Spectra, February 2012
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