Imaging

Bringing New Vision to Laser Material Processing Systems

The use of modern laser technology has become standard in industrial manufacturing thanks to its speed, accuracy and effectiveness. Lasers are used to engrave parts, electronic printed circuit boards or chip cards. They perforate packaging; structure semiconductor wafers; drill, cut and weld plastics or metals; and create highly complex structures via 3D printing.

Posted in: Articles, Imaging, Machine Vision, Lasers & Laser Systems, Photonics, Lasers, Additive manufacturing, Manufacturing equipment and machinery
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Choosing a Light and Color Measurement System for LEDs

LED-based lighting and display systems are becoming increasingly popular due to their low cost, flexibility, and efficiency. Measuring the light and color output of LEDs is, therefore, becoming more important as their performance is compared to and evaluated against traditional technologies. In addition, inherent performance variations from device to device must be understood and controlled.

Posted in: Application Briefs, Imaging, LEDs, Lighting, Photonics, Measurements, Light emitting diodes (LEDs), Performance tests
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3D Imaging Reveals Sub-surface Battery Flaws

Ed Barnard

Traditional imaging technologies have been used to investigate overall solar efficiency, but many of the methods only offer surface views. A new – and “exciting” – ultra-fast laser technique developed at the Department of Energy's Lawrence Berkeley National Laboratory provides a deeper look and maps a solar cell in three dimensions.

Posted in: Articles, Imaging, Photonics, Batteries, Imaging and visualization, Lasers, Solar energy, Performance tests
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Autonomous Vehicles Open Up New Roads for LIDAR Growth

Laser range-finding, or LIDAR, is a way of measuring distance, directly analogous to radar except using radiation in the near infrared range of the electromagnetic spectrum rather than the radio waves used in radar. LIDAR techniques are used for a variety of final applications including terrain-mapping for geology, urban planning and archaeology; distance measurement for surveying, golf, hunting, military applications, and docking of large ships; and speed measurement for traffic monitoring and speed limit enforcement.

Posted in: Articles, Imaging, Lasers & Laser Systems, Photonics, Measurements, Lidar, Autonomous vehicles
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Miniature Camera Mimics Eagle's Eye

A tiny, 3D-printed “eagle-eye” camera developed at the University of Stuttgart in Germany mimics the vision of some of nature's sharpest predators. The “foveated” imaging system, named after the fovea part of the eye, provides a high central acuity that could support new applications in optical sensors, endoscopy, and surveillance drones.

Posted in: Application Briefs, Cameras, Imaging, Photonics, Imaging and visualization, Biomechanics
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New Products: May 2017 Photonics & Imaging Technology

1x4 Pulsed Laser Diode Array

Excelitas Technologies® Corp. (Waltham, MA) has introduced a 1x4 Pulsed Laser Diode Array for LiDAR applications. The new laser array combines Excelitas’ high-efficiency, multi-cavity laser chip technology with small form-factor surface mount device (SMD) packaging for applications requiring high reliability, such as autonomous vehicles and drones.

Posted in: Products, Imaging, Photonics
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What’s New on TechBriefs.com: Asteroid Detection, Blood-Pressure Monitoring, and Breaking the ‘Bandwidth Bottleneck’

Did you know that a 1-kilometer-wide asteroid flew past the Earth this month? Or that a chip-scale device provides broader bandwidth instantaneously to more users? Or that a new "Bold Band" offers a wearable way to monitor blood pressure? Make sure you've seen the latest stories on TechBriefs.com.

Posted in: News, Aerospace, Imaging, Patient Monitoring, Photonics
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Fabrication of Freeform Optics

Freeform surfaces on optical components have become an important design tool for optical designers. Non-rotationally symmetric optical surfaces have made solving complex optical problems easier. The manufacturing and testing of these surfaces has been the technical hurdle in freeform optic’s wide-spread use. Computer Numerically Controlled (CNC) optics manufacturing technology has made the fabrication of optical components more deterministic and streamlined for traditional optics and aspheres. Optimax has developed a robust freeform optical fabrication CNC process that includes generation, high speed VIBE polishing, sub-aperture figure correction, surface smoothing and testing of freeform surfaces. Metrology of freeform surface is currently achieved with coordinate measurement machines (CMM) for lower resolution and interferometry with computer generated holograms (CGH) for high resolution irregularity measurements.

Posted in: White Papers, Imaging, Optics, Photonics, Test & Measurement
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How NASA Tracks the Asteroids Flying by Earth

On Wednesday, April 19, an asteroid missed Earth by 1.1 million miles – a distance closer than you might think. This week, Tech Briefs spoke with NASA’s Planetary Defense Officer about the efforts behind tracking this type of flyby.

Posted in: News, News, Aeronautics, Imaging
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Is Pluto a Planet? Scientists Seek New Definition

In 2006, the International Astronomical Union demoted Pluto to "non-planet" status. Johns Hopkins University scientist Kirby Runyon led a group of six researchers to draft a new definition of "planet" — one that includes more than 100 other celestial bodies, including Pluto. The proposal was presented at the Lunar and Planetary Science Conference, hosted in Houston, Texas on March 21.

Posted in: News, Cameras, Imaging, Physical Sciences, Propulsion
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