Photonics

New Drones Ensure Ideal Photographic Lighting Positions

Researchers at MIT and Cornell University will provide photographers with squadrons of small, light-equipped autonomous robots that automatically assume the right positions for photographic lighting. With the new system, the photographer indicates the direction from which the rim light should come, and the miniature helicopter flies to that side of the subject. The photographer then specifies the width of the rim as a percentage of its initial value, repeating that process until the desired effect is achieved.In the researchers' experiments, the robot helicopter was equipped with a continuous-light source, a photographic flash, and a laser rangefinder.The researchers tested their prototype in a motion-capture studio, which uses a bank of high-speed cameras to measure the position of specially designed light-reflecting tags with millimeter accuracy; several such tags were affixed to the helicopter.SourceAlso: Learn about Small-Object Detection via Fast Discrete Curvelet Transform.

Posted in: Cameras, Imaging, Photonics, Lasers & Laser Systems, Lighting, Aerospace, Aviation, Machinery & Automation, Robotics, News

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Scientists Demonstrate Data Teleportation for Secure Communications

Teleportation, a long-standing staple in the world of science fiction, has become a reality for scientists at the U.S. Army Research Laboratory in terms of battlefield data and image processing. Army Research Laboratory quantum information principal investigator Ronald Meyers and team member Keith Deacon recently demonstrated information teleportation using entangled photons.

Posted in: Electronics & Computers, Computers, Imaging, Photonics, Communications, News

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CCD and CMOS Sensors

What's best for your application? How does one select the best HD video camera and imaging sensor for professional video in applications such as life sciences, surgical imaging, microscopy, industrial imaging, and specialized point-of-view broadcasting where physical camera size is important and exceptional color video characteristics are critical?

Posted in: Features, Photonics, Articles

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Laser Scribing of Photovoltaic Materials

Solar technologies use the sun’s energy to provide heat, light, hot water, electricity, and even cooling, for homes, businesses, and industry. Despite sunlight’s significant potential for supplying energy, solar power provides less than 1% of U.S. energy needs.

Posted in: Applications, Photonics, Application Briefs

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Product of the Month: Hyperspectral Imager

SPECIM Spectral Imaging Ltd. (Oulu, Finland) has released AisaIBIS, a robust and very high spectral resolution hyperspectral imager for ground and airborne measurement of sun induced fluorescence from plants.

Posted in: Products, Photonics

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Pulsed Laser Diodes

Laser Components Canada (Hudson, NH) has set a new world record with its pulsed laser diodes at 905 nm. Peak power levels of up to 650W emitted from a small TO-18 housing and are available on a standard basis. These PLDs are based on “multi-junction” laser technology, meaning they contain several epitaxially integrated emitters with a total emitting area of 200μm x 10μm. At a pulse length of 150 ns, it is possible to achieve a peak performance of at least 70W from a single chip. The metal housing allows a higher thermal load, which permits overdriving the diode and ultimately leads to the achievement of an output of up to 650W from a stacked array design. Due to the combination of a small emitter area and an extremely high peak performance, the new 3J08 series is optimally suited for fiber coupling.

Posted in: Products, Photonics

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Miniature Full Feature HD/SDI 1080p Camera

Viewbits (San Diego, CA), the industrial cameras division of Computer Modules, Inc., are now shipping the GNAT 1080p 60™, their new mini 1080p HD camera that supports 60 frames per second. The 2.1 megapixel ultra-compact camera measures just over 1.65 inches (42 millimeters) and features a 1/3 inch progressive scan CMOS sensor, AGC (Automatic Gain Control), WDR (Wide Dynamic Range), digital zoom, and defog. It also supports brilliant DNR (Digital Noise Reduction) technologies like DNR, 3D-NR and 2D+3D.

Posted in: Products, Photonics

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