Photonics/Optics

Galvo and Controller Combination

Aerotech’s (Pittsburgh, PA) Nmark AGV-HP advanced galvanometers use innovative optical feedback technology to increase resolution to greater than 24 bits. Both the standard AGV and higher performance AGV-HP series scanners may be directly driven by Aerotech’s Nmark CLS galvo controller, which offers a full suite of advanced application tools that include Position Synchronized Output (PSO) and Infinite Field of View (IFOV). The AGV is available with 10, 14, and 20mm apertures with standard F-Theta lens interfaces to provide maximum application flexibility. The AGV can be configured to accommodate 1064, 532, and 355nm wavelengths, with other wavelengths available upon request.

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Tunable Lenses

Edmund Optics (EO) (Barrington, NJ) has introduced new CMount Focus-Tunable Lenses. When a control current is applied to the lens, its focal range is adjusted from +80 to +200mm. This variable tuning range - the ability to adjust focal length - allows the user to replace multi-lens focus or zoom systems, saving space, time and cost. In order to shift the focal range, any 12mm diameter plano-convex (PCX) or plano-concave (PCV) lens with an edge thickness of less than 4.7mm may be used as an offset lens. For imaging applications in the visible (VIS) spectrum, a C-Mount Focus-Tunable Lens with a pre-mounted -150mm BK7 PCV lens is available. Near infrared (NIR) coating is also available. For planning and specification purposes, prescription data is also available for the user to model the effect an offset lens will have on the overall focal range.

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Determining Key Isotopic Ratios In The Field

On August 6th, 2012 the automatic Mars Science Laboratory rover named Curiosity landed on Mars. One of the scientific instruments on board is ChemCam, which has a pulsed laser capable of ablating a focused spot on a remote sample to create a glowing plasma plume of target material. Light from plasma is collected by rover’s telescope on a mast, and the optical spectra are then analyzed by an internal spectrometer. ChemCam can take thousands of spectra per day from a distance of about 7 meters, thus making chemical analyses on the surface of Mars with unprecedented speed. Operationally, the ChemCam data facilitates decisions of where the rover should be driven.

Posted in: Articles, Features, Photonics

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Designing Rugged In-Vehicle Displays

Historically, the displays deployed in military vehicles have been simple monitors, acting as an interface to an onboard system. That’s no longer good enough. As military vehicles are equipped with more and more technology, space — not to mention weight and power — is becoming scarce. Mono-functional systems are out; multifunctional systems are in, whether you’re designing new vehicles or retrofitting existing vehicles.

Posted in: Application Briefs, Applications, Photonics

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Photovoltaic Simulators

AMETEK Programmable Power (San Diego, CA) has expanded its Elgar TerraSAS ™ line with the ETS Series Standalone Photovoltaic (PV) Simulator. The new series includes three models for testing PV inverters across a wide spectrum of applications. ETS 80 tests micro-inverters or DC optimizers up to 80 VDC Voc. ETS 600 can test string inverters that contain transformer isolation up to 600 VDC Voc. ETS 1000 is for non-isolated string inverters up to 1000 VDC Voc. The ETS 600 and ETS 1000 are 3U rack units, while the ETS 80 comes in a 1U package.

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Multispectral Optical Filter Assembly

Deposition Sciences, Inc. (DSI®) (Santa Rosa, CA) announced an expansion of its optical components line, the new Multispectral Optical Filter Assemblies, orMOFAs. DSI’s advanced optical assembly technology combines individually-coated multispectral filter substrates into an array assembly. The new assemblies range from two-filter stacks to eight-filter stacks, or more. For added flexibility, the MOFAs can employ a variety of adhesives including space-qualified adhesives.

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LED Light Engines

Innovations in Optics, Inc. (Woburn, MA) now offers a new generation of ultra-high brightness LED light engines with integrated fluorescence excitation filters for use with many types of life science instruments. LumiBright LE light engines use state-of-theart LED technology and interference filters with hard dielectric coatings to meet the most demanding requirements involving fluorescence excitation in life science instrumentation and medical illumination.

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