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1550 nm Pulsed Laser Diode

OSI Laser Diode, Inc. (LDI) (Edison, NJ) has introduced a 1550 nm pulsed laser diode with an integrated micro lens that delivers a far‑field beam pattern. The beam pattern's divergence is equivalent in both the Fast (perpendicular) and the Slow (parallel) axes of emission. The CVLL 350‑CL90 pulsed laser diode beam divergence (FWHM) is 8 x 8 degrees. The adjusted Far Field pattern offers high coupling efficiency when used with standard spherical lens systems. LDI's new device is RoHS compliant and operates in wavelengths ranging from 1530 nm to 1580 nm, with 1550 nm typical. The operating temperature is 25 degrees C, the pulse width is typically 150 nanoseconds, frequency is 5kHz, the drive current is at 75 W, and peak power is at 22 W.

Posted in: News, Products

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White Light LED Source

Excelitas Technologies Corp. (Waltham, MA) recently announced the X-Cite® 110LED, a new compact white light LED source for fluorescence imaging applications. Using liquid light guide coupling, X‑Cite 110LED delivers broad‑spectrum optical power with exceptional field uniformity at the specimen level via manual, personal computer (PC) and TTL control. An electronic shutter provides fast, sub‑millisecond operation enabling precision in vibration‑sensitive imaging experiments. Providing excitation for DAPI, GFP, mCherry, Cy5 and other commonly used fluorophores, the X‑Cite 110LED is suitable for use on compound or stereomicroscopes. The instant LED on/off capability minimizes photobleaching and phototoxicity in specimens while offering ultra‑fast PC control and TTL triggering. www.excelitas.com

Posted in: Products

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Prosthetic Hands Give Patients A New Feel For Life

The human hand is a biomechanical marvel, but our hands are easy to take for granted because we depend on them all day long. People without all or part of their hands, however, know full well the value of what is missing as they struggle to perform even simple, everyday tasks.

Posted in: Electronics & Computers, White Papers

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Reaching the Benchmark in Secure Unmanned Vehicle Software

Security concerns currently dominate software thinking wherever sensitive or safety-critical information is potentially accessible. Embedded software is no exception. Security researcher Barnaby Jack demonstrated this in 2011 when he used a modified antenna and software to wirelessly attack and take control of Medtronic’s implantable insulin pumps. He demonstrated how such a pump could be commanded to release a fatal dose of insulin. Obviously, that vulnerability puts dependent diabetics at risk.

Posted in: Aerospace, Defense, Articles, DTB

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Submersion and Directed Flow Cooling Technology for Military Applications

As the US military shifts from boots on the ground to drones in the sky, there will be an increasing need for computing power on foreign soil, under the sea and in the air. Design objectives will be difficult to achieve with legacy technology. Electronic gear must be deployed by transport plane and require rapid setup once the destination is reached. Systems will need to be hardened to survive extreme temperatures, desert sand, salt air and pollution. Fuel logistics to serve remote locations can be difficult and expensive. Every kilowatt-hour of electricity converted to heat must be dissipated and, ideally, the waste energy should be recycled. For ground installations, it will be useful to consider distributing computing resources around rather than concentrating them at a single location that may be vulnerable to attack. Silent operation also is desirable.

Posted in: Aerospace, Defense, Articles, DTB

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Flying on Vegetation

Airlines, aircraft companies, and other stakeholders are taking the long view in developing sustainable alternatives to petroleum-based jet fuels. by Bruce Morey Fuel is expensive for airlines. According to sources interviewed for this article, fuel accounts for 30 to 50% of operating costs, depending on the size of the aircraft. And fuel prices remain volatile.

Posted in: Aerospace, Defense, Articles, DTB

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Avionics Heat Up, in a Good Way

As was apparent at Farnborough, if there is a single technology theme that today dominates how aircraft are designed, built, and operated, it is the transformational progress being made in aerospace avionics, and the human-machine interface. by Richard Gardner The common feature shared by recent aviation platforms is the high level of systems integration, and the way in which information is displayed or made accessible, allowing previously unimaginable levels of situational awareness to be available to pilots and ground controllers. This has greatly eased the pilot workload and enhanced flight safety, especially when flying in poor weather or operating in unfamiliar or hazardous terrain.

Posted in: Aerospace, Defense, Articles, DTB

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