Kopin® Corporation recently launched a new family of complete plug-and-play eyepiece products for thermal imaging applications at the Defense, Security, and Sensing 2010 Symposium in Orlando, Fla. Kopin introduced standard and custom eyepiece solutions based upon the new CyberDisplay® 640M LVR microdisplay, an ultra-low-power active matrix liquid crystal display (AMLCD) with … [Read more...]
Natural Convection Cooling, Expanded I/O Packed into Rugged Control Unit
Aitech Defense Systems Inc. now offers the NightHawk RCU, a rugged, compact Intel Atom-based, self-contained control unit that weighs only 4.5 pounds. The weight reduction, combined with a slim profile and natural convection/radiation cooling that dissipates up to 22 W at +55°C in stagnant (non-flowing) air, or at up to 71°C with an optional low pressure fan or baseplate, makes … [Read more...]
Direct Spray Cooling and System-level Comparisons
Introduction As power densities of embedded electronics increase, cooling becomes a challenge especially in harsh environments. Liquid cooling is accepted as an attractive cooling method for an increasing number of applications. Direct spray is a particularly efficient form of liquid cooling that has recently been included on several manned and unmanned military platforms. This … [Read more...]
Health Assessment and Prognostics of Electronic Products: An Alternative to Traditional Reliability Prediction Methods
Introduction Traditional handbook-based reliability prediction methods for electronic products include Mil-Hdbk-217, Telcordia SR-332 (formerly Bellcore), PRISM, FIDES, CNET/RDF (European), and the Chinese GJB-299. These methods rely on analysis of failure data collected from the field and assume that the components of a system have inherent constant failure rates that are … [Read more...]
LED Thermal Standardization: A Hot Topic
Introduction The main topic of the article is how to cope with the increasing need for standardization of thermal characterization of LEDs (Light Emitting Diodes) and LED-based products (see Fig.1 showing a typical LED package). The LED-business is growing much faster than analysts predicted five years ago. Unfortunately, the progress in thermal characterization has not kept … [Read more...]
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