news digest ♦ LEDs


silicone covering. The typical 145 degree field of view also demonstrates good colour-over-angle characteristics as a result of the ReadyWhite technology.


Mark Tuttle, general manager for SemiLEDs Optoelectronics, said: “Our unique Chip Scale Package brings all the benefits of SemiLEDs’ rugged EF Series FlipChip architecture to an extremely compact emitter, which is simple to integrate using standard tape and reel surface mount manufacturing. This innovation reduces final component cost up to 50 percent, with a packaging cost reduction of up to 80 percent over conventional packaging. EC Series products, such as the EC- W1414, enable system-integrators and luminaire manufacturers a direct path to a highly cost effective solution on a per-lumen basis now, with additional viewing angles and die sizes under development.”


The EC is rated for input power of up to 3W and is a fully packaged white emitter SMD component, ready for surface mounting on any board level module or COB application. The compact chip scale package can produce outputs of up to 300 lumens at 1A. The SemiLEDs EC series is available in standard ReadyWhite correlated colour temperatures ranging from 2700K to 10,000K with colour rendering indices up to 90 minimum.


While useful for creating compact multi-die white packaged LEDs, the ReadyMount products will provide particular benefit to light-engine and luminaire manufacturers who have previously had to rely exclusively upon packaged die solutions, says the company.


Space Station crew can do bio experiments thanks to SETi’s UV LEDS


High power LEDs decontaminate surfaces, liquids and air inside experiment ‘glovebox’


Conducting science experiments in space aboard the International Space Station, presents many challenges from working in a microgravity. But thanks to the Microgravity Science Glovebox (MSG), those aboard the space station have been able to safely conduct their experiments since 2004.


76 www.compoundsemiconductor.net Issue VI 2014


Over the past ten years, the MSG has been put to good use on a wide range of research programs but now, thanks to the activation of a new decontamination system inside the MSG, crew members can safely perform biological research.


Developed and built by Teledyne Brown Engineering (TBE) the decontamination system makes use of high-power Uvclean ultraviolet LEDs developed by Sensor Electronic Technology Inc (SETi) in part through the DARPA Compact Mid- Ultraviolet Technology (CMUVT) program.


Above: NASA astronaut Rick Mastracchio, Expedition 38 flight engineer, prepares to test the ultraviolet light decontamination hardware. Image Credit: NASA


The UV LEDs have the power to sanitise the surfaces, liquids and air inside the MSG in a matter of minutes and are used before and after the experiments are conducted for the safety of the crew.


The upgraded MSG with TBE›s decontamination system and SETi›s UV LEDs will allow for a much wider range of microgravity experiments and will be available to all biological payloads that operate in the MSG with a concern about contamination.


«Our products passed space flight qualification in the past», commented Remis Gaska, president and CEO of SETi, «However, this is the first space launch, installation and successful testing of our devices in the orbit. This demonstrates the level of maturity of Deep UV LED technology».


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