San Jose, CA —There's a new record in efficiency for LEDs. According to LumiLeds Lighting (a joint venture of Agilent Technologies and Philips Lighting), its latest InGaN (indium gallium nitride) devices have wallplug efficiencies (WPE) of 25% at 425-nm (purple) wavelength, running at 250 mA dc. The previous reported industry record was 22%. WPE is considered a "real world" quantity, measuring optical output power divided by electrical energy input. The devices emit more than 200 mW of optical power.
Frank Steranka, LumiLeds materials R & D and product development manager, adds, "We are exhibiting up to 55 lumen devices in certain colors." Applications in-clude LCD monitors and TVs, with brighter colors and lower pow-er consumption, and consumer uses such as flashlights.
Sciaky, provider of electron-beam additive manufacturing (EBAM) services, will start selling these machines commercially in September. The company has used its EBAM 3D printing technology for making very large, high-value, metal prototypes and production parts for aerospace and defense OEMs.
At this year’s Google I/O, the spotlight was pointed on gender inequality in the high-tech industry. Google has established a new initiative that it hopes will even out the playing field, Made w/Code. Part of this initiative will fund free online courses in basic coding.
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