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Siemens Unit Sets Record

Photonics Spectra
Apr 2012
Siemens AG of Munich has announced that its Osram subsidiary has set a new efficiency record, developing an OLED that generates 32 lm of light per watt, making it more efficient than a halogen lamp. Osram has produced a flexible OLED that emits white light from a surface measuring approximately 11 x 3 cm. The 32-lm/W device was feasible in part because of a special design for the vacuum-metallized electrical contacts. The efficiency values were measured using a large-area sample under the most realistic conditions possible, and without any lenses or other devices to increase the light yield.

32 lumens per wattBusinessEuropeflexible OLEDsGermanyhalogen lampslight emitting diodeslight sourceslight speedOLEDsOrbeosOrbeos Danceorganic LEDsOsramSiemens AGthin film sealedwhite light emission

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