Osram Opto has cut led light output droop by optimising its epitaxial processes. At a current density of 3A/mm², quantum efficiency of the has been increased 7.5%. Under laboratory conditions and driven at 3A/mm2, 740 lm typical luminous flux was produced from QFN LED package (6,200K, Cx 0.319, Cy 0.323, single-chip LDxyz). At low current densities ...
Osram epitaxy boosts high power led efficiency
from ElectronicsWeekly http://www.electronicsweekly.com/blogs/led-luminaries/osram-boost-led-efficiency-477845-2016-04/
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