Latest Tech News About LED Technology

Blood and pulse monitor chip has 3 LEDs plus photodiode

For fitness devices, Osram has combined three different colour LEDs and a photodiode in a single 4.7×2.5×0.9mm package for reflective blood oxygen and pulse sensing. Leds in the SFH 7050 are 530nm (green), 660nm (red) and 940nm (infra-red), the photodiode active surface is 1.3×1.3mm…

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Design your own collimator

Zemax has put a series of videos up on its website showing how its OpticStudio can be used to design a collimator for a particular LED…

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Diary date: LpS 2014

With more than 60 lectures and over 100 exhibitors, the international LED professional Symposium+Expo will take place for the fourth time from Sept 30th to Oct 2nd in Bregenz, Austria. One of the lecture presentations will be about the development of a new color fidelity index, called CRI2012, presented…

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Cree: 1,100 lm four die XM-L2 for '50W' bulbs

Cree has introduced a four die ‘EasyWhite’ version of its XM-L2 LED, as well as a 200 lm/W ‘XP’ device (see below). Like the original single die XM-L2, bins are available to deliver more than 1,100 lm from a 5x5mm package – so one can be used…

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Luxeon Z ES gives more light and other whites

April brings a refresh to Lumileds un-lensed Luxeon Z ES range. These little tiny (1.6×2.0mm) lighting LEDs now have higher temperature white options at all CCTs and outputs are up across the range – there is a 245 lm 5,700K 70CRI (typical 700mA 85°C). For a…

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SemiLEDs tackles phosphor packaging problem

SemiLEDs is sampling white light LEDs using a proprietary phosphor technology, which it says delivers “a highly uniform phosphor coating across the emitter surface, greatly increasing colour precision and uniformity”. A feature of the technology is that it can eliminate phosphor application from the packaging process, as a result and…

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Intematix and LED lighting phosphors

White lighting LEDs are almost universally a combination of a blue light-emitting InGaN die and a phosphor that steals some of the blue light and converts it into a broad spectrum peaking at yellow or amber. The combination of blue light and yellow light looks white to humans. But…

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Salary Survey 2014 takes industry temperature

We are pleased to announce that Electronics Weekly, working in partnership with European Recruitment, is conducting a new salary survey for the electronics industry. Sounding out such important matters as pay and benefits and your thoughts for the future outlook. Take the Salary Survey 2014 » We are looking at remunerations…

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