LED Luminaries

LED news and insight from our technology editor Steve Bush, who has been messing with LED lighting for more years than he would care to remember.

Latest Tech News About LED Technology

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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Dev kit for DALI and DMX colour lighting

Gaggione, Cree, and Microchip have teamed up to produce a lighting development kit for digitally-controlled multi-coloured LED lighting. The Lighting Communications Development Platform  combines a PIC microcontroller with a RGBW MC-E LED and a 45mm LLC19N colour-mixing narrow beam focusing optic. Also in there is DALI…

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