Tech news tagged ‘steve bush’

Cree breaks 10k lm barrier with CXA3050 LED

To its CXA range of multi-die ceramic tile style devices – sometimes known as ‘arrays’ – Cree has added two brighter lighting LEDs, writes Steve Bush. The cool white CXA3050 delivers 6,340 lm (85°C, 52W drive, 5,000K, 75CRI) which is 122 lm/W, and can be pushed to…

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Government to fund research into LED-based optical networks

An interesting in-depth article by Steve Bush, our technology editor, considers LED-based Gbit/s free-space optical networks… Universities involved include Edinburgh, Cambridge, and St Andrews, and the work is lead by the University of Strathclyde. Spin-outs mLED (Strathclyde) and pureVLC (Edinburgh) are also involved. He interviews…

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October marks 50 years of history for the LED

Back in 1960 Electronics Weekly was born into a ferment of III-V semiconductor research that within two years would produce the first practical LED. In 1960 Dr Nick Holonyak of General Electric was developing an unusual material, GaAsP, as a route to wide bandgap tunnel diodes.So begins Steve…

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OMC introduces a range of Spectralux light engines

Cornwall-based OMC has introduced a range of light engines for LED luminaries, called Spectralux, writes Steve Bush. “Spectralux light engines allow customers to concentrate on what they do best – creating and taking innovative and appealing products to market – using efficient, reliable and cost-effective LED assemblies that have a…

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Atmel gets ZigBee Light Link certification

Atmel has achieved ZigBee Light Link Certification for its wireless controller reference design, writes Steve Bush. Light Link is one of the competing technologies for consumers wireless control over domestic LED fixtures, light bulbs, timers, remotes and switches. One controller can handle up to 255 devices…

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Lumileds to show Luxeon R for street and industrial lighting

Lumileds has launched Luxeon R, a lighting LED designed for outdoor and industrial applications such as streetlights, high-bay lights, wall packs and bollards, writes Steve Bush. For these uses, the colour rendering/efficacy trade-off is set in favour of efficacy, although minimum colouring index is still 70…

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L+B: Molex reveals further solder-free LED connectors

Molex revealed further solder-free LED connectors for light fittings at the Light + Building exhibition in Frankfurt, as well as board to board connectors for lighting, writes Steve Bush. Molex’s LED holders are intended for high-wattage array products where multiple die are mounted on a single ceramic tile…

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LED reddens as it dims for soft lighting

LED Engin is to reveal details of an LED that dims like a halogen bulb, reddening as its output drops, at Light+Building in Frankfurt (15 – 20 April), writes Steve Bush. Dubbed Luxitune, its dimming characteristic is intended to match established expectations in architectural lighting. “This is particularly useful in…

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Light+Building: Cree pushes LED downlighter to 3,000 lm

Cree has extended its LMH2 lighting module family, with 2,000 and 3,000 lm output options, and will be showing them at Light+Building in Frankfurt, writes Steve Bush. Supplied as a fully-enclosed 76mm diameter emitter (88mm flange), the modules are chip-maker Cree’s way of gently…

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Cree boosts mid-range lighting LED choice

Cree has added two ranges to its mid-range ML lighting LED family, writes Steve Bush. Called ML-C and ML-E, they add red, green and blue colour options, ‘high’-voltage operation, and three different price-performance options to the 3.5×3.45mm ML footprint…

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