Posts Tagged ‘light source’
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LEDs serve broadband communications

Edinburgh start-up Visible Light Communications (VLC) is focussing on using flickering LEDs instead of WiFi for broadband communications, writes David Manners.  

Speeds of up to 500Mbits/sec have been achieved for the technology, called Li-Fi, but the first product from VLC – a consumer transmitter – will deliver data at…

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Cree white LED offers lighting market ‘highest’ efficacy

Cree has annouced commercial availability of an LED lighting module which is capable of delivering 80-lumens-per-watt system efficacy combined with CRI greater than 90, writes Richard Wilson.

The modules features the supplier’s TrueWhite technology for generating white light with LEDs. “The new modules make the benefits…

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Osram goes OLED with warm white Orbeos lighting

Osram has introduced the first OLED lighting product. Called Orbeos, the warm white area emitter is 80mm diameter, 2.1mm thick and weighs 24g, writes our Technology Editor, Steve Bush. Colour temperature is 2,800k and colour rendering index is “up to 80″, said the firm. Efficiency is 25 lm…

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LED Bulbdial Clocks

Check out this ingenious use of LEDs, for time telling. Basically, “Bulbdial” clocks rely on changing electric light to emulate the principles of sundials. Very impressive in their design, and they look like works of art…

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