Tech news tagged ‘technology editor’

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…

Read More

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…

Read More

Electronics Weekly’s guide to LED heatsinking

Check out the latest in the Electronics Weekly’s ‘big guides’ to LED technology – specifically, to LED heatsinking. Steve Bush, our Technology Editor, begins: In the early days of power LEDs, many lighting firms rushed out solid-state luminaries only to find them failing in service.The problem was heatsinking…

Read More

Colour rendering from LED lighting

Specifying white LEDs can be far more complicated than you think…

Make sure you bookmark this article by our Technology Editor Steve Bush about LED lighting, and particularly the role of colour.

He writes:

Start to look into LED lighting and quickly it becomes obvious that one type of LED…

Read More

The history of the LED

Here’s one not to miss. In conjunction with our 50th anniversary issue, Technology Editor Steve Bush has produced a history of the LED. He begins: Back in 1960 Electronics Weekly was born into a ferment of III-V semiconductor research that within two years would produce the first practical…

Read More

Sharp adds to DoubleDome high CRI lighting LEDs

Additions to the DoubleDome series of lighting LEDs from Sharp incorporate three white light diodes and achieve a colour rendering index (CRI) of 85, writes Technology Editor Steve Bush.

The light conversion layer is based on a two-phase production procedure…

Read More

An an LED to compete with 75W light bulbs

Using a multi-chip package, Cree has developed an LED that will compete with 75W light bulbs, writes Technology Editor Steve Bush. It is called the XLamp MPL, and the 12x13mm device will eventually deliver up to 1,500 lm at 750mA, which is 75 lm/W. Each device has…

Read More

OLED lighting research backed by German government

OLED lighting got a boost today when Osram, Philips, BASF and Aixtron confirmed the German Government is to fund a research project, writes our technology editor, Steve Bush.

TOPAS 2012 is the second phase of the OLED 2015 initiative of the German Federal Ministry of Education and Research (BMBF…

Read More

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…

Read More

Anti-fuse secures chains of LEDs

Murata has developed a surface-mount anti-fuse to prevent long chains of LEDs from extinguishing if one device goes open circuit, writes Technology Editor, Steve Bush. The idea is that anti-fuses are connected across LEDs in the string, one per LED. When an LED fails, the voltage across…

Read More