who is also heading its LED Technologies business unit

After questions about achieving competitive brightness and efficiency levels have been answered by various GaN-on-Si contenders, the yield question has remained open. The large mismatch of crystal lattice structure and thermal expansion coefficient cause highly bowed led high bay light after and during growth. This in turn has a very big negative impact on uniformity levels for wavelength, forward voltage and output power. The company uses its proprietary and patented strain-engineering and growth technologies to overcome these obstacles.
Azzurro’s latest results from production and development clearly prove that in addition to the cost advantages from lower cost substrates and by using standard silicon fabs for LED chip processing GaNon-Si LED wafers with the right strain-engineering technology can also help reduce binning dramatically.Alexander Loesing, who is also heading its LED Technologies business unit, commented on the results: “We are very proud of our team’s record 1.0 nm achievement.
Open Technology’s LiGO control system will provide the exact light levels required across the station, matching lighting use to train timetable, passenger presence, daylight levels and other varying uses. The system is able to ensure maximum savings throughout the year as well as reduce light pollution in the surrounding area.
For the first time, Clapham Junction station will automatically be able to dim the lights down to a minimum value when the station is not in operation or switch the lights off when the station is completely closed. On average, this would amount to savings of 35% of usual lighting use.Delivery of a safe environment is of paramount importance in the transport sector. Our LiGO system gives the confidence that appropriate light levels are maintained at all times, whilst ensuring that they are no higher than necessary. We are able to achieve maximum savings for the operators, alongside comfort and safety for staff and passengers” explained Open Technology Managing Director Chris Bedford.

Clapham Junction will be the latest in a series of projects that has seen Network Rail and South West Trains work in partnership with Open Technology to introduce intelligent lighting controls. Following an initial installation at Woking Station in 2010,led flood light has now been introduced at 25 stations and train maintenance depots across the Wessex Route.Installing lighting control is one part of the South West Trains, Network Rail Alliance’s climate change and energy reduction strategy that is estimated to achieve total annual savings of 7–12 million pounds and a payback period of approximately six years.

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