LEDs ♦ news digest segments in 2011 and 2010. Cree’s XLamp ML LED
Designed to accelerate the adoption of LED lighting, the expanded XLamp ML family now offers red, green and blue colour options, high-voltage and three different price- performance options in the ML package. Cree says the ML LED high-voltage options can enable the use of more efficient, smaller drivers to lower cost for applications such as LED replacement lamps.
Drew Nelson, IQE Chief Executive, comments, “Our strong growth momentum was temporarily impacted in the fourth quarter by inventory corrections at two of our major wireless customers. Despite this, I am pleased to report a year on year increase to record revenues and profits. These inventory corrections continued into the first quarter, but as anticipated, customer forecasts now reflect a return to growth as expected for Q2 and onwards.”
“New product qualifications have progressed very well, with newly qualified products now ramping into production and other qualifications nearing completion. Furthermore, our capacity expansion programme remains on track, which is providing customers with a high degree of confidence in IQE as a key supplier as they keep their allocation of supplier shares under review.”
“Our optoelectronics business has a number of near term opportunities which have progressed well during 2011 and which could result in a number of key products ramping to volume production as early as 2013. Following the year end, we announced a strategic investment in Solar Junction Corporation and an exclusive long-term supply agreement, a move that will accelerate our penetration into the exciting, third generation CPV solar market.”
Nelson concludes, “The Board remains confident that IQE is well positioned for strong growth in 2012 and beyond.”
Mid-power LEDs from Cree add to its multipurpose
lighting family Cree’s new XLamp LEDs are designed to optimise and simplify luminaire designs Cree has unveiled a new range of mid-power XLamp ML-C and ML-E LEDs, bringing increased versatility and flexibility to a wide spectrum of lighting applications.
XLamp ML LEDs offer the flexibility and optimisation needed to quickly design a portfolio of products for multiple lighting applications, including architectural, hospitality, emergency vehicle, decorative lighting, and linear florescent LED replacements.
With a shared 3.5 mm x 3.45 mm footprint, customers can quickly and easily expand or update their product portfolio by leveraging a common ML package.
“Using products from Cree’s ML LED family gives us great flexibility,” says Michael Pena, President, Blue Ridge Lighting Solutions. “From a full white colour temperature spectrum and different power ratings to the offer of colour LEDs, the family of ML products gives us the capacity to offer our customers a full range of lighting options.”
“Providing the broadest portfolio of LED components is essential to accelerate LED adoption,” adds Mike Watson, Cree senior marketing director, LED components. “Cree’s expanded family of optimised ML LEDs further extends the options for our customers to support a wide array of lighting applications without sacrificing lighting-class performance.”
The ML-C LED delivers luminous flux up to 37 lumens in cool white (5000 K) and up to 31 lumens in warm white (3000 K), both at 100 mA.
The series versions of XLamp ML-C and ML-E white LEDs have typical voltages of 6.4 V and 9.6 V, respectively, at 50 mA.
The entire family of XLamp ML white LEDs provides 6,000 hours of LM-80 data available now, which can speed up the ENERGY STAR qualification process. The XLamp ML white family is also available in minimum 80, 85 and 90 CRI options
GaN-on-diamond could improve sensors and LED
efficiency A new project focussed on developing a substrate material for Group4 Lab’s novel technology combines diamond and gallium nitride. It is aimed at developing ways of rapidly, efficiently, passively, and cheaply extracting heat
Alfred University has signed a contract with Group4 Labs to develop sacrificial substrates to support the firm’s GaN-on- Diamond technology.
The aim is to improve efficiencies in solid state lighting and April/May 2012
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