LEDs ♦ news digest
promising near term sectors for the LED lighting market, with growth (CAGR) from 2010 to 2015 predicted to be 59% for retail and 54% for hospitality. Geographically speaking, Europe in particular has great market potential, with analysts predicting 101% (CAGR) growth from 2009 to 20153.
Bridgelux recently expanded its customer base in all of these sectors, adding to both its hospitality and retail customer base with installations at The Sheraton Hotel at D-Cube City in Seoul, Intersport Austria in Klagenfurt, the Dior fragrance booth at the “Galeries Lafayette” in Paris, Coop Adriatica stores in Italy, and over 40 Manor department store locations throughout Europe with several more installations scheduled for the first quarter of 2012.
Cree HB-LED for elevated outdoor video screens
The Screen Master C4SMT LED is designed with a 20 degree tilted viewing angle
Cree is marketing its new Screen Master C4SMT and C4SMD 4mm LEDs for high brightness applications.
The superior brightness and far-field pattern matching, combined with the packaging technology, should enable Cree LED customers to deliver a better viewing experience for its audience and achieve lower system and operating costs than previous generations of LEDs.
“With the introduction of the world’s first high brightness LED with a 20 degree tilted viewing angle, Cree continues to push the boundaries of innovation,” said William Tang, director of operation, Lighthouse. “The C4SMT LED is ideal for installations with viewing points below the screens.”
The C4SMT and C4SMD are the two brightest
LEDs in Cree’s high brightness P2 oval LED family. Cree believes the C4SMD offers the brightest performance at zero degree intensity and the C4SMT offers the brightest peak intensity performance at a -20 degree angle. Both LEDs are designed to maintain a tight and consistent viewing experience across the entire viewing angle and far field pattern of the LED, allowing for an even viewing experience for the end customer from different angles and viewing positions.
The C4SMT is claimed to be the world’s first commercially available high-brightness LED with a tilted -20 degree viewing angle, optimised for outdoor video screens and digital billboards that are installed higher than the viewing audience. Designed to have its brightest point below the horizon, the C4SMT LED minimises wasted light and can save up to 32 percent in power consumption compared to a standard through-hole oval LED with a zero degree viewing angle.
“Cree is continuing to set the bar for LED innovation and expanding product offerings to meet the burgeoning outdoor video screen market’s needs,” said Mike Watson, Cree, senior director of marketing, LED components. “Cree’s relentless focus on high-brightness LED innovation has produced the first IPX5- rated water-resistant SMD LEDs, the first IPX6/8-rated SMD LED optimized for ease- of-manufacturing, and now, the first angled LEDs, which can revolutionise the large-screen viewing experience.”
Screen Master C4SMT and C4SMD high- brightness LEDs are commercially available now.
Electrical resistance could be transformed
Studies on electric friction in gallium arsenide could be useful in the future for designing more efficient and faster electronics and finding new
January / February 2012
www.compoundsemiconductor.net 77
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