MAURY WRIGHT previews exhibits at the 15th annual Strategies in Light event that will include demonstrations that run the gamut from packaged LEDs to the many enabling technologies needed for robust SSL product development.
The 15th anniversary Strategies in Light (SIL) conference and exhibition is around the corner, scheduled for February 25–27, 2014 in Santa Clara, California. The exhibits this year will set a record for occupied space, and more importantly they will showcase the LEDs, enabling technologies, test equipment, software, and other products and tools needed to develop robust solid-state lighting (SSL) systems. Leading up to the show we had a chance to discuss exhibit plans with some of the longtime exhibitors and also gather some projections from key industry executives.
Packaged LEDs and SSL business
SIL is always a key event for the packaged LED manufacturers and 2014 will be no exception in that regard. We expect to see a number of new technologies on display across the range of mid-power LEDs, singleemitter high-power LEDs, and multi-emitter devices including in both discrete-like packages and in chip-on-board (COB) products. Going into SIL, however, the LED makers are equally focused on the SSL market and business conditions as on technology advancements. led wall washer light
“The US macro-economic indicators — for example, GDP increasing 2.5% and construction growth of about 8% — present an optimistic outlook for the LED lighting industry in 2014,” said Dwayne Sterner, vice president of sales for North America at Seoul Semiconductor. “Demand for incandescent replacement lamps, the highest growth application, has been accelerated by the Energy Independence and Security Act of 2007 ban on 40W and 60W incandescent lamps that took effect in January 2014. There is also a shift toward LEDs for higher-wattage bulbs driven by performance improvements of both 5630 and 3030 LEDs, in addition to offerings of 90 CRI in applications where quality of light is important.” led
From a technology perspective, Seoul believes mid-power LEDs will continue displacing high-power offerings in many applications based upon significant improvements in efficacy and lumens per dollar. Sterner said the price/performance gap between 5630 and 3030 LEDs is narrowing and it’s conceivable that the 3030 package will prevail by year’s end. At the other end of the spectrum, Seoul believes COB products offer an attractive solution in downlighting applications and others. Seoul will feature both types of products in its exhibit along with modular products, including AC-LED light engines.
Osram Opto Semiconductors will similarly feature a broad set of LED products that includes the Duris family of mid-power LEDs and the Soleriq COB products. The new Oslon Square LED, which was announced in December and is characterized at higher temperatures, will be featured. Osram will also demonstrate products for automotive and projection applications, and that’s indicative of the company’s broad approach to the LED market.
“As LED is now increasingly making its way into general lighting applications, we expect demand in 2014 to remain at high levels,” said Ulrich Steegmueller, CTO of Osram Opto Semiconductors. “According to market reports, the 2012 McKinsey Market Report, for example, the general lighting is expectedto overtake the current market-leading segment, LEDs for backlighting. General lighting will be the strongest growth driver for years to come. Other segments that offer additional potential growth are automotive forward lighting, mobile flash, and mobile projection.” led flood light
LED performance gains
Philips Lumileds, meanwhile, will stress LED performance advancements at SIL as the key to broader adoption. “Philips Lumileds expects 2014 to be a breakthrough year for LED performance and cost effectiveness, making SSL decidedly competitive with incumbent technologies across architectural, outdoor, retrofit lamps, automotive, industrial, and retail applications,” said Rahul Bammi, vice president of product management at Philips Lumileds. “The enabling technologies fueling this trend are new highefficiency epi, device, and packaging architectures as well as new classes of phosphor materials. We also expect greater focus on color mixing and the ability to simultaneously achieve high efficiency and high lumen output by combining color and phosphor-converted white LEDs.” led flood light
At SIL, Philips Lumileds will be demonstrating its latest offerings in low-, mid- and high-power LED single emitters and arrays; COB LEDs; and colored LEDs. The demonstration will include the Luxeon TX high-flux emitters that can be used to achieve a system efficacy of 120 lm/W at 350mA of drive current and 85°C operating temperature for applications such as outdoor lighting. In the Luxeon COB family, Lumileds features an industryleading small light-emitting surface (LES), which simplifies the design of downlights and directional lamps. Philips Lumileds only entered the mid-power market last year but will showcase its Luxeon 3535L mid-power LEDs at the event.
We expect that Cree may show a brand-new discrete LED architecture at SIL, although we could not get details prior to press time. The company will demonstrate its broad packaged LED product line. Also, the new 6000-lm version of the company’s LMH2 module family will be prominent along with the new versions of the module family offering sunset dimming technology that mimics halogen incandescent dim-to-warm lighting.
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