LED Show 2013 Panelists Debate Future Needs of LEDs for General Lighting
The LED Show 2013 held in Las Vegas on Aug. 13-15 had its largest ever turnout, with more than 2,600 people from 54 countries, and more than 100 exhibitors.
A session of expert panelists The LED Show 2013 session emphaiszed some difference among industry leaders on the future advancements of LEDs for general lighting, according to convention web site.
The presentation focused on how to meet solid-state lighting (SSL) system quality and cost goals with different LED technologies and brought out the different ideas about how LEDs and SSL systems will evolve, according to the site.
Chad Stalker, regional marketing manager for the Americas at Philips Lumileds, said that future efficacy advancements will come at the system level than the component level. He said that LEDs will continue to improve but at a slower rate, according to the site.
Stalker’s presentation covered advancements at the component level, outside of efficacy, that can improve system efficacy and deliver better quality light. He said better red LEDs mixed with phosphor-converted white LEDs are critical, LED Show said.
Erik Swenson, manager of LED sales at Nichia, discussed mid-power LEDs. Swenson says that these components are improving efficacy more rapidly than high-power devices and offer better quality and aesthetics that better match many application requirements, LED Show said.
Swenson also said that mid-power devices have an economy of scale advantage that high-power devices cannot match.
Paul Scheidt, product marketing manager at Cree, discussed the system-level problems with cost. He said LEDs as less of a factor to system cost relative to other things such as drivers, thermals, and optics, the show. Scheidt outlined different ways to address the system cost issue using different types of LEDs and different system architectures.
Scheidt also said that mid-power LEDs will shift in color with unacceptable results in as little as two years. He said the problem is especially significant as you drive the LEDs harder and try to limit the number of LEDs in the system.
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