LED Professional Review - LED professional Review (LpR) - Issue 07

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ISSN 1993-890X

Review

The technology of tomorrow for general lighting applications.

May/Jun 2008 | Issue

LpR

07

Industrial Fairs light+building LIGHTFAIR INTERNATIONAL

Synthetic Jet Technology Photonic-Lattice Technology

Copyright Š 2008 Luger Research & LED-professional. All rights reserved.

From Components to Systems

This year the Light and Building trade fair in Frankfurt showed it clearly: LED lighting has made a big step forward from lighting component level to lighting system level. The integration of LEDs and their system components into general lighting system solutions, such as downlights, hybrid luminaries, office luminaries, emergency lighting, or light walls, have been accelerated. Multiple important drivers have triggered this fast development in recent years.

In the first place, increased lumen output values were needed. This could be reached with improved LED efficacy values and also based on high power LED arrays, sometimes combined with remote phosphor concepts and especially high-end cooling systems.

Secondly, the light quality has had to be improved. Nowadays single LED devices with high CRIs and warm-white color temperatures are available for fixed white light. Even lighting systems with variable CCTs are used in multiple applications. But the generation of high efficient, warm-white light with CRI values above 90 remains challenging.

In addition, a special aspect of light quality concerns the spectral and color tolerances. Now LED manufacturers support closer binning, reached by improved, selective production processes. As Steve Landau, Marcom Manager of Philips Lumileds mentioned, his company wants to decrease the binning dramatically down to MacAdams 4, resulting in a categorization of color temperatures only.

Furthermore, LED lighting depends mainly on the ability of users (e.g. OEMs) to deal with the application of LED lighting systems. In this respect, there were a lot of auspicious approaches at the Light and Building trade fair such as lighting networks, ready-to-use LED modules, ready-made thermal management modules, etc.

Finally, a new mindset has evolved, taking into account that LED lighting has to be part of an emotional lighting story in buildings instead of pure technical specifications. This change opened the way for totally new applications like concrete walls with integrated LEDs. All in all, the Light and Building trade fair was a clear demonstration of LED lighting systems coming out of niche applications into broader areas of general and architectural lighting.

In addition to the LED technology, which was clearly the center of interest, OLED was also unveiled at the Light and Building trade fair, showing the first luminary product worldwide: a desk lamp designed by Ingo Maurer.

The present LED professional Review (LpR), issue May/June 2008, highlights project and product trends shown at the Light and Building trade fair in Frankfurt, and also points out some aspects of the next big lighting event, the LIGHTFAIR INTERNATIONAL in Las Vegas at the end of this month.

Regarding technology background information, the LpR covers the following topics in detail: LED packaging, innovative building control systems, improved driver concepts, and a signage report.

Please send us your feedback about the LpR content. We would like to get your opinion on how to continuously improve our services for you. You are welcome to contribute your own editorials.

Yours Sincerely,

Siegfried Luger Publisher

www.led-professional.com

LED professional Review | May/Jun 2008 | page

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Copyright © 2008 Luger Research & LED-professional. All rights reserved.

Imprint LED professional Review (LpR) ISSN 1993-890X

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