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Editorial Preview: LpR 67 | May/June 2018
Planned Topic* Title / Description Keywords - Content

LpS Best Papers
Scientific award nominated

Automatic Panel Level Transient Thermal Tester

The thermal resistance junction in case is an important parameter for the reliability of LEDs because degradation of the LED is temperature driven. Transient thermal analysis (TTA) is still work and time consuming and not automated. The authors present and discuss an automatic panel level TTA tester. They explain the challenges and the solution and demonstrate the applicability of using LED test board-panels.

Thermal management, automation, transient analysis

Roll-to-Roll manufacturing

Roll-to-Roll UV Nanoimprint Lithography for Large-Area Nano- and Micro-Structuring of Flexible Substrates

Roll-to-roll UV nanoimprint lithography (R2R-UV-NIL) is gaining an increasing amount of industrial interest for large-area nano- and micro structuring of flexible substrates. It combines the possibility of multi length scale and 2.5D patterning of a functional resist with a square meter per minute productivity. The combination of direct laser lithography, “step & repeat” imprinting for shim fabrication and R2R reproduction offers a high diversity of application fields. It is not only the lighting markets that ask for upscaling possibilities, free form lenses and mirrors. Wave guiding units or complex light manipulating systems add new possibilities for customized photonic systems, security features or large area high-end decoration. The article presents the possibilities of combining greyscale laser lithography and roller-based imprinting with functionalized high-k imprint resins and showing how to produce meters-per-minute 2.5D optical features on flexible substrates.

large flexible substrates, roll-to-roll manufacturing, imprint lithography, nano/micro-structures, applications

Displays & advertising boards backlighting

A New Approach for Manufacturing LED Advertising Boards Backlighting

Today’s displays and advertising boards should be flexible, lightweight, and of an easily customizable size, which makes them relatively expensive. Simplification and/or new approaches and production technologies are required. In a European project, researchers have developed new types of LED displays that combine the flexibility, low cost and high technical performance enabled by roll-to-roll mass manufacturing technology.

Backlighting, dynamic lighting, configuration, size, features, costs

Tech-Talks Bregenz (TTB)
Data & internet security specialist, ethical hacker

Ken Munro - Partner and Founder of Pen Test Partners

Ken Munro works for Pen Test Partners, a company that specializes in the security of the Internet of Things. He is a so-called ethical hacker. At LpS 2017 he demonstrated shocking security leaks. In the interview he talked about what else can go wrong and how engineers can avoid mistakes in product design and applications. To sum things up he also explained why the end user should be better informed about how to correctly operate a system in order to be as safe as possible.

Internet, IoT, security, privacy, measures, advices

cost effective production

Manufacturing Revolution Entering the LED Lighting Industry

Western business investments in local manufacturing facilities have been declining since the 1980s due to partnering with contract manufacturers in Asia. But with increasing and hidden costs in Asia companies are now seeking to bring manufacturing back home. A recent innovation, micro-factories could be the solution. The authors present the microfactory as a new, flexible manufacturing concept, and analyze the benefits of local, automated production of LED lighting products, as an alternative to contract manufacturing in Asia.

Labor costs, quality, flexibility, automation

IoT & lighting

Integrating Lighting in the Internet of Things

Following the rapid penetration of LEDs lighting now becomes integrated into the Internet of Things. Over the past three years a consortium of leading European companies worked on the OpenAIS project, partly funded by the EU within the Horizon 2020 program, now showing the results working at a full size demonstrator. The authors show how OpenAIS creates an open ecosystem to enable a wider community to deliver the smartness of light and they explain how it is possible to adapt the system to cater to the diversity of people and demands.

Open source, standardization, IoT lighting controls

Optics design and manufacturing

LED Lighting Requires new Approaches in Optics

Even though LED technology has been established LEDs still need new approaches in electronics, thermal management or optics to make complete use of their advantages. One approach is to design and manufacture lenses using calculated surface nano- and microstructures. The new approach is based on the knowledge from computer-generated optical and holographic components, which have already led to new, revolutionary lenses for luminaires. The authors will show how the new optics are designed and manufactured and what the options are.

New approach, micro-structures, nano-structures,

Robustness of optics

Abrasion in Transparent Lens Materials for Exterior Aircraft Lighting

For aircraft operators, maintenance contributes considerably to costs. As airframes are pressed into nearly continuous service in varying environments, using materials that can withstand particulate abrasion and thermal and chemical stresses will reduce the total cost of ownership of an exterior light fixture. A new study shows that glass lenses can withstand the harsh operating environment of aerospace for more significant periods of time than their plastic counterparts, helping to increase the longevity and reliability of LED exterior lighting systems.

Aviation, LED optics, robustness, maintenance, costs, material, lifetime

Product ads gain maximum impact when placed with the corresponding editorial theme! The editorial topics mentioned above are special features among a wide range of topics impacting the LED industry. Every issue also covers the latest industry news, technological breakthroughs, state-of-the-art products, and much more...

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High Conductive Foils Enabling Large Area Lighting

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