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

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

LpR 67 Article, page 50: Cost and time-efficient methods for the fabrication of optical elements are highly desirable in the field of lighting. Imprinting optical structures in combination with large area fabrication turns out to become an effective approach in this regard. In particular roll-to-roll UV nanoimprint lithography (R2R-UV-NIL) has a large potential to set new benchmarks for the fabrication of miniaturized, low-cost and low-weight optics that can be applied in many fields of applications. In the following, the Joanneum Research Forschungsgesellschaft m.b.H team, Claude Leiner, Stephan Ruttloff, Dieter Nees, Anja Haase, Ladislav Kuna, Wolfgang Nemitz, Franz-Peter Wenzl, Christian Sommer, Barbara Stadlober and Ursula Palfinger, led by Paul Hartmann, demonstrates the maturity of the related process chain, combining optical design, direct laser lithography, step&repeat imprinting for shim fabrication and R2R reproduction.

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Automatic Panel Level Transient Thermal Tester

Automatic Panel Level Transient Thermal Tester

LpR 67 Article, page 44:The thermal resistance junction in case is an important parameter for the reliability of LEDs because degradation of the LED is temperature driven. Simulation and testing has advanced over the past few years but transient thermal analysis (TTA), which is required to understand the thermal transfer path, is especially work and time consuming - and not automated. Gordon Elger, Professor for Electronic Manufacturing Technologies, Technische Hochschule Ingolstadt, and his co-authors, Maximilian Schmidt, Alexander Hans, and Dominik Müller, 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.

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WHITE PAPER - LEDs Lead the Way for Horticultural Lighting

WHITE PAPER - LEDs Lead the Way for Horticultural Lighting

Horticultural lighting is one of the fastest growing markets in the LED lighting industry today. Currently estimated at being worth $690 million dollars annually by LEDInside, this figure is projected to reach billions in the coming years.

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WHITE PAPER - Intelligent Buildings: Smart Lighting as the Backbone for Buildings Automation

WHITE PAPER - Intelligent Buildings: Smart Lighting as the Backbone for Buildings Automation

With a growing focus on human-centric workspaces, building owners and operators are looking beyond energy efficiency, and considering smart lighting as the backbone for advanced building automation applications.

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WEBINAR "Secure Smart Lighting: Unlocking a Building's IoT Potential"

WEBINAR "Secure Smart Lighting: Unlocking a Building's IoT Potential"

Smart lighting does more than illuminate a space. Beyond energy conservation, a smart lighting system can serve as the infrastructure for building automation, and data collected from the smart lighting system are used for advanced applications such as space optimization, building security, and mobile asset tracking. With these new use cases, requirements for a commercial-grade smart lighting system are changing and security is becoming top of mind. This webinar, sponsored by Arm Ltd., is for LED manufactures, lighting control/sensor providers and system integrators, covering key considerations for commercial smart lighting systems including connectivity, interoperability, and end-to-end security.

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WHITE PAPER - LEDs Lead the Way for Horticultural Lighting

WHITE PAPER - LEDs Lead the Way for Horticultural Lighting

Horticultural lighting is one of the fastest growing markets in the LED lighting industry today. Currently estimated at being worth $690 million dollars annually by LEDInside, this figure is projected to reach billions in the coming years.

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OpenAIS Project Completed after Successful Validation of IPv6 Based Lighting Controls

OpenAIS Project Completed after Successful Validation of IPv6 Based Lighting Controls

The EU-Horizon 2020 co-funded OpenAIS [1] project, that successfully brought open IPv6-based control to the lighting world, has been completed as planned. A consortium of seven leading companies in lighting, IoT and building management and two knowledge institutes worked closely together for 3.5 years on IP-to-the-end-node connected lighting for professional buildings.

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‘Luminaire of the Future’ Aims to Revolutionize the European Lighting Industry by 2020

‘Luminaire of the Future’ Aims to Revolutionize the European Lighting Industry by 2020

As part of the European Commission’s Horizon 2020 work programme, the Repro-light project (Re-usable and re-configurable parts for sustainable LED based lighting systems) aspires to successfully initiate a transformation in the European LED lighting industry, by creating the ‘Luminaire of the Future’.

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New LRC Study Tests the Impact of Circadian Light on Alertness in Office Workers

New LRC Study Tests the Impact of Circadian Light on Alertness in Office Workers

In 2017 the Lighting Research Center (LRC) at Rensselaer Polytechnic Institute published a groundbreaking study showing that office workers who receive a robust dose of circadian-effective light experience better sleep, and lower levels of depression and stress, than those who spend their days in dim or low light levels. The team of LRC researchers, led by Dr. Mariana Figueiro and sponsored by the U.S. General Services Administration, measured existing light levels for 109 participants at five federal office buildings designed to maximize daylight availability indoors. The research team found that even in open offices with many, large windows, office workers were not receiving enough light to stimulate their circadian system during the day, due to factors such as season, cloud cover, desk orientation, and window shade position.

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Phosphors & QDs LED Downconverters Report for Lighting & Displays from Yole Développement

Phosphors & QDs LED Downconverters Report for Lighting & Displays from Yole Développement

“Volume saturation, price pressure and a shifting intellectual property landscape are forcing the LED phosphor & QDs industry into a rationalization phase,” announces Dr. Eric Virey, Senior Technology & Market Analyst, Yole Développement (Yole).

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FEATURED

Luxeon V2, the Best Choice for a 2 mm² High Power LED

Luxeon V2, the Best Choice for a 2 mm² High Power LED Lumileds announced breakthrough high power performance with the new Luxeon V2 LED. With the highest performance in its class for output and efficacy, the emitter easily enables DLC Premium performance at the system level. Luxeon V2 utilizes a 2 x 2 mm Chip Scale Package (CSP) in a 3.5 x 3.5 mm ... Read more »

FEATURED

The 22nd China (Guzhen) International Lighting Fair

The 22nd China (Guzhen) International Lighting Fair China (Guzhen) International Lighting Fair is based in China Lighting Capital- Guzhen Town, where thousands of lighting manufacturers lies and is dubbed as the source of lightings. With the help of local government and UBM, the fair has been successfully held for 21 editions. Read more »

FEATURED

Edison Opto Introduces Breakthrough AC Module Series

Edison Opto Introduces Breakthrough AC Module Series Edison Opto Corporation, the leading LED lighting company based in Taiwan, introduces a wide range of AC modules. These AC modules can be broadly used in ceiling lights, mirror front lights, corridor lights, tri-proof lights, and down lights to meet different customers’ requirements. Read more »

EDITORIAL

High Conductive Foils Enabling Large Area Lighting

High Conductive Foils Enabling Large Area Lighting Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP as one of the leading partners for research and development for surface technologies and organic electronics and Sefar AG, a leading manufacturer of precision fabrics from monofilaments, developed a roll-to-roll ... Read more »

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