White Paper | Technology

WHITE PAPER: Intelligent Over Temperature Protection for LED Lighting Applications

Application circuit with the new ILD6070 driver: The current reduction is triggered at a threshold of the solder point temperature of the LED driver IC which is adjustable using an external resistor connected to the Tadj pin LED lighting is becoming increasingly popular. It offers numerous advantages over conventional lighting, but there are still some issues. One is thermal management. Bernd Pflaum and Hakan Yilmazer from Infineon Technologies explain how LED driver ICs with smart over temperature protection help to increase lifetime and optimize system costs of LED lighting systems. Read more »

White Paper | Technology | Aug 28, 2014

Osram Opto Demonstrates "3D nano LEDs" for White Light and Sees Series Maturity in Coming Years

Osram researchers make a 3D nano LED for white light shine on the wafer using two tiny, energized needles.The needles are pressed onto the contact surfaces of the chips, and the distance between the contact points corresponds approximately to the thickness of three sheets of stacked writing paper By making use of nanotechnology, Osram hopes to produce significantly more LED chips with its existing production plant. Osram researchers have for the first time succeeded in manufacturing a so-called "3D nano LED" for white light. The productivity boost is possible due to the special surface characteristics of the LED chip – in contrast to today's standard models, this is not smooth but consists of many adjacent, microscopically small columns with a three-dimensional structure, thus increasing its light-generating area. The new technology is expected to achieve series maturity in coming years, and Osram would then be one of the first companies to use this technology. Read more »

White Paper | IP, Reports & Roadmaps | May 22, 2014

Yole Releases New Nanowire LED IP Study - Startups Compete with Asian LED Giants in the IP Landscape

Timeline of patent publications for active devices Asian giants Samsung, Panasonic and LG are the top three patent assignees for Nanowire LED technology. Facing them are several startups including glo, Aledia and Ecospark, which between them have raised more than $150M - thus confirming their serious interest in this field. However, these newcomers face strong technological challenges. Read more »

White Paper | IP, Reports & Roadmaps | Apr 23, 2014

GaN-on-Silicon Substrate Patent Investigation - Knowmade & Yole See More Players on the Playground

Evolution of patent publications related  to GaN-on-Si technology from the earliest beginning in the seventies until today GaN-on-Si technology appeared naturally as an alternative to GaN-on-Sapphire—the main stream technology for LED applications. Today, despite potential cost benefits, the mass adoption of GaN-on-Si technology for LED applications remains unclear. Most major LED makers have a patenting activity related to GaN-on-Si technology, but so far, few have made it the core of their strategy and technology roadmap. Contrary to the LED industry, we expect GaN-on-Si to be widely adopted by Power Electronics and RF applications because of its lower cost and CMOS compatibility. Read more »

White Paper | Standardization + Regulation | Apr 08, 2014

EEPCA & LightingEurope Announce ENEC+ - The First European Mark That Certifies the Initial Performance of LEDs and Other Luminaires

ENEC+ is complementary to the ENEC Mark EEPCA, the European Electrical Products Certification Association, in cooperation with LightingEurope, today announced the launch of ENEC+, the first pan-European mark capable of certifying the initial performance of traditional and LED luminaires. The new performance rating provides the market with certification as to the compliance of LED light fixtures and other luminaires, proving compliance with European safety standards and ensuring the reliability of their stated performance characteristics at the beginning of their life cycle. Read more »

White Paper | Standardization + Regulation | Apr 08, 2014

Zhaga Starts Work on New Books

The Zhaga Consortium, which develops specifications for interchangeable LED light engines, has started to write Books 9, 10 and 11 The Zhaga Consortium, a global lighting-industry organization that is enabling interchangeable LED light engines, has started the development of three new interface specifications, known as Books. The new Books are designated numbers 9, 10 and 11. Read more »

White Paper | IP, Reports & Roadmaps | Mar 20, 2014

Yole Développement's GaN-on-Si Report Forecasts Future of power Electronics and LEDs

Voltage and current requirements for different applications and the GaN-on-Si power device development status at the present time Yole Développement releases this week the GaN-on-Si Substrate Technology and Market for LED and Power Electronics report. Under this report, Yole Développement reviews the GaN-on-Si technology growth, challenges and solutions. Dr Hong Lin and Dr Eric Virey, Yole Développement’s analysts give an overview of GaN-on-Si epiwafer playground. This report also provides an in-depth analysis of the GaN-on-Si technology for LED and power electronic applications, including technology and cost aspect. Yole Développement’s analysts, both develop possible business models for the adoption of GaN-on-Si technology. GaN-on-Si substrate technology and market for LED and Power Electronics report also includes market volume and revenue forecast to 2020. Read more »

White Paper | Standardization + Regulation | Mar 17, 2014

Zhaga Aims to Enable Independent Interchangeability of LED Modules and Drivers

Current situation: According to current Zhaga Books, full interchangeability applies only to the complete LED light engine (LLE). It may not be possible to interchange the LED module(s) without also changing the driver, or vice versa. Future situation: Zhaga aims to enable full and independent interchangeability of LED modules and drivers The Zhaga Consortium, which develops specifications for interchangeable LED light engines, has decided that it will also aim to enable LED modules and drivers that are independently interchangeable. This is in addition to Zhaga’s stated aim to enable interchangeability of LED light engines. Read more »

White Paper | Technology | Mar 13, 2014

Quantum Materials Secures Los Alamos Thick-Shell Quantum Dot Technology to Increase Brightness

Quantum materials optioning Thick-Shell 'Giant' Quantum Dot patented technology promises improvement in solid-state brightness over conventional nanocrystal quantum dots (QD) Quantum Materials Corporation and Los Alamos National Laboratory's today announce Quantum Materials optioning Thick-Shell 'Giant' Quantum Dot patented technology with the potential of 10 to 100-fold improvement in solid-state brightness over conventional nanocrystal quantum dots (QD). High brightness leads to efficient use of materials and increased performance in electronic displays and solid state (LED) lighting. Read more »

Fundings + Projects | White Paper | Feb 13, 2014

New Research Initiative: LASSIE-FP7 To Develop LED-Based Modules for Professional and Architectural Lighting

CSEM announces the launch of LASSIE-FP7, a research project funded by the European Commission to develop a unique integrated solid-state module that will constitute a breakthrough in professional and architectural lighting. Read more »

Fundings + Projects | White Paper | Feb 11, 2014

CPI Manufactures Flexible OLED Lighting Demonstrators

The Centre for Process Innovation (CPI) has produced a range of flexible Organic Light Emitting Diode (OLED) demonstrators on substrates with thickness ranging from 50µm to 125µm The Centre for Process Innovation (CPI) has produced a range of flexible Organic Light Emitting Diode (OLED) demonstrators. Manufactured on CPI’s OLED/OPV Prototyping Line, the devices have been built on a range of substrates with thickness ranging from 50µm to 125µm. The device structure consists of an Indium Tin Oxide anode, evaporated hole injection layer, co-evaporated emissive layer and a conventional cathode. The device chemistry can be modified to produce a variety of colours and is encapsulated using a pressure sensitive adhesive and a commercially available barrier material. Read more »

White Paper | Products, Materials + Tools | Feb 11, 2014

WHITE PAPER: "LED Reflector and Lens Simulation using TracePro® Illumination Design and Analysis Software"

Luxeon LED as modeled as a surface source using the Tracepro Bridge in SolidWorks TracePro® is award-winning opto-mechanical design software for layout, optimization, & analysis of illumination systems. This white paper illustrates how TracePro allows users to begin a project with an initial or basic design for LED lighting systems, use software simulation prior to building hardware, and easily create complex reflector shapes. TracePro’s reflector and lens simulation utilities are specifically designed to help CAD designers without traditional optical engineering expertise design LED optical components quickly. Read more »

White Paper | Technology | Jan 24, 2014

Cree Sets New Efficiency Benchmark with First 200 lpw LED Luminaire Prototype

Cree, Inc. raises the performance bar again with the demonstration of the first 200 lumen-per-watt (LPW) LED concept luminaire, which is more than twice the efficiency of the best linear fluorescent luminaires. The latest Department of Energy (DoE) projections* had estimated that this level of luminaire efficiency would not occur until after 2020, but Cree’s latest innovation has made this possible six years sooner than projected. The prototype leverages Cree’s vertical integration with innovations in LED chips, optics, materials technology and novel system design to deliver unprecedented performance. Read more »

White Paper | Technology | Dec 11, 2013

The Right Choice of Current-Limiting Resistors for Constant Voltage LED Drivers

There are different resistor types for LED lighting available (Img: Riedon Inc) While LEDs are mostly driven by current sources, there are also several applications where constant voltage drivers are used. In that case current limiting resistors are mandatory. But that raises the question which resistor is the right one to guarantee reliable and accurate control while not compromising efficiency. Phil Ebbert, VP of Engineering at Riedon Inc. explains what to take care of and how to determine the correct parameters. Read more »

White Paper | Lighting Applications | Dec 06, 2013

LED Lighting Masters the Art of In-Flight Calm on Airbus A380s and Boeing 787s

A380 Airbus Cabin Aboard a state-of-the-art aircraft might be the last place you would think of yourself enjoying a warm “candlelit” dinner, followed by a good night’s sleep under a starry night sky. The truth is, the latest aircraft cabins seek to provide just that – a revolutionary in-flight experience through the use of mood lighting. Mood lighting uses the full spectrum of colors and the ability to change these colors continuously with LEDs to mimic or enhance a sunrise morning or a bright, fresh afternoon or a cool evening that winds down the day. These lighting effects even seek to reduce your likelihood of jetlag. LED lighting programs can be specifically designed to gradually shift your waking and sleeping biorhythms to match that of your destination city. Read more »

FEATURED

Emergency Lighting Just Got Smarter

Emergency Lighting Just Got Smarter NEW NOW: OSRAM’s standalone solution for emergency lighting testing, reporting and maintenance. Meet the QBM DALI EL-T CONV, a converter transforming existing DALI emergency luminaires into wireless ones, all controlled by the same lighting system. Its benefits? Allowing you to design all the ... Read more »

FEATURED

Continuous versus Discrete Calibration Sources: Consideration for Use

Continuous versus Discrete Calibration Sources: Consideration for Use Rapid advancements in the field of solid-state lighting have presented opportunities for the use of LED-based systems for calibrations typically performed with lamp-based sources. Their highly efficient and long-lived performance, rapid power up, and compact size have made LED-based sources an ... Read more »

FEATURED

LUXTECH Offers First Compelling Flex Modules Designed to Replace Traditional Rigid Modules: LUXroll (UL Listed)

LUXTECH Offers First Compelling Flex Modules Designed to Replace Traditional Rigid Modules:  LUXroll (UL Listed) The Indirect Costs of Using Rigid Boards Make Switching to Flexible LED Modules a Compelling Choice. Read more »

EDITORIAL

New LUXEON Rubix Cyan LED Enables 96-98 CRI Across CCT Range in Color Driven Solutions for Entertainment, Stage, and Studio

New LUXEON Rubix Cyan LED Enables 96-98 CRI Across CCT Range in Color Driven Solutions for Entertainment, Stage, and Studio Lumileds added cyan, its eighth color, to the LUXEON Rubix high-power LED family enabling multi-color driven systems to produce very high CRI white light that is so important in entertainment lighting. Adding the cyan LED fills a significant wavelength gap between blue and green in a system and ... Read more »

EDITORIAL

New date: Light + Building Autumn Edition 2022

New date: Light + Building Autumn Edition 2022 Frankfurt am Main, January 10, 2022. As the pandemic situation continues to develop very dynamically, Messe Frankfurt is postponing the world's leading trade fair for light and building technology to autumn 2022. Last December, intensive discussions with customers and cooperation partners had ... Read more »

page_peel