Resources | White Papers | Horticulture | Mouser | Aug 17, 2018

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. Read more »

Resources | White Papers | Intelligent Buildings | Smart Lighting | Jun 01, 2018

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. Read more »

Resources | White Papers | IoT | Economist | Jun 01, 2018

WHITE PAPER - From The Economist: IoT-Enabled Buildings are Still in Construction

WHITE PAPER - From The Economist: IoT-Enabled Buildings are Still in Construction Facilities management companies are investing in IoT to transform buildings worldwide. Smart devices—from smart lights to sensors in soap dispensers—are providing valuable data to help companies optimize business operations, improve space utilization and more. Read more »

Resources | White Papers | IoT | Strategy | Jun 01, 2018

WHITE PAPER - 4 Key Considerations for Your IoT Strategy

WHITE PAPER - 4 Key Considerations for Your IoT Strategy The digital universe is expected to grow exponentially. Much of this data will be generated by billions of IoT devices. Do you have an IoT strategy that’s ready to take advantage of these data? Download this whitepaper and get details on the 4 key considerations for building a strong IoT foundation. Read more »

Resources | White Papers | LightingEurope | Sustainability | Nov 02, 2017

White Paper: Serviceable Luminaires in a Circular Economy from LightingEurope

White Paper: Serviceable Luminaires in a Circular Economy from LightingEurope LightingEurope is proactively exploring the business opportunities that a Circular Economy presents for the lighting industry, as well as the framework conditions required for its successful rollout in the lighting sector. This paper focuses on luminaires, services and design for serviceability and their potential for the lighting industry. Read more »

Resources | White Papers | Optics & Opt. Materials | Resins | Oct 13, 2017

White Paper: Polymeric Systems Bring Clarity to Optical Applications

White Paper: Polymeric Systems Bring Clarity to Optical Applications Some optical assembly applications require optical clarity across a certain wavelength, while others require an opaque coating. Optical grade epoxies, silicones and UV curable coatings provide the versatility to adhere well to a wide variety of substrates and display the critical performance properties required. Learn more about optical transmission, refractive indices, temperature and humidity testing, and more, plus the roles these measurements play in choosing an effective and reliable optical polymer system. Read more »

Resources | White Papers | Test Equipment | Aug 30, 2017

White Paper: FluxGage - A Photometric Test System for LED Luminaires Based on Solar Panels

White Paper: FluxGage - A Photometric Test System for LED Luminaires Based on Solar Panels We present a novel photometric test system for LED luminaires. The new photometric system called „FluxGage“ uses solar panels to detect and measure light. By placing a diffuser and a black pinhole array over a solar panels we achieve a detection surface which is also an absorber. This enables the system to be the same size as the DUT (Device Under Test), as opposed to an integrating sphere which is at least 3 times larger than the DUT. Simulations and experimental results show that this system can measure total flux with an uncertainty of 4.3%. The demonstrated system is used in 2π geometry. The system measures total flux, color parameters (CCT, CRI, chromaticity, etc.) and flicker. Read more »

Resources | White Papers | LEDs | Life-Time | Jun 16, 2017

White Paper: Extending the Life-Time of LEDs

White Paper: Extending the Life-Time of LEDs Choosing the correct protection media for LED devices to improve lifetime and performance. Read more »

Resources | White Papers | Thermal Management | Engineering | Simulation Tools | May 25, 2017

Smartcells - Enabling Fast and Accurate Electronics Thermal Design

Smartcells - Enabling Fast and Accurate Electronics Thermal Design This white paper introduces the concept of SmartCells™ in the context of Computational Fluid Dynamics (CFD) simulation software. They exist in FloTHERM XT™, a CAD enabled electronics cooling simulation tool supplied by Mentor Graphics (Ref 1). This document will explain what they are, how they differ from other meshing approaches employed in the CFD industry, and their benefits to CFD users and electronics thermal designers. Read more »

Resources | White Papers | Optics & Opt. Materials | Apr 21, 2017

White Paper: Shaping LED Diffuser Performance with Polycarbonate Materials

White Paper: Shaping LED Diffuser Performance with Polycarbonate Materials The LED lighting market continues to grow, yet consumers are accustomed to the soft white diffused light from incandescent bulbs. To speed up adoption, manufacturers are utilizing plastic materials containing diffusion additives to offset harsh LED illumination and eliminate hot spots. It’s important to choose the correct diffusion plastic to meet to meet transmission, color and UL requirements. In this paper, we examine how plastic selection, a diffusion package and color help designers achieve the desired look for their application. Read more »

Resources | White Papers | Optics & Opt. Materials | Engineering | Simulation Tools | Mar 15, 2017

White Paper: Predicting Scatter of Light Shaping Diffuser® Angles Using Luminit’s Proprietary Optical Model and OpticStudio

White Paper: Predicting Scatter of Light Shaping Diffuser® Angles Using Luminit’s Proprietary Optical Model and OpticStudio Luminit has developed a proprietary scatter model for users of Zemax. Unlike conventional optical design programs that provide bulk scatter and surface scatter models that “predict” output distribution, Luminit’s proprietary optical model accurately calculates surface effects so users can choose the Light Shaping Diffuser (LSD) angle that offers the most optimized performance. This white paper describes the characteristics of the LSD scatter model and the level of accuracy that can be achieved during this critical stage of the design cycle. Read more »

Resources | White Papers | Optics & Opt. Materials | OLEDs

Manufacturability of OLED Encapsulation and Light Extraction

Manufacturability of OLED Encapsulation and Light Extraction Applications for OLEDs in lighting are opening unique possibilities for designers; however, the organic materials make OLEDs more fragile than LEDs. A higher-index Luminit Light Shaping Diffuser® developed into a barrier film could be an excellent substrate for OLEDs, encapsulating them while simultaneously supporting them. Read more »

Resources | White Papers | Optics & Opt. Materials | Engineering | Simulation Tools

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

Complex reflector with 11 LEDs as modeled in TracePro TracePro® allows users to design, analyze, and optimize LED lighting systems using software simulation prior to building hardware. The resultant accuracy of these models depends on the accuracy of the components that make up the model. These include light source characteristics, surface and material properties, and model geometry. Read more »

Resources | White Papers | Thermal Management

WHITE PAPER: "High Intensity UV LED Sources Enabled by Next Generation Substrates"

SEM images of Nanotherm dielectric compared with anodic layers on Al substrate Thermal management of high-power UV LEDs is substantially more demanding than for white LEDs. This arises due to their lower efficacy combined with the end use requirement for intense light sources. Critical to the thermal management of densely packed LED arrays is the substrate the semiconductors are mounted on. This whitepaper investigates how next generation Nanoceramic substrates can benefit the LED industry and presents a case study of a 75W UV LED module, just 2cm². Read more »

Resources | White Papers | Light Sources | Engineering | Simulation Tools

WHITE PAPER: "Accurate LED Source Modeling Using TracePro"

Ray trace example Modern optical modeling programs allow product design engineers to create, analyze, and optimize LED sources and LED optical systems as a virtual prototype prior to manufacturing the actual product. The precision of these virtual models depends on accurately representing the components that make up the model, including the light source. Read more »

Resources | White Papers | Optics & Opt. Materials | Engineering | Simulation Tools

WHITE PAPER: "Optimization of LED Lens Components using TracePro® Illumination Design and Analysis Software"

Side Emitting lens and reflector combination initial configuration with large angular output and 62% efficiency. TracePro® is award-winning opto-mechanical design software for layout, optimization, & analysis of illumination systems. This white paper illustrates how TracePro’s 2D & 3D optimization utilities are designed to help CAD designers without optical engineering expertise design a variety of LED optical components – including practical examples. The capabilities of TracePro lead the designer through a process to maximize the technical merits of the device/system in the shortest amount of time. Read more »

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 | 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 | 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 »

White Paper | Technology | Oct 08, 2013

Why Pin Fin LED Coolers Perform Better Under Tilted Position?

For passive cooling, both, simulation and measurement results demonstrate the advanages of a pin fin design over conventional fins when tilted more than 50° For the experiment we compare the ModuLED 9980 with the LPF11180-ZHE. The ModuLED 9980 is a passive LED cooler from extruded aluminium with a diameter. of 99mm and a height of 80 millimeter, thermal resistance under vertical position 1.02°C/W. The LPF11180-ZHE is a passive LED cooler with pin fin structure with a diameter of 111mm and a height of 80mm, thermal resistance under vertical position 1.07°C/W. Read more »

White Paper | Jul 02, 2013

Alternative Calculation Method Will Improve Thermal Analysis of LEDs - by Michiel Krüger, Ph.D. - Philips Lumileds

Figure 1: LED Definition An alternative method to estimate the amount of heat generated by LEDs will help increase the accuracy and streamline the thermal analysis of white LEDs. Up until now, thermal analysis of white LEDs has been an imperfect science. Too often LED lamp and luminaire manufacturers rely on insufficient, inaccurate or intangible data to determine the thermal performance of the LEDs in their applications, and, as a result, may over-engineer their heat sink design. Read more »

Fundings & Projects | White Paper | Feb 27, 2013

NEWLED Research Project Led by the University of Dundee Aims to Revolutionize the Way the World Is Lit

"Bulb is over" was a provoking statement on LpS 2013 - NEWLED could make that reality The way the world is lit up could be revolutionised by a new European-wide research project being lead by the University of Dundee. The 11.8million Euros NEWLED project aims to develop a new generation of white light-emitting LED lights, which would be much more efficient than existing light bulbs. Read more »

White Paper | IP, Reports & Roadmaps | Jan 03, 2013

DoE Releases CALiPER 2012 Year in Review Report

The CALiPER 2012 Year in Review report contains several graphs like this one showing overall test results since 2006 The CALiPER program has tested more than 500 products since its inception in 2006, revealing a variety of performance trends, holding manufacturers accountable for claims, and identifying concerns that limit adoption. Over the past six years, the LED marketplace has changed substantially; previously relegated to niche status, LED products are now a viable alternative in many product categories and market share is expected to grow rapidly. Starting in 2012, Summary Reports focus on a single product type or application. Read more »

White Paper | Technology | Oct 10, 2012

Fan Efficiency, An Increasingly Important Selection Criteria

A typical performance plot of a 120mm size axial fan with curves for both airflow and efficiency How important is fan efficiency in the selection of a cooling system? Selecting a cooling fan is no longer about airflow and noise. The true test for a design engineer is the understanding that by selecting an efficient cooling fan system savings in cost of ownership can be realized. NMB Technologies Corporation, a Minebea Group Company, has released a new white paper on that issue. Read more »

White Paper | IP, Reports & Roadmaps | Mar 26, 2012

Research and Markets Releases "Smart Lighting 2012" Report

The Research and Markets report provides an analysis of the worldwide smart lighting market and builds on NanoMarkets’ extensive six-year experience of analyzing the solid-state lighting industry. The report shows how new value is being created in the lighting market by adding enhanced electronics and intelligent luminaires and how such product strategies will be able to build on the massive trend towards introducing CFLs, LEDs, OLEDs and other forms of energy efficient lighting. Read more »

White Paper | Technology | Dec 18, 2009

Cree Study Shows LED Lighting is Best Bet for Energy Efficiency

Comparison of the use phase and production energy consumption for various lighting technologies (Carnegie Mellon LCA). LED lighting at an efficacy of 60 lumens per watt has a comparable overall energy consumption to CFL.2 With higher efficacy LED products, A new report on the life-cycle energy usage of energy-efficient lighting by Cree, Inc. shows that LED lighting products are now more efficient than traditional lighting products when compared across the high-volume applications of recessed downlighting and display spotlighting. Evaluating light fixtures and applications, the white paper’s energy comparisons demonstrate that LEDs offer clear advantages in terms of energy costs and environmental impact over traditional lighting such as incandescent, halogen and compact fluorescent bulbs. Read more »

FEATURED

High Volume Laser Diode and VCSEL Testing

High Volume Laser Diode and VCSEL Testing Hitherto established measurement technologies for laser diodes – such as dispersive scanning spectrometry and Fourier-transform infrared spectroscopy (FTIR) – can react sensitively to a production environment. High-resolution array spectroradiometers are effective alternatives that offer multiple ... Read more »

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 »

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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