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 »

FEATURED

High Bay LED Driver of Efficiency 95%

High Bay LED Driver of Efficiency 95% LIFUD just launched its 1ST generation of high bay driver, LF-FHBxxxYD/YE, for European market and Asian Pacific market. There’s a 12V cable reserved for connecting the driver to smart modules like sensors, Zigbee modules, DALI modules, etc. This 12V cable makes it flexible to meet various demands ... Read more »

FEATURED

Cree® XLamp® CMT LEDs Deliver up to 45 Percent Higher Lumen Density than Competition

Cree® XLamp® CMT LEDs Deliver up to 45 Percent Higher Lumen Density than Competition The new CMT LEDs extend Cree’s metal-based chip-on-board (COB) LED technology to the most prevalent COB form factors. Cree’s XLamp High Current LED Arrays provide up to 45% more lumen density and up to 17% higher efficacy, and feature an innovative metal substrate technology that delivers higher ... Read more »

FEATURED

BJB Launches Innovative Single-row LED Optic Series for Linear and Area Lighting with Slim Design and Integrated Fixing Elements

BJB Launches Innovative Single-row LED Optic Series for Linear and Area Lighting with Slim Design and Integrated Fixing Elements Optics are a critical part of the lighting system, especially when it comes to efficiency and precision beam control. Even the most efficient light sources would be rendered useless without high-quality optics. They enable the designer to extract light from the source and precisely direct it ... Read more »

FEATURED

Accredited Quality for Colorimetric Quantities

Accredited Quality for Colorimetric Quantities Since 2009 Instrument Systems has received accreditation to DIN EN ISO / IEC 17025 for photometric tests and now offers its certified measurement solutions with the flexible scope of application of Category III. Read more »

FEATURED

Smart Control with GRE’s Dimming Modules

Smart Control with GRE’s Dimming Modules Smart and sustainable technologies have been on the forefront at the international lighting events. With the advance of smart devices and return on investment requirements, the smart building is widely becoming the new standard building model. Read more »

FEATURED

Light is the Efficiency Booster

Light is the Efficiency Booster In order to cut costs while providing high-quality light, many luminaire manufacturers today rely on robust LED components and intelligent control technology from OSRAM. Our future-proof lighting systems reduce the power consumption as well as the maintenance effort. Read more »

FEATURED

A.A.G. Stucchi Presents New IP66/68 Connectors

A.A.G. Stucchi Presents New IP66/68 Connectors A.A.G. Stucchi, an Italian company and leader in the lighting components industry, is ready to present 2 new series of IP66/68 connections: 3800 series of mini connectors and 610 series of distributors. The two product series have their very compact design in common. 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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