Understanding LED Illumination

  • Filename: understanding-led-illumination.
  • ISBN: 9781466507739
  • Release Date: 2013-08-20
  • Number of pages: 272
  • Author: M. Nisa Khan
  • Publisher: CRC Press



Understanding LED Illumination elucidates the science of lighting for light emitting diodes. It presents concepts, theory, simulations, and new design techniques that shine the spotlight on illumination, energy efficiency, and reducing electrical power consumption. The text provides an introduction to the fundamentals of LED lamp design, and highlights the principles of large-space and 3D object illumination for developing competitive LED lamps. The first part of the book discusses lamp output metrics and characterization methods, while the second part of the book explores certain retail and prototype lamp comparisons with theory, simulations and experiments It details the light propagation and distribution characteristics of LED light sources for general illumination applications, and presents design and simulation requirements for LED lamps suited for real-world applications. It also addresses light generation, efficiency, theoretical limits, efficiency limiting factors, and LED lamp design elements. Emphasizes the lighting aspects for LED lamps: quality and improvement Describes the basics of junction diode and the intricacies of compound semiconductor optoelectronic properties including the thermal, electrical, optical, and mechanical aspects Explains the challenges of LED lighting in scientific and mathematical terms Includes case studies from Osram Optosemiconductors, Sylvania, and Phillips, GE, and others The book characterizes several LED replacement lamps for household and commercial lighting and discusses a novel design for improving tubular LED replacements. It takes the mysteries out of solid-state lighting for lighting designers, and helps LED scientists and engineers effectively design their products to provide high-quality illumination.

Fundamentals of Solid State Lighting

  • Filename: fundamentals-of-solid-state-lighting.
  • ISBN: 9781466561090
  • Release Date: 2014-06-03
  • Number of pages: 604
  • Author: Vinod Kumar Khanna
  • Publisher: CRC Press



Compared to traditional electrical filaments, arc lamps, and fluorescent lamps, solid-state lighting offers higher efficiency, reliability, and environmentally friendly technology. LED / solid-state lighting is poised to take over conventional lighting due to cost savings—there is pretty much no debate about this. In response to the recent activity in this field, Fundamentals of Solid-State Lighting: LEDs, OLEDs, and Their Applications in Illumination and Displays covers a range of solid-state devices, technologies, and materials used for lighting and displays. It also examines auxiliary but critical requirements of efficient applications, such as modeling, thermal management, reliability, and smart lighting. The book discusses performance metrics of LEDs such as efficiency, efficacy, current–voltage characteristics, optical parameters like spectral distribution, color temperature, and beam angle before moving on to luminescence theory, injection luminescence, radiative and non-radiative recombination mechanisms, recombination rates, carrier lifetimes, and related topics. This lays down the groundwork for understanding LED operation. The book then discusses energy gaps, light emission, semiconductor material, special equipment, and laboratory facilities. It also covers production and applications of high-brightness LEDs (HBLEDs) and organic LEDs (OLEDs). LEDs represent the landmark development in lighting since the invention of electric lighting, allowing us to create unique, low-energy lighting solutions, not to talk about their minor maintenance expenses. The rapid strides of LED lighting technology over the last few years have changed the dynamics of the global lighting market, and LEDs are expected to be the mainstream light source in the near future. In a nutshell, the book traces the advances in LEDs, OLEDs, and their applications, and presents an up-to-date and analytical perspective of the scenario for audiences of different backgrounds and interests.

LED Packaging for Lighting Applications

  • Filename: led-packaging-for-lighting-applications.
  • ISBN: 9780470828403
  • Release Date: 2011-07-05
  • Number of pages: 320
  • Author: Sheng Liu
  • Publisher: John Wiley & Sons



Since the first light-emitting diode (LED) was invented by Holonyak and Bevacqua in 1962, LEDs have made remarkable progress in the past few decades with the rapid development of epitaxy growth, chip design and manufacture, packaging structure, processes, and packaging materials. LEDs have superior characteristics such as high efficiency, small size, long life, low power consumption, and high reliability. The market for white LED is growing rapidly in various applications. It has been widely accepted that white LEDs will be the fourth illumination source to substitute the incandescent, fluorescent, and high-pressure sodium lamps. With the development of LED chip and packaging technologies, the efficiency of high power white LED will broaden the application markets of LEDs while changing the lighting concepts of our lives. In LED Packaging for Lighting Applications, Professors Liu and Luo cover the full spectrum of design, manufacturing, and testing. Many concepts are proposed for the first time, and readers will benefit from the concurrent engineering and co-design approaches to advanced engineering design of LED products. One of the only books to cover LEDs from package design to manufacturing to testing Focuses on the design of LED packaging and its applications such as road lights Includes design methods and experiences necessary for LED engineers, especially optical and thermal design Introduces novel LED packaging structures and manufacturing processes, such as ASLP Covers reliability considerations, the most challenging problem for the LED industry Provides measurement and testing standards, which are critical for LED development, for both LED and LED fixtures Codes and demonstrations available from the book’s Companion Website This book is ideal for practicing engineers working in design or packaging at LED companies and graduate students preparing for work in industry. This book also provides a helpful introduction for advanced undergraduates, graduates, researchers, lighting designers, and product managers interested in the fundamentals of LED design and production. Color version of selected figures can be found at www.wiley.com/go/liu/led

LED Lighting

  • Filename: led-lighting.
  • ISBN: 9781449334727
  • Release Date: 2012-07-10
  • Number of pages: 70
  • Author: Sal Cangeloso
  • Publisher: "O'Reilly Media, Inc."



We’re on the brink of a lighting revolution with light-emitting diodes—the tiny LEDs you’ve seen in electronic devices for years. With this practical guide, you’ll go behind the scenes to see how and why manufacturers are now designing LED devices to light everything from homes and offices to streets and warehouses. Author Sal Cangeloso shows you the working parts of a “simple” LED bulb and explains the challenges electronics companies face as they push LED lighting into the mainstream. You’ll learn how you can use LEDs now, and why solid state lighting will bring dramatic changes in the near future. Explore the drivers, phosphors, and integrated circuits in a typical LED bulb Understand the challenges in producing LED bulbs with acceptable brightness, color temperature, and power consumption Learn about non-bulb LED applications, including lamps, street lights, and signage Discover the market forces driving—and impeding—the adoption of LED lighting Compare LEDs to compact fluorescent lamps (CFLs) and electron-stimulated luminescence (ESL) bulbs Gaze into the future of intelligent lighting, including networked lighting systems

Power Supplies for LED Driving

  • Filename: power-supplies-for-led-driving.
  • ISBN: 0080558577
  • Release Date: 2011-04-08
  • Number of pages: 248
  • Author: Steve Winder
  • Publisher: Newnes



Light-emitting diodes are being widely used due to their efficient use of power. The applications for power LEDs include traffic lights, street lamps, automotive lighting, architectural lights, household light replacements, signage lighting (replacing neon strip lights and fluorescent tubes), and many more. Powering (driving) these LED's is not always simple. Linear driving is inefficient and generates far too much heat. With a switching supply, the main issues are EMI and efficiency, and of course cost. The problem is to get a design that meets legal requirements and is efficient, while costing the least. This book covers the design trade-offs involved in LED driving applications, from low-power to UB-LEDs and beyond. * Practical, "hands-on" approach to power supply design for LED drivers * Detailed examples of what works and why, throughout the design process * Commentary on how the calculated component value compares with the actual value used, including a description of why the choice was made

Practical Lighting Design with LEDs

  • Filename: practical-lighting-design-with-leds.
  • ISBN: 9781118011737
  • Release Date: 2011-04-04
  • Number of pages: 264
  • Author: Ron Lenk
  • Publisher: John Wiley & Sons



This book covers all of the information needed to design LEDs into end-products. It is a practical guide, primarily explaining how things are done by practicing engineers. Equations are used only for practical calculations, and are kept to the level of high-school algebra. There are numerous drawings and schematics showing how things such as measurements are actually made, and showing curcuits that actually work. There are practical notes and examples embedded in the text that give pointers and how-to guides on many of the book's topics. After reading each chapter of the book, readers will have the knowledge to implement practical designs. This book will be kept as a reference tool for years to come.

The Most Important Thing Illuminated

  • Filename: the-most-important-thing-illuminated.
  • ISBN: 9780231530798
  • Release Date: 2013-08-20
  • Number of pages: 226
  • Author: Howard Marks
  • Publisher: Columbia University Press



In May of 2011, Columbia Business School Publishing released Howard Marks’ The Most Important Thing, a book that distilled the wisdom of Marks’ celebrated client memos into a single volume, making his time-tested investing philosophy available to general readers for the first time. The book was greeted with wide acclaim from investors—professional, casual, aspiring, and armchair alike—and became a business bestseller. Now, Columbia Business School Publishing is proud to announce an innovative digital edition that allows you to read Marks’ words alongside comments, insights and counterpoints from four other renowned investors and investment educators: Christopher Davis, Joel Greenblatt, Paul Johnson and Seth Klarman. See what these investors think of such concepts as "second-level thinking," the price/value relationship, patient opportunism, and defensive investing. There are also annotations from Howard Marks himself, highlighting some of the themes that run throughout the book, along with a previously unpublished bonus chapter on the importance of reasonable expectations. This edition features a foreword from Bruce Greenwald. Whether you’ve already read The Most Important Thing cover to cover or are new to the book, The Most Important Thing Illuminated will give you an unprecedented look into how America’s top investors make decisions and achieve financial success.

LED Lighting

  • Filename: led-lighting.
  • ISBN: 9783527670161
  • Release Date: 2014-11-24
  • Number of pages: 350
  • Author: T. Q. Khan
  • Publisher: John Wiley & Sons



Promoting the design, application and evaluation of visually and electrically effective LED light sources and luminaires for general indoor lighting as well as outdoor and vehicle lighting, this book combines the knowledge of LED lighting technology with human perceptual aspects for lighting scientists and engineers. After an introduction to the human visual system and current radiometry, photometry and color science, the basics of LED chip and phosphor technology are described followed by specific issues of LED radiometry and the optical, thermal and electric modeling of LEDs. This is supplemented by the relevant practical issues of pulsed LEDs, remote phosphor LEDs and the aging of LED light sources. Relevant human visual aspects closely related to LED technology are described in detail for the photopic and the mesopic range of vision, including color rendering, binning, whiteness, Circadian issues, as well as flicker perception, brightness, visual performance, conspicuity and disability glare. The topic of LED luminaires is discussed in a separate chapter, including retrofit LED lamps, LED-based road and street luminaires and LED luminaires for museum and school lighting. Specific sections are devoted to the modularity of LED luminaires, their aging and the planning and evaluation methods of new LED installations. The whole is rounded off by a summary and a look towards future developments.

Everything Is Illuminated

  • Filename: everything-is-illuminated.
  • ISBN: 0547523785
  • Release Date: 2013-09-03
  • Number of pages: 288
  • Author: Jonathan Safran Foer
  • Publisher: Houghton Mifflin Harcourt



“Imagine a novel as verbally cunning as A Clockwork Orange, as harrowing as The Painted Bird, as exuberant and twee as Candide, and you have Everything Is Illuminated . . . Read it, and you'll feel altered, chastened — seared in the fire of something new.” — Washington Post With only a yellowing photograph in hand, a young man — also named Jonathan Safran Foer — sets out to find the woman who might or might not have saved his grandfather from the Nazis. Accompanied by an old man haunted by memories of the war, an amorous dog named Sammy Davis, Junior, Junior, and the unforgettable Alex, a young Ukrainian translator who speaks in a sublimely butchered English, Jonathan is led on a quixotic journey over a devastated landscape and into an unexpected past. As their adventure unfolds, Jonathan imagines the history of his grandfather’s village, conjuring a magical fable of startling symmetries that unite generations across time. As his search moves back in time, the fantastical history moves forward, until reality collides with fiction in a heart-stopping scene of extraordinary power. “A rambunctious tour de force of inventive and intelligent storytelling . . . Foer can place his reader’s hand on the heart of human experience, the transcendent beauty of human connections. Read, you can feel the life beating.” — Philadelphia Inquirer

Understanding Watchman Nee

  • Filename: understanding-watchman-nee.
  • ISBN: 9781630875732
  • Release Date: 2012-04-01
  • Number of pages: 284
  • Author: Dongsheng John Wu
  • Publisher: Wipf and Stock Publishers



This book situates Nee's view within the rich heritage of the Protestant, Catholic, and Eastern Orthodox spiritual traditions, and thus renders Nee's thought more intelligible to Christians of both evangelical and more liberal persuasions. In this book Dongsheng John Wu examines Watchman Nee's thought on the spiritual life, focusing on the relationship between spiritual formation and spiritual knowledge. Different ways of acquiring spiritual understanding are explored, including the respective roles of divine illumination, intellectual studies, and life circumstances. Understanding Watchman Nee begins by synthesizing strategic aspects of Nee's teachings as well as formative events and sources in the development of Nee's own spirituality and theology. It then utilizes the critical work of contemporary theologian Mark McIntosh to bring Nee's voice into dialogue with some important figures in the history of Christian spirituality. Such interactions reveal that Nee's crucial theological convictions exhibit strong parallels with related themes found in the church's spiritual or mystical treasures.

Starch

  • Filename: starch.
  • ISBN: 1600212271
  • Release Date: 2006-01-01
  • Number of pages: 315
  • Author: Vladimir P. Yuryev
  • Publisher: Nova Publishers



The history of starches and investigations of starch containing raw materials goes back many centuries, (ii) steady progress in the understanding of processing and modification processes of starches awaits further elucidation. Fortunately, the cluster model of native starch granules is now generally accepted. The remaining problems concerning physics and chemistry, biochemistry and genetics, and processing and modification of starches are dealt with annually at different conferences and symposiums by experts in various fields. The numerous questions concerning structural organisation of starch granules, their behaviour in different thermodynamic conditions (temperature, water content, pressure) during biosynthesis and in different solvents at processing of both starch and starch containing raw material deserve further study because they are not yet entirely understood.

The Breakthrough Experience

  • Filename: the-breakthrough-experience.
  • ISBN: 9781401930233
  • Release Date: 2002-03-01
  • Number of pages: 271
  • Author: John F. DeMartini
  • Publisher: Hay House, Inc



This book is about breaking through the barriers that keep us from experiencing our true nature as light. It presents inspiring science and philosophy in a way that is completely accessible to anyone, to reveal and explore the universal laws and principles that underlie our very existence. Those principles are set forth in extraordinary but true stories of ordinary people having astonishing and moving life experiences, and they make the most profound concepts easily understood. Most important, it is an extremely real and practical manual for understanding why we live the way we do, and how to.

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