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: 9781466561120
  • 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

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

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.

The Saint John s Bible Psalms

  • Filename: the-saint-john-s-bible-psalms.
  • ISBN: 9780814690567
  • Release Date: 2006-02-01
  • Number of pages: 80
  • Author: Donald Jackson
  • Publisher: Liturgical Press



"A full-color reproduction of the handwritten and illuminated work, The Saint John's Bible, in seven volumes"--Provided by publisher.

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.

The Science of Imaging Second Edition

  • Filename: the-science-of-imaging-second-edition.
  • ISBN: 9781439812860
  • Release Date: 2010-11-19
  • Number of pages: 352
  • Author: Graham Saxby
  • Publisher: CRC Press



Edited and expanded to keep pace with the digital revolution, the new edition of this highly popular and critically acclaimed work provides a comprehensive exploration of imaging science. Brilliantly written and extensively illustrated, The Science of Imaging: An Introduction, Second Edition covers the fundamental laws of physics as well as the cutting-edge techniques defining current and future directions in the field. Improvements to this Edition Include: A new chapter on astronomical imaging A larger format with a wealth of illustrations Major revisions in the areas of digital imaging and modern technology Updated references with links to a wealth of online resources—including teaching material and expanded information This accessible introduction to the subject takes students on a grand tour of imaging. Starting with the fundamentals of light and basic cameras, the author journeys through television and holography to advanced scientific and medical imaging. He highlights essential formulas, while keeping the complex mathematics to a minimum. Copiously illustrated with a wealth of examples and a 16-page color insert, the text covers optics, imaging systems, materials, and image interpretation and creation in a manner that makes it easy to understand. Praise for the critically acclaimed First Edition: It's the best book I have read on the subject at this level. —Ron Graham, RPS Journal ... every student should read it, every photographer should own it, and every lecturer and journalist should know its contents inside out. —Jon Tarrant, British Journal of Photography

Handbook of Optical Metrology

  • Filename: handbook-of-optical-metrology.
  • ISBN: 1420019511
  • Release Date: 2009-02-25
  • Number of pages: 744
  • Author: Toru Yoshizawa
  • Publisher: CRC Press



The field of optical metrology offers a wealth of both practical and theoretical accomplishments, and can cite any number of academic papers recording such. However, while several books covering specific areas of optical metrology do exist, until the pages herein were researched, written, and compiled, the field lacked for a comprehensive handbook, one providing an overview of optical metrology that covers practical applications as well as fundamentals. Carefully designed to make information accessible to beginners without sacrificing academic rigor, the Handbook of Optical Metrology: Principles and Applications discusses fundamental principles and techniques before exploring practical applications. With contributions from veterans in the field, as well as from up-and-coming researchers, the Handbook offers 30 substantial and well-referenced chapters. In addition to the introductory matter, forward-thinking descriptions are included in every chapter that make this a valuable reference for all those involved with optical metrology.

Brilliant

  • Filename: brilliant.
  • ISBN: 9780547487151
  • Release Date: 2010-07-08
  • Number of pages: 368
  • Author: Jane Brox
  • Publisher: Houghton Mifflin Harcourt



Brilliant, reminiscent of Lewis Hyde’s The Gift in its reach and of Timothy Egan’s The Worst Hard Time in its haunting evocation of human lives, offers a sweeping view of a surprisingly revealing aspect of human history—from the stone lamps of the Pleistocene to the LEDs embedded in fabrics of the future. Brox plumbs the class implications of light—who had it, who didn’t—through the many centuries when crude lamps and tallow candles constricted waking hours. She convincingly portrays the hell-bent pursuit of whale oil as the first time the human desire for light thrust us toward an environmental tipping point. Only decades later, gas street lights opened up the evening hours to leisure, which changed the ways we live and sleep and the world’s ecosystems. Edison’s “tiny strip of paper that a breath would blow away” produced a light that seemed to its users all but divorced from human effort or cost. And yet, as Brox’s informative and hair-raising portrait of our current grid system shows, the cost is ever with us. Brilliant is infused with human voices, startling insights, and—only a few years before it becomes illegal to sell most incandescent light bulbs in the United States—timely questions about how our future lives will be shaped by light.

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.

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