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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 highli
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 highli
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
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.
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.
Beautiful Light by internationally acclaimed lighting designer Randall Whitehead and lighting industry expert and educator Clifton Stanley Lemon is a combination of idea book, design resource, and product guide. It explores the transition in residential lighting from incandescent light sources to LEDs, and how to apply LED lighting with great success. It begins with the fundamental characteristics of light, including color temperature, color rendering, and spectral power distribution, and how LEDs differ from older light sources. Combining innovative graphics with the enduring design principles of good lighting, the book explains how to design with light layers, light people, and balance daylight and electric light. Every room of the house, as well as exterior and garden spaces, is addressed in 33 case studies of residential lighting with LEDs, with a wide variety of lighting projects in different styles. Showcasing over 200 color photographs of dramatic interiors beautifully lit with LEDs, and clear, concise descriptions of design strategies and product specifications, Beautiful Light helps both professionals and non-professionals successfully navigate the new era of LEDs in residential lighting.
Accessible for professionals and hobbyists alike, this guide helps photographers navigate the transition from traditional flash and hot lights to light-emitting diode (LED) lights, the hottest new trend in lighting technology. It demystifies the process of choosing the right LED light for projects, presents commonsense methods for using LEDs and offers suggestions for achieving the perfect lighting colour and balance. Includes examples of how to use LEDs in still life images, portraits and even moving pictures. The essential guide to the biggest new trend in photography.
The essential how-to guide to designing and building LED systems, revised and updated The second edition of Practical Lighting Design with LEDs has been revised and updated to provide the most current information for developing light-emitting diodes products. The authors, noted authorities in the field, offer a review of the most relevant topics including optical performance, materials, thermal design and modeling and measurement. Comprehensive in scope, the text covers all the information needed to design LEDs into end products. The user-friendly text also contains numerous drawings and schematics that show how things such as measurements are actually made, and show how circuits actually work. Designed to be practical, the text includes myriad notes and illustrative examples that give pointers and how-to guides on many of the book's topics. In addition, the book’s equations are used only for practical calculations, and are kept at the level of high-school algebra. This thoroughly expanded second edition offers: New chapters on the design of an LED flashlight, USB light, automotive taillight, and LED light bulbs A practical and user-friendly guide with dozens of new illustrations The nitty-gritty, day-to-day engineering and systems used to design and build complete LED systems An essential resource on the cutting-edge technology of Light-Emitting Diodes Practical Lighting Design with LEDs helps engineers and managers meet the demand for the surge in usage for products using light-emitting diodes with a practical guide that takes them through the relevant fields of light, electronic and thermal design.
"Written by internationally recognized lighting consultant Randall Whitehead, this popular easy-to-read lighting design guide offers a highly visual introduction to the fundamentals for illuminating the single-family home. Emphasizing the use of "light layering" he advocates using a combination of lighting sources to create a cohesive and versatile lighting system. The book offers advice on design tools and room-by-room lighting strategies. This Second Edition includes a new chapter on how to implement the use of energy efficient lighting design, including updated information on LED lamps, CFL's and daylightng. Also included are 32 pages of color plates demonstrating professional remodels of interior and exterior rooms; including contributions from interior designers, architects, landscape designers in collaboration with well integrated lighting design".