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Illuminating LEDs for Projection

Illuminating LEDs for Projection

LEDs have long been considered a promising but technically challenging prospective light source for front projection displays. Indeed, LED illuminated rear screen televisions hit the consumer market a few years ago and their performance benefits were impressive: instant on, tens of thousands of hours of operational life, the production of a broader and more stable color space than traditional lamp technologies and efficient lumen-per-watt performance. The question has always been whether an LED illumination system could be bright enough to support front projection applications.

In a back corner of our exhibit at CEDIA, DP demonstrated our prototype LED illuminated single-chip projector. It is based on a bold LED concept known as Phlatlight™. More of a tightly spaced, tiny array of LEDs then a single really bright LED, the R, G and B Phlatlight™’s employed in our prototype are capable of producing thousands of raw lumens with just 360 watts of maximum illumination power. Even more interesting, the switching time of the LEDs is so fast they not only replace the traditional lamp system – they also remove the need for the motor driven color wheel, previously required by all single chip projectors. Removal of the color wheel also means removal of color wheel artifacts. For anyone sensitive to the color-wheel induced rainbow effect, eliminating that visual artifact is a huge, if not revolutionary, benefit.

Also, because the LEDs can be turned all the way off, implementations of these systems with dynamic black will be able to match CRT black levels on full-field black scenes.

Reproducible color gamut is another interesting benefit of LED illumination systems. Because the color point of the red, green and blue LEDs can be defined so precisely, they enable single-chip projectors to produce a color space and color saturation far beyond that of color-wheel based single-chip projectors (but still not on par with 3-chip systems).

With such a compelling set of benefits, one might be convinced that LED illumination is the optimum solution for every application. The barrier to that concept, and the primary reason LED illumination will have very clear limits for front and large screen rear projection applications, is total system lumen output. Our prototype produced 480 ANSI lumens on screen. While we can envision the light output increasing to 700 - 800 lumens by the time the first LED illuminated projectors are launched (late 2009), brightness gains beyond that threshold are likely to be limited and slow to emerge.

By comparison, DP offers single and dual color wheel-based single chip projectors producing 6000+ lumens today. Even our entry-level single-chip projectors produce 1500+ lumens. Of course, our three chip systems can deliver up to tens of thousands of lumens and color depth beyond any single chip solution – color wheel or LED based.

That is where we get back to the question of the future LED illuminated single-chip projector’s suitability for specific applications. When using a small to medium sized screen in a very dark to theatrically dark venue, such as a very small conference room or a small home theater, the LED illuminated displays of the future may be an extraordinary alternative. However, if the application requires a mid-size screen and the venue has any ambient light striking the screen, more lumens are required to produce imagery with high environmental dynamic range and suitable visual appeal.

Other than dedicated home theaters, the majority of single-chip projectors purchased today are employed in venues with some ambient light. As compelling as the benefits are, for that majority of front projection applications, LED will not provide a dynamic front projection solution any time soon.

Nonetheless, the ongoing evolution of LED illumination systems marks a huge improvement in single chip image quality and provides extraordinary benefits in long-term cost of ownership. As the technology progresses from working prototypes to finished products, DP’s future LED illuminated displays are certain to expand the single-chip projection marketplace. Simply stated, the technology dramatically improves the economics of employing projection systems in applications where superb color performance is required, but humble lumen output is sufficient.

Download hi-res versions of the photos above here: http://www.digitalprojection.com/news/zips/DP_LEDshots.zip

About the Author

A digital imaging pioneer and projector industry leader, Digital Projection International (DPI) manufactures and distributes an extensive and expanding line of ultra high-performance 3-chip and single-chip DLP® projection systems. These projectors are the reference standard for demanding applications such as large-venue, live-event staging, Fortune 5000, homeland security, education, medical and scientific research, command and control, digital cinema, commercial entertainment, worship and elite home theater.

Multiple company accolades include two Emmy® Awards for Outstanding Achievement in Engineering Development by the Academy of Television Arts and Sciences. DPI remains the first and only projector manufacturer to win the coveted award.

Surrounded Islands, Project for Biscane Bay, Greater Miami, Collage in Two Parts $259.99 Christo Surrounded Islands, Project for Biscane Bay, Greater Miami, Collage in Two Parts - Framed Art Print

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Openwall Project $101.96 High Quality Content by WIKIPEDIA articles The Openwall Project is a source for various software, including Openwall GNU//Linux (Owl), a securityenhanced operating system designed for servers. Openwall patches and security extensions have been included into many major Linux distributions. As the name implies, Openwall GNU//Linux draws source code and design concepts from numerous sources, most importantly to the project is its usage of the Linux kernel and parts of the GNU userland, others include the BSDs, such as OpenBSD for its OpenSSH suite and the inspiration behind its own blowfishbased crypt for password hashing, compatible with the OpenBSD implementation. Author: Surhone, Lambert M./ Timpledon, Miriam T./ Marseken, Susan F. Binding Type: Paperback Number of Pages: 154 Publication Date: 2010/08/02 Language: English Dimensions: 6.00 x 9.02 x 0.36 inches

Antigone Project $31.2 ANTIGONE PROJECT is a play in five parts by Tanya Barfield, Karen Hartman, Chiori Miyagawa, 2009 Pulitzer Prize winner Lynn Nottage, and Caridad Svich that reconsiders the story of Antigone from a variety of rich and radical perspectives. With a preface by dramatist Lisa Schlesinger and an introduction by classics scholar Marianne McDonald, this is a unique addition to contemporary drama. Author: Svich, Caridad/ Barfield, Tanya/ Hartman, Karen Binding Type: Paperback Number of Pages: 144 Publication Date: 2009/07/01 Language: English Dimensions: 9.00 x 6.00 x 0.34 inches

The Democratization Project $100 This collection of essays addresses the important challenges and opportunities presented by the democratization process and the thorough societal changes occurring in many parts of the world.

Mohole Project Expedition Which Is Studying Parts of the Earth's Core Brought Up in Drilling $79.99 Mohole Project Expedition Which Is Studying Parts of the Earth's Core Brought Up in Drilling - Premium Photographic Print

The One-Page Project Manager $19.95 The One-Page Project Manager shows you how to boil down any project into a simple, one-page document that can be used to communicate all essential details to upper management, other departments, suppliers, and audiences. This practical guide will save time and effort, helping you identify the vital parts of a project and communicate those parts and duties to other team members.

3 Step Project Ladder $102.99 3 step project ladder eliminates reach and adds comfort for easy and convenient use. Aluminum project ladder with a height of 57-3/8". Durable frame with 250-lb. capacity. Large standing platform and hand grip help the user maintain balance even when reaching or leaning. Features a built in project tray for small parts, tools, and paint cans. Mar-resistant feet are safe for a variety of surfaces.

Gower Handbook of Project Management $165 This handbook for project management practitioners gives an introduction to, and overview of, the essential knowledge required for managing projects, from the perspective of an experienced team of practitioners in the field. There are four parts:o Projects: describing the context of projects in organizations, and their natureo Performance: describing how to manage the delivery of the project, covering scope, quality, cost, time, resources, risk, etco Process: describing the project management life-cycle and each stage of ito People: describing how to manage the people working on projects.

SharePoint 2010 for Project Management $34.99 If you were to analyze your team’s performance on a typical project, you’d be surprised how much time is wasted on non-productive tasks. This hands-on guide shows you how to work more efficiently by organizing and managing projects with SharePoint 2010. You’ll learn how to build a Project Management Information System (PMIS), customized to your project, that can effectively coordinate communication and collaboration among team members. Written by a certified Project Management Professional (PMP) and Microsoft SharePoint MVP with 15 years of IT project management experience, each chapter includes step-by-step guides as well as workshops that help you practice what you learn. Build a SharePoint PMIS that requires little assistance from your IT/IS department Define access permissions for project stakeholders and team members Centralize project artifacts and keep track of document history with version control Track project schedules, control changes, and manage project risks Automate project reporting and use web parts to generate on-demand status reports Integrate project management tools such as Excel, Microsoft Project, PowerPoint, and Outlook Apply your knowledge of PMIS techniques by working with a case study throughout the book "If you are a project manager looking for a technology-based, easily implemented, and usable solution for project communications, document management, and general project organization, this book is for you!" –Susan Weese, PgMP, President and Founder, Rhyming Planet

Project of IonsaintJeanPierreFixte $68.51 High Quality Content by WIKIPEDIA articles SaintJeanPierreFixte is a commune in the EureetLoir department in northcentral France. EureetLoir is a French department, named after the Eure and Loir rivers.EureetLoir is one of the original 83 departments created during the French Revolution on March 4, 1790. It was created from parts of Orlanais, Perche, and Chartrain.EureetLoir comprises the main part of the region of Beauce, politically it belongs to the current region of Centre (Val de Loire) and is surrounded by the departments of LoiretCher, Loiret, Essonne, Yvelines, Eure, Orne, and Sarthe. Author: Surhone, Lambert M./ Timpledon, Miriam T./ Marseken, Susan F. Binding Type: Paperback Number of Pages: 80 Publication Date: 2010/07/11 Language: English Dimensions: 5.98 x 9.01 x 0.19 inches

Project Planning and Analysis $141.79 Project planning and analysis is quite essential to assess the benefits and the costs of undertaking a project and leads to the selection of the most promising project for optimum allocation of scarce natural and human resources. The monograph is derived from teaching materials developed by different scholars over years to acquaint undergraduate students with project planning and analysis techniques. However, it depicts past experiences and recent approaches to provide the general framework and basic methodology compatible to the context of developing country. The basic principles are also relevant to the context of transitional and developed countries. The monograph is organised into four major parts and nine chapters. The first part comprises the first two chapters and is devoted to the discussion of the fundamentals of project planning and analysis. The second part deals with the elements of financial analysis and constitutes three chapters. The third part builds on the financial analysis and takes the analysis to an economic one and subdivided into three chapters. The last section and last chapter focuses on the fundamentals of project monitoring and evaluation techniques. Author: Ashagrie, Ermias Binding Type: Paperback Number of Pages: 168 Publication Date: 2010/12/28 Language: English Dimensions: 6.00 x 9.02 x 0.39 inches

Parts $17.74 Parts

Mickey Parts 4-Pak $3.99 Mickey Parts 4-Pak Paper Mickey Mouse body parts foil thermography paper shines with accents and adds dimension to your project. Comes in sheets of four. Acid and lignin free. Size is approximate. Family, friends, vacation, kids, birthday, fun, scra

Improving Your Project Management Skills $15 Based on the bestselling American Management Association seminar! If a full-fledged project management course doesnÆt fit your schedule or your budget, check out the new edition of Improving Your Project Management Skills. Based on the hugely popular American Management Association seminar of the same name, this ultra-practical reference offers powerful and repeatable project initiatives that improve processes, streamline productivity, and cut costs dramatically. YouÆll get tools, tips, charts, lists, and never-fail advice for: Planning and budgeting ò Defining project scope ò Project scheduling ò Implementation ò Performance measurement ò Leadership and staff issues ò Work breakdown structures ò Alignment with business goals ò Risk assessment and management ò Communication ò Project closure ò And much more Now completely revised and updated, the book is consistent with the most recent edition of A Guide to the Project Management Body of Knowledge (PMBOK«) and includes dozens of current practices and real-world examples. Equal parts learning tool and workplace reference, Improving Your Project Management Skills puts the power of a world-class project management seminar right in your hands!

Microsoft & Project 2007 Bible $45.57 Take control of your projects with this in-depth guide Whether you`re managing a project for a small team or supervising a corporate assignment involving hundreds, the power of Microsoft Project 2007 and the detailed information in this comprehensive guide can keep you on track. From setting budgets to allocating resources to tracking results, each of the book`s seven parts thoroughly focuses on key elements in a logical sequence so you can find what you need. Identify your goals and the scope of your projects Manage projects across organizations and multiple locations Get the most out of Gantt charts and views Assign tasks, check progress, and make adjustments Issue interim reports and look at the Big Picture Create a custom HTML page with VBA and VBScript Import and export Project information What`s on the CD-ROM? You`ll find a wealth of trial versions, demo software, sample projects, and bonus appendixes on the CD-ROM, including Milestones Professional(r) - Advanced formatting, calculation, Web publishing, and reporting features PERT Chart Expert - Create eye-opening PERT chart project plans PlanView(r) Project Portfolio Management - A comprehensive decision-making platform for enterprises WBS Chart Pro - Plan your projects with these graphing tools System Requirements: See the CD-ROM Appendix for details and complete system requirements. Note: CD-ROM/DVD and other supplementary materials are not included as part of eBook file.

The Toaster Project (Paperback) $25.65 Where do our things really come from? China is the most common answer, but Thomas Thwaites decided he wanted to know more. In The Toaster Project, Thwaites asks what lies behind the smooth buttons on a mobile phone or the cushioned soles of running sneakers. What is involved in extracting and processing materials? To answer these questions, Thwaites set out to construct, from scratch, one of the most commonplace appliances in our kitchens today: a toaster. The Toaster Project takes the reader on Thwaites s journey from dismantling the cheapest toaster he can find in London to researching how to smelt metal in a fifteenth-century treatise. His incisive restrictions all parts of the toaster must be made from scratch and Thwaites had to make the toaster himself made his task difficult, but not impossible. It took nine months and cost 250 times more than the toaster he bought at the store. In the end, Thwaites reveals the true ingredients in the products we use every day. Most interesting is not the final creation but the lesson learned. The Toaster Project helps us reflect on the costs and perils of our cheap consumer culture and the ridiculousness of churning out millions of toasters and other products at the expense of the environment. If products were designed more efficiently, with fewer parts that are easier to recycle, we would end up with objects that last longer and we would generate less waste altogether. Foreword by David Crowley, head of critical writing at the Royal College of Art and curator at the Victoria and Albert Museum.

Service Parts Planning with MySAP SCM $64.95 The Service Parts Planning (SPP) solution was developed by SAP in a joint effort with Caterpillar and Ford in order to address the specific planning problems of service parts. Aimed at project members and project managers, this book explains the processes, structures, and functions of this solution.

Project Ha Ha $60.54 High Quality Content by WIKIPEDIA articles Project Ha Ha is an Irish experimental comedy television series of pilots broadcast in four parts on RTE Two in January 2009. The series showcases comedians such as Dead Cat Bounce, Diet of Worms, David McSavage and an ensemble piece featuring comedians including Bernard OShea, Collum McDonnell and Carol Tobin. The projects are produced by such companies as Blinder Films, Red Jam Productions, D.A.D.D.Y, Accomplice Productions and Green Inc Productions. Project Ha Ha aired each Monday at 22:55 from 5 24 January 2009. Two comedy groups feature in the series and their work is focused on in the first two episodes. Dead Cat Bounce are a comedy group whose blend of sketch comedy and musical performance have won them many fans and much critical acclaim. Their pilot Work focuses on a day in the life of a corporate office. It is produced by Red Jam Productions and directed by the video director duo D.A.D.D.Y. Author: Surhone, Lambert M./ Tennoe, Mariam T./ Henssonow, Susan F. Binding Type: Paperback Number of Pages: 72 Publication Date: 2010/12/09 Language: English Dimensions: 6.00 x 9.02 x 0.17 inches

The Audiophile's Project Sourcebook $29.95 Build audio projects that produce great sound for far less than they cost in the store, with audio hobbyists' favorite writer Randy Slone. In "The Audiophile's Project Sourcebook", Slone gives you - clear, illustrated schematics and instructions for high-quality, high-power electronic audio components that you can build at home; carefully constructed designs for virtually all standard high-end audio projects, backed by an author who answers his email; 8 power-amp designs that suit virtually any need; instructions for making your own inexpensive testing equipment; comprehensible explanations of the electronics at work in the projects you want to construct, spiced with humor and insight into the electronics hobbyist's process; and, complete parts lists."The Audiophile's Project Sourcebook" is devoid of the hype, superstition, myths, and expensive fanaticism often associated with 'high-end' audio systems. It provides straightforward help in building and understanding top quality audio electronic projects that are based on solid science and produce fantastic sound! It includes: balanced input driver/receiver circuits; signal conditioning techniques; voltage amplifiers; preamps for home and stage; tone controls; passive and active filters; parametric filters; graphic equalizers; bi-amping and tri-amping filters; headphone amplifiers; power amplifiers; speaker protection systems; clip detection circuits; power supplies; delay circuits; level indicators; and, homemade test equipment

Project: Happily Ever After $22.95 What do you do when your marriage is so unhappy that you begin to fantasize about your husband’s funeral? That’s how bad it got for Alisa Bowman. . . So she launched a last-ditch effort to save her marriage. Project: Happily Ever After is her fearlessly honest and humorous account of how she went from being a “divorce daydreamer” to renewing her wedding vows—and all of the steps in between. From bikini waxes to erotica, romance instruction manuals to second honeymoons, the silent treatment to power struggles, she goes where many marriage-improvement gurus have feared to tread. Equal parts funny, poignant, and most importantly, useful, Bowman’s story will give other miserably-married folks courage and hope. And in addition to telling her own story, she packs straightforward prescriptive guidance, including a “10-Step Marital Improvement Guide.” Readers will laugh. They’ll cry. And they can start on the road toward their own happy ending!

The Linux Router Project $81.25 High Quality Content by WIKIPEDIA articles The Linux Router Project (LRP) is a now defunct networkingcentric micro Linux distribution. The released versions of LRP were small enough to fit on a single 1.44MB floppy disk, and made building and maintaining routers, access servers, thin servers, thin clients, network appliances, and typically embedded systems next to trivial. LRP was conceived and primarily developed by Dave Cinege from 1997 until 2002. It began originally as a router on a floppy and evolved into a streamlined general purpose network operating system. The oldest embedded Linux distribution, LRP in whole or in part formed the basis of many other embedded system distributions and commercial products which followed it. Several parts developed or specifically enhanced for LRP are still found in common usage today such as POSIXness and BusyBox. Author: Surhone, Lambert M./ Timpledon, Miriam T./ Marseken, Susan F. Binding Type: Paperback Number of Pages: 122 Publication Date: 2010/08/02 Language: English Dimensions: 6.00 x 9.02 x 0.29 inches

Juneau Icefield Research Project (1949-1958) $155 The Juneau Icefield Research Project (JIRP) was formed to find a prototype area to study Alaska's coastal glaciers and trends in climatic change. For the past 57 years JIRP has conducted a systematic study of key receding and advancing glaciers, including Lemon Creek and Taku Glaciers. From this study, a model has been developed to study the mass balance of these glaciers and their relation to general atmospheric circulation. Taku's mass balance was expected to provide a meaningful assessment of flakier climate relations and environmental trends, specifically the increase in atmospheric trace element pollution and global warming. Juneau Icefield Research Project (1949-1958) is represented by 15 chapters, organized in four parts: Background of the Project, Early Years of the Project (1949-1952, Later Years of the Project (1953-1958), and Summation and Epilogue. After describing the Project's background, Chapters 3 through 12 cover year-by-year activities, personnel, logistics, and research of the Taku and Lemon Creek Glaciers. These chapters included day-to-day journal entries that represent a record of the informal itineraries covering the course of the study. Chapters 13 and 14 summarize glaciological findings on Taku Glacier and the status of hydrological budgets on Lemon Creek Glacier through the International Geophysical year (1957-19658). The final chapter of the text is an overview of paleoecological work by the Project in North Pacific America brought into the context of modern research with the recognition of glacier-climate cycles. * Documents the study Juneau Icefield Research Project on a year-by-year account covering activities, personnel, logistics and research * Discusses the model developed from the JIRP and explains its importance in predicting future climate changes * Presents the information with day-to-day journal entries, making the text attractive and easy to read