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| About site: Electronics and Electrical/Optoelectronics and Fiber - LEDer Lighting Ltd. |
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| About site: http://www.leder.co.uk |
Title: Electronics and Electrical/Optoelectronics and Fiber - LEDer Lighting Ltd. Manufacturer of LED lighting modules for commercial, domestic and marine use, incorporating mains, battery and solar-power electronics.
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Linos_AG Germany. Parent of several companies producing diverse range of phototonic products for manufacturing, life sciences, and communication industries. Site incorporates links to detailed product and app [more]
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| Luxlink Manufactures fiber optic transmission systems that convey audio, RS-232/422/485, ECL and TTL data, IRIG time codes and industrial control signals over fiber optics. [more]
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LED Lighting design and manufacture   HomeThe CompanyContact-infoLinksOn-line ShopLed lighting design, manufacture and salesCephos has been involved in the design and manufacture of LED lighting in the U.K. since 1999, consultingwith lighting designers and architects on their external and internal architectural LED lighting requirements. Cephos can assist with pcb design for LEDs using Aluminium cored PCB’s which aid the dissipation of heat generated by high output LED’sCephos is a major electronic component supplyspecialist, including the supply of LED’s,enabling the client to take advantage of Cephos buying power to ensure low prices. Cephos can assist in the design of all types of printed circuitboards, source connectors, cables andcomponents, through to pcb assembly and testing of completed units.dictionary definition: The LED or Light Emitting Diode is an electronic semiconductor device that emits light when an electric current passes through it.LEDs are more efficient than incandescent lamps, and are fast becoming more efficient than fluorescent lamps lending themselves increasingly as general sources of light.colours: a full range of LED light colour is availablefrom Infra-red, Red through Amber and Yellow to Green and Blue andUltra-violet. device power: from pcb surface mounted sub-miniatureunits just a couple of millimetres square at around 100mW to large discretepower LEDs at several Watts which require heatsinking.Select items from our on-lineshop, LED floorlighting, LED bollards, designer LED wall lights, LED lighting kits, LEDtorches, LED accent lighting, LED plinth lighting, book reading lights and LED desk lights.     Latest LED News: HARRISBURG, Pa. – June 12, 2008: A new in-line connector from Tyco ElectronicsThis surface mounted connector is designed to make connecting of aluminium-clad printed circuit boards for LED lighting applications that include lighting controls and LED light modules faster and easier.DURHAM, N.C., MARCH 3, 2008 : Cree Completes Acquisition of LED Lighting Fixtures, Inc.This acquisition expands Cree’s market opportunity by providing direct access to the lighting market. Cree's business now encompasses LED chips, components and lighting solutions. It further enables Cree to drive retrofit solutions to convert existing lighting infrastructure to energy-efficient lighting and to accelerate the adoption of LED lighting. Editorial reviews of recommended publications /LED Lighting books featured in the on-line shopBrilliant!: Shuji Nakamura andthe Revolution in Lighting Technology By Bob JohnstoneSynopsisA revolution in the way we use artificial lighting is underway, one that isevery bit as sweeping and significant as Edison's invention of the light bulb.The technology of light emitting diodes is ready for widespreadimplementation. Its impacts will include a reduction in energy consumption forelectric lighting by up to 80 per cent. This book tells the story of ShuliNakamura, a gifted Japanese engineer who came out of nowhere to stun the worldwith his announcement that he had created the last piece in the puzzle neededfor manufacturing solid-state white lights. The invention of this holy grailproduct which promises to make the ordinary light bulb obsolete, had eludedthe best minds at the top electronics firms for 25 years. Until his startlingannouncement, Nakamura had not even been on the radar screen of most industryobservers. The author is the first Western journalist to interview Nakamuraand has received the brilliant engineer's full co-operation. He has alsointerviewed other key players in the imminent lighting revolution proving anexciting preview of the technological, entrepreneurial and artistic creativitythat will soon be unleashed by Nakamura's inventions.Power Supplies for LED Driving By Steve WinderSynopsisLight-emitting diodes are being widely used due to their efficient use of power.The applications for power LEDs include traffic lights, street lamps, automotivelighting, 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 andgenerates far too much heat. With a switching supply, the main issues are EMIand efficiency, and of course cost. The problem is to get a design that meetslegal requirements and is efficient, while costing the least. This book coversthe design trade-offs involved in LED driving applications, from low-power to UB-LEDsand beyond. It provides a practical, "hands-on" approach to powersupply design for LED drivers. It includes detailed examples of what works andwhy, throughout the design process. It provides commentary on how the calculatedcomponent value compares with the actual value used, including a description ofwhy the choice was made.Introduction toSolidState Lighting By Arturas Zukauskas, Michael S.Shur, Remis GaskaSynopsisThis is a thorough reference that sheds light on the promising field of solidstate lighting. Solid state lighting is a rapidly emerging field. Light EmittingDiodes are already used in traffic signals, signage/contour lighting, large areadisplays, and automotive applications. But its greatest future lies in thepossibility of applying solid state lamps to general lighting. Solid statelighting promises to reduce energy consumption as much as fifty percent, cutdown on carbon dioxide emission, and even spur the development of a completelynew lighting industry. Giving this important emerging field the attention itdeserves, "Introduction to Solid State Lighting" comprehensivelycovers: the history of lighting; the characterization of visible light;conventional light sources; LED basics; extraction of light from high brightnessLEDs; and white LED applications of solid state lamps.Light-Emitting DiodesBy E. Fred SchubertSynopsisRevised and fully up-dated, the second edition of this graduate textbook offersa comprehensive explanation of the technology and physics of LEDs such asinfrared, visible-spectrum, ultraviolet, and white LEDs made from III-Vsemiconductors. Elementary properties such as electrical and opticalcharacteristics are reviewed, followed by the analysis of advanced devicestructures. With nine additional chapters, the treatment of LEDs has been vastlyexpanded, including new material on device packaging, reflectors, UV LEDs, III-Vnitride materials, solid-state sources for illumination applications, andjunction temperature. Radiative and non-radiative recombination dynamics,methods for improving light extraction, high-efficiency and high-power devicedesigns, white-light emitters with wavelength-converting phosphor materials,optical reflectors, and spontaneous recombination in resonant-cavity structuresare discussed in detail. With exercises, solutions, and illustrative examples,this textbook will be of interest to scientists and engineers working on LEDsand graduate students in electrical engineering, applied physics, and materialsscience.Distributed Feedback LaserDiodes and Optical Tunable Filters By H. Ghafouri-ShirazSynopsisAdvances in optical fibre based communications systems have played a crucialrole in the development of the information highway. By offering a single modeoscillation and narrow spectral output, distributed feedback (DFB) semiconductorlaser diodes offer excellent optical light sources as well as optical filtersfor fibre based communications and dense wavelength division multiplexing (DWDM)systems. This comprehensive text focuses on the basic working principles of DFBlaser diodes and optical filters and details the development of a new techniquefor enhanced system performance. It considers the optical waveguidingcharacteristics and properties of semiconductor materials and the physics of DFBsemiconductor lasers; presents a powerful modelling technique based on thetransfer matrix method which can be used to improve the design of laser diodes,optical fibres and amplifiers; and, examines the effect of the variouscorrugation shapes on the coupling coefficients and lasing characteristics ofDFB laser diodes. It offers technical advice to improve immunity against thespatial hole burning effect; extensive referencing throughout; and acomprehensive glossary of symbols and abbreviations. It is suitable for bothintroductory and advanced levels. This is an indispensable textbook forundergraduate and postgraduate students of electrical and electronic engineeringand physics as it consolidates their knowledge in this rapidly growing field. Asa technical guide for the structural design of DFB laser diodes and opticalfilters, the book will serve as an invaluable reference for researchers in optoelectronics, and semi conductor device physics.Organic Light-emitting Devices:Synthesis, Properties and Applications By Klaus MullenSynopsisThis high-class book reflects a decade of intense research, culminating inexcellent successes over the last few years. The contributions from bothacademia as well as the industry leaders combine the fundamentals and latestresearch results with application know-how and examples of functioning displays.As a result, all the four important aspects of OLEDs are covered: syntheses ofthe organic materials; physical theory of electroluminescence and deviceefficiency; device conception and construction; and, characterization of bothmaterials and devices. The whole is naturally rounded off with a look at whatthe future holds in store. The editor, Klaus Mullen, is director of the highlyprestigious MPI for polymer research in Mainz, Germany, while the authorsinclude Nobel Laureate Alan Heeger, one of the most notable founders of thefield, Richard Friend, as well as Ching Tang, Eastman Kodak's number-one OLEDresearcher, known throughout the entire community for his key publications.Organic Light-EmittingMaterials and Devices (Optical Science and Engineering Series) ByLi ZhigangSynopsisExamining recent progress as well as future challenges, "OrganicLight-Emitting Materials and Devices" covers all aspects of OLEDs,including a systematic investigation of organic light emitting materials, devicephysics, and engineering. It presents a review of the synthesis, properties, anddevice performance of electroluminescent materials used in OLEDs and describesmanufacturing techniques such as vapor deposition and printing process,microstructural characterization, and performance measurement techniques. Italso explores the application of a Si (amorphous silicon) based backplane fororganic light emitting display and presents patent statuses of the currentinvestigated organic light emitting materials.  _uacct = "UA-3690966-2";urchinTracker();Contract ElectronicManufacturer PCB Assemblywww.cephos.com |
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Manufacturer | of | LED | lighting | modules | for | commercial, | domestic | and | marine | use, | incorporating | mains, | battery | and | solar-power | electronics. |
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http://www.leder.co.uk
LEDer Lighting Ltd. 2008 August
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Manufacturer of LED lighting modules for commercial, domestic and marine use, incorporating mains, battery and solar-power electronics.
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