Light Emitting Diode Efficiency

Which Indian company has formed joint venture with the Latin American Football Corporation to focus on the luc?

Instead of using a filament as the lighting source, like in conventional electric bulbs...

Or gases, like in halogen and fluorescent light bulbs...

This technology shines brighter by using light-emitting diodes or LEDs as the source of illumination.

You may think of LEDs as those little digital displays in pocket calculators and on other electronic devices.

But large LEDs in fact generate an extremely bright light with minimal energy consumption.

The greater efficiency of LEDs reduces the energy demand of lighting systems. And in addition, the LED bulbs also have a longer life.

So overall, replacing conventional light bulbs with LED lighting can cut energy consumption by as much as 90%:

MIC Electronics....It is trading at 39...there was a stock split so it is available at this price....

Second company on their list (equitymaster's) was USHA Martin....

Not too sure about the third company they mentioned in the list....

LightEmitting Diode $68.51 Light emitting diode. Oleg Losev, List of LED failure modes, Organic light emitting diode, Miniature light emitting diode, Solid state lighting, LED lamp, LED power sources, Electrical polarity of LEDs, LED circuit, LED as light sensor Author: Miller, Frederic P./ Vandome, Agnes F./ McBrewster, John Binding Type: Paperback Number of Pages: 74 Publication Date: 2009/10/08 Language: English Dimensions: 5.98 x 9.01 x 0.17 inches

Introduction to Light Emitting Diode Technology and Applications $71.13 No Synopsis Available

Organic Light Emitting Diodes (Hardcover) $385.4 Addressing the development of the organic light emitting diode (OLED) based on rare-earth and transition-metal complexes—Europium, Terbium, Ruthenium, and Rhenium—this unique perspective explains how these materials can be used to build organic-LEDs, from chemistry synthesis to device operation and the related charge transfer and confinement. Examining how organic materials can be used to build organic-LEDs, the relationship between the chemistry molecule "design," and state-of-the-art and expected pathways, this intelligent report provides intensive experimental results for scientists and engineers working in this new OLED framework, while maintaining a didactic utility for graduation students and teachers studying optoelectronics.

Light-Emitting Diodes (Hardcover) $186.1 Revised and fully up-dated, the second edition of this graduate textbook offers a comprehensive explanation of the technology and physics of LEDs such as infrared, visible-spectrum, ultraviolet, and white LEDs made from III-V semiconductors. Elementary properties such as electrical and optical characteristics are reviewed, followed by the analysis of advanced device structures. With nine additional chapters, the treatment of LEDs has been vastly expanded, including new material on device packaging, reflectors, UV LEDs, III-V nitride materials, solid-state sources for illumination applications, and junction temperature. Radiative and non-radiative recombination dynamics, methods for improving light extraction, high-efficiency and high-power device designs, white-light emitters with wavelength-converting phosphor materials, optical reflectors, and spontaneous recombination in resonant-cavity structures are discussed in detail. With exercises, solutions, and illustrative examples, this textbook will be of interest to scientists and engineers working on LEDs and graduate students in electrical engineering, applied physics, and materials science.

Polymer Light Emitting Diodes Based on Polyfluorenes $138.61 This work is devoted to the study on Polymer Light Emitting Diodes (PLEDs) based on polyfluorenes, a promising class of semiconductive polymers for lightemitting diode applications. It covers theories of PLEDs, literature overview of polyfluorenebased lightemitting diodes, as well as research results by the authors. In this study, several types of PLED devices based on neat polyfluorenes or polyfluorene blends were designed, fabricated, and characterized. The electrical characteristics of two neat polyfluorenes were simulated via using space charge limited current theory for the holeonly case and/or exploiting a commercial software package. Author: Zhang, Qiushu/ Zivanovic, Sandra Binding Type: Paperback Number of Pages: 164 Publication Date: 2010/08/16 Language: English Dimensions: 5.98 x 9.01 x 0.37 inches

Pacer 20 Diode LED Light $15.95 LED (Light Emitting Diode) lighting gives extra brightness and longer life than conventional bulbs. Pacer's LED Light Kit works well when a light with extra length is needed. It is actually 12 LED lights within 1 larger light. The compact, slimline design allows a great variety of mounting location options. Includes one light. Mounts with two-sided tape Simple two wire installation Long life Low power draw Each light is 8'' L x 5/8'' W x 3/4'' H. Available in Red, Amber, White and Blue* *White and blue lights are an additional $6.00

Pacer 12 Diode LED Light $12.95 LED (Light Emitting Diode) lighting gives extra brightness and longer life than conventional bulbs. Pacer's LED Light Kit works well as a third brake or turn signal indicator. It is actually 12 LED lights within 1 larger light. The compact, slimline design allows a great variety of mounting location options. Includes one light. Mounts with two-sided tape Simple two wire installation Long life Low power draw Each light is 4 5/8'' L x 7/16'' W x 3/4'' H. Available in Red, Amber, White and Blue* *White and blue lights are an additional $2.00

Light-Emitting Diode Pioneers : Nick Holonyak, Isamu Akasaki, Oleg Losev, H. J. Round, Shuji Nakamura $7.7 No Synopsis Available

Fundamentals of High-Efficiency OLEDS: Basic Science to Manufacturing of Organic Light-Emitting Diodes $126.7 No Synopsis Available

Light-Emitting Diode Manufacturers : Philips Lumileds Lighting Company, Osram Opto Semiconductors Gmbh, Neopac, Cree Inc. , Nichia Corporation $8.81 No Synopsis Available

Light Emitting Silicon for Microphotonics $380.76 A fascinating insight into the stateoftheart in silicon microphotonics and on what we can expect in the near future. The book presents an overview of the current understanding of getting light from silicon. It concentrates mainly on low dimensional silicon structures, like quantum dots, wires and wells, but covers also alternative approaches like porous silicon and the doping of silicon with rareearths. The emphasis is on the experimental and theoretical achievements concerning the optoelectronic properties of confined silicon structures obtained during recent years. Silicon based photonic crystals are in particular considered. An in depth discussion of the route towards a silicon laser is presented. Author: Ossicini, Stephano/ Ossicini, S./ Pavesi, L. Series Title: Springer Tracts in Modern Physics (Hardcover) Series Number: 194 Binding Type: Hardcover Number of Pages: 294 Publication Date: 2004/01/12 Language: English Dimensions: 9.21 x 6.14 x 0.69 inches

Light-Emitting Diodes $87.75 No Synopsis Available

Advances in Light Emitting Materials $224.25 No Synopsis Available

CarbazoleBased Emitting Compounds $141.79 Carbazole is a heterocyclic tricyclic aromatic organic compound consisting of two sixmembered benzene rings fused on either side of a fivemembered nitrogencontaining ring. A large number of carbazole derivatives have been designed and synthesized and organic electronic devices based on these derivatives such as organic light emitting diodes (OLEDs), have been investigated. The optical and electrical properties of carbazoles are affected by substitution on the 2, 3, 6, 7 and 9Hpositions. Many carbazole derivatives have sufficiently high triplet energy to make them an efficient host where they can serve as red, green, or blue triplet emitters. Highly fluorescent and stable carbazolebased compounds were synthesized and characterized. Substitution of carbazoles at 3 and 6 position by tertbutyl group enhanced the solubility. Suitably susbtituted carbazoles form highly stable fluorescent organic nanoparticles. The emission of these nanoparticles was reversibly switched on/off in the bluegreen and orangered regions from a change in the ratio of the tetrahydrofuran/water system used in their preparation. Author: Adhikari, Ravi/ Neckers, Dr Douglas C. Binding Type: Paperback Number of Pages: 192 Publication Date: 2010/05/05 Language: English Dimensions: 5.98 x 9.01 x 0.44 inches

Light-emitting Diodes and Optoelectronics (Hardcover) $369.61 Description not available.

Advances in Organic Light-Emitting Device $113.1 No Synopsis Available

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Using Light Emitting Diode Arrays as Touch-Sensitive Input and Output Devices (Scott Hudson)

‘Increasing Brightness' Of Led Light

LED Light or Light-Emitting-Diode is a semiconductor device that functions by converting electricity into light. LED Light has been in existence since 60 years; however it has become quite popular as an energy-saving lighting source only recently. As the market for the LED light increases, more efficient and advanced devices are being introduced in the market. Today, LED lights that can offer efficiency as high as 160 lumens, are available in the market. These energy-efficient LED lights devices are being increasingly preferred for different purposes, including residential lighting, office illumination, and lighting in public areas.

The lower eye-friendly brightness of the LED light can be attributed to the usage of low-pressured sodium lights in the device. An example of sodium lights are the bulbs that are used in street lamps. The earlier LED lights were capable of emitting white light only by using the colours blue, red, and green. The white light was emitted by controlling the current transmitted to each colour. However; in 1993, an innovative process by Nichia to emit white light gave a more inexpensive method to generate the white light. The process used a blue indium gallium chip coated with phosphor to generate a wave shift necessary for white light emission from a single diode.

LED light employs the energy generated by the movement of the electrons to generate light. The diodes in LED light are 1/4 th" in diameter each with each consuming about 10 milliamps to emit light at a power of 1/10th of a watt. Light produced by the mechanism of electron movement is more efficient compared to the conventional method that requires fragile filaments to emit light. The possibility of these filaments being broken is more.

Though LEDs are small, grouping of two or more LED lights makes them efficient for use in high intensity applications. LED fixtures have drivers, usually built into them, which enable the fixtures to run on standard power capacity, with a power loss of just 15-20%.

LED light used for residential purposes has an efficiency of about 20 lumens/ watt. The average light emitted by a LED light is more when compared to that of an incandescent light, which exhibits an efficiency of about 15 lumens/ watt. In addition, LED light does not emit as much heat as the conventional bulb. Hence; it can be for diverse applications.

LEDs are also durable than conventional bulbs, the reason for this being the usage of plastic bulbs as containers for the diodes, which generate power in LED lights. These plastic containers are efficient in protecting the diodes. Another characteristic of LED lights attributing to their increasing popularity is their lower power consumption; a LED light consumes 1/3rd less power than conventional bulbs.

LEDs exhibit great unidirectional lighting capability than fluorescent and incandescent bulbs. This means that lighting provided by a LED light when focused on a single direction is efficient than that provided by its conventional counterparts. This capability proves useful in many applications, including illumination of hallways, staircases, art lighting, overhead lighting, landscape lighting, linear lighting (as in lighting areas under kitchen cabinets) and tree-lighting. With advancement in technology, more advanced versions of LED lights are being introduced. With people becoming more and more energy-conscious, the usage of LED lights continues to as increase.

About the Author

This article was written by the Mark Moore. You can find more about LED lights at MyBlackfire.com