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| STORIES ABOUT: LED |
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| Plastic Laser Diodes - One Step Closer to Reality |  | Typical laser diodes generally found in optical storing devices such as Blu-ray, DVD and CD players are currently being fabricated out of inorganic semiconductors like gallium arsenide, gallium nitride and other semiconductor alloys related to them. Now, researchers have demonstrated a class of plastic semiconductor materials that may be used in the future to manufacture electrically-powered plastic laser diodes.
A semiconductor is a m ... [read more >>] | | 27 May 2008, 05:28GMT | (c) 2008 Softpedia |
| LEDs Channel Light Exactly Where Needed |  | Light emitting diodes, or LEDs, are amongst the most efficient light sources ever developed. In terms of energy efficiency, light emitting diodes are capable of producing the optical output of an incandescent light bulb, by consuming one hundred times less energy. The problem is that LEDs can't compete with incandescent light bulbs when it comes to high light outputs.
One way to correct this at relatively low costs would ... [read more >>] | | 14 May 2008, 10:35GMT | (c) 2008 Softpedia |
| LED's Powered by Nano-needles |  | Gallium-arsenide semiconductor material is to optoelectronic devices much like silicon to computer microprocessors and microchips. However, while silicon processes electronic signals, gallium-arsenide is used to convert electric energy into light. Basically, any light emitting diode and LED laser works on the basis of a tiny gallium-arsenide semiconductor chip.
The tendency today is to boost the electric energy to light conve ... [read more >>] | | 23 April 2008, 06:39GMT | (c) 2008 Softpedia |
| Why are Fluorescent Light Bulbs Dangerous? |  | It's not big deal when a light bulb breaks. Albeit while talking about tubular fluorescent light bulbs, things can take a very serious turn, mostly because these types of light sources contain small amounts of mercury. If the glass tube is broken, then the mercury can contaminate the environment, not a very good perspective considering that mercury is highly toxic.
In fluorescent tubes, mercury is used in vapor or powder state, in ... [read more >>] | | 11 April 2008, 05:09GMT | (c) 2008 Softpedia |
| How LEDs Work |  | Light emitting diodes, or most commonly known as LEDs, are solid-state electronic devices used to produce light. Practically LEDs are a special type of diodes encased into tiny transparent plastic bulbs, which emit light when powered. Unlike traditional light bulbs and fluorescent tubes, LEDs do not use metal filaments, do not heat up to considerable temperatures, nor do they burn out. The semiconductor p-n junction is solely responsible f ... [read more >>] | | 09 April 2008, 10:48GMT | (c) 2008 Softpedia |
| How TV-B-Gone Works |  | TV-B-Gone (television be gone) is a simple universal remote control that, as its name states, has the capability of turning off all types of televisions controlled through infrared remotes. The device was created by Mitch Altman and was presumably invented for turning off televisions located in public areas that distract people from common activities. Although Altman sells his device through his company in the form of a key-chain ... [read more >>] | | 07 April 2008, 06:32GMT | (c) 2008 Softpedia |
| Intelligent Brake Lights Could Save Your Life |  | The messages sent by brake lights to the driver behind bear a small resemblance to the binary code used by computers. But as we all know, the binary code is hardly the perfect communication language. For example, when you press the brake pedal, the break lights signal to the cars behind your intention to stop, except that no additional information is given, such as whether the car is slowing down or you are executing an emergency brake.
... [read more >>] | | 27 March 2008, 10:08GMT | (c) 2008 Softpedia |
| Latest LED Crop Packs Nanowires |  | LEDs have been in our lives for some time now. They are more efficient than any other lighting device before them, can produce any desired color and have a life span much longer than that of light bulbs and fluorescent tubes. However, they are still imperfect. For example, light-emitting diodes currently present on the market give off a harsh glow of light, mostly due to the fact that they are not able to correctly filter several frequenci ... [read more >>] | | 24 March 2008, 09:38GMT | (c) 2008 Softpedia |
| Blu-Ray Gets Nailed to the Cross Due to Patent Infringements |  | Blu-Ray, the next king in the high-definition industry might get some serious issues because of Sony's alleged patent infringement related to Blu-ray disc players and other products. According to the U.S. International Trade Commission, the patent infringement may lead to blocks against importing Blu-ray technology, cellphones as well as other storage media.
According to the Commission, the problem lies in a complaint fil ... [read more >>] | | 21 March 2008, 11:35GMT | (c) 2008 Softpedia |
| Small Light Bulb Overpowers LEDs |  | Behold the new LIFI 4000, the light plasma bulb the size of a Tic-Tac and capable of producing even more light than a typical gas discharge light bulb! The new plasma bulb has been developed by the Luxim Corporation, a company located in Sunnyvale, California, specialized in lighting technologies. Luxim promises to bring intense long-life light output for projection displays and a complete light spectrum to create a vivid image quality.
... [read more >>] | | 21 March 2008, 08:09GMT | (c) 2008 Softpedia |
| Blue LEDs Can Reduce Fatigue |  | Or at least that's what U.S. researchers say. Night drivers often lose their alertness because of fatigue, however blue lights, or blue light-emitting diodes, are believed to fool the brain into believing that it is morning, when in fact it is the middle of the night, thus resetting the body's natural clock. Recent studies have revealed that up to 30 percent of the fatal accidents involve large trucks, half of them taking place i ... [read more >>] | | 18 March 2008, 11:55GMT | (c) 2008 Softpedia |
| You Will Hurl on Command, No Doubt About It! |  | We don't need no guns! Why kill somebody with a riffle, when you could starve him to death? That's right, consider the options. Remember the myth of the brown note? It was saying something like this: a particular low frequency note – below 20 Hz – can make you crap your pants. Well, it was proven by the Myth Busters to be false, however this doesn't mean that the US government is giving up so easily. They have just developed ... [read more >>] | | 08 March 2008, 06:00GMT | (c) 2008 Softpedia |
| Solid State Devices Will Completely Replace Light Bulbs |  | In 1879, Thomas Alva Edison invented the first electric light bulb using a carbon filament, only to receive the patent for his invention two months later. In was the greatest invention of the 19th century, but although the materials used to construct the light bulb changed slightly over the years, its design remained largely unchanged. This is even more surprising, considering that the traditional light bulb is only 5 percent eff ... [read more >>] | | 07 March 2008, 05:29GMT | (c) 2008 Softpedia |
| New LED Design Revealed! |  | Light emitting diodes are taking over our lives, whether you like it or not. They can be found almost everywhere starting with your average mobile cellular phone, to indoor lighting solution, lasers and even liquid crystal displays and televisions. However, although being extremely energy efficient, small and resilient enough to be incorporated into a wide range of applications, scientists are still not satisfied and argue they c ... [read more >>] | | 29 February 2008, 06:01GMT | (c) 2008 Softpedia |
| LED Startups Are Silently Working On Blu-Ray Killer |  | The battle format is about to end with a double-knockout, as two famous LED technology developer companies are cooking a new successor to rule over high-definition formats. Just as we thought Blu-Ray is about to become the next stable standard, Kaai and Soraa are trying to develop lasers and LEDs that will change once again the Hi-Def storage market.
The two startups are stealthily cooking new types of optical technology to re ... [read more >>] | | 13 February 2008, 04:38GMT | (c) 2008 Softpedia |
| Nanocrystal-Coated LEDs Emit Pure White Light |  | LEDs are some of the most efficient energy conversion devices available on the market today. No only that, but they can also be made to shine a wide range of different colors in the visible and infrared spectrum, and have way longer lives than traditional light bulbs and florescent tubes. This is mostly why LEDs are considered to be the future of efficient lighting, helping reduce the electric energy consumption, thus the carbon dioxide an ... [read more >>] | | 02 February 2008, 03:58GMT | (c) 2008 Softpedia |
| What Is a Solid-State Device? |  | The term solid-state device is mostly associated with electronic components. Almost all the electronic equipments we use today are composed of solid-state electronic devices. The word 'solid' refers to the fact that inside the electronic component there is no mechanical action taking place. The expression originated somewhere in the late 1950s, during the transition period from vacuum tube technology to semiconductor diodes and t ... [read more >>] | | 24 January 2008, 11:06GMT | (c) 2008 Softpedia |
| Quantum LEDs - 'Nervous' Tic-Free! |  | Solid-state light emitting devices have great versatility, as they produce intense light, a great variety of colors, and can use tunable power sources. On the other hand, they share a dirty little secret. The semiconductor nanostructure tends to emit light in pulses, blinking on and off as the lights in a Christmas tree, which can be pretty annoying and also reduces their range of possible applications.
JILA, a collaboration between re ... [read more >>] | | 24 January 2008, 07:44GMT | (c) 2008 Softpedia |
| LED's Outpower QDLED's |  | LED, or light emitting diodes, are recognized for their properties of providing low power, color rich, long lived lighting sources, however they might already be out of date, as recently a new type of LED has been designed, by using the quantum-dot technology. It seems that the new quantum-dot LED, or QDLED, is far better than its cousin, thus providing increased clarity and richer colors, and cheaper means to construct them.
A quantum ... [read more >>] | | 10 December 2007, 10:57GMT | (c) 2008 Softpedia |
| LEDs Can Create Any Desired Color |  | The LED or Light-Emitting Diode was first discovered in the early 20th century, when various scientists from all over the world, working in similar science areas, noticed that a semiconductor junction could produce light when an electric current was applied. A LED emits incoherent narrow-spectrum light when electrically biased in the forward direction of the p-n junction, an effect known as electroluminescence.
A LED is a bas ... [read more >>] | | 29 October 2007, 04:22GMT | (c) 2008 Softpedia |
| Ultimate Dude's Wallet! USB Flash Card MP3 Player Inside... |  | If you're looking for an MP3 player to fit in your wallet, then the USB Flash Card MP3 Player should be the perfect device. It is not only fashionable and stylish, but it can also be used as a Mass Storage Device. The best thing about it is the fact that it is just about the size of a credit card, so it can easily be kept in a pocket.
Just to make an idea about it, I should tell you the player measures 85.5x54x4.5mm and ... [read more >>] | | 27 September 2007, 03:30GMT | (c) 2008 Softpedia |
| The Plastic Laser Lights Up the Future |  | A new solid state laser could provide novel environmentally friendly lighting solutions, by using high-efficiency fluorescent laser dyes in a high temperature co-polymer matrix. Solid state laser use a solid gain medium, like glass or a crystalline host material, but this one uses a new one, plastic.
The self-healing polymeric cross-linked gain medium uses the highly efficient fluorescent laser dyes in a new patented technolo ... [read more >>] | | 23 July 2007, 10:29GMT | (c) 2008 Softpedia |
| First Nanoscale UV LEDs Ever Produced |  | A light-emitting diode (LED) is a semiconductor device that emits incoherent narrow-spectrum light through a form of electroluminescence. LEDs are small extended sources with extra optics added to the chip, which emit a complex intensity spatial distribution. The color of the emitted light depends on the composition and condition of the semiconducting material used and can be infrared, visible or near-ultraviolet.
Now, for the first t ... [read more >>] | | 28 May 2007, 15:31GMT | (c) 2008 Softpedia |
| New Two-Color LED For High-Resolution Displays |  | The first Light-Emitting Diodes (LEDs) were produced in the mid 1920s and have been used extensively ever since, in electronic applications around the world, like lights and signals for traffic, railroads, cars, flashlights and generally every appliance that needs a light source.
The color of the emitted light depends on the composition and condition of the semiconducting material used and can be infrared, visible or near-ultraviolet, ... [read more >>] | | 26 May 2007, 07:18GMT | (c) 2008 Softpedia |
| New TV Sets Have the Brightest, Most Beautiful Colors Possible for a Lot Less Money |  | Next generation LEDs greatly improve the image quality on flat-screen TV sets in terms of color, contrast and high definition, just in time for the upcoming NBA finals.
The electronics industry is involved in a continuous race to make LEDs that make today’s TV screens and cell phones more efficient, cheaper and with a higher quality.
It also happens to be the obsession of materials science and engineering professor Yang Yang and his ... [read more >>] | | 17 May 2007, 12:47GMT | (c) 2008 Softpedia |
| LED Capsule Message Clock: "Hey Honey, I crashed the Car Yesterday!” |  | I'm positive you've seen tons of weird clocks. Remember Clocky, the alarm clock that rolls under your bed in order to make you get up and stop the alarm? Well, this is nothing like that. Don't be misled by its shape because this clock is not going to torment you until you get up.
The LED Capsule message clock is not even an alarm clock, so relax! Care for a massage? Sorry, care for a warm good morning message? Done! SUC ... [read more >>] | | 03 May 2007, 13:51GMT | (c) 2008 Softpedia |
| Head Lite Cap for Day Sleepers |  | If you don't like flashlights or can't use one because you're too busy digging a hole to hide an ax or something, you may prefer a device similar to a miner's headgear with built-in headlights. If miner headgears with embedded lights proved to be pretty useful in obscure environments, why don't you let the Head Lite Cap make your night.
The Head Lite Cap is not just an ordinary cap. It comes with a t ... [read more >>] | | 01 May 2007, 09:14GMT | (c) 2008 Softpedia |
| The First PC Programmable Flashlight |  | I'm pretty sure fans of flashlights weren't prepared for this: the World's first PC programmable flashlight.
The snappily named Angus Noble Indium Smart Flashlight is user configurable and can be connected via USB to your PC.
Finally (cough), programming new flashlight settings from your computer is now possible. Choose the Star Wars Sword setting so you can make it look like Obi-Wan's laser-sword. No, ... [read more >>] | | 28 April 2007, 11:41GMT | (c) 2008 Softpedia |
| Philips Lumileds Get a Needed Upgrade |  | When it comes to innovations that have made a serious damage, or have been good for the world, Philips has its share of the blame/congratulations. They are in a big way responsible for the comeback that LED’s have made into the computer industry. Regarded as simple efficient ways of lighting up Christmas trees or serving as light bulbs replacements for flashlights, their usefulness didn’t go past a certain evolutionary stage, pr ... [read more >>] | | 27 April 2007, 10:19GMT | (c) 2008 Softpedia |
| Low-Energy LED Lighting for Streets and Buildings |  | A light-emitting diode (LED) is a semiconductor device that emits incoherent narrow-spectrum light through a form of electroluminescence. LEDs are small extended sources with extra optics added to the chip, which emit a complex intensity spatial distribution. The color of the emitted light depends on the composition and condition of the semiconducting material used and can be infrared, visible or near-ultraviolet.
The Departm ... [read more >>] | | 27 April 2007, 08:36GMT | (c) 2008 Softpedia |
| Nanobots Get Propulsion System |  | Nanotechnology and the study of very small robots that could one day do a lot of good has been one important aspect for a number of researchers and the applications in which these robots could be used are many. A similar process has begun in the computer industry with the introduction of smaller and yet smaller components and chips.
If you think about a nanobot, it's supposed to be a very small robot with an operating dev ... [read more >>] | | 21 March 2007, 06:11GMT | (c) 2008 Softpedia |
| Samsung Introduces 30-inch LED Backlit Monitor |  | While at CeBIT we see all of the new technologies, gadgets and computer products, Samsung doesn't part farther from this line. A lot of new products from this company are being showcased on the trade fair, and their 30-inch SuncMaster XL30 is just one of these.
Light Emitting Diodes (LEDs) have recently been a subject of interest since the development of brighter, more powerful LEDs. This technology is set to replace the ... [read more >>] | | 16 March 2007, 05:17GMT | (c) 2008 Softpedia |
| Ping – Pong Animated T-shirt |  | An article on Think Geek today shows just how many crazy yet ingenious ideas are out there. Sure you've thought it was easy even for you to make a T-shirt with LEDs and probably even made one. Probably even worn one. Let's not go that far. But have you ever thought of a T- ... [read more >>] | | 14 March 2007, 08:26GMT | (c) 2008 Softpedia |
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