“LED” stands for ‘Light Emitting Diode.” But this is no good, of course, unless you know what a diode is, and how it emits light. First, a little history.
LEDs were invented in the early twentieth century by a Russian scientist named Oleg Vladimirovich Losev. His research, though, was ignored. Later, in the latter twentieth century, Nick Holonyak Jr. (now the father of the LED) developed the first practical LED in a visible spectrum. From that moment on, research continued to the present day, and here we are with the modern LED.
How does an LED work? A good question. The first question we must answer is: “What is a diode?” A diode is a simple device used as a sort of electronic control valve; the electric current going through them in one direction, but not the opposite. Simplified a little, when electrons through a light emitting diode, they lose energy. The excess energy is released in the form of photon beams, which for our purposes we can call light.
What is the difference between LEDs and your normal incandescent bulb? Incandescent light-bulbs use a filament. When an electrical current runs through the filament, the resistance builds up energy and heat which produce light. The different ways in which these two technologies create light make for some interesting characteristic differences between LEDs and incandescent light-bulbs.
LEDs, because they do not have to deal with a fragile filament, have a life-expectancy of roughly 10,000 hours to about 45,000 hours. Light-bulbs, on the other hand, have a life-expectancy of around 750 hours to 1000 hours–a significant difference. As well as lasting much longer, LEDs are also much more durable, because they lack a think filament.
LEDs are also much more power-sufficient than light-bubls. LEDs output approximately 18-22 luminous efficacy per watt, while light-bulbs produce around 15 luminous efficacy per watt.
As technology advance, LEDs will probably begin to replace light-bulbs, slowly crowding incandescents to extinction.
One of the major industries that use LEDs is the flashlight market. More Flashlight information.
Best Deal Ads :
One Response to 'The LED'
Leave a Reply
Latest from DealDotCom
- Too much controversy
- Cookie Stuffing Pro - with NEVER BEFORE OFFERED Resale Rights
- Leveraging Answer Sites To Create Unlimited Traffic, Products, And Profits
- A Proven System for Six Figure Ideas
- The 21ButRich Guide To Freedom
- The TRUTH about eBay PowerSellers
It's easier than you may think. Yes, you can make enough working at home with your own Internet business to quit your day job. Click Here to find out how!
-----------------
Free to the first 250 people. Act now!
One of the Net's top entrepreneurs is giving away an in-depth Internet "Business-In-A-Box." Press here before you become the 251st person
Subscribe 
Articles
- Advance Your Career with the Right Resume
- All about keyword density
- Business Audiobooks
- Confidence creates success
- e-Myth Mastery
- Finding a new line of work
- Finding the right job for you
- Five steps to being a successful business leader
- How to be a successful business leader
- How to succeed with an Internet business
- How to write an e-Book
- Job interview tips
- Making money from home
- Making money through article writing
- Motivation posters
- New careers for older workers
- SEO articles for profit
- SEO your articles
- Tips for article writing
New Video Provides Solutions for Auto and Aircraft Technicians
Many automotive and aircraft mechanics have tired of using poor quality tools that fall far short of their expectations, and are now trying out true professional grade tools that were designed for professional technicians.
OTTAWA, CANADA John Schira, spokesman for Maxxeon Inc., claims that many professionals as well as car guys and girls are no longer satisfied with “do-it-yourself” tools. “It isn’t just technicians that have big investments in their trade; serious hobbyists often have tens of thousands of dollars invested in their vehicles and they are beginning to demand tools that are of professional quality even though they cost more than the ordinary DIY products.” Mr. Schira continues, “This includes task lighting for the shop, which up until now has included many sub-standard, poorly performing tools. This is why we have introduced the WorkStar™1200, a professional lighting tool that resolves the shortcomings of other work lights.” These features are illustrated in a new video at this link http://www.maxxeon.com/ws1200video.html
The energy saving WorkStar™ is not a flashlight - it is a portable, cordless, rechargeable task light that uses a state-of-the-art high efficiency diode to produce light. These light emitting diodes, known as LEDs, are electronic light sources and are far more efficient than traditional light bulbs which use burning filaments to produce light.
The WorkStar™ features a unique two axis moveable light head that lets the technician direct the light exactly where he needs it. The user simply suspends the light by its retractable hook or its two coplanar high powered rare earth magnets and turns the LED light head to direct the light where he wants it. This solves another especially aggravating problem for mechanics - trying to repair a vehicle while the work light glares into their eyes. The WorkStar™ uses rechargeable batteries and because of the efficiency of the LED, it lights up the work area for over 5 hours on a single charge.
Maxxeon is a manufacturer of lighting solutions for the work place.