subject: Small Yet Productive Energy Efficient Led Light Bulbs [print this page] From the very start of the technology LEDs have advances a long way. They already have managed to infiltrate our everyday lives and have formed what our environments look like.
Light Emitting Diodes (LEDs) are merely small energy efficient light bulbs. They use semiconductor engineering to emit light. When LEDs were first opened up in the 1960's, initially they were utilized to emit a very low level of light, typically as indicators for an on/off type system. As technologies have advanced, LEDs have been taken through an intensive redesign and redevelopment program and can create a variety of different wavelengths that determine the colour of the light released, right from infrared to ultraviolet. The new designs of LEDs have permitted them to be used in lieu of conventional incandescent bulbs. As prices keep going down, the popularity of LEDs utilized in domestic situations will have to grow. Not only used for lighting purposes, LEDs usually are used for displays in monitors and television displays, giving a sensitive and clean display.
LEDs work by only allowing electricity through one way. They are mainly comprised of two plates, a positively energized plate and a negatively loaded plate. When electric current is passed through the LED, the positive charge is drawn to the positively charged plate and the same for the negative charge. When the electricity reach a high enough level, the electrons within the plates are ousted by electricity passing through. As the electrons from the two plates combine they produce light electrical energy in the form of photons. Photons are made when electrons have too much energy. This electric power is released as light, this is known as electroluminescence.
LEDs have advanced since the crude beginnings of the technology, so much so that different colors can be made when necessary. The intensity level of the light has also elevated which has paved way for local use. The design of the LED bulbs maximizes the released light, reducing the loss of the light energy power.
LED bulbs are employed in a lot of everyday devices, some of which you may not notice. As an illustration, in most modern traffic lights. The Red, Amber and Green screens are made up of a collection of tightly packed together LEDs. This has many advantages; the intensity of the light has increased without compromising to watch the colour display. If one bulb breaks, the entire traffic light will never fail, also the displays can be seen in almost all weather conditions, due to the severity of the LEDs. In Mobile devices and other hand held devices, TV screens and most other appliances. Without this tiny piece of technology, our lives will drastically not the same as what we are familiar to today.
