An LED or a light emitting
diode is used a light source. It is a two lead semiconductor device. It is used
to emit light once the p-n junction diode is activated. For this to happen, the
leads of the diode must be applied a certain amount of voltage that is
sufficient so that the electrons in the device manage to combine once again
with the holes. During this process, photons which are a form of energy are
released. This process of release of energy is known as electroluminescence and
the color of the light that will be emitted depends upon the semiconductor’s
energy band gap.
What
are some of the uses of an LED?
An LED can be used for a
number of purposes. In the early days, it was used in electronic devices as an
indicator. It was used as a replacement for incandescent bulbs. After that,
many developments have taken place. They have also been used in the form of
numeric readouts as in seven segment displays or SSD. It is very commonly used
in digital clocks.
Nowadays, Advertising
LED Display is also becoming
very common. They are also used in environment as well as task lighting. Apart
from all this, LEDs are very commonly used the flashes of camera, aviation
lighting, automotive headlamps and lighted wallpapers as well. They have also
been used to develop various kinds of text and video sensors.
What
are the advantages of using an LED?
An LED has many advantages as
compared to other incandescent sources of light. The efficiency of an LED is
way more than other sources of light. The amount of light emitted does not
depend on the shape or size of the bulb. The size of LEDs is also very small.
An LED can also be used to emit various colors without using films of color.
LEDs light up very quickly. The lifetime of an LED is also very long. They are
not as fragile as various fluorescent bulbs. An LED can also be designed to
focus its light. These are the reasons why LEDs are being preferred a lot
nowadays.
There are various companies
that specialize in manufacturing, developing and selling of LED devices. They
sell various kinds of LED screens, LED displays, LED curtains, message signs
and much more. Novastar LED has also been developed to make the
experience of their customers better. Such companies try to provide their
customers a high quality of productsat cheap and affordable prices. The also
have a good customer service.