Before entering direct to the topic. We should first of all should know about polarization. Polarization is the phenomenon in which the vibration of light takes place in one particular direction. We all know that light is both particles and waves. It shows both the nature. When in the waves in the transverse wave the up and down or horizontal vibration takes place. Whereas particles are also sometime called as the packets of photons. This photons vibrate when reflecting from a surface. Just like when a different holes are made in the balls and then pass the light then in that situation the light is spread from all that balls hole. In the same way the light coming from the sun spread in all direction and this direction is known as ether. From this medium the source of light is vibrating in all direction and this is called unpolarized light but when a light reflected to a certain surface like water, snow, roads they appear to be more shining and becomes bright because now the light vibration is all on a particular direction. It is not spreading as previous. This is called as the polarized light. The objects are difficult to see and observe.
To prevent from such level of brightness and to avoid polarization of light directly on our eyes the polarized sunglasses are made. It was back in the year 1934 when Edwin land first invented a polaroid sunglass. This lenses are made by a billions of crystal crystallization of herpathite onto a smooth stretchy polymer. He used the concept of bringing all those polymer onto a bar window on a smaller level of molecule. When the polarized light strike onto this bar they are blocked by the bar. It is also not so darker as compared to non polaroid sunglasses as well as it provides the original color of visuality when seeing around. It is very useful for working in a very bright area and for having fun on holidays on a sea beach, adventure on high mountains or fishing.
So this are the workings and the science behind how the polarized glass actually functions.
0 comments:
Post a Comment