😎 Science behind sun glasses 😎

How do you think that sun glasses work, you may say that it simply works by normal lenses 🧐.

But the answer behind the science of sun glasses is polarization.😎😎

Sunlight is the combination of horizontal and vertical ways.

Polrization of light is the act of dividing horizontal and vertical light ways,

Basically sungalsses  are made in such ways that it allows only vertical rays into the eyes and block horizontal ways.😎😎

This is the reason why we can have a clear view of water bodies which always reflects horizontal ways

Vertical rays can be filtered from sunlight , by arranging the molecular structure of lens in such ways which only allows vertical rays into the eye opening.  

Few sun glasses also holds photochromic character photochromic lenses are lenses which darkens on the exposure to light with high frequencies.