
Normal light will produce waves which
vibrate in many different directions

Polarized light is light which vibrates in only 1
direction

Polarized lenses block all light waves except
those moving in 1 direction

Polarized lenses can reduce glare from a
long, flat surfaces such as the hood of the car
or the road's surface. Light reflected from
surfaces such as a flat road or smooth water
generally is horizontally polarized