A light wave that is vibrating in more than one plane is referred to as unpolarized light. …

Polarized light waves are light waves in which the vibrations occur in a single plane. The process of transforming unpolarized light into polarized light is known as polarization.

en.wikipedia.org/wiki/Polarizing_filter_(photography)

The most common use of polarized technology is to reduce lighting complexity on the subject.
Details such as glare and hard edges are not removed, but greatly reduced.