polarizing filters

Light wave selectors

Polarizing filters block light waves vibrating in certain directions while allowing others through.

In photography, they reduce glare and reflections, deepen blue skies, and cut through haze: A polarizing filter made the clouds pop against the sky.

Two polarizing filters rotated against each other can block nearly all light.

Polarized sunglasses work on the same principle, reducing glare from water and roads.

Related

LCD · stress analysis · crystals · microscopy · prisms · refraction · quartz · photodetectors · color saturation · contrast enhancement · darkening · rainbow effect · contrast · glare · windshield · landscape photography · spectroscopy · coating

Opposites
filter type/function

polarizing filtersno filter

Without screening or softening

clear glass · window glass · UV filters

Family

filter, polarization, polarize, filtration

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Concrete · Rated G