polarizer

plural polarizers · alternative UK polariser

1. One who polarizes; one who divides a group or community into two extremes.

   a polarizer of opinions

2. natural sciencesAny device that produces polarized light.

   1 more example

   When the polarizers are aligned in the same direction, they block the same state of polarization, i.e. they both block horizontally polarized light, and both let the vertically polarized light through. The second polarizer therefore has no effect on the light. When the polarizers are aligned perpendicular to one another, one will block the horizontally polarized light and the other will block vertically polarized light — no light at all gets through the pair!

   2013 July 16, skullsinthestars, “Simple fun with polarizers!”, in Skulls in the Stars, archived from the original on 05 Apr 2022