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polarizer

polarizer

2 7.2
A filter that lets light waves in one direction pass
  • noun
  • /ˈpoʊləˌraɪzər/
  • Specialized
translation icon : polarizador
  • A polarizer and a neutral split density filter will also be useful.
  • a circular polarizer
  • polarizer filter
  • a second polarizer

But what happens if you just remove this top polarizer?

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Examples

  • Then place the third polarizer oriented at 45 degrees between the other two.

    Blog text (4)
  • Now light gets through all three, even though the outer two polarizers are still at 0 and 90.

    Blog text (4)
  • Make sure to take a polarizer, a UV, or any other filter off.

    Academic text (2010)
  • There is a less expensive solution, at least for the digital photographer: crossed polarizers.

    Academic text (2007)
  • The most important filter to use is a circular polarizer, which reduces reflections and glare found in abundance when shooting water.

    Academic text (2008)
  • The light beams combine again and pass through the polarizer and the first directional coupler to the photodetector.

    Academic text (1994)
  • September skies are unusually blue with soaring cumulus clouds, so bring your polarizer.

    Academic text (1996)
  • One beam is transmitted through a polarizer, which refines the signal, and then enters a second directional coupler.

    Academic text (1994)
  • The sensing system has a fiber-optic coil, directional couplers, a polarizer, a laser-diode light source, and a photodetector.

    Academic text (1994)
  • A polarizer is essential for reducing glare when photographing reflections on water.

Synonyms

filter
vspolarizer
  • Specialized
34 5.0

A device that allows some frequencies in electrical signals to pass and blocks others

selects light waves by their vibration direction rather than by frequency
light filter
vspolarizer
1 4.3

A piece of clear material, like a camera lens, that reduces light passing through it

selects light waves by their vibration direction rather than reducing brightness or wavelengths

How Selective

polarizer
  • Specialized
2 7.2
filter
139 2.8

Surface Forms

polarizer singular
polarizers plural
polarises plural
polariser singular

Morphology

polarizer = polar (semi-transparent) = polar + izer

The suffix '-izer' indicates a device or agent, but the specific function related to light polarization is specialized knowledge.

Etymology

Polarizer comes from the word polar, which is related to pole and means 'one of two opposite points' like the north and south poles. In light, to polarize means to make waves 'line up' in one direction, so a polarizer is a device that lets only those aligned waves pass through.