Polarized 3D glasses – All About Polarized 3D glasses

In this article, we will discuss different types of polarized 3D glasses. Two major types of polarized 3D glasses are

  • Passive 3D glass
  • Active 3D glass

Passive polarized 3D glass

Passive 3D glass does not need the power to operate. It uses polarized glasses as lenses, based on the type of polarization we can classify as

  • Linearly polarized glass – The viewing quality depends on the tilt of the viewer,so it is not used widely.
  • Cirucularly polarized glass – The viewing quality does not depend on the tilt of the viewer, it is normally used in TVs and cinemas.


  • Good 3D effect as compared to anglyph 3D
  • Cheaper than active 3D glass
  • Comfortable


  • Requires a silver screen when using projector

Active 3D glass

Active 3D glasses need the battery to operate. These glasses are based on LCD shutters, these shutters are placed over each lens. The LCD glasses are darkened to block the lens sequentially and it is in sync with the 3D . It also communicates with the 3D system using any one of the methods below

  • Infrared emitter – PC & TV
  • Radio frequency emitter – PC & TV
  • DLP-link – Projectors


  • Very good 3D effect
  • Good color reproduction


  • Expensive
  • Not very comfortable
  • Flickering

To read about polarized 3D system read our article.

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