• Question: how do 3D glasses work?

    Asked by v1997 to Asif, Laura, Lena, Sean, Viv on 12 Mar 2012.
    • Photo: Sean Murphy

      Sean Murphy answered on 9 Mar 2012:

      3D glasses use colour filters to trick you brain into thinking it is seeing a 3D image. With newer 3D glasses the left eye receives the all the colour information (amber filter) and the right eye eye sees only the blue parts (blue filter) of the image. The human brain ties both images together and sees it as a 3D image. Try and closing each eye next time you watch a movie in 3D.

    • Photo: Laura Waters

      Laura Waters answered on 12 Mar 2012:

      I agree with Sean. Your brain does the hard work. It is more than one image being shown at the same time and fools your brain. Very cool effect, have you tried the new TVs? I saw one in a shop & was very impressed.

    • Photo: Lena Ciric

      Lena Ciric answered on 12 Mar 2012:

      I went to a seminar last week that used the old two colour 3D glasses to show us some images of bacteria. It was really good but made my eyes go a bit weird for a while afterwards.

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