3D - 2

How do the new 3D glasses work?

When I went to a 3D movie about 5 years ago, I remember having those classic 3D glasses with one blue lens and one red lens. Today I went to see the movie 'Coraline' another 3D movie, but the glasses I recieved aren't like the old ones. The lenses on the new glasses seem to be completely clear. How do these new ones work?

Public Comments

1. LOL?
2. The only movie I've seen in 3-D is My Bloody Valentine in 3-D.. Really it just makes stuff pop out at you every so often.
3. idk but i used the same ones at the Jonas Brothers 3D concert today
4. All 3D techniques work by assuring that each eye receives a slightly different image. The red-and-blue (or red-and-green) method worked because if the picture for one eye is red and is the picture for the other eye is blue or green, then the ear looking through the red lens sees only the blue or green picture and the eye looking through blue or green lens sees only the red picture. Of course, this limits the picture to being in something like black-and-white. But because the one eye is seeing everything in shades of red and the other eye in shades of blue or green, it is somewhat messier. I produce head-aches in some people. “Coraline” uses the Dolby 3D process in which the each lens is subtlely tinted to not allow some tints of the primary color through, Then the film is projected so that the view for each lens contains the propery set of tints. The pictures appear on screen at about 44 frames per second and pictures for each eye appear alternately. See http://www.edcf.net/edcf_docs/dolby-3d.pdf . Apparently in combining the two images, the mind handles the increasing flickering so that normally isn't noticeable, except where there is very fast action on the screen, in which case some jerkiness and jumping is perceived.