Circular polarization and Read3D glasses

barryj · Apr 11, 2015

I am trying to understand circular polarization and Real 3D glasses.I am sure that answers will lead to other questions.

Question 1. Are Real 3D glasses merely quarter wave plates with each eye set at 90 deg angles to the other? or..

Question 2. Do Real 3D glasses consist of a linear polarizer followed by a quarter wave plate?

Question 3. What happens when I put two quarter wave plates together, and then rotate them?

A.T. · Apr 11, 2015

Diagram of a circular-polarization 3D projection setup: a projector emits linear vertical waves for the L and R channels, one channel slowed by a quarter wavelength to become circular, then reaching the eyes through glasses that convert them back to linear vertical and horizontal, with the screen swapping handedness.

Diagram titled RIGHT PICTURE showing polarization paths from projector to screen to L and R eyes, with linear vertical, circular left and circular right waves, slow red by λ/4 and slow blue by λ/4 labels, and glasses bracket.

barryj · Apr 11, 2015

Excellent diagram and video. Thanks

Circular polarization and Read3D glasses

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