Is it possible to polarize a complex 3d shape?

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The discussion revolves around the concept of creating LED eyes using a half-spherical shape that would only display images when viewed directly. The main challenge is how to effectively polarize the half sphere to achieve this effect. Participants question the size and orientation of the hemisphere, as well as the purpose of light polarization. An alternative suggestion is to use small tubes to achieve a similar visibility effect without polarization. The conversation highlights the technical complexities and potential solutions for this innovative idea.
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I have this idea for LED eyes. Basically its an LED screen behind a half spherical shape. I want the user only to see what's on the display if they are looking directly at it. So for that I would need to polarize the half sphere. The half sphere can be made out of anything, the problem is how do I polarize it?
 
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I cannot get my head around what you are describing.

You have a flat LED screen. Small? 4x3 inches?
You place a hemisphere between the screen and the viewer. Pointing which way? How big?What does it accomplish?
You want to polarize the light? Why?

Would the same thing not be accomplished if the LEDs were instead at the bottom of small tubes? Then you could only see lights for which you are looking directly down the tubes.
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Or am I misunderstanding the intent?
 
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