Is it possible to polarize a complex 3d shape?

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SUMMARY

This discussion centers on the feasibility of polarizing a half-spherical shape to create LED eyes that only display content when viewed directly. The concept involves placing a flat LED screen behind a hemisphere, with the goal of controlling visibility based on the viewer's angle. Alternative suggestions include using small tubes to achieve a similar effect by limiting light visibility to direct lines of sight. The conversation highlights the challenges of light polarization and the need for clarity in design intent.

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  • Understanding of light polarization principles
  • Familiarity with LED technology and display configurations
  • Knowledge of geometric optics, particularly regarding hemispherical shapes
  • Experience with design concepts for visual displays
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  • Research light polarization techniques and materials
  • Explore LED display configurations for optimal visibility
  • Investigate geometric optics related to hemispherical lenses
  • Examine alternative designs for limiting light visibility, such as tube structures
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Design engineers, product developers, and hobbyists interested in innovative display technologies and visual effects.

kolleamm
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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.
1596308491503.png


Or am I misunderstanding the intent?
 
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