Hackaday · Creativity & design

Mechanical TV Goes 3D with Light-Field Display

A novel approach has been developed to create a 3D display using a mechanical television setup.

Instead of a spinning disk, this system uses a rapidly rotating drum with holes. An array of LED matrix displays replaces the single lamp, with each display measuring 32x64 pixels.

The core innovation is splitting a 3D model into a light field, allowing each hole in the drum to project a specific view of the object at the correct angle.

The current demonstration uses three matrix displays, which limits the viewing angle due to their arrangement. More displays would be needed for a full 360-degree view.

The effective resolution per eye is approximately 100x48 pixels, which is sufficient for applications like playing the game DOOM.

This implementation is considered accessible as it keeps the displays stationary and avoids the need for expensive laser projectors. However, users must be cautious of the spinning drum.

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