Persistance-of-vision LED Sphere

The goal of this project was to develop 3D spinning mechanism capable of displaying smooth video or static images. The device uses a spinning ring with tri-color LEDs inside, and relies on precise angular sensing and persistance-of-vision and to create the effect of a spherical display surface. Although the system consists of only a single ring of LEDs, the high rotational speed makes it possible to display any combination of red, green, or blue pixels along the surface of the resulting sphere. (3-bit color depth!). [via]

Persistance-of-vision LED Sphere – [Link]

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