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+ - "Colloidal Display" Turns Soap Film Into a Projector Screen

Submitted by Anonymous Coward
An anonymous reader writes "3 graduate students from University of Tokyo, Carnegie Mellon University, University of Tsukuba have developed Colloidal Display — a clear projector screen that can control its transparency. Normally soap film will pass through the light but Colloidal Display does not. It mixes colloid into the solution and uses an ultra sonic speakers to vibrate the surface of the soap film to achieve this. They have created several prototype such as 3D planer screen to show how this technology can be useful."
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"Colloidal Display" Turns Soap Film Into a Projector Screen

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