Photos: Techfest 2009 - A glimpse into the future

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Secondlight - Techfest 2009

Secondlight - Techfest 2009

The SecondLight project out of the Cambridge labs in England caused a stir by demonstrating that an image of a cow can be projected onto a light table at the same time as supporting text. The light table surface switches imperceptibly between clear and diffuse states, which allows a second image to be projected above the surface when it is clear. The text is reflected in a second diffuser – here a piece of paper – that is above the light table surface.

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