Then they developed the pictures and loaded them onto three different projectors, one with a red filter over the lens, one with green, and one with blue.

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In addition, 6 of the 12 RadNet monitors we sampled had gone over 8 weeks without a filter change, and 2 of those for over 300 days.

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Then put this in your cool gizmos file: A cheap filter that fits over a conventional monitor or television set and displays very good 3D images.

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