jake on 2003.08.08
at 07:45 pm
Two fog stories, completely unrelated, that are pretty cool.
The first one is about a camera technology that removes fog from film. Dubbed Dmist, the technology "can be plugged straight into a normal video camera."
The device works by taking out the light scattered by water particles so the picture can be recovered in colour, as if it were being shot on a clear day.
Professor Nigel Allinson, from UMIST, said it had potential for airports - where fog can shut down operations, costing thousands of pounds in delays.
The second reminds me of one of the shows in DisneyLand/World where they project images onto a mist of water. In this case a thin film of "dry" fog is projected onto.
The basic components of the screen are a laminar, non-turbulent airflow, and a thin fog screen (or any particles) injected into and inside a laminar flow. Created this way, the fog screen is an internal part of the laminar airflow, and remains thin, crisp, and protected from turbulence. When the screen is formed, images can be either rear- or front-projected onto it. The screen can be translucent (as in the images below) or fully opaque. Our current fog screen prototype already proves the operating principle with excellent results. The quality, size, and other features of the screen will be enhanced in the coming weeks.
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