Display system using projection screens formed of flowing snow
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United States of America Patent
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Oct 9, 2012
Grant Date -
Nov 24, 2011
app pub date -
May 19, 2010
filing date -
May 19, 2010
priority date (Note) -
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Abstract
A display system for use in winter and other low temperature venues. The system includes a projection screen generation assembly that includes a snow making machine. The snow making machine receives an input flow of a liquid, such as water plus one or more additives to increase opacity and/or reflectivity of the snowflakes. The machine forms snow from the input flow and discharges a volume of flowing snow as a sheet or curtain providing a projection screen. The system includes a high-brightness projector directing light onto the projection screen to provide an image on surfaces of the flowing snow. In some embodiments, the snow making machine includes a nozzle configured such that the flowing snow is output in a substantially planar sheet, e.g., with the use of a diffuser or the like for increasing the laminar nature of the flow and the sheet may be relatively thin.
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