Operating without a screen or external devices of any kind, the Heliodisplay laser color video projector creates 22- to 42-in.-diagonal flat images into seemingly thin air by modifying the ambient air ...
Projection applications have always been hindered by the need for an external screen to carry the image�be it rollup screen, blank wall, or sprayed/draped/poured background. the Heliodisplay laser ...
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