Water canvas for image projection and writing, has improved inflow square pipe made of aluminum, in which water nozzles or holes are attached on lower surface, where water falls in collecting tank from lower surface

摘要

The water canvas has inflow square pipe made of aluminum, in which water nozzles or holes are attached on the lower surface. The water falls in a collecting tank from the lower surface. A water curtain consists of thousands drops, which are used particularly as water canvas for image projection. The aluminum profile e.g. pipe, is used for production of a water curtain or a water canvas, which consists of a wedge-shaped tapering which causes a better inflow of the ambient air at the water outlet of the nozzles. The wedge-shaped aluminum profiles have a rounded and flow optimized tapering.