| 摘要 |
An image projection device that is capable of floating and flying includes a buoyant body having a first outer surface, a second outer surface opposite from the first outer surface, and a buoyancy-free section between the first and second outer surfaces. A projector is arranged at the first outer surface, and a planar projection screen is arranged essentially at the second outer surface, the projector being separated from the projection screen by a projection range which is within the buoyancy-free section. According to another embodiment, there is no buoyancy free section, and the projection screen is fastened to the buoyant body as a separate component in the vicinity of the second outer surface. The buoyant body is configured so that its buoyancy provides stable locations of the projector and the projection surface.
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