Image projecting equipment capable of hanging and flying

Abstract

The invention relates to an image projection device that is able to float and to fly and that comprises at least one float, projector (2) and projection surface (3). The shape and volume of the float (1) are chosen such that the lift generated by it allows for a stable position of the projector and the projection surface that are spaced apart depending on the projection distance, the projector (2) is disposed substantially outside a first peripheral surface of the float, the projection surface substantially coincides with a second peripheral surface opposite the first peripheral surface and is substantially plane when used, and that the float, between projector and projection surface has a lift-free zone which does not substantially impair the beam path in the space between the projector and the projection surface. In another embodiment, the volume of the float is chosen such that the lift generated by it allows for a stable position of the projector and the projection surface that are spaced apart depending on the projection distance, the projector is disposed substantially outside a first peripheral surface of the float, the projection surface is substantially plane when used, the projection surface is disposed in the area of a second peripheral surface that is substantially opposite the first peripheral surface of the float, and that the projection surface is fastened in the float as a separate element.

Description

technical field [0001] The invention relates to a projection device of the generic type defined in claim 1 , capable of hovering and flying, having at least one floating body, a projector and a projection surface. Background technique [0002] A device of this type is known from German Registered Design DE 201 11 846.7, where the projector is arranged in a fluid-filled balloon. The image projected by the projector is made visible by projecting the image onto the inner surface of the balloon casing, with the balloon as the projection surface. The image is then visible to viewers outside the balloon, which may be on the ground, hovering in the air, or rising skyward. [0003] An understandable disadvantage of this image projection device is that, simply because of the way it is constructed, the heat generated by the projector inside the balloon will destabilize the buoyancy properties of the balloon due to the high temperature. Additionally, and primarily, disadvantages aris...

AI Technical Summary

Problems solved by technology

[0003] An understandable disadvantage of this image projection device is that, simply because of the way it is constructed, the heat generated by the projector inside the balloon will destabilize the buoyancy properties of the balloon due to the high temperature

Also, and mainly, the flaws introduced by using the curved surface of the balloon shell as the projection surface

Using this type of surface as a projection surface means that in order to remove image distortions, one must have rather complex, expensive equipment

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