Apparatus for displaying still and moving images on a three-dimensional projection screen

An apparatus for displaying still and moving images on a three-dimensional projection screen, comprising:

• a gas-inflatable envelope which is made of a flexible material and has an inner surface used as a three-dimensional projection screen;
• a gas inlet opening;
• a blower, which is connected to the gas inlet opening and produces a gas flow which inflates the envelope;
• an interior enclosed by the envelope;
• a projector emitting a projection beam;
• and
• a reflection mirror which is arranged at the zenith of the envelope and has a curved mirror surface for deflecting the projection beam emitted by the projector onto the inner surface of the envelope, the still image or moving image produced by the projection beam being visible on the outer surface of the envelope and observable from the outside;
• wherein the projector is arranged inside the interior of the envelope and is aligned in such a way that the projection beam emitted by the projector is reflected by means of the reflection mirror arranged at the zenith onto the inner surface used as the three-dimensional projection screen;
• and
• wherein a light registering apparatus, with which visible light impinging on the outer surface of the envelope with a defined property is recorded as a light event, and this light event is digitally processed so that a temporally limited change of an image or video projected on the inner surface of the envelope takes place, is arranged inside the interior of the envelope.