Large Image Projection
Encyclopedia
Mostly large-image projection (or large-format projection) is used for the use of large-format slide projectors or extremely powerful video projector
Video projector
A video projector is an image projector that receives a video signal and projects the corresponding image on a projection screen using a lens system. All video projectors use a very bright light to project the image, and most modern ones can correct any curves, blurriness, and other...

s for producing still standing or dynamic images on projection areas of about 100–10 000m2 and more. Sometimes the use of slide projector and video projector is combined to reach a kind of "picture in picture" projection to enable larger projections with a dynamic part inside. But that is a speciality of projection artists which have a lot of detailed know how of the projection parameters.
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