US Patent 11366375 Projection apparatus

A projection apparatus including a housing and a first projection module is provided. The housing includes a curved projection area and an opening, wherein the curved projection area includes an inner surface and an outer surface opposite to each other. The first projection module is detachably disposed in the housing through the opening and corresponds to the curved projection area, wherein the first projection module projects an image onto the inner surface of the curved projection area, such that the outer surface of the curved projection area displays the projected image. The projection apparatus provided by the invention has the curved projection area to dynamically display a stereo image.