| 摘要 |
The general field of the invention is that of display systems comprising at least two devices (P) for projecting images and a single screen (E), each projection device comprising an image source and projection optics arranged so as to project the image (I P) delivered by the image source onto a display region (Z A) of the screen so that the various images projected from various image sources form a single image without obvious discontinuities, said display system comprising a device for monitoring and servo-controlling the alignment of the various images. The monitoring and servo-control device is such that the image delivered by each image source comprises at least one detection pattern so that the projected image of said detection pattern meets the screen in a detection region located outside of the image display region, the screen comprising a plurality of light sensing elements (C1, C2), each light sensing element being associated with a projection device and placed so that the projected image of a detection pattern delivered by said projection device forms on its light-sensitive surface, the sensing element being arranged so as to determine the position and/or the orientation of said detection pattern and its photometric properties.
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