| 摘要 |
1. Extended field display apparatus in which the image is formed by the juxtapositioning of at least two partial images obtained by means of two respective projection devices, said apparatus comprising : - at least two opto-electronic assemblies (12, 13, 7, 8) controlled by at least one electronic symbol generator (14, 15), so as to generate two respective substantially complementary partial images of the image it is desired to obtain, and - at least two projection devices (5, 6, 9, 10) associated respectively with said assemblies, these two devices being adapted so as to jointingly project on to at least one screen (1, 2) the two partial images for recreating on this screen (1, 2) the complete image it is desired to obtain, said apparatus being characterized in that it further comprises : at least two detection devices (17 to 23) for detecting the relative position and/or the orientation of the two projection devices (5, 6, 9, 10) with respect to the screen (1, 2) ; and a processor (16) acting on the symbol generator (14, 15) for correcting the partial images in real time as a function of the information delivered by said detection devices (17 to 23). |
