Abstract: A multi-prism mechanism includes: an exposure motherboard; and a laser controlling and launching unit; wherein a multi-prism unit, a lens, an angle-switching reflecting mirror, a light detecting reflecting mirror, a light detecting device, three acousto-optical driving controllers, a laser driving control panel, a plurality of support posts and a plurality of reflecting mirrors are provided on the exposure motherboard; the laser controlling and launching unit is mounted on the support posts through nuts, in such a manner that the laser controlling and launching unit is installed on the exposure motherboard in a folded form; wherein the lens comprises a light inputting face and a light outputting face, the laser controlling and launching unit comprises three laser generator sets in parallel, the laser generator set comprises an acousto-optical regulator, a light valve, a directing lens, an optical zooming lens, a laser reflecting mirror and a spotting reflecting mirror.

Abstract: A movable pressing and light-shielding mechanism for digital stereo image printing comprises a base (1), multiple gantries (2), a photosensitive platform (3) and an exposure system device (4); wherein the base (1) has a groove inside which the photosensitive platform (3) is provided. The number of the gantries (2) is two. The two gantries (2) are provided in parallel and fixed on the base (1) and a slideway (22) is provided between the two gantries (2). A screw is provided in the slideway (22). One end of the screw is connected with a second motor (12). The motor (12) is connected with the exposure system device (4). A top end face of the exposure system device (4) is connected with the screw. A laser scan line opening is provided on a bottom surface of the exposure system equipment (4).