Viewer for animated publicity image projection - polarised negatives and polarising disc in path of projection beam

摘要

Viewer applicable to the projection of animated publicity images comprising a projector (2) at least partially fed with polarised negatives, as well as a moving polarising disc (51), arranged in the path of the projector beam (22), and mounted in front of a screen (11), the whole including automatic control and operation. The surfaces of the negatives having a covering of a polarising film, this film is also applied to the polarising disc (51) which is driven by a motor (52). The projector (2), negative receptacle (21), the control circuit and polarising device n5) are located in a housing (1) with one face forming an image receiving screen (11). The control device permits the automatic passage of images at chosen intervals of time.