Photogrammetric rectifier

摘要

The invention relates to a photogrammetric rectifier with a picture carrier, a projector stand and a projection lens, the projection lens being movable along the optical axis and having a variable focus. Due to the zoom optics used as projection lens, a large change in magnification can be achieved with a slight change in focal length without moving the picture carrier. The setting ranges of the optical members of the projection lens, required for varying the focal length, can be selected by a microprocessor. The invention can be used for projection printing aerial photos, aerial-cosmic and terrestrial pictures. <IMAGE>