Abstract: The optical device comprises a lighting unit with two light sources (1) with reflectors (2), whose optical axes (11) are inclined towards one another, with prism pairs (3, 4) for forming two parallel image channels (10, 11) arranged in the optical path and a supplementary lens arranged after a basic optical (12) of a commercial projector for the lateral expansion of the linearly compressed individual images and lenses (A, B, C) for the distortion-free superwide angle imaging of the image pairs on a spherically curved surface. By means of this optical device, a normal commercially available cine projector can be upgraded to a projection apparatus for stereoscopic, linear anamorphotically compressed image pairs on an extremely large, spherically curved wide-screen surface.

Abstract: An optical arrangement for producing two anamorphotic images correlated by a interocular base distance, includes two basic optical systems and two afocal anamorphotic systems. The basic optical systems are parallel and spaced laterally by an interocular base distance. Each anamorphotic system has a cylindrical negative lens system mounted adjacent the object space side of the respective basic optical system and a cylindrical positive lens system mounted adjacent the image space side of the respective basic optical system.