Viewing devices attached to the armrests of the theater seats had rotary shutters that operated synchronously with the projector shutters, producing a clean and clear stereoscopic result. Ives and Leventhal then went on to produce the following stereoscopic shorts in the "Stereoscopiks Series" released by Pathé Films in 1925: Zowie (April 10), Luna-cy!
In it, a regular motion picture camera system is used to record the images as seen from two perspectives (or computer-generated imagery generates the two perspectives in post-production), and special projection hardware and/or eyewear are used to limit the visibility of each image in the pair to the viewer's left or right eye only.3D films are not limited to theatrical releases; television broadcasts and direct-to-video films have also incorporated similar methods, especially since the advent of 3D television and Blu-ray 3D.Teleview was the first alternating-frame 3D system seen by the public. In 1922, Frederic Eugene Ives and Jacob Leventhal began releasing their first stereoscopic shorts made over a three-year period.Using left-eye and right-eye prints and two interlocked projectors, left and right frames were alternately projected, each pair being shown three times to suppress flicker. The show ran for several weeks, apparently doing good business as a novelty (M. The first film, entitled Plastigrams, was distributed nationally by Educational Pictures in the red-and-blue anaglyph format.He took a leave of absence from Harvard to set up a lab and by 1929 had invented and patented a polarizing sheet.
While his original intention was to create a filter for reducing glare from car headlights, Land did not underestimate the utility of his newly dubbed Polaroid filters in stereoscopic presentations.In January 1936, Land gave the first demonstration of Polaroid filters in conjunction with 3D photography at the Waldorf-Astoria Hotel.It is unknown what film was run for audiences at this exhibition.In his patent, two films were projected side by side on screen.The viewer looked through a stereoscope to converge the two images.Because of the obtrusive mechanics behind this method, theatrical use was not practical.