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من طرف **Neo** السبت فبراير 27, 2010 5:32 pm

Introduction of Polaroid

While attending Harvard University, Edwin H. Land conceived the idea of reducing glare by polarizing light. He took a leave of absence from Harvard to set up a lab and by 1929 had invented and patented a polarizing sheet.[24] In 1932, he introduced Polaroid J Sheet as a commercial product.[25] 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 3-D photography at the Waldorf-Astoria Hotel.[citation needed] The reaction was enthusiastic, and he followed it up with an installation at the New York Museum of Science.[citation needed] It is unknown what film was run for audiences with this installation.

Using Polaroid filters meant an entirely new form of projection, however. Two prints, each carrying either the right or left eye, had to be synced up in projection using an external selsyn motor. Furthermore, polarized light would not register on a matte white screen, and only a silver screen or screen made of other reflective material would correctly reflect the separate images.

Later that year, the feature, Nozze Vagabonde appeared in Italy, followed in Germany by Zum Greifen Nah (You Can Nearly Touch It), and again in 1939 with Germany's Sechs Mädel Rollen Ins Wochenend (Six Girls Drive Into the Weekend). The Italian film was made with the Gualtierotti camera; the two German productions with the Zeiss camera and the Vierling shooting system. All of these films were the first exhibited using Polaroid filters. The Zeiss Company in Germany manufactured glasses on a commercial basis commencing in 1936; they were also independently made around the same time in Germany by E. Käsemann and by J. Mahler.[26]

In 1939, John Norling shot In Tune With Tomorrow, the first commercial 3-D film using Polaroid in the US[citation needed]. This short premiered at the 1939 New York World's Fair and was created specifically for the Chrysler Motor Pavilion. In it, a full 1939 Chrysler Plymouth is magically put together, set to music. Originally in black and white, the film was so popular that it was re-shot in color for the following year at the fair, under the title New Dimensions[citation needed]. In 1953, it was reissued by RKO as Motor Rhythm.

Another early short that utilized the Polaroid 3-D process was 1940's Magic Movies: Thrills For You produced by the Pennsylvania Railroad Co. for the Golden Gate International Exposition[citation needed]. Produced by John Norling, it was actually shot for him by Jacob Leventhal using his own rig. It consisted of shots of various views that could be seen on Pennsylvania Railroad's trains.

The 1940s was further hindered by World War II, and stereoscopic photography once again went on the back-burner in most producers' minds.