Third Dimension Movies And E X P A N D E D Screen (1953)

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THREE-DIMENSIONAL MOTION PICTURES 153 To be sure, there are applications of the three-dimensional motion picture other than for entertainment purposes. These are principally in the fields of education, industry and science. Here, portability of equipment and low production cost are prerequisites to the use of such films. For this reason, 16111111 film seems to be the choice medium for motion pictures of this type. The original decision to concentrate effort on improvements to the alternate frame technique was based on the possible ad vantages which could be had by maintaining full frame stand ards and at the same time confine at least the projection to a single standard film. Fig. 6 shows a sample strip of alternate frame stereo movie film. On projection the right eye will see every alternate frame, the left eye will see those in between.