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  1. C. W. Kanolt, U. S. Patent, 1,260,682; 1918.
  2. Ives, "A Camera for Making Parallax Panoramagrams." J.O.S.A. & R.S.I.; Dec. 1928.
  3. 3 The practical juxtaposition of their points of view might be assisted by placing a second and third series of cameras pointing upward and downward, receiving their light from semitransparent mirrors at 45° placed in front of the lenses of the first series.
  4. 4 Small, slow deviations from proper registration would have the effect of apparently slowly shifting the observer's position—such a shift introduced by moving the camera has been used purposely to give the illusion of relief in motion pictures.
  5. 5 Both of these defects of the parallax panoramagrams can be materially lessened if, instead of gratings consisting of opaque lines, a structure of parallel cylindrical lenses is used. This form of grating would be entirely feasible in the relatively large screen involved in motion picture projection.

Ives,

Ives, "A Camera for Making Parallax Panoramagrams." J.O.S.A. & R.S.I.; Dec. 1928.

Kanolt, C. W.

C. W. Kanolt, U. S. Patent, 1,260,682; 1918.

Other

C. W. Kanolt, U. S. Patent, 1,260,682; 1918.

Ives, "A Camera for Making Parallax Panoramagrams." J.O.S.A. & R.S.I.; Dec. 1928.

3 The practical juxtaposition of their points of view might be assisted by placing a second and third series of cameras pointing upward and downward, receiving their light from semitransparent mirrors at 45° placed in front of the lenses of the first series.

4 Small, slow deviations from proper registration would have the effect of apparently slowly shifting the observer's position—such a shift introduced by moving the camera has been used purposely to give the illusion of relief in motion pictures.

5 Both of these defects of the parallax panoramagrams can be materially lessened if, instead of gratings consisting of opaque lines, a structure of parallel cylindrical lenses is used. This form of grating would be entirely feasible in the relatively large screen involved in motion picture projection.

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