Method of producing and displaying a 3-D motion picture

Details Method of producing and displaying a 3-D motion picture Method of producing and displaying a 3-D motion picture

1988-06-22

1990-09-18

Hayes, Monroe H.

Optics: motion pictures

Stereoscopic cameras and/or projectors

Plural film strip

352 69, 352239, G03B 3500

Patent

active

049573616

ABSTRACT:
A method of producing and displaying a 3-D motion picture is disclosed. Two master film negatives are prepared using a camera rig employing one camera that looks directly at the subject through a semi-transparent mirror and a second camera that looks at the same subject by way of the reflective surface of the mirror, to obtain left and right eye images. The cameras are oriented so that the mirror images recorded by the second camera are turned laterally of the film in being reflected by the mirror. Contact prints are made from the negatives. Before projecting the images, the contact print from the negative that was shot by way of the mirror is turned about its longitudinal axis so that images on that print are turned laterally. Images from the two prints are simultaneously projected onto the same screen to produce a coincident 3-D image. The left and right eye images are optically coded, for example by using optical filters that are polarized at right angles to one another. The viewer wears spectacles having corresponding polarized lenses so that the left eye sees only projected left eye images while the right eye sees only projected right eye images.

REFERENCES:
patent: 1860737 (1932-05-01), Handschiegl
patent: 2630737 (1953-03-01), Ramsdell
patent: 4650305 (1987-03-01), Hines
"Large Screen 3-D . . . ", Perforations, vol. 3, No. 4, Jul. 1983.
Letter from Polaroid Corporation, dated 8-9-56 signed by Donald L. Brown.
"3-D Imax Camera Assembly", Perforations, vol. 4, No. 4, 1984.
"3-D Imax Progress Report", Perforations, vol. 4, No. 4, 1984.
"Future Cinema", Perforations, vol. 4, No. 3, 1984.

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