Optics: motion pictures – Stereoscopic cameras and/or projectors
Patent
1979-08-27
1981-12-01
Hayes, Monroe H.
Optics: motion pictures
Stereoscopic cameras and/or projectors
352 43, 352 86, 352 62, G03B 3500
Patent
active
043033164
ABSTRACT:
A process for recording and projecting a three-dimensional visual scene onto a receiving surface from which the scene may be viewed in stereopsis by the unaided human eye. The scene is recorded from right and left view positions laterally separated by a distance of no more than about one inch, and groups of recorded right and recorded left views are alternately projected onto a receiving surface in sequence such that the visual duration of each group varies from a minimum to a maximum time which is generally proportional to the distance of the nearest non-moving object of special regard in the scene from the recording positions and is approximately equal to the visio-psychological suppression rate of the human eyes.
To eliminate possible distance variations of right and left view cameras from the visual scene and the need for film editing to align right and left view film frames on a single film strip, the views may be recorded by use of a single lens camera with moving shutter to alternately block right and left half portions of the lens in desired sequence. The central points of focus of the left and right views may be selectively set at different distances during recording to reduce "keystoning" effect of the projected views.
The process has application throughout the field of the visual arts, e.g., both in motion picture and in television, and may be projected from a single projector source. Also disclosed is a motion picture filmstrip product.
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Hayes Monroe H.
Manning, Jr,. Wellington M.
Wilburn, Jr. Luke J.
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