Stereoscopic method and apparatus.

摘要

A moving picture of a scene is recorded with a relative lateral movement between the scene and the recording mechanism. The recording is played back and viewed through a light filter which has a greater optical density for one eye than for the other eye. One eye perceives a darker image which appears to lag in time the image perceived by the other eye. The three-dimensional effect can be controlled by controlling the direction and speed of relative movement, the relative optical densities of the filter used for each eye, and the size of and distance from the viewing screen. The invention also includes viewer glasses in which the optical density of one lens is at least 0.3 neutral density darker than the optical density of the other lens, and the difference in optical density between the two lenses is within the range of approximately 0.8 to approximately 2.0 neutral density.