Optics: motion pictures – Special effects – Depth illusion
Patent
1986-10-10
1987-11-10
Hix, L. T.
Optics: motion pictures
Special effects
Depth illusion
350133, G03B 2132
Patent
active
047053712
ABSTRACT:
A method for creating a 3-D effect is disclosed in which a scene is recorded with a relative lateral movemnet 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, thereby causing one eye to perceive a darker image which appears to lag in time behind the image perceived by the other eye. The result is a three-dimensional effect which 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 the distance from the viewing screen. The invention also includes viewer glasses with a spectral density gradient in which the optical density of one lens is at least 0.3 optical density darker than the optical density of the other lens, and the differene in optical densities between the two lenses is preferably within the range of approximately 0.8 to approximately 2.0.
REFERENCES:
patent: 2688900 (1954-09-01), Silverman
patent: 2996949 (1961-08-01), LeRay
patent: 3256776 (1966-06-01), Land et al.
patent: 3275745 (1966-09-01), Var
patent: 3432220 (1969-03-01), Schreiner
patent: 3598032 (1971-08-01), Bohn
patent: 3697675 (1972-10-01), Beard et al.
patent: 3712199 (1973-01-01), Songer, Jr.
patent: 3785720 (1974-01-01), Kyryluk
patent: 4131342 (1978-12-01), Dudley
Lit, "Magnitude of the Pulfrich Stereophenomenon as a Function of Target Thickness", Journal of the Optical Society of America, pp. 321-327, Apr. 1960, vol. 50, No. 4.
Brown Brian W.
Hix L. T,.
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