Light polarizing lamination and system employing same
OwnerFrancis L. Woolley, Jr.inventor
Life of this patent
Estimating the term…
Abstract
Undesirable visual effects, such as blinking, observed when an animated image produced by means of polarized light is viewed by means of a color television camera or a similar device which is sensitive to the angle of polarization of light which it views, are avoided by use of animating lamination which includes, between the layer of polarmotion material and the artwork transparency, an intermediate depolarizing layer of vellum-parchment drawing paper.
Claims15
A lamination responsive to polarized light of varying direction of polarization applied to a side thereof to produce at its opposite side a light image presenting the illusion of motion of at least parts thereof, comprising the assembly of:
- a polarizing layer at least portions of which are light-transmissive and are polarized in different directions;
- a depolarizing layer of light-transmissive material having the characteristic of substantially randomizing the polarization directions of polarized light passing through it and overlying one side of the polarizing layer;
- and
- an artwork transparency positioned on the same side of the polarizing layer as the depolarizing layer, said artwork transparency containing image-forming areas of different visual appearances optically aligned with corresponding different ones of said light-transmissive portions of said polarizing layer.
Dependencies are inferred from the claim text.