Light polarizing structure and process therefor utilizing cylindrical-shaped cavities within an isotropic sheet

Claim 1

A LIGHT POLARIZING STRUCTURE WHICH COMPRISES A GENERALLY FLAT SHEET OF TRANSPARENT SUBSTANTIALLY ISOTROPIC SOLID MATERIAL AND NUMEROUS CAVITIES CONTAINING TRANSPARENT FLUID MATERIAL OF DIFFERENT REFRACTIVE INDEX FROM SAID SOLID MATERIAL DISPOSED WITHIN SAID SOLID MATERIAL, SAID CAVITIES BEING GENERALLY CYLINDRICAL IN SHAPE WITH A DIAMETER TO ALTITUDE RATIO OF AT LEAST ABOUT 10, AND HAVING BASES WHICH ARE SUBSTANTIALLY FLAT AND GENERALLY PARALLEL TO EACH OTHER AND WHICH LIE GENERALLY PARALLEL TO THE PLANE OF SAID SHEET OF SOLID MATERIAL AND HAVING ALTITUDES WHICH ARE GENERALLY PARALLEL TO ONE ANOTHER AND ARE GENERALLY PERPENDICULAR TO THE PLANE OF SAID SHEET OF SOLID MATERIAL, THE MAJORITY OF SAID CAVITIES HAVING ALTITUDES OF AT LEAST 1 MICRON AND BEING SEPARATED FROM ONE ANOTHER BY SECTIONS OF SAID SOLID MATERIAL AT LEAST 1 MICRON THICK, SAID CAVITIES BEING SUFFICIENTLY NUMEROUS SO THAT LIGHT PASSING THROUGH SAID SHEET TRAVERSES ON THE AVERAGE AT LEAST TEN FLUID-FILLED MATERIAL INTERFACES, AND THE DENSITY OF SAID CAVITY-FILLED SHEET BEING AT LEAST 20% OF THE THEORETICAL DENSITY OF SAID SOLID MATERIAL.