Patent ID: 6404464
Filing Date: 2002-06-11
Classification: B82Y,C09D,C09K,E06B,F24S,G01D,G02B,G02F,Y02E

Abstract:
A polarization-encoded composite image structure for stereoscopically viewing 3-D objects graphically represented therein, said polarization-encoded composite image structure comprising:(1) a substrate having radiation absorbing characteristics; (2) a left-perspective image structure formed on said substrate, and containing (i) spectrally-tuned microflakes, each being made from left-handed circularly polarizing (LHCP) material having left-handed circularly-polarizing reflection characteristics over a preselected band of the electromagnetic spectrum in order to produce additive-primary color effects within the vision system of a human viewer, and (ii) broadband microflakes made from LHCP material having left-handed circularly-polarizing reflection characteristics over a substantial portion of the visible-band of the electromagnetic spectrum in order to produce super-white color effects within the vision system of a human viewer; and (3) a right-perspective image structure formed on said substrate and containing (i) spectrally-tuned microflakes, each being made from right-handed circularly polarizing (RHCP) material having right-handed circularly-polarizing reflection characteristics over a preselected band of the electromagnetic spectrum in order to produce additive-primary color effects within the vision system of said human viewer, and (ii) broadband microflakes made from RHCP material having right-handed circularly-polarizing reflection characteristics over a substantial portion of the visible-band of the electromagnetic spectrum in order to produce super-white color effects within the vision system of said human viewer.