Dual vesicular and infrared imaging media
AssigneeOptodot Corporation
InventorsSteven Allen Carlson, Benjamin Sloan
Life of this patent
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Abstract
Provided is a laser imageable media that forms both a vesicular bubble image and an infrared image upon exposure to laser radiation. The laser imageable media comprises (1) a substrate, preferably a transparent plastic substrate, (2) an infrared absorbing layer comprising an infrared absorbing compound, preferably an aminium radical cation compound, that exhibits a reduction in infrared absorption when exposed to the laser radiation, and (3) a polymeric layer comprising an organic polymer, preferably nitrocellulose, overlying the infrared absorbing layer. The vesicular image on a transparent plastic substrate is readable with a visible scanner without the use of any reflective background material behind the transparent plastic substrate.
Claims16
A laser imageable media comprising (1) a transparent plastic substrate, (2) an infrared absorbing layer comprising greater than 50% by weight of an infrared absorbing compound that exhibits a reduction in infrared absorption in the 700 to 1000 nm wavelength region upon exposure to laser imaging radiation, and (3) a polymeric layer directly adjacent to said infrared absorbing layer, wherein said polymeric layer comprises an organic polymer, and wherein both a vesicular image and an infrared image are formed in said media upon exposure to laser imaging radiation and said vesicular image is readable with a visible scanner.
A laser imageable media comprising (1) a transparent substrate, (2) an infrared absorbing layer comprising greater than 50% by weight of an infrared absorbing compound comprising an aminium radical cation compound that exhibits a reduction in infrared absorption in the 700 to 1000 nm wavelength region upon exposure to laser imaging radiation, and (3) a polymeric layer directly adjacent to said infrared absorbing layer, wherein said polymeric layer comprises nitrocellulose, and wherein both a vesicular image and an infrared image are formed in said media upon exposure to laser imaging radiation and said vesicular image is readable with a visible scanner.
A laser imageable media comprising (1) a transparent plastic substrate, (2) an infrared absorbing layer comprising greater than 50% by weight of an infrared absorbing compound that exhibits a reduction in infrared absorption in the 700 to 1000 nm wavelength region upon exposure to laser imaging radiation, wherein the optical density of said infrared absorbing layer is less than 0.4 at all wavelengths within a region from 700 to 2000 nm, and (3) a polymeric layer directly adjacent to said infrared absorbing layer, wherein said polymeric layer comprises an organic polymer, wherein both a vesicular image and an infrared image are formed in said media upon exposure to laser imaging radiation and said vesicular image is readable with a visible scanner.
Dependencies are inferred from the claim text.