Phosphor film composition having sensitivity in the red for use in image capture
AssigneeHewlett-Packard Company
InventorsWilliam R. Trutna, Jr., Rene P. Helbing
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Abstract
A composition for use in constructing a photosensitive film for recording an image. The composition includes first, second, and third particle types, each the particle type including a crystalline base material having a trap dopant and a color dopant deposited therein. Each of the color dopants has a different spectral sensitivity. One of the particle types is sensitive to light in the red portion of the visible spectrum. This particle type includes a crystalline base material including an alkaline earth sulfide or selenide doped with Yb.sup.+2.
Claims4
A composition for use in constructing a photosensitive film for recording an image, said composition comprising first, second, and third particle types, each of said particle types comprising a crystalline base material having a trap dopant and a color dopant deposited therein, each of said color dopants having a different spectral sensitivity, wherein one of said particle types is sensitive to light in the red portion of the visible spectrum and comprises a crystalline base material comprising an alkaline earth sulfide or selenide doped with Yb.sup.+2.
Dependencies are inferred from the claim text.