Multilayer photographic element containing ultrathin tabular grain silver halide emulsion
AssigneeEastman Kodak Company
InventorJeffrey Louis Hall
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AssigneeEastman Kodak Company
InventorJeffrey Louis Hall
Estimating the term…
A photographic element comprises a support bearing two or more silver halide emulsion image-forming layers each containing ultrathin tabular grains or a support bearing at least three image-forming layers for forming images of different color in which at least one of the layers contains ultrathin tabular grains, wherein the imaging silver contained in the total of all the image-forming layers of the element is as described in subparts (1), (2) and (3): (1) ultrathin tabular grains, having a thickness of less than 0.07 microns, comprise at least 25 wt % of the total imaging silver content of subparts (1), (2), and (3); (2) (a) tabular grains of thickness at least 0.10 microns and (b) non-tabular grains having an ECD of at least 0.15 microns and less than 0.70 microns, comprise not more than 50 wt % of the total imaging silver content of subparts (1), (2), and (3); and (3) tabular grains having a thickness of at least 0.07 microns and a thickness less than 0.10 microns comprise not more than 50 wt % of the total imaging silver content of subparts (1), (2), and (3).
A photographic element comprising a support bearing one or more silver halide emulsion image-forming layers sensitive to blue light, one or more such layers sensitive to green light, and one or more such layers sensitive to red light, wherein the imaging silver, contained in the total of all the image-forming layers of the element, comprises larger grain sizes sufficient to provide an ISO speed of 100 or faster, and, is as described in subparts (1), (2) and (3):
A photographic element which comprises two or more silver halide emulsion layers containing imaging silver of differing sensitivity to light, at least two of said layers containing ultrathin tabular grains, wherein the imaging silver, contained in the total of all the image-forming layers of the element, is as described in subparts (1), (2) and (3):
Dependencies are inferred from the claim text.