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EP0091326A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Imaging with high aspect ratio tabular grain emulsions and nonplanar support elements

Assignee: Eastman Kodak Co
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Filing: 1983-06-24
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Granted: —
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Expires: 2003-06-24
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Abstract

Abstract A photosensitive element comprising a support and radiation-sensitive imaging means capable of undergoing as a function of at least one of photographic exposure and processing a change in the optical density or mobility of the imaging means is disclosed. The support provides a nonplanar surface pattern forming an array, and the imaging means includes a high aspect ratio tabular grain silver halide emulsion coprised of a dispersing medium and silver halide grains, wherein tabular silver halide grains having a thickness of less than 0.5 micron and a diameter of at least 0.6 micron have an average aspect ratio of greater than 8:1 and account for at least 50 percent of the total projected area of the silver halide grains.

Inventors

  • 👤 Roger S. Research Laboratories Vanheyningen

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-07 09:46
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/0051; G03C7/00; G03C7/04; G03C7/06; G03C7/10; G03C7/12

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 120 words
A photosensitive element comprising a support and radiation-sensitive imaging means capable of undergoing as a function of at least one of photographic exposure and processing a change in the optical density or mobility of said imaging means characterized in that said support provides a nonplanar surface pattern forming an array and said imaging means includes a high aspect ratio tabular grain silver halide emulsion comprised of a dispersing medium and silver halide grains, wherein tabular silver halide grains having a thickness of less than 0.5 micron and a diameter of at least 0.6 micron have an average aspect ratio of greater than 8:1 and account for at least 50 percent of the total projected area of the silver halide grains.
Claim 2
Dependent Claim 120 words
A photosensitive element comprising a support and radiation-sensitive imaging means capable of undergoing as a function of at least one of photographic exposure and processing a change in the optical density or mobility of said imaging means characterized in that said support provides a nonplanar surface pattern forming an array and said imaging means includes a high aspect ratio tabular grain silver halide emulsion comprised of a dispersing medium and silver halide grains, wherein tabular silver halide grains having a thickness of less than 0.5 micron and a diameter of at least 0.6 micron have an average aspect ratio of greater than 8:1 and account for at least 50 percent of the total projected area of the silver halide grains.

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