Color photographic silver halide material

US6562557B2 · kind B2 · utility

Assignee

• Agfa-Gevaert NV · BE

Inventors

• Klaus Wagner · Bensberg, DE
• Heinz-Dieter Schutz · Bensberg, DE
• Peter Bell · Neunburg vorm Wald, DE
• Lothar Endres · Bensberg, DE
• Detlev Kapitza · Leverkusen, DE
• Thomas Stetzer · Langenfeld, DE

Key dates

• Filing date: Jul 19, 2001
• Grant date: May 13, 2003
• Expiry date: Jul 19, 2021

Classification

• Technology area (CPC G): Physics
• CPC primary: G03C2200/22
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A color photographic material comprising a transparent support, at least one blue-sensitive, predominantly yellow-coupling silver halide emulsion layer, at least one green-sensitive, predominantly magenta-coupling silver halide emulsion layer (PP-1) and at least one red-sensitive, predominantly cyan-coupling silver halide emulsion layer (BG-1), characterised in that the spectral sensitivity distribution of BG-1 is characterised in that605≦&lgr;max≦630 nm, 0.1≦&Dgr;lgE640≦0.6 and 1.8≦&Dgr;lgE680, wherein &lgr;max represents the wavelength at which the maximum sensitivity occurs, &Dgr;lgE640 represents the difference of the logarithmic sensitivity at &lgr;max minus the logarithmic sensitivity at 640 nm, and &Dgr;lgE680 represents the difference of the logarithmic sensitivity at &lgr;max minus the logarithmic sensitivity at 680 nm, and the sensitivities are determined after exposure and processing of the material at a cyan color density which is formed by coupling with developer oxidation product and which is 0.5 above the minimum density, is distinguished by its high sensitivity to light, its good color reproduction both when taking photographs in standard light and in…