Photographic element for color imaging
US6180328A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 1999 |
| Grant date | Jan 30, 2001 |
| Priority date | — |
| Expiry date | Dec 28, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C2200/20
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is a color photographic element comprising at least five imaging layers including: PA1 a first light sensitive silver halide imaging layer having associated therewith a cyan image dye-forming coupler; PA1 a second light sensitive silver halide imaging layer having associated therewith a magenta image dye-forming coupler; PA1 a third light sensitive silver halide imaging layer having associated therewith a yellow image dye-forming coupler; and PA1 a fourth light sensitive silver halide imaging layer having associated therewith a fourth image dye-forming coupler for which the normalized spectral transmission density distribution curve of the dye formed by the fourth image dye-forming coupler upon reaction with color developer has a CIELAB hue angle, h.sub.ab, from 225 to 310.degree.; and PA1 a fifth light sensitive silver halide imaging layer having associated therewith a fifth image dye-forming coupler for which the normalized spectral transmission density distribution curve of the dye formed by the fifth image dye-forming coupler upon reaction with color developer has a CIELAB hue angle, h.sub.ab, from not less than 355 to not more than 75.degree.. Such an element enables…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.