Method of forming color image from a color reversal photographic material comprising a specified iodide content and spectral distribution
US5024925A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 21, 1989 |
| Grant date | Jun 18, 1991 |
| Priority date | — |
| Expiry date | Jul 21, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C7/3041
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of forming a color image which comprises subjecting a silver halide color reversal photographic material to imagewise exposure and then to color reversal processing, said color reversal photographic material comprising a support having provided thereon at least one red-sensitive emulsion layer, at least one green-sensitive emulsion layer and at least one blue-sensitive emulsion layer wherein the emulsion layers have an average silver iodide content of up to 5 mol %, and wherein the peak sensitivity of the red layer is in a range between 615 and 640 nm, wherein on the shorter wavelength side, 80% of the peak is in a range between 600 and 633 nm, 50% of the peak is in a range between 585 and 625 nm and 25% of the peak is in a range between 570 and 615 nm, and wherein on the longer wavelength side, 80% of the peak is in a range between 620 and 648 nm, 50% of the peak is in a range between 625 and 655 nm and 25% of the peak is in a range between 630 and 665 nm, wherein the wavelength difference between the longer and shorter side at which the sensitivity is 25% of the peak is in a range of 30 to 90 nm, and at least one layer has a means for providing an interimage effect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.