Color photographic element containing three silver halide layers sensitive to infrared
US4619892A · kind A · utility
68Cited by
3References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 7, 1985 |
| Grant date | Oct 28, 1986 |
| Priority date | — |
| Expiry date | Nov 7, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/145
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Full color photographic images are produced by exposure of a radiation-sensitive element comprising at least three silver halide emulsion layers. At least two silver halide emulsion layers are sensitized to infrared radiation. Selectively absorptive filter layers and/or differential sensitivities between emulsion layers are used to prevent exposure of other layers to radiation used to expose a single layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.