US4267264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color photographic recording material
Assignee: Agfa Gevaert AG
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Filing: 1980-01-28
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Granted: 1981-05-12
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Expires: 2000-01-28
Abstract
Abstract A high sensitivity color photographic recording medium has at least two red sensitive component silver halide emulsion layer and at least three green sensitive component silver halide emulsion layers, the sensitivity of layers of the same spectral sensitivity increasing in the direction from the layer support upwards and the more sensitive red-sensitive silver halide emulsion being located between two of the green-sensitive silver halide emulsion layers.
Inventors
- 👤 Joachim W. Lohmann
- 👤 Otto Lapp
- 👤 Erwin Ranz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:15
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/3029; G03C7/3022; G03C2007/3024; G03C2007/3034
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
287 words
The color photographic recording material consisting of (a) a layer support having applied to it a plurality of layers including light-sensitive layers and including (b) three green-sensitive silver halide emulsion component layers of different speed each having associated with it a magenta-forming coupler including a least-sensitive green-sensitive silver halide emulsion layer, a more-sensitive green-sensitive silver halide emulsion layer having the ratio of silver halide to coupler higher than in the least-sensitive green-sensitive layer and arranged further from said layer support than said least-sensitive green-sensitive layer and a most-sensitive green-sensitive silver halide emulsion layer having a ratio of silver halide to coupler higher than in the more-sensitive green-sensitive layer and arranged further from said layer support than said more-sensitive green-sensitive layer; (c) two red-sensitive silver halide component layers of different speed each having associated with it a cyan-forming coupler, including a less-sensitive red-sensitive silver halide emulsion layer, and a more-sensitive red-sensitive silver halide emulsion layer having a ratio of silver halide to coupler higher than in the less-sensitive red-sensitive layer; (d) at least one non-light-sensitive yellow filter layer is located further removed from the layer support than any one of said red-sensitive layers, and green-sensitive layers, and (e) one or more blue-sensitive silver halide emulsion layers each having associated with it a yellow-forming coupler and being located further removed from the layer support than said yellow filter layer; wherein the improvement comprises each of the green-sensitive layers being arranged further away from the layer support than the less-sensitive red-sensitive layer, the more-sensitive red-sensitive layer is located between the more-sensitive green-sensitive layer and the most-sensitive green-sensitive layer, whereby said more sensitive red-sensitive layer being less adjacent the layer support than said more-sensitive green-sensitive layer and said less-sensitive red-sensitive layer.
Claim 2
Dependent Claim
287 words
The color photographic recording material consisting of (a) a layer support having applied to it a plurality of layers including light-sensitive layers and including (b) three green-sensitive silver halide emulsion component layers of different speed each having associated with it a magenta-forming coupler including a least-sensitive green-sensitive silver halide emulsion layer, a more-sensitive green-sensitive silver halide emulsion layer having the ratio of silver halide to coupler higher than in the least-sensitive green-sensitive layer and arranged further from said layer support than said least-sensitive green-sensitive layer and a most-sensitive green-sensitive silver halide emulsion layer having a ratio of silver halide to coupler higher than in the more-sensitive green-sensitive layer and arranged further from said layer support than said more-sensitive green-sensitive layer; (c) two red-sensitive silver halide component layers of different speed each having associated with it a cyan-forming coupler, including a less-sensitive red-sensitive silver halide emulsion layer, and a more-sensitive red-sensitive silver halide emulsion layer having a ratio of silver halide to coupler higher than in the less-sensitive red-sensitive layer; (d) at least one non-light-sensitive yellow filter layer is located further removed from the layer support than any one of said red-sensitive layers, and green-sensitive layers, and (e) one or more blue-sensitive silver halide emulsion layers each having associated with it a yellow-forming coupler and being located further removed from the layer support than said yellow filter layer; wherein the improvement comprises each of the green-sensitive layers being arranged further away from the layer support than the less-sensitive red-sensitive layer, the more-sensitive red-sensitive layer is located between the more-sensitive green-sensitive layer and the most-sensitive green-sensitive layer, whereby said more sensitive red-sensitive layer being less adjacent the layer support than said more-sensitive green-sensitive layer and said less-sensitive red-sensitive layer.
Claim 3
Dependent Claim
284 words
The color photographic recording material consisting of (a) a layer support having applied to it a plurality of layers including light-sensitive layers and including (b) three green-sensitive silver halide emulsion component layers of different speed each having associated with it a magenta-forming coupler including a least-sensitive green-sensitive layer silver halide emulsion, a more-sensitive green-sensitive silver halide emulsion layer, having the ratio of silver halide to coupler higher than in the least-sensitive green-sensitive layer and arranged further from said layer support than said least-sensitive green-sensitive layer and a most-sensitive green-sensitive silver halide emulsion layer having a ratio of silver halide to coupler higher than in the more-sensitive green-sensitive layer and arranged further from said layer support than said more-sensitive green-sensitive layer; (c) two red-sensitive silver halide component layers of different speed each having associated with it a cyan-forming coupler, including a less-sensitive red-sensitive silver halide emulsion layer, and a more-sensitive red-sensitive silver halide emulsion layer having a ratio of silver halide to coupler higher than in the less-sensitive red-sensitive layer; (d) at least one non-light-sensitive yellow filter layer located further removed from the layer support than any one of said red-sensitive and green-sensitive layers, and (e) one or more blue-sensitive silver halide emulsion layers each having associated with it a yellow-forming coupler and being located further removed from the layer support than said yellow filter layer; wherein the improvement comprises each of the green-sensitive layers being arranged further away from the layer support than the less-sensitive red-sensitive layer the more-sensitive red-sensitive layer is located between the least-sensitive green-sensitive layer and the more-sensitive green-sensitive layer, whereby said more-sensitive red-sensitive layer being less adjacent the layer support than said least-sensitive green-sensitive layer and said less-sensitive red-sensitive layer.
Claim 4
Dependent Claim
284 words
The color photographic recording material consisting of (a) a layer support having applied to it a plurality of layers including light-sensitive layers and including (b) three green-sensitive silver halide emulsion component layers of different speed each having associated with it a magenta-forming coupler including a least-sensitive green-sensitive layer silver halide emulsion, a more-sensitive green-sensitive silver halide emulsion layer, having the ratio of silver halide to coupler higher than in the least-sensitive green-sensitive layer and arranged further from said layer support than said least-sensitive green-sensitive layer and a most-sensitive green-sensitive silver halide emulsion layer having a ratio of silver halide to coupler higher than in the more-sensitive green-sensitive layer and arranged further from said layer support than said more-sensitive green-sensitive layer; (c) two red-sensitive silver halide component layers of different speed each having associated with it a cyan-forming coupler, including a less-sensitive red-sensitive silver halide emulsion layer, and a more-sensitive red-sensitive silver halide emulsion layer having a ratio of silver halide to coupler higher than in the less-sensitive red-sensitive layer; (d) at least one non-light-sensitive yellow filter layer located further removed from the layer support than any one of said red-sensitive and green-sensitive layers, and (e) one or more blue-sensitive silver halide emulsion layers each having associated with it a yellow-forming coupler and being located further removed from the layer support than said yellow filter layer; wherein the improvement comprises each of the green-sensitive layers being arranged further away from the layer support than the less-sensitive red-sensitive layer the more-sensitive red-sensitive layer is located between the least-sensitive green-sensitive layer and the more-sensitive green-sensitive layer, whereby said more-sensitive red-sensitive layer being less adjacent the layer support than said least-sensitive green-sensitive layer and said less-sensitive red-sensitive layer.
Claim 5
Dependent Claim
31 words
A material as claimed in claim 2 in which the difference in effective sensitivities of layers producing the same component color image is from 0.2 to 1.0 relative log I×t units.
Claim 6
Dependent Claim
31 words
A material as claimed in claim 1 in which the difference in effective sensitivities of layers producing the same component colour image is from 0.2 to 1.0 relative log I×t units.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-05-11 | 1984-11-10 | 1985-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-11 | 1988-11-10 | 1989-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-11 | 1992-11-10 | 1993-05-12 | $7700.00 | Window Closed / Lapsed |