US5939246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color photographic silver halide negative imaging material and process
Assignee: Eastman Kodak Co
•
Filing: 1998-01-15
•
Granted: 1999-08-17
•
Expires: 2018-01-15
Abstract
Abstract A process of compositing two or more separate images comprising: (a) imagewise exposing a color negative photographic recording material to a subject in front of a uniformly colored screen background, wherein the photographic recording material comprises a support bearing red light, green light, and blue light sensitive color records, and at least one distributed red light absorbing compound in an amount such as to reduce the sensitivity of the red light sensitive color record by at least 40%, and the light sensitivities of the green light sensitive color record and the blue light sensitive color record are each reduced by less than 20% by the presence of any distributed light absorbing compounds, (b) forming a color negative image of the subject and screen background by developing the exposed photographic material with a color developing agent, (c) separating the subject image of the color negative from the screen background image, and (d) compositing the separated subject image with a second image. Photographic elements for use in such process are also disclosed. The invention eliminates or substantially reduces red record fringe problems without significantly effecting granularity in the blue and green color records.
Inventors
- 👤 John C. Brewer
- 👤 Donald H. Hunger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:57
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/64; H04N9/74; H04N9/75; G; G03; G03C; G03C5/00; G03C5/04; G03C7/00; G03C7/30; G03C7/3022; G03C7/3029; H04N1/00; H04N1/387; H04N1/3872; G03C1/00; G03C1/005; G03C1/0051; G03C1/76; G03C1/825; G03C2001/0055; G03C2200/00; G03C2200/19; G03C2200/22; Y; Y10; Y10S; Y10S430/00; Y10S430/156; Y10S430/158
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
165 words
A speed balanced color negative photographic recording material comprising a support bearing: a red light sensitive color record comprising at least one red light sensitive silver halide emulsion and at least one cyan dye forming image coupler, a green light sensitive color record comprising at least one green light sensitive silver halide emulsion and at least one magenta dye forming image coupler, a blue light sensitive color record comprising at least one blue light sensitive silver halide emulsion and at least one yellow dye forming image dye forming coupler, and at least one distributed red light absorbing compound, wherein the quantity of distributed red light absorbing compound is such as to reduce the sensitivity of the red light sensitive color record by at least 40%, and the light sensitivities of the green light sensitive color record and the blue light sensitive color record are each reduced by less than 20% by the presence of any distributed green light absorbing compounds or blue light absorbing compounds.
Claim 2
Dependent Claim
165 words
A speed balanced color negative photographic recording material comprising a support bearing: a red light sensitive color record comprising at least one red light sensitive silver halide emulsion and at least one cyan dye forming image coupler, a green light sensitive color record comprising at least one green light sensitive silver halide emulsion and at least one magenta dye forming image coupler, a blue light sensitive color record comprising at least one blue light sensitive silver halide emulsion and at least one yellow dye forming image dye forming coupler, and at least one distributed red light absorbing compound, wherein the quantity of distributed red light absorbing compound is such as to reduce the sensitivity of the red light sensitive color record by at least 40%, and the light sensitivities of the green light sensitive color record and the blue light sensitive color record are each reduced by less than 20% by the presence of any distributed green light absorbing compounds or blue light absorbing compounds.
Claim 3
Dependent Claim
27 words
A material as in claim 1, wherein at least one light sensitive layer of at least one color record comprises a sensitized tabular grain silver halide emulsion.
Claim 4
Dependent Claim
20 words
A material according to claim 2, wherein the tabular grain emulsion has an average aspect ratio greater than about 8.
Claim 5
Dependent Claim
40 words
A material according to claim 3, wherein at least one light sensitive layer of each of the red and the green color records comprises a sensitized tabular grain silver halide emulsion having an average aspect ratio greater than about 8.
Claim 6
Dependent Claim
75 words
A material according to claim 4, wherein the ratio of the average equivalent circular diameter of the largest tabular grain silver halide emulsion of the red color record comprising at least 10% of the total red record silver halide to the average circular diameter of the largest tabular grain silver halide emulsion of the green color record comprising at least 10% of the total green record silver halide is greater than or equal to 1.25.
Claim 7
Dependent Claim
13 words
A material according to claim 5, wherein the ratio is greater than 1.4.
Claim 8
Dependent Claim
13 words
A material according to claim 5, wherein the ratio is greater than 1.5.
Claim 9
Dependent Claim
34 words
A material according to claim 5, wherein the majority of the photographic light sensitive layers of the photographic material comprise sensitized tabular grain silver halide emulsions having average aspect ratios greater than about 8.
Claim 10
Dependent Claim
25 words
A material according to claim 5, wherein the sensitivities of the red, green and blue light sensitive color records are balanced for tungsten light exposures.
Claim 11
Dependent Claim
25 words
A material according to claim 5, wherein the sensitivities of the red, green and blue light sensitive color records are balanced for day light exposures.
Claim 12
Dependent Claim
29 words
A material according to claim 1, wherein the sensitivities of the red, green and blue light sensitive color records are balanced for tungsten light exposures or day light exposures.
Claim 13
Dependent Claim
246 words
A process of compositing two or more separate images comprising the steps of: (a) imagewise exposing a color negative photographic recording material to a subject in front of a uniformly colored screen background, wherein the photographic recording material comprises a support bearing a red light sensitive color record comprising at least one red light sensitive silver halide emulsion and at least one cyan dye forming image coupler, a green light sensitive color record comprising at least one green light sensitive silver halide emulsion and at least one magenta dye forming image coupler, and a blue light sensitive color record comprising at least one blue light sensitive silver halide emulsion and at least one yellow dye forming image dye forming coupler, and further comprises at least one distributed red light absorbing compound, wherein the quantity of distributed red light absorbing compound is such as to reduce the sensitivity of the red light sensitive color record by at least 40%, and the light sensitivities of the green light sensitive color record and the blue light sensitive color record are each reduced by less than 20% by the presence of any distributed green light absorbing compounds or blue light absorbing compounds, (b) forming a color negative image of the subject and screen background by developing the exposed photographic material with a color developing agent, (c) separating the subject image of the color negative from the screen background image, and (d) compositing the separated subject image with a second image.
Claim 14
Dependent Claim
246 words
A process of compositing two or more separate images comprising the steps of: (a) imagewise exposing a color negative photographic recording material to a subject in front of a uniformly colored screen background, wherein the photographic recording material comprises a support bearing a red light sensitive color record comprising at least one red light sensitive silver halide emulsion and at least one cyan dye forming image coupler, a green light sensitive color record comprising at least one green light sensitive silver halide emulsion and at least one magenta dye forming image coupler, and a blue light sensitive color record comprising at least one blue light sensitive silver halide emulsion and at least one yellow dye forming image dye forming coupler, and further comprises at least one distributed red light absorbing compound, wherein the quantity of distributed red light absorbing compound is such as to reduce the sensitivity of the red light sensitive color record by at least 40%, and the light sensitivities of the green light sensitive color record and the blue light sensitive color record are each reduced by less than 20% by the presence of any distributed green light absorbing compounds or blue light absorbing compounds, (b) forming a color negative image of the subject and screen background by developing the exposed photographic material with a color developing agent, (c) separating the subject image of the color negative from the screen background image, and (d) compositing the separated subject image with a second image.
Claim 15
Dependent Claim
31 words
A process as in claim 12, wherein at least one light sensitive layer of at least one color record of the photographic material comprises a sensitized tabular grain silver halide emulsion.
Claim 16
Dependent Claim
20 words
A process according to claim 13, wherein the tabular grain emulsion has an average aspect ratio greater than about 8.
Claim 17
Dependent Claim
44 words
A process according to claim 14, wherein at least one light sensitive layer of each of the red and the green color records of the photographic material comprises a sensitized tabular grain silver halide emulsion having an average aspect ratio greater than about 8.
Claim 18
Dependent Claim
75 words
A process according to claim 15, wherein the ratio of the average equivalent circular diameter of the largest tabular grain silver halide emulsion of the red color record comprising at least 10% of the total red record silver halide to the average circular diameter of the largest tabular grain silver halide emulsion of the green color record comprising at least 10% of the total green record silver halide is greater than or equal to 1.25.
Claim 19
Dependent Claim
13 words
A process according to claim 16, wherein the ratio is greater than 1.4.
Claim 20
Dependent Claim
13 words
A process according to claim 16, wherein the ratio is greater than 1.5.
Claim 21
Dependent Claim
34 words
A process according to claim 16, wherein the majority of the photographic light sensitive layers of the photographic material comprise sensitized tabular grain silver halide emulsions having average aspect ratios greater than about 8.
Claim 22
Dependent Claim
25 words
A process according to claim 16, wherein the sensitivities of the red, green and blue light sensitive color records are balanced for tungsten light exposures.
Claim 23
Dependent Claim
25 words
A process according to claim 16, wherein the sensitivities of the red, green and blue light sensitive color records are balanced for day light exposures.
Claim 24
Dependent Claim
22 words
A process according to claim 12, wherein the uniformly colored screen background comprises a blue screen, green screen, or black screen background.
Claim 25
Dependent Claim
17 words
A process according to claim 22, wherein the uniformly colored screen background comprises a blue screen background.
Claim 26
Dependent Claim
17 words
A process according to claim 22, wherein the uniformly colored screen background comprises a green screen background.
Claim 27
Dependent Claim
35 words
A process according to claim 22, wherein the color negative image is digitized with a film scanner and the subject image of the color negative is separated from the screen background image with software algorithms.
References Cited (Backward Citations)
US4312941A
Cited
US4391884A
Cited
US4439520A
Cited
US4678740A
Cited
US4746600A
Cited
US4740454A
Cited
US4833069A
Cited
US4855220A
Cited
US4956269A
Cited
EP0566077A2
Cited
US5308747A
Cited
US5395744A
Cited
US5283164A
Cited
WO1994024830A1
Cited
US5399469A
Cited
EP0680205A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-08-16 | 2003-02-15 | 2003-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-08-16 | 2007-02-15 | 2007-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-08-16 | 2011-02-15 | 2011-08-17 | $7700.00 | Window Closed / Lapsed |