US4167327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic printing method
Assignee: Individual
•
Filing: 1978-03-22
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Granted: 1979-09-11
•
Expires: 1998-03-22
Abstract
Abstract A method of photographic printing including making a stepped exposure of a simulation of a properly exposed gray card for a film to be printed having particular D/log E characteristics, and the film-mask-colored element for film having a colored mask, for a number of different periods of time on at least one sheet of photographic paper having certain D/log E characteristics; processing each sheet of paper; comparing each such exposure step of a simulation of a properly exposed gray card to a gray reference to determine the proper exposure time from the step most closely approaching the gray reference; and measuring the intensity of the exposing light to obtain the proper intensity which, with the proper time, determines the exposure to be used to print all film having D/log E characteristics generally similar to the particular D/log E characteristics on paper having D/log E characteristics generally similar to the certain D/log E characteristics.
Inventors
- 👤 Robert F. DiNatale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:17
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/72; G03B27/73
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
153 words
A method of photographic printing comprising: making a stepped exposure of a simulation of a properly exposed gray card for a film to be printed having particular D/log E characteristics, and a film-mask-colored element for film having a colored mask, for a number of different periods of time on at least one sheet of photographic paper having certain D/log E characteristics; processing each sheet of paper; comparing each such exposure step of said simulation of a properly exposed gray card to a gray reference to determine the proper exposure time from the step most closely approaching the gray reference; and measuring the intensity of the exposing light to obtain the proper intensity which, with the proper time, determines the exposure to be used to print all films having D/log E characteristics generally similar to said particular D/log E characteristics on paper having D/log E characteristics generally similar to said certain D/log E characteristics.
Claim 2
Independent Claim
153 words
A method of photographic printing comprising: making a stepped exposure of a simulation of a properly exposed gray card for a film to be printed having particular D/log E characteristics, and a film-mask-colored element for film having a colored mask, for a number of different periods of time on at least one sheet of photographic paper having certain D/log E characteristics; processing each sheet of paper; comparing each such exposure step of said simulation of a properly exposed gray card to a gray reference to determine the proper exposure time from the step most closely approaching the gray reference; and measuring the intensity of the exposing light to obtain the proper intensity which, with the proper time, determines the exposure to be used to print all films having D/log E characteristics generally similar to said particular D/log E characteristics on paper having D/log E characteristics generally similar to said certain D/log E characteristics.
Claim 3
Dependent Claim
124 words
The method of claim 1 further including: making an additional exposure of a simulation of the properly exposed neutral gray card for a film to be printed having said particular D/log E characteristics, and a film-mask-colored element for film having a colored mask, for said proper time at said proper intensity on at least one sheet of photographic paper having said certain D/log E characteristics; processing each sheet of paper; and comparing said additional exposure of said simulation of a gray card to a gray reference to determine the color filtration to be used to print all films having D/log E characteristics generally similar to said particular D/log E characteristics on paper having D/log E characteristics generally similar to said certain D/log E characteristics.
Claim 4
Dependent Claim
14 words
The method of claim 2 in which said gray reference is midtone and neutral.
Claim 5
Dependent Claim
18 words
The method of claim 2 in which said additional exposure is made through a color filter calculator device.
Claim 6
Dependent Claim
12 words
The method of claim 1 in which said gray reference is midtone.
Claim 7
Dependent Claim
52 words
The method of claim 1 in which said comparing of each such exposure step includes imposing on said gray reference and exposure steps filtration similar in color to any color cast of said exposure steps to minimize the effect of any color difference between said gray reference and exposure steps during comparison.
Claim 8
Dependent Claim
45 words
The method of claim 1 further including imposing on said exposure steps filtration complementary in color to any color cast of said exposure steps to neutralize any color difference between said exposure steps and gray reference to determine the approximate color filtration to be used.
Claim 9
Independent Claim
261 words
A method of photographic printing comprising: making a stepped exposure of a simulation of a properly exposed gray card for a film to be printed having particular D/log E characteristics, and a film-mask-colored element for film having a colored mask, for a number of different periods of time on at least one sheet of photographic paper having certain D/log E characteristics; processing each sheet of paper; comparing each such exposure step of said simulation of a properly exposed gray card to a gray reference to determine the proper exposure time from the step most closely approaching the gray reference; measuring the intensity of the exposing light to obtain the proper intensity which, with the proper time, determines the exposure to be used to print all films having D/log E characteristics generally similar to said particular D/log E characteristics on paper having D/log E characteristics generally similar to said certain D/log E characteristics; making an additional exposure of a simulation of a properly exposed neutral gray card for a film to be printed having said particular D/log E characteristics, and a film-mask-colored element for film having a colored mask, for said proper time at said proper intensity on at least one sheet of photographic paper having said certain D/log E characteristics; processing each sheet of paper; and comparing said additional exposure of said simulation of a gray card to a gray reference to determine the color filtration to be used to print all films having D/log E characteristics on paper having D/log E characteristics generally similar to said certain D/log E characteristics.
Claim 10
Independent Claim
261 words
A method of photographic printing comprising: making a stepped exposure of a simulation of a properly exposed gray card for a film to be printed having particular D/log E characteristics, and a film-mask-colored element for film having a colored mask, for a number of different periods of time on at least one sheet of photographic paper having certain D/log E characteristics; processing each sheet of paper; comparing each such exposure step of said simulation of a properly exposed gray card to a gray reference to determine the proper exposure time from the step most closely approaching the gray reference; measuring the intensity of the exposing light to obtain the proper intensity which, with the proper time, determines the exposure to be used to print all films having D/log E characteristics generally similar to said particular D/log E characteristics on paper having D/log E characteristics generally similar to said certain D/log E characteristics; making an additional exposure of a simulation of a properly exposed neutral gray card for a film to be printed having said particular D/log E characteristics, and a film-mask-colored element for film having a colored mask, for said proper time at said proper intensity on at least one sheet of photographic paper having said certain D/log E characteristics; processing each sheet of paper; and comparing said additional exposure of said simulation of a gray card to a gray reference to determine the color filtration to be used to print all films having D/log E characteristics on paper having D/log E characteristics generally similar to said certain D/log E characteristics.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-09-10 | 1983-03-12 | 1983-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-09-10 | 1987-03-12 | 1987-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-09-10 | 1991-03-12 | 1991-09-11 | $7700.00 | Window Closed / Lapsed |