GB570498A - Improvements in or relating to photographic tone correcting masks - Google Patents
Improvements in or relating to photographic tone correcting masksInfo
- Publication number
- GB570498A GB570498A GB13263/43A GB1326343A GB570498A GB 570498 A GB570498 A GB 570498A GB 13263/43 A GB13263/43 A GB 13263/43A GB 1326343 A GB1326343 A GB 1326343A GB 570498 A GB570498 A GB 570498A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transparency
- film
- densities
- curve
- image
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000839 emulsion Substances 0.000 abstract 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 5
- 230000000873 masking effect Effects 0.000 abstract 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract 3
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 abstract 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 2
- 229910021538 borax Inorganic materials 0.000 abstract 2
- 230000008878 coupling Effects 0.000 abstract 2
- 238000010168 coupling process Methods 0.000 abstract 2
- 238000005859 coupling reaction Methods 0.000 abstract 2
- 229910052709 silver Inorganic materials 0.000 abstract 2
- 239000004332 silver Substances 0.000 abstract 2
- 239000004328 sodium tetraborate Substances 0.000 abstract 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N 1,4-Benzenediol Natural products OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 abstract 1
- ZVNPWFOVUDMGRP-UHFFFAOYSA-N 4-methylaminophenol sulfate Chemical compound OS(O)(=O)=O.CNC1=CC=C(O)C=C1.CNC1=CC=C(O)C=C1 ZVNPWFOVUDMGRP-UHFFFAOYSA-N 0.000 abstract 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 abstract 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 1
- 239000000908 ammonium hydroxide Substances 0.000 abstract 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 abstract 1
- 230000000295 complement effect Effects 0.000 abstract 1
- 125000004177 diethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 abstract 1
- PTKRHFQQMJPPJN-UHFFFAOYSA-N dipotassium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium;sulfuric acid Chemical compound [K+].[K+].OS(O)(=O)=O.[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O PTKRHFQQMJPPJN-UHFFFAOYSA-N 0.000 abstract 1
- YAGKRVSRTSUGEY-UHFFFAOYSA-N ferricyanide Chemical compound [Fe+3].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-] YAGKRVSRTSUGEY-UHFFFAOYSA-N 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 230000007935 neutral effect Effects 0.000 abstract 1
- QWYZFXLSWMXLDM-UHFFFAOYSA-M pinacyanol iodide Chemical compound [I-].C1=CC2=CC=CC=C2N(CC)C1=CC=CC1=CC=C(C=CC=C2)C2=[N+]1CC QWYZFXLSWMXLDM-UHFFFAOYSA-M 0.000 abstract 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 abstract 1
- 235000010339 sodium tetraborate Nutrition 0.000 abstract 1
- 238000001228 spectrum Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
- G03C7/18—Processes for the correction of the colour image in subtractive colour photography
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US454933A US2338661A (en) | 1942-08-15 | 1942-08-15 | Photographic tone correction mask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB570498A true GB570498A (en) | 1945-07-10 |
Family
ID=23806670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13263/43A Expired GB570498A (en) | 1942-08-15 | 1943-08-16 | Improvements in or relating to photographic tone correcting masks |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2338661A (enrdf_load_stackoverflow) |
| FR (2) | FR988442A (enrdf_load_stackoverflow) |
| GB (1) | GB570498A (enrdf_load_stackoverflow) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3127268A (en) * | 1964-03-31 | Hellmig | ||
| US2541490A (en) * | 1945-07-11 | 1951-02-13 | Eastman Kodak Co | Tone control in photographic development |
| US2673150A (en) * | 1952-09-12 | 1954-03-23 | Technicolor Motion Picture | Masking of photographic color film |
| US2737457A (en) * | 1952-11-22 | 1956-03-06 | Jerome Flax | Photographic method of tonal scale compensation |
-
0
- FR FR961831D patent/FR961831A/fr not_active Expired
-
1942
- 1942-08-15 US US454933A patent/US2338661A/en not_active Expired - Lifetime
-
1943
- 1943-08-16 GB GB13263/43A patent/GB570498A/en not_active Expired
-
1947
- 1947-08-07 FR FR988442D patent/FR988442A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2338661A (en) | 1944-01-04 |
| FR961831A (enrdf_load_stackoverflow) | 1950-05-23 |
| FR988442A (fr) | 1951-08-27 |
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