US3776734A - Photosensitive aluminum plate of improved storage stability - Google Patents
Photosensitive aluminum plate of improved storage stability Download PDFInfo
- Publication number
- US3776734A US3776734A US00230449A US3776734DA US3776734A US 3776734 A US3776734 A US 3776734A US 00230449 A US00230449 A US 00230449A US 3776734D A US3776734D A US 3776734DA US 3776734 A US3776734 A US 3776734A
- Authority
- US
- United States
- Prior art keywords
- photosensitive
- aluminum plate
- aluminum
- silver
- oxide film
- 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 - Lifetime
Links
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 47
- 238000003860 storage Methods 0.000 title description 5
- 229910052709 silver Inorganic materials 0.000 claims abstract description 12
- 239000004332 silver Substances 0.000 claims abstract description 12
- -1 silver halide Chemical class 0.000 claims abstract description 11
- 108010010803 Gelatin Proteins 0.000 claims description 9
- 239000008273 gelatin Substances 0.000 claims description 9
- 229920000159 gelatin Polymers 0.000 claims description 9
- 235000019322 gelatine Nutrition 0.000 claims description 9
- 235000011852 gelatine desserts Nutrition 0.000 claims description 9
- 229910000838 Al alloy Inorganic materials 0.000 claims description 8
- 239000000084 colloidal system Substances 0.000 claims description 8
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 4
- ADZWSOLPGZMUMY-UHFFFAOYSA-M silver bromide Chemical compound [Ag]Br ADZWSOLPGZMUMY-UHFFFAOYSA-M 0.000 claims description 4
- 229920001817 Agar Polymers 0.000 claims description 3
- 241000206672 Gelidium Species 0.000 claims description 3
- 229920000084 Gum arabic Polymers 0.000 claims description 3
- 239000000205 acacia gum Substances 0.000 claims description 3
- 235000010489 acacia gum Nutrition 0.000 claims description 3
- 235000010419 agar Nutrition 0.000 claims description 3
- 229920000609 methyl cellulose Polymers 0.000 claims description 3
- 239000001923 methylcellulose Substances 0.000 claims description 3
- 235000010981 methylcellulose Nutrition 0.000 claims description 3
- VITIJXJNRKRDKF-UHFFFAOYSA-N 3-methyl-4-phenyl-1h-1,2,4-triazole-5-thione Chemical compound CC1=NNC(=S)N1C1=CC=CC=C1 VITIJXJNRKRDKF-UHFFFAOYSA-N 0.000 claims description 2
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical group OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 2
- 229910021607 Silver chloride Inorganic materials 0.000 claims description 2
- WPPDFTBPZNZZRP-UHFFFAOYSA-N aluminum copper Chemical compound [Al].[Cu] WPPDFTBPZNZZRP-UHFFFAOYSA-N 0.000 claims description 2
- 235000019422 polyvinyl alcohol Nutrition 0.000 claims description 2
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 claims description 2
- 229910000881 Cu alloy Inorganic materials 0.000 claims 1
- 241000978776 Senegalia senegal Species 0.000 claims 1
- 230000003647 oxidation Effects 0.000 abstract description 7
- 238000007254 oxidation reaction Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 5
- 239000000243 solution Substances 0.000 description 19
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 description 15
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 12
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 239000011148 porous material Substances 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 7
- 150000004820 halides Chemical class 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 6
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 description 6
- 229910001961 silver nitrate Inorganic materials 0.000 description 6
- SNTWKPAKVQFCCF-UHFFFAOYSA-N 2,3-dihydro-1h-triazole Chemical compound N1NC=CN1 SNTWKPAKVQFCCF-UHFFFAOYSA-N 0.000 description 5
- 239000012153 distilled water Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000005275 alloying Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 3
- 235000006408 oxalic acid Nutrition 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 244000215068 Acacia senegal Species 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- OTVCBBXLGYYSNC-UHFFFAOYSA-N 3,4-dimethyl-1h-1,2,4-triazole-5-thione Chemical compound CC1=NN=C(S)N1C OTVCBBXLGYYSNC-UHFFFAOYSA-N 0.000 description 1
- 244000186140 Asperula odorata Species 0.000 description 1
- 235000008526 Galium odoratum Nutrition 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- SJOOOZPMQAWAOP-UHFFFAOYSA-N [Ag].BrCl Chemical compound [Ag].BrCl SJOOOZPMQAWAOP-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910001508 alkali metal halide Inorganic materials 0.000 description 1
- 150000008045 alkali metal halides Chemical class 0.000 description 1
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- IRXRGVFLQOSHOH-UHFFFAOYSA-L dipotassium;oxalate Chemical compound [K+].[K+].[O-]C(=O)C([O-])=O IRXRGVFLQOSHOH-UHFFFAOYSA-L 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- LNOPIUAQISRISI-UHFFFAOYSA-N n'-hydroxy-2-propan-2-ylsulfonylethanimidamide Chemical compound CC(C)S(=O)(=O)CC(N)=NO LNOPIUAQISRISI-UHFFFAOYSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 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
- G03C1/00—Photosensitive materials
- G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
- G03C1/77—Photosensitive materials characterised by the base or auxiliary layers the base being of metal
-
- 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
- G03C1/00—Photosensitive materials
- G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
- G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
- G03C1/34—Fog-inhibitors; Stabilisers; Agents inhibiting latent image regression
- G03C1/346—Organic derivatives of bivalent sulfur, selenium or tellurium
Definitions
- ABSTRACT A photosensitive aluminum plate of improved storagability in which an anodically oxidized aluminum is used as a support and a silver halide is contained as a photosensitive material in the micropores of the oxide film formed on the support by anodic oxidation.
- This invention relates generally to a photosensitive aluminum plate using an anodically oxidized aluminum as a support and containing a silver halide as a photosensitive material in the micropores of the oxide film formed by anodic oxidation of the aluminum support. More particularly, this invention relates to such a photosensitive aluminum plate having improved storage stability.
- metallic aluminum also has the disadvantage that it can be easily damaged by abrasion or pressure exerted against its surface due to its poor hardness, i.e., to its softness, and moreover, since the oxide film naturally formed thereon is generally extremely low in thickness, e.g.,
- the above-described aluminum oxide film may be prepared by passing electricity through an aqueous or nonaqueous solution, either alone or in combination of one or more such solutions, of an inorganic acid such as sulfuric acid, phosphoric acid, chromic acid or boric acid, or of an organic acid such as oxalic acid or sulfamic acid, in which the aluminium is immersed in the solution as the anode.
- an oxide film is formed on the surface of the aluminum.
- many reports have been made, and in particular a detailed explanation on the structure thereof is made in Journal of the Electrical and Chemical Society, 100, (9), 411.
- the oxide film is composed of hexagonal prism units, i.e., cells, vertically standing on the surface of the metallic aluminum, with a pore being present in the central portion of the cells.
- Silver halide photosensitive materials in which an anodically oxidized aluminum plate is used are well known and are described for example in U.S. Pat. Nos. 2,115,339, 2,126,017 and 2,766,119.
- the characteristics of such photosensitive materials are that the silverimage may be protected by the corrosion resistance and durability of the oxidefilm, resulting in the formation of a relatively stable image recording. Therefore, it is necessary not only to simply apply the photosensitive silver salt to the aluminum oxide film, but also to incorporate it into the micropores of the oxide film.
- the photosensitive silver salt in general may be formed by reacting silver nitrate in a solution of gelatin with an alkali metal halide.
- the silver salt prepared in such a conventional manner will be of a particle size within the range of from about 0.05 u to several microns, although the particle size may depend upon the solution mixing method, mix ratios, gelatin concentrations or the like. Since the pore size of the cell is, as shown in the hereinabove described Table 1, within the range of from about 0.01 to 0.05 u, even the smallest silver salt particle prepared in the conventional manner will be too large, thus making it impossible to incorporate it into the pores.
- the silver salt particles incorporated into the pores tend to be reduced by the surrounding aluminum due to the difference in redox potentials between the silver salt and the aluminum. This may cause fogging and thereby shorten the shelf life.
- a method has been proposed in which contact between the substances canv be avoided by using a polymeric binder. This method is also described in the above-described patent specifications. Although a shelf life on the order of 3 to 6 months may be obtained by this method, it is still unsatisfactory from the standpoint of selling or using it..
- An object of the present invention is therefore to provide a photosensitive aluminum plate having an improved shelf life, together with a high sensitivity and a low generation of fog. Another purpose is to provide a method for the preparation of a photosensitive aluminum plate of superior shelf life. 7
- the photosensitive aluminum plate according to this invention contains a photosensitive silver salt(in a hydrophilic colloid)and a 3-mercapto-S-methyl-4-phenyl- 1,2,4-triazole in the micropores of the aluminum oxide film formed on the surface of the aluminum.
- any aluminum alloy may be used. Suitable aluminum alloys are alloys of aluminum with alloying metals, e.g. zinc, silicon, iron and copper can be used. A copper aluminum alloy is preferred.
- the alloying metal can be present at a level of from about O.5-l.O by weight to the aluminium. Preferably from about 0.12 to 0.3 by weight of the alloying metal is used.
- the photosensitive silver salt suitably can be silver bromide, silver chloride, or a mixed silver halide, i.e., silver chlorobromide.
- silver bromide is preferred as the silver halide.
- hydrophilic colloids examples include gelatin, polyvinyl alcohol, methyl cellulose, gum arabic and agar-agar, although in particular gelatin is preferred.
- the amount of hydrophilic colloid which can be used ranges from about 0.1 to 1%, preferably from about 0.2 to 0.5%, by weight based on the silver solution or the halide solution used in preparing the photosensitive silver salt.
- 3-Mercapto-S-methyl-4-phenyll ,2,4-triazoles include not only 3-mercapto-S-methyl-4-phenyl-1,2,4- triazole but also the derivatives thereof, as well as their analogous compounds having substantially the same effect.
- Suitable such derivatives and analogous compounds are 3-mercapto-4-phenyl-l ,2,4-triazole, 3- mercapto-4,5-dimethyl-l ,2,4-tria2ole, 3 ',5- dimercapto-3,5 '-diphenyldihydrol ,2-triazolotriazole, and 3 ',5 '-dimercapto-3 ,5 '-diethyldihydrol ,2- triazolotriazole.
- 3-Mercapto-5-methyl-4-phenyll ,2,4- triazole is especially preferred.
- This additive may be added into the halide solution used in the photosensitive silver salt formation at a level of about 0.05 to 1.0 g., preferable about 0.1 to 0.5 g, per liter of the halide solution and ultimately adsorbed onto the photosensitive silver salt formed in the micropores of the oxide film formed by anodic oxidation.
- it may be brought into substantial contact, after formation of the photosensitive silver salt in the micropores, with the oxide film formed by anodic oxidation as an aqueous solution containing, per liter of solution, the same amounts of the additive described above, and thereby adsorbed onto the already formed photosensitive silver salt.
- the photosensitive aluminum plate according to the present invention shows high sensitivity and reduced fog and is also excellent in shelf life.
- EXAMPLE 1 An electrolytic solution containing 5% of oxalic acid and 3% of potassium oxalate was subjected to electrolysis by impressing a direct current of 2A/dm for 30 minutes on a corrosion resistant aluminum alloy plate containing 0.15% of copper as the anode, while keeping the temperature of the solution at 60 C.
- the resulting support was rinsed and dried and subsequently a silver nitrate solution of the following composition was applied thereto and dried.
- the resulting photosensitive aluminum plate was found to be intact after storage for l to 2 years, without formation of any fog and deterioration in any other photographic properties.
- a photosensitive aluminum plate comprising an aluminum plate containing a silver halide in the micropores of an aluminum oxide film formed by anodic oxidation on the surface of said plate, the improvement which comprises further incorporating at least one of 3-mercapto-4-phenyll ,2,4-triazole, 3-mercapto-5- methyl-4-phenyl-1,2,4-triazole, 3-mercapto-4,5- dimethyl- 1 ,2,4-triazole, 3,5-dimercapto-3 ,5 diethyldihydro- 1 ,2-triazolotriazole, 3 ',5-dimercapto- 3,5-diphenyldihydro-l,2-triazolotriazole into said micropores.
- hydrophilic colloid is selected from the group consisting of gelatin, polyvinyl alcohol methyl cellulose, gum arabic and agar-agar.
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Printing Plates And Materials Therefor (AREA)
- Anti-Oxidant Or Stabilizer Compositions (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP46010820A JPS4946937B1 (enrdf_load_stackoverflow) | 1971-03-02 | 1971-03-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3776734A true US3776734A (en) | 1973-12-04 |
Family
ID=11760977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US00230449A Expired - Lifetime US3776734A (en) | 1971-03-02 | 1972-02-29 | Photosensitive aluminum plate of improved storage stability |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3776734A (enrdf_load_stackoverflow) |
| JP (1) | JPS4946937B1 (enrdf_load_stackoverflow) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4092169A (en) * | 1971-03-01 | 1978-05-30 | Fuji Photo Film Co., Ltd. | Anodized aluminum photographic plates with silver bromide in pores of oxide layer, and process of manufacture thereof |
| WO1980001614A1 (en) * | 1979-02-02 | 1980-08-07 | Eastman Kodak Co | Imaging elements containing microvessels and processes for forming images therewith |
| US4242438A (en) * | 1974-09-06 | 1980-12-30 | Fuji Photo Film Co., Ltd. | Photomask material |
| US4375507A (en) * | 1980-09-08 | 1983-03-01 | Eastman Kodak Company | Imaging with nonplanar support multicolor filter elements |
| US4387146A (en) * | 1980-09-08 | 1983-06-07 | Eastman Kodak Company | Multicolor filters with nonplanar support elements |
| US4387154A (en) * | 1980-09-08 | 1983-06-07 | Eastman Kodak Company | Receivers with nonplanar support elements |
-
1971
- 1971-03-02 JP JP46010820A patent/JPS4946937B1/ja active Pending
-
1972
- 1972-02-29 US US00230449A patent/US3776734A/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4092169A (en) * | 1971-03-01 | 1978-05-30 | Fuji Photo Film Co., Ltd. | Anodized aluminum photographic plates with silver bromide in pores of oxide layer, and process of manufacture thereof |
| US4242438A (en) * | 1974-09-06 | 1980-12-30 | Fuji Photo Film Co., Ltd. | Photomask material |
| WO1980001614A1 (en) * | 1979-02-02 | 1980-08-07 | Eastman Kodak Co | Imaging elements containing microvessels and processes for forming images therewith |
| US4362806A (en) * | 1979-02-02 | 1982-12-07 | Eastman Kodak Company | Imaging with nonplanar support elements |
| US4375507A (en) * | 1980-09-08 | 1983-03-01 | Eastman Kodak Company | Imaging with nonplanar support multicolor filter elements |
| US4387146A (en) * | 1980-09-08 | 1983-06-07 | Eastman Kodak Company | Multicolor filters with nonplanar support elements |
| US4387154A (en) * | 1980-09-08 | 1983-06-07 | Eastman Kodak Company | Receivers with nonplanar support elements |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4946937B1 (enrdf_load_stackoverflow) | 1974-12-12 |
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