US4366235A
Expired / Lapsed
US
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Photosensitive element and method of preparing same
Assignee: Polaroid Corp
•
Filing: 1981-02-17
•
Granted: 1982-12-28
•
Expires: 2001-02-17
Abstract
Abstract A photosensitive element comprising a support carrying photosensitive silver halide grains in a substantially predetermined spaced array and methods for forming such photosensitive elements.
Inventors
- 👤 Edwin H. Land
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:33
CPC Classifications
G; G03; G03F; G03F7/00; G03C; G03C1/00; G03C1/494; G03C1/496; G03C1/74; G03C1/76; G03C1/765; Y; Y10; Y10S; Y10S430/00; Y10S430/133
Claims Analysis
Total Claims: 108
Claim 1
Independent Claim
35 words
A photosensitive element comprising a support carrying single effective photosensitive silver halide grains in a substantially predetermined, regular, geometric spaced array wherein said single effective grains are substantially free of physical contact with one another.
Claim 2
Dependent Claim
35 words
A photosensitive element comprising a support carrying single effective photosensitive silver halide grains in a substantially predetermined, regular, geometric spaced array wherein said single effective grains are substantially free of physical contact with one another.
Claim 3
Dependent Claim
13 words
The element of claim 1 wherein said grains are substantially uniform in size.
Claim 4
Dependent Claim
18 words
The element of claim 1 wherein said grains cover at least 25% of the area of said support.
Claim 5
Dependent Claim
18 words
The element of claim 3 wherein said grains cover at least 50% of the area of said support.
Claim 6
Dependent Claim
19 words
The element of claim 1 wherein the grain diameter is equal to or less than the unit spacing distance.
Claim 7
Dependent Claim
19 words
The element of claims 1 or 5 wherein said grains are about 0.1 to 3 μm in mean diameter.
Claim 8
Dependent Claim
20 words
The element of claims 1 or 5 wherein said grains are about 0.5 to 2 μm apart, center to center.
Claim 9
Dependent Claim
13 words
The element of claim 1 wherein said silver halide grains comprise silver bromide.
Claim 10
Dependent Claim
13 words
The element of claim 1 wherein said silver halide grains comprise silver chloride.
Claim 11
Dependent Claim
13 words
The element of claim 1 wherein said silver halide grains comprise silver iodobomide.
Claim 12
Dependent Claim
13 words
The element of claim 1 wherein said silver halide grains comprise silver iodobromochloride.
Claim 13
Dependent Claim
12 words
The element of claim 1 wherein silver halide grains comprise silver iodochloride.
Claim 14
Dependent Claim
15 words
The element of claim 1 wherein said grains are disposed in a water-permeable polymeric layer.
Claim 15
Dependent Claim
15 words
The element of claim 1 wherein said grains are disposed in an alkali-permeable polymeric layer.
Claim 16
Dependent Claim
11 words
The element of claim 13 where said polymeric layer is gelatin.
Claim 17
Dependent Claim
13 words
The element of claim 1 wherein said silver halide grains are spectrally sensitized.
Claim 18
Dependent Claim
13 words
The element of claim 1 wherein said silver halide grains are chemically sensitized.
Claim 19
Dependent Claim
15 words
The element of claim 1 wherein said silver halide grains are spectrally and chemically sensitized.
Claim 20
Independent Claim
56 words
A method for forming a photosensitive element which comprises providing single effective silver halide grains on a substantially predetermined, regular, geometric spaced array of sites carried by a support; each of said sites adapted to receive a single effective silver halide grain whereby said single effective grains are substantially free of physical contact with one another.
Claim 21
Independent Claim
56 words
A method for forming a photosensitive element which comprises providing single effective silver halide grains on a substantially predetermined, regular, geometric spaced array of sites carried by a support; each of said sites adapted to receive a single effective silver halide grain whereby said single effective grains are substantially free of physical contact with one another.
Claim 22
Dependent Claim
16 words
The method of claim 19 wherein said predetermined spaced array of sites comprises an embossed pattern.
Claim 23
Independent Claim
36 words
The method of claims 19 or 20 wherein said silver halide grains are provided by applying to said sites a solution of a water-soluble complex of silver ion and then precipitating silver halide grains by decomplexation.
Claim 24
Dependent Claim
15 words
The method of claim 21 wherein said complex is silver ion complexed with excess halide.
Claim 25
Dependent Claim
14 words
The method of claim 21 wherein said complex is silver ion complexed with thiocyanate.
Claim 26
Dependent Claim
16 words
The method of claim 21 wherein said complex is silver ion complexed with halide and thiocyanate.
Claim 27
Dependent Claim
16 words
The method of claim 21 wherein said solution of water-soluble complex contains a polymeric binder material.
Claim 28
Dependent Claim
35 words
The method of claim 19 wherein said silver halide grains are provided by evaporating silver onto said sites at an angle to the plane of said support and then coverting said silver to silver halide.
Claim 29
Dependent Claim
20 words
The method of claim 26 wherein said silver is converted to silver halide by contacting said silver with a halogen.
Claim 30
Dependent Claim
11 words
The method of claim 27 wherein said halogen is bromine vapor.
Claim 31
Dependent Claim
25 words
The method of claim 28 wherein the thus-formed grains are further grown by contacting said grains with a solution of a water-soluble silver ion complex.
Claim 32
Dependent Claim
39 words
The method of claim 26 which includes the step of applying to said sites having silver halide grains thereon a solution of a water-soluble complex of silver ion and growing said grains by precipitating additional silver halide by decomplexation.
Claim 33
Independent Claim
17 words
The method of claims 29 or 30 wherein said complex is silver ion complexed with excess halide.
Claim 34
Independent Claim
16 words
The method of claims 29 or 30 wherein said complex is silver ion complexed with thiocyanate.
Claim 35
Independent Claim
18 words
The method of claims 29 or 30 wherein said complex is silver ion complexed with halide and thiocyanate.
Claim 36
Dependent Claim
13 words
The method of claim 19 wherein said sites include a permeable polymeric material.
Claim 37
Dependent Claim
12 words
The method of claim 34 wherein said permeable polymeric material is gelatin.
Claim 38
Dependent Claim
15 words
The method of claim 34 wherein said permeable polymeric material is 2-acrylamido-2-methylpropane sulfonic acid/acrylamide copolymer.
Claim 39
Dependent Claim
16 words
The method of claim 34 wherein said permeable polymeric material is diacetone acrylamide/2-acrylamido-2-methylpropane sulfonic acid copolymer.
Claim 40
Dependent Claim
28 words
The method of claim 19 wherein said silver halide grains are provided by the vacuum depostion of silver halide at an angle to the plane of said support.
Claim 41
Dependent Claim
29 words
The method of claim 19 wherein said predetermined spaced array of sites comprises nuclei adapted to crystalize silver halide thereon from a solution of a water-soluble complex of silver.
Claim 42
Dependent Claim
15 words
The method of claim 39 wherein said complex is silver ion complexed with excess halide.
Claim 43
Dependent Claim
14 words
The method of claim 39 wherein said complex is silver ion complexed with thiocyanate.
Claim 44
Dependent Claim
16 words
The method of claim 39 wherein said complex is silver ion complexed with halide and thiocyanate.
Claim 45
Dependent Claim
12 words
The method of claim 39 wherein said nuclei comprise a noble metal.
Claim 46
Dependent Claim
11 words
The method of claim 43 wherein said noble metal is silver.
Claim 47
Dependent Claim
21 words
The method of claim 19 wherein said sites are formed by a patterned exposure and development of a photosensitive silver salt.
Claim 48
Dependent Claim
13 words
The method of claim 45 wherein said silver salt is a Lippmann emulsion.
Claim 49
Dependent Claim
12 words
The method of claim 45 wherein said silver salt is silver nitrate.
Claim 50
Dependent Claim
19 words
The method of claim 19 wherein said sites are formed by the patterned exposure of a photosensitive ferric salt.
Claim 51
Dependent Claim
24 words
The method of claim 48 wherein Fe +2 produced by said exposure of a photosensitive ferric salt reduces a salt of a noble metal.
Claim 52
Dependent Claim
16 words
The method of claim 49 wherein said salt of a noble metal is a silver salt.
Claim 53
Independent Claim
55 words
A method for forming a photosensitive element comprising forming on a support a predetermined, regular, geometric spaced array of sites for silver halide grains and providing a single effective photosensitive silver halide grain substantially only at each of said sites and whereby said single effective grains are substantially free of physical contact with one another.
Claim 54
Independent Claim
55 words
A method for forming a photosensitive element comprising forming on a support a predetermined, regular, geometric spaced array of sites for silver halide grains and providing a single effective photosensitive silver halide grain substantially only at each of said sites and whereby said single effective grains are substantially free of physical contact with one another.
Claim 55
Dependent Claim
19 words
The method of claim 51 wherein said predetermined spaced array of sites comprises an embossed pattern in a support.
Claim 56
Dependent Claim
33 words
The method of claim 51 wherein said silver halide grains are deposited by applying to said sites a solution of water-soluble complex of silver ion and then precipitating silver halide grains by decomplexation.
Claim 57
Dependent Claim
16 words
The method of claim 53 wherein said solution of water-soluble complex contains a polymeric binder material.
Claim 58
Dependent Claim
35 words
The method of claim 51 wherein said silver halide grains are provided by evaporating silver onto said sites at an angle to the plane of said support and then converting said silver to silver halide.
Claim 59
Dependent Claim
20 words
The method of claim 55 wherein said silver is converted to silver halide by contacting said silver with a halogen.
Claim 60
Dependent Claim
11 words
The method of claim 56 wherein said halogen is bromine vapor.
Claim 61
Dependent Claim
26 words
The method of claim 57 wherein the thus-formed grains are further grown by contacting said grains with a solution of a water-soluble complex of silver ion.
Claim 62
Dependent Claim
38 words
The method of claim 55 which includes the step of applying to said sites having silver halide grains thereon a solution of water-soluble complex of silver ion and growing said grains by precipitating additional silver halide by decomplexation.
Claim 63
Dependent Claim
29 words
The method of claim 51 wherein said predetermined spaced array of sites comprises nuclei adapted to crystalize silver halide thereon from a solution of water-soluble complex of silver ion.
Claim 64
Dependent Claim
21 words
The method of claim 51 wherein said sites are formed by a patterned exposure and development of a photosensitive silver salt.
Claim 65
Dependent Claim
13 words
The method of claim 61 wherein said silver salt is a Lippmann emulsion.
Claim 66
Dependent Claim
12 words
The method of claim 61 wherein said silver salt is silver nitrate.
Claim 67
Dependent Claim
19 words
The method of claim 51 wherein said sites are formed by the patterned exposure of a photosensitive ferric salt.
Claim 68
Independent Claim
86 words
A method for forming a photosensitive silver halide element which comprises the following steps, in sequence: (a) exposing a photosensitive material to radiation actinic to said photosensitive material to provide a predetermined, regular, geometric exposure pattern in said photosensitive material; (b) developing said exposed photosensitive material to provide sites for the generation of silver halide grains; said sites corresponding to said predetermined pattern and said sites being spaced apart from each other; (c) forming a single effective photosensitive silver halide grain at each of said sites.
Claim 69
Independent Claim
86 words
A method for forming a photosensitive silver halide element which comprises the following steps, in sequence: (a) exposing a photosensitive material to radiation actinic to said photosensitive material to provide a predetermined, regular, geometric exposure pattern in said photosensitive material; (b) developing said exposed photosensitive material to provide sites for the generation of silver halide grains; said sites corresponding to said predetermined pattern and said sites being spaced apart from each other; (c) forming a single effective photosensitive silver halide grain at each of said sites.
Claim 70
Independent Claim
75 words
A method for forming a photosensitive silver halide element which comprises the following steps, in sequence: (a) exposing a photoresist to radiation actinic to said photoresist to provide a predetermined pattern in said photoresist; (b) developing the exposed photoresist to provide a relief pattern therein, said relief pattern comprising an ordered spaced array of peaks and valleys; and (c) forming single effective photosensitive silver halide grains in a spaced array corresponding to said relief pattern.
Claim 71
Independent Claim
75 words
A method for forming a photosensitive silver halide element which comprises the following steps, in sequence: (a) exposing a photoresist to radiation actinic to said photoresist to provide a predetermined pattern in said photoresist; (b) developing the exposed photoresist to provide a relief pattern therein, said relief pattern comprising an ordered spaced array of peaks and valleys; and (c) forming single effective photosensitive silver halide grains in a spaced array corresponding to said relief pattern.
Claim 72
Dependent Claim
14 words
The method of claim 66 wherein said photoresist is exposed by an interference pattern.
Claim 73
Dependent Claim
25 words
The method of claim 67 wherein said photoresist is exposed with a first and a second interference pattern at a 90° angle to one another.
Claim 74
Dependent Claim
15 words
The method of claim 68 wherein said first and second interference pattern exposures are sequential.
Claim 75
Dependent Claim
15 words
The method of claim 68 wherein said first and second interference pattern exposures are simultaneous.
Claim 76
Dependent Claim
11 words
The method of claim 66 wherein said radiation is coherent radiation.
Claim 77
Dependent Claim
13 words
The method of claim 71 wherein said coherent radiation is a laser beam.
Claim 78
Dependent Claim
16 words
The method of claim 66 wherein said relief pattern is formed by photosolubilization of said photoresist.
Claim 79
Dependent Claim
13 words
The method of claim 66 wherein said relief pattern is formed by photopolymerization.
Claim 80
Dependent Claim
13 words
The method of claim 66 wherein said peaks constitute a substantially planar configuration.
Claim 81
Dependent Claim
10 words
The method of claim 66 wherein said peaks are pointed.
Claim 82
Dependent Claim
17 words
The method of claim 66 wherein said silver halide grains are formed on top of said peaks.
Claim 83
Dependent Claim
15 words
The method of claim 66 wherein said silver halide grains are formed in said valleys.
Claim 84
Dependent Claim
18 words
The method of claim 66 wherein said silver halide grains are formed on the sides of said peaks.
Claim 85
Dependent Claim
31 words
The method of claim 66 wherein step (b) includes the step of electroforming said relief pattern to form an embossing master and replicating said relief pattern in an embossable polymeric layer.
Claim 86
Dependent Claim
35 words
The method of claim 66 which includes the steps of vacuum depositing silver at an acute angle to the plane of said relief pattern and forming silver halide at the sites of said deposited silver.
Claim 87
Dependent Claim
18 words
The method of claim 81 wherein said deposited silver is converted to silver halide by halogenating said silver.
Claim 88
Dependent Claim
48 words
The method of claim 81 which includes the step of applying a permeable polymeric layer over said relief pattern having silver deposited therein, applying a solution of a water-soluble complex of silver and decomplexing said complex whereby silver halide is deposited at the sites of said evaporated silver.
Claim 89
Dependent Claim
14 words
The method of claim 83 wherein said complex is silver complexed with excess halide.
Claim 90
Dependent Claim
13 words
The method of claim 83 wherein said complex is silver complexed with thiocyanate.
Claim 91
Dependent Claim
15 words
The method of claim 83 wherein said complex is silver complexed with halide and thiocyanate.
Claim 92
Dependent Claim
12 words
The method of claim 83 wherein said permeable polymeric layer comprises gelatin.
Claim 93
Dependent Claim
16 words
The method of claim 83 wherein said permeable polymeric layer also includes a water-soluble halide salt.
Claim 94
Dependent Claim
16 words
The method of claim 66 which includes the step of chemically sensitizing said silver halide grains.
Claim 95
Dependent Claim
16 words
The method of claim 66 which includes the step of spectrally sensitizing said silver halide grains.
Claim 96
Independent Claim
74 words
A method for forming a photosensitive silver halide element which comprises the following steps, in sequence: (a) exposing a substantially grainless photosensitive material to radiation actinic to said photosensitive material to provide a regular, geometric spaced pattern of exposure sites in said photosensitive material; (b) developing said pattern of exposure sites to provide nuclei at said sites in an array corresponding to said pattern; and (c) forming photosensitive silver halide grains on said nuclei.
Claim 97
Independent Claim
74 words
A method for forming a photosensitive silver halide element which comprises the following steps, in sequence: (a) exposing a substantially grainless photosensitive material to radiation actinic to said photosensitive material to provide a regular, geometric spaced pattern of exposure sites in said photosensitive material; (b) developing said pattern of exposure sites to provide nuclei at said sites in an array corresponding to said pattern; and (c) forming photosensitive silver halide grains on said nuclei.
Claim 98
Dependent Claim
15 words
The method of claim 91 wherein said photosensitive material is exposed by an interference pattern.
Claim 99
Dependent Claim
27 words
The method of claim 92 wherein said photosensitive material is exposed with a first and a second interference pattern at about a 90° angle to one another.
Claim 100
Dependent Claim
15 words
The method of claim 93 wherein said first and second interference pattern exposures are sequential.
Claim 101
Dependent Claim
16 words
The method of claim 93 wherein said first and second interference pattern exposures are substantially simultaneous.
Claim 102
Dependent Claim
11 words
The method of claim 91 wherein said radiation is coherent radiation.
Claim 103
Dependent Claim
12 words
The method of claim 96 wherein said radiation is a laser beam.
Claim 104
Dependent Claim
12 words
The method of claim 91 wherein said photosensitive material is silver halide.
Claim 105
Dependent Claim
12 words
The method of claim 91 wherein said photosensitive material is dichromated gelatin.
Claim 106
Dependent Claim
12 words
The method of claim 91 wherein said photosensitive material comprises ferric salts.
Claim 107
Dependent Claim
15 words
The method of claim 91 wherein said photosensitive material also includes a soluble silver salt.
Claim 108
Dependent Claim
18 words
The method of claim 91 wherein said photosensitive material also includes a soluble salt of platinum or palladium.
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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) | 1985-12-27 | 1986-06-28 | 1986-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-27 | 1990-06-28 | 1990-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-27 | 1994-06-28 | 1994-12-28 | $7700.00 | Window Closed / Lapsed |