US4343873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic light-sensitive silver halide elements
Assignee: Fujifilm Holdings Corp
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Filing: 1980-10-15
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Granted: 1982-08-10
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Expires: 2000-10-15
Abstract
Abstract A photographic light-sensitive silver halide element is described comprising a support, at least one light-sensitive silver halide emulsion layer and a light-scattering layer. This element is used for forming a dot image by a photographic exposure using laser through a contact screen. The light-scattering layer is provided in such a manner that the silver halide emulsion layer is exposed to laser through the light-scattering layer.
Inventors
- 👤 Senzo Sasaoka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:35
CPC Classifications
G; G03; G03F; G03F1/00; G03F1/54; G03F5/00; Y; Y10; Y10S; Y10S430/00; Y10S430/146; Y10S430/15; Y10S430/151
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
113 words
A laser-sensitive photographic light-sensitive silver halide element for use in the formation of a dot image by a photographic exposure using a laser light, comprising a support, at least one layer of a light-sensitive silver halide emulsion providing a gamma value of at least 10, and a light-scattering layer provided in such a manner that the light-sensitive silver halide emulsion layer is exposed to the laser light through the light-scattering layer, wherein the light-scattering layer contains substantially light-insensitive light-scattering particles capable of being dissolved and removed in a development step and the diameter of light-scattering particles is from 50% to 150% of the wavelength of the laser light for use for the exposure.
Claim 2
Dependent Claim
113 words
A laser-sensitive photographic light-sensitive silver halide element for use in the formation of a dot image by a photographic exposure using a laser light, comprising a support, at least one layer of a light-sensitive silver halide emulsion providing a gamma value of at least 10, and a light-scattering layer provided in such a manner that the light-sensitive silver halide emulsion layer is exposed to the laser light through the light-scattering layer, wherein the light-scattering layer contains substantially light-insensitive light-scattering particles capable of being dissolved and removed in a development step and the diameter of light-scattering particles is from 50% to 150% of the wavelength of the laser light for use for the exposure.
Claim 3
Dependent Claim
20 words
A photographic light-sensitive silver halide element as in claim 1 wherein the light-scattering particles are substantially light-insensitive silver halide particles.
Claim 4
Dependent Claim
23 words
A photographic light-sensitive silver halide element as in claim 1 wherein the light-sensitive silver halide emulsion is a lith type silver halide emulsion.
Claim 5
Dependent Claim
27 words
A photographic light-sensitive silver halide element as in claim 2 wherein the concentration of the light-insensitive silver halide particles is from 0.3 to 2.0 g/m 2 .
Claim 6
Dependent Claim
30 words
A photographic light-sensitive silver halide element as in claim 2 wherein the light-scattering layer contains a matting agent having particles with diameters within the range of from 2 to 5μ.
Claim 7
Dependent Claim
17 words
A photographic light-sensitive silver halide element as in claim 5 wherein the matting agent is polymethyl methacrylate.
Claim 8
Dependent Claim
21 words
A photographic light-sensitive silver halide element as in claim 1 wherein a surface protective layer is provided on the light-scattering layer.
Claim 9
Dependent Claim
32 words
A photographic light-sensitive silver halide element as in claim 7 wherein the surface protective layer contains a matting agent of polymethyl methacrylate having an average particle diameter of from 2 to 5μ.
Claim 10
Dependent Claim
32 words
A photographic light-sensitive silver halide element as in claim 1 or 2, wherein the element comprises, in sequence, the support, at least one light-sensitive silver halide emulsion layer, and the light-scattering layer.
Claim 11
Dependent Claim
32 words
A photographic light-sensitive silver halide element as in claim 1 or 2, wherein the element comprises, in sequence, the support, the light-scattering layer, and at least one light-sensitive silver halide emulsion layer.
Claim 12
Dependent Claim
32 words
A photographic light-sensitive silver halide element as in claim 1 or 2, wherein the element comprises, in sequence, the light-scattering layer, the support, and at least one light-sensitive silver halide emulsion layer.
Claim 13
Dependent Claim
29 words
A photographic light-sensitive silver halide element as in claim 1, wherein the diameter of the light-scattering particles is from 50% to 100% of the wavelength of the laser light.
Claim 14
Dependent Claim
29 words
A photographic light-sensitive silver halide element as in claim 1, wherein the diameter of the light-scattering particles is from 80% to 120% of the wavelength of the laser light.
Claim 15
Dependent Claim
35 words
A photographic light-sensitive silver halide element as in claim 1, wherein the laser light is that of a neon-helium laser and the light-scattering particles have diameters within the range of from about 0.32μ to 1.90μ.
Claim 16
Dependent Claim
34 words
A photographic light-sensitive silver halide element as in claim 12, wherein the laser light is that of a neon-helium laser and the light-scattering particles have diameters within the range of from 0.32μ to 0.95μ.
Claim 17
Dependent Claim
34 words
A photographic light-sensitive silver halide element as in claim 13, wherein the laser light is that of a neon-helium laser and the light-scattering particles have diameters within the range of from 0.4μ to 0.7μ.
Claim 18
Dependent Claim
27 words
A photographic light-sensitive silver halide element as in claim 1 or 2, wherein the amount of light-scattering particles used is from 0.2 to 10 g/m 2 .
Claim 19
Independent Claim
123 words
A method for forming a dot image comprising exposing a laser-sensitive photographic light-sensitive silver halide element to a laser light through a contact screen, wherein said photographic light-sensitive silver halide element comprises a support, at least one layer of a light-sensitive silver halide emulsion providing a gamma value of at least 10, and at least one light-scattering layer provided in such a manner that the light-sensitive silver halide emulsion is exposed to the laser light through the light-scattering layer, wherein the light-scattering layer contains substantially light-insensitive light-scattering particles capable of being dissolved and removed in a development step and selected to have a diameter within the range of from 50% to 150% of the wavelength of the laser light used for the exposure.
Claim 20
Independent Claim
123 words
A method for forming a dot image comprising exposing a laser-sensitive photographic light-sensitive silver halide element to a laser light through a contact screen, wherein said photographic light-sensitive silver halide element comprises a support, at least one layer of a light-sensitive silver halide emulsion providing a gamma value of at least 10, and at least one light-scattering layer provided in such a manner that the light-sensitive silver halide emulsion is exposed to the laser light through the light-scattering layer, wherein the light-scattering layer contains substantially light-insensitive light-scattering particles capable of being dissolved and removed in a development step and selected to have a diameter within the range of from 50% to 150% of the wavelength of the laser light used for the exposure.
Claim 21
Dependent Claim
16 words
A method as in claim 18, wherein the light-scattering particles are substantially light-insensitive silver halide particles.
Claim 22
Dependent Claim
25 words
A method as in claim 18, wherein the diameter of the light-scattering particles is from 50% to 150% of the wavelength of the laser light.
Claim 23
Dependent Claim
29 words
A method as in claim 18, wherein the diameter of the light-scattering particles is within the range of from 80% to 120% of the wavelength of the laser light.
Claim 24
Dependent Claim
20 words
A method as in claim 18, 19, 20, or 21, wherein the laser light is produced by a neon-helium laser.
Claim 25
Dependent Claim
21 words
A method as in claim 22, wherein the concentration of the light-scattering particles is from 0.3 to 2.0 g/m 2 .
Claim 26
Dependent Claim
26 words
A method as in claim 23, wherein the light-scattering layer contains a matting agent having particles with diameters in the range of from 2 to 5μ.
Claim 27
Dependent Claim
13 words
A method as in claim 24, wherein the matting agent is polymethyl acrylate.
Claim 28
Dependent Claim
17 words
A method as in claim 25, wherein a surface protective layer is provided on the light-scattering layer.
Claim 29
Dependent Claim
28 words
A method as in claim 26, wherein the surface protective layer contains a matting agent of polymethyl acrylate having an average particle diameter of from 2 to 5μ.
Claim 30
Independent Claim
126 words
A method for producing a photographic image with minimized formation of interference fringes which comprises imagewise exposing a laser-sensitive photographic light-sensitive silver halide element using laser light, wherein said photographic light-sensitive silver halide element comprises a support, at least one layer of a light-sensitive silver halide emulsion providing a gamma value of at least 10, and at least one light-scattering layer provided in such a manner that the light-sensitive silver halide emulsion is exposed to the laser light through the light-scattering layer, wherein the light-scattering layer contains substantially light-insensitive light-scattering particles capable of being dissolved and removed in a development step and selected to have a diameter within the range of from 50% to 150% of the wavelength of the laser light used for the exposure.
Claim 31
Independent Claim
126 words
A method for producing a photographic image with minimized formation of interference fringes which comprises imagewise exposing a laser-sensitive photographic light-sensitive silver halide element using laser light, wherein said photographic light-sensitive silver halide element comprises a support, at least one layer of a light-sensitive silver halide emulsion providing a gamma value of at least 10, and at least one light-scattering layer provided in such a manner that the light-sensitive silver halide emulsion is exposed to the laser light through the light-scattering layer, wherein the light-scattering layer contains substantially light-insensitive light-scattering particles capable of being dissolved and removed in a development step and selected to have a diameter within the range of from 50% to 150% of the wavelength of the laser light used for the exposure.
Claim 32
Dependent Claim
50 words
A photographic light-sensitive silver halide element as in claim 1, wherein said light-scattering particles are selected from the group consisting of silver halide, cadmium sulfate, calcium carbonate, cadmium carbonate, barium oxalate, zinc hydroxide, thallium chloride, a polymethyl methacrylate-acrylic acid copolymer and a free carboxyl or sulfonyl group containing starch derivative.
Claim 33
Independent Claim
133 words
A method for minimizing the occurrence of interference fringe in the formation of a dot image of a screen scanner system which comprises exposing a laser-sensitive photographic light-sensitive silver halide element comprising a support, at least one layer of a light sensitive silver halide emulsion providing a gamma value of at least 10 and a light-scattering layer to a laser light through the light-scattering layer wherein the light-scattering layer is provided in such a manner that the light-sensitive silver halide emulsion layer is exposed to the laser light through the light-scattering layer and contains substantially light-insensitive light-scattering particles capable of being dissolved and removed in a development step and wherein the diameter of the light-scattering particles is from 50 to 150% that of the wavelength of the laser light used for the exposure.
Claim 34
Independent Claim
133 words
A method for minimizing the occurrence of interference fringe in the formation of a dot image of a screen scanner system which comprises exposing a laser-sensitive photographic light-sensitive silver halide element comprising a support, at least one layer of a light sensitive silver halide emulsion providing a gamma value of at least 10 and a light-scattering layer to a laser light through the light-scattering layer wherein the light-scattering layer is provided in such a manner that the light-sensitive silver halide emulsion layer is exposed to the laser light through the light-scattering layer and contains substantially light-insensitive light-scattering particles capable of being dissolved and removed in a development step and wherein the diameter of the light-scattering particles is from 50 to 150% that of the wavelength of the laser light used for the exposure.
Claim 35
Dependent Claim
15 words
The method of claim 30, wherein said development step consists essentially of developing and fixing.
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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) | 1985-08-09 | 1986-02-08 | 1986-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-08-09 | 1990-02-08 | 1990-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-08-09 | 1994-02-08 | 1994-08-10 | $7700.00 | Window Closed / Lapsed |