Patent US4230795A successfully refreshed from Google Patents.
US4230795A
Expired / Lapsed
US
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Multipart photosensitive element with both fixed contrast and variable contrast part records
Assignee: Individual
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Filing: 1979-04-26
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Granted: 1980-10-28
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Expires: 1999-04-26
Abstract
Abstract A multipart photosensitive element having a predetermined saturation density including at least two partial record portions for forming a full record, each partial record portion controlling a preselected density range of the full record; all of the partial record portions combining to produce the predetermined saturation density of the full record; at least one of the partial record portions including a fixed contrast emulsion and at least one of the partial record portions including a variable contrast emulsion for varying the contrast of that partial record portion over its preselected density range, each of the variable contrast emulsions being photoresponsive in a different spectral region from the other variable contrast emulsions in the other partial record portions for independently selectively varying the contrast in each of the partial record portions including a variable contrast emulsion.
Inventors
- 👤 Donald Krause
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:35
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/46
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
144 words
A multipart photosensitive element comprising: a support, a plurality of partial record portions carried on said support; all of said partial record portions together forming a full record; each of said partial record portions having a preselected density range of said full record and all of said partial record portion densities combined forming the total density range of said full record; at least one of said partial record portions including a fixed contrast emulsion and at least one of said partial record portions including a variable contrast emulsion for varying the contrast of that partial record portion over its preselected density range; each of said variable contrast emulsions being photoresponsive in a different spectral region from the other variable contrast emulsions in the other partial record portions for independently selectively varying the contrast in each of the partial record portions including variable contrast emulsions.
Claim 2
Dependent Claim
144 words
A multipart photosensitive element comprising: a support, a plurality of partial record portions carried on said support; all of said partial record portions together forming a full record; each of said partial record portions having a preselected density range of said full record and all of said partial record portion densities combined forming the total density range of said full record; at least one of said partial record portions including a fixed contrast emulsion and at least one of said partial record portions including a variable contrast emulsion for varying the contrast of that partial record portion over its preselected density range; each of said variable contrast emulsions being photoresponsive in a different spectral region from the other variable contrast emulsions in the other partial record portions for independently selectively varying the contrast in each of the partial record portions including variable contrast emulsions.
Claim 3
Dependent Claim
17 words
The multipart photosensitive element of claim 1 in which said emulsions are each in a separate layer.
Claim 4
Dependent Claim
21 words
The multipart photosensitive element of claim 1 in which more than one of said emulsions are formed in a single layer.
Claim 5
Dependent Claim
14 words
The multipart photosensitive element of claim 1 in which said emulsions have complementary speeds.
Claim 6
Dependent Claim
14 words
The multipart photosensitive element of claim 1 in which said emulsions have non-complementary speeds.
Claim 7
Dependent Claim
64 words
The multipart photosensitive element of claim 2 in which the spectral regions of the sensitivity of a first of said emulsions overlaps with a second and said element further includes filter means between said emulsions for attenuating radiation in a portion of the spectral range of said first emulsion to which said second emulsion is also sensitive before that radiation reaches said second emulsion.
Claim 8
Dependent Claim
28 words
The multipart photosensitive element of claim 1 in which said element includes a number of different color full records each having said at least two partial record portions.
Claim 9
Dependent Claim
60 words
The multipart photosensitive element of claim 7 in which a fixed contrast emulsion in at least one color full record is photoresponsive in a section of the spectral region associated with that color, said section being at least in part outside the corresponding spectral section associated with a variable contrast emulsion contained in said at least one color full record.
Claim 10
Dependent Claim
30 words
The multipart photosensitive element of claim 7 in which each emulsion in each different color full record is photoresponsive in a section of the spectral region associated with that color.
Claim 11
Dependent Claim
73 words
The multipart photosensitive element of claim 7 in which each of said emulsions of a said full record is in a separate layer, and said element further includes filter means disposed between said emulsions in a full color record for attenuating radiation in a portion of the section of the spectral range of a first of said emulsions to which a subsequent emulsion is also sensitive before that radiation reaches that subsequent emulsion.
Claim 12
Dependent Claim
129 words
A multipart photosensitive element comprising: a support; first and second partial record portions carried on said support and together forming a full record; each of said partial record portions having a preselected density range of said full record and all of said partial record portion densities combined forming the total density range of said full record; at least one of said partial record portions including a variable contrast emulsion for varying the contrast of that partial record portion over its preselected density range; and at least one of said partial record portions including a fixed contrast emulsion; said variable contrast partial record portion emulsion including silver bromide and 5-(2-ethyl-1(2)-benzothiazolylidene)-3-n-heptyl-rhodanine as a sensitizer; and said fixed contrast partial record portion emulsion including silver bromide and 5-[4-(2-ethyl-1(2)-benzothiazolylidene) butenylidene]-3-n-heptylrhodanine as a sensitizer.
Claim 13
Dependent Claim
129 words
A multipart photosensitive element comprising: a support; first and second partial record portions carried on said support and together forming a full record; each of said partial record portions having a preselected density range of said full record and all of said partial record portion densities combined forming the total density range of said full record; at least one of said partial record portions including a variable contrast emulsion for varying the contrast of that partial record portion over its preselected density range; and at least one of said partial record portions including a fixed contrast emulsion; said variable contrast partial record portion emulsion including silver bromide and 5-(2-ethyl-1(2)-benzothiazolylidene)-3-n-heptyl-rhodanine as a sensitizer; and said fixed contrast partial record portion emulsion including silver bromide and 5-[4-(2-ethyl-1(2)-benzothiazolylidene) butenylidene]-3-n-heptylrhodanine as a sensitizer.
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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) | 1983-10-28 | 1984-04-28 | 1984-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-28 | 1988-04-28 | 1988-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-28 | 1992-04-28 | 1992-10-28 | $7700.00 | Window Closed / Lapsed |