GB2110831B - Direct positive photographic elements - Google Patents

Direct positive photographic elements

Info

Publication number
GB2110831B
GB2110831B GB08232305A GB8232305A GB2110831B GB 2110831 B GB2110831 B GB 2110831B GB 08232305 A GB08232305 A GB 08232305A GB 8232305 A GB8232305 A GB 8232305A GB 2110831 B GB2110831 B GB 2110831B
Authority
GB
United Kingdom
Prior art keywords
photographic elements
direct positive
positive photographic
direct
elements
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
Application number
GB08232305A
Other versions
GB2110831A (en
Inventor
Richard Lee Daubendiek
Francis John Evans
Ronald George Raleigh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of GB2110831A publication Critical patent/GB2110831A/en
Application granted granted Critical
Publication of GB2110831B publication Critical patent/GB2110831B/en
Expired legal-status Critical Current

Links

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
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/485—Direct positive emulsions
    • G03C1/48538—Direct positive emulsions non-prefogged, i.e. fogged after imagewise exposure
    • G03C1/48569—Direct positive emulsions non-prefogged, i.e. fogged after imagewise exposure characterised by the emulsion type/grain forms, e.g. tabular grain emulsions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
GB08232305A 1981-11-12 1982-11-12 Direct positive photographic elements Expired GB2110831B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US32089181A 1981-11-12 1981-11-12
US43191282A 1982-09-30 1982-09-30

Publications (2)

Publication Number Publication Date
GB2110831A GB2110831A (en) 1983-06-22
GB2110831B true GB2110831B (en) 1985-08-21

Family

ID=26982707

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08232305A Expired GB2110831B (en) 1981-11-12 1982-11-12 Direct positive photographic elements

Country Status (11)

Country Link
AU (1) AU560223B2 (en)
BR (1) BR8206564A (en)
CA (1) CA1175692A (en)
CH (1) CH653150A5 (en)
DE (1) DE3241643C2 (en)
FR (1) FR2516262B1 (en)
GB (1) GB2110831B (en)
IE (1) IE54328B1 (en)
IT (1) IT1156334B (en)
NL (1) NL190672C (en)
SE (1) SE451040B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4444874A (en) * 1982-09-15 1984-04-24 Eastman Kodak Company Photographic elements containing direct-positive emulsions and processes for their use
JPS60173541A (en) * 1984-02-20 1985-09-06 Fuji Photo Film Co Ltd Photo sensitive material comprising silver halide for direct positive
US4520098A (en) * 1984-05-31 1985-05-28 Eastman Kodak Company Photographic element exhibiting reduced sensitizing dye stain
CA1259845A (en) * 1985-02-04 1989-09-26 Allan F. Sowinski Reversal photographic elements containing tabular grain emulsions
JPH0610756B2 (en) * 1985-07-17 1994-02-09 富士写真フイルム株式会社 Silver halide color-reversal photographic material
JPH0619570B2 (en) * 1986-02-07 1994-03-16 富士写真フイルム株式会社 Photosensitive material
EP0244356A3 (en) * 1986-04-25 1988-04-27 Ilford Ag Method for preparing photographic direct-positive emulsions

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1507989A (en) * 1974-12-19 1978-04-19 Ciba Geigy Ag Photographic emulsions
GB1520976A (en) * 1976-06-10 1978-08-09 Ciba Geigy Ag Photographic emulsions
GB1570581A (en) * 1978-05-25 1980-07-02 Ciba Geigy Ag Preparation of silver halide emulsions
DE2905655C2 (en) * 1977-06-08 1995-03-30 Ilford Ltd A process for the preparation of photographic silver halide emulsions containing twin-type silver halide crystals

Also Published As

Publication number Publication date
IT8224240A0 (en) 1982-11-12
SE451040B (en) 1987-08-24
NL8204398A (en) 1983-06-01
SE8206450L (en) 1983-05-13
DE3241643A1 (en) 1983-05-19
DE3241643C2 (en) 1997-04-17
IT1156334B (en) 1987-02-04
NL190672C (en) 1994-06-16
BR8206564A (en) 1983-09-27
GB2110831A (en) 1983-06-22
FR2516262B1 (en) 1987-02-20
IE54328B1 (en) 1989-08-30
CH653150A5 (en) 1985-12-13
AU560223B2 (en) 1987-04-02
FR2516262A1 (en) 1983-05-13
CA1175692A (en) 1984-10-09
SE8206450D0 (en) 1982-11-12
NL190672B (en) 1994-01-17
AU9038082A (en) 1983-05-19
IE822702L (en) 1983-05-12

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19961112