GB1451618A - Direct positive silver halide materials - Google Patents

Direct positive silver halide materials

Info

Publication number
GB1451618A
GB1451618A GB5632373A GB5632373A GB1451618A GB 1451618 A GB1451618 A GB 1451618A GB 5632373 A GB5632373 A GB 5632373A GB 5632373 A GB5632373 A GB 5632373A GB 1451618 A GB1451618 A GB 1451618A
Authority
GB
United Kingdom
Prior art keywords
silver halide
emulsions
grains
direct positive
positive silver
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
GB5632373A
Other languages
English (en)
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.)
Agfa Gevaert AG
Original Assignee
Agfa Gevaert AG
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 Agfa Gevaert AG filed Critical Agfa Gevaert AG
Publication of GB1451618A publication Critical patent/GB1451618A/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
    • G03C1/48515—Direct positive emulsions prefogged

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)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
GB5632373A 1972-12-23 1973-12-05 Direct positive silver halide materials Expired GB1451618A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2263246A DE2263246A1 (de) 1972-12-23 1972-12-23 Photographisches material zur herstellung direktpositiver photographischer bilder

Publications (1)

Publication Number Publication Date
GB1451618A true GB1451618A (en) 1976-10-06

Family

ID=5865351

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5632373A Expired GB1451618A (en) 1972-12-23 1973-12-05 Direct positive silver halide materials

Country Status (7)

Country Link
US (1) US4287296A (enExample)
JP (1) JPS4991632A (enExample)
BE (1) BE808281A (enExample)
DE (1) DE2263246A1 (enExample)
FR (1) FR2211676B1 (enExample)
GB (1) GB1451618A (enExample)
IT (1) IT1019035B (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4444865A (en) * 1981-11-12 1984-04-24 Eastman Kodak Company Blended grain direct-positive emulsions and photographic elements and processes for their use
USRE32097E (en) * 1981-11-12 1986-03-25 Eastman Kodak Company Blended grain direct-positive emulsions and photographic elements and processes for their use
USRE32149E (en) * 1982-09-15 1986-05-20 Eastman Kodak Company Photographic elements containing direct-positive emulsions and processes for their use
US4444874A (en) * 1982-09-15 1984-04-24 Eastman Kodak Company Photographic elements containing direct-positive emulsions and processes for their use
US10271808B2 (en) 2010-03-31 2019-04-30 Koninklijke Philips N.V. Automatic positioning of absorption means in X-ray image acquisition
FR3141643B1 (fr) 2022-11-09 2024-09-20 Psa Automobiles Sa Vehicule electrique avec groupe motopropulseur dispose a l’avant alimente par des cables haute tension

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE476292A (enExample) * 1946-04-01
US3367778A (en) * 1965-04-15 1968-02-06 Eastman Kodak Co Silver salt direct positive emulsion
US3501305A (en) * 1966-03-11 1970-03-17 Eastman Kodak Co Monodispersed photographic reversal emulsions
US3510348A (en) * 1966-03-11 1970-05-05 Eastman Kodak Co Direct positive recording film
US3320069A (en) * 1966-03-18 1967-05-16 Eastman Kodak Co Sulfur group sensitized emulsions
BE757384A (fr) * 1969-10-13 1971-04-13 Du Pont Emulsions photographiques a positif direct
GB1335851A (en) * 1970-08-14 1973-10-31 Agfa Gevaert Spectral sensitization of direct-positive silver halide emulsions
US3740226A (en) * 1971-06-30 1973-06-19 Eastman Kodak Co Fogged direct-positive silver halide emulsions containing triazolium salts and the use thereof in reversal processes
DE2224837C3 (de) * 1972-05-20 1986-05-07 Agfa-Gevaert Ag, 5090 Leverkusen Direktpositives photographisches Aufzeichnungsmaterial

Also Published As

Publication number Publication date
IT1019035B (it) 1977-11-10
JPS4991632A (enExample) 1974-09-02
BE808281A (nl) 1974-06-06
FR2211676A1 (enExample) 1974-07-19
FR2211676B1 (enExample) 1977-03-04
DE2263246A1 (de) 1974-07-04
US4287296A (en) 1981-09-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee