FR918887A - Method and apparatus for the production of halftone negatives - Google Patents

Method and apparatus for the production of halftone negatives

Info

Publication number
FR918887A
FR918887A FR918887DA FR918887A FR 918887 A FR918887 A FR 918887A FR 918887D A FR918887D A FR 918887DA FR 918887 A FR918887 A FR 918887A
Authority
FR
France
Prior art keywords
production
halftone negatives
negatives
halftone
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
Other languages
French (fr)
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.)
Konica Minolta Graphic Imaging USA Inc
Original Assignee
Konica Minolta Graphic Imaging USA Inc
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 Konica Minolta Graphic Imaging USA Inc filed Critical Konica Minolta Graphic Imaging USA Inc
Application granted granted Critical
Publication of FR918887A publication Critical patent/FR918887A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F5/00—Screening processes; Screens therefor
    • G03F5/02—Screening processes; Screens therefor by projection methods
    • G03F5/06—Screening processes; Screens therefor by projection methods changing the diaphragm effect

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection-Type Copiers In General (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
FR918887D 1944-08-23 1945-08-20 Method and apparatus for the production of halftone negatives Expired FR918887A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US550794A US2533650A (en) 1944-08-23 1944-08-23 Process of making half-tone negatives

Publications (1)

Publication Number Publication Date
FR918887A true FR918887A (en) 1947-02-20

Family

ID=24198594

Family Applications (1)

Application Number Title Priority Date Filing Date
FR918887D Expired FR918887A (en) 1944-08-23 1945-08-20 Method and apparatus for the production of halftone negatives

Country Status (3)

Country Link
US (1) US2533650A (en)
FR (1) FR918887A (en)
GB (1) GB606120A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2767093A (en) * 1950-06-23 1956-10-16 Bilhoefer Frederick Gustave Photo printing process
US2692198A (en) * 1950-08-11 1954-10-19 Maurice D Whitney Methods of producing half-tone printing plates
US2811444A (en) * 1953-01-16 1957-10-29 Francis E Wattier Printing plate construction
US3128180A (en) * 1958-07-02 1964-04-07 Eastman Kodak Co Hardened high-contrast photographic silver chloride emulsions and method of processing

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE312513C (en) *
US532326A (en) * 1895-01-08 Diaphragm for cameras
US802598A (en) * 1905-05-04 1905-10-24 Carl Richter Process for preparing autotype-negatives.
US1167505A (en) * 1911-11-14 1916-01-11 Werner Robert Busch Larsen Method of producing half-tone negatives.
US1289129A (en) * 1917-01-22 1918-12-31 Fletcher Douthitt Method of ascertaining the combination of stops for the production of half-tone dot negatives with a process-camera.
US1832656A (en) * 1922-07-27 1931-11-17 Frank T Powers Photographic camera
US1575408A (en) * 1923-10-04 1926-03-02 Bassani Processes Inc Method of and apparatus for making negatives from which printing plates may be produced
US1732051A (en) * 1927-10-28 1929-10-15 Carl G Johnson High-light stop for cameras
US2100346A (en) * 1933-06-08 1937-11-30 Photo Cylinder Corp Intaglio printing elements and method of producing the same
US2044184A (en) * 1934-05-17 1936-06-16 Frank T Powers Apparatus for making negatives
US2060640A (en) * 1934-12-17 1936-11-10 Detroit Moulding Corp Method of making intaglio printing plates
US2062401A (en) * 1935-03-07 1936-12-01 Disque Half tone screen operating mechanism
US2095909A (en) * 1935-06-17 1937-10-12 Photo Cast Inc Universal screen for preparing half tones
US2115233A (en) * 1935-07-05 1938-04-26 Frank T Powers Process camera
US2123830A (en) * 1935-12-07 1938-07-12 Sterling Engraving Company Means for producing screen negatives
US2126479A (en) * 1936-04-02 1938-08-09 Photostat Corp Photographic apparatus
US2145427A (en) * 1937-02-23 1939-01-31 Nat Office Supply Company Apparatus for producing high light in half tones
US2306936A (en) * 1940-03-26 1942-12-29 Edward Stern & Company Inc Process and apparatus for flashing in half tone

Also Published As

Publication number Publication date
US2533650A (en) 1950-12-12
GB606120A (en) 1948-08-06

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