GB648686A - - Google Patents

Info

Publication number
GB648686A
GB648686A GB2005647A GB2005647A GB648686A GB 648686 A GB648686 A GB 648686A GB 2005647 A GB2005647 A GB 2005647A GB 2005647 A GB2005647 A GB 2005647A GB 648686 A GB648686 A GB 648686A
Authority
GB
United Kingdom
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
GB2005647A
Other languages
English (en)
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 filed Critical
Publication of GB648686A publication Critical patent/GB648686A/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
    • G03F5/12—Screening processes; Screens therefor by projection methods using other screens, e.g. granulated screen

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Printing Methods (AREA)
GB2005647A 1941-10-18 1947-07-25 Expired GB648686A (xx)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US41553041 US2373489A (en) 1941-10-18 1941-10-18 Halftone photoengraving process
US3679448 US2468680A (en) 1941-10-18 1948-07-02 Halftone screen for use in the

Publications (1)

Publication Number Publication Date
GB648686A true GB648686A (xx) 1951-01-10

Family

ID=26713500

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2005647A Expired GB648686A (xx) 1941-10-18 1947-07-25

Country Status (2)

Country Link
US (2) US2373489A (xx)
GB (1) GB648686A (xx)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2983604A (en) * 1955-11-03 1961-05-09 Gen Aniline & Film Corp Quenching solution for fluorescent photographic paper employed in the manufacture ofhalftone negatives
US3352728A (en) * 1963-12-13 1967-11-14 Keuffel & Esser Co Material and method for making stencil masters
US3647471A (en) * 1969-11-19 1972-03-07 Lockheed Aircraft Corp Photographic reproduction of halftone screens
CA1005676A (en) * 1972-08-31 1977-02-22 Eastman Kodak Company Information receiving element

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1162162A (en) * 1913-05-09 1915-11-30 Mabel K Hatt Process of producing printing-plates.
US1988891A (en) * 1931-07-23 1935-01-22 Gaspar Bela Method of producing photographs in two or more colors
US2304988A (en) * 1940-04-19 1942-12-15 Eastman Kodak Co Photomechanical reproduction

Also Published As

Publication number Publication date
US2468680A (en) 1949-04-26
US2373489A (en) 1945-04-10

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