GB191324482A - Improvements in Screens for use in Photographic Reproducing Processes. - Google Patents

Improvements in Screens for use in Photographic Reproducing Processes.

Info

Publication number
GB191324482A
GB191324482A GB191324482DA GB191324482A GB 191324482 A GB191324482 A GB 191324482A GB 191324482D A GB191324482D A GB 191324482DA GB 191324482 A GB191324482 A GB 191324482A
Authority
GB
United Kingdom
Prior art keywords
screen
screens
reproducing processes
apertures
photographic reproducing
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
Inventor
Ludwig Boehm
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.)
Individual
Original Assignee
Individual
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
Priority claimed from US756222A external-priority patent/US1464139A/en
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of GB191324482A publication Critical patent/GB191324482A/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

Abstract

24,482. B÷hm, L. Oct. 28. Photomechanical printing-surfaces. - In a screen for use in photographic reproducing processes for pictures, paper securities, &c., the apertures, as illustrated in Fig. 2, consist of irregular polygons of approximately equal superficial areas, irregularly distributed over the screen, the lines separating the screen areas or apertures having the same thickness or intensity throughout the screen surface. Alternatively, the points or dots of the screen may be black and the lines white. The screens are used for printing in several colours.
GB191324482D 1913-03-22 1913-10-28 Improvements in Screens for use in Photographic Reproducing Processes. Expired GB191324482A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US756222A US1464139A (en) 1913-03-22 1913-03-22 Photographic screen
GB91324482T 1913-10-28

Publications (1)

Publication Number Publication Date
GB191324482A true GB191324482A (en) 1914-03-05

Family

ID=32827101

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191324482D Expired GB191324482A (en) 1913-03-22 1913-10-28 Improvements in Screens for use in Photographic Reproducing Processes.

Country Status (3)

Country Link
DE (1) DE276016C (en)
FR (1) FR466909A (en)
GB (1) GB191324482A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE748273C (en) * 1941-11-22 1944-10-31 Herbst & Illig Glass grid for the autotypical image decomposition for the moire-free multi-color stuff printing

Also Published As

Publication number Publication date
FR466909A (en) 1914-05-28
DE276016C (en)

Similar Documents

Publication Publication Date Title
ATE256304T1 (en) SECURITY DOCUMENT WITH VARIOUS TINT
US2039195A (en) Printing member
GB191324482A (en) Improvements in Screens for use in Photographic Reproducing Processes.
GB656235A (en) Improvements in or relating to printing plates, contrast images for making printing plates and method for making the images
US951521A (en) Process of making cut-printing plates.
US547780A (en) Method of printing in colors and screen therefor
US1104126A (en) Transfer-picture.
US1100854A (en) Method of making printing-plates.
GB202702A (en) New or improved safety tint paper
US1128665A (en) Printing-plate.
US754281A (en) Stencil.
US3307478A (en) Imprinting carbon-master set
JPS6110482A (en) Duplication-unabled manuscript sheet
US559687A (en) Albert b
US126861A (en) Improvement in producing pictures from photographic and other negatives
US788274A (en) Process of making prints on dark backgrounds.
GB191110928A (en) An Improved Method of Producing Raised Impressions on Prints, Maps, and the like.
JPS625347Y2 (en)
DE730490C (en) Process for the production of screen printing stencils
US758338A (en) Art of photomechanical printing.
GB190111271A (en) Improvements in or relating to Pictorial Letter Cards
GB191309610A (en) Improvements in Kinematography in Natural Colours.
US1110869A (en) Stencil card or sheet and process of producing same.
GB435913A (en) Improvements in or relating to stencil sheets
US465833A (en) Joseph cavallt