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DE212766C - - Google Patents

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Publication number
DE212766C
DE212766C DENDAT212766D DE212766DA DE212766C DE 212766 C DE212766 C DE 212766C DE NDAT212766 D DENDAT212766 D DE NDAT212766D DE 212766D A DE212766D A DE 212766DA DE 212766 C DE212766 C DE 212766C
Authority
DE
Germany
Prior art keywords
grid
elements
covered
covered elements
lines
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.)
Active
Application number
DENDAT212766D
Other languages
German (de)
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.)
Publication of DE212766C publication Critical patent/DE212766C/de
Active 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
    • G03F5/22—Screening processes; Screens therefor combining several screens; Elimination of moiré

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung autotypischer Negative, bei welchem die Belichtung durch zwei verschiedene Raster erfolgt, von denen der eine ein gewöhnlicher Kreuzraster ist, ähnlich wie bei dem Verfahren nach dem Patent 167840.The present invention relates to a method for producing autotypical negatives, in which the exposure takes place through two different grids, of which the one is an ordinary cross grid, similar to the method of the patent 167840.

Der Zweck des Verfahrens ist aber nicht so sehr eine Klärung der Lichter herbeizuführen, als vielmehr den Tonreichtum zu vergrößern. The purpose of the procedure, however, is not so much to clarify the lights as rather than increasing the tonal richness.

Der wesentliche Unterschied gegenüber demThe main difference from that

Verfahren nach dem Patent 167840 ist in der besonderen Art des zweiten Rasters begründet, welcher anstatt regelmäßig gedeckter und un-■ gedeckter Elemente große und kleine gedeckte Elemente und gleichgroße ungedeckte Elemente enthält.Method according to patent 167840 is in US Pat special type of the second grid, which instead of regularly covered and un- ■ covered elements large and small covered elements and uncovered elements of the same size contains.

Die kleinen gedeckten Elemente des Rasters sind an den Stellen angeordnet, wo die Eckpunkte von vier benachbarten großen Elementen die Ecken eines kleinen Quadrats bilden (vgl. die Zeichnung).The small covered elements of the grid are arranged at the points where the corner points of four adjacent large elements form the corners of a small square (see the drawing).

Die Anzahl der gedeckten Elemente ist demnach doppelt so groß wie bei dem bekannten Raster.The number of covered elements is therefore twice as large as with the known Grid.

Das Resultat bei Anwendung dieses Rasters in Verbindung mit einem gewöhnlichen, dem. Linien verhältnis angepaßten Kreuzraster ist infolge der enthaltenen doppelten Anzahl von verschieden großen gedeckten Elementen ein vollständig anderes, indem ein wesentlich größerer Tonreichtum im Bilde erzielt wird.The result of using this grid in conjunction with an ordinary one, the. Line ratio adjusted cross grid is due to the contained double number of different sized covered elements a completely different one by being an essential one Greater tonal richness is achieved in the picture.

Claims (1)

Patent-Anspruch:Patent claim: Verfahren zur Herstellung autotypischer Negative durch Belichtung mit zwei verschiedenen Rastern, von denen der eine ein gewöhnlicher Kreuzraster mit dunklen Linien ist, dadurch gekennzeichnet, daß der zweite Raster gedeckte Elemente an den den Öffnungen des ersten Rasters entsprechenden Stellen und kleinere an den Schnittpunkten zweier ungedeckter Linien 45-enthält. Process for the production of autotypical negatives by exposure to two different Grids, one of which is an ordinary cross grid with dark Lines is characterized in that the second grid covered elements at the corresponding to the openings of the first grid Places and minor at the intersection of two uncovered lines 45-contains. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DENDAT212766D 1909-05-24 Active DE212766C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190912214T 1909-05-24

Publications (1)

Publication Number Publication Date
DE212766C true DE212766C (en)

Family

ID=32554896

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT212766D Active DE212766C (en) 1909-05-24

Country Status (3)

Country Link
DE (1) DE212766C (en)
FR (1) FR402864A (en)
GB (1) GB190912214A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE746623C (en) * 1938-06-25 1944-08-16 Emil Baer Process for making screened colloid relief printing forms

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE746623C (en) * 1938-06-25 1944-08-16 Emil Baer Process for making screened colloid relief printing forms

Also Published As

Publication number Publication date
FR402864A (en) 1909-10-19
GB190912214A (en) 1910-04-21

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