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DE226614C - PROCESS FOR THE PRODUCTION OF CORNED OR DISCONNECTED PHOTOGRAPHICAL IMAGES - Google Patents

PROCESS FOR THE PRODUCTION OF CORNED OR DISCONNECTED PHOTOGRAPHICAL IMAGES

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Publication number
DE226614C
DE226614C DE1906226614D DE226614DA DE226614C DE 226614 C DE226614 C DE 226614C DE 1906226614 D DE1906226614 D DE 1906226614D DE 226614D A DE226614D A DE 226614DA DE 226614 C DE226614 C DE 226614C
Authority
DE
Germany
Prior art keywords
production
corned
disconnected
layer
photographic
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
DE1906226614D
Other languages
German (de)
Inventor
Rudolf Widmann
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
Application granted granted Critical
Publication of DE226614C publication Critical patent/DE226614C/en
Expired legal-status Critical Current

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Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F5/00Screening processes; Screens therefor
    • G03F5/14Screening processes; Screens therefor by contact methods

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Printing Methods (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

-JVr 226614-KLASSE 57d. GRUPPE -JVr 226614- CLASS 57 d. GROUP

RUDOLF WIDMANN in MÜNCHEN.RUDOLF WIDMANN in MUNICH.

photographischen Bildern.photographic images.

Patentiert im Deutschen Reiche vom 8. November 1906 ab.Patented in the German Empire on November 8, 1906.

Gegenstand der Erfindung ist ein Verfahren zur Herstellung von in Einzelelemente zerlegten photographischen Bildern unter Verwendung von Rastern mit relief artig aufgeteilter 5 Oberfläche, welche z. B. als »Metzographraster« bekannt sind. Für das Verfahren sind aber Raster vorzuziehen, welche im Gegensatze zum »Metzographraster« eine Oberflächenaufteilung von verhältnismäßig großer Tiefe aufweisen. Von. den sonst gebräuchlichen, z. B. den Kreuzrastern unterscheiden sich die für das Verfahren anwendbaren Raster dadurch, daß ihre Oberfläche reliefartig zerlegt ist und daß sie nirgends lichtundurchlässig sind. DasThe invention relates to a method for the production of disassembled into individual elements photographic images using grids with relief-like subdivided 5 surface, which z. B. are known as "Metzographraster". For the procedure, however, are Grid is preferable, which, in contrast to the »Metzographraster«, has a surface division have of relatively great depth. From. the otherwise common, z. B. The grids that can be used for the procedure differ from the cross grids in that that their surface is broken up like a relief and that they are nowhere opaque. That

!5 Wesen der vorliegenden Erfindung besteht in der von der üblichen völlig abweichenden Benutzungsart dieser Raster, indem ein solcher mit einer photographischen Schicht auf der rastrierten Seite versehen und entweder so,! 5 essence of the present invention consists in the use of this grid, which is completely different from the usual, by such a provided with a photographic layer on the rasterized side and either so,

d. h. wie eine gewöhnliche photographische Platte mit der Schichtseite dem Objektiv zugekehrt, zur Aufnahme benutzt wird oder, indem die Schicht nach ihrer Trocknung abgezogen wird und allein zur Aufnahme dient.d. H. like an ordinary photographic plate with the layer side facing the lens, is used for recording or by removing the layer after it has dried and is used only for recording.

In dem auf einer so zugerichteten photographischen Schicht erhaltenen Negativ zeigen die erhabenen Stellen, also diejenigen, welche bei der Aufnahme dem Objektiv näher lagen als die anderen, eine stärkere Deckung. Dieses Negativ dient zum üblichen Kopieren. Die beiliegende Figur veranschaulicht im Schnitt vergrößert die Kopieranordnung eines mit dem Raster verbundenen Negativs. Dabei stellt α die Rasterplatte, δ' das Negativ, c die hiermit in Kontakt gebrachte Kopierschicht, ζ. B. eine Chromatgelatineschicht, und d deren Unterlage, z.B. eine Metallplatte dar; e deutet die Kopierwirkung an. Unter den Raster- und den Negativschichtvertiefungen findet eine wesentlich stärkere Kopierung statt als unter den die Kopierschicht berührenden Einzelelementen des Negativs, welche bei der photographischen Aufnahme eine stärkere Belichtung und durch die Entwicklung eine stärkere Schwärzung erhalten haben. Man erhält auf diese Weise eine entwickelte Chromatgelatinekopie, die aus kräftig kopierten, das Bild zeichnenden Einzelelementen und aus schwächer kopierten besteht, die reliefmäßig abgestuft sind und tiefer liegen und sich ihrer Abstufung nach durchätzen lassen. Solche entwickelten Chromatgelatinekopien können entweder zur galvanoplastischen Abformung verwandt werden, oder sie liefern durch Ätzung ohne besondere Nachhilfe vermittels Einwalzen u. dgl. brauchbare Druckformen. In the negative obtained on a photographic layer prepared in this way, the raised areas, that is to say those which were closer to the objective than the others when the picture was taken, show a greater degree of coverage. This negative is used for normal copying. The accompanying figure illustrates in section enlarged the copier arrangement of a negative connected to the grid. Here, α represents the grid plate, δ 'the negative, c the copy layer brought into contact with it, ζ. B. a chromate gelatin layer, and d its base, for example a metal plate; e indicates the copying effect. Significantly stronger copying takes place under the raster and negative layer depressions than under the individual elements of the negative touching the copy layer, which have received a stronger exposure during the photograph and a stronger blackening due to the development. In this way, a developed chromate gelatine copy is obtained, which consists of strongly copied individual elements that mark the image and of less copied elements, which are graduated in relief, lie deeper and can be etched through according to their gradation. Such developed chromate gelatine copies can either be used for electroforming, or they provide usable printing forms by etching without special assistance by means of rolling and the like.

An Stelle von Glasrastern können vorteilhaft Raster aus Zelluloid oder Gelatine, z. B. durch Prägung oder Guß hergestellt und mit ' der photographischen Aufnahmeschicht versehen werden, oder es können auch geeignete Aufnahmeschichten, deren Oberfläche Reliefrasterform zeigt, z. B. als Films verwendet werden. Hierdurch kann eine wesentliche Vereinfachung erzielt werden, so z. B. für das Lichtdruckverfahren, insofern die Kornbildung in der Kopierschicht, und für die Photogra-Instead of glass grids, grids made of celluloid or gelatin, e.g. B. produced by embossing or casting and provided with 'the photographic receiving layer or suitable recording layers, the surface of which is in the form of a raster relief shows e.g. B. can be used as a film. This can be an essential Simplification can be achieved, e.g. B. for the collotype process, insofar as the grain formation in the copy layer, and for the photographic

vure, insofern das Anbringen des Staubkornes auf der zu ätzenden Platte entbehrlich wird.vure, insofar as it is not necessary to attach the dust particle to the plate to be etched.

Claims (1)

Patent-Anspruch :Patent claim: Verfahren zur Herstellung von gekörnten oder sonst in Einzelelemente zerlegten photographischen Bildern, dadurch gekennzeichnet, daß die photographische Aufnahme auf lichtempfindlichen Schichten erfolgt, deren Oberflächenteile an nebeneinanderliegenden Stellen in verschiedenen Ebenen liegen.Process for the production of granular or otherwise broken down into individual elements photographic images, characterized in that the photographic recording takes place on light-sensitive layers, the surface parts of which are adjacent to one another Places in different planes. Hierzu ι Blatt Zeichnungen.For this purpose ι sheet of drawings.
DE1906226614D 1906-11-08 1906-11-08 PROCESS FOR THE PRODUCTION OF CORNED OR DISCONNECTED PHOTOGRAPHICAL IMAGES Expired DE226614C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE226614T 1906-11-08

Publications (1)

Publication Number Publication Date
DE226614C true DE226614C (en) 1910-10-06

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DE1906229552D Expired DE229552C (en) 1906-11-08 1906-11-08 PROCESS FOR THE PRODUCTION OF CORNED OR DISCONNECTED PHOTOGRAPHICAL IMAGES
DE1906226614D Expired DE226614C (en) 1906-11-08 1906-11-08 PROCESS FOR THE PRODUCTION OF CORNED OR DISCONNECTED PHOTOGRAPHICAL IMAGES

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE1906229552D Expired DE229552C (en) 1906-11-08 1906-11-08 PROCESS FOR THE PRODUCTION OF CORNED OR DISCONNECTED PHOTOGRAPHICAL IMAGES

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3260603A (en) * 1962-11-23 1966-07-12 Minnesota Mining & Mfg Rough surfaced copy-sheet intermediate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3260603A (en) * 1962-11-23 1966-07-12 Minnesota Mining & Mfg Rough surfaced copy-sheet intermediate

Also Published As

Publication number Publication date
DE229552C (en) 1910-12-24

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