DE548508C - Process for the production of photographs which can be used simultaneously as a top view and a see-through image - Google Patents

Process for the production of photographs which can be used simultaneously as a top view and a see-through image

Info

Publication number
DE548508C
DE548508C DEF69642D DEF0069642D DE548508C DE 548508 C DE548508 C DE 548508C DE F69642 D DEF69642 D DE F69642D DE F0069642 D DEF0069642 D DE F0069642D DE 548508 C DE548508 C DE 548508C
Authority
DE
Germany
Prior art keywords
image
see
production
photographs
top view
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
DEF69642D
Other languages
German (de)
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
Application filed by Individual filed Critical Individual
Priority to DEF69642D priority Critical patent/DE548508C/en
Application granted granted Critical
Publication of DE548508C publication Critical patent/DE548508C/en
Expired legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/74—Applying photosensitive compositions to the base; Drying processes therefor
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/46—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein having more than one photosensitive layer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Description

Verfahren zur Herstellung von gleichzeitig als Aufsichts- und Durchsichtsbild verwendbaren Photographien Die Herstellung von gleichzeitig als Aufsichts- und Durchsichtsbild wirkenden photographischen Bildern wird z. Zt. in der Weise vorgenommen, daß ein doppelseitig emufsionierter opaker Schichtträger auf der Vorderseite das Aufsichtsbild und auf der Rückseite das für die Durchsicht erforderliche Verstärkungsbild trägt. Durch die Opazität des Schichtträgers ist in der Aufsicht nur das Bild auf der Vorderseite, in der Durchsicht beide Bilder sichtbar. Die Herstellung derartiger Bilder wird mit Hilfe von lichtempfindlichen Schichten erzielt, bei denen die Schicht auf der einen Seite entweder höher empfindlich oder geringer silberhaltig als die andere Seite ist. Beide Methoden haben den Nachteil, daß sie nicht ein beliebiges stärkeres Hervortreten des vorderseitigen bzw. rückseitigen Bildes gestatten, was häufig erwünscht ist, wenn bei der Herstellung des doppelseitigen Materials das Verhältnis der Empfindlichkeiten nicht genau getroffen oder durch verschieden schnelle Alterung der Schichten eine Verschiebung der Empfindlichkeiten eingetreten ist. Es ist auch häufig erwünscht, die Deckung des Durchsichtsbildes unabhängig von der Deckung des Aufsichtsbildes variieren zu können. Die vorliegende Erfindung will diese Mängel dadurch beseitigen, daß die vorderseitige und rückseitige Schicht gegen verschiedene Strahlungsgebiete verschieden empfindlich ist, so daß die Stärke der Bildbildung auf der Vorder- bzw. Rückseite durch Vorschalten von geeigneten Lichtfiltern bzw. Verwendung von geeigneten Strahlenarten in beliebiger Weise beeinflußt werden kann. Hierbei ist das Verhältnis der Allgemeinempfindlichkeit der beiden Schichten unwesentlich.Process for the production of a top view and a see-through image at the same time Photographs that can be used The production of both a top view and a see-through image acting photographic images is z. Made in such a way that a double-sided, opaque layer carrier on the front the reflective image and bears the reinforcement image required for the see-through on the back. Due to the opacity of the substrate, only the image on the front is visible when viewed from above, Both images are visible in the review. The production of such images is achieved with the help of photosensitive layers, in which the layer on the one side is either more sensitive or contains less silver than the other Side is. Both methods have the disadvantage that they cannot be any stronger Allow the front or back image to emerge, which is often desired is when in the manufacture of the double-sided material the ratio of sensitivities not exactly hit or due to the layers aging at different rates Shift in sensitivities has occurred. It is also often desirable the coverage of the transparent image independent of the coverage of the reflective image to be able to vary. The present invention seeks to overcome these shortcomings by that the front and back layers against different radiation areas is differently sensitive, so that the strength of the image formation on the front or Rear side by connecting suitable light filters or using suitable ones Types of radiation can be influenced in any way. Here is the ratio the general sensitivity of the two layers is insignificant.

Nimmt man z. B. auf der Vorderseite eine vorwiegend blau bis ultraviolett empfindliche Schicht, auf der Rückseite eine grün bis blau empfindliche Schicht, so erhält man bei der Einwirkung von ultraviolettem Licht im wesentlichen ein Bild auf ,der Vorderseite, bei grünem Licht auf der Rückseite und bei blauem oder grün bis ultraviolettem Licht ein Bild auf beiden Seiten. Durch geeignete Variierung des Lichtes kann jede beliebige Stärke des vorder- bzw. rückseitigen Bildes erzielt werden.If you take z. B. on the front a predominantly blue to ultraviolet sensitive layer, on the back a green to blue sensitive layer, thus essentially an image is obtained upon exposure to ultraviolet light on, the front, with green light on the back and with blue or green until ultraviolet light creates an image on both sides. By suitable variation of the light can achieve any strength of the front or back image will.

Eine weitere Variationsmöglichkeit ist dadurch gegeben, daß man anstatt von der Vorderseite aus von der Rückseite her belichtet und hierbei ebenfalls je nach dem gewünschten Effekt die Strahlenart .des Lichtes variiert.Another possible variation is that instead of exposed from the front from the back and here also each The type of radiation of the light varies according to the desired effect.

Verwendet man lichtempfindliche Schichten verschiedener Gradation, so kann das Aufsichtsbild in zwei verschiedenen Gradationen hergestellt werden, je nachdem man von der Vorder- oder von der Rückseite belichtet, während das Durchsichtsbild in jeder beliebigen Gradation, die zwischen der Originalgradation der Emulsion der Vorder- und der Rückseite liegt, hergestellt werden kann.If you use light-sensitive layers of different gradation, so the top view can be produced in two different gradations, depending on whether one is exposed from the front or from the back, while the see-through image in any gradation that is between the original gradation the Emulsion of the front and the back is, can be produced.

Bei der Herstellung von Durchsichtsbildern verschiedener Gradation kann auch ein nicht opaker Schichtträger verwendet werden.In the production of transparencies of different gradation a non-opaque support can also be used.

Als Schichtträger kann jedes beliebige opake Material, wie opakes Papier, Film, Glas, Leinen usw., dienen.Any desired opaque material, such as opaque Paper, film, glass, linen, etc., serve.

Claims (2)

PATENTANSPRÜCI3E: i. Verfahren zur Herstellung von gleichzeitig als Aufsichts- und Durchsichtsbild verwendbaren Photographien, dadurch gekennzeichnet, daß ein opaker Schichtträger auf beiden Seiten mit voneinander verschieden farbenempfindlichen Emulsionen versehen und. mit Hilfe einer Vorlage unter Verwendung von Farbfiltern bzw. von geeigneten Strahlenarten belichtet wird. PATENT CLAIMS: i. Process for the production of simultaneously as Photographs that can be used overhead and see-through images, characterized in that that an opaque support on both sides with different color-sensitive Provide emulsions and. with the help of a template using color filters or is exposed by suitable types of radiation. 2. Verfahren nach Anspruch I, dadurch gekennzeichnet, daß lichtempfindliche Schichten verschiedener Gradation verwendet werden.2. The method according to claim I, characterized in that light-sensitive layers of different gradation be used.
DEF69642D 1929-11-13 1929-11-13 Process for the production of photographs which can be used simultaneously as a top view and a see-through image Expired DE548508C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF69642D DE548508C (en) 1929-11-13 1929-11-13 Process for the production of photographs which can be used simultaneously as a top view and a see-through image

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF69642D DE548508C (en) 1929-11-13 1929-11-13 Process for the production of photographs which can be used simultaneously as a top view and a see-through image

Publications (1)

Publication Number Publication Date
DE548508C true DE548508C (en) 1932-08-04

Family

ID=7111176

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF69642D Expired DE548508C (en) 1929-11-13 1929-11-13 Process for the production of photographs which can be used simultaneously as a top view and a see-through image

Country Status (1)

Country Link
DE (1) DE548508C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996021572A2 (en) * 1995-01-07 1996-07-18 Debden Security Printing Limited A method of forming a composite image and a lamina for use in the method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996021572A2 (en) * 1995-01-07 1996-07-18 Debden Security Printing Limited A method of forming a composite image and a lamina for use in the method
WO1996021572A3 (en) * 1995-01-07 1996-09-06 Derben Security Printing Ltd A method of forming a composite image and a lamina for use in the method

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