DE250183C - - Google Patents

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Publication number
DE250183C
DE250183C DENDAT250183D DE250183DA DE250183C DE 250183 C DE250183 C DE 250183C DE NDAT250183 D DENDAT250183 D DE NDAT250183D DE 250183D A DE250183D A DE 250183DA DE 250183 C DE250183 C DE 250183C
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DE
Germany
Prior art keywords
light
objects
layer
working
gradation
Prior art date
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Application number
DENDAT250183D
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German (de)
Publication of DE250183C publication Critical patent/DE250183C/de
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Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00Photosensitive materials
    • G03C1/005Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/035Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein characterised by the crystal form or composition, e.g. mixed grain
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00Photosensitive materials
    • G03C1/005Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/035Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein characterised by the crystal form or composition, e.g. mixed grain
    • G03C2001/03564Mixed grains or mixture of emulsions

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

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

- M 250183 -' KLASSE 57*. GRUPPE- M 250183 - 'CLASS 57 *. GROUP

in BERLIN-STEGLITZ.in BERLIN-STEGLITZ.

Verfahren zur Herstellung lichtempfindlicher Schichten. Patentiert im Deutschen Reiche vom 3. August 1911 ab.Process for the production of photosensitive layers. Patented in the German Empire on August 3, 1911.

Die bisherigen Verfahren, Objekte auf photographischem Wege abzubilden, haben den Nachteil, daß man für verschieden kontrastreiche Gegenstände auch verschieden kontrastreich arbeitende, lichtempfindliche Schichten, die sich auf Platten, Papier, Films usw. befinden können, anwenden muß, um zu große oder zu geringe Kontraste schon bei der Abbildung auszugleichen. So verwendet man fürThe previous method, objects on photographic Mapping paths have the disadvantage that one also has different contrasts for objects with different contrasts working, light-sensitive layers that are on plates, paper, film, etc. can, must apply to too high or too low contrasts already in the picture balance. How to use for

ίο Objekte mit geringen Kontrasten eine hartarbeitende und für Gegenstände mit zu starken eine weicharbeitende Schicht und ist dadurch genötigt, je nach der mannigfachen Beschaffenheit der Objekte besonders angev 15 paßte lichtempfindliche Schichten zu verwenden. Da diese Objekte in den allerverschiedensten Gradationsunterschieden vorhanden sind, so ist zu deren normaler Abbildung eine große Anzahl der verschiedensten lichtempfind- : 2o liehen Schichten nötig.ίο Objects with low contrasts a hard working one and for objects that are too thick, a soft-working layer, and is thereby required, depending on the manifold The nature of the objects, specially adapted light-sensitive layers must be used. Since these objects are present in the most varied of gradation differences, a large number of different photosensitive layers: 2o borrowed layers necessary.

Diesem Übelstande soll die vorliegende Erfindung abhelfen, indem sie die vielen verschiedenen Schichten durch eine einzige ersetzt, die sich den einzelnen Objekten in bezug auf Gradation anzupassen in der Lage ist. Dies wird erreicht, indem man in ihrer Gradation möglichst verschieden arbeitende lichtempfindliche Schichten zusammenmischt, die auf gleiche Lichtarten in verschiedener Weise reagieren. Läßt man nun durch Anwendung eines Farbfilters eine bestimmte Lichtart auf die so gemischte Schicht einwirken, so wird der angestrebte Effekt erreicht, indem vermöge der auswählenden Wirkung der Lichtart jeweilig nur ein einzelner Teil der Schicht in Wirkung tritt. Auf diese Weise ist man durch passende Wahl der Lichtarten in der Lage, mit ein und derselben Schicht von Objekten mit den verschiedensten Kontrasten stets normale Abbildungen zu erhalten.The present invention is intended to remedy this disadvantage by providing the many different Layers replaced by a single layer that is able to adapt to the individual objects in terms of gradation is. This is achieved by working as differently as possible in their gradation light-sensitive layers mixed together that act on the same types of light in different Respond wisely. If you now let a certain type of light by using a color filter act on the layer mixed in this way, the desired effect is achieved by by virtue of the selective effect of the type of light, only a single part of the layer in each case comes into effect. In this way, by choosing the right types of light, you are in the Location, with one and the same layer of objects with the most varied of contrasts always get normal images.

Beispiel.Example.

Eine blauempfindliche hart arbeitende und eine grünempfindliche weich arbeitende Schicht werden zusammengemischt. Diese Schicht arbeitet nun beim blaugrünen Licht normal und eignet sich für Objekte mit normaler Gradation. Will man dagegen ein sehr kontrastreiches Objekt abbilden, so löscht man durch ein nur für grün durchlässiges Filter die auf die hart arbeitende Schicht wirkenden Strahlen aus und erhält also mittels der weich arbeitenden Teile ein normales Bild. Liegt dagegen ein Objekt mit geringen Gegensätzen vor, so läßt man durch ein nur für blau durchlässiges Filter nur die hart arbeitende Emulsion in Wirksamkeit treten und erhält dann ebenfalls ein normales Bild.A blue sensitive hard working layer and a green sensitive soft working layer are mixed together. This layer now works normally with blue-green light and is suitable for objects with normal gradation. On the other hand, if you want a very contrasting one To depict an object, a filter that is only permeable to green erases the effects on the hard-working layer Rays and thus receives a normal image thanks to the softly working parts. If, on the other hand, there is an object with minor contrasts, one lets through an only for blue permeable filter only the hard working emulsion come into effect and then also receives a normal picture.

Claims (1)

Patent-A N SPRU ch:Patent A N SPRU ch: Verfahren zur Herstellung lichtempfindlicher Schichten, dadurch gekennzeichnet, daß in der Gradation verschieden arbeitende lichtempfindliche Stoffe gemischt werden, die auf gleiche Lichtarten in verschiedener Weise reagieren.Process for the production of photosensitive layers, characterized in that that in the gradation differently working light-sensitive substances are mixed, which act on the same types of light in different Respond wisely.
DENDAT250183D Active DE250183C (en)

Publications (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1229843B (en) * 1961-03-24 1966-12-01 Edgerton Germeshausen & Grier Multilayer photographic material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1229843B (en) * 1961-03-24 1966-12-01 Edgerton Germeshausen & Grier Multilayer photographic material

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