DE489794C - Color halftone photographic plate or film - Google Patents
Color halftone photographic plate or filmInfo
- Publication number
- DE489794C DE489794C DER72578D DER0072578D DE489794C DE 489794 C DE489794 C DE 489794C DE R72578 D DER72578 D DE R72578D DE R0072578 D DER0072578 D DE R0072578D DE 489794 C DE489794 C DE 489794C
- Authority
- DE
- Germany
- Prior art keywords
- film
- photographic plate
- color halftone
- grid
- image
- 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
Links
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
- G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
- G03C7/04—Additive processes using colour screens; Materials therefor; Preparing or processing such materials
- G03C7/06—Manufacture of colour screens
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
Description
Photographische Farbraster-Platte oder -Film Es ist für einzelne Zwecke der Farbrästerphotographie von Vorteil, wenn der Mosaikcharaltter des fertigen Rasterbildes etwas unterdrückt wird. Dies läßt sich erreichen, wenn man auf die Blankseite des Schichtträgers gleichfalls eine lichtempfindliche panchromatische Emulsion von entsprechend abgestimmter Empfindlichkeit aufbringt und durch diese hindurch das Bild aufnimmt. Man erhält so nach dem Entwickeln ein Verbundbild, bestehend aus einem sehr dünnen Schwarzweißbild und einem kräftigen Farbbild.Photographic color raster plate or film It is advantageous for individual purposes of color raster photography if the mosaic character of the finished raster image is suppressed somewhat. This can be achieved if one likewise applies to the blank side of the support a light-sensitive emulsion of panchromatic sensitivity of a harmonized and through the image Record t. A composite image is thus obtained after development, consisting of a very thin black-and-white image and a strong color image.
In der Abbildung ist als Ausführungsbeispiel ein Film nach der Erfindung im Schnitt dargestellt. Es bedeutet F den Schichtträger, also z. B. Celluloid, R die Rasterschicht, die z. B. aus roten, grünen und blauen Rasterelementen aufgebaut ist; Sl und S2 sind die beiden panchromatischen Schichten, von denen Si vergleichsweise wenig, S2 aber sehr empfindlich sein kann. Die Belichtung erfolgt in Richtung des Pfeiles, also von S1 her nach S2 hin. Es entsteht nach dem gemeinsamen Entwickeln in Sl ein sehr dünnes gewöhnliches Schwarzweißbild, in S2 aber ein gerastertes kräftiges Bild.In the figure is a film according to the invention as an embodiment shown in section. It means F the support, so z. B. Celluloid, R the grid layer that z. B. composed of red, green and blue grid elements is; Sl and S2 are the two panchromatic layers, of which Si is comparative little, but S2 can be very sensitive. The exposure is in the direction of the Arrow, i.e. from S1 to S2. It arises after developing together in S1 a very thin ordinary black-and-white image, but in S2 a strong rasterized image Image.
Erfolgt das Scharfeinstellet auf die dem Raster unmittelbar anliegende Schicht, so entstehen in der andern Schicht gewisse Un,-schärfen, und umgekehrt. Außerdem bewirkt der Umstand, daß, die im Strahlengang vorn liegendo Schicht selbst dann, wenn sie arm an Silbersalz ist, eine, gewisse Lichtstreuung erzeugt, eine wenn auch nur geringe Er- , höhung der Weichheit des Gesamtbildes. Alles trägt dazu bei, daß der Mosaikcharakter des Bildes bei. dem subjektiven Betrachten oder beim Projizieren herabgesetzt wird.If the focus is on the one directly adjacent to the grid Layer, then in the other layer certain blurring and blurring arise, and vice versa. In addition, the fact that the layer lying in front in the beam path itself then, when it is poor in silver salt, it produces a certain scattering of light, a even if only a slight increase in the softness of the overall picture. Everything contributes to it at that the mosaic character of the picture at. the subjective observation or the Projecting is degraded.
Die Erfindung kann auch in der Weise weiter ausgeführt werden, daß, die Schicht Si nach irgendeinem bekannten Verfahren so behandelt wird, daß in ihr eine Mattwirkung auftritt. Wenn dann die Projektion von der anderen Seite erfolgt, so wirkt diese Mattschickt ebenfalls zerstreuend auf die Rasterstruktur.The invention can also be carried out further in such a way that, the layer Si is treated by any known method so that a matt effect occurs. Then when the projection is from the other side, so this Mattschickt also has a dispersing effect on the grid structure.
Zweiseitig belegte Schichtträger sind in der Photographie bekannt. Sie sind aber zu dem hier angeführten Zweck und im besonderen bei Farbrastern bisher noch nicht bekannt geworden.Two-sided coated substrates are known in photography. But they are for the purpose stated here and in particular for color grids so far not yet known.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DER72578D DE489794C (en) | Color halftone photographic plate or film |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DER72578D DE489794C (en) | Color halftone photographic plate or film |
Publications (1)
Publication Number | Publication Date |
---|---|
DE489794C true DE489794C (en) | 1930-01-20 |
Family
ID=7414407
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DER72578D Expired DE489794C (en) | Color halftone photographic plate or film |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE489794C (en) |
-
0
- DE DER72578D patent/DE489794C/en not_active Expired
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