DE721469C - Apparatus for contact copying of lenticular film on lenticular film - Google Patents

Apparatus for contact copying of lenticular film on lenticular film

Info

Publication number
DE721469C
DE721469C DEI54804D DEI0054804D DE721469C DE 721469 C DE721469 C DE 721469C DE I54804 D DEI54804 D DE I54804D DE I0054804 D DEI0054804 D DE I0054804D DE 721469 C DE721469 C DE 721469C
Authority
DE
Germany
Prior art keywords
lens
lenticular film
illuminated
light source
copying
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
DEI54804D
Other languages
German (de)
Inventor
Dr John Eggert
Dr Gerd Heymer
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEI54804D priority Critical patent/DE721469C/en
Application granted granted Critical
Publication of DE721469C publication Critical patent/DE721469C/en
Expired legal-status Critical Current

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
    • G03C7/14—Additive processes using lenticular screens; Materials therefor; Preparing or processing such materials

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection-Type Copiers In General (AREA)
  • Stereoscopic And Panoramic Photography (AREA)

Description

Vorrichtung zum Kontaktkopieren von Linsenrasterfilm auf Linsenrasterfilm Es war .schon vorgeschlagen worden, zum Kontaktkapi:eren von Linsenrasterfilm auf Linsenras,terfil:m, wobei die parallel geführten, nicht zueinander gewinkelten Filme mit den Rasterseiten gegeneinandergelegt werden, zwischen. der als beleuchtete Fläche ausgebildeten Lichtquelle und der zu beleuchtenden Schicht meinem gewissen Abstand davon eine Linse oder eine Linsenkombination anzuordnen, so, daß die gleichmäßig beleuchtete Fläche; z. B. eine Mattscheibe, mit Hilfe der Linse oder Linsenhombination auf der photographischen Schicht abgebildet wird. Es wurde nun gefunden, daß es besonders; vorteilhaft ist, vor der als Mattscheibe ausgebildeten LichtqueReeine spaltförmige Bllende anzuordnen, - deren Längsausdehnung senkrecht zur Richtung der Rasterlinsen verläuft. Hierdurch werden durch die eng begrenzte Lichtquelle Unschärfen vermieden. Die Wirkung ist darauf zurückzuführen, daß Gegenstände, die von einer solchen begrenzten Lichtquelle getroffen werden, scharfe Schlagschatten werfen, während eine flächenförmige Lichtquelle Halbischatten @erzeugt, d. h. @es entstehen keine klaren Linien; sondern langsame ÜbiergänIge zum Hell und Dunkel, oder mit anderen Worten, Unschärfen. Die Ausdehnung des Halbschattens ist um so größer, je größer der Abstand zum beleuchteten Gegenstand und derjenigen Fläche ist, auf die der Schatten, fällt.Apparatus for contact copying of lenticular film on lenticular film It had already been suggested for contact capturing of lenticular film Lenticular razor, terfil: m, where the parallel guided, not angled films with the grid sides placed against each other, between. as an illuminated area formed light source and the layer to be illuminated my certain distance of which a lens or a combination of lenses to be arranged so that the evenly illuminated area; z. B. a focusing screen, with the help of the lens or lens combination is imaged on the photographic layer. It has now been found that it particularly; is advantageous in front of the LichtqueReeReeine, which is designed as a ground glass to arrange slit-shaped diaphragm, - its longitudinal extent perpendicular to the direction the lenticular lens runs. This means that the light source is very limited Avoided blurring. The effect is due to the fact that objects that being hit by such a limited light source, sharp cast shadows throw while a planar light source @generates semi-shadows, d. H. @it there are no clear lines; but slow exercises to light and dark, or in other words, blurring. The extent of the penumbra is so greater, the greater the distance to the illuminated object and that surface is on which the shadow falls.

Es war zwar schon bekannt, beim Kontaktkopieren mit gegeneinander gewinkelten Firmen das Bildeines beleuchteten Spaltes auf dem Kopierfilm abzubilden. Es, ist jedoch neu, @daßeine solche Beleuchtungsvorrichtungauch ohne Winkelung der Filme bei üblicher Para17:elführung ein moir efreies Kopierenermöglicht. Dies war nicht vorauszusehen. Ferner ist es neu, hierbei die beleuchtete Fläche als Mattscheibe auszubilden. Auf diese Weise lä.ßt sich in Kombination mit dem sehr einfach gleichmäßig ausgeleuchteten Belichtungsspalt jegliche Unschärfe bei diesem moirefreien Kopieren vermeiden.It was already known when copying with each other in contact angled companies to map the image of an illuminated gap on the copy film. It is new, however, that such a lighting device can also be used without angled the Films with the usual parameters allow moire-free copying. This was not foreseen. Furthermore, it is new, here the illuminated surface as a focusing screen to train. In this way, in combination with the, it is very easy to evenly illuminated exposure gap any blurring in this moire-free copying avoid.

Claims (1)

PATENTANSPRUCH: Vorrichtung zum Kontaktkopieren von Linsenrasterfil'm auf Linsenrasterfilm, wobei die Filme mit den Rasterseiten gegeneinandergelegt und beim Kopieren parallel geführt werden, dadurch gekennzeichnet, daß zwischen der als beleuchtete Mattscheibe ausgebildeten Lichtquelle und der zu beleuchtenden Schicht in einem gewissen Abstand davon eine Linse oder eine Linsenkombination angeordnet ist, so daß die gleichmäßig beleuchtete Mattscheibe mit Hilfe der Linse oder Linsenkombination auf die photographische Schicht abgebildet wird, wobei zwischen der Lichtquelle und der Linse oder der Linsenkombination eine spaltförmige Blende angeordnet ist, deren Längsausdehnung senkrecht zur Richtung der Rasterlinsen verläuft. Claim: Device for contact copying of Linsenrasterfil'm on Linsenrasterfilm , wherein the films are placed with the raster sides against each other and are guided in parallel during copying, characterized in that between the light source designed as an illuminated matt screen and the layer to be illuminated at a certain distance therefrom a lens or A lens combination is arranged so that the evenly illuminated ground glass is imaged on the photographic layer with the help of the lens or lens combination, with a slit-shaped diaphragm being arranged between the light source and the lens or the lens combination, the length of which is perpendicular to the direction of the lenticular lenses.
DEI54804D 1934-04-19 1934-04-19 Apparatus for contact copying of lenticular film on lenticular film Expired DE721469C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI54804D DE721469C (en) 1934-04-19 1934-04-19 Apparatus for contact copying of lenticular film on lenticular film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI54804D DE721469C (en) 1934-04-19 1934-04-19 Apparatus for contact copying of lenticular film on lenticular film

Publications (1)

Publication Number Publication Date
DE721469C true DE721469C (en) 1942-06-06

Family

ID=7193974

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI54804D Expired DE721469C (en) 1934-04-19 1934-04-19 Apparatus for contact copying of lenticular film on lenticular film

Country Status (1)

Country Link
DE (1) DE721469C (en)

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