DE643283C - Process for suppressing the moire effect during optical copying of lenticular films - Google Patents
Process for suppressing the moire effect during optical copying of lenticular filmsInfo
- Publication number
- DE643283C DE643283C DES90923D DES0090923D DE643283C DE 643283 C DE643283 C DE 643283C DE S90923 D DES90923 D DE S90923D DE S0090923 D DES0090923 D DE S0090923D DE 643283 C DE643283 C DE 643283C
- Authority
- DE
- Germany
- Prior art keywords
- suppressing
- lenticular
- effect during
- moire effect
- films
- 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
Landscapes
- Facsimile Scanning Arrangements (AREA)
Description
Verfahren zur Unterdrückung des Moireeffektes beim optischen Kopieren von Linsenrasterfilmen Die Erfindung bezieht sich auf ein Verfahren zur Unterdrückung des Moireeffektes beim optischen Kopieren von Linsenrasterfilmen auf Linsenrasterfilme mit einer in ihrer Größe von der Rasterung des Originalfilms abweichenden Rasterung. Erfindungsgemäß kommt ein Objektiv von solcher Beschaffenheit zur Anwendung, daß der Durchmesser der Zerstreuungskreise gleich der Breite der kleineren Rasterelemente ist.Process for suppressing the moire effect during optical copying of lenticular films The invention relates to a method of suppression the moire effect when optically copying lenticular films onto lenticular films with a grid that differs in size from the grid of the original film. According to the invention, a lens of such a nature is used that the diameter of the circles of confusion is equal to the width of the smaller grid elements is.
Beim optischen Kopieren von Linsenrasterfilmen auf Linsenrasterfilme mit gleich großer Rasterung ist die Anwendung von Objektiven bekannt, deren Zerstreuungskreis denselben Durchmesser aufweist wie die für beide Filme gleich große Breite einer Rasterlinse.When optically copying lenticular films onto lenticular films The use of lenses with the same size grid is known, their circle of confusion has the same diameter as the width of one of the same size for both films Lenticular lens.
Bei Filmen, die in der Größe ihrer Rasterung voneinander verschieden sind, bietet der für die Anwendung der sich aus dem Bekannten ergebenden Lehre auf diesen Fall eingeschlagene Weg den Vorteil, daß er stets zum Ziel bei Beschränkung der notwendigen Verunschärfung auf das kleinste erforderliche Maß führt. Außerdem spielt .die Breite der Rasterlinsen des Originalfilms keine Rolle bei der Auswahl des Kopierobjektivs, wenn sie nur größer ist als die der Rasterlinsen des Kopierfilms. Man hat dadurch bei der Aufnahme eine wesentlich freiere Verfügung über die vorhandenen Filmarten, als wenn etwa die Anpassung des Zerstreuungskreisdurchmessers an die größere Rasterung erfolgen würde. .For films that differ from one another in terms of their grid size are, the offers for the application of the teaching resulting from the known The path taken in this case has the advantage that it always reaches the goal in the event of restriction the necessary blurring to the smallest required level. aside from that The width of the lenticular lenses of the original film does not play a role in the selection of the copy lens if it is only larger than that of the lenticular lenses of the copy film. This gives you much more freedom over the existing ones when recording Kinds of film, as if about adapting the circle of confusion diameter to the larger rasterization would be done. .
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR643283X | 1928-08-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE643283C true DE643283C (en) | 1937-04-03 |
Family
ID=8999315
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES90923D Expired DE643283C (en) | 1928-08-09 | 1929-04-04 | Process for suppressing the moire effect during optical copying of lenticular films |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE643283C (en) |
-
1929
- 1929-04-04 DE DES90923D patent/DE643283C/en not_active Expired
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