DE302394C - - Google Patents
Info
- Publication number
- DE302394C DE302394C DENDAT302394D DE302394DA DE302394C DE 302394 C DE302394 C DE 302394C DE NDAT302394 D DENDAT302394 D DE NDAT302394D DE 302394D A DE302394D A DE 302394DA DE 302394 C DE302394 C DE 302394C
- Authority
- DE
- Germany
- Prior art keywords
- grid
- photographs
- transformation
- glass
- lines
- 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.)
- Active
Links
- 239000011521 glass Substances 0.000 claims description 3
- 230000001131 transforming Effects 0.000 claims description 3
- 239000011888 foil Substances 0.000 description 2
- 241000189705 Dunedin group Species 0.000 description 1
- 241000490229 Eucephalus Species 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44F—SPECIAL DESIGNS OR PICTURES
- B44F1/00—Designs or pictures characterised by special or unusual light effects
- B44F1/08—Designs or pictures characterised by special or unusual light effects characterised by colour effects
- B44F1/10—Changing, amusing, or secret pictures
Landscapes
- Peptides Or Proteins (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
- M 302394 — KLASSE 75 d. GRUPPE- M 302394 - CLASS 75 d. GROUP
AUGUST TILL in HAMBURG.AUGUST TILL in HAMBURG.
Raster für Verwandlungs-Photographien.Grid for transformation photographs.
Patentiert im Deutschen Reiche vom 11. April 1917 ab.Patented in the German Empire on April 11, 1917.
Unter Verwandlungs-Photographien versteht man bekanntlich zwei (oder auch mehrere) photographische Aufnahmen, die unter Vorschaltung eines Linienrasters derart auf eine photographische Platte aufgenommen sind, daß nach der ersten Belichtung der Raster um seine Linienweite verschoben wird, worauf die zweite Belichtung der Platte stattfindet. Wird auf den Abzug einer solchen Aufnahme einAs is well known, transformation photographs are two (or more) Photographic recordings, which are preceded by a line grid in such a way on a photographic plate are recorded that after the first exposure the grid order its line width is shifted, whereupon the second exposure of the plate takes place. Will on the deduction of such a recording
ίο korrespondierender Raster gelegt, so ist nur eine der Aufnahmen sichtbar. Nach Verschiebung des Rasters um seine Linienweiteίο laid the corresponding grid, so is only one of the recordings visible. After moving the grid by its line width
■ verschwindet diese, und die zweite Aufnahme kommt zum Vorschein.■ this disappears and the second image appears.
Als Auflager aster verwendete man zu diesem Zwecke bisher auf Glas oder dünne Folien gezogene schwarze Linien. Diese beeinträchtigen naturgemäß bei der Betrachtung die Klarheit des Bildes, zumal, da aus technischen Gründen die Linienweite des Rasters nicht zu fein gewählt werden darf.For this purpose, aster was previously used as a support on glass or thin foils drawn black lines. These naturally impair the clarity when viewed of the image, especially because for technical reasons the line width of the grid is not increasing may be chosen fine.
Die vorliegende Erfindung bezweckt daher, : den Raster weniger aufdringlich zu machen. Dies wird erreicht, indem auf Glas oder Folien anstatt schwarzer Linien, solche · von weißlicher bzw. hellgrauer Färbung gezogen werden, deren Deckung aber immerhin ausreicht, das unter ihnen liegende Teilbild unsichtbar zu machen.The present invention therefore aims to : make the grid less obtrusive. This is achieved in that instead of black lines, lines of whitish or light gray color are drawn on glass or foils, but their coverage is sufficient to make the partial image below them invisible.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE302394C true DE302394C (en) |
Family
ID=556202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT302394D Active DE302394C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE302394C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19837605A1 (en) * | 1998-08-19 | 2000-02-24 | Thomas Zeggel | Raster of light and dark lines for coded picture information incorporates lines of varying width with phase changes to code for additional light and dark areas |
-
0
- DE DENDAT302394D patent/DE302394C/de active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19837605A1 (en) * | 1998-08-19 | 2000-02-24 | Thomas Zeggel | Raster of light and dark lines for coded picture information incorporates lines of varying width with phase changes to code for additional light and dark areas |
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