DE164978C - - Google Patents
Info
- Publication number
- DE164978C DE164978C DENDAT164978D DE164978DA DE164978C DE 164978 C DE164978 C DE 164978C DE NDAT164978 D DENDAT164978 D DE NDAT164978D DE 164978D A DE164978D A DE 164978DA DE 164978 C DE164978 C DE 164978C
- Authority
- DE
- Germany
- Prior art keywords
- frame
- linkage
- frames
- support point
- enlargement
- 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
- 230000009467 reduction Effects 0.000 claims description 10
- 230000010355 oscillation Effects 0.000 claims description 2
- 239000005338 frosted glass Substances 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B27/00—Photographic printing apparatus
- G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
- G03B27/52—Details
- G03B27/68—Introducing or correcting distortion, e.g. in connection with oblique projection
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Accessories Of Cameras (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE164978C true DE164978C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Family
ID=430522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT164978D Active DE164978C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE164978C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1258823B (de) * | 1964-04-22 | 1968-01-18 | Siegle & Co G M B H G | Verfahren zur Herstellung von feindispersen, kristallisationsbestaendigen Phthalocyaninpigmenten, die die beta-Modifikation enthalten |
-
0
- DE DENDAT164978D patent/DE164978C/de active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1258823B (de) * | 1964-04-22 | 1968-01-18 | Siegle & Co G M B H G | Verfahren zur Herstellung von feindispersen, kristallisationsbestaendigen Phthalocyaninpigmenten, die die beta-Modifikation enthalten |
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