DE294176C - - Google Patents
Info
- Publication number
- DE294176C DE294176C DENDAT294176D DE294176DA DE294176C DE 294176 C DE294176 C DE 294176C DE NDAT294176 D DENDAT294176 D DE NDAT294176D DE 294176D A DE294176D A DE 294176DA DE 294176 C DE294176 C DE 294176C
- Authority
- DE
- Germany
- Prior art keywords
- frame
- lens
- spindle
- coupling
- original 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.)
- Active
Links
- 239000005337 ground glass Substances 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 238000006073 displacement reaction Methods 0.000 description 5
- 210000003813 thumb Anatomy 0.000 description 3
- 238000005259 measurement Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 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
- G03B27/34—Means for automatic focusing therefor
- G03B27/36—Means for automatic focusing therefor by mechanical connections, e.g. by cam, by linkage
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Lenses (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE294176C true DE294176C (cg-RX-API-DMAC7.html) |
Family
ID=548767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT294176D Active DE294176C (cg-RX-API-DMAC7.html) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE294176C (cg-RX-API-DMAC7.html) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5834508A (en) * | 1991-07-01 | 1998-11-10 | Mitsubishi Chemical Corporation | Ketone derivatives |
| US6979697B1 (en) | 1998-08-21 | 2005-12-27 | Point Therapeutics, Inc. | Regulation of substrate activity |
-
0
- DE DENDAT294176D patent/DE294176C/de active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5834508A (en) * | 1991-07-01 | 1998-11-10 | Mitsubishi Chemical Corporation | Ketone derivatives |
| US6979697B1 (en) | 1998-08-21 | 2005-12-27 | Point Therapeutics, Inc. | Regulation of substrate activity |
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