BE429378A - - Google Patents
Info
- Publication number
- BE429378A BE429378A BE429378DA BE429378A BE 429378 A BE429378 A BE 429378A BE 429378D A BE429378D A BE 429378DA BE 429378 A BE429378 A BE 429378A
- Authority
- BE
- Belgium
- Prior art keywords
- plate
- shutter
- machine according
- light
- movable
- Prior art date
Links
- 239000011521 glass Substances 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000012780 transparent material Substances 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
- G03B27/02—Exposure apparatus for contact printing
- G03B27/14—Details
- G03B27/18—Maintaining or producing contact pressure between original and light-sensitive material
- G03B27/22—Maintaining or producing contact pressure between original and light-sensitive material by stretching over a curved surface
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
- Projection-Type Copiers In General (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE429378A true BE429378A (enrdf_load_stackoverflow) |
Family
ID=89582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE429378D BE429378A (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE429378A (enrdf_load_stackoverflow) |
-
0
- BE BE429378D patent/BE429378A/fr unknown
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