BE430792A - - Google Patents
Info
- Publication number
- BE430792A BE430792A BE430792DA BE430792A BE 430792 A BE430792 A BE 430792A BE 430792D A BE430792D A BE 430792DA BE 430792 A BE430792 A BE 430792A
- Authority
- BE
- Belgium
- Prior art keywords
- lamps
- perfection
- photographic printers
- lighting
- exposure time
- Prior art date
Links
- 238000009423 ventilation Methods 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 description 5
- 238000005286 illumination Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000000926 separation method 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
- G03B27/02—Exposure apparatus for contact printing
- G03B27/14—Details
- G03B27/16—Illumination arrangements, e.g. positioning of lamps, positioning of reflectors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Light Sources And Details Of Projection-Printing Devices (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE430792A true BE430792A (Direct) |
Family
ID=90710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE430792D BE430792A (Direct) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE430792A (Direct) |
-
0
- BE BE430792D patent/BE430792A/fr unknown
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