BE396697A - - Google Patents
Info
- Publication number
- BE396697A BE396697A BE396697DA BE396697A BE 396697 A BE396697 A BE 396697A BE 396697D A BE396697D A BE 396697DA BE 396697 A BE396697 A BE 396697A
- Authority
- BE
- Belgium
- Prior art keywords
- light
- copying
- discharge
- lamp
- current
- Prior art date
Links
- 238000000034 method Methods 0.000 claims description 10
- 238000005286 illumination Methods 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims description 3
- 230000010363 phase shift Effects 0.000 claims 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 6
- 238000005375 photometry Methods 0.000 description 6
- 238000004804 winding Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- ADZWSOLPGZMUMY-UHFFFAOYSA-M silver bromide Chemical compound [Ag]Br ADZWSOLPGZMUMY-UHFFFAOYSA-M 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000001228 spectrum 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 |
|---|---|
| BE396697A true BE396697A (enrdf_load_stackoverflow) |
Family
ID=63509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE396697D BE396697A (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE396697A (enrdf_load_stackoverflow) |
-
0
- BE BE396697D patent/BE396697A/fr unknown
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