BE507035A - - Google Patents
Info
- Publication number
- BE507035A BE507035A BE507035DA BE507035A BE 507035 A BE507035 A BE 507035A BE 507035D A BE507035D A BE 507035DA BE 507035 A BE507035 A BE 507035A
- Authority
- BE
- Belgium
- Prior art keywords
- light
- amount
- voltage
- photoelectric cell
- coupling
- Prior art date
Links
- 239000003990 capacitor Substances 0.000 claims description 17
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 230000001419 dependent effect Effects 0.000 claims description 4
- 230000000873 masking effect Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000012886 linear function Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000035945 sensitivity 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
- G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
- G03B27/80—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus in dependence upon automatic analysis of the original
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE507035A true BE507035A (pm) |
Family
ID=147121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE507035D BE507035A (pm) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE507035A (pm) |
-
0
- BE BE507035D patent/BE507035A/fr unknown
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