BE687453A - - Google Patents
Info
- Publication number
- BE687453A BE687453A BE687453DA BE687453A BE 687453 A BE687453 A BE 687453A BE 687453D A BE687453D A BE 687453DA BE 687453 A BE687453 A BE 687453A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/28—Modifications for introducing a time delay before switching
- H03K17/288—Modifications for introducing a time delay before switching in tube switches
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J1/44—Electric circuits
- G01J1/46—Electric circuits using a capacitor
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- 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)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Exposure In Printing And Copying (AREA)
- Projection-Type Copiers In General (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4095065A GB1099796A (en) | 1965-09-27 | 1965-09-27 | Electronic timing devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE687453A true BE687453A (en:Method) | 1967-03-01 |
Family
ID=10417403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE687453D BE687453A (en:Method) | 1965-09-27 | 1966-09-27 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE687453A (en:Method) |
| GB (1) | GB1099796A (en:Method) |
-
1965
- 1965-09-27 GB GB4095065A patent/GB1099796A/en not_active Expired
-
1966
- 1966-09-27 BE BE687453D patent/BE687453A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1099796A (en) | 1968-01-17 |