BE696110A - - Google Patents
Info
- Publication number
- BE696110A BE696110A BE696110DA BE696110A BE 696110 A BE696110 A BE 696110A BE 696110D A BE696110D A BE 696110DA BE 696110 A BE696110 A BE 696110A
- 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
-
- 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
- G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
- G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
- G03B7/081—Analogue circuits
- G03B7/083—Analogue circuits for control of exposure time
-
- 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
- G03B9/00—Exposure-making shutters; Diaphragms
- G03B9/58—Means for varying duration of "open" period of shutter
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Photographic Processing Devices Using Wet Methods (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB13058/66A GB1141204A (en) | 1966-03-24 | 1966-03-24 | Photographic exposure control apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE696110A true BE696110A (en:Method) | 1967-09-01 |
Family
ID=10016032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE696110D BE696110A (en:Method) | 1966-03-24 | 1967-03-24 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3500051A (en:Method) |
| BE (1) | BE696110A (en:Method) |
| DE (1) | DE1512259B2 (en:Method) |
| GB (1) | GB1141204A (en:Method) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2274158A (en) * | 1940-04-13 | 1942-02-24 | Penther Carl Joseph | Timing device and method |
| US2579764A (en) * | 1948-12-09 | 1951-12-25 | Donald O Schwennesen | Timer for controlling the operation of photographic enlargers |
| US2666858A (en) * | 1951-06-06 | 1954-01-19 | Fotopak Corp | Photographic exposure control circuit |
| US3220304A (en) * | 1959-01-30 | 1965-11-30 | Pako Corp | Photographic printer |
-
1966
- 1966-03-24 GB GB13058/66A patent/GB1141204A/en not_active Expired
-
1967
- 1967-03-17 US US623969A patent/US3500051A/en not_active Expired - Lifetime
- 1967-03-23 DE DE1512259A patent/DE1512259B2/de active Pending
- 1967-03-24 BE BE696110D patent/BE696110A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1512259A1 (de) | 1969-08-28 |
| DE1512259B2 (de) | 1975-05-15 |
| GB1141204A (en) | 1969-01-29 |
| US3500051A (en) | 1970-03-10 |