GB1047379A - - Google Patents
Info
- Publication number
- GB1047379A GB1047379A GB1047379DA GB1047379A GB 1047379 A GB1047379 A GB 1047379A GB 1047379D A GB1047379D A GB 1047379DA GB 1047379 A GB1047379 A GB 1047379A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fade
- diaphragm
- current
- photoresistor
- sept
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000010703 silicon Substances 0.000 abstract 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
- 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
- G03B7/085—Analogue circuits for control of aperture
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Amplification And Gain Control (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1047379A true GB1047379A (enrdf_load_stackoverflow) |
Family
ID=1755410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1047379D Active GB1047379A (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1047379A (enrdf_load_stackoverflow) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3461786A (en) * | 1965-11-06 | 1969-08-19 | Copal Co Ltd | Exposure control system for photographic cameras |
| US3649109A (en) * | 1969-05-16 | 1972-03-14 | Nihon Eigakikai Kk | Automatic photographing device for cine camera |
-
0
- GB GB1047379D patent/GB1047379A/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3461786A (en) * | 1965-11-06 | 1969-08-19 | Copal Co Ltd | Exposure control system for photographic cameras |
| US3649109A (en) * | 1969-05-16 | 1972-03-14 | Nihon Eigakikai Kk | Automatic photographing device for cine camera |
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