JPS55103532A - Operating device of camera - Google Patents
Operating device of cameraInfo
- Publication number
- JPS55103532A JPS55103532A JP1019779A JP1019779A JPS55103532A JP S55103532 A JPS55103532 A JP S55103532A JP 1019779 A JP1019779 A JP 1019779A JP 1019779 A JP1019779 A JP 1019779A JP S55103532 A JPS55103532 A JP S55103532A
- Authority
- JP
- Japan
- Prior art keywords
- aperture
- photographing lens
- preset
- variable resistances
- correcting member
- 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.)
- Pending
Links
Landscapes
- Exposure Control For Cameras (AREA)
Abstract
PURPOSE: To simplify circuit and obtain highly accurate preset aperture information by providing the aperture preset ring of photographing lens and the two variable resistances interlocking to an open aperture correcting member on the same substrate.
CONSTITUTION: The variable resistance which is adjusted according to the setting of the aperture preset ring of photographing lens and the variable resistance which is adjusted according to the open aperture correcting member of the photographing lens are disposed on the same substrate to reduce the relative errors of the both variable resistances. The substrate is disposed in the narrow spacing near the mirror and the two variable resistances are respectively interlocked to the aperture preset ring and open aperture correcting member of the photographing lens. Further the tow variable resistances are series-connected between the input and output ends of an operational amplifier so that the highly accurate preset aperture information is outputted from the operational amplifier.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1019779A JPS55103532A (en) | 1979-01-31 | 1979-01-31 | Operating device of camera |
US06/116,314 US4297013A (en) | 1979-01-31 | 1980-01-28 | Coordinating control system for camera |
DE3003275A DE3003275C2 (en) | 1979-01-31 | 1980-01-30 | Exposure control circuit for automatic or B exposure on a camera |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1019779A JPS55103532A (en) | 1979-01-31 | 1979-01-31 | Operating device of camera |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55103532A true JPS55103532A (en) | 1980-08-07 |
Family
ID=11743552
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1019779A Pending JPS55103532A (en) | 1979-01-31 | 1979-01-31 | Operating device of camera |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55103532A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58132219A (en) * | 1982-02-01 | 1983-08-06 | Nippon Kogaku Kk <Nikon> | Discriminating device for set aperture value of interchangeable lens |
-
1979
- 1979-01-31 JP JP1019779A patent/JPS55103532A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58132219A (en) * | 1982-02-01 | 1983-08-06 | Nippon Kogaku Kk <Nikon> | Discriminating device for set aperture value of interchangeable lens |
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