JPS55103531A - Exposure time control circuit of camera - Google Patents
Exposure time control circuit of cameraInfo
- Publication number
- JPS55103531A JPS55103531A JP1056879A JP1056879A JPS55103531A JP S55103531 A JPS55103531 A JP S55103531A JP 1056879 A JP1056879 A JP 1056879A JP 1056879 A JP1056879 A JP 1056879A JP S55103531 A JPS55103531 A JP S55103531A
- Authority
- JP
- Japan
- Prior art keywords
- exposure time
- time control
- camera
- signals
- circuit
- 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
Abstract
PURPOSE: To achieve the higher reliability and miniaturization of the camera by changing over the ON and OFF signals of a mechanical switch and performing setting of exposure magnification and setting of manual exposure time.
CONSTITUTION: A function for automatically controlling exposure time and a function for manually controlling the same are provided. In the case of automatic exposure time control, the ON and OFF signals of a mechanical switch are supplied via changeover circuit 3 to an exposure magnification setting circuit 4, by which the exposure magnification is set in digital quantity. On the other hand, in the case of manual exposure time control, the ON and OFF signals of the switch are supplied to a manual exposure time setting circuit 8 via circuit 11, by which the manual exposure time is set in digital quantity.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1056879A JPS55103531A (en) | 1979-02-01 | 1979-02-01 | Exposure time control circuit of camera |
US06/113,003 US4306785A (en) | 1979-02-01 | 1980-01-17 | Camera exposure time control circuit |
GB8002465A GB2045957B (en) | 1979-02-01 | 1980-01-24 | Camera shutter speed control and display |
GB8032779A GB2059612B (en) | 1979-02-01 | 1980-01-24 | Shutter speed control for a camera |
FR8002208A FR2448164A1 (en) | 1979-02-01 | 1980-02-01 | LAYING TIME ADJUSTMENT CIRCUIT FOR A CAMERA |
DE3003745A DE3003745C2 (en) | 1979-02-01 | 1980-02-01 | Exposure time control circuit for a camera |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1056879A JPS55103531A (en) | 1979-02-01 | 1979-02-01 | Exposure time control circuit of camera |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55103531A true JPS55103531A (en) | 1980-08-07 |
Family
ID=11753841
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1056879A Pending JPS55103531A (en) | 1979-02-01 | 1979-02-01 | Exposure time control circuit of camera |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55103531A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6185832U (en) * | 1984-11-13 | 1986-06-05 |
-
1979
- 1979-02-01 JP JP1056879A patent/JPS55103531A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6185832U (en) * | 1984-11-13 | 1986-06-05 |
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