JPS543530A - Photometric display circuit of cameras - Google Patents
Photometric display circuit of camerasInfo
- Publication number
- JPS543530A JPS543530A JP6834677A JP6834677A JPS543530A JP S543530 A JPS543530 A JP S543530A JP 6834677 A JP6834677 A JP 6834677A JP 6834677 A JP6834677 A JP 6834677A JP S543530 A JPS543530 A JP S543530A
- Authority
- JP
- Japan
- Prior art keywords
- cameras
- display circuit
- capacitor
- photometric display
- photometric
- 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
- Indication In Cameras, And Counting Of Exposures (AREA)
Abstract
PURPOSE: To display the accurate photometric value during repetitive photometry by subsequently repeatedly controlling capacitors in the order of charging, holding and discharging, drawing out the terminal voltage of the first capacitor and storing the same in the second capacitor.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6834677A JPS543530A (en) | 1977-06-09 | 1977-06-09 | Photometric display circuit of cameras |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6834677A JPS543530A (en) | 1977-06-09 | 1977-06-09 | Photometric display circuit of cameras |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS543530A true JPS543530A (en) | 1979-01-11 |
Family
ID=13371170
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6834677A Pending JPS543530A (en) | 1977-06-09 | 1977-06-09 | Photometric display circuit of cameras |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS543530A (en) |
-
1977
- 1977-06-09 JP JP6834677A patent/JPS543530A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS53125754A (en) | Sample hold circuit | |
JPS5330760A (en) | Switch device for condenser | |
JPS543530A (en) | Photometric display circuit of cameras | |
JPS5434840A (en) | Copying apparatus | |
JPS5317331A (en) | Controlling circuit of camera in response to signal from strobo firing device | |
JPS51115619A (en) | Dc-dc convertor circuit | |
JPS52149954A (en) | Sample holding circuit | |
JPS5220759A (en) | Timer | |
JPS52153480A (en) | Automatic range circuit | |
JPS52119057A (en) | Hold circuit | |
JPS535959A (en) | Timer circuit | |
JPS52154672A (en) | Timer device | |
JPS5434823A (en) | Input-output circuit | |
JPS5420721A (en) | Camera provided with data photographying device | |
JPS527752A (en) | Display drive circuit | |
JPS544043A (en) | Integration circuit | |
JPS52152144A (en) | Integrated circuti | |
JPS52115328A (en) | Charge and discharge circuit for condenser | |
JPS5221641A (en) | Constant-voltage circuit | |
JPS53107330A (en) | Shutter driving device | |
JPS5347756A (en) | Front-verge differentiation circuit | |
JPS51137359A (en) | Pulse width memory unit | |
JPS5423316A (en) | Control circuit for charge and discharge | |
JPS5217763A (en) | External electrode discharging device | |
JPS52109350A (en) | Memory device for analog voltage |