JPS566221A - Strobe device of camera - Google Patents
Strobe device of cameraInfo
- Publication number
- JPS566221A JPS566221A JP8163979A JP8163979A JPS566221A JP S566221 A JPS566221 A JP S566221A JP 8163979 A JP8163979 A JP 8163979A JP 8163979 A JP8163979 A JP 8163979A JP S566221 A JPS566221 A JP S566221A
- Authority
- JP
- Japan
- Prior art keywords
- information
- terminals
- strobe device
- camera
- pulse
- 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
- Stroboscope Apparatuses (AREA)
- Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
Abstract
PURPOSE:To achieve the reduction in the number of the contact terminals with cameras by converting the information signal to be supplied to the camera side to the pulse signal of changing frequencies, etc. according to information by a pulse signal converting circuit, etc. CONSTITUTION:When the electric switch source SW1 of the strobe device is closed, a constant voltage is generated by way of a DC-DC converter 1 and a Zener diode ZD3 and the mounting of the strobe device is checked on the camera side. On the other hand, when a main capacitor C1 charges and a transistor Q2 for pulse converting circuit conducts owing to lighting of a light emitting luminous body NC1 for display, the voltage across terminals G1 and L1 becomes other constant level. The output frequency of an oscillating circuit 3 is changed by a variable resistance VR2 cooperating with the setting of the variable resistance VR1 of an integral network 2 corresponding to aperture value and the pulses of different frequencies according to information are supplied from the terminals G1, L1 to the camera by way of the transistor Q1 of a pulse converting circuit, thus various sets of information are transmitted by the same terminals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8163979A JPS566221A (en) | 1979-06-28 | 1979-06-28 | Strobe device of camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8163979A JPS566221A (en) | 1979-06-28 | 1979-06-28 | Strobe device of camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS566221A true JPS566221A (en) | 1981-01-22 |
Family
ID=13751903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8163979A Pending JPS566221A (en) | 1979-06-28 | 1979-06-28 | Strobe device of camera |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS566221A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57155525A (en) * | 1981-03-23 | 1982-09-25 | Nippon Kogaku Kk <Nikon> | Signal transmitting and receiving device between camera and its accessory |
| JPS60140205A (en) * | 1983-12-28 | 1985-07-25 | Ocean Cable Co Ltd | Terminal forming method of optical fiber cable |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52156618A (en) * | 1976-06-23 | 1977-12-27 | Nippon Chemical Ind | Flash camera controller |
-
1979
- 1979-06-28 JP JP8163979A patent/JPS566221A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52156618A (en) * | 1976-06-23 | 1977-12-27 | Nippon Chemical Ind | Flash camera controller |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57155525A (en) * | 1981-03-23 | 1982-09-25 | Nippon Kogaku Kk <Nikon> | Signal transmitting and receiving device between camera and its accessory |
| JPS60140205A (en) * | 1983-12-28 | 1985-07-25 | Ocean Cable Co Ltd | Terminal forming method of optical fiber cable |
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