JPS55157731A - Strobe device - Google Patents
Strobe deviceInfo
- Publication number
- JPS55157731A JPS55157731A JP6639479A JP6639479A JPS55157731A JP S55157731 A JPS55157731 A JP S55157731A JP 6639479 A JP6639479 A JP 6639479A JP 6639479 A JP6639479 A JP 6639479A JP S55157731 A JPS55157731 A JP S55157731A
- Authority
- JP
- Japan
- Prior art keywords
- charging
- voltage
- capacitor
- remaining time
- strobe device
- 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.)
- Granted
Links
Abstract
PURPOSE:To obtain the strobe device which is capable of knowing the degree of comsumption of batteries as well in addition to the remaining time up to light- emittable voltage by detecting the time contributing to the specified range of charging of a main capacitor and displaying the time required till the completion of charging. CONSTITUTION:When the main capacitor C1 of the strobe device is charged by an electric power source 1, the voltage corresponding to charging voltage is generated across the resistance R2. This causes an exclusive-OR gate to generate a high level output only when the charging voltage of the capacitor C1 is in the specified voltage range and this output lets clock signals be generated from a clock circuit 5. The signals are then counted by a counter 6. According to the count value of the counter 6 of this specified voltage range, the remaining time necessary for the capacitor C1 to complete charging is displayed by corresponding light emitting diodes 24-28 by way of a decoder 12 or the like. On the other hand, it is also possible to perform the decision of the rate of consumption of batteries according to the magnitude of the remaining time by this display.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6639479A JPS55157731A (en) | 1979-05-29 | 1979-05-29 | Strobe device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6639479A JPS55157731A (en) | 1979-05-29 | 1979-05-29 | Strobe device |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP31821888A Division JPH01280741A (en) | 1988-12-16 | 1988-12-16 | Stroboscope |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55157731A true JPS55157731A (en) | 1980-12-08 |
JPH0126044B2 JPH0126044B2 (en) | 1989-05-22 |
Family
ID=13314547
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6639479A Granted JPS55157731A (en) | 1979-05-29 | 1979-05-29 | Strobe device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55157731A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60143327A (en) * | 1983-12-29 | 1985-07-29 | Ricoh Co Ltd | Battery checking device of strobe |
JPH01280741A (en) * | 1988-12-16 | 1989-11-10 | Olympus Optical Co Ltd | Stroboscope |
JP2002148319A (en) * | 2000-11-09 | 2002-05-22 | Asahi Optical Co Ltd | Stroboscope charge control device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02139654U (en) * | 1989-04-24 | 1990-11-21 |
-
1979
- 1979-05-29 JP JP6639479A patent/JPS55157731A/en active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60143327A (en) * | 1983-12-29 | 1985-07-29 | Ricoh Co Ltd | Battery checking device of strobe |
JPH01280741A (en) * | 1988-12-16 | 1989-11-10 | Olympus Optical Co Ltd | Stroboscope |
JPH0459622B2 (en) * | 1988-12-16 | 1992-09-22 | Olympus Optical Co | |
JP2002148319A (en) * | 2000-11-09 | 2002-05-22 | Asahi Optical Co Ltd | Stroboscope charge control device |
Also Published As
Publication number | Publication date |
---|---|
JPH0126044B2 (en) | 1989-05-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5421337A (en) | Display method for level check and its circuit | |
GB2011665B (en) | Electronic time piece comprising a system for detecting the end of the battery life | |
JPS55157731A (en) | Strobe device | |
US4535325A (en) | Low charge detector | |
JPS5510570A (en) | Electronic watch with counter | |
JPS56155861A (en) | Battery checker | |
JPS5376079A (en) | Voltage detecting circuit | |
JPS5483473A (en) | Electronc watch | |
JPS5335579A (en) | Battery life warning device of electronic watches | |
JPS5255567A (en) | Electronic watch with battery life indicator | |
JPS548558A (en) | Electronic watch | |
JPS5619475A (en) | Electronic timepiece with battery life display | |
JPS5323669A (en) | Small electronic device | |
JPS5669578A (en) | Electronic equipment having solar battery | |
JPS5284773A (en) | Electronic watch | |
JPS5626373A (en) | Small potable electric appliance | |
JPS54102166A (en) | Battery life display system in electronic watch | |
KR970055047A (en) | Charge time variable device | |
JPS5744737A (en) | Displaying device for power source of engine | |
JPS57179784A (en) | Wristwatch with solar cell | |
Gibbs | A SIMPLE DIGITAL RATE-METER FOR CURRENT METERS (NOTE) | |
KR19980010204U (en) | Battery level indicator | |
JPS5235670A (en) | Electronic watch | |
JPS52114371A (en) | Approximating counter for use in time measurement | |
JPS5797456A (en) | Voltage drop detecting circuit |