JPS525644Y2 - - Google Patents
Info
- Publication number
- JPS525644Y2 JPS525644Y2 JP1972100203U JP10020372U JPS525644Y2 JP S525644 Y2 JPS525644 Y2 JP S525644Y2 JP 1972100203 U JP1972100203 U JP 1972100203U JP 10020372 U JP10020372 U JP 10020372U JP S525644 Y2 JPS525644 Y2 JP S525644Y2
- Authority
- JP
- Japan
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/30—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp
- H05B41/32—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp for single flash operation
- H05B41/325—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp for single flash operation by measuring the incident light
Landscapes
- Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
- Exposure Control For Cameras (AREA)
- Stroboscope Apparatuses (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1972100203U JPS525644Y2 (https=) | 1972-08-28 | 1972-08-28 | |
| US390711A US3919593A (en) | 1972-08-28 | 1973-08-23 | Flash safety device in a flash apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1972100203U JPS525644Y2 (https=) | 1972-08-28 | 1972-08-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4958343U JPS4958343U (https=) | 1974-05-23 |
| JPS525644Y2 true JPS525644Y2 (https=) | 1977-02-05 |
Family
ID=14267733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1972100203U Expired JPS525644Y2 (https=) | 1972-08-28 | 1972-08-28 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3919593A (https=) |
| JP (1) | JPS525644Y2 (https=) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4047194A (en) * | 1974-05-08 | 1977-09-06 | Canon Kabushiki Kaisha | Camera system with means for automatically switching to flash operation |
| US3969737A (en) * | 1974-08-01 | 1976-07-13 | Eastman Kodak Company | Electronic flash unit for cameras adapted to receive flashbulbs |
| JPS5243421A (en) * | 1975-10-02 | 1977-04-05 | Canon Inc | Flash device |
| US4156565A (en) * | 1978-03-23 | 1979-05-29 | Polaroid Corporation | Control system for flash-illuminated automatic focusing camera |
| FR2450028A1 (fr) * | 1979-02-20 | 1980-09-19 | Fuji Photo Optical Co Ltd | Circuit de commande pour un dispositif de lampe eclair electronique automatique |
| JPS56122018A (en) * | 1980-02-29 | 1981-09-25 | Olympus Optical Co Ltd | Power supply circuit of stroboscopic device |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3593061A (en) * | 1968-02-23 | 1971-07-13 | Nippon Kogaku Kk | Apparatus for increasing the lighting of photoflash discharge lamps |
| US3714872A (en) * | 1969-04-18 | 1973-02-06 | Canon Kk | Photographic flash exposure control system |
| US3819983A (en) * | 1970-09-08 | 1974-06-25 | Polaroid Corp | Photoflash power supply |
| US3690237A (en) * | 1970-09-22 | 1972-09-12 | Zydichi Fuwa | Electronic flashlight device for flashlight photography |
| DE2160720C3 (de) * | 1970-12-08 | 1975-06-12 | Canon K.K., Tokio | Kamera mit einer BelichtungsmeBschaltung und einem Elektronenblitzgerät |
| JPS5419778B1 (https=) * | 1971-06-18 | 1979-07-18 | ||
| DE2152140C2 (de) * | 1971-10-20 | 1973-11-29 | Metz Apparatewerke, Inh. Paul Metz, 8510 Fuerth | Elektronenblitzgerät mit auto matischer Lichtregelung |
| US3751714A (en) * | 1971-11-24 | 1973-08-07 | D Cooper | Electronic photoflash unit |
| US3764849A (en) * | 1972-03-24 | 1973-10-09 | Minolta Camera Kk | Electronic flash charging and triggering circuitry |
| US3778672A (en) * | 1972-07-27 | 1973-12-11 | Ponder & Best | Audible alert signal for an electronic flash unit |
-
1972
- 1972-08-28 JP JP1972100203U patent/JPS525644Y2/ja not_active Expired
-
1973
- 1973-08-23 US US390711A patent/US3919593A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4958343U (https=) | 1974-05-23 |
| US3919593A (en) | 1975-11-11 |