JPS50139730A - - Google Patents
Info
- Publication number
- JPS50139730A JPS50139730A JP50042737A JP4273775A JPS50139730A JP S50139730 A JPS50139730 A JP S50139730A JP 50042737 A JP50042737 A JP 50042737A JP 4273775 A JP4273775 A JP 4273775A JP S50139730 A JPS50139730 A JP S50139730A
- 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.)
- Pending
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
- Stroboscope Apparatuses (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2417242A DE2417242A1 (de) | 1974-04-09 | 1974-04-09 | Elektronenblitzgeraet mit selbsttaetiger lichtdosierung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS50139730A true JPS50139730A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-11-08 |
Family
ID=5912581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50042737A Pending JPS50139730A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-04-09 | 1975-04-08 |
Country Status (5)
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4155031A (en) * | 1976-09-09 | 1979-05-15 | Toshiba Photo Products Co., Ltd. | Electronic flash apparatus |
| JPS5536850A (en) * | 1978-09-07 | 1980-03-14 | Canon Inc | Electronic flash device |
| DE2906880A1 (de) * | 1979-02-22 | 1980-09-04 | Braun Ag | Elektronenblitzgeraet mit automatischer lichtmengendosierung |
| US4344020A (en) * | 1979-09-04 | 1982-08-10 | West Electric Co., Ltd. | Electronic flash device capable of automatic flash duration adjustment |
| JPS56132317A (en) * | 1980-03-19 | 1981-10-16 | Minolta Camera Co Ltd | Photographing apparatus using auxiliary light |
| US4469989A (en) * | 1982-03-01 | 1984-09-04 | Fuji Koeki Corporation | Electric flash apparatus |
| US4540265A (en) * | 1983-01-24 | 1985-09-10 | Eastman Kodak Company | Energy-saving electronic flash apparatus |
| GB2134662B (en) * | 1983-01-24 | 1986-02-05 | Eastman Kodak Co | Electronic flash apparatus |
| JPS6030095A (ja) * | 1983-07-29 | 1985-02-15 | 株式会社トプコン | 閃光発光装置 |
| US4592639A (en) * | 1984-04-24 | 1986-06-03 | Olympus Optical Co., Ltd. | Electronic flash units |
| JPS6113232A (ja) * | 1984-06-28 | 1986-01-21 | Nippon Kogaku Kk <Nikon> | 電子閃光装置の発光制御装置 |
| US5875362A (en) * | 1995-12-28 | 1999-02-23 | Eastman Kodak Company | Single-use flash camera with emergency strobe or continuous illumination enhancements |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB628985A (en) * | 1946-09-24 | 1949-09-08 | Phototechnics Ltd | Improvements in cinematography |
| US3710701A (en) * | 1970-12-21 | 1973-01-16 | Canon Kk | Flash device for a camera and a photographing system with an artificial illuminator |
| JPS4890228A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1972-02-28 | 1973-11-24 |
-
1974
- 1974-04-09 DE DE2417242A patent/DE2417242A1/de not_active Ceased
-
1975
- 1975-03-04 GB GB8972/75A patent/GB1479844A/en not_active Expired
- 1975-04-01 US US05/564,160 patent/US3998534A/en not_active Expired - Lifetime
- 1975-04-08 JP JP50042737A patent/JPS50139730A/ja active Pending
-
1980
- 1980-02-07 HK HK49/80A patent/HK4980A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2417242A1 (de) | 1975-10-30 |
| GB1479844A (en) | 1977-07-13 |
| US3998534A (en) | 1976-12-21 |
| HK4980A (en) | 1980-02-15 |