GB1374247A - - Google Patents
Info
- Publication number
- GB1374247A GB1374247A GB2016374A GB2016374A GB1374247A GB 1374247 A GB1374247 A GB 1374247A GB 2016374 A GB2016374 A GB 2016374A GB 2016374 A GB2016374 A GB 2016374A GB 1374247 A GB1374247 A GB 1374247A
- Authority
- GB
- United Kingdom
- Prior art keywords
- capacitor
- thyristor
- tube
- turns
- photo
- 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.)
- 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
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
- G03B15/02—Illuminating scene
- G03B15/03—Combinations of cameras with lighting apparatus; Flash units
- G03B15/05—Combinations of cameras with electronic flash apparatus; Electronic flash units
-
- 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
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B2215/00—Special procedures for taking photographs; Apparatus therefor
- G03B2215/05—Combinations of cameras with electronic flash units
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Stroboscope Apparatuses (AREA)
- Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
- Exposure Control For Cameras (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE93116 | 1970-08-24 | ||
BE94290 | 1970-09-23 | ||
BE100618 | 1971-03-08 | ||
BE102057 | 1971-04-09 | ||
BE104488 | 1971-06-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1374247A true GB1374247A (US07922777-20110412-C00004.png) | 1974-11-20 |
Family
ID=27507527
Family Applications (5)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2016474A Expired GB1374248A (en) | 1970-08-24 | 1971-08-24 | Control systems |
GB3970471A Expired GB1374245A (en) | 1970-08-24 | 1971-08-24 | Electronic photoflash |
GB1991974A Expired GB1374246A (en) | 1970-08-24 | 1971-08-24 | Electric switch |
GB2016374A Expired GB1374247A (US07922777-20110412-C00004.png) | 1970-08-24 | 1971-08-24 | |
GB2022174A Expired GB1374249A (en) | 1970-08-24 | 1971-08-24 | Electronic photoflash |
Family Applications Before (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2016474A Expired GB1374248A (en) | 1970-08-24 | 1971-08-24 | Control systems |
GB3970471A Expired GB1374245A (en) | 1970-08-24 | 1971-08-24 | Electronic photoflash |
GB1991974A Expired GB1374246A (en) | 1970-08-24 | 1971-08-24 | Electric switch |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2022174A Expired GB1374249A (en) | 1970-08-24 | 1971-08-24 | Electronic photoflash |
Country Status (3)
Country | Link |
---|---|
JP (11) | JPS524933B1 (US07922777-20110412-C00004.png) |
DE (5) | DE2142081B2 (US07922777-20110412-C00004.png) |
GB (5) | GB1374248A (US07922777-20110412-C00004.png) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2134662A (en) * | 1983-01-24 | 1984-08-15 | Eastman Kodak Co | Electronic flash apparatus |
US4540265A (en) * | 1983-01-24 | 1985-09-10 | Eastman Kodak Company | Energy-saving electronic flash apparatus |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2738984A1 (de) * | 1977-08-30 | 1979-03-15 | Rollei Werke Franke Heidecke | Elektronenblitzgeraet fuer fotografische aufnahmezwecke |
JPS55134823A (en) * | 1979-04-06 | 1980-10-21 | Olympus Optical Co Ltd | Strobe light emission control system |
JPS63170484U (US07922777-20110412-C00004.png) * | 1987-04-23 | 1988-11-07 | ||
EP1083458A3 (en) * | 1999-09-07 | 2005-07-27 | Konica Corporation | Lens-fitted film unit with strobe circuit |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1907059B2 (de) * | 1968-02-13 | 1973-04-19 | Lumina SPRL, Brüssel | Elektronenblitzgeraet |
US3519879A (en) * | 1968-07-25 | 1970-07-07 | Honeywell Inc | Flash apparatus with automatic light termination having gating and anticipation means |
JPS5038616Y2 (US07922777-20110412-C00004.png) * | 1971-09-01 | 1975-11-07 | ||
JPS5149410A (ja) * | 1974-10-25 | 1976-04-28 | Hitachi Ltd | Tatejikugatadendoki |
-
1971
- 1971-08-21 DE DE19712142081 patent/DE2142081B2/de not_active Ceased
- 1971-08-21 DE DE19712166610 patent/DE2166610A1/de active Pending
- 1971-08-21 DE DE2166611A patent/DE2166611B2/de not_active Withdrawn
- 1971-08-21 DE DE2166612*A patent/DE2166612B2/de not_active Ceased
- 1971-08-21 DE DE2166613*A patent/DE2166613B2/de not_active Ceased
- 1971-08-24 JP JP7164681A patent/JPS524933B1/ja active Pending
- 1971-08-24 GB GB2016474A patent/GB1374248A/en not_active Expired
- 1971-08-24 GB GB3970471A patent/GB1374245A/en not_active Expired
- 1971-08-24 GB GB1991974A patent/GB1374246A/en not_active Expired
- 1971-08-24 GB GB2016374A patent/GB1374247A/en not_active Expired
- 1971-08-24 GB GB2022174A patent/GB1374249A/en not_active Expired
-
1974
- 1974-06-20 JP JP49071817A patent/JPS50112026A/ja active Pending
- 1974-06-20 JP JP49071818A patent/JPS50112027A/ja active Pending
- 1974-06-20 JP JP7182174A patent/JPS544849B2/ja not_active Expired
- 1974-06-20 JP JP49071822A patent/JPS50112031A/ja active Pending
- 1974-06-20 JP JP49071819A patent/JPS629890B2/ja not_active Expired
- 1974-06-20 JP JP49071824A patent/JPS50112032A/ja active Pending
- 1974-06-20 JP JP7181674A patent/JPS5427140B2/ja not_active Expired
- 1974-06-20 JP JP49071820A patent/JPS50112029A/ja active Pending
- 1974-06-20 JP JP7182374A patent/JPS5410099B2/ja not_active Expired
-
1978
- 1978-12-08 JP JP1978169777U patent/JPS54102119U/ja active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2134662A (en) * | 1983-01-24 | 1984-08-15 | Eastman Kodak Co | Electronic flash apparatus |
US4540265A (en) * | 1983-01-24 | 1985-09-10 | Eastman Kodak Company | Energy-saving electronic flash apparatus |
Also Published As
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |