DE2417242A1 - Elektronenblitzgeraet mit selbsttaetiger lichtdosierung - Google Patents
Elektronenblitzgeraet mit selbsttaetiger lichtdosierungInfo
- Publication number
- DE2417242A1 DE2417242A1 DE2417242A DE2417242A DE2417242A1 DE 2417242 A1 DE2417242 A1 DE 2417242A1 DE 2417242 A DE2417242 A DE 2417242A DE 2417242 A DE2417242 A DE 2417242A DE 2417242 A1 DE2417242 A1 DE 2417242A1
- Authority
- DE
- Germany
- Prior art keywords
- thyristor
- capacitor
- ignition
- switching
- resistor
- 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.)
- Ceased
Links
- 239000003990 capacitor Substances 0.000 claims description 99
- 238000010791 quenching Methods 0.000 claims description 39
- 230000000171 quenching effect Effects 0.000 claims description 39
- 230000001360 synchronised effect Effects 0.000 claims description 25
- 238000004804 winding Methods 0.000 claims description 21
- 230000000903 blocking effect Effects 0.000 claims description 6
- 230000008901 benefit Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 241000158147 Sator Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000002800 charge carrier Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2417242A DE2417242A1 (de) | 1974-04-09 | 1974-04-09 | Elektronenblitzgeraet mit selbsttaetiger lichtdosierung |
| GB8972/75A GB1479844A (en) | 1974-04-09 | 1975-03-04 | Electronic flash unit with an automatic exposure control |
| US05/564,160 US3998534A (en) | 1974-04-09 | 1975-04-01 | Electronic photographic flash unit |
| JP50042737A JPS50139730A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-04-09 | 1975-04-08 | |
| HK49/80A HK4980A (en) | 1974-04-09 | 1980-02-07 | Electronic flash unit with an automatic exposure control |
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 |
|---|---|
| DE2417242A1 true DE2417242A1 (de) | 1975-10-30 |
Family
ID=5912581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2417242A Ceased DE2417242A1 (de) | 1974-04-09 | 1974-04-09 | Elektronenblitzgeraet mit selbsttaetiger lichtdosierung |
Country Status (5)
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0018308A1 (de) * | 1979-02-22 | 1980-10-29 | Robert Bosch Gmbh | Elektronenblitzgerät mit automatischer Lichtmengendosierung und Verfahren zum Betrieb |
| DE3514319A1 (de) * | 1984-04-24 | 1985-10-24 | Olympus Optical Co., Ltd., Tokio/Tokyo | Elektronisches blitzlichtgeraet |
Families Citing this family (10)
| 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 |
| 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 |
| GB2134662B (en) * | 1983-01-24 | 1986-02-05 | Eastman Kodak Co | Electronic flash apparatus |
| US4540265A (en) * | 1983-01-24 | 1985-09-10 | Eastman Kodak Company | Energy-saving 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 |
| 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
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0018308A1 (de) * | 1979-02-22 | 1980-10-29 | Robert Bosch Gmbh | Elektronenblitzgerät mit automatischer Lichtmengendosierung und Verfahren zum Betrieb |
| DE3514319A1 (de) * | 1984-04-24 | 1985-10-24 | Olympus Optical Co., Ltd., Tokio/Tokyo | Elektronisches blitzlichtgeraet |
Also Published As
| Publication number | Publication date |
|---|---|
| US3998534A (en) | 1976-12-21 |
| JPS50139730A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-11-08 |
| HK4980A (en) | 1980-02-15 |
| GB1479844A (en) | 1977-07-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2560173C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | ||
| DE3420264C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | ||
| DE3152244C2 (de) | Verfahren und Vorrichtung zur Reduzierung von Augenblinzeln beim Photographieren | |
| DE2424182C3 (de) | Datenfotografiereinrichtung | |
| DE2352898C3 (de) | Fotografische Kamera mit einer damit kombinierten Elektronenblitzeinrichtung | |
| DE3940657A1 (de) | Blitzgeraet | |
| DE2417242A1 (de) | Elektronenblitzgeraet mit selbsttaetiger lichtdosierung | |
| DE2145490B2 (de) | Anordnung zur selbsttätigen Steuerung photographischer Blitzlichtaufnahmen | |
| DE2808642B2 (de) | Schaltungsanordnung zur Steuerung eines Elektronenblitzgeräts | |
| DE2329065C3 (de) | Elektronischer Verschluß für eine fotografische Kamera | |
| DE1937405A1 (de) | Lichtempfindliche Steuerschaltung | |
| DE1489293A1 (de) | Elektronenblitzgeraet mit einem den Aufnahmeblitz speisenden Kondensator | |
| DE2347811A1 (de) | Elektronisches blitzgeraet | |
| DE2311528C3 (de) | Anordnung zur Belichtungssteuerung für fotografische Kameras | |
| DE3108761A1 (de) | Automatische entfernungsmesseinrichtung und kombinierte automatische entfernungsmess- und blitzlichteinrichtung | |
| DE1764204B1 (de) | Elektronenbli/tzgeraet | |
| DE2721739C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | ||
| DE2520449C3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | ||
| DE3046099C2 (de) | Steuerschaltung für eine elektronische Blitzlichtanordnung | |
| DE1472580C3 (de) | Fotografische Kamera mit einer Zeitbildungseinrichtung | |
| DE2728527C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | ||
| DE3040229A1 (de) | Verfahren und einrichtung zum automatischen steuern der von einer elektronischen blitzlichtentladungseinrichtung erzeugten lichtmenge | |
| DE6602026U (de) | Photographische kamera | |
| DE2728570C2 (de) | Schaltungsanordnung für den Betrieb einer Kamera in Verbindung mit einem elektronischen Blitzgerät | |
| DE2155097C3 (de) | Schaltungsanordnung zur Beiich tungszeitsteuerung in fotografischen Kameras |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OF | Willingness to grant licences before publication of examined application | ||
| 8110 | Request for examination paragraph 44 | ||
| 8127 | New person/name/address of the applicant |
Owner name: ROLLEI-WERKE FRANKE & HEIDECKE GMBH & CO KG, 3300 |
|
| 8131 | Rejection |