CA921549A - Electronic flashlight units - Google Patents

Electronic flashlight units

Info

Publication number
CA921549A
CA921549A CA112113A CA112113A CA921549A CA 921549 A CA921549 A CA 921549A CA 112113 A CA112113 A CA 112113A CA 112113 A CA112113 A CA 112113A CA 921549 A CA921549 A CA 921549A
Authority
CA
Canada
Prior art keywords
electronic flashlight
flashlight units
units
electronic
flashlight
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
Application number
CA112113A
Other versions
CA112113S (en
Inventor
Ludloff Wolfgang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MULTIBLITZ DR ING D A MANNESMANN GmbH AND CO KG
Original Assignee
MULTIBLITZ DR ING D A MANNESMANN GmbH AND CO KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE19702021880 external-priority patent/DE2021880A1/en
Priority claimed from DE19702038859 external-priority patent/DE2038859A1/en
Application filed by MULTIBLITZ DR ING D A MANNESMANN GmbH AND CO KG filed Critical MULTIBLITZ DR ING D A MANNESMANN GmbH AND CO KG
Application granted granted Critical
Publication of CA921549A publication Critical patent/CA921549A/en
Expired legal-status Critical Current

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
CA112113A 1970-05-05 1971-05-04 Electronic flashlight units Expired CA921549A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19702021880 DE2021880A1 (en) 1970-05-05 1970-05-05 Electronic flash unit
DE19702038859 DE2038859A1 (en) 1970-08-05 1970-08-05 Electronic flash unit

Publications (1)

Publication Number Publication Date
CA921549A true CA921549A (en) 1973-02-20

Family

ID=25759082

Family Applications (1)

Application Number Title Priority Date Filing Date
CA112113A Expired CA921549A (en) 1970-05-05 1971-05-04 Electronic flashlight units

Country Status (8)

Country Link
US (1) US3808500A (en)
AT (1) AT316307B (en)
CA (1) CA921549A (en)
CH (1) CH522894A (en)
ES (1) ES390865A1 (en)
FR (1) FR2093492A5 (en)
GB (1) GB1331328A (en)
NL (1) NL7106106A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2305782A1 (en) * 1973-02-07 1974-08-08 Rollei Werke Franke Heidecke ELECTRONIC FLASH UNIT FOR PHOTOGRAPHIC PURPOSES
US3976914A (en) * 1975-05-27 1976-08-24 Honeywell Inc. Series SCR gate hold-on circuit
JPS5421070A (en) * 1977-07-18 1979-02-16 West Electric Co Electronic flashing device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3229158A (en) * 1962-02-21 1966-01-11 Honeywell Inc Electronic photographic flash apparatus with photosensitive capacitor charge monitoring
US3344311A (en) * 1965-05-24 1967-09-26 Gen Electric Compensating control circuit
US3344310A (en) * 1966-01-13 1967-09-26 Gen Electric Universal lamp control circuit with high voltage producing means
US3591829A (en) * 1967-04-20 1971-07-06 Minolta Camera Kk Automatic control device for electronic flash
US3510750A (en) * 1967-11-28 1970-05-05 Masao Horino Rectified output voltage control device
DE1814856A1 (en) * 1968-12-11 1970-07-16 Loewe Opta Gmbh Electronic flash unit with a device for regulating the duration of the flash
DE1905223A1 (en) * 1969-01-28 1970-08-13 Loewe Opta Gmbh Electronic flash unit with flash duration control device

Also Published As

Publication number Publication date
NL7106106A (en) 1971-11-09
GB1331328A (en) 1973-09-26
ES390865A1 (en) 1973-07-01
CH522894A (en) 1972-05-15
FR2093492A5 (en) 1972-01-28
AT316307B (en) 1974-07-10
US3808500A (en) 1974-04-30

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