NL7007869A - - Google Patents

Info

Publication number
NL7007869A
NL7007869A NL7007869A NL7007869A NL7007869A NL 7007869 A NL7007869 A NL 7007869A NL 7007869 A NL7007869 A NL 7007869A NL 7007869 A NL7007869 A NL 7007869A NL 7007869 A NL7007869 A NL 7007869A
Authority
NL
Netherlands
Application number
NL7007869A
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
Application filed filed Critical
Publication of NL7007869A publication Critical patent/NL7007869A/xx

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14Circuit arrangements
    • H05B41/30Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp
    • H05B41/32Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp for single flash operation
    • H05B41/325Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp for single flash operation by measuring the incident light
NL7007869A 1969-06-03 1970-05-29 NL7007869A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691928157 DE1928157A1 (en) 1969-06-03 1969-06-03 Circuit arrangement for electronic flash units with useful flash duration regulated as a function of the amount of reflected light

Publications (1)

Publication Number Publication Date
NL7007869A true NL7007869A (en) 1970-12-07

Family

ID=5735916

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7007869A NL7007869A (en) 1969-06-03 1970-05-29

Country Status (9)

Country Link
US (1) US3662213A (en)
JP (1) JPS493582B1 (en)
BE (1) BE751424A (en)
CH (1) CH537594A (en)
DE (1) DE1928157A1 (en)
FR (1) FR2045812A1 (en)
GB (1) GB1307244A (en)
NL (1) NL7007869A (en)
SE (1) SE359999B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3787704A (en) * 1970-02-20 1974-01-22 Loewe Opta Gmbh Electronic flash unit with controlled light energy
US3737721A (en) * 1971-01-22 1973-06-05 Honeywell Inc Computer flash with remote sensor and two-wire control of flash firing and quench
DE2422237B2 (en) * 1974-05-08 1977-08-18 Braun Ag, 6000 Frankfurt LIGHT CONTROLLED FLASHING DEVICE
SE387497B (en) * 1975-06-19 1976-09-06 Ericsson Telefon Ab L M PULSE GENERATOR
DE4029203C2 (en) * 1990-09-14 1995-04-20 Hella Kg Hueck & Co Arc extinguishing device for flashes for aircraft
KR20020024552A (en) * 2000-09-25 2002-03-30 무네유키 가코우 Flash device, lens-fitted photo film unit, camera, and producing method for the same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3293449A (en) * 1963-06-24 1966-12-20 Gen Electric Solid state thyratron replacement
US3509422A (en) * 1967-10-31 1970-04-28 Research Corp Automatic photographic fill-in flash circuit
DE1764204B1 (en) * 1968-04-23 1972-01-05 Bosch Photokino Gmbh ELECTRONIC BLOCKING UNIT

Also Published As

Publication number Publication date
US3662213A (en) 1972-05-09
FR2045812A1 (en) 1971-03-05
SE359999B (en) 1973-09-10
JPS493582B1 (en) 1974-01-26
GB1307244A (en) 1973-02-14
CH537594A (en) 1973-05-31
BE751424A (en) 1970-12-03
DE1928157A1 (en) 1970-12-10

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