JPS525644Y2 - - Google Patents

Info

Publication number
JPS525644Y2
JPS525644Y2 JP1972100203U JP10020372U JPS525644Y2 JP S525644 Y2 JPS525644 Y2 JP S525644Y2 JP 1972100203 U JP1972100203 U JP 1972100203U JP 10020372 U JP10020372 U JP 10020372U JP S525644 Y2 JPS525644 Y2 JP S525644Y2
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.)
Expired
Application number
JP1972100203U
Other languages
Japanese (ja)
Other versions
JPS4958343U (en]
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
Priority to JP1972100203U priority Critical patent/JPS525644Y2/ja
Priority to US390711A priority patent/US3919593A/en
Publication of JPS4958343U publication Critical patent/JPS4958343U/ja
Application granted granted Critical
Publication of JPS525644Y2 publication Critical patent/JPS525644Y2/ja
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

Landscapes

  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
  • Exposure Control For Cameras (AREA)
  • Stroboscope Apparatuses (AREA)
JP1972100203U 1972-08-28 1972-08-28 Expired JPS525644Y2 (en])

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1972100203U JPS525644Y2 (en]) 1972-08-28 1972-08-28
US390711A US3919593A (en) 1972-08-28 1973-08-23 Flash safety device in a flash apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1972100203U JPS525644Y2 (en]) 1972-08-28 1972-08-28

Publications (2)

Publication Number Publication Date
JPS4958343U JPS4958343U (en]) 1974-05-23
JPS525644Y2 true JPS525644Y2 (en]) 1977-02-05

Family

ID=14267733

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1972100203U Expired JPS525644Y2 (en]) 1972-08-28 1972-08-28

Country Status (2)

Country Link
US (1) US3919593A (en])
JP (1) JPS525644Y2 (en])

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4047194A (en) * 1974-05-08 1977-09-06 Canon Kabushiki Kaisha Camera system with means for automatically switching to flash operation
US3969737A (en) * 1974-08-01 1976-07-13 Eastman Kodak Company Electronic flash unit for cameras adapted to receive flashbulbs
JPS5243421A (en) * 1975-10-02 1977-04-05 Canon Inc Flash device
US4156565A (en) * 1978-03-23 1979-05-29 Polaroid Corporation Control system for flash-illuminated automatic focusing camera
FR2450028A1 (fr) * 1979-02-20 1980-09-19 Fuji Photo Optical Co Ltd Circuit de commande pour un dispositif de lampe eclair electronique automatique
JPS56122018A (en) * 1980-02-29 1981-09-25 Olympus Optical Co Ltd Power supply circuit of stroboscopic device

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3593061A (en) * 1968-02-23 1971-07-13 Nippon Kogaku Kk Apparatus for increasing the lighting of photoflash discharge lamps
US3714872A (en) * 1969-04-18 1973-02-06 Canon Kk Photographic flash exposure control system
US3819983A (en) * 1970-09-08 1974-06-25 Polaroid Corp Photoflash power supply
US3690237A (en) * 1970-09-22 1972-09-12 Zydichi Fuwa Electronic flashlight device for flashlight photography
DE2160720C3 (de) * 1970-12-08 1975-06-12 Canon K.K., Tokio Kamera mit einer BelichtungsmeBschaltung und einem Elektronenblitzgerät
JPS5419778B1 (en]) * 1971-06-18 1979-07-18
DE2152140C2 (de) * 1971-10-20 1973-11-29 Metz Apparatewerke, Inh. Paul Metz, 8510 Fuerth Elektronenblitzgerät mit auto matischer Lichtregelung
US3751714A (en) * 1971-11-24 1973-08-07 D Cooper Electronic photoflash unit
US3764849A (en) * 1972-03-24 1973-10-09 Minolta Camera Kk Electronic flash charging and triggering circuitry
US3778672A (en) * 1972-07-27 1973-12-11 Ponder & Best Audible alert signal for an electronic flash unit

Also Published As

Publication number Publication date
JPS4958343U (en]) 1974-05-23
US3919593A (en) 1975-11-11

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