JPH02686B2 - - Google Patents

Info

Publication number
JPH02686B2
JPH02686B2 JP54066482A JP6648279A JPH02686B2 JP H02686 B2 JPH02686 B2 JP H02686B2 JP 54066482 A JP54066482 A JP 54066482A JP 6648279 A JP6648279 A JP 6648279A JP H02686 B2 JPH02686 B2 JP H02686B2
Authority
JP
Japan
Prior art keywords
power
switch
battery
auxiliary capacitor
power supply
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 - Lifetime
Application number
JP54066482A
Other languages
English (en)
Japanese (ja)
Other versions
JPS55157732A (en
Inventor
Hiroshi Iwata
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.)
West Electric Co Ltd
Original Assignee
West Electric Co Ltd
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 by West Electric Co Ltd filed Critical West Electric Co Ltd
Priority to JP6648279A priority Critical patent/JPS55157732A/ja
Priority to US06/149,986 priority patent/US4310785A/en
Priority to DE3020133A priority patent/DE3020133C2/de
Publication of JPS55157732A publication Critical patent/JPS55157732A/ja
Publication of JPH02686B2 publication Critical patent/JPH02686B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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)
  • Dc-Dc Converters (AREA)
JP6648279A 1979-05-29 1979-05-29 Electronic flash device Granted JPS55157732A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP6648279A JPS55157732A (en) 1979-05-29 1979-05-29 Electronic flash device
US06/149,986 US4310785A (en) 1979-05-29 1980-05-15 Electronic photographic flash apparatus
DE3020133A DE3020133C2 (de) 1979-05-29 1980-05-27 Elektronisches Blitzlichtgerät

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6648279A JPS55157732A (en) 1979-05-29 1979-05-29 Electronic flash device

Publications (2)

Publication Number Publication Date
JPS55157732A JPS55157732A (en) 1980-12-08
JPH02686B2 true JPH02686B2 (en, 2012) 1990-01-09

Family

ID=13317039

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6648279A Granted JPS55157732A (en) 1979-05-29 1979-05-29 Electronic flash device

Country Status (3)

Country Link
US (1) US4310785A (en, 2012)
JP (1) JPS55157732A (en, 2012)
DE (1) DE3020133C2 (en, 2012)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4864340A (en) * 1986-12-15 1989-09-05 Canon Kabushiki Kaisha Remote control device having an energy source charged by a camera
US6009281A (en) * 1987-07-10 1999-12-28 Minolta Co., Ltd. Flash device
JPS6417033A (en) * 1987-07-10 1989-01-20 Minolta Camera Kk Automatic dimming system flash device
JPH01123843U (en, 2012) * 1988-02-13 1989-08-23
US5347200A (en) * 1993-02-26 1994-09-13 Multi Electric Mfg. Inc. Strobe light switching arrangement with reduced transient currents
FR2749988A1 (fr) * 1996-06-14 1997-12-19 Philips Electronics Nv Dispositif d'accumulateurs pour un appareil electrique et/ou electronique et terminal de telecommunication comportant un tel dispositif
HK1052677B (zh) * 2000-03-31 2009-05-22 Inventio Ag 降低电梯系统供电联接的功率之设施和方法
US9441799B2 (en) * 2014-02-18 2016-09-13 Andrew J. Miller Electronic circuits to extend battery life time
US11300988B2 (en) * 2018-08-07 2022-04-12 Battery Savers Inc. Method and system to boost battery voltage

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2877385A (en) * 1957-08-21 1959-03-10 Honeywell Regulator Co Electric system
GB1452284A (en) * 1972-10-13 1976-10-13 West Electric Co Photographic flash apparatus
US4256994A (en) * 1978-10-07 1981-03-17 Canon Kabushiki Kaisha Actuating circuit for light measuring circuit in electronic flash device

Also Published As

Publication number Publication date
US4310785A (en) 1982-01-12
JPS55157732A (en) 1980-12-08
DE3020133A1 (de) 1980-12-04
DE3020133C2 (de) 1987-03-19

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