DE4103100C2 - - Google Patents

Info

Publication number
DE4103100C2
DE4103100C2 DE4103100A DE4103100A DE4103100C2 DE 4103100 C2 DE4103100 C2 DE 4103100C2 DE 4103100 A DE4103100 A DE 4103100A DE 4103100 A DE4103100 A DE 4103100A DE 4103100 C2 DE4103100 C2 DE 4103100C2
Authority
DE
Germany
Prior art keywords
flash
voltage
gate
circuit
igbt
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.)
Revoked
Application number
DE4103100A
Other languages
German (de)
English (en)
Other versions
DE4103100A1 (de
Inventor
Akio Fukuoka Jp Uenishi
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of DE4103100A1 publication Critical patent/DE4103100A1/de
Application granted granted Critical
Publication of DE4103100C2 publication Critical patent/DE4103100C2/de
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)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
  • Stroboscope Apparatuses (AREA)
DE4103100A 1990-02-05 1991-02-01 Elektronische blitzeinrichtung Granted DE4103100A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2026821A JPH03230136A (ja) 1990-02-05 1990-02-05 電子閃光装置

Publications (2)

Publication Number Publication Date
DE4103100A1 DE4103100A1 (de) 1991-08-08
DE4103100C2 true DE4103100C2 (OSRAM) 1993-03-11

Family

ID=12203943

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4103100A Granted DE4103100A1 (de) 1990-02-05 1991-02-01 Elektronische blitzeinrichtung

Country Status (3)

Country Link
US (1) US5184171A (OSRAM)
JP (1) JPH03230136A (OSRAM)
DE (1) DE4103100A1 (OSRAM)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03286619A (ja) * 1990-04-02 1991-12-17 Mitsubishi Electric Corp 絶縁ゲート形半導体装置のゲート駆動回路および該回路を用いたフラッシュ制御装置
US5426306A (en) * 1993-10-21 1995-06-20 Associated Universities, Inc. Fast repetition rate (FRR) fluorometer and method for measuring fluorescence and photosynthetic parameters
JPH07245187A (ja) * 1994-03-07 1995-09-19 Olympus Optical Co Ltd ストロボ装置
US5717962A (en) * 1994-07-19 1998-02-10 Olympus Optical Co., Ltd. Electric flash apparatus using MOS controlled thyristor
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
US6121053A (en) * 1997-12-10 2000-09-19 Brookhaven Science Associates Multiple protocol fluorometer and method
US5962984A (en) * 1998-01-12 1999-10-05 Morris W. Mashburn, III High intensity lighting circuit
TW494267B (en) * 1999-11-16 2002-07-11 Fuji Photo Film Co Ltd Flashlight generating circuit

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54128734A (en) * 1978-03-29 1979-10-05 Minolta Camera Co Ltd Flash discharger enabled to effect preparatory flash
US4184756A (en) * 1978-10-13 1980-01-22 Polaroid Corporation Strobe without primary storage capacitor
JPS56154717A (en) * 1980-04-30 1981-11-30 Olympus Optical Co Ltd Automatic exposure control circuit of camera
US4847538A (en) * 1984-08-18 1989-07-11 West Electric Company, Ltd. Electronic flash equipment
US4697906A (en) * 1985-09-27 1987-10-06 West Electric Company, Ltd. Electric flash device
JPS6417033A (en) * 1987-07-10 1989-01-20 Minolta Camera Kk Automatic dimming system flash device
JP2548319B2 (ja) * 1988-08-03 1996-10-30 ウエスト電気株式会社 ストロボ装置
JP2902703B2 (ja) * 1990-01-29 1999-06-07 オリンパス光学工業株式会社 調光式ストロボの制御回路

Also Published As

Publication number Publication date
DE4103100A1 (de) 1991-08-08
JPH03230136A (ja) 1991-10-14
US5184171A (en) 1993-02-02

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8363 Opposition against the patent
8320 Willingness to grant licences declared (paragraph 23)
8331 Complete revocation