FR2203256B1 - - Google Patents

Info

Publication number
FR2203256B1
FR2203256B1 FR7326888A FR7326888A FR2203256B1 FR 2203256 B1 FR2203256 B1 FR 2203256B1 FR 7326888 A FR7326888 A FR 7326888A FR 7326888 A FR7326888 A FR 7326888A FR 2203256 B1 FR2203256 B1 FR 2203256B1
Authority
FR
France
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
FR7326888A
Other languages
French (fr)
Other versions
FR2203256A1 (en
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.)
Berkey Photo Inc
Original Assignee
Berkey Photo Inc
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 Berkey Photo Inc filed Critical Berkey Photo Inc
Publication of FR2203256A1 publication Critical patent/FR2203256A1/fr
Application granted granted Critical
Publication of FR2203256B1 publication Critical patent/FR2203256B1/fr
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
    • 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
    • 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
    • G03B2215/0503—Built-in units

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Stroboscope Apparatuses (AREA)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
FR7326888A 1972-10-11 1973-07-23 Expired FR2203256B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00296628A US3822393A (en) 1972-10-11 1972-10-11 Electronic strobe

Publications (2)

Publication Number Publication Date
FR2203256A1 FR2203256A1 (en) 1974-05-10
FR2203256B1 true FR2203256B1 (en) 1977-12-23

Family

ID=23142835

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7326888A Expired FR2203256B1 (en) 1972-10-11 1973-07-23

Country Status (7)

Country Link
US (1) US3822393A (en)
JP (1) JPS4974533A (en)
BE (1) BE802588A (en)
CA (1) CA1011803A (en)
DE (1) DE2347811A1 (en)
FR (1) FR2203256B1 (en)
IT (1) IT993242B (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3157702A (en) * 1960-11-16 1964-11-17 Du Pont Chemical process for preparing cyclohexanone oxime
CA1053052A (en) * 1975-04-21 1979-04-24 Edwin H. Land Camera with detachable electronic flash unit and exposure control system therefor
US4027199A (en) * 1975-06-11 1977-05-31 Xerox Corporation Flash lamp modulator system
JPS6237219Y2 (en) * 1975-07-11 1987-09-22
US4068151A (en) * 1976-11-19 1978-01-10 Polaroid Corporation Regulated strobe with hysteresis
US4270852A (en) * 1978-02-09 1981-06-02 Canon Kabushiki Kaisha Sound device incorporated camera
JPS6134516Y2 (en) * 1979-11-09 1986-10-07
JPS57205998A (en) * 1981-06-11 1982-12-17 Canon Kk Electronic flashing device
US4608605A (en) * 1983-12-06 1986-08-26 Canon Kabushiki Kaisha Image sensing apparatus
JP3120864B2 (en) * 1991-02-07 2000-12-25 旭光学工業株式会社 Flash device charge control device
JP2587890Y2 (en) * 1992-11-10 1998-12-24 株式会社ニコン Electronic flash device
AU670485B2 (en) * 1993-05-20 1996-07-18 Brk Electronics, Inc. Ambient condition detector with high intensity strobe light
US6298841B1 (en) 1995-06-19 2001-10-09 Richard T. Cheng Paintball gun and light emitting projectile-type ammunition for use therewith
CA2178362C (en) * 1995-06-19 2000-03-07 Richard T. Cheng Light emitting rigid, fracturable projectile-type marking ammunition and electronic strobe flash apparatus for air powered guns
US6411331B1 (en) 1997-02-28 2002-06-25 Hewlett-Packard Company Automatic white balance detection and correction of an image captured in a digital camera
US6291974B1 (en) * 2000-12-28 2001-09-18 Ri-Ki Wood Electronic strobe
US20080304819A1 (en) * 2007-06-08 2008-12-11 Sony Ericsson Mobile Communications Ab Thin active camera cover for an electronic device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2977524A (en) * 1959-04-20 1961-03-28 Honeywell Regulator Co Electrical power supply apparatus
DE1129618B (en) * 1960-07-09 1962-05-17 Loewe Opta Ag Circuit arrangement for electronic flash units with economy mode

Also Published As

Publication number Publication date
DE2347811A1 (en) 1974-04-25
US3822393A (en) 1974-07-02
FR2203256A1 (en) 1974-05-10
IT993242B (en) 1975-09-30
JPS4974533A (en) 1974-07-18
BE802588A (en) 1973-11-16
CA1011803A (en) 1977-06-07

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Legal Events

Date Code Title Description
ST Notification of lapse