CA1025516A - Method and arrangement for initiating a flash in an electronic flash unit having automatic exposure control - Google Patents

Method and arrangement for initiating a flash in an electronic flash unit having automatic exposure control

Info

Publication number
CA1025516A
CA1025516A CA163,396A CA163396A CA1025516A CA 1025516 A CA1025516 A CA 1025516A CA 163396 A CA163396 A CA 163396A CA 1025516 A CA1025516 A CA 1025516A
Authority
CA
Canada
Prior art keywords
flash
initiating
arrangement
exposure control
automatic exposure
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
Application number
CA163,396A
Other languages
English (en)
French (fr)
Other versions
CA163396S (en
Inventor
Heinz Engelstatter
Gotthard C. Mahlich
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.)
Braun GmbH
Original Assignee
Braun GmbH
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
Priority claimed from DE19722206773 external-priority patent/DE2206773C3/de
Application filed by Braun GmbH filed Critical Braun GmbH
Application granted granted Critical
Publication of CA1025516A publication Critical patent/CA1025516A/en
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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
  • Stroboscope Apparatuses (AREA)
  • Fixing For Electrophotography (AREA)
  • Exposure Control For Cameras (AREA)
CA163,396A 1972-02-12 1973-02-09 Method and arrangement for initiating a flash in an electronic flash unit having automatic exposure control Expired CA1025516A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722206773 DE2206773C3 (de) 1972-02-12 Elektronenblitzgerät mit automatischer Uchtmengensteuerung

Publications (1)

Publication Number Publication Date
CA1025516A true CA1025516A (en) 1978-01-31

Family

ID=5835858

Family Applications (1)

Application Number Title Priority Date Filing Date
CA163,396A Expired CA1025516A (en) 1972-02-12 1973-02-09 Method and arrangement for initiating a flash in an electronic flash unit having automatic exposure control

Country Status (16)

Country Link
US (1) US3833834A (de)
JP (1) JPS48104524A (de)
AR (1) AR197393A1 (de)
AT (1) AT336997B (de)
AU (1) AU468778B2 (de)
BE (1) BE795223A (de)
BR (1) BR7301011D0 (de)
CA (1) CA1025516A (de)
CH (1) CH553422A (de)
ES (1) ES411493A1 (de)
FR (1) FR2171798A5 (de)
GB (1) GB1366835A (de)
IT (1) IT976536B (de)
NL (1) NL7301860A (de)
SE (1) SE384743B (de)
SU (1) SU471740A3 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2450027A1 (fr) * 1979-02-20 1980-09-19 Fuji Photo Optical Co Ltd Dispositif de lampe eclair electronique automatique

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3541381A (en) * 1967-07-05 1970-11-17 Tohwa Electric Co Ltd Plug-in lighting assembly
DE1966983A1 (de) * 1968-02-13 1976-02-19 Ponder & Best Elektronenblitzgeraet mit einem elektronischen ruheschalter
US3517255A (en) * 1968-07-25 1970-06-23 Honeywell Inc Flash apparatus with automatic light termination using light activated silicon controlled rectifier
DE1905223A1 (de) * 1969-01-28 1970-08-13 Loewe Opta Gmbh Elektronenblitzgeraet mit Blitzdauer-Regelvorrichtung

Also Published As

Publication number Publication date
BE795223A (fr) 1973-05-29
JPS48104524A (de) 1973-12-27
ES411493A1 (es) 1976-01-01
CH553422A (de) 1974-08-30
NL7301860A (de) 1973-08-14
BR7301011D0 (pt) 1973-10-09
US3833834A (en) 1974-09-03
FR2171798A5 (de) 1973-09-21
SU471740A3 (ru) 1975-05-25
AR197393A1 (es) 1974-04-05
AT336997B (de) 1977-06-10
DE2206773A1 (de) 1973-08-23
GB1366835A (en) 1974-09-11
DE2206773B2 (de) 1976-09-09
SE384743B (sv) 1976-05-17
AU468778B2 (en) 1976-01-22
AU5173273A (en) 1974-08-08
ATA117673A (de) 1976-09-15
IT976536B (it) 1974-09-10

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