CA997409A - Audible alert signal for an electronic flash unit - Google Patents

Audible alert signal for an electronic flash unit

Info

Publication number
CA997409A
CA997409A CA177,336A CA177336A CA997409A CA 997409 A CA997409 A CA 997409A CA 177336 A CA177336 A CA 177336A CA 997409 A CA997409 A CA 997409A
Authority
CA
Canada
Prior art keywords
alert signal
flash unit
electronic flash
audible alert
audible
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
CA177,336A
Other languages
English (en)
Other versions
CA177336S (en
Inventor
Gerald F. Fountain
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.)
PONDER AND BEST
Original Assignee
PONDER AND BEST
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 PONDER AND BEST filed Critical PONDER AND BEST
Application granted granted Critical
Publication of CA997409A publication Critical patent/CA997409A/en
Expired 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
    • 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)
CA177,336A 1972-07-27 1973-07-25 Audible alert signal for an electronic flash unit Expired CA997409A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US27569072A 1972-07-27 1972-07-27

Publications (1)

Publication Number Publication Date
CA997409A true CA997409A (en) 1976-09-21

Family

ID=23053409

Family Applications (1)

Application Number Title Priority Date Filing Date
CA177,336A Expired CA997409A (en) 1972-07-27 1973-07-25 Audible alert signal for an electronic flash unit

Country Status (10)

Country Link
US (1) US3778672A (de)
JP (2) JPS4959638A (de)
AU (1) AU463355B2 (de)
BE (1) BE802902A (de)
CA (1) CA997409A (de)
DE (1) DE2336672B2 (de)
FR (1) FR2195014B1 (de)
GB (1) GB1431394A (de)
HK (1) HK72076A (de)
MY (1) MY7700093A (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS525644Y2 (de) * 1972-08-28 1977-02-05
JPS52146140U (de) * 1976-04-30 1977-11-05
JPS52155039U (de) * 1976-05-19 1977-11-25
US4272176A (en) * 1977-11-15 1981-06-09 Olympus Optical Co., Ltd. Camera having an acoustic indicator for generating sounds to indicate the status of certain operating conditions
JPS5910718Y2 (ja) * 1978-05-18 1984-04-03 ウエスト電気株式会社 自動調光電子閃光装置の報知装置
JPS54156630A (en) * 1978-05-31 1979-12-10 Olympus Optical Co Ltd Camera having operation display means of automatic dimmer type strobe
JPS56121022A (en) * 1980-02-27 1981-09-22 Olympus Optical Co Ltd Automatic dimming strobe device
US4494852A (en) * 1983-05-25 1985-01-22 Smith Jr Roland Photoflash detector
US5400113A (en) * 1988-03-16 1995-03-21 Nikon Corporation Control device for preventing red-eye effect on camera
AU2002211426A1 (en) * 2000-10-06 2002-04-15 Idealogix Multiplexed wireless pan and tilt camera array

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3011094A (en) * 1958-07-22 1961-11-28 Kapteyn Paul Circuit arrangement for electronic flash units with economizing operation
FR1289702A (fr) * 1961-04-11 1962-04-06 Loewe Opta Ag Appareil à éclairs pour la photographie, notamment appareil à éclairs électroniques
FR1582838A (de) * 1968-03-26 1969-10-10
DE1905223A1 (de) * 1969-01-28 1970-08-13 Loewe Opta Gmbh Elektronenblitzgeraet mit Blitzdauer-Regelvorrichtung
US3624628A (en) * 1969-11-24 1971-11-30 Mc Graw Edison Co Battery-filling apparatus with electronic signaling unit
CA930211A (en) * 1970-08-20 1973-07-17 Johnson Matthey And Mallory Limited Piezoelectric transducer and noise making device utilizing same
JPS522619B2 (de) * 1972-05-30 1977-01-22

Also Published As

Publication number Publication date
JPS53156529U (de) 1978-12-08
JPS6246178Y2 (de) 1987-12-11
DE2336672B2 (de) 1976-10-21
FR2195014B1 (de) 1978-07-21
MY7700093A (en) 1977-12-31
US3778672A (en) 1973-12-11
AU5824573A (en) 1975-04-10
AU463355B2 (en) 1975-07-24
GB1431394A (en) 1976-04-07
FR2195014A1 (de) 1974-03-01
BE802902A (fr) 1973-11-16
HK72076A (en) 1976-11-26
JPS4959638A (de) 1974-06-10
DE2336672A1 (de) 1974-02-07

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