CA983090A - Latching circuitry in a circuit for sequentially firing photoflash lamps - Google Patents

Latching circuitry in a circuit for sequentially firing photoflash lamps

Info

Publication number
CA983090A
CA983090A CA183,958A CA183958A CA983090A CA 983090 A CA983090 A CA 983090A CA 183958 A CA183958 A CA 183958A CA 983090 A CA983090 A CA 983090A
Authority
CA
Canada
Prior art keywords
circuit
latching circuitry
photoflash lamps
sequentially firing
firing
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
CA183,958A
Other versions
CA183958S (en
Inventor
Donald L. Watrous
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Application granted granted Critical
Publication of CA983090A publication Critical patent/CA983090A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q7/00—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs
    • F23Q7/02—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs for igniting solid fuel
    • 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
    • G03B15/04—Combinations of cameras with non-electronic flash apparatus; Non-electronic flash units
    • G03B15/0452—Electrical ignition means connected to the shutter
    • G03B15/0457—Ignition mechanisms for sequential ignition of flash lamps

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
CA183,958A 1972-10-24 1973-10-22 Latching circuitry in a circuit for sequentially firing photoflash lamps Expired CA983090A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US299651A US3860856A (en) 1972-10-24 1972-10-24 Latching circuitry in a circuit for sequentially firing photoflash lamps

Publications (1)

Publication Number Publication Date
CA983090A true CA983090A (en) 1976-02-03

Family

ID=23155679

Family Applications (1)

Application Number Title Priority Date Filing Date
CA183,958A Expired CA983090A (en) 1972-10-24 1973-10-22 Latching circuitry in a circuit for sequentially firing photoflash lamps

Country Status (2)

Country Link
US (1) US3860856A (en)
CA (1) CA983090A (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3518487A (en) * 1967-01-31 1970-06-30 Tokyo Shibaura Electric Co Photoflashing circuit device
US3668468A (en) * 1968-12-16 1972-06-06 Gen Electric Solid state circuits for guaranteed sequential flashing of photoflash lamp array
US3699861A (en) * 1969-07-24 1972-10-24 Polaroid Corp Flash synchronization circuit for sequential firing of an array of flashbulbs
US3618492A (en) * 1969-10-30 1971-11-09 Polaroid Corp Flash photographic system
US3676045A (en) * 1971-01-25 1972-07-11 Gen Electric Sequencing static electronic flashing circuits for photoflash lamp array

Also Published As

Publication number Publication date
US3860856A (en) 1975-01-14

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