FR2228342A1 - - Google Patents

Info

Publication number
FR2228342A1
FR2228342A1 FR7415051A FR7415051A FR2228342A1 FR 2228342 A1 FR2228342 A1 FR 2228342A1 FR 7415051 A FR7415051 A FR 7415051A FR 7415051 A FR7415051 A FR 7415051A FR 2228342 A1 FR2228342 A1 FR 2228342A1
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.)
Granted
Application number
FR7415051A
Other languages
French (fr)
Other versions
FR2228342B3 (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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2228342A1 publication Critical patent/FR2228342A1/fr
Application granted granted Critical
Publication of FR2228342B3 publication Critical patent/FR2228342B3/fr
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K5/00—Light sources using charges of combustible material, e.g. illuminating flash devices
    • F21K5/02—Light sources using charges of combustible material, e.g. illuminating flash devices ignited in a non-disrupting container, e.g. photo-flash bulb
    • F21K5/023—Ignition devices in photo flash bulbs
    • F21K5/026—Ignition devices in photo flash bulbs using mechanical firing, e.g. percussion of a fulminating charge
    • 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)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Resistance Heating (AREA)
  • Air Bags (AREA)
FR7415051A 1973-05-01 1974-04-30 Expired FR2228342B3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7306019A NL7306019A (en) 1973-05-01 1973-05-01

Publications (2)

Publication Number Publication Date
FR2228342A1 true FR2228342A1 (en) 1974-11-29
FR2228342B3 FR2228342B3 (en) 1977-03-04

Family

ID=19818762

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7415051A Expired FR2228342B3 (en) 1973-05-01 1974-04-30

Country Status (9)

Country Link
US (1) US3918884A (en)
JP (1) JPS5032938A (en)
BE (1) BE814429A (en)
CA (1) CA1040700A (en)
DE (1) DE2418838A1 (en)
FR (1) FR2228342B3 (en)
GB (1) GB1430706A (en)
IT (1) IT1010134B (en)
NL (1) NL7306019A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4048487A (en) * 1976-09-08 1977-09-13 General Electric Company Last-flash indicator switch in photoflash array

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3443875A (en) * 1965-10-21 1969-05-13 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Series flash device
NL145033B (en) * 1966-04-02 1975-02-17 Philips Nv COMBUSTION FLASHLIGHT.
US3518487A (en) * 1967-01-31 1970-06-30 Tokyo Shibaura Electric Co Photoflashing circuit device
BE757009A (en) * 1969-10-03 1971-04-02 Philips Nv DEVICE ALLOWING SUCCESSIVE LIGHTING OF SEVERAL ACOMBUSTION LIGHTS
DE1952049A1 (en) * 1969-10-16 1971-04-29 Agfa Gevaert Ag Multiple flash device
US3619715A (en) * 1970-05-21 1971-11-09 Gen Electric Resistor circuit for sequentially flashing photoflash lamps
US3864606A (en) * 1972-10-24 1975-02-04 Gen Electric Compensated sequencing circuit for firing photoflash lamps

Also Published As

Publication number Publication date
CA1040700A (en) 1978-10-17
DE2418838A1 (en) 1974-11-21
GB1430706A (en) 1976-04-07
IT1010134B (en) 1977-01-10
FR2228342B3 (en) 1977-03-04
JPS5032938A (en) 1975-03-29
BE814429A (en) 1974-10-30
NL7306019A (en) 1974-11-05
US3918884A (en) 1975-11-11

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