GB1326226A - Multiple flash device - Google Patents

Multiple flash device

Info

Publication number
GB1326226A
GB1326226A GB4861470A GB4861470A GB1326226A GB 1326226 A GB1326226 A GB 1326226A GB 4861470 A GB4861470 A GB 4861470A GB 4861470 A GB4861470 A GB 4861470A GB 1326226 A GB1326226 A GB 1326226A
Authority
GB
United Kingdom
Prior art keywords
lamp
series
circuit breaking
lamps
circuit
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
GB4861470A
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.)
Agfa Gevaert AG
Original Assignee
Agfa Gevaert AG
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 Agfa Gevaert AG filed Critical Agfa Gevaert AG
Publication of GB1326226A publication Critical patent/GB1326226A/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
    • G03B15/04—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
    • 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

Abstract

1326226 Multiple flash device AGFAGEVAERT AG 13 Oct 1970 [16 Oct 1969] 48614/70 Heading H2H A multiple flash device 5, suitable for connection to a capacitor 3 chargable from a source 1 comprises a plurality of single ignition flashlamps 6-8 the resistances of which are reduced by ignition, each lamp being connected to an associated circuit breaking element 9-11, the lamps being in series with one another and each lamp and circuit breaking element except the first being in parallel with the element associated with the preceding lamp of the series. The circuit breaking elements are preferably fuses adapted to be ruptured by the heat of combustion of the associated lamps, the fuses preferably being included each as a part of a lamp. In use, upon closing the switch 4, the capacitor 3 discharges via the lamp 6 and element 9 and causes ignition of the lamp, the other lamps being shorted out by the element 9, which subsequently presents an open circuit owing to its rupture. Upon closing the switch 4 on a second occasion, the capacitor discharges through the lamp 7, via the previously ignited lamp 6, and the element 10. A testing circuit is provided whereby upon closure of a switch 12, a lamp 13 is ignited and the element 11 and therefore the lamp 8 are unused. In a modification, Fig. 2 (not shown), each lamp (20)-(22) is connected in parallel with the circuit breaking element (23)-(25) of the preceding lamp (19)-(21), the lamps being connected in series and also the circuit breaking elements being in series with one another. A series test circuit comprising a source, switch and lamp (2)-(29) is provided in series with the last circuit breaking element (26) of the series.
GB4861470A 1969-10-16 1970-10-13 Multiple flash device Expired GB1326226A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691952049 DE1952049A1 (en) 1969-10-16 1969-10-16 Multiple flash device

Publications (1)

Publication Number Publication Date
GB1326226A true GB1326226A (en) 1973-08-08

Family

ID=5748316

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4861470A Expired GB1326226A (en) 1969-10-16 1970-10-13 Multiple flash device

Country Status (5)

Country Link
US (1) US3692995A (en)
CH (1) CH535528A (en)
DE (1) DE1952049A1 (en)
FR (1) FR2066032A5 (en)
GB (1) GB1326226A (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7306019A (en) * 1973-05-01 1974-11-05
JPS5198018A (en) * 1975-02-25 1976-08-28 Satsueisocho senkoroshutsushisutemu
US4128858A (en) * 1975-04-14 1978-12-05 General Electric Company Multiple flashlamp system
US4040777A (en) * 1975-04-28 1977-08-09 General Electric Company Flash lamp array having shorting lamps
NL7506653A (en) * 1975-06-05 1976-12-07 Philips Nv FLASH PACK EQUIPPED WITH AT LEAST TWO COMBUSTION FLASHLIGHTS.
US4017728A (en) * 1975-09-17 1977-04-12 Gte Sylvania Incorporated Multilamp photoflash unit having radiant-energy-activated quick-disconnect switch
US4064431A (en) * 1976-07-06 1977-12-20 General Electric Company Last-flash indicator for photoflash array
US4158879A (en) * 1976-07-26 1979-06-19 Polaroid Corporation Flip flash having final flash signal
US4093979A (en) * 1976-08-04 1978-06-06 General Electric Company Multiple flash array
US4048487A (en) * 1976-09-08 1977-09-13 General Electric Company Last-flash indicator switch in photoflash array
US4097220A (en) * 1976-09-16 1978-06-27 General Electric Company Flash lamp array having shorting lamps
JPS5352418A (en) * 1976-10-19 1978-05-12 Gen Electric Flash lamp array
US4329140A (en) * 1979-07-19 1982-05-11 Polaroid Corporation Multiple flash arrangement with redundant fuse arrangement

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2976511A (en) * 1958-09-22 1961-03-21 Kalimar Inc Photographic flash guns
US3562508A (en) * 1966-02-18 1971-02-09 Agfa Gevaert Ag Flash unit
US3532931A (en) * 1968-12-16 1970-10-06 Gen Electric Photoflash assembly for sequentially flashing lamps utilizing voltage and current responsive devices

Also Published As

Publication number Publication date
CH535528A (en) 1973-03-31
FR2066032A5 (en) 1971-08-06
US3692995A (en) 1972-09-19
DE1952049A1 (en) 1971-04-29

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed