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DE2552670C3 - Circuit arrangement for igniting a gas discharge flashlight lamp - Google Patents

Circuit arrangement for igniting a gas discharge flashlight lamp

Info

Publication number
DE2552670C3
DE2552670C3 DE2552670A DE2552670A DE2552670C3 DE 2552670 C3 DE2552670 C3 DE 2552670C3 DE 2552670 A DE2552670 A DE 2552670A DE 2552670 A DE2552670 A DE 2552670A DE 2552670 C3 DE2552670 C3 DE 2552670C3
Authority
DE
Germany
Prior art keywords
flash
ignition
voltage generator
flash tube
circuit arrangement
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
DE2552670A
Other languages
German (de)
Other versions
DE2552670B2 (en
DE2552670A1 (en
Inventor
Ernst Ludwig Dr.Rer.Nat. 6200 Wiesbaden Hoene
Werner Dr.Rer.Nat. 6204 Taunusstein Rech
Josef Ing.(Grad.) 6204 Taunusstein Zimlich
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.)
Heimann 6200 Wiesbaden GmbH
Original Assignee
Heimann 6200 Wiesbaden 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
Application filed by Heimann 6200 Wiesbaden GmbH filed Critical Heimann 6200 Wiesbaden GmbH
Priority to DE2552670A priority Critical patent/DE2552670C3/en
Priority to US05/674,648 priority patent/US4054815A/en
Priority to IT22223/76A priority patent/IT1059628B/en
Priority to FR7610827A priority patent/FR2308272A1/en
Priority to JP51041746A priority patent/JPS51128177A/en
Priority to NL7603918A priority patent/NL7603918A/en
Priority to GB15266/76A priority patent/GB1547862A/en
Publication of DE2552670A1 publication Critical patent/DE2552670A1/en
Publication of DE2552670B2 publication Critical patent/DE2552670B2/en
Application granted granted Critical
Publication of DE2552670C3 publication Critical patent/DE2552670C3/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14Circuit arrangements
    • H05B41/30Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp
    • H05B41/32Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp for single flash operation
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B15/00Special procedures for taking photographs; Apparatus therefor
    • G03B15/02Illuminating scene
    • G03B15/03Combinations of cameras with lighting apparatus; Flash units
    • G03B15/05Combinations of cameras with electronic flash apparatus; Electronic flash units
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B2215/00Special procedures for taking photographs; Apparatus therefor
    • G03B2215/05Combinations of cameras with electronic flash units

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
  • Generation Of Surge Voltage And Current (AREA)

Claims (1)

Patentanspruch:Claim: Schaltungsanordnung zum Zünden einer Gasentladungs-Blitzlichtlampe (Blitzröhre) über zwei Hauptelektroden, welche parallel zur Reihenschallung eines Blitzkondensators mit einem elektronischen Ventil an einem Hochspannungsimpulse liefernden Zündspannungserzeuger liegen, wobei nach Patent 25 16 414 der Zündspannungserzeuger einen möglichst niedrigen Innenwider- stand, insbesondere einen niedrigen induktiven Anteil, aufweist, um die Energie der Hochspannungsimpulse zur adiabatischen Aufheizung des in der Blitzröhre erzeugten Plasmakanals ohne Verzögerung zur Verfügung zu stellen, gekennzeichnet durch die Verwendung der Schaltungsanordnung in Kopiergeräten zur sicheren Zündung von Lichtbützen sehr kurzer Dauer.Circuit arrangement for igniting a gas discharge flashlight lamp (Flash tube) via two main electrodes, which parallel to the series sound of a lightning capacitor with an electronic Valve are located on an ignition voltage generator delivering high-voltage pulses, wherein according to patent 25 16 414 the ignition voltage generator has the lowest possible internal resistance stood, in particular a low inductive component, to the energy of the high voltage pulses for adiabatic heating of the plasma channel generated in the flash tube without delay to make available, characterized by the use of the circuit arrangement in photocopiers for the safe ignition of light beams for a very short time. 2020th Die Patentanmeldung betrifft eine Schaltungsanordnung zum Zünden einer Gasentladungs-Blitzlichtlampe (Blitzröhre) über zwei Hauptelektroden, weiche parallel zur Reihenschaltung eines BlitzkonJensators mit einem elektronischen Ventil an einem Hochspannungsimpuls liefernden Zündspannungserzeuger liegen, wobei der Zündspannungserzeuger einen möglichst niedrigen Innenwiderstand, insbesondere einen niedrigen induktiven Anteil, aufweist, um die Energie der Hochspannungsimpulse zur adiabatis-hen A-.flieizung des in der Blitzröhre erzeugten PIasma!;anals ohne Verzögerung zur Verfugung zu stellen.The patent application relates to a circuit arrangement for igniting a gas discharge flashlight lamp (Flash tube) via two main electrodes, soft parallel to the series connection of a flash capacitor with a electronic valve on a high-voltage pulse supplying ignition voltage generator, the Ignition voltage generator has an internal resistance that is as low as possible, in particular a low inductive one Proportion, to the energy of the high-voltage impulses for the adiabatic A-.flieizung of the in the Flash tubes generated plasma!; Anals available without delay. Mit einer Anordnung nach dem Hauptpatent J5 ist unter anderem der wesentliche Vorteil einer zuverlässigen Blitzröhrenentladung auch bei verhältnismäßig niedrigen Werten der an die Blitzröhre anzulegenden Spannung erzielt. Insbesondere entfallen die mit bekannten Zündspannungserzeugern wegen deren Induktivität verbundenen Probleme hinsichtlich Zündwilligkeit der Elektronenblitzlichtröhre und einer möglichst kurzen Dauer des erzeugten Lichtblitzes.With an arrangement according to the main patent J5 is, among other things, the main advantage of a reliable flash tube discharge even with relatively achieved low values of the voltage to be applied to the flash tube. In particular, do not apply the problems associated with known ignition voltage generators because of their inductance with regard to Ignitability of the electronic flash tube and one Shortest possible duration of the generated light flash. Auf dem Gebiet der optoelektronischen Kopiertechnik setzt man zur Belichtung des Originals in zunehmendem Maß Blitzlichtröhren ein. Dabei werden Blitze sehr kurzer Zeitdauer, nämlich von höchstens einigen hundert j.t.s gefordert. Derart kurze Bliuzeiten konnten mit den bisher bekannten Anordnungen, wie sie im Hauptpatent einleitend erwähnt sind und die alle einen Zündtransformator enthalten, wegen der dabei vorhandenen Induktivitäten nur mit einem erheblichen technischen Aufwand verwirklicht werden. Ein derartiger Aufwand läßt sich vermeiden, wenn man gemäß vorliegender Erfindung eine Schaltungsanordnung nach dem Hauptpatent in Kopiergeräten zur sicheren Zündung von Lichtblitzen sehr kurzer Dauer verwendet. In the field of optoelectronic copying technology, flash tubes are increasingly being used to expose the original. Flashes of very short duration, namely a few hundred jts at most, are required. Such short flow times could only be achieved with the previously known arrangements, as mentioned in the introductory part of the main patent and all of which contain an ignition transformer, because of the inductivities present in this case, only with considerable technical effort. Such an expense can be avoided if, according to the present invention, a circuit arrangement according to the main patent is used in copiers for the reliable ignition of flashes of light of very short duration. Obereinstimmend mit dem Hauptpatent ist eine erfindungsgemäße Schaltungsanordnung bevorzugt so gestaltet, daß der Zündspannungserzeuger im wesentlichen kapazitiv ist und im Kreis der Spannungsquelle parallel zur Blitzröhre und zum Blitzkondensator liegt. Dabei enthält, ebenfalls wie im Hauptpaient, mit besonderem Vorteil der Zündspannungsgenerator einen piezoelektrischen Kristall.In accordance with the main patent, a circuit arrangement according to the invention is preferred designed so that the ignition voltage generator is essentially capacitive and in the circuit of the voltage source parallel to the flash tube and the flash capacitor lies. It contains, also as in the main paient, with A particular advantage of the ignition voltage generator is a piezoelectric crystal. Das in der Zeichnung dargestellte Ausfiihrungsbeispiel einer erfindungsgemäßen Schaltung ist vorgesehen zur Zündung von Blitzlichtröhren in Kopiergeräten. Mit 1 ist eine Gasentiadungsbiitzlichtröhre (Blitzröhre) bezeichnet, die im Kreis einer Gleichspannungsquellc 2 parallel zu einem Blitzkondensator 3 liegt. Ebensfalls parallel zur Blitzröhre 1, vom Blitzkondensator 3 jedoch durch Blockdioden 4 im Slromfluß getrennt, ist ein Zündspannungsgenerator 5 geschallet, welcher einen piezoelektrischen Kristall enthalten soll. Durch den praktisch rein kapazitiven Zündspannungsgcncrator 5 sind die Probleme, die bei bekannten Zündschallungen mit induktiven Zündspannungsgcneraioren vorhanden sind, vermieden.The exemplary embodiment shown in the drawing a circuit according to the invention is provided for igniting flash tubes in copiers. With 1 denotes a gas discharge flash tube, which is connected to a DC voltage source c 2 parallel to a lightning capacitor 3. Also parallel to flash tube 1, but from flash capacitor 3 separated by block diodes 4 in the current flow, an ignition voltage generator 5 is sounded, which one should contain piezoelectric crystal. Due to the practically purely capacitive ignition voltage generator 5 are the problems that exist with known ignition noises with inductive ignition voltage generators are avoided. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DE2552670A 1975-04-15 1975-11-24 Circuit arrangement for igniting a gas discharge flashlight lamp Expired DE2552670C3 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE2552670A DE2552670C3 (en) 1975-11-24 1975-11-24 Circuit arrangement for igniting a gas discharge flashlight lamp
US05/674,648 US4054815A (en) 1975-04-15 1976-04-07 Circuit arrangement for igniting a gas discharge flash tube
FR7610827A FR2308272A1 (en) 1975-04-15 1976-04-13 ASSEMBLY FOR LIGHTING A GAS DISCHARGE LAMP
JP51041746A JPS51128177A (en) 1975-04-15 1976-04-13 Gas discharge flash lamp ignition circuit
IT22223/76A IT1059628B (en) 1975-04-15 1976-04-13 CIRCUITAKE PROVISION FOR TRIGGERING A GAS DISCHARGE LIGHT BULB
NL7603918A NL7603918A (en) 1975-04-15 1976-04-13 CIRCUIT FOR IGNITING A GAS DISCHARGE FLASHLIGHT.
GB15266/76A GB1547862A (en) 1975-04-15 1976-04-14 Gas discharge flash tube circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2552670A DE2552670C3 (en) 1975-11-24 1975-11-24 Circuit arrangement for igniting a gas discharge flashlight lamp

Publications (3)

Publication Number Publication Date
DE2552670A1 DE2552670A1 (en) 1977-05-26
DE2552670B2 DE2552670B2 (en) 1978-03-16
DE2552670C3 true DE2552670C3 (en) 1979-01-11

Family

ID=5962497

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2552670A Expired DE2552670C3 (en) 1975-04-15 1975-11-24 Circuit arrangement for igniting a gas discharge flashlight lamp

Country Status (1)

Country Link
DE (1) DE2552670C3 (en)

Also Published As

Publication number Publication date
DE2552670B2 (en) 1978-03-16
DE2552670A1 (en) 1977-05-26

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
8320 Willingness to grant licences declared (paragraph 23)
8340 Patent of addition ceased/non-payment of fee of main patent