DE897199C - Flash tubes with narrowed discharge path for photographic purposes - Google Patents

Flash tubes with narrowed discharge path for photographic purposes

Info

Publication number
DE897199C
DE897199C DEM13108A DEM0013108A DE897199C DE 897199 C DE897199 C DE 897199C DE M13108 A DEM13108 A DE M13108A DE M0013108 A DEM0013108 A DE M0013108A DE 897199 C DE897199 C DE 897199C
Authority
DE
Germany
Prior art keywords
discharge path
flash tubes
photographic purposes
discharge
narrowed discharge
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
DEM13108A
Other languages
German (de)
Inventor
Dieter Dr-Ing Mannesmann
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEM13108A priority Critical patent/DE897199C/en
Application granted granted Critical
Publication of DE897199C publication Critical patent/DE897199C/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00Gas-discharge or vapour-discharge lamps
    • H01J61/02Details
    • H01J61/04Electrodes; Screens; Shields
    • H01J61/10Shields, screens, or guides for influencing the discharge
    • 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)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)

Description

Die Erfindung bezieht sich auf eine Blitzröhre für photographische Zwecke, über fdie sich .in: bekannter Weise ein Speicherkondensiator unter Erzeugung einles Lichtblitzes entlädt. Durch Ver-. engung der Entladungsstrecke kann man bekanntlich die Ouerschni:ttsbelastung der Entladung erhöhen und, dadurch eine besonders hohe Leuchtdichte erzielen. In allen den: Fällen,, in denen man aus optischen Gründen eine möglichst kleine Fläche hoher Leuchtdichte benötigt, ist man @deshalb bestrebt, eine so lohe Verengung der Entladiungsstrecke vorzusehen. Das bereitet jedoch bei, Bilitzleuchten im Geigensatz zu kontinuierlich leuchtenden Entladungsröhren erhebliche Schwierigkeiten. Bei der Blitzentladung ist an sich dieQuerschni:ttsbelasfiung der En@tladungs-strecke außerordentLich noch. Will man diese :durch Verengung noch steigern, so ergibt .sich eine sehr große thermische Belastung der verengten: Stelle, die nur sehr hochhirtzebeständiger Werkstoff, z. B. Quarz, aushalten kann. Andererseits ist es aus verschiedenen Gründen praktisch kaum möglich, das ganze En@tlaadiumgsgefäß aus hochhitzebeständigem Werkstoff zu fertigen. Es bereitet auch erhebliche technische Schwierigkeiten, das Entladungsgefäß aus mehreren Teilen- d'urc'h Zus.ammenschnnelzen herzustellen. Man. Lamm infolgedessen auch nicht :den die Verengung der Entladungsstrecke enthaltenden Teil aus hochhitzebeständigem Werkstoff herstellen und mit den übrigen aus normalem Gl,as@ bestehenden Gefäßteilen: zu einem geschlossenen Gefäß zusammenschmelzen. Alle soldhe Ausführungen würden sehr teuer und kaum :den Beanspruchungen :auf die Dauer gewachsen sein-.The invention relates to a flash tube for photographic use Purposes over which .in: a known way a storage capacitor under production a single flash of light discharges. By ver. It is well known that the discharge path can be narrowed Increase the overall load on the discharge and, as a result, a particularly high one Achieve luminance. In all of the: cases, in which one for optical reasons requires the smallest possible area of high luminance, the aim is therefore to to provide such a narrow narrowing of the discharge path. However, this prepares Bilitz lights in the violin set to continuously glowing discharge tubes considerable Trouble. In the case of lightning discharges, the cross-sectional loading is the Discharge route is still extraordinary. If you want to increase this: by narrowing it, this results in a very high thermal load on the constricted: point that only very high-resistance material, e.g. B. quartz, can withstand. on the other hand For various reasons it is practically hardly possible to use the entire en @ tlaadiumgsgefäß made of highly heat-resistant material. It also prepares considerable technical Difficulty in melting the discharge vessel from several parts - d'urc'h together to manufacture. Man. As a result, neither does Lamm: the narrowing of the discharge path Manufacture containing part of highly heat-resistant material and with the rest Vessel parts consisting of normal Gl, as @: melt together to form a closed vessel. All such designs would be very expensive and hardly: the demands: the To be grown in the long run.

Die Erfindung besteht darin, @daß die Verengung durch ein innenhalb einer geschlossenen Rohrwandung liegendes kurzes Rohrstück hoher Hitzebeständigkeit, vorzugsweise aus. Quarz, gebildet ist. Dadurch wird erreicht, daß man einerseits ein Entladungsiggefäß üblicher Herstellumgs;art verwenden kann, andererseits an der verengten Stelle eine :hochhitzebeständige Wandung erhält, ohne daß dieses. eingesetzte Rohrstück abgedichtet und als Teil :der Gefäßwandung eingeschmolzen werden muß.The invention consists in @ that the constriction by an inside A short pipe section with high heat resistance lying on a closed pipe wall, preferably off. Quartz. This achieves that on the one hand can use a discharge vessel of conventional manufacture, on the other hand the narrowed point receives a highly heat-resistant wall without this. Inserted pipe section sealed and as part of: the vessel wall melted down must become.

Die Abbildung veranschaulicht schematisch zwei Ausführungsbeispiele der Erfindung. Die Abb. I zeigt eine Blitzröhre in Form eines gestreckten Entladungsrohres i aus Glas, .in das in üblicher Weise Elektroden. a, g eingeschmolzen sind.The figure schematically illustrates two exemplary embodiments the invention. Fig. I shows a flash tube in the form of an elongated discharge tube i made of glass, in the usual way electrodes. a, g are melted down.

Indas Entladungsrohr i .ist ein Quarzrohr 4 mit einer verhältnismäßig kleinen Öffnung 5 eingesetzt, ohne daß diie Wandung des Erntladiungsrohre;s i unterbrochen ist. Eine zusätzliche Befestigung dies Quarzrohres 4 ist bei richtigem Einpassen desselben nicht erforderlich. Es genügt vielmehr, das Entladungsrohr i in Höhe dies, Quarzrohres. nach dessen Einsetzen zu erwärmen, bis das Glas etwas weich wird und sich an das Quarzröhrchen .4 anschmiegt. Inder Öffnung 5 :bildet ,sich, bei der Entlaidiung eine außerordentlich hohe Leuchtdichte aus. In. Abb, a ist eine U-förmni,ge Blitzröhre 6 :dargestellt, in die auf :die beschriebene Weise ein Quarzröhrchen. 7 eingesetzt ist und die Einschnürung der Entladungsstrecke bildet.In the discharge tube i. Is a quartz tube 4 with a relatively small opening 5 inserted without the wall of the Erntladiungsrohre; s i interrupted is. An additional attachment of this quartz tube 4 is with correct fitting the same not required. Rather, it is sufficient to place the discharge tube i in the amount of Quartz tube. after its onset to heat up until the glass is a little soft and clings to the quartz tube .4. In the opening 5: forms, at the Entlaidiung an extraordinarily high luminance. In. Fig, a is a U-shaped, ge Flash tube 6: shown in the manner described in a quartz tube. 7 is inserted and forms the constriction of the discharge path.

Claims (1)

PATENTANSPRUCFI: Blitzröhre für photographische Zwecke mit einer Verengung der Entladungsstrecke, dadurch gekennzeichnet, idaß die Verengung durch ein innerhalb einer geschlossenen, Rohrwandung liegendes kurzes Rohrstück hoher Hitzebeständiiigkeit, vorzugsweise aus Quarz, gebildet ist.PATENT CLAIM: Flash tube for photographic use with a constriction the discharge path, characterized in that the constriction by an inside a closed, pipe wall lying short pipe section of high heat resistance, is preferably formed from quartz.
DEM13108A 1952-02-26 1952-02-26 Flash tubes with narrowed discharge path for photographic purposes Expired DE897199C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM13108A DE897199C (en) 1952-02-26 1952-02-26 Flash tubes with narrowed discharge path for photographic purposes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM13108A DE897199C (en) 1952-02-26 1952-02-26 Flash tubes with narrowed discharge path for photographic purposes

Publications (1)

Publication Number Publication Date
DE897199C true DE897199C (en) 1953-11-19

Family

ID=7296182

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM13108A Expired DE897199C (en) 1952-02-26 1952-02-26 Flash tubes with narrowed discharge path for photographic purposes

Country Status (1)

Country Link
DE (1) DE897199C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2680601A1 (en) * 1991-06-24 1993-02-26 Heraeus Instr Gmbh LOW PRESSURE DISCHARGE LAMP WITHOUT ELECTRODE.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2680601A1 (en) * 1991-06-24 1993-02-26 Heraeus Instr Gmbh LOW PRESSURE DISCHARGE LAMP WITHOUT ELECTRODE.

Similar Documents

Publication Publication Date Title
DE2651643A1 (en) HALOGEN LIGHT BULB
DE3736887A1 (en) GASKET GLASS AND LAMP WITH IT
DE2362528A1 (en) HALOGEN LAMP WITH ROUNDED END WITH SPIRAL PUMP PIPE AND METHOD OF MANUFACTURING
DE2833896A1 (en) MELTING DOWN FOR ELECTRIC LAMPS
DE897199C (en) Flash tubes with narrowed discharge path for photographic purposes
DE663337C (en) Process for melting tungsten wire in quartz using intermediate glasses
DE1173622B (en) Method for one-sided fusing of glass tubes by means of a gas burner in such a way that an optical lens is created at the closed tube end, and device for carrying out this method
DE839832C (en) Flash tubes for electronic flash units
DE1589334A1 (en) Vessel for arc discharges and process for its manufacture
DE2155270A1 (en) PRISM HOLDER FOR A DIGITAL LIGHT DEFLECTING SYSTEM
DE1000574B (en) Glass and bifocal glass lens
DE2731297A1 (en) HEADLIGHTS, ESPECIALLY FOR MOTOR VEHICLES
AT59923B (en) Metal filament light bulb with chemical compounds located inside the bell to improve the quality of the lamp.
AT143952B (en) High pressure discharge tube.
DE1088247B (en) Four-element lens
DE1489467A1 (en) Process for the production of incandescent lamps with an addition of gaseous halogens, in particular bromine, to the filling gas and incandescent lamps produced thereafter
AT247150B (en) Lighting device for cine film projectors
DE1596730A1 (en) Borate-rich glasses
DE353632C (en) Torch for oxy-fuel welding or cutting
DE534532C (en) Electrode arrangement in glow tubes for photographic purposes
DE554651C (en) Electric cathode glow lamp
DE384843C (en) Chimney for lamps
AT227834B (en) Fluorescent light
DE546366C (en) Glow cathode tubes
DE678433C (en) Glow lamp, especially for the purposes of television and video telegraphy