DE644152C - Electric light bulb for electro-optical transmissions - Google Patents

Electric light bulb for electro-optical transmissions

Info

Publication number
DE644152C
DE644152C DET44476D DET0044476D DE644152C DE 644152 C DE644152 C DE 644152C DE T44476 D DET44476 D DE T44476D DE T0044476 D DET0044476 D DE T0044476D DE 644152 C DE644152 C DE 644152C
Authority
DE
Germany
Prior art keywords
electro
optical transmissions
light bulb
electric light
lamp
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
DET44476D
Other languages
German (de)
Inventor
Dr Paul Kotowski
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.)
Telefunken AG
Original Assignee
Telefunken 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 Telefunken AG filed Critical Telefunken AG
Priority to DET44476D priority Critical patent/DE644152C/en
Application granted granted Critical
Publication of DE644152C publication Critical patent/DE644152C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K7/00—Lamps for purposes other than general lighting
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/52—Means for obtaining or maintaining the desired pressure within the vessel
    • H01K1/54—Means for absorbing or absorbing gas, or for preventing or removing efflorescence, e.g. by gettering

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)

Description

DEUTSCHES REICHGERMAN EMPIRE

AUSGEGEBEN AM
24. APRIL 1937ISSUED ON
APRIL 24, 1937

REICHSPATENTÄMTREICH PATENT

PATENTSCHRIFTPATENT LETTERING

KLASSE 21 f GRUPPECLASS 21 f GROUP

ίΓ 444/6· VIII φι f Tag der Bekanntmachung über die Erteilung des Patents: 8. AprilίΓ 444/6 VIII φι f Date of publication of the patent grant: April 8th

Elektrische Glühlampe für elektro-optische ÜbertragungenElectric incandescent lamp for electro-optical transmissions

Patentiert im Deutschen Reiche vom 16. Juli 1932 abPatented in the German Empire on July 16, 1932

Die Erfindung betrifft eine elektrische Glühlampe für elektro-optische Übertragungen in Tonfilm- oder Fernsehapparaten.The invention relates to an electric incandescent lamp for electro-optical transmissions in Sound film or television sets.

Es ist bereits eine Glühlampe bekannt, bei der. die Schwärzung der Glaswände durch elektrisch geladene Drahtgitter, an denen sich die verdampfenden Metallteilchen ansammeln, verhindert wird. Weiterhin ist eine Anordnung bekanntgeworden, bei der eine Anordnung, wie sie eben geschildert wurde, entweder als Glühlampe oder aber als Gleichrichter verwendet werden soll.An incandescent lamp is already known in which. the blackening of the glass walls electrically charged wire mesh on which the evaporating metal particles collect, is prevented. Furthermore, an arrangement has become known in which an arrangement as it was just described, either as an incandescent lamp or as a rectifier should be used.

Nach der Erfindung wird nun 'eine Anordnung vorgeschlagen, bei der dem GlühfadenAccording to the invention is now 'an arrangement suggested at the filament

1S einer Lampe ein negatives Potential gegenüber einem Metallkörper (Anode) erteilt wird. Bei passender Formgebung und Lage des als Anode wirkenden Körpers wird die Helligkeit der Lampe nicht benachteiligt. Die Erfindung besteht nun darin, eine derartige Lampe gleichzeitig als Tonlampe und als Gleichrichter zu verwenden. Besonders vorteilhaft ist die Schaltungsanordnung für das Anwendungsgebiet des Tonfilms und des Fernsehens, wo bei Netzanschluß sowohl ein Gleichstrom erzeugt werden als auch eine Tonlampe zur Durchleuchtung der Tonspur des Films vorgesehen sein muß. Es wird durch eine solche Anordnung erheblich an Raum für den Projektor gespart. Mit diesem Vorteil ist der weiters verknüpft, daß die Lebensdauer der Tonlampe auf diesem Wege wesentlich erhöht wird. 1 S a lamp is given a negative potential compared to a metal body (anode). With a suitable shape and position of the body acting as anode, the brightness of the lamp is not disadvantaged. The invention consists in using such a lamp as a sound lamp and as a rectifier at the same time. The circuit arrangement is particularly advantageous for the field of sound film and television, where both a direct current is generated when connected to the mains and a sound lamp must be provided for illuminating the sound track of the film. Such an arrangement saves considerable space for the projector. This advantage is also linked to the fact that the life of the clay lamp is significantly increased in this way.

Claims (1)

Patentanspruch:Claim: Elektrische Glühlampe für elektrooptische Übertragungen in Tonfilm- oder Fernsehapparaten mit einem gegen den Glühdraht aufgeladenen Körper, dadurch gekennzeichnet, daß der Glühdraht einerseits und der Körper andererseits gleichzeitig als Elektroden eines Gleichrichters ausgebildet sind.Electric incandescent lamp for electro-optical transmissions in sound film or TV sets with a body charged against the filament, thereby characterized in that the filament on the one hand and the body on the other hand at the same time are designed as electrodes of a rectifier.
DET44476D 1932-07-16 1932-07-16 Electric light bulb for electro-optical transmissions Expired DE644152C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DET44476D DE644152C (en) 1932-07-16 1932-07-16 Electric light bulb for electro-optical transmissions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET44476D DE644152C (en) 1932-07-16 1932-07-16 Electric light bulb for electro-optical transmissions

Publications (1)

Publication Number Publication Date
DE644152C true DE644152C (en) 1937-04-24

Family

ID=7561774

Family Applications (1)

Application Number Title Priority Date Filing Date
DET44476D Expired DE644152C (en) 1932-07-16 1932-07-16 Electric light bulb for electro-optical transmissions

Country Status (1)

Country Link
DE (1) DE644152C (en)

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