DE393499C - Projection lamp - Google Patents

Projection lamp

Info

Publication number
DE393499C
DE393499C DEP44593D DEP0044593D DE393499C DE 393499 C DE393499 C DE 393499C DE P44593 D DEP44593 D DE P44593D DE P0044593 D DEP0044593 D DE P0044593D DE 393499 C DE393499 C DE 393499C
Authority
DE
Germany
Prior art keywords
luminous
projection lamp
luminous element
passed
angular
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
DEP44593D
Other languages
German (de)
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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.)
Publication date
Priority to DEP44593D priority Critical patent/DE393499C/en
Priority claimed from GB240122A external-priority patent/GB184748A/en
Application granted granted Critical
Publication of DE393499C publication Critical patent/DE393499C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01KELECTRIC INCANDESCENT LAMPS
    • H01K9/00Lamps having two or more incandescent bodies separately heated
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01KELECTRIC INCANDESCENT LAMPS
    • H01K7/00Lamps for purposes other than general lighting
    • H01K7/02Lamps for purposes other than general lighting for producing a narrow beam of light; for approximating a point-like source of light, e.g. for searchlight, for cinematographic projector

Landscapes

  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Description

Projektiensglühlampe. Vorliegende Erfindung bezieht sich auf Projektionsglühlampen derjenigen Art, bei der zwei zweckmäßig schraubenlinienförmig gewundene Leuchtkörper Anwendung finden. Die Erfindung besteht im wesentlichen darin, <laß ein geradlinig gestalteter Leuchtkörper zwischen den Schenkeln eines winkelförmigen hindurchgeführt ist.Projecting light bulb. The present invention relates to incandescent projection lamps of the kind in which two expediently helically wound luminous bodies Find application. The invention consists essentially in <let a straight line designed filament passed between the legs of an angled is.

Der notwendige Raum für beide Leuchtkörper wird hierdurch erheblich verringert und gleichzeitig erreicht, daß beide Leuchtkörper bei Befestigung der Lampe in einem Reflektor annähernd im Brennpunkt desselben zu liegen kommen. Zweckmäßig werden die Leuchtkörper derart zueinander angeordnet, daß ihre geometrischen Mittelpunkte zusamtnenfallen.This increases the space required for both light bodies reduced and at the same time achieved that both filaments when attaching the Lamp come to lie in a reflector approximately in the focal point of the same. Appropriate the luminous bodies are arranged to one another in such a way that their geometric centers collapse.

In der Zeichnung ist die Erfindung in zwei beispielsweisen Ausführungsformen schaubildlich dargestellt.In the drawing, the invention is in two exemplary embodiments shown graphically.

Bei der Ausführungsform nach Abb. i sind die Stützen ri und 12 für einen winkelförmigen Leuchtkörper io im Lampenfuß 13 in üblicher Weise befestigt. Zwischen den Schenkeln des Leuchtkörpers io ist ein geradliniger Leuchtkörper 15 hindurchgeführt, welcher von den Stützen 17 und 18 gehalten wird, von denen eine im Lampenfuß befestigt und die andere mit einer der beiden Stützen des winkelförmigen Leuchtkörpers vereinigt ist. "!.weckmäßig sind beide Leuchtkörper schraubenlinienförmig gewunden.In the embodiment according to Fig. I, the supports ri and 12 are for an angular luminous body io attached in the lamp base 13 in the usual way. A rectilinear luminous element 15 is located between the legs of the luminous element io passed through, which is held by the supports 17 and 18, one of which fixed in the lamp base and the other with one of the two supports of the angular Luminous body is united. In terms of purpose, both illuminants are helical sinuous.

Bei der Anordnung nach Abb. i steht der geradlinig gerichtete Leuchtkörper 15 senkrecht zur Ebene des winkelförmigen Leuchtkörpers io. Es kann jedoch unter Umständen wünschenswert sein, den Leuchtkörper 15 geneigt zur Ebene des Leuchtkörpers io anzuordnen, um bestimmten Teilen des Reflektors mehr Licht zu geben. Eine solche Anordnung ist in Abb. 2 veranschaulicht, wo der geradlinig gerichtet Leuchtkörper 15' geneigt zwischen dem winkelförmigen Leuchtkörper io hindurchgeführt ist.In the arrangement according to Fig. I, the rectilinearly directed luminous element stands 15 perpendicular to the plane of the angular luminous element io. However, it can take It may be desirable to have the luminous element 15 inclined to the plane of the luminous element io to be arranged in order to give more light to certain parts of the reflector. Such Arrangement is illustrated in Fig. 2, where the rectilinear filament 15 'is passed inclined between the angular luminous element io.

Um eine möglichst gleichmäßige Lichtverteilung zu erzielen, wird zweckmäßig der geradlinig gerichtete Leuchtkörper, ganz gleich, ob er senkrecht oder geneigt zur Ebene des winkelförmigen steht, durch den geometrischen Mittelpunkt des von dem winkelförmig gestalteten Leuchtkörper gebildeten Dreiecks hindurchgeführt.In order to achieve a light distribution that is as uniform as possible, it is expedient the rectilinear luminaire, regardless of whether it is vertical or inclined to the plane of the angular stands, through the geometric center of the of the angled luminous body passed through the triangle formed.

Claims (1)

PATENT-ANsPRUcH: Projektionsglühlampe mit zwei zweckmäßig schraubenlinienförmig gewundenen Leuchtkörpern, dadurch gekennzeichnet, daß ein geradlinig gestalteter Leuchtkörper zwischen den Schenkeln eines winkelförmigen hindurchgeführt ist. PATENT CLAIM: Projection incandescent lamp with two expediently helically wound luminous bodies, characterized in that a rectilinear luminous body is passed between the legs of an angled one.
DEP44593D 1922-01-26 Projection lamp Expired DE393499C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP44593D DE393499C (en) 1922-01-26 Projection lamp

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP44593D DE393499C (en) 1922-01-26 Projection lamp
GB240122A GB184748A (en) 1922-01-26 1922-01-26 Improvements in and relating to electric incandescent lamps

Publications (1)

Publication Number Publication Date
DE393499C true DE393499C (en) 1924-04-11

Family

ID=25990693

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP44593D Expired DE393499C (en) 1922-01-26 Projection lamp

Country Status (1)

Country Link
DE (1) DE393499C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1294013A2 (en) * 2001-09-14 2003-03-19 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Incandescent lamp for automobile headlight

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1294013A2 (en) * 2001-09-14 2003-03-19 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Incandescent lamp for automobile headlight
EP1294013A3 (en) * 2001-09-14 2006-05-03 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Incandescent lamp for automobile headlight

Similar Documents

Publication Publication Date Title
EP1294013A3 (en) Incandescent lamp for automobile headlight
DE393499C (en) Projection lamp
DE247646C (en)
DE280693C (en)
DE574066C (en) Electric light bulb for headlights of motor vehicles with V-shaped main thread and straight secondary thread
DE948432C (en) Electric incandescent lamp in which the incandescent body is stretched out in one plane by means of a frame
DE459468C (en) Vehicle lamp with reflector mirror
DE638447C (en) Electric light bulb with two filament wires, especially for car headlights
DE2223444A1 (en) Electric light bulb
DE833080C (en) Electric incandescent lamp or mixed light lamp, preferably one with a double or multiple spiral filament
DE354688C (en) Lamp reflector
DE351696C (en) Light screen system for lamps
AT202652B (en) Wide beam luminaire
DE944570C (en) Lighting fixture for tubular light sources with a pair of trough-shaped reflectors
DE469084C (en) Electric light bulb
AT94580B (en) Two-filament lightbulb.
DE327696C (en) Electric incandescent lamp with helical filament
AT138523B (en) Replacement filament lightbulb.
DE464658C (en) Wire luminaire for large-candle electric light bulbs
AT139269B (en) Reflector and electric incandescent lamp with a reflector arranged within the same.
AT200666B (en) Multi-filament light bulb for headlights
AT155704B (en) Electric light bulb with internal reflector.
DE102018203635A1 (en) BULB FOR VEHICLE HEADLIGHTS
AT62151B (en) Arrangement of the metal threads on supporting frames in electric light bulbs.
DE708982C (en) Lighting device for sound film purposes