DE816083C - Electric headlight with an attachment - Google Patents

Electric headlight with an attachment

Info

Publication number
DE816083C
DE816083C DEP11649D DEP0011649D DE816083C DE 816083 C DE816083 C DE 816083C DE P11649 D DEP11649 D DE P11649D DE P0011649 D DEP0011649 D DE P0011649D DE 816083 C DE816083 C DE 816083C
Authority
DE
Germany
Prior art keywords
glass
attachment
headlight
glasses
light source
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
DEP11649D
Other languages
German (de)
Inventor
Arno Pahl
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Priority to DEP11649D priority Critical patent/DE816083C/en
Application granted granted Critical
Publication of DE816083C publication Critical patent/DE816083C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00Globes; Bowls; Cover glasses
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/0005Devices preventing the lights from becoming dirty or damaged, e.g. protection grids or cleaning by air flow
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/30Ventilation or drainage of lighting devices
    • F21S45/33Ventilation or drainage of lighting devices specially adapted for headlamps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Description

An elektrischen Scheinwerfern pflegt man die Öffnung, durch die das ausgestrahlte Licht tritt, durch Glas abzudecken, insbesondere wenn es sich um Scheinwerfer für Aufstellung im Freien handelt. Man hat bisher für diese,Abdeckgläser Glasscheiben aus Hartglas verwendet. Infolge des kleinen Ausdehnungskoeffizienten sind die Hartglasscheiben nicht nur imstande, hohe Temperaturen auszuhalten, sondern laufen auch nicht die Gefahr, bei plötzlicher Abkühlung, z. B. durch Regen, zu zerspringen.On electric headlights, the opening through which the Light emitted occurs through glass cover, especially when it comes to headlights for outdoor installation. So far, glass panes have been used for these cover glasses made of tempered glass used. Due to the small expansion coefficient, the hard glass panes are Not only are they able to withstand high temperatures, but they don't run either Danger of sudden cooling, e.g. B. by rain to shatter.

Die Erfindung befaßt sich mit der Aufgabe, für die elektrischen Scheinwerfer mit Glasvorsatz an Stelle des Hartglases gewöhnliches Glas (Fensterglas) zu verwenden. Erfindungsgemäß hat der Vorsatz zwei im Abstand voneinander befindliche Gläser, vorzugsweise aus gewöhnlichem Fensterglas, von denen das der Lichtquelle zugewandte Glas in schmale Streifen geteilt und das andere ungeteilt ist.The invention is concerned with the task for the electric headlights with a glass attachment, ordinary glass (window glass) can be used instead of hard glass. According to the invention, the attachment has two glasses spaced apart from each other, preferably made of ordinary window glass, of which the one facing the light source Glass is divided into narrow strips and the other is undivided.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt. Die Fig. i zeigt einen Querschnitt und die Fig.2 eine Vorderansicht eines Scheinwerfers gemäß der Erfindung. Mit i ist das Gehäuse des Scheinwerfers bezeichnet, das im Innern den Spiegelreflektor 2 und die Lichtquelle 3 (Glühlampe) enthält. Die Lichtaustrittsöffnung des Gehäuses ist durch einen angebauten Vorsatz 4 mit Glas abgeschlossen. Der Vorsatz enthält zwei Gläser 5, 6, die beide aus gewöhnlichem Glas (Fensterglas) bestehen können. Die beiden Gläser befinden sich in einem Abstand voneinander. Das der Lichtquelle zugewandte Glas 5 ist in schmale Streifen unterteilt. Infolge dieser Unterteilung können in den Glasstreifen bei der hohen Erwärmung, der sie durch die Lichtquelle ausgesetzt sind, nicht solche Glasspannungen auftreten, die sich schädlich auswirken. Aus diesem Grunde ist die Verwendung 'von normalem Glas (Fensterglas) möglich. Das zweite Glas 6 ist über seiner ganzen Fläche ungeteilt. Es hat die Aufgabe, das Eindringen von Regen oder Staub in das Innere des Scheinwerfers zu verhindern. Das zweite, außenliegende Glas 6 befindet sich in einem solchen Abstand von dem innenliegenden Glas 5, daß keine übermäßig starke Temperaturen an ihm auftreten. Die an ihm auftretenden Erwärmungen sind nicht so groß, daß das Glas bei plötzlicher Abkühlung, z. B. durch Regen, zerspringt.An exemplary embodiment of the invention is shown in the drawing. FIG. 1 shows a cross section and FIG. 2 shows a front view of a headlight according to the invention. With i the housing of the headlight is referred to, which is in Inside contains the mirror reflector 2 and the light source 3 (incandescent lamp). The light exit opening the housing is closed by an attached attachment 4 with glass. The resolution contains two glasses 5, 6, both of which are made of ordinary glass (window glass) can. The two glasses are at a distance from each other. That of the light source facing glass 5 is divided into narrow strips. As a result of this division can get into the glass strips at the high level of heating caused by the light source are exposed to such glass stresses that have a harmful effect do not occur. For this reason the use of normal glass (window glass) is possible. That second glass 6 is undivided over its entire surface. It's the job of penetrating to prevent rain or dust from getting inside the headlamp. The second, outer glass 6 is at such a distance from the inner one Glass 5 that no excessively high temperatures occur on it. The ones appearing on him Heating is not so great that the glass suddenly cools down, e.g. B. by Rain, bursts.

Der mit den Gläsern versehene Vorsatz 4 ist als Anbauteil ausgebildet, kann also an das Scheinwerfergehäuse i angesetzt und wieder abgenommen werden. Geeignete Mittel halten den Anbauteil an dem Scheinwerfergehäuse fest. Gemäß einer zweckmäßigen Weiterbildung der Erfindung enthält der Anbauteil selbst die für die Belüftung des Scheinwerfergehäuses erforderlichen Einrichtungen. Diese Einrichtungen, die nicht nur Öffnungen 7 für den Luftein- und -austritt darstellen, sondern auch Lichtabschirmvorrichtungen 8 enthalten, sind dicht neben dem der Lichtquelle zugewandten Glas 5 angeordnet. Auf diese Weise ist erreicht, daß der kühlende Luftstrom, der von unten in das Gehäuse und oben aus dem Gehäuse austritt, dicht an dem am meisten der Erwärmung ausgesetzten Glas vorbeistreicht.The attachment 4 provided with the glasses is designed as an attachment, can therefore be attached to the headlight housing i and removed again. Suitable Means hold the attachment on the headlamp housing. According to an expedient Further development of the invention contains the attachment itself for the ventilation of the Headlight housing required facilities. These bodies that don't only represent openings 7 for the air inlet and outlet, but also light shielding devices 8 are arranged close to the glass 5 facing the light source. In this way it is achieved that the cooling air flow from below into the housing and emerges from the top of the housing, close to the one most exposed to the heating Sweeps past the glass.

Claims (2)

PATENTANSPRÜCHE: i. Elektrischer Scheinwerfer mit einem Vorsatz, der die Scheinwerferöffnung durch Glas abschließt, dadurch gekennzeichnet, daß der Vorsatz (.4) zwei im Abstand voneinander befindliche Gläser (5, 6), vorzugsweise aus gewöhnlichem Fensterglas, hat, von denen das der Lichtquelle zugewandte Glas (5) in schmale Streifen geteilt und das andere Glas (6) ungeteilt ist. PATENT CLAIMS: i. Electric headlight with an attachment which closes the headlight opening with glass, characterized in that the attachment (.4) has two glasses (5, 6), preferably made of ordinary window glass, which are spaced apart from one another, of which the glass facing the light source ( 5) divided into narrow strips and the other glass (6) is undivided. 2. Scheinwerfer nach Anspruch i, dadurch gekennzeichnet, daß der die Gläser (5, 6) enthaltende Vorsatz (4) als Anbauteil für das Scheinwerfergehäuse ausgebildet und mit Entlüftungsvorrichtungen (7) versehen ist, die den kühlenden Luftstrom an dem der Lichtquelle zugewandten Glas (5) vorbeiführen.2. Headlights according to claim i, characterized in that the attachment containing the glasses (5, 6) (4) designed as an attachment for the headlight housing and with ventilation devices (7) is provided, which the cooling air flow at that of the light source facing Guide the glass (5) past.
DEP11649D 1948-10-02 1948-10-02 Electric headlight with an attachment Expired DE816083C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP11649D DE816083C (en) 1948-10-02 1948-10-02 Electric headlight with an attachment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP11649D DE816083C (en) 1948-10-02 1948-10-02 Electric headlight with an attachment

Publications (1)

Publication Number Publication Date
DE816083C true DE816083C (en) 1951-10-08

Family

ID=7363606

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP11649D Expired DE816083C (en) 1948-10-02 1948-10-02 Electric headlight with an attachment

Country Status (1)

Country Link
DE (1) DE816083C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4569007A (en) * 1981-10-29 1986-02-04 Ford Motor Company Headlamp
US5094010A (en) * 1990-07-05 1992-03-10 Amjo Infra-Red And Ultra-Violet Drying Systems, Inc. Vented ultraviolet drying system for drying fiberglass resins in boat hulls and decks

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4569007A (en) * 1981-10-29 1986-02-04 Ford Motor Company Headlamp
US5094010A (en) * 1990-07-05 1992-03-10 Amjo Infra-Red And Ultra-Violet Drying Systems, Inc. Vented ultraviolet drying system for drying fiberglass resins in boat hulls and decks

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