DE966982C - Dimmable headlight with a visor cap in front of the light bulb - Google Patents
Dimmable headlight with a visor cap in front of the light bulbInfo
- Publication number
- DE966982C DE966982C DEW13469A DEW0013469A DE966982C DE 966982 C DE966982 C DE 966982C DE W13469 A DEW13469 A DE W13469A DE W0013469 A DEW0013469 A DE W0013469A DE 966982 C DE966982 C DE 966982C
- Authority
- DE
- Germany
- Prior art keywords
- headlight
- dimmable
- cap
- visor
- headlight according
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/29—Attachment thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
- F21S41/47—Attachment thereof
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
Um den Austritt !angerichteter Lichtstrahlen, aus dom Reflektor von Kraftfahrzeugscheiniwerfern zu unterbinden,, ordnet man vor der Lichtquelle eine Blendkappe an., die meist als Halbkugel ausgebildet ist und die Glühlampe so weit umfaßt, daß nur gerichtetes Licht aus dem Scheinwerfer austreten kann,, während die unmittelbar von dem Glühfäden ausgehenden, Strahlen, entweder von. der Blendkappe verschluckt oder auf den Reflektor zurück-Around the exit! Of directed rays of light dom reflector of automobile headlights too prevent, a blind cap is placed in front of the light source, which is usually designed as a hemisphere and encompasses the light bulb so far that only directional light emerges from the headlight can, while the rays emanating directly from the filament, either from. the visor swallowed or back on the reflector.
geworfen, werden. Bei den üblichen Zweifadenlampen, von denen der eine aus dem Brennpukt herausgerückt und mit einem Abblendlöffel unterlegt ist, besteht: bei der Anordnung einer Blendkappe der Nachteil, daß die aus der Abblendwendeil austretenden, vom Reflektor zurückgeworfenen Lichtstrahlen zum Teil auf die Blendkappe treffen,, wodurch der Reflektor nicht voll ausgeleuchtet wird. Um diesem Übelstand abzuhelfen, ist eine Blendkappe bekanntgeworden, deren obere Hälfte einen geringerein Durchmesser aufweist als die untere. Hierdurch wird zwar eine volle Ausleuchtung des Reflektors erzielt, jedoch tritt ein Teil der aus dem Fernlichtglühfaden kommenden. Strahlen an der Blendkappe vorbei unmittelbar aus deir oberen Hälfte des Scheinwerfers aus und. blendet bei Nebel und. Dunst den Fahrer des Kraftfahrzeuges. Außerdem stören die seitlich direkt austretenden, Strahlen, durch die zu starke Aufhellung der seitlichen Kulisse der Fahrbahn.to be thrown. With the usual two-filament lamps, one of which was pulled out of the focal point and placed under a dip spoon is, there is: in the arrangement of a blind cap, the disadvantage that the from the Abblendwendeil outgoing light rays reflected by the reflector partly hit the visor cap, whereby the reflector is not fully illuminated. To remedy this evil is one Aperture cap has become known, the upper half of which has a smaller diameter than the lower. Although this achieves full illumination of the reflector, some of the coming out of the high beam filament. Rays past the visor directly from deir upper half of the headlight off and. dazzles in fog and. Haze the driver of the motor vehicle. In addition, the rays emerging directly from the side interfere with the excessive brightening the side backdrop of the roadway.
Die Erfindung betrifft einen solchen Kraftfahrzeugscheinweirfer und schlägt zur Beseitigung des geschilderten, Übelstandes vor, der Blendkappe einen schirmartig wirkenden zylindrischen Blendkragen, anzuordnen, der diese konzentrisch und mitThe invention relates to such a motor vehicle headlamp and proposes to remedy the above-mentioned deficiency, the cover cap an umbrella-like acting cylindrical cover collar, to arrange these concentrically and with
70*692/3970 * 692/39
Abstand derart umgibt, daß die aus dem Fernlichtglühfaden! nach oben und seitlich direkt austretenden Strahlen abgefangen und zur Reflektormitte hin abgelenkt werden. Seine Breite kann, da er durch die konzentrische Anordnung und die zylindrische Ausbildung den Austritt gerichteter Lichtstrahlen nicht hindert, derart bemessen sein, daß bei eingeschaltetem Abblendlicht auch die Strahlen erfaßt werden, die bei der vollen Ausleuchtung des ίο Reflektors infolge der endlichen1 Ausdehnung des Glühfadens etwa noch unmittelbar austreten können·.Distance surrounds such that the filament from the high beam! rays emerging directly upwards and to the side are intercepted and deflected towards the center of the reflector. Its width can, because it does not prevent the exit of directed light rays due to the concentric arrangement and the cylindrical design, so that when the low beam is switched on, the rays are also detected, which in the full illumination of the ίο reflector due to the finite 1 expansion of the filament about to be able to exit immediately ·.
Zweckmäßigerweise wird man den Blendkragen SO' ausbilden, daß er nur die obere Half te derBlendkappei umgibt, wobei er sich, zur Mitte hin absatzweise oder stetig verjüngen kann. Man wird ihn zweckmäßigerweise mit der Abblendkappe selbst und mit deren oberer Befestigungsstrebe verbinden. The cover collar SO 'is expediently designed so that it only has the upper half of the cover cap surrounds, whereby it can taper gradually or steadily towards the middle. One becomes him expediently connect to the anti-glare cap itself and to its upper fastening strut.
Um auch etwaige Toleranzen in der Lage der Glühfaden zueinander und zum Reflektoibrennpunkt auszugleichen, wird zur völligen Erreichung des Erfindungszweckes weiterhin vorgeschlagen,, den Glashaltering des Scheinwerfers leicht vorzuwölben,, zumindest in der oberen. Scheiinwerferhälfte. Hierdurch wird mit Sicherheit das Austreten aller direkten, d. h. ungerichteten Lichtstrahlen verhindert.There are also any tolerances in the position of the filaments in relation to one another and in relation to the reflective focal point to compensate, it is still proposed to fully achieve the purpose of the invention, To slightly bulge the headlamp's glass retaining ring, at least in the upper one. Headlight half. This will certainly prevent all direct, i. H. undirected light rays prevented.
Die erfindungsgemäße Anordnung des den Austritt unmittelbarer Lichtstrahlen verhindernden Blendkragens innerhalb· des Scheinwerfers hat gegenüber dem an anderer Stelle vorgeschlagenen, den Scheinwerfer überragenden Blenidschirm den Vorteil, daß das äußere Bild des Kraftfahrzeuges nicht gestört wird. Außerdem ist die Herstellung billiger und einfacher.The inventive arrangement of the outlet anti-direct light rays inside the headlamp has compared to the blenid screen that towers over the headlights and is proposed elsewhere Advantage that the external image of the motor vehicle is not disturbed. Besides, the manufacturing cheaper and easier.
Die Zeichnung veranschaulicht ein Ausführungsbeispiel der Erfindung, und zwar stellt Abb. ι den Scheinwerfer im Schnitt dar, währeind The drawing illustrates an embodiment of the invention, namely represents Fig. Ι the headlight in section, would be
Abb. 2 die Vorderansicht der Blendkappe zeigt.Fig. 2 shows the front view of the visor cap.
In dem Reflektor 1, der durch die Glasscheibe 2In the reflector 1, which passes through the glass pane 2
verschlossen ist, befindet sich die Zweif adenlampe 3, deren Fernlichtglühf aden 4 im Reflektorbrennpunkt angeordnet ist, während der Abblendglühfadlen 5 nach vorn herausgerückt und mit dem Abblend,-löffel 6 unterlegt ist. Vor der Glühlampe ist die Blendkappe 7 angeordnet, deren obere Half ta 8 einen geringeren, Durchmesser besitzt als· die untere Hälfte 9. Erfindungsgemäß ist diese Blendkappe konzentrisch und mit Abstand von dem Blend-is closed, there is the two thread lamp 3, the high beam incandescent thread 4 in the reflector focal point is arranged while the Abblendglühfadlen 5 moved forward and with the Abblend, spoon 6 is highlighted. The cover cap 7 is arranged in front of the incandescent lamp, its upper half ta 8 has a smaller diameter than the lower half 9. This cover cap is according to the invention concentrically and at a distance from the glare
kragen 10 umgeben. Dieser Kragen ist derart im Strahlengang dar Glühfäden angeordnet, daß er die unmittelbar austretenden Teile der Strahlenbündel! und 16 des Fernlichtglühf adens· 4 bzw. der Abblendwendel 5 abfängt. Der Kragen 10 ist halbkreisförmig ausgebildet und mit seinen· abgewinkelten Enden, 12 in, die Abblendkappe eingesetzt und außerdem noch an der Befestigungsstrebe 13 der Kalotte 7 befestigt. Der Glashaltering 14 des Scheinwerfers ist in seinem oberen Teil 15 vorgewölbt collar 10 surrounded. This collar is so in The path of rays is arranged so that the filaments are exposed to the directly exiting parts of the bundle of rays! and 16 of the high beam filament · 4 and the dimming filament, respectively 5 intercepts. The collar 10 is semicircular and with its angled Ends, 12 in, inserted into the anti-dazzle device and also attached to the mounting strut 13 the dome 7 attached. The glass retaining ring 14 of the headlight is bulged in its upper part 15
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEW13469A DE966982C (en) | 1954-03-12 | 1954-03-12 | Dimmable headlight with a visor cap in front of the light bulb |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEW13469A DE966982C (en) | 1954-03-12 | 1954-03-12 | Dimmable headlight with a visor cap in front of the light bulb |
Publications (1)
Publication Number | Publication Date |
---|---|
DE966982C true DE966982C (en) | 1957-09-26 |
Family
ID=7595050
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEW13469A Expired DE966982C (en) | 1954-03-12 | 1954-03-12 | Dimmable headlight with a visor cap in front of the light bulb |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE966982C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1077996B (en) * | 1958-01-28 | 1960-03-17 | Dr Peter Hirsch | Glare screen for dipped headlights equipped with a single filament light bulb, especially for motor vehicles with separate high and low beam headlights |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1245083A (en) * | 1916-01-27 | 1917-10-30 | Benjamin Electric Mfg Co | Illuminating device. |
US1352777A (en) * | 1916-01-18 | 1920-09-14 | Benjamin Electric Mfg Co | Illuminating device |
GB232487A (en) * | 1924-09-09 | 1925-04-23 | Joseph Bernard Harris | Improvements in combined vehicle bumper and roadlight |
FR770599A (en) * | 1934-03-23 | 1934-09-17 | Marchal | Device for recovering or concentrating the direct flux in headlamps, in particular automobile headlamps |
-
1954
- 1954-03-12 DE DEW13469A patent/DE966982C/en not_active Expired
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1352777A (en) * | 1916-01-18 | 1920-09-14 | Benjamin Electric Mfg Co | Illuminating device |
US1245083A (en) * | 1916-01-27 | 1917-10-30 | Benjamin Electric Mfg Co | Illuminating device. |
GB232487A (en) * | 1924-09-09 | 1925-04-23 | Joseph Bernard Harris | Improvements in combined vehicle bumper and roadlight |
FR770599A (en) * | 1934-03-23 | 1934-09-17 | Marchal | Device for recovering or concentrating the direct flux in headlamps, in particular automobile headlamps |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1077996B (en) * | 1958-01-28 | 1960-03-17 | Dr Peter Hirsch | Glare screen for dipped headlights equipped with a single filament light bulb, especially for motor vehicles with separate high and low beam headlights |
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