CH220335A - Dimming device. - Google Patents
Dimming device.Info
- Publication number
- CH220335A CH220335A CH220335DA CH220335A CH 220335 A CH220335 A CH 220335A CH 220335D A CH220335D A CH 220335DA CH 220335 A CH220335 A CH 220335A
- Authority
- CH
- Switzerland
- Prior art keywords
- diaphragm
- color
- collapsible
- dimming device
- light
- Prior art date
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
- F21V11/08—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using diaphragms containing one or more apertures
-
- 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
- F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
- F21S41/68—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens
- F21S41/683—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens
- F21S41/695—Screens rotating around a vertical axis
-
- 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
- F21V11/08—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using diaphragms containing one or more apertures
- F21V11/10—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using diaphragms containing one or more apertures of iris type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
Description
Abblendevorrichtung. Die Erfindung betrifft eine Abblende vorrichtung, z. B. für die Abblendung von Scheinwerfern sowie von Glühlampen und andern Lichtquellen. Besonders zweckmässig ist dieselbe für die Abblendung von Schein werfern an Autos, Velos, Eisenbahnen, Stra ssenbahnen etc.
Die Abblendevorrichtung zeichnet sich erfindungsgemäss dadurch aus, dass sie eine zusammenschiebbare Blende aufweist, durch deren Verstellung die Farbe des durch die Abblendevorrichtung hindurchgelassenen Lichtes verändert wird.
In der Zeichnung ist beispielsweise eine Ausführungsform der erfindungsgemässen Abblendevorrichtung dargestellt.
Die Fig. I und II zeigen einen Schein werfer mit der Abblendevorrichtung in zwei verschiedenen Stellungen. Fig. III zeigt schematisch die Abblendevorrichtung selbst in seitlichem Schnitt. Die Abblendevorrich- tung nach den Fig. I bis III besteht aus einer Glasscheibe<I>a,</I> deren Zentrum<I>b</I> farbig abgetönt, z. B. blau oder gelb gefärbt ist. Als zusammenschiebbare Blende ist eine Iris blende c bekannter Art mit undurchsichtigen Lamellen vorhanden.
In Fig. I ist die Iris blende in geöffnetem Zustande dargestellt. Das Licht der Lampe d dringt durch die Ringzone e ungehindert ins Freie. Die Farbe des durchgelassenen Lichtstromes ist über wiegend weiss, weil durch die zentrale Par tie nur ein geringer Anteil des gesamten Lichtes hindurchgeht. Die Fig. II zeigt die Irisblende in geschlossener Stellung, so dass die ganze Ringzone abgedeckt ist und nur das farbige Zentrum frei ist, das einer Öff nung der Blende gegenübersteht. Das in die- ser-Stellung durch die Abblendevorrichtung hindurchgehende Licht ist also farbig.
Man kann diese Vorrichtung zum Beispiel für Verdunkelungsgebrauch bei einem Auto- oder Veloscheinwerfer verwenden, indem die Iris blende nach Belieben augenblicklich auf volles Licht. oder Abblendung gestellt wer den kann. Dies kann zum Beispiel durch fernmechanische Übertragung vom Führer sitz aus bewirkt werden. In Fig. IH ist die Irisblende ebenfalls geschlossen. Es muss nicht notwendigerweise eine Irisblende vor handen sein, es könnte auch eine andere zu sammenschiebbare Blende, z. B. aus Stoff. verwendet werden.
Ferner könnte davon ab gesehen werden, eine in der Mitte gefärbte. durchscheinende Scheibe zu verwenden; es könnten vielmehr die Lamellen einer Iris blende aus durchscheinendem, farbigem Ma terial bestehen, z. B. aus gelb oder blau ge färbtem Zelluloid, Zellon etc. Eine gefärbte Zone könnte auch exzentrisch auf der Glas scheibe angebracht sein bei entsprechender Ausbildung der Blende, das heisst, dass die Öffnung der geschlossenen Blende exzen trisch ist.
Dimming device. The invention relates to a masking device, for. B. for dimming headlights as well as light bulbs and other light sources. It is particularly useful for dimming headlights on cars, bicycles, trains, trams, etc.
According to the invention, the screening device is characterized in that it has a collapsible screen, the adjustment of which changes the color of the light that is let through the screening device.
In the drawing, for example, an embodiment of the screen device according to the invention is shown.
Figs. I and II show a headlamp with the dimming device in two different positions. Fig. III shows schematically the masking device itself in a lateral section. The screening device according to FIGS. I to III consists of a pane of glass <I> a </I> whose center <I> b </I> is tinted in color, e.g. B. is colored blue or yellow. As a collapsible diaphragm there is an iris diaphragm c of a known type with opaque lamellas.
In Fig. I the iris is shown in the open state. The light from lamp d penetrates unhindered through the ring zone e. The color of the luminous flux that passes through is predominantly white because only a small proportion of the total light passes through the central part. Fig. II shows the iris diaphragm in the closed position, so that the entire ring zone is covered and only the colored center is free, which faces an opening of the diaphragm. The light passing through the masking device in this position is therefore colored.
This device can be used, for example, for blackout use in a car or bicycle headlight, by turning the iris to full light instantly at will. or dimming can be set. This can be effected, for example, by remote mechanical transmission from the driver's seat. In Fig. IH the iris diaphragm is also closed. It does not necessarily have to be an iris diaphragm, it could also be another diaphragm that can be pushed together, e.g. B. made of fabric. be used.
Furthermore, a colored one in the middle could be disregarded. to use translucent disk; it could rather be the lamellae of an iris diaphragm made of translucent, colored Ma material, z. B. from yellow or blue colored celluloid, celluloid, etc. A colored zone could also be eccentrically attached to the glass disc with a corresponding design of the aperture, that is, the opening of the closed aperture is eccentric.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH220335T | 1941-10-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH220335A true CH220335A (en) | 1942-03-31 |
Family
ID=4451616
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH220335D CH220335A (en) | 1941-10-06 | 1941-10-06 | Dimming device. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH220335A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004014900A1 (en) * | 2003-09-09 | 2005-06-16 | Volkswagen Ag | Vehicle headlamp, especially for a road vehicle, has iris stop in path of at least some light emitted or to be emitted by light source containing number of light emitting diodes |
ES2255788A1 (en) * | 2003-10-06 | 2006-07-01 | Seat, S.A. | Illumination module for automobiles has diaphragm that allows and prevents light from lamp to reach reflector for high beam when open and closed, respectively |
EP1985913A1 (en) * | 2007-04-25 | 2008-10-29 | Valeo Vision | Automobile headlight comprising an optical module equipped with a mobile shade |
DE102012108772B4 (en) | 2012-09-18 | 2023-09-21 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Operable cover of functional parts of a headlight for a motor vehicle and headlight with an actuatable cover |
-
1941
- 1941-10-06 CH CH220335D patent/CH220335A/en unknown
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004014900A1 (en) * | 2003-09-09 | 2005-06-16 | Volkswagen Ag | Vehicle headlamp, especially for a road vehicle, has iris stop in path of at least some light emitted or to be emitted by light source containing number of light emitting diodes |
DE102004014900B4 (en) * | 2003-09-09 | 2016-11-17 | Volkswagen Ag | Vehicle headlight system |
ES2255788A1 (en) * | 2003-10-06 | 2006-07-01 | Seat, S.A. | Illumination module for automobiles has diaphragm that allows and prevents light from lamp to reach reflector for high beam when open and closed, respectively |
EP1985913A1 (en) * | 2007-04-25 | 2008-10-29 | Valeo Vision | Automobile headlight comprising an optical module equipped with a mobile shade |
FR2915556A1 (en) * | 2007-04-25 | 2008-10-31 | Valeo Vision Sa | MOTOR VEHICLE PROJECTOR COMPRISING AN OPTICAL MODULE PROVIDED WITH A MOBILE MASK |
CN101311619B (en) * | 2007-04-25 | 2011-12-14 | 法雷奥视觉公司 | Automobile headlight comprising an optical module equipped with a mobile shade |
CN102353005A (en) * | 2007-04-25 | 2012-02-15 | 法雷奥视觉公司 | Automobile headlight comprising an optical module equipped with a mobile shade |
CN102353005B (en) * | 2007-04-25 | 2014-09-10 | 法雷奥视觉公司 | Automobile headlight comprising an optical module equipped with a mobile shade |
DE102012108772B4 (en) | 2012-09-18 | 2023-09-21 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Operable cover of functional parts of a headlight for a motor vehicle and headlight with an actuatable cover |
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