EP0990838A2 - Leuchte für Kraftfahrzeuge - Google Patents
Leuchte für Kraftfahrzeuge Download PDFInfo
- Publication number
- EP0990838A2 EP0990838A2 EP99118501A EP99118501A EP0990838A2 EP 0990838 A2 EP0990838 A2 EP 0990838A2 EP 99118501 A EP99118501 A EP 99118501A EP 99118501 A EP99118501 A EP 99118501A EP 0990838 A2 EP0990838 A2 EP 0990838A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- reflector
- lens
- elements
- light
- luminaire 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.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
Definitions
- the invention relates to a lamp for motor vehicles with a light source assigned reflector and a lens covering the reflector Scattering elements for deflecting the light, the scattering elements being grid-shaped in Rows and columns are arranged.
- a lamp for vehicles in which the a reflector reflects light through a variety of insides on one Diffuser elements arranged horizontally and vertically is deflected so that a predetermined light distribution is generated.
- the Scattering elements each consist of a large number of partial prisms with flat surfaces educated.
- a lamp for motor vehicles is also known from EP 0 472 890 B1, in which a lens with a plurality of optical scattering elements predefined light distribution generated.
- This known lens consists of a combination of circular conical and cylindrical scattering elements.
- DE 33 05 218 C2 is a lamp known for vehicles with a lens, in the domed trained Scattering elements are arranged in an orthogonal optical grating. Disadvantageous this known lamp - as with the previous lamps - is that the orthogonal grating optics of the scattering elements in the presence of a beveled Opening edge of the vehicle body an optically unappealing Appearance.
- the object of the present invention is therefore to provide a lamp with a Specify beveled edge side of the lens that a predetermined Light distribution with a homogeneous and visually appealing appearance the same generated.
- the invention is characterized in that the Rows and / or columns are gradually offset from one another in this way are arranged so that an edge-side row and / or edge-side column are parallel extends to a sloping opening edge of the body and that on the one hand the Scattering elements have such a curvature that the light essentially in is deflected vertically and that on the other hand the reflector one Has a plurality of reflector elements with such a curvature that the Light is deflected in the horizontal direction.
- the particular advantage of the invention is that the lattice structure of the scattering elements of the lens arranged in rows and columns in the form of Contour of the body opening can be visually adapted, whereby Means are provided to meet the requirements for a given light distribution to fulfill.
- the basic idea of the invention is a local decoupling between the horizontal and the vertical scattering effect. After Invention occurs in a horizontal radiation plane by on the Reflector elements arranged on the inside of a reflector. A scatter in vertical radiation level, on the other hand, is arranged on a lens Scattering elements causes. Because of this local separation of the scatter generating elements can selectively a scattering effect according to the required light distribution can be achieved. In particular, the scattering elements be made flatter on the lens so that the light losses are lower can fail. In addition, the lens conveys aesthetically increased brilliance. In addition, increased manufacturing costs for otherwise relatively bulging scattering elements of the lens can be reduced.
- this has an im essentially trapezoidal lens, with at least one sloping edge side, with lines or extending parallel to the edge side Columns of the scattering elements fan-shaped to the opposite edge extend.
- This creates a uniform structure in the edge area of the Lens ensures a homogeneous scattering effect in the edge area of the Lens enables.
- this training promotes the visual appealing impression of the lens for the viewer.
- the reflector elements are as cylindrical lens elements are formed, which are elongated in vertical Extend direction.
- the reflector elements allow scattering in horizontal direction.
- the location of the reflector elements is in one curved section of the reflector, which is made up of flat surfaces formed elongated section connects. The design of this elongated section can be made so that the scattering of the Light is increased in the horizontal direction.
- the elongated section has line-shaped prisms that extend in the horizontal direction. You promote channeling the light and causing the light to scatter horizontal direction of radiation.
- the diffusing elements of the lens hood-shaped, the curvature of the same in the vertical direction is increased.
- FIG. 2 there is a lamp (1) for vehicles in the essentially from a light source (2) which is framed by a reflector (3).
- a light pane (4) is provided with a light exit opening of the reflector (3)
- Scattering elements (5) are arranged, which are positioned to each other in a lattice shape.
- the in Figure 2 illustrated reflector (3) forms one of several chambers of one in Figure 1 Multi-chamber light shown (18). Each chamber becomes a specific one Light function, for example rear fog light, brake light or reversing light assigned.
- the opening edge of the body for the one shown in Figure 1 Multi-chamber lamp (18) has a trapezoidal shape with an oblique Opening edge (6) to which a parallel oblique edge side (7) of Lens (4) corresponds.
- the scattering elements (5) of the lens (4) are in Rows (8) and arranged in columns (9).
- the Lines (8) essentially in the horizontal direction (H).
- the columns (9) of the Scattering elements (5) form an acute angle to a vertical (V).
- Edge side fan-shaped i.e.
- the Lens (4) is essentially flat. With an arched The rows and columns are also curved for the lens educated.
- the rows (8) and columns (9) produce a non-orthogonal one Lattice structure, essentially on an inside of the lens (4) extend similarly designed scattering elements (5).
- the Scattering elements also have a different shape that the is adapted to corresponding lighting requirements.
- Diffusing elements (5) are each hood-shaped, with a curvature (10) in Column direction (S) is greater than a curvature (10 ') in the row direction (Z). As a result, the light is mainly deflected in the vertical direction. Through the Curvature in the row direction (Z) also results in a deflection in, albeit smaller horizontal direction.
- the individual scattering elements (5) have a rectangular one or square projection surface, the radii of curvature on the Row direction (Z) or the column direction (S) are oriented.
- the scattering elements (5) lie directly against one another, whereby common edge lines (11) are formed.
- the edge lines (11) have an arcuate course.
- the reflector (3) consists of a parabolic curved section (12) and an integrally adjoining elongated section (13) which is trapezoidal in cross section and has flat side walls (14).
- the curved section (12) points in a vertical direction Direction (V) extending cylindrical reflector elements (15) whose Curvature or curvature under a constant radius in the horizontal direction (H) runs.
- the curvature of the reflector element (15) can also be in the Cross section can be arcuate or flattened on one side.
- the Reflector elements (15) can also have a different shape from one another have, depending on the lighting requirements Flattening takes place in a common direction.
- the surface of the Reflector elements (15) can be used as open spaces with any continuous course be trained.
- the reflector elements (15) arranged side by side bring about a scattering of the light emitted by the light source (2) in a horizontal direction Direction (H).
- the elongated section of the reflector (3) can also be profiled be trained, as in a cross section of a square reflector (20) in Figure 3 can be seen.
- upright side walls (16) of the elongated section of the reflector (20) prisms arranged in a step-like manner (17) to which each extend in the horizontal direction (H). You make one Channeling the light, promoting scattering in the horizontal direction becomes.
- the light source (21) is arranged in a central area.
- the prisms (17) compensate for the tilted around a horizontal axis trained side walls (16) and cause the light distribution on the top and bottom of the same a substantially straight course having.
- Figure 1 shows that the multi-chamber lamp (18) with different Scatter fields (19) of the lens (4) are assigned to light functions, wherein the columnar scatter elements (5) continuously between two non-parallel edge sides are rotated so that the edge side Adjacent column (9) runs parallel to the edge side. This is preferably done Rotation of the column (9) in the same partial or angular steps.
- the lines can be one experienced corresponding twist, so that any, with straight edge sides and for this purpose subsequent parallel rows of scattering elements Shape of the lamp is generated.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
- Figur 1
- einen Ausschnitt aus einer Vorderansicht einer Leuchte,
- Figur 2
- einen Längsschnitt durch einen Reflektor der Leuchte,
- Figur 3
- eine schmatische Vorderansicht eines parallelogrammförmigen Reflektors und
- Figur 4
- eine perspektivische Darstellung einer Anzahl von auf der Lichtscheibe nach Figur 1 angeordneten Streuelementen.
Claims (10)
- Leuchte mit einem einer Lichtquelle zugeordneten Reflektor und einer den Reflektor abdeckenden Lichtscheibe mit Streuelementen zur Ablenkung des Lichtes, wobei die Streuelemente gitterförmig in Zeilen und Spalten angeordnet sind, dadurch gekennzeichnet, daß die Zeilen (8) und/oder Spalten (9) jeweils nach und nach versetzt zueinander derart angeordnet sind, daß eine randseitige Zeile (8) und/oder randseitige Spalte (9) sich parallel zu einem schrägen Öffnungsrand der Karrosserie erstreckt und daß zum einen die Streuelemente (5) eine solche Krümmung aufweisen, daß das Licht im wesentlichen in vertikaler Richtung (V) abgelenkt wird und daß zum anderen der Reflektor (3) eine Mehrzahl von Reflektorelementen (15) mit einer solchen Krümmung aufweist, daß das Licht in horizontaler Richtung (H) abgelenkt wird.
- Leuchte nach Anspruch 1, dadurch gekennzeichnet, daß die Lichtscheibe (4) trapezförmig ausgebildet ist mit mindestens einer schrägen Randseite (7) und einer zu dieser benachbarten parallelen Zeile (8) oder Spalte (9) von Streuelementen (5), wobei sich die Zeilen (8) bzw. Spalten (9) fächerförmig in Richtung einer gegenüberliegenden Randseite der Lichtscheibe (4) erstrecken.
- Leuchte nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Reflektorelemente (15) als zylinderförmige Linsenelemente ausgebildet sind, die sich jeweils in vertikaler Richtung (V) erstrecken.
- Leuchte nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Streuelemente (5) jeweils haubenförmig mit einer in Spaltenrichtung (S) größeren Krümmung als in Zeilenrichtung (Z) ausgebildet sind.
- Leuchte nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Reflektor (3) tubusförmig ausgebildet ist.
- Leuchte nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Reflektor (3) auf einer zu der Lichtscheibe (4) abgewandten Seite einen die Reflektorelemente (15) aufweisenden gekrümmten Abschnitt (12) und einen sich in Lichtaustrittsrichtung an diesen anschließenden langgestreckten Abschnitt (13) aufweist.
- Leuchte nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der langgestreckte Abschnitt (13) des Reflektors (3) auf der Innenseite horizontal verlaufende Prismen (17) aufweist.
- Leuchte nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Leuchte (1) als Mehrkammerleuchte (18) mit mindestens zwei Reflektoren (3) und einer einzigen Lichtscheibe (4) mit einer zu den Reflektoren (3) korrespondierenden Anzahl von Streufeldern (19) ausgebildet ist, wobei sich die Zeilen (8) und/oder Spalten (9) der Streuelemente (5) unter kontinuierlicher Verdrehung zwischen zwei gegenüberliegenden, nicht parallelen Randseiten (7) der Lichtscheibe erstrecken.
- Leuchte nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Streuelemente (5) eine rechteckförmige Grundfläche aufweisen und erhaben ausgebildet sind.
- Leuchte nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Streuelemente (5) auf einer Innenseite der Lichtscheibe (4) verteilt angeordnet sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19844594 | 1998-09-29 | ||
DE19844594A DE19844594A1 (de) | 1998-09-29 | 1998-09-29 | Leuchte für Kraftfahrzeuge |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0990838A2 true EP0990838A2 (de) | 2000-04-05 |
EP0990838A3 EP0990838A3 (de) | 2002-09-04 |
EP0990838B1 EP0990838B1 (de) | 2006-05-17 |
Family
ID=7882618
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99118501A Expired - Lifetime EP0990838B1 (de) | 1998-09-29 | 1999-09-18 | Leuchte für Kraftfahrzeuge |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0990838B1 (de) |
DE (2) | DE19844594A1 (de) |
ES (1) | ES2263244T3 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015012771A1 (en) | 2013-07-25 | 2015-01-29 | Hella Saturnus Slovenija, Proizvodnja Svetlobne Opreme Za Motorna In Druga Vozila, D.O.O. | Motor vehicle light |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3305218C2 (de) | 1983-02-16 | 1986-03-20 | Westfälische Metall Industrie KG Hueck & Co, 4780 Lippstadt | Mehrkammerleuchte für Kraftfahrzeuge |
DE4241887A1 (de) | 1991-12-13 | 1993-06-24 | Koito Mfg Co Ltd | |
EP0472890B1 (de) | 1990-08-10 | 1994-06-29 | Hella KG Hueck & Co. | Mehrkammerleuchte für Kraftfahrzeuge |
EP0489123B1 (de) | 1990-06-23 | 1995-08-02 | Robert Bosch Gmbh | Fahrzeugleuchte |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2508597A1 (fr) * | 1981-06-30 | 1982-12-31 | Cibie Projecteurs | Feu, notamment pour la signalisation des vehicules automobiles |
DE9001659U1 (de) * | 1990-02-13 | 1990-04-19 | Hella KG Hueck & Co, 4780 Lippstadt | Heckleuchte für Fahrzeuge |
DE9111339U1 (de) * | 1991-09-12 | 1991-10-31 | Hella KG Hueck & Co, 4780 Lippstadt | Mehrkammerleuchte |
FR2708081B1 (fr) * | 1993-07-20 | 1995-09-01 | Axo Scintex Cie Equip Automobi | Feu de signalisation de véhicules automobiles. |
JP3160835B2 (ja) * | 1993-12-21 | 2001-04-25 | 株式会社小糸製作所 | 車輌用標識灯 |
FR2733949B1 (fr) * | 1995-05-09 | 1997-08-01 | Valeo Vision | Feu de signalisation multifonctions pour vehicule automobile, equipe d'elements catadioptriques et pseudo-catadioptriques |
FR2753776B1 (fr) * | 1996-09-20 | 1998-12-11 | Feu de signalisation a miroir a surface a stries | |
JP3607019B2 (ja) * | 1996-10-17 | 2005-01-05 | 株式会社小糸製作所 | 車輌用灯具 |
-
1998
- 1998-09-29 DE DE19844594A patent/DE19844594A1/de not_active Withdrawn
-
1999
- 1999-09-18 DE DE59913430T patent/DE59913430D1/de not_active Expired - Lifetime
- 1999-09-18 ES ES99118501T patent/ES2263244T3/es not_active Expired - Lifetime
- 1999-09-18 EP EP99118501A patent/EP0990838B1/de not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3305218C2 (de) | 1983-02-16 | 1986-03-20 | Westfälische Metall Industrie KG Hueck & Co, 4780 Lippstadt | Mehrkammerleuchte für Kraftfahrzeuge |
EP0489123B1 (de) | 1990-06-23 | 1995-08-02 | Robert Bosch Gmbh | Fahrzeugleuchte |
EP0472890B1 (de) | 1990-08-10 | 1994-06-29 | Hella KG Hueck & Co. | Mehrkammerleuchte für Kraftfahrzeuge |
DE4241887A1 (de) | 1991-12-13 | 1993-06-24 | Koito Mfg Co Ltd |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015012771A1 (en) | 2013-07-25 | 2015-01-29 | Hella Saturnus Slovenija, Proizvodnja Svetlobne Opreme Za Motorna In Druga Vozila, D.O.O. | Motor vehicle light |
Also Published As
Publication number | Publication date |
---|---|
DE59913430D1 (de) | 2006-06-22 |
DE19844594A1 (de) | 2000-05-11 |
ES2263244T3 (es) | 2006-12-01 |
EP0990838B1 (de) | 2006-05-17 |
EP0990838A3 (de) | 2002-09-04 |
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