• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A lighting arrangement (1) for motor vehicles with two light guides (2, 7), the optical impurity arrangements (6, 12) for light emission, and with two light feed pieces (3, 8), which light sources (5, 10) for feeding light into the light guides are assigned, wherein on the second light guide (7) which is shorter than the first light guide (2) over a portion of its length an impurity array (12) is formed, the second light guide (7) at a junction (11) in the first light guide (2) opens and in the light emission direction in front of the first light guide (2) is arranged, and in the light emission direction, the impurity arrangement (12) of the second light guide (7) in a transition region (2u) to the impurity assembly (6) of the first light guide (2) connects.
    公开号:AT512803A1
    申请号:T50156/2012
    申请日:2012-05-04
    公开日:2013-11-15
    发明作者:Lukas Taudt
    申请人:Zizala Lichtsysteme Gmbh；
    IPC主号:
    专利说明:

    P12565
    LIGHT ARRANGEMENT FOR MOTOR VEHICLES
    The invention relates to a lighting arrangement for motor vehicles with two light guides, the optical impurity arrangements for light emission, as well as with two light feed pieces whose light entry surfaces are assigned to light sources for feeding light into the light guide.
    Such a lighting arrangement has become known from DE 101 39 578 A1, namely an interior light for vehicles, which has a light conductor strand with two adjoining light supply branches. The two Zuführzweige rectangular cross-section converge, starting from light entry surfaces, and encounter a transfer region which continuously converts the rectangular cross-section in a Kreisquerschrdtt, then to connect in the actual optical fiber strand with an optical impurity region. In order to achieve a desired luminous color, light emitting diodes with different spectral distribution, e.g. a white LED and a red LED angeoTdnet, wherein the light beams of the two bulbs divergently coupled into the optical fiber strand and mixed together.
    DE 10 2005 019 093 A1 shows a multi-element light guide in which light is emitted in e.g. three different curved legs, the wedge-shaped transition into a common section, is irradiated. Due to the different curvature of the individual legs meet the light beams with different angles of incidence on the side and outcoupling surface of the light guide, so that light in a wider solid angle we radiated, for example, to comply with legal requirements. An aperture shields unintended and uncontrolled light in the area of the curved legs.
    The invention has for its object to provide a lighting arrangement in which light can be coupled in at least two places, for example, to be able to produce sufficiently high luminance without excessive heating at a light feed point to get. It has been shown that it is difficult to achieve a homogeneous transition of the luminance between such Lichtleitem when using two separate optical fibers. -2- PI2565
    This object is achieved, starting from a lighting arrangement of the type mentioned in that according to the invention on the second light guide, which is shorter than the first light guide over a portion of its length an impurity assembly is formed, the second light guide at a junction in the first light guide opens and is arranged in the light emission in front of the first light guide, wherein in Lichtabstrahlrich-direction the impurity assembly of the second light guide connects in a transition region to the impurity assembly of the first light guide.
    Thanks to the invention is obtained despite feeding the light at two spatially separate locations an optically and aesthetically satisfactory transition between the two light guides.
    In the sense of a uniform illumination image can be provided that the impurity assembly of the second light guide in the transition region to the impurity assembly of the first light guide overlapping connects. It is particularly advantageous in this case if, in the overlapping region, the density of the impurities of both light guides in the transition region decreases.
    It is further expedient if the impurity arrangement of the first light guide extends substantially over its entire length
    Especially when used in conjunction with a headlamp, it is also advantageous if the first light guide over most of its length in a central region is substantially in a plane within which a Endbeteich is angled.
    In practice, and in particular when used in conjunction with a headlamp, it may be advisable if both the first light guide at its feed end over an area and the second light guide is angled at its feed end over a range and the angled portions of both light guides approximately parallel to each other. -3- PI2565
    In order to ensure a good and stable transition of the luminous areas of both light guides, it is further advantageous if the first and the second light guide are integrally molded.
    The invention together with further advantages is explained in more detail below with reference to an exemplary embodiment which is illustrated in the drawing. In this show
    1 is a view of a lighting arrangement according to the invention with three Lichtieitem in a view from the front,
    2 shows a lighting arrangement according to the invention with three Lichtieitem in a view from behind,
    Fig. 3 shows a lighting arrangement according to the invention with two Lichtieitem in a general perspective view
    4 is an enlarged partial view in a representation similar to FIG. 2,
    5 is an enlarged partial view in a representation similar to FIG. 3,
    6 is a further enlarged partial view similar to FIG. 4,
    7 shows a further partial perspective view of a lighting arrangement according to the invention, which shows the transition region in more detail,
    Fig. 8 is an enlarged portion of Fig. 7, wherein the optical fibers are cut along the lines A-A and B-B of Fig. 7, and
    9 shows a further partial perspective view of an entire lighting arrangement according to the invention, wherein the light guides are also cut according to the lines A-A and B-B of FIG. -4- PI2565
    The light assembly 1 shown in the figures, for example, frame a headlight of a vehicle over a portion of its circumference and serve as a direction indicator or as daytime driving light. In this case, as seen from the front, the view of Fig. 1, but the light assembly 1 could also be used for other purposes in a vehicle, such as at the rear of a vehicle.
    The lighting arrangement consists of a first light guide 2, which has a light feed piece 3 at its light entry end, the light entrance face 4 being associated in known manner with a first light source 5, for example a light emitting diode, for feeding light into the light guide. In the example shown, the light source 5 is located directly on the light entry surface 4. The first light guide 2 is over the largest part of its length in a central region 2m substantially in a plane within which an end portion 2e (in Fig. 2 right) in this embodiment angled at about 45 ° upwards. At its feed end, in this embodiment, the first light guide 2 is angled over a region 2a out of said plane to the rear
    As best seen in Fig. 2, extends over the largest Teü the length of the first light guide 2 at the rear of an impurity assembly 6, the od in a known manner, for example, prisms, a roughening. Like. There. More specifically, the impurity array extends over the angled end portion 2e, the substantially straight portion 2m, and a slightly curved transition portion 2u bounded by dotted lines in Figs. 1 and 2, the meaning of which will be explained below.
    The lighting arrangement 1 also has a second light guide 7, which likewise has a light feed piece 8 whose light entry face 9 is assigned a second light source 10, which also sits in the second light guide 7 on the light entry face 9.
    The second light guide 7, which in this example is considerably shorter than the first light guide 2, opens at a junction 11 into the first light guide 2, which is located at the light entry end of the central region 2m and at the beginning of the transition region 2u angled at its feed end 7 over a region 7a, wherein the angled regions 2a and 7a of the two optical fibers 2.7 are approximately parallel to each other. -5- PI2565
    In the case of the second optical waveguide 7, as with the first optical waveguide 2, an impurity array 12 is formed on the rear side over a portion of its length. In this case, the second optical waveguide 7 is located spatially relative to the first optical waveguide 2, that seen from the front -see Fig. 1 - the second optical waveguide 7 at least with that portion which is provided with the impurity assembly 12, just behind the first light guide 2. In Fig. 1, therefore, only the edge of the widened portion of the Lichteinspeisestücks 8 can be seen.
    The Ausbüdung the erfindun gsgemäßen lighting arrangement causes the impurity assembly 12 of the second light guide 7 seen from the front of the impurity assembly 6 of the first light guide 2 connects, or in other words that - again seen from the front - the impurity assembly 12 of the second light guide 7 about there ends where the impurity assembly 6 of the first light guide 2 begins. As a result, the first optical waveguide 2 in the transitional region 2u shines through the second optical waveguide 7 toward the front and a homogeneous illumination image also results at the transition of the impurity arrays 6 and 12.
    In order to avoid misunderstandings with regard to the terminology used, it should be noted here that the impurity arrangements arranged on a rear side of a light guide emit light in a known manner through the cross section of a light guide.
    However, it may also be expedient for the impurities of the two light guides 2, 7 to overlap one another in the transition region, e.g. the density of the impurities of both light guides in the transition region decreases, and the sum of the luminances of both light guides produces an overall uniform illumination image.
    Of course, the invention does not exclude that further optical fibers lead into the first or second optical fiber and feed light, as shown in the figures by a dashed line indicated third optical fiber 13, which is also angled over a region 13a to the rear, a Lichteinspeisestück 16 with a light entry surface 15 for a third light source 17 and an impurity assembly 18 and opens at a junction 14 in the first light guide 2. -6- PI2565
    Particular attention must be given to the merging region of the light guides, which are shown in more detail in FIGS. 4 to 9 in particular for the first and the second light guides 2 and 7 and designated by reference numeral 19. The intersection of the optical fibers must be technically meaningful, but the shape also depends on the manufacturing technology used, in particular of the tools in injection molding. Namely, the tools should be reusable so that they are separated after casting. As a result, visible edge lines are created at the joints of the tools.
    The Zusammenführbereich 19 must therefore be subject to both a photometric and manufacturing engineering compromise. Optimization of the light losses and the homogeneity of the light image should make it possible to produce in injection molding by means of molding tools and subsequent tool separation taking into account removal devices. The shape and shape of this Zusammenführbereiches 19 is thus highly dependent on the respective geometry of the light sticks (position in three-dimensional space, angle and course) and the associated limitations by tools and Entformungsmöglichkeiten, which in Figs. 4 to 9 for the expert is clearly recognizable.
    4 shows an enlarged partial view in a representation similar to FIG. 2, FIG. 5 shows an enlarged partial view in a representation similar to FIG. 3 and FIG. 6 shows a further enlarged partial view similar to FIG. 4.
    In a further partial perspective view according to FIG. 7 of a lighting arrangement according to the invention, the transition area can be seen more precisely, wherein FIG. 8 shows an enlarged area of FIG. 7 and the light guides are cut along the lines A-A and B-B of FIG. In this case, the center lines of the light guides 2 and 7 are denoted by a and b, through which said sections are guided.
    Fig. 9 is a further partial perspective view of an entire lighting arrangement according to the invention wherein the light guides 2, 7 are also cut according to the lines A-A and B-B of Fig. 7 and their center lines are again denoted by a and b. -7- P12565
    The optical fibers have a - most preferred - circular cross section, but the cross section could for example also be elliptical or otherwise shaped. Usually, the light guides are made of a clear and optically suitable plastic material, wherein the first light guide 2 may be formed integrally with the second light guide 7. Suitable plastics are, for example, polycarbonate or polymethyl methacrylate (acrylic glass).
    The terms " front " used in connection with the light assembly 1 and "behind" as well as "left" and "right" are not limiting but to be understood to mean that an impurity array "rear"; is arranged on a light guide, with light after "front". is emitted. Only when the lighting arrangement is arranged on the front of a vehicle, for example to surround a headlight, terms such as "front" and "front" are used. and "behind" both at least essentially apply to the lighting arrangement as well as to the vehicle. -II- PI2565 -11- PI2565 List of references (not part of the application) 1 light assembly 2 first light guide 2a region 2e end region 2m middle region 2u transition region 3 light feed 4 light entrance surface 5 first light source 6 impurity assembly 7 second light guide 7a region 8 light feed 9 light entrance surface 10 second Light source 11 Junction 12 Impurity assembly 13 Third optical fiber 13a Region 13u Transition region 14 Junction 15 Light entrance surface 16 Light input element 17 Third light source 18 Impurity assembly 19 Junction region a Center line of 2 b Center line of 7
    权利要求:
    Claims (7)
    [1]
    Claims 1. A lighting arrangement (1) for motor vehicles with two light guides (2, 7), the optical impurity arrangements (6,12) for light emission, and with two light feed pieces (3, 8), which light sources (5,10 ) are assigned to the supply of light into the light guide, characterized in that on the second light guide (7) which is shorter than the first light guide (2), over a portion of its length, an impurity assembly (12) is formed, the second light guide (7) opens at a junction (11) in the first light guide (2) and is arranged in the light emission in front of the first light guide, wherein in Lkhtabstrahlrichtung the impurity array (12) of the second light guide (7) in a transition region (2u) to the impurity assembly (6) of the first light guide (2) connects.
    [2]
    2. lighting arrangement (1) according to claim 1, characterized in that the impurity arrangement (12) of the second light guide (7) in the transition region (2u) to the impurity assembly (6) of the first light guide (2) overlapping connects.
    [3]
    3. lighting arrangement (1) according to claim 2, characterized in that in the overlap region, the density of impurities (6,12) of the two light guides (2, 7) decreases in the transition region.
    [4]
    4. lighting arrangement (1) according to one of claims 1 to 3, characterized in that the impurity arrangement (6) of the first light guide (2) extends substantially over its entire length.
    [5]
    5. lighting arrangement (1) according to one of claims 1 to 4, characterized in that the first light guide (2) over most of its length in a central region (2m) is substantially in a plane within which an end portion (2e) is angled. -9- P12S65
    [6]
    6. lighting arrangement (1) according to one of claims 1 to 5, characterized in that both the first light guide (2) at its feed end over an area (2a) and the second light guide (7) is at its feed end over an area ( 7a) is angled and the angled portions (2a and 7a) of the two optical fibers (2,7) are approximately parallel to each other.
    [7]
    7. lighting arrangement (1) according to one of claims 1 to 6, characterized in that the first and the second light guide (2,7) are formed integrally molded.
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    同族专利:
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP2338732A1|2009-12-16|2011-06-29|Automotive Lighting Reutlingen GmbH|Motor vehicle lighting device with a light guide and light sources of different colours|
    DE102011009100A1|2011-01-21|2012-03-15|Audi Ag|Illumination device e.g. ceiling light, for illuminating lighting equipments e.g. instruments, in interior of motor car, has light source emitting light, where light source opens into conductor portion with optics|
    DE10139578A1|2001-08-10|2003-04-10|Hella Kg Hueck & Co|Interior light for vehicle, has light sources with different spectral distributions whose light is divergently coupled in transition region to light conductor strand and mixed together|
    DE102005019093B4|2005-03-29|2007-02-08|Fer Fahrzeugelektrik Gmbh|Vehicle lamp with a multi-membered light guide|
    DE102007013082A1|2007-03-14|2008-09-18|Hella Kgaa Hueck & Co.|Signal light i.e. elevated brake light, for motor vehicle, has elongated reflection section including set of reflection elements and provided at rear side for deflecting coupled light in main radiation direction|
    DE202007014598U1|2007-10-16|2009-02-26|Witte-Velbert Gmbh & Co. Kg|license plate light|
    WO2009110477A1|2008-03-03|2009-09-11|株式会社フジクラ|Door mirror device|
    JP2011129250A|2008-03-03|2011-06-30|Fujikura Ltd|Lighting system and emission method of light|JP6326963B2|2014-05-22|2018-05-23|市光工業株式会社|Vehicle light guide member, vehicle lamp|
    DE102015007664B4|2015-06-16|2017-07-20|Audi Ag|Direction indicator for a motor vehicle|
    CN106482056B|2015-09-02|2021-06-04|雅马哈发动机株式会社|Light device for saddle-ride type vehicle and saddle-ride type vehicle having the same|
    FR3042846B1|2015-10-23|2017-12-01|Valeo Vision|LIGHT DEVICE WITH OPTICAL GUIDES|
    AT518163B1|2016-02-17|2017-08-15|Zkw Group Gmbh|Light guide for a vehicle headlight|
    CN108644735B|2018-04-25|2020-03-20|东风汽车有限公司|Dynamic signal lamp and control method thereof|
    法律状态:
    2016-11-15| HC| Change of the firm name or firm address|Owner name: ZKW GROUP GMBH, AT Effective date: 20161014 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50156/2012A|AT512803B1|2012-05-04|2012-05-04|Lighting arrangement for motor vehicles|ATA50156/2012A| AT512803B1|2012-05-04|2012-05-04|Lighting arrangement for motor vehicles|
    EP13166014.4A| EP2660508B1|2012-05-04|2013-04-30|Lighting arrangement for motor vehicles|
    CN201310159810.7A| CN103423683B|2012-05-04|2013-05-03|Light fixture for vehicle|
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