CN113785240A - 用于机动车辆的地面投影设备 - Google Patents

用于机动车辆的地面投影设备 Download PDF

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CN113785240A
CN113785240A CN202080030817.7A CN202080030817A CN113785240A CN 113785240 A CN113785240 A CN 113785240A CN 202080030817 A CN202080030817 A CN 202080030817A CN 113785240 A CN113785240 A CN 113785240A
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light
projection
projection device
motor vehicle
floor
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CN113785240B (zh
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马库斯·丹纳
克里斯蒂安·迈尔
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ZKW Group GmbH
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    • G03B21/00Projectors or projection-type viewers; Accessories therefor
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    • B60Q1/247Arrangement 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 for lighting other areas than only the way ahead for illuminating the close surroundings of the vehicle, e.g. to facilitate entry or exit
    • BPERFORMING OPERATIONS; TRANSPORTING
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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
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  • Multimedia (AREA)
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  • Optics & Photonics (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Road Signs Or Road Markings (AREA)

Abstract

一种用于机动车辆的地面投影设备,所述地面投影设备用于产生至少一个地面投影,其中地面投影设备具有照明机构和投影机构,其中照明机构设立用于产生光并且将光至少部分地放射到投影机构上,其中投影机构设立用于将由照明机构放射到投影机构上的光在地面投影设备装入机动车辆的状态中在机动车辆的侧面投影到行车道上作为地面投影,其中地面投影包括至少两个彼此间隔开的光区段,其中发光机构为此具有至少两个可单独操控的光源,其中每个光区段关联有至少一个光源,其中投影机构具有焦点或焦线,其中至少两个光源中的至少一个光源相对于投影机构的焦点或焦线错开地设置,其中由至少两个光源产生的光的第一部分沿着直接指向投影机构的第一射束方向放射,其中由至少两个光源中的至少一个光源产生的光的第二部分在不直接指向投影机构的第二射束方向上放射,其中地面投影方向具有吸收机构和/或转向机构,所述吸收机构和/或转向机构设立用于将光的第二部分至少部分地吸收和/或转向,使得光的第二部分不射到投影机构上。

Description

用于机动车辆的地面投影设备
技术领域
本发明涉及一种用于机动车辆的地面投影设备,所述地面投影设备用于产生至少一个地面投影,其中地面投影设备具有照明机构和投影机构,优选至少一个投影透镜,其中照明机构设立用于产生光并且将光至少部分地放射到投影机构上,其中投影机构设立用于将由照明机构放射到投影机构上的光在地面投影设备装入机动车辆中的状态下在机动车辆的侧面投影到行车道上作为地面投影,其中地面投影包括至少两个彼此间隔开的光区段,其中发光机构为此具有至少两个可单独操控的光源,其中每个光区段关联有至少一个光源,其中投影机构具有焦点或焦线,其中至少两个光源中的至少一个光源相对于投影机构的焦点或焦线错开地设置,其中由至少两个光源产生的光的第一部分沿着直接指向投影机构的第一射束方向放射,其中由至少两个光源中的至少一个光源产生的光的第二部分在并非直接指向投影机构的第二射束方向上放射。
本发明还涉及一种包括地面投影设备的机动车辆。
背景技术
用于在机动车辆侧面放射光的设备在现有技术中已知。然而,能够将多个光区段放射到行车道上的设备具有如下缺点:如果各个光区段被放射到行车道上,那么其由于光源的散射光而会具有不足的对比度,这导致信号作用变差。
发明内容
也就是说,本发明的目的在于,减轻或消除现有技术的缺点。因此,本发明的目的尤其是实现一种用于机动车辆的地面投影设备,其中改进光区段到行车道上的投影。
该目的通过具有权利要求1的特征的地面投影设备实现。优选的实施方案在从属权利要求中给出。
根据本发明,地面投影设备具有吸收机构和/或转向机构,其设立用于将光的沿着第二射束方向放射的第二部分至少部分地吸收和/或转向,使得光的第二部分不射到投影机构上。基本上能够将光的第二部分理解为散射光,所述散射光能够由如下状况引起:至少一个光源并非直接设置在投影机构的焦点或焦线中。如果散射光射到投影机构上,那么投影到行车道上的光区段的对比度不利地降低。通过根据本发明的吸收机构和/或转向机构,投影机构能够基本上保持无散射光。有利地,散射光能够在地面投影设备内部,更准确地说在发光机构和投影机构之间的空间区域中不延伸至投影机构,因为散射光在从发光机构到投影机构的路径上优选基本上完全地被吸收和/或转向。这提高了光区段的对比度从而提高了其可见性。这还提高了交通安全性。地面投影的至少两个光区段在机动车辆侧面投影到行车道上,其中侧面在这一点上是指沿着机动车辆的行驶方向在侧面。换言之,沿着行驶方向在机动车辆的左侧和/或右侧。即例如安置有机动车辆的外后视镜的车辆侧面。
至少两个光区段能够基本上条形地构成。在此,至少两个光区段例如能够具有相同的或不同的长度。换言之,光区段能够在投影到行车道上的状态下例如视为光条或照明条,所述光条或照明条照亮或照明行车道的条形区域。光区段尤其具有纵向伸展和横向伸展,其中纵向伸展大于横向伸展,由此能够在行车道上产生条形的被照明的区域。光区段的纵向伸展在投影到行车道上的状态下优选平行于机动车辆的纵轴线伸展。光区段的横向伸展在投影到行车道上的状态下优选正交于机动车辆的纵轴线伸展。
优选地,至少两个光源中的至少一个光源在地面投影设备的安装状态下沿竖直方向构成。换言之,至少两个光源中的一个光源能够竖直地设置在另一光源上方或下方。光源能够直接彼此连接或者彼此间具有间距。
优选地,发光机构包括多个光源,所述多个光源在电路板上以竖直地彼此重叠的光源序列设置,其中优选地,各个光源序列分别具有不同数量的光源,所述光源水平地并排设置。由此,第一光源序列例如能够具有n个光源,而竖直地设置在第一光源序列上方或下方的第二光源序列例如能够具有n+1或n-1个光源。对于第二光源序列具有n+1个光源的情况,第一光源序列能够具有n个光源,其中n>0。对于第二光源序列具有n-1个光源的情况,第一光源序列能够具有n个光源,其中n>1,其中n是自然数。第二光源序列也能够具有n+m个光源,其中m是自然数。作为光源尤其设有LED。
能够有利的是,光源序列的数量对应于投影到行车道上的光区段的数量。
优选地,每个光源序列分别关联有光区段。尤其地,每个光源序列能够关联有刚好一个光区段。由此,优选地,由第一光源序列的光源产生的光被提供用于第一光区段。此外优选地,由第二光源序列的光源产生的光被提供用于第二光区段。
至少两个光源和投影机构能够构成和设置为,使得至少两个光区段可无重叠地投影到行车道上。由此,优选地,至少两个光区段彼此间隔开。换言之,在两个光区段之间,在投影到行车道上的状态下,区域不被照亮。两个光区段之间的间距例如能够对应于光区段的宽度。
优选地,至少两个光源和投影机构构成和设置为,使得至少两个光区段可分别在距机动车辆的不同距离中投影到行车道上。光由第一光源序列的光源提供的第一光区段例如能够由投影机构在第一距离中投影到行车道上,其中第一光区段具有第一长度和第一宽度。此外,光由第二光源序列的光源提供的第二光区段例如能够由投影机构在第二距离中投影到行车道上,其中第二光区段具有第二长度和第二宽度。第一和第二距离,第一和第二长度以及第一和第二宽度能够是相同的或不同的。换言之,至少两个相对于彼此具有不同的尺寸或照明行车道的不同大小的面或区域的光区段例如能够通过投影机构在距机动车辆不同的距离中投影到行车道上。例如,相对于第二光区段更短和/或更窄的第一光区段与第二光区段相比能够在距机动车辆更小的距离中投影到行车道上。第一光区段例如能够在距机动车辆为0至1m的侧向距离中,第二光区段能够在距机动车辆为1至2m的侧向距离中,并且第三光区段能够在距机动车辆为2至3m的侧向距离中投影到行车道上,其中各个光区段尤其不重叠。
优选地,地面投影设备具有至少部分地围绕至少两个光源和投影机构的壳体,其中优选地,壳体的至少一个内面具有吸收机构和/或转向机构。壳体的能够具有吸收机构和/或转向机构的至少一个内面优选是在发光机构和投影设备之间延伸的内面。由此,有利地,光的沿着第二射束方向放射的第二部分能够被吸收和/或转向,使得光的第二部分不射到投影机构上。吸收机构能够包括吸收光的元件,所述吸收光的元件例如固定在壳体的至少一个内面上。转向机构能够包括在壳体的至少一个内面上的折射光或散射光的元件。转向机构例如能够包括沟槽形的、锯齿形的或棱锥形的结构,所述结构折射光的第二部分,使得光的第二部分不射到投影机构上。转向机构能够附加地也由吸收光的材料制造。这对应于转向机构和吸收机构的组合。
壳体尤其能够形状配合地围绕投影机构的边缘区域,其中优选地,吸收机构和/或转向机构设置在壳体之内直至投影机构正前方。换言之,吸收机构和/或转向机构在壳体之内在壳体的至少一个内面上延伸到投影设备面前。由此产生如下优点,光的第二部分,即散射光,不经过投影机构从而在壳体之外放射。散射光由此能够基本上完全被吸收和/或转向,或者散射光能够足够多地被吸收和/或转向,使得不会造成投影到行车道上的光区段的对比度明显变差。
优选地,地面投影设备具有用于检测行驶方向指示信号的通信机构,并且设立用于实现在时间上与激活机动车辆的行驶方向指示器同步地激活光区段的放射。至少两个光区段的投影能够与行驶方向指示器的光信号基本上同时地实现。由此,能够有利地使其他交通参与者更好地感知机动车辆的转弯过程或变道。
优选地,地面投影设备的投影机构包括刚好一个唯一的投影透镜,尤其自由曲面透镜,其中所有产生光区段的光源的光的第一部分转向到该唯一的投影透镜上。通过优选使用唯一的自由曲面透镜能够降低地面投影设备的重量和成本。自由曲面透镜成形为,使得由至少两个光源序列中的每一个光源序列沿第一放射方向放射的光以与相应的光源序列中的一个光源序列相关联的光区段形式投影到行车道上。
根据本发明提出一种包括地面投影设备的机动车辆。
优选地,地面投影设备固定在机动车辆的至少一个外后视镜上。
地面投影设备尤其能够包括冷却设备,所述冷却设备优选与发光机构热接触并且设立用于将热量从发光机构导出。冷却设备例如能够设置在壳体之内,在壳体之外或至少部分地在壳体之外。此外,地面投影设备能够包括固定设备,借助于所述固定设备可将地面投影设备固定在机动车辆上,例如机动车辆的外后视镜上。固定设备能够具有电子部件,所述电子部件设立用于,当地面投影设备固定在机动车辆上时,给地面投影设备供应能量。
在本说明书的范围内,将术语“上方”、“下方”、“水平”、“竖直”理解为当地面投影设备设置在正常使用位置中时,在所述地面投影设备例如已被安装在机动车辆的外后视镜上之后对定向的说明。
附图说明
下面根据一个优选的实施例进一步阐述本发明,然而本发明不应受限于该实施例。在附图中示出:
图1示出根据本发明的地面投影设备的前视图;
图2示出地面投影设备的侧视图;
图3示出地面投影设备的另一侧视图;
图4示出地面投影设备的吸收机构或转向机构的立体视图;
图5示出具有侧面投影的光区段的机动车辆的俯视图;以及
图6示出具有壳体和固定设备的地面投影设备的立体视图。
具体实施方式
附图示出示意性视图,其中分别不对不重要的部件进行描述。这将用于更好的理解。
图1示出用于机动车辆的地面投影设备1,所述地面投影设备用于产生至少一个地面投影。地面投影设备1包括发光机构2和投影机构3,优选至少一个投影透镜4,其中发光机构2设立用于产生光并且将光至少部分地放射到投影机构3上。投影机构3设立用于将由发光机构2放射到投影机构3上的光在投影设备1的装入机动车辆中的状态下在机动车辆侧面投影到行车道上作为地面投影(参见图5)。在所示出的实施例中,投影机构3包括刚好一个唯一的投影透镜4,尤其自由曲面透镜。地面投影包括至少两个彼此间隔开的光区段5。在根据图5的实施例中,地面投影分别包括三个光区段5,所述光区段在车辆左侧和车辆右侧上投影到行车道上。为了产生地面投影,发光机构2具有至少两个可单独操控的光源6,其中每个光区段5关联有至少一个光源6。投影机构3具有焦点或焦线,其中光源6中的至少一个光源相对于投影机构3的焦点或焦线错开地设置。根据图1中的实施例,发光机构2包括七个光源6,所述光源在电路板7上以竖直地彼此重叠的光源序列的形式设置。第一光源序列包括四个光源6,竖直地设置在所述第一光源序列上的第二光源序列包括两个光源6,并且竖直地位于第二光源序列上方的第三光源序列包括一个光源6。光源序列的数量对应于在车辆侧上投影到行车道上的光区段5,其中每个光源序列分别关联有光区段5。光源6和投影机构3构成和设置为,使得各个光区段5无重叠地投影到行车道上。
如在图2中所看到的那样,由光源6产生的光的第一部分沿着直接指向投影机构3的第一射束方向8放射。光的第一部分由通过不同的光源序列产生的光组成。在此,每个光源序列产生用于特定的光区段5的光。
如在图3中所看到的那样,由光源6产生的光的第二部分沿着并非直接指向投影机构的第二射束方向9放射。光的第二部分,即散射光,通过如下状态形成:一些光源6或一些光源序列设置在投影机构3的焦点之外或焦线之外。该散射光于是能够在地面投影设备1的内面10上反射从而射到投影机构3上。这造成投影到行车道上的光区段5的对比度变差。
地面投影设备1具有吸收机构和/或转向机构11,其设立用于,至少部分地吸收和/或转向光的沿着第二射束方向9放射的第二部分,即散射光,使得光的第二部分不射到投影机构3上。图4示出地面投影设备1的吸收机构和/或转向机构11,其中为了简化视图未示出投影设备1的大量部件。吸收机构和/或转向机构11具有沟槽形的、横截面为锯齿形的结构,由此将光转向或折射为,使得光不再能射到投影机构3上。吸收机构和/或转向机构11还能够由吸收光的材料制造。
图5示出借助于地面投影设备1投影到行车道上的光区段5,所述光区段基本上条形地构成。光区段5分别在距机动车辆不同的距离中投影到行车道上。
如在图3和6中图解说明的那样,地面投影设备1具有至少部分地围绕光源6和投影机构3的壳体12,其中壳体12的至少一个内面10具有吸收机构和/或转向机构11。在所示出的实施例中,吸收机构或转向机构11分别固定在壳体12的上部的内面和下部的内面10上。壳体12形状配合地围绕投影机构3的边缘区域,其中所述吸收机构和/或转向机构11设置在壳体12之内直至投影机构3的正前方。在图6中还示出固定设备15,借助于所述固定设备能够将地面投影设备1固定到机动车辆13上,例如固定在机动车辆13的侧视镜上。
地面投影设备1包括用于检测行驶方向指示信号的(未示出的)通信机构,并且还设立用于实现在时间上与激活机动车辆的行驶方向指示器同步地激活光区段5的放射。在此,多个光源6能够与行驶方向指示器同时被激活,其中借助于投影设备3将相应的光区段5投影到行车道上。然而,光源6也能够在不同的时间点,例如交替地或相继被激活,使得借助于投影机构3能够将呈不同的光信号或照明图案形式的光区段5投影到行车道上。
如在图6中所示出的那样,地面投影设备尤其包括冷却设备14,所述冷却设备优选与发光机构2热接触并且设立用于将热量从发光机构2导出。冷却设备14例如能够设置在壳体12之内,之外或至少部分地在壳体12之外。此外,地面投影设备1能够包括固定设备15,借助于所述固定设备可将地面投影设备1固定在机动车辆上,例如机动车辆的外后视镜上。固定设备15能够具有电子部件,所述电子部件设立用于,当地面投影设备1固定在机动车辆上时,给地面投影设备1供应能量。

Claims (14)

1.一种用于机动车辆的地面投影设备(1),所述地面投影设备用于产生至少一个地面投影,其中所述地面投影设备(1)具有照明机构(2)和投影机构(3),优选至少一个投影透镜(4),其中所述照明机构(2)设立用于产生光并且将光至少部分地放射到所述投影机构(3)上,其中所述投影机构(3)设立用于,在所述地面投影设备(1)装入所述机动车辆的状态中,将由所述照明机构(2)放射到所述投影机构(3)上的光在所述机动车辆的侧面投影到行车道上作为地面投影,其中所述地面投影包括至少两个彼此间隔开的光区段(5),其中所述发光机构(2)为此具有至少两个可单独操控的光源(6),其中每个光区段(5)关联有至少一个光源(6),其中所述投影机构(3)具有焦点或焦线,其中所述至少两个光源(6)中的至少一个光源相对于所述投影机构(3)的焦点或焦线错开地设置,其中由所述至少两个光源(6)产生的光的第一部分沿着直接指向所述投影机构(3)的第一射束方向(8)放射,其中由所述至少两个光源(6)中的至少一个光源产生的光的第二部分在不直接指向所述投影机构(3)的第二射束方向(9)上放射,
其特征在于,
所述地面投影设备(1)具有吸收机构和/或转向机构(11),所述吸收机构和/或转向机构设立用于将所述光的沿着所述第二射束方向(9)放射的第二部分至少部分地吸收和/或转向,使得所述光的第二部分不射到所述投影机构(3)上。
2.根据权利要求1所述的地面投影设备(1),其中所述至少两个光区段(5)基本上条形地构成。
3.根据权利要求1或2所述的地面投影设备(1),其中所述至少两个光源(6)中的至少一个光源的错开在所述地面投影设备(1)的装入状态中沿着竖直方向构成。
4.根据上述权利要求中任一项所述的地面投影设备(1),其中所述发光机构(2)包括多个光源(6),所述光源在电路板(7)上以竖直地彼此重叠的光源序列设置,其中优选地,各个光源序列分别具有不同数量的光源(6),所述光源水平地并排设置。
5.根据权利要求4所述的地面投影设备(1),其中所述光源序列的数量对应于投影到所述行车道上的光区段(5)的数量。
6.根据权利要求5所述的地面投影设备(1),其中每个光源序列分别关联有光区段(5)。
7.根据上述权利要求中任一项所述的地面投影设备(1),其中所述至少两个光源(6)和所述投影机构(3)构成和设置为,使得至少两个光区段(5)能够无重叠地投影到所述行车道上。
8.根据上述权利要求中任一项所述的地面投影设备(1),其中所述至少两个光源(6)和所述投影机构(3)构成和设置为,使得所述至少两个光区段(5)能够分别在距所述机动车辆不同的距离中投影到所述行车道上。
9.根据上述权利要求中任一项所述的地面投影设备(1),其中所述地面投影设备(1)具有至少部分地围绕所述至少两个光源(6)和所述投影机构(3)的壳体(12),其中所述壳体(12)的至少一个内面(10)具有吸收机构和/或转向机构(11)。
10.根据权利要求9所述的地面投影设备(1),其中所述壳体(12)形状配合地围绕所述投影机构(3)的边缘区域,其中所述吸收机构和/或所述转向机构(11)设置在所述壳体(12)之内直至所述投影机构(3)正前方。
11.根据上述权利要求中任一项所述的地面投影设备(1),其中所述地面投影设备(1)具有用于检测行驶方向指示信号的通信机构,并且所述地面投影设备设立用于实现在时间上与激活所述机动车辆的行驶方向指示器同步地激活所述光区段(5)的放射。
12.根据上述权利要求中任一项所述的地面投影设备(1),其中所述地面投影设备(1)的所述投影机构(3)包括刚好一个唯一的投影透镜(4),尤其自由曲面透镜,其中所有产生所述光区段(5)的光源的光的第一部分转向到所述唯一的投影透镜(4)上。
13.一种机动车辆,所述机动车辆包括根据权利要求中任一项所述的地面投影设备(1)。
14.根据权利要求13所述的机动车辆,其中所述地面投影设备(1)固定在所述机动车辆的至少一个外后视镜上。
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