CN110594696A - 车照明装置 - Google Patents
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- CN110594696A CN110594696A CN201910508629.XA CN201910508629A CN110594696A CN 110594696 A CN110594696 A CN 110594696A CN 201910508629 A CN201910508629 A CN 201910508629A CN 110594696 A CN110594696 A CN 110594696A
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Classifications
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- 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
- F21S41/25—Projection lenses
- F21S41/255—Lenses with a front view of circular or truncated circular outline
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
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- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
- F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
- F21S41/151—Light emitting diodes [LED] arranged in one or more lines
- F21S41/153—Light emitting diodes [LED] arranged in one or more lines arranged in a matrix
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- 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
- F21S41/24—Light guides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
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- 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
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
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- F21S41/322—Optical layout thereof the reflector using total internal reflection
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- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
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- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
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- F21S41/365—Combinations of two or more separate reflectors successively reflecting the light
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- F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
- F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
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- 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
- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
- F21W2102/10—Arrangement or contour of the emitted light
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
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- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
- F21W2102/10—Arrangement or contour of the emitted light
- F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
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- F21W2102/10—Arrangement or contour of the emitted light
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Abstract
本发明提供了一种车照明装置(1),该车照明装置(1)包括适于发射近光和信号光的近光光源(2)、膜元件(3)和主光学元件(4)。主光学元件(4)包括第一区域(41)和第二区域(42)。第一区域(41)适用于接收还未被膜元件(3)反射的近光的一部分并投射近光图案,并且第二区域(42)适用于接收还未被膜元件(3)反射的信号光的一部分并投射信号光图案。主光学元件(4)的第二区域(42)的至少一部分是经过处理的,以提供光漫射。
Description
技术领域
本发明属于用于机动车辆的灯的领域,并且更具体地,涉及提供近光和信号光的车前灯的设计。
背景技术
在照明装置必须满足的一组规则中,存在一些与信号光相关的规则。该信号光是近光的一部分,该近光负责提供一些光,以便驾驶员能够看到在其头部上方的信号。
因此,该信号光应该足够强以能够实现该视觉(vision),但是应该足够低以便使可能遇到该车辆的物体或人不眩目。
在近光和信号光之间的边界通常通过折叠器来实现,该折叠器仅允许少量光线越过限定近光的截止线。因此,信号光不是非常均匀的。
因此,寻求一种改进该信号光的均匀性的方法。
发明内容
本发明通过提供根据权利要求1所述的车照明装置来提供对该问题的解决方案。本发明的优选实施例在从属权利要求中限定。
除非另外定义,否则本文使用的所有术语(包括技术术语和科学术语)应被解释为本领域中的惯例。还应当理解,除非在此明确定义,否则,通常使用的术语也应当被解释为相关领域中的惯例,而不是理想化的或过度正式的意义。
在本文中,术语“包括”及其派生词(例如“包含”等)不应被理解为排除性的,即,这些术语不应被解释为排除所描述和限定的内容可能包括另外的元件、步骤等的可能性。
在第一发明方面,本发明提供了一种车照明装置,该车照明装置包括:
至少一个近光光源,所述至少一个近光光源适于发射近光和信号光;
具有前边缘的膜元件,该膜元件被布置成用于接收和反射近光和信号光的至少一部分;
具有第一区域和第二区域的主光学元件,第一区域适用于接收还未被膜元件反射的近光的一部分并投射近光图案,以及第二区域适用于接收还未被膜元件反射的信号光的一部分并投射信号光图案;
其中,主光学元件的第二区域的至少一部分是经过处理的,以提供光漫射。
对应于膜元件的前边缘的近光光线必须被解释为由近光光源的投射的极限角产生的近光光线,低于该极限角,初级近光(primary low beam)被膜元件反射。
该照明装置实现了用于由主光学元件的第二区域投射的信号光的更均匀的图案。
在一些特定的实施例中,主光学元件的第二区域的至少一部分是经过表面处理的,以提供光漫射。
这种表面处理易于应用并且提供了所需要的光漫射,从而改善了由主光学元件的该第二区域投射的信号光的均匀性。
在一些特定的实施例中,表面处理包括粒化。
粒化是表面处理的特别有利的示例,其易于应用并且在改善信号光的均匀性方面提供良好的结果。
在一些特定的实施例中,第二区域包括内表面和外表面,内表面比外表面更靠近膜元件,并且第二区域的经过表面处理的所述至少一部分位于内表面上。在不同的实施例中,这种处理位于外表面上。该表面处理可以应用于主光学元件的任何面中。这种选择将取决于具体的处理和制造工艺。
在一些特定的实施例中,主光学元件的整个第二区域是经过处理的。
尽管处理可以仅应用在第二区域的一部分中,但是在整个第二区域中的应用提供了更好的结果。
在一些特定的实施例中,近光光源包括固态光源和初级光学元件(primaryoptical element)。
术语“固态”是指由固态场致发光电(electroluminescence)发射的光,该场致发光电使用半导体以将电转换为光。与白炽灯照明相比,固态照明产生了具有减少的热生成和更少的能量耗散的可见光。与易碎的玻璃管/灯泡和长、细的灯丝线相比,固态电子照明装置的通常小质量提供了对冲击和振动的更大的抵抗力。固态电子照明装置还消除了灯丝蒸发,潜在地增加了照明装置的寿命。这些类型的照明的一些示例包括半导体发光二极管(LED)、有机发光二极管(OLED)或聚合物发光二极管(PLED)作为发光源,而不是电灯丝、等离子体或气体。
初级光学元件旨在投射第一近光图案和第一信号光图案,该第一信号光图案适于由主光学元件投射。
在一些特定的实施例中,初级光学元件是准直器。准直器为这种应用提供了最佳的光学性能。准直器能够将来自独特光源的发散光束转换成平行分布的光束。
在一些特定的实施例中,主光学元件是外透镜。车照明装置的外透镜可以以不再需要另外的部件的方式执行该功能。
在一些特定的实施例中,膜元件是不透明的折叠器。可选地,膜元件是具有透明表面的元件(例如光导),该透明表面起到膜的作用,该膜根据全内反射的原理回落。膜元件不一定是不透明的元件,而是仅适于反射次级近光(secondary low beam)的至少一部分(例如旨在通过全内反射来反射光的透明元件)。
在一些特定的实施例中,车照明装置还包括远光模块。
附图说明
为了完成描述并为了提供对本发明的更好理解,提供了一组附图。所述附图形成说明书的整体部分,并且示出了本发明的实施例,该实施例不应被解释为限制本发明的范围,而是仅作为如何实施本发明的示例。附图包括下列图:
图1示出了根据本发明的车照明装置。
图2a和2b示出了根据本发明的照明装置的效果与根据现有技术的照明装置的效果之间的比较。
图3示出了根据本发明的已经安装在机动车辆中的照明装置。
具体实施方式
充分详细地描述了示例性实施例,以使本领域普通技术人员能够体现和实现这里描述的系统和过程。重要的是要理解,可以以许多替代的形式提供实施例,并且不应将其解释为限于这里阐述的示例。
因此,尽管可以以各种方式修改实施例并采用各种替代形式,但其具体实施例在附图中示出并且在下面作为示例详细描述。但无意限制于所公开的特定形式。相反,应当包括落入所附权利要求的范围内的所有修改、等同物和替代物。在整个附图和具体实施方式的适当位置,示例性实施例的元件始终由相同的附图标记表示。
图1示出了根据本发明的车辆照明装置1,该车辆照明装置1包括下列元件:
近光光源2;
具有前边缘31的折叠器3;
外透镜4;和
远光模块6。
在该图中示出的近光光源2适于发射近光和信号光。
折叠器3包括前边缘31。该折叠器3被布置成用于接收和反射近光和信号光的至少一部分。前边缘31负责产生根据规则限定这些光束的形状和尺寸的截止线。
外透镜4包括第一区域41和第二区域42。第一区域41适用于接收还未被折叠器3反射的近光的一部分并投射近光图案。而第二区域42适用于接收还未被折叠器3反射的信号光的一部分并投射信号光图案。
在这种情况下,整个第二区域42在透镜的外表面中已经接受了粒化处理。
为了实现其目的,近光光源2包括多个LED和准直器5。
图2a和2b示出了根据本发明的照明装置的效果与根据现有技术的照明装置的效果之间的比较。
图2a示出了由根据现有技术的车辆照明装置投射的信号光的光照图。该光照图示出了几个旨在照亮道路上的信号的光带61。在光带之间,存在提供较低发光强度的暗带62。
图2b示出了相同的光照图,不过属于由根据本发明的车照明装置投射的信号光。该光照图还包括光带61′,但是由于外透镜中的表面处理,每个光带61′之间的暗区域62′已经模糊,因此获得更加连续的光图案。
图3示出了根据本发明的已经安装在机动车辆100中的照明装置1。
这种照明装置能够满足照明要求,并且还提供更好的信号光图案,而不存在影响这种照明装置的尺寸或者内部部件的较大改造。因此,这种改进可以结合到现有的照明装置中。
Claims (11)
1.一种车照明装置(1),包括:
至少一个近光光源(2),所述至少一个近光光源(2)适于发射近光和信号光;
具有前边缘(31)的膜元件(3),所述膜元件(3)被布置成用于接收和反射所述近光和所述信号光的至少一部分;
具有第一区域(41)和第二区域(42)的主光学元件(4),所述第一区域(41)适用于接收还未被所述膜元件(3)反射的所述近光的一部分并投射近光图案,并且所述第二区域(42)适用于接收还未被所述膜元件(3)反射的所述信号光的一部分并投射信号光图案;
其中,所述主光学元件(4)的所述第二区域(42)的至少一部分是经过处理的,以提供光漫射。
2.根据权利要求1所述的车照明装置(1),其中,所述主光学元件(4)的所述第二区域(42)的至少一部分是经过表面处理的,以提供光漫射。
3.根据权利要求2所述的车照明装置(1),其中,所述表面处理包括粒化。
4.根据权利要求2或3中任一项所述的车照明装置(1),其中,所述第二区域(42)包括内表面和外表面,所述内表面比所述外表面更靠近所述膜元件(3),以及所述第二区域的经过表面处理的所述至少一部分位于所述内表面上。
5.根据权利要求2或3中任一项所述的车照明装置(1),其中,所述第二区域包括内表面和外表面,所述内表面比所述外表面更靠近所述膜元件(3),以及所述第二区域(42)的经过表面处理的所述至少一部分位于所述外表面上。
6.根据前述权利要求中任一项所述的车照明装置(1),其中,所述主光学元件(4)的整个第二区域(42)是经过处理的。
7.根据前述权利要求中任一项所述的车照明装置(1),其中,所述近光光源(2)包括固态光源和初级光学元件(5)。
8.根据权利要求7所述的车照明装置(1),其中,所述初级光学元件(5)是准直器。
9.根据前述权利要求中任一项所述的车照明装置(1),其中,所述主光学元件(4)是外透镜。
10.根据前述权利要求中任一项所述的车照明装置(1),其中,所述膜元件(3)是不透明的折叠器或具有透明表面的光学元件。
11.根据前述权利要求中任一项所述的车照明装置(1),还包括远光模块(6)。
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EP18382420.0A EP3581847A1 (en) | 2018-06-13 | 2018-06-13 | Automotive lighting device |
EP18382420.0 | 2018-06-13 |
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DE202005004080U1 (de) * | 2005-03-14 | 2005-07-07 | Zizala Lichtsysteme Gmbh | Linse für einen Fahrzeugscheinwerfer |
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US10690308B2 (en) | 2020-06-23 |
US20190383457A1 (en) | 2019-12-19 |
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