WO2013045307A1 - Vehicle light - Google Patents

Vehicle light Download PDF

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Publication number
WO2013045307A1
WO2013045307A1 PCT/EP2012/068301 EP2012068301W WO2013045307A1 WO 2013045307 A1 WO2013045307 A1 WO 2013045307A1 EP 2012068301 W EP2012068301 W EP 2012068301W WO 2013045307 A1 WO2013045307 A1 WO 2013045307A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
vehicle
window
lamp according
vehicle lamp
Prior art date
Application number
PCT/EP2012/068301
Other languages
German (de)
French (fr)
Inventor
Robert Spahl
Will Farrelly
Alicia Agius
Original Assignee
Ford Global Technologies, Llc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ford Global Technologies, Llc filed Critical Ford Global Technologies, Llc
Publication of WO2013045307A1 publication Critical patent/WO2013045307A1/en

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Classifications

    • 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
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/2661—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic mounted on parts having other functions
    • B60Q1/268—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic mounted on parts having other functions on windscreens or windows

Definitions

  • the invention relates to a vehicle lamp, in particular rear window brake lamp, with at least one light source and a light guide device, in which emitted light from the light source can be coupled and which has a coupling device for emitting at least a portion of the light.
  • cars must have a central and higher brake light in the rear window area in order to improve the visibility of the brake light.
  • the positioning of the brake light is complex and can restrict the driver's view to the rear.
  • optical fibers to reduce the size of the units or relocate.
  • vehicle lights are also known using optical fibers as brake lights, in which the optical fibers are each coupled to one side with a light source and on the other side have a decoupling to the emission of light , Both the light guide and the coupling and decoupling devices are arranged separately at the respective position or window or rear window of the vehicle.
  • the object of the present invention is to provide a vehicle lamp using light guides, in particular as a rear window brake light, which is constructed less expensive. This object is achieved by the reproduced in claim 1 vehicle lamp.
  • the vehicle window is used as the light guide, it is possible to achieve a particularly simple and compact design, which also does not limit the view of the driver or passengers.
  • the lighting can be designed particularly simply if, in addition, decoupling of the fed-in light takes place via the pane itself, in which the decoupling device is a bevelled and / or corrugated region of the vehicle window.
  • the decoupling device is a bevelled and / or corrugated region of the vehicle window.
  • corrugated area is meant the locations on the disk whose surface is so changed and has peaks and valleys, that the light guided in the disk is deflected at these locations by the elevations and depressions transversely to the disk.
  • this is the outer edge of the vehicle window and this is bevelled and / or fluted.
  • an optical emphasis of the Vehicle areas can be achieved by a circumferential illumination of the edge of the respective disc.
  • the decoupling device is formed by the light-reflecting particles and / or structures are embedded in the glass pane.
  • the decoupling device is formed by the light-reflecting particles and / or structures are embedded in the glass pane.
  • the embodiment according to the invention is suitable for the simple realization of a rear window brake light function.
  • a region corresponding to the brake light position of the vehicle window is chamfered and / or corrugated.
  • the light source is arranged at the base of the respective vehicle window, in particular in the vehicle door.
  • the corrugated area on the disc is formed by etching the disc by introducing appropriate patterns into the disc by means of a suitable acid and a mask.
  • the corrugation can also by any other suitable method, eg. B. by mechanical processing such as diamond grinding, are introduced into the disc. Further details, features and advantages of the invention will become apparent from the following description of an embodiment with reference to the drawing, in which
  • Fig. 1 shows a perspective schematic view of a side of a car
  • Fig. 2 is a perspective schematic view of the rear of the car of FIG.
  • FIG. 1 shows; 3 shows a schematic representation of a longitudinal section along the line AA from FIG. 1 and FIG. 4 shows an enlarged detail of the region B from FIG. 3.
  • a designated as a whole with 1 car is shown. It comprises a side door 2 with a side window 3, which in turn has a peripheral edge 4.
  • the car also includes a tailgate 5 with a rear window 6 and a raised centrally located brake light. 7
  • Both the side window 3 and the rear window 6 are designed as light guides and light sources 8 are arranged in the respective door or flap, which couple their light into the pane. The light is reflected at the respective disk surface and directed in the direction of the edge areas (see area B).
  • the outer edge 9 and 7 of the disc is bevelled and fluted, so that there the light is no longer reflected, but exits the disc and is accordingly visible as radiation.
  • a peripheral illumination of the outer edge of the disk is achieved in the side window 3.
  • lighting of the edge 7 is reached, which can thus serve as a rear window brake light.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

A vehicle light, in particular rear window brake light, with at least one light source (8) and an optical waveguide device, into which light emitted by the light source (8) can be coupled and which has a decoupling device for emitting at least some of the light, wherein the vehicle window (3, 6) is used as the optical waveguide.

Description

Fahrzeugleuchte  vehicle light
Beschreibung description
Die Erfindung betrifft eine Fahrzeugleuchte, insbesondere Heckscheibenbremsleuchte, mit wenigstens einer Lichtquelle und einer Lichtleitereinrichtung, in die von der Lichtquelle ausgestrahltes Licht einkoppelbar ist und die zur Ausstrahlung mindestens eines Teils des Lichts eine Auskoppeleinrichtung aufweist. The invention relates to a vehicle lamp, in particular rear window brake lamp, with at least one light source and a light guide device, in which emitted light from the light source can be coupled and which has a coupling device for emitting at least a portion of the light.
Gesetzlich ist vorgeschrieben, dass PKW eine zentral und höher angeordnete Bremsleuchte im Bereich der Heckscheibe aufweisen müssen, um die Sichtbarkeit der Bremsleuchte zu verbessern. Allerdings ist die Positionierung der Bremsleuchte aufwendig und kann zu dem die Sicht des Fahrers nach Hinten einschränken. By law, cars must have a central and higher brake light in the rear window area in order to improve the visibility of the brake light. However, the positioning of the brake light is complex and can restrict the driver's view to the rear.
Daher ist es bekannt, Lichtleiter einzusetzen, um die Baugröße der Einheiten zu verringern bzw. zu verlagern. Aus der DE 203 06 739 U1 und auch WO 2007/019934 A1 sind jeweils Fahrzeugleuchten unter Verwendung von Lichtleitern als Bremsleuchten bekannt, bei denen die Lichtleiter jeweils an einer Seite mit einer Lichtquelle gekoppelt sind und an der anderen Seite eine Auskoppelung zur Abstrahlung des Lichts aufweisen. Dabei sind sowohl der Lichtleiter als auch die Einkoppel- und Auskoppeleinrichtungen gesondert an der jeweiligen Position bzw. Fenster- oder Heckscheibe des Fahrzeugs angeordnet. Therefore, it is known to use optical fibers to reduce the size of the units or relocate. From DE 203 06 739 U1 and WO 2007/019934 A1 vehicle lights are also known using optical fibers as brake lights, in which the optical fibers are each coupled to one side with a light source and on the other side have a decoupling to the emission of light , Both the light guide and the coupling and decoupling devices are arranged separately at the respective position or window or rear window of the vehicle.
Entsprechend ist auch eine solche Anordnung aus der EP 0 495 685 B1 bekannt, bei der die Lichtleiter am Rand der Heckscheibe entlang geführt sind und in ein an die Scheibe angeklebtes Auskoppelelement zur Abstrahlung des Bremslichts angeschlossen sind. Demgegenüber besteht die Aufgabe der vorliegenden Erfindung darin, eine Fahrzeugleuchte unter Verwendung von Lichtleitern, insbesondere als Heckscheiben-Bremsleuchte, bereitzustellen, die weniger aufwendig aufgebaut ist. Diese Aufgabe wird durch die in Anspruch 1 wiedergegebene Fahrzeugleuchte gelöst. Accordingly, such an arrangement is known from EP 0 495 685 B1, in which the light guides are guided along the edge of the rear window and are connected in a decoupling element glued to the pane for emitting the brake light. In contrast, the object of the present invention is to provide a vehicle lamp using light guides, in particular as a rear window brake light, which is constructed less expensive. This object is achieved by the reproduced in claim 1 vehicle lamp.
Dadurch, dass als Lichtleiter die Fahrzeugscheibe verwendet wird, ist es möglich, einen besonders einfachen und kompakten Aufbau zu erreichen, der zudem die Sicht des Fahrers oder der Insassen nicht einschränkt. The fact that the vehicle window is used as the light guide, it is possible to achieve a particularly simple and compact design, which also does not limit the view of the driver or passengers.
Weiterhin kann so auf einfache Weise eine Beleuchtung der mit Scheiben versehenen Fahrzeugbereiche erreicht werden. Was z.B. bei einer seitlichen Verwendung die Sichtbarkeit des Fahrzeugs und somit die Sicherheit erhöht. Furthermore, lighting of the vehicle areas provided with windows can thus be achieved in a simple manner. What, for example when used laterally increases the visibility of the vehicle and thus safety.
Besonders einfach ist die Beleuchtung auszugestalten, wenn zusätzlich Auskopplung des eingespeisten Licht über die Scheibe selbst erfolgt, in dem die Auskoppeleinrichtung ein abgeschrägter und/oder geriffelter Bereich der Fahrzeugscheibe ist. Somit kann jede Scheibe ohne zusätzliche Prismen etc. an beliebigen Stellen das eingespeiste Licht abstrahlen. Der abgeschrägte und/oder geriffelte Bereich der Scheibe übernimmt die Aufgabe eines oder mehrere Prismen und lenkt die Lichtstrahlen sichtbar nach außen. The lighting can be designed particularly simply if, in addition, decoupling of the fed-in light takes place via the pane itself, in which the decoupling device is a bevelled and / or corrugated region of the vehicle window. Thus, each disc without additional prisms, etc. at any point radiate the fed light. The bevelled and / or corrugated portion of the disc takes on the task of one or more prisms and directs the light rays visible to the outside.
Unter dem geriffelten Bereich sind die Stellen auf der Scheibe zu verstehen, deren Oberfläche so verändert ist und Erhebungen und Vertiefungen aufweist, dass das in der Scheibe geleitete Licht an diesen Stellen durch die Erhebungen und Vertiefungen quer zur Scheibe abgelenkt wird. By the corrugated area is meant the locations on the disk whose surface is so changed and has peaks and valleys, that the light guided in the disk is deflected at these locations by the elevations and depressions transversely to the disk.
Besonders bevorzugt ist es, wenn es sich hierbei um die äußere Kante der Fahrzeugscheibe handelt und diese abgeschrägt und/oder geriffelt ist. Somit kann zusätzlich zu der Beleuchtungsfunktion eine optische Betonung der Fahrzeugbereiche erreicht werden, durch eine umlaufende Beleuchtung der Kante der jeweiligen Scheibe. It is particularly preferred if this is the outer edge of the vehicle window and this is bevelled and / or fluted. Thus, in addition to the lighting function, an optical emphasis of the Vehicle areas can be achieved by a circumferential illumination of the edge of the respective disc.
Vorteilhaft wird die Auskoppeleinrichtung gebildet, indem im Scheibenglas das Licht reflektierende Partikel und/oder Strukturen eingebettet sind. Dafür können bei der Herstellung der Scheibe Metallpartikel ins Glas im Bereich der Advantageously, the decoupling device is formed by the light-reflecting particles and / or structures are embedded in the glass pane. For the production of the disc metal particles into the glass in the area of
Auskoppeleinrichtung eingebracht werden. Outcoupling be introduced.
Insbesondere eignet sich die erfindungsgemäße Ausgestaltung zur einfachen Realisierung einer Heckscheibenbremslichtfunktion. Dazu ist ein die Bremslichtposition der Fahrzeugscheibe entsprechender Bereich abgeschrägt und/oder geriffelt. Dies hat den großen Vorteil, dass einerseits aufwendige Einbauten entfallen können und anderseits die Sicht des Fahrers nach hinten praktisch kaum beeinflusst ist. In particular, the embodiment according to the invention is suitable for the simple realization of a rear window brake light function. For this purpose, a region corresponding to the brake light position of the vehicle window is chamfered and / or corrugated. This has the great advantage that on the one hand complex installations can be omitted and on the other hand, the driver's view to the rear is practically hardly affected.
Es bietet sich an, die Lichtquelle an der Basis der jeweiligen Fahrzeugscheibe anzuordnen, insbesondere in der Fahrzeugtür. It is advisable to arrange the light source at the base of the respective vehicle window, in particular in the vehicle door.
Bevorzugt ensteht der geriffelte Bereich auf der Scheibe durch Ätzen der Scheibe, indem mittels einer geeigneten Säure und einer Maskierung entsprechende Muster in die Scheibe eingebracht werden. Die Riffelung kann aber auch durch jedes geeignete andere Verfahren, z. B. auch durch mechanische Bearbeitung wie Diamantschliff, in die Scheibe eingebracht werden. Weitere Einzelheiten, Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispiels anhand der Zeichnung, in der Preferably, the corrugated area on the disc is formed by etching the disc by introducing appropriate patterns into the disc by means of a suitable acid and a mask. However, the corrugation can also by any other suitable method, eg. B. by mechanical processing such as diamond grinding, are introduced into the disc. Further details, features and advantages of the invention will become apparent from the following description of an embodiment with reference to the drawing, in which
Fig. 1 eine perspektivische schematische Ansicht einer Seite eines PKW zeigt; Fig. 1 shows a perspective schematic view of a side of a car;
Fig. 2 eine perspektivische schematische Ansicht des Hecks des PKW aus Figur Fig. 2 is a perspective schematic view of the rear of the car of FIG
1 zeigt; Fig. 3 eine schematische Darstellung eines Längsschnitts entlang der Linie A-A aus Figur 1 und Fig. 4 ein vergrößerter Ausschnitt des Bereichs B aus Figur 3. 1 shows; 3 shows a schematic representation of a longitudinal section along the line AA from FIG. 1 and FIG. 4 shows an enlarged detail of the region B from FIG. 3.
In den Figuren ist ein als Ganzes mit 1 bezeichnete PKW gezeigt. Er umfasst eine Seitentür 2 mit einer Seitenscheibe 3, die wiederum einen umlaufenden Rand 4 aufweist. Der PKW umfasst ebenfalls eine Heckklappe 5 mit einer Heckscheibe 6 und einer erhöhten zentral angeordneten Bremsleuchte 7. In the figures, a designated as a whole with 1 car is shown. It comprises a side door 2 with a side window 3, which in turn has a peripheral edge 4. The car also includes a tailgate 5 with a rear window 6 and a raised centrally located brake light. 7
Sowohl die Seitenscheibe 3 als auch die Heckscheibe 6 sind als Lichtleiter ausgebildet und in der jeweiligen Tür bzw. Klappe sind Lichtquellen 8 angeordnet, die ihr Licht in die Scheibe einkoppeln. Das Licht wird an der jeweiligen Scheibenoberfläche reflektiert und in Richtung der Kantenbereiche (vgl. Bereich B) geleitet. Both the side window 3 and the rear window 6 are designed as light guides and light sources 8 are arranged in the respective door or flap, which couple their light into the pane. The light is reflected at the respective disk surface and directed in the direction of the edge areas (see area B).
Dort ist die Außenkante 9 bzw. 7 der Scheibe abgeschrägt und geriffelt, so dass dort das Licht nicht mehr reflektiert wird, sondern aus der Scheibe austritt und entsprechend als Abstrahlung sichtbar ist. There, the outer edge 9 and 7 of the disc is bevelled and fluted, so that there the light is no longer reflected, but exits the disc and is accordingly visible as radiation.
Entsprechende wird bei der Seitenscheibe 3 eine umlaufende Beleuchtung der Außenkante der Scheibe erreicht. Bei der Heckklappe 5 wird eine Beleuchtung des Rands 7 erreicht, der somit als Heckscheibenbremsleuchte dienen kann. Correspondingly, a peripheral illumination of the outer edge of the disk is achieved in the side window 3. In the tailgate 5 lighting of the edge 7 is reached, which can thus serve as a rear window brake light.
Im Innenraum ist das jeweilige Licht bzw. dessen Abstrahlung durch eine geeignete Platzierung der Dichtungen bzw. Rahmen 10 nicht störend sichtbar. In the interior, the respective light or its radiation by a suitable placement of the seals or frame 10 is not disturbing visible.

Claims

Patentansprüche claims
1 . Fahrzeugleuchte, insbesondere Heckscheibenbremsleuchte, mit wenigstens einer Lichtquelle und einer Lichtleitereinrichtung, in die von der Lichtquelle ausgestrahltes Licht einkoppelbar ist und die zur Ausstrahlung mindestens eines Teils des Lichts eine Auskoppeleinrichtung aufweist, 1 . Vehicle lamp, in particular rear window brake lamp, with at least one light source and an optical waveguide device, in which light emitted by the light source can be coupled in and which has a decoupling device for emitting at least part of the light,
dadurch gekennzeichnet, dass  characterized in that
als Lichtleiter die Fahrzeugscheibe verwendet wird.  as a light guide, the vehicle window is used.
2. Fahrzeugleuchte nach Anspruch 1 , 2. Vehicle lamp according to claim 1,
dadurch gekennzeichnet, dass  characterized in that
die Auskoppeleinrichtung ein abgeschrägter und/oder geriffelter Bereich der Fahrzeugscheibe ist.  the decoupling device is a bevelled and / or corrugated region of the vehicle window.
3. Fahrzeugleuchte nach Anspruch 2 3. Vehicle lamp according to claim 2
dadurch gekennzeichnet, dass  characterized in that
der geriffelte Bereich durch Ätzen und/oder Schleifen der Scheibe hergestellt ist.  the corrugated portion is made by etching and / or grinding the disc.
4. Fahrzeugleuchte nach Anspruch 2 oder 3, 4. A vehicle lamp according to claim 2 or 3,
dadurch gekennzeichnet, dass  characterized in that
die Außenkante der Fahrzeugscheibe abgeschrägt und/oder geriffelt ist.  the outer edge of the vehicle window is chamfered and / or corrugated.
5. Fahrzeugleuchte nach einem der vorherigen Anprüche, 5. Vehicle lamp according to one of the preceding claims,
dadurch gekennzeichnet, dass  characterized in that
die Auskoppeleinrichtung gebildet wird, indem im Scheibenglas das Licht reflektierende Partikel und/oder Strukturen eingebettet sind.  the decoupling device is formed by the light-reflecting particles and / or structures are embedded in the glass pane.
6. Fahrzeugleuchte nach einer der vorhergehenden Ansprüche, 6. A vehicle lamp according to one of the preceding claims,
dadurch gekennzeichnet, dass die Bremslichtposition der Fahrzeugscheibe einen Auskoppeleinrichtung enthält. characterized in that the brake light position of the vehicle window includes a decoupling device.
7. Fahrzeugleuchte nach einer der vorhergehenden Ansprüche, 7. A vehicle lamp according to one of the preceding claims,
dadurch gekennzeichnet, dass  characterized in that
die Lichtquelle an der Basis der Fahrzeugscheibe angeordnet ist, insbesondere in der Fahrzeugtür.  the light source is arranged at the base of the vehicle window, in particular in the vehicle door.
PCT/EP2012/068301 2011-09-26 2012-09-18 Vehicle light WO2013045307A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201110083368 DE102011083368A1 (en) 2011-09-26 2011-09-26 vehicle light
DE102011083368.4 2011-09-26

Publications (1)

Publication Number Publication Date
WO2013045307A1 true WO2013045307A1 (en) 2013-04-04

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Application Number Title Priority Date Filing Date
PCT/EP2012/068301 WO2013045307A1 (en) 2011-09-26 2012-09-18 Vehicle light

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WO (1) WO2013045307A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015006917A1 (en) 2015-05-28 2016-02-25 Daimler Ag Lighting device for a vehicle
DE102017202924A1 (en) 2017-02-23 2018-08-23 Volkswagen Aktiengesellschaft motor vehicle
DE102017207435A1 (en) * 2017-05-03 2018-11-08 Volkswagen Aktiengesellschaft Method for operating an externally visible illumination of a motor vehicle and motor vehicle for carrying out the method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0495685B1 (en) 1991-01-18 1995-05-03 Nippon Sheet Glass Co. Ltd. Rear window stop lamp for motor vehicles
DE10147259A1 (en) * 2001-09-26 2003-04-24 Kastriot Merlaku Brake light system for a model motor vehicle, shines light along the windshield from a source at an edge of the shield to a reflector/refractor which projects it outwards
DE20306739U1 (en) 2003-04-30 2003-08-07 Fer Fahrzeugelektrik Gmbh Motor vehicle light, e.g. indicator lamp, includes optical conductor with rear structures and reflector, which return light back into optical conductor, for final departure through front surface
DE10241378A1 (en) * 2002-09-06 2004-03-18 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Light for motor vehicle for signaling car alarm setting, has different color diode light sources in vehicle side window providing light to emitting signaling surface
US20050088850A1 (en) * 2003-10-14 2005-04-28 Miller John F. Illuminatable windshield assembly
WO2007019934A1 (en) 2005-08-12 2007-02-22 Bayerische Motoren Werke Aktiengesellschaft Light for motor vehicles
WO2007077099A1 (en) * 2006-01-06 2007-07-12 Pilkington Automotive Deutschland Gmbh Vehicle glazing with light-guiding assembly

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0495685B1 (en) 1991-01-18 1995-05-03 Nippon Sheet Glass Co. Ltd. Rear window stop lamp for motor vehicles
DE10147259A1 (en) * 2001-09-26 2003-04-24 Kastriot Merlaku Brake light system for a model motor vehicle, shines light along the windshield from a source at an edge of the shield to a reflector/refractor which projects it outwards
DE10241378A1 (en) * 2002-09-06 2004-03-18 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Light for motor vehicle for signaling car alarm setting, has different color diode light sources in vehicle side window providing light to emitting signaling surface
DE20306739U1 (en) 2003-04-30 2003-08-07 Fer Fahrzeugelektrik Gmbh Motor vehicle light, e.g. indicator lamp, includes optical conductor with rear structures and reflector, which return light back into optical conductor, for final departure through front surface
US20050088850A1 (en) * 2003-10-14 2005-04-28 Miller John F. Illuminatable windshield assembly
WO2007019934A1 (en) 2005-08-12 2007-02-22 Bayerische Motoren Werke Aktiengesellschaft Light for motor vehicles
WO2007077099A1 (en) * 2006-01-06 2007-07-12 Pilkington Automotive Deutschland Gmbh Vehicle glazing with light-guiding assembly

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