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DE4228877A1 - Vanity mirror with tubular lamp for motor vehicle - has multifaceted reflector at each end of light guide for broadening region illuminated by single lamp - Google Patents

Vanity mirror with tubular lamp for motor vehicle - has multifaceted reflector at each end of light guide for broadening region illuminated by single lamp

Info

Publication number
DE4228877A1
DE4228877A1 DE4228877A DE4228877A DE4228877A1 DE 4228877 A1 DE4228877 A1 DE 4228877A1 DE 4228877 A DE4228877 A DE 4228877A DE 4228877 A DE4228877 A DE 4228877A DE 4228877 A1 DE4228877 A1 DE 4228877A1
Authority
DE
Germany
Prior art keywords
lamp
mirror
light guide
light
motor vehicle
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.)
Ceased
Application number
DE4228877A
Other languages
German (de)
Inventor
Ingo Dipl Ing Boeckmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Volkswagen AG
Original Assignee
Volkswagen AG
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 Volkswagen AG filed Critical Volkswagen AG
Priority to DE4228877A priority Critical patent/DE4228877A1/en
Publication of DE4228877A1 publication Critical patent/DE4228877A1/en
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
    • G02B6/0021—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses
    • 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
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/20—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for lighting specific fittings of passenger or driving compartments; mounted on specific fittings of passenger or driving compartments
    • B60Q3/252—Sun visors
    • 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
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/60—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects
    • B60Q3/62—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides
    • B60Q3/64—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides for a single lighting device
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0045—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide
    • G02B6/0046—Tapered light guide, e.g. wedge-shaped light guide
    • G02B6/0048—Tapered light guide, e.g. wedge-shaped light guide with stepwise taper
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/007—Incandescent lamp or gas discharge lamp
    • G02B6/0071—Incandescent lamp or gas discharge lamp with elongated shape, e.g. tube

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The reflecting surface (2) is vapour-deposited on the back of a light-guide (1) recessed into the sun visor (12). A short strip lamp (4) housed in a cavity (3) emits light in both directions through polished faces (5,6). The ends (7,8) of the rear face of the light guide (1) are stepped with facets angled at 45 deg. to the normal. The extreme ends are covered by a screen (9) which serves also for fixing to the visor (12). ADVANTAGE - Electrical energy consumption is reduced by using multiple reflections of single lamp in structure with min. parts count.

Description

Die Erfindung betrifft einen Spiegel gemäß dem Oberbegriff des Patentanspruchs 1. Derartige Spiegel werden als Kosmetikspiegel häufig in Sonnenblenden von Kraftfahrzeugen eingebaut. Sie be­ sitzen an zwei sich gegenüberliegenden Rändern der rechteckigen Spiegelfläche milchige Glas- oder Kunststoffscheiben, unter de­ nen individuelle Lampen zur Bildung von Leuchtflächen angeordnet sind.The invention relates to a mirror according to the preamble of Claim 1. Such mirrors are called cosmetic mirrors often installed in motor vehicle sun visors. You be sit on two opposite edges of the rectangular Mirror surface of milky glass or plastic panes, under de NEN individual lamps arranged to form luminous surfaces are.

Zum Stand der Technik (US-PS 47 88 630, B 60 Q 3/02) gehört auch die Verwendung von beispielsweise durch Körper aus Acryl gebil­ deten Lichtleitern im Rahmen von Innen- und Außenbeleuchtungen von Kraftfahrzeugen.The prior art (US-PS 47 88 630, B 60 Q 3/02) also belongs the use of, for example, gebil by body made of acrylic detectors in the context of indoor and outdoor lighting of motor vehicles.

Der Erfindung liegt die Aufgabe zugrunde, einen gattungsgemäßen Spiegel zu schaffen, der bei einfachem Aufbau zur Gewinnung von mehr als einer Leuchtfläche mit einer einzigen Lampe auskommt.The invention has for its object a generic To create mirrors with a simple structure for obtaining more than one luminous area manages with a single lamp.

Die erfindungsgemäße Lösung dieser Aufgabe besteht in den kenn­ zeichnenden Merkmalen des Hauptanspruchs, vorteilhafte Ausbil­ dungen der Erfindung beschreiben die Unteransprüche.The inventive solution to this problem consists in the drawing features of the main claim, advantageous training The invention describes the subclaims.

Die Erfindung erschöpft sich also nicht im Einsatz eines - an sich bekannten - Lichtleiters, sondern beinhaltet auch eine spe­ zielle Ausbildung desselben, so daß er sowohl zur Leitung des Lichts und zur Bildung zumindest einer der Leuchtflächen als auch als Träger der Spiegelschicht dient. Daher ist die Erfin­ dung nicht nur besonders montagefreundlich, sondern besitzt auch den Vorteil der Reduzierung der Anzahl der erforderlichen Lampen und daher des elektrischen Energieverbrauchs, was in Kraftfahr­ zeugen bekanntlich ein wichtiger Gesichtspunkt ist.The invention is therefore not limited to the use of one known - optical fiber, but also includes a spe zielle training of the same, so that he both to manage the Light and to form at least one of the illuminated areas as  also serves as a support for the mirror layer. Hence the inven not only particularly easy to install, but also has the advantage of reducing the number of lamps required and therefore of electrical energy consumption, what is in motor driving is known to be an important consideration.

Ein Ausführungsbeispiel der Erfindung für den Fall eines in eine Sonnenblende eines Kraftfahrzeugs einzubauenden Kosmetikspiegels wird im folgenden anhand der Zeichnung erläutert, deren Fig. 1, 2 und 3 die wesentlichen Bestandteile des Spiegels in Vorder­ ansicht, im Querschnitt und in Draufsicht wiedergeben, während Fig. 4 die Ausbildung einer Lichtaustrittsfläche in Vergröße­ rung zeigt.An embodiment of the invention for the case of a cosmetic mirror to be installed in a sun visor of a motor vehicle is explained below with reference to the drawing, FIGS. 1, 2 and 3 showing the essential components of the mirror in front view, in cross section and in top view, while FIG. 4 shows the formation of a light exit surface in enlargement.

Den Hauptbestandteil des Spiegels bildet der allgemein mit 1 be­ zeichnete Lichtleiter, der auf seiner im eingebauten Zustand rückseitigen Fläche durch Aufdampfen mit der Spiegelschicht 2 versehen ist und der die nutartige Ausnehmung 3 zur Aufnahme der Soffittenlampe 4 aufweist. Die Aufnahme 3 besitzt zwei sich be­ züglich der Lampe 4 gegenüberstehende, senkrecht zur Ebene des Lichtleiters 1 weisende polierte Lichteintrittsflächen 5 und 6, die von der Lichtquelle 4 emittierte Lichtstrahlung zur jeweils einer der schräg zur Ebene des Lichtleiters 1 weisenden Licht­ austrittsflächen 7 und 8 schicken. Diese Lichtaustrittsflächen 7 und 8 besitzen, wie Fig. 4 vergrößert zeigt, eine Riffelung mit unter 45 Grad gegen die Ebene der Spiegelfläche 2 verlaufenden Flanken.The main constituent of the mirror is the light guide, generally designated 1 , which is provided on its rear surface in the installed state by vapor deposition with the mirror layer 2 and which has the groove-like recess 3 for receiving the festoon lamp 4 . The receptacle 3 has two be with respect to the lamp 4 opposite, perpendicular to the plane of the light guide 1 facing light entry surfaces 5 and 6 , the light radiation emitted by the light source 4 to each one of the obliquely facing the plane of the light guide 1 light exit surfaces 7 and 8 send . These light exit surfaces 7 and 8 have, as shown in FIG. 4 enlarged, a corrugation with flanks running at 45 degrees against the plane of the mirror surface 2 .

In dem betrachteten Ausführungsbeispiel ist angenommen, daß der Spiegel nur zwei Leuchtflächen, nämlich gebildet durch die bei­ den Lichtaustrittsflächen 7 und 8 zu beiden Seiten der Licht­ quelle 4, besitzt. Grundsätzlich ist es auch möglich, daß der Lichtleiter im Bereich seines oberen und/oder unteren Randes zur Gewinnung von Lichtaustrittsflächen ausgelegt ist, die dann ebenfalls von der Lampe 4 her mit Licht versorgt werden. In the considered embodiment it is assumed that the mirror has only two luminous surfaces, namely formed by the light exit surfaces 7 and 8 on both sides of the light source 4 . In principle, it is also possible for the light guide in the region of its upper and / or lower edge to be designed for obtaining light exit surfaces, which are then also supplied with light by the lamp 4 .

In üblicher Weise wird man der im eingebauten Zustand vorderen Seite des Lichtleiters 1 eine Blende 9 zuordnen, die zur Ab­ deckung der äußersten Randbereiche sowie der Lampe 4 und zur Be­ festigung an der Sonnenblende 12 dient.In a conventional manner, one will assign an aperture 9 to the front side of the light guide 1 in the installed state, which serves to cover the outermost edge regions and the lamp 4 and for fastening to the sun visor 12 .

Wie die Fig. 1 und 3 zeigen, können an den Lichtleiter auch gleichsam als Fenster 10 und 11 dienende Vorsprünge angeformt sein.As FIGS. 1 and 3 show, projections serving as windows 10 and 11 can also be molded onto the light guide.

Mit der Erfindung ist demgemäß ein gattungsgemäßer Spiegel ge­ schaffen, der mit einem Minimum von Einzelteilen (geringe Re­ paraturanfälligkeit) und einem Minimum von elektrischer Energie auskommt.With the invention is accordingly a generic mirror ge create with a minimum of individual parts (low re susceptibility to parature) and a minimum of electrical energy gets along.

Claims (4)

1. Spiegel, insbesondere Kosmetikspiegel für ein Kraftfahrzeug, mit zumindest zwei sich an Rändern einer Spiegelfläche er­ streckenden, lampenbetriebenen Leuchtflächen, gekennzeichnet durch einen auf einer im eingebauten Zustand rückseitigen Fläche zur Bildung der Spiegelfläche (2) verspiegelten Licht­ leiter (1), der eine einer Lampe (4) benachbarte, zu seiner Ebene senkrechte Lichteintrittsfläche (5, 6) sowie im Bereich zumindest eines Randes eine zu seiner Ebene schräge Lichtaus­ trittsfläche (7, 8) zur Bildung einer der Leuchtflächen be­ sitzt.1. mirror, in particular cosmetic mirror for a motor vehicle, with at least two he extending at the edges of a mirror surface, lamp-operated light-emitting surfaces, characterized by an on a rear surface in the installed state to form the mirror surface ( 2 ) mirrored light guide ( 1 ), the one a lamp ( 4 ) adjacent to its plane perpendicular light entry surface ( 5 , 6 ) and in the area of at least one edge an oblique light exit surface ( 7 , 8 ) to its plane to form one of the illuminated surfaces be sits. 2. Spiegel nach Anspruch 1, dadurch gekennzeichnet, daß eine weitere Leuchtfläche durch eine milchige Abdeckung der Lampe (4) gebildet ist.2. Mirror according to claim 1, characterized in that a further luminous surface is formed by a milky cover of the lamp ( 4 ). 3. Spiegel nach Anspruch 1, dadurch gekennzeichnet, daß die Lam­ pe (4) in einer im eingebauten Zustand des Spiegels rücksei­ tigen nutartigen Ausnehmung (3) im Lichtleiter (1) liegt, die zwei sich gegenüberliegende Lichteintrittsflächen (5, 6) sen­ krecht zur Ebene des Lichtleiters (1) bildet, der zumindest zwei sich bezüglich der Lampe (4) gegenüberliegende, zu sei­ ner Ebene schräge Lichtaustrittsflächen (7, 8) besitzt.3. Mirror according to claim 1, characterized in that the Lam pe ( 4 ) in a built-in state of the mirror on the rear side groove-like recess ( 3 ) in the light guide ( 1 ), the two opposite light entry surfaces ( 5 , 6 ) sen perpendicular to the level of the light guide ( 1 ), which has at least two opposite with respect to the lamp ( 4 ), to be ner inclined light exit surfaces ( 7 , 8 ). 4. Spiegel nach einem der Ansprüche 1 bis 3, dadurch gekenn­ zeichnet, daß der Lichtleiter (1) im Bereich aller Ränder Lichtaustrittsflächen besitzt.4. Mirror according to one of claims 1 to 3, characterized in that the light guide ( 1 ) has light exit surfaces in the region of all edges.
DE4228877A 1991-09-12 1992-08-29 Vanity mirror with tubular lamp for motor vehicle - has multifaceted reflector at each end of light guide for broadening region illuminated by single lamp Ceased DE4228877A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4228877A DE4228877A1 (en) 1991-09-12 1992-08-29 Vanity mirror with tubular lamp for motor vehicle - has multifaceted reflector at each end of light guide for broadening region illuminated by single lamp

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4130258 1991-09-12
DE4228877A DE4228877A1 (en) 1991-09-12 1992-08-29 Vanity mirror with tubular lamp for motor vehicle - has multifaceted reflector at each end of light guide for broadening region illuminated by single lamp

Publications (1)

Publication Number Publication Date
DE4228877A1 true DE4228877A1 (en) 1993-03-18

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Family Applications (1)

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DE4228877A Ceased DE4228877A1 (en) 1991-09-12 1992-08-29 Vanity mirror with tubular lamp for motor vehicle - has multifaceted reflector at each end of light guide for broadening region illuminated by single lamp

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Country Link
DE (1) DE4228877A1 (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2741017A1 (en) * 1995-11-09 1997-05-16 Socop Sa Illuminated automobile sun=visor courtesy mirror
EP0801373A1 (en) * 1996-01-16 1997-10-15 Lumitex, Inc. Light emitting panel assemblies for use in automotive applications and the like
DE29716013U1 (en) * 1997-09-06 1997-10-23 Hella Kg Hueck & Co Lighting device
EP0858932A3 (en) * 1997-02-18 1999-05-06 Reitter & Schefenacker GmbH & Co. KG Exterior rear view mirror for vehicles, in particular motor vehicles
DE10158855A1 (en) * 2001-06-28 2003-01-23 Volkswagen Ag Sunshade for motor vehicles has light source or sources integrated within sunshade body and light conductors for transporting light to light output openings or surfaces
DE102004042929A1 (en) * 2004-09-02 2006-03-09 Sam Schulte Gmbh + Comp. Cosmetic mirror, has light conductor with gap in which light source e.g. light emitting diode, is arranged and arranged around mirror in ring shaped manner, where conductor obtains light from source to convey light to light emission area
DE102007010419A1 (en) * 2007-03-01 2008-09-18 Erwin Müller GmbH illuminated vanity mirrors
DE102011016397A1 (en) 2011-04-08 2012-10-11 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) Inner mirror device e.g. vanity mirror, for use in sun visor of motor car, has volume scatterers integrated in light conductor to decouple light from light conductor in decoupling region that is overlapped on reflector surface
DE102012003586A1 (en) * 2012-02-27 2013-08-29 Sam Schulte Gmbh + Comp. Rectangular cosmetic mirror has two light guide plates, where inner edges of two light guide plates are arranged parallel to outer edges in central region of mirror, and light emitting diodes are inserted in inner edge of light guide plate
WO2013156601A1 (en) * 2012-04-20 2013-10-24 Osram Opto Semiconductors Gmbh Mirror device
EP2660103A2 (en) 2012-05-03 2013-11-06 Audi Ag Light element with deliberate influencing of the edge appearance
EP3411251A4 (en) * 2016-02-01 2019-08-07 Irvin Automotive Products, LLC SUN LIGHT MIRROR LIGHTED AUTOMOTIVE

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2741017A1 (en) * 1995-11-09 1997-05-16 Socop Sa Illuminated automobile sun=visor courtesy mirror
EP0801373A1 (en) * 1996-01-16 1997-10-15 Lumitex, Inc. Light emitting panel assemblies for use in automotive applications and the like
EP0858932A3 (en) * 1997-02-18 1999-05-06 Reitter & Schefenacker GmbH & Co. KG Exterior rear view mirror for vehicles, in particular motor vehicles
DE29716013U1 (en) * 1997-09-06 1997-10-23 Hella Kg Hueck & Co Lighting device
DE10158855A1 (en) * 2001-06-28 2003-01-23 Volkswagen Ag Sunshade for motor vehicles has light source or sources integrated within sunshade body and light conductors for transporting light to light output openings or surfaces
DE102004042929A1 (en) * 2004-09-02 2006-03-09 Sam Schulte Gmbh + Comp. Cosmetic mirror, has light conductor with gap in which light source e.g. light emitting diode, is arranged and arranged around mirror in ring shaped manner, where conductor obtains light from source to convey light to light emission area
DE102007010419A1 (en) * 2007-03-01 2008-09-18 Erwin Müller GmbH illuminated vanity mirrors
DE102007010419B4 (en) * 2007-03-01 2011-04-28 Erwin Müller GmbH illuminated vanity mirrors
DE102011016397A1 (en) 2011-04-08 2012-10-11 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) Inner mirror device e.g. vanity mirror, for use in sun visor of motor car, has volume scatterers integrated in light conductor to decouple light from light conductor in decoupling region that is overlapped on reflector surface
DE102012003586A1 (en) * 2012-02-27 2013-08-29 Sam Schulte Gmbh + Comp. Rectangular cosmetic mirror has two light guide plates, where inner edges of two light guide plates are arranged parallel to outer edges in central region of mirror, and light emitting diodes are inserted in inner edge of light guide plate
WO2013156601A1 (en) * 2012-04-20 2013-10-24 Osram Opto Semiconductors Gmbh Mirror device
EP2660103A2 (en) 2012-05-03 2013-11-06 Audi Ag Light element with deliberate influencing of the edge appearance
DE102012008976A1 (en) * 2012-05-03 2013-11-07 Audi Ag Light element with targeted influence on the edge optics
DE102012008976B4 (en) * 2012-05-03 2017-06-14 Audi Ag Light element with targeted influence on the edge optics
EP3411251A4 (en) * 2016-02-01 2019-08-07 Irvin Automotive Products, LLC SUN LIGHT MIRROR LIGHTED AUTOMOTIVE
US11077789B2 (en) 2016-02-01 2021-08-03 Irvin Automotive Products, LLC Lighted auto visor mirror

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