WO1996008696A1 - Display instrument with an illuminated pointer - Google Patents

Display instrument with an illuminated pointer Download PDF

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Publication number
WO1996008696A1
WO1996008696A1 PCT/DE1995/001095 DE9501095W WO9608696A1 WO 1996008696 A1 WO1996008696 A1 WO 1996008696A1 DE 9501095 W DE9501095 W DE 9501095W WO 9608696 A1 WO9608696 A1 WO 9608696A1
Authority
WO
WIPO (PCT)
Prior art keywords
pointer
light
housing
display instrument
instrument according
Prior art date
Application number
PCT/DE1995/001095
Other languages
German (de)
French (fr)
Inventor
Georg Ewald
Jan Holzaepfel
Klaus Lang
Derk ORÉANS
Original Assignee
Moto Meter Gmbh
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 Moto Meter Gmbh filed Critical Moto Meter Gmbh
Priority to JP8509795A priority Critical patent/JPH10505678A/en
Priority to EP95928950A priority patent/EP0782698A1/en
Publication of WO1996008696A1 publication Critical patent/WO1996008696A1/en

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/28—Structurally-combined illuminating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/21—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays
    • B60K35/215—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays characterised by the combination of multiple visual outputs, e.g. combined instruments with analogue meters and additional displays
    • G—PHYSICS
    • G12—INSTRUMENT DETAILS
    • G12B—CONSTRUCTIONAL DETAILS OF INSTRUMENTS, OR COMPARABLE DETAILS OF OTHER APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G12B11/00—Indicating elements; Illumination thereof
    • G12B11/04—Pointers; Setting-mechanisms therefor

Definitions

  • the invention relates to a display instrument with an illuminated pointer according to the preamble of the main claim.
  • a display instrument with an illuminated pointer is known, a light-conducting plate being arranged under the pointer, into which light from a lamp is coupled.
  • the light-conducting plate guides the light from the lamp to the pointer hub, where it is coupled into the pointer.
  • the pointer also acts as a light guide and deflects the light directed into it towards an observer.
  • the pointer is also mounted on a shaft which is guided to a pointer drive mechanism which rotatably drives the pointer.
  • the display instrument according to the invention with the characterizing features of the main claim has the advantage that no light guide must be provided in addition to the pointer in order to couple the light illuminating the pointer into the pointer.
  • the housing serves as a light chamber and guides the light to the light coupling point of the pointer. This creates the further advantage that the shaft between the pointer drive mechanism and the pointer can be kept very short, which improves the pointer behavior due to the reduced effects of the pointer and shaft elasticity on the pointer drive mechanism and thus the display accuracy.
  • the measures listed in the subclaims enable advantageous developments and improvements of the display instrument specified in the main claim.
  • the arrangement of the pointer drive unit together with the light source in a common housing has the advantage that no separate housing has to be provided for the pointer drive unit in order to protect it from environmental influences.
  • the arrangement of a passage of the shaft through the housing for the light source is avoided, which is equivalent to reduced expenditure.
  • the housing has reflection surfaces which reflect the light towards the light coupling surface, the amount of light entering the pointer through the light coupling point is thereby advantageously increased.
  • the coating of the housing with a reflective layer once again increases the amount of light available for illuminating the pointer.
  • the arrangement of a scatter foil below the LCD display improves the uniformity of the illumination of the LCD display. Reflection surfaces in the housing, which reflect the light towards the recess, increase the amount of light available below the LCD display for illuminating it.
  • the arrangement of an opaque cap on the pointer on its side facing the viewer plane has the advantage that the light illuminating the pointer emerges only from the pointer flag and not from its hub, which improves the legibility of the display instrument.
  • FIG. 1 shows a display instrument with a pointer
  • Figure 2 is a display instrument with pointer and LCD display.
  • FIG. 1 shows a display instrument in which a pointer drive mechanism 15 is arranged on a base plate 17.
  • a shaft 14 protrudes from the pointer drive mechanism 15, on which a pointer 12 is attached.
  • the pointer comprises a hub which is on the shaft 14 and a pointer flag which is formed in one piece with the hub.
  • a cap 13 is placed on the pointer 12 above the area of the hub.
  • a light source 18 is arranged on the base plate 17 on the side of the pointer drive mechanism 15.
  • the light source 18 and the pointer drive mechanism 15 are jointly enclosed by a housing 16, which is also attached to the base plate 17.
  • the housing 16 has an opening on its top through which the shaft 14 protrudes together with the hub of the pointer 12.
  • a dial 11 is arranged between the pointer 12 and the upper side of the housing 16 and has a first recess 24 in the region of the hub of the pointer 12, through which the hub of the pointer 12 projects.
  • the lower region of the hub of the pointer 12, which lies within the housing 16, serves as a light coupling point 26.
  • the housing 16 has on its inside in the region above the light source 18 a reflection surface 27 which is inclined so that the light reflected on it to the light coupling point 26 of the pointer 12 is steered.
  • the housing 16 has a reflective layer 28 on the reflection surface 27.
  • the light 22 coupled into the pointer by the light coupling point 26 is guided from the hub to the pointer flag and is deflected in the pointer flag towards a viewer plane.
  • the space within the housing 16 around the pointer hub and thus also the light coupling point 26 are illuminated by the light source 18 and the light 22 emitted by it is guided to the light coupling point 26 by means of the walls of the housing 16 and above all the reflection surface 27.
  • the coupled light 22 is forwarded within the pointer 12 to the viewer level.
  • the cap 13 serves to avoid the emission of light 22 in the area of the pointer disc.
  • the reflective layer 28 serves to amplify the reflection towards the light coupling point 26.
  • the housing is designed to be opaque and at the same time prevents the unwanted escape of the light 22 of the light source 18 and the entry of dirt into the housing 16. Since the pointer drive mechanism 15 is also arranged in the housing 16, this is also protected from environmental influences.
  • FIG. 2 shows a further exemplary embodiment of a display instrument with an illuminated, movable pointer.
  • the numbering from FIG. 1 was retained.
  • the exemplary embodiment shown here differs from the arrangement from FIG. 1 in that the housing 16 additionally has a further recess 20, above which an LCD display 19 is arranged.
  • the dial 11 covers the LCD display 19 and, above the display area of the LCD display 19, has an aperture 21 which allows the light 23 of the LCD display 19 to pass through.
  • the LCD display 19 also has a scattering film 25 on its underside.
  • the housing 16 is shaped in such a way that it has a further reflection surface 29, on which part of the light 22, which is emitted by the light source 18, is reflected toward the further recess 20.
  • the reflection surface 27 is not provided with a reflective layer 28.
  • the light source 18 thus illuminates the light coupling point 26 on the one hand via the reflection surface 27 and the LCD display 19 on the other hand via the reflection surface 29.
  • the light 22 of the light source 18 impinging on the scattering film 25 penetrates the LCD display 19 in part, as a result of which the Readability of the LCD display 19 is improved, especially in the dark.
  • the light 22 coupled into the pointer hub via the light coupling point 26 exits the pointer 12 and likewise serves to improve the visibility of the pointer 12 when values are displayed on the dial 11.
  • a reflective layer 28 can also be provided here.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Measuring Devices (AREA)

Abstract

Proposed is a display instrument with an illuminated, moving pointer with a light-entry point into which light (22) from a light source (18) mounted in a housing (16) is passed. The light-entry point (26) is located inside the light-source housing (16).

Description

Anzeigeinstnimβnt mit einem beleuchteten ZeigerIndicator with an illuminated pointer
Stand der TechnikState of the art
Die Erfindung geht aus von einem Anzeigeinstrument mit einem beleuchteten Zeiger nach der Gattung des Hauptanspruchs. Aus der DE-OS 29 13 139 ist ein Anzeigeinstrument mit einem beleuchteten Zeiger bekannt, wobei eine lichtleitende Platte unter dem Zeiger angeordnet ist, in die Licht aus einer Lampe eingekoppelt wird. Die lichtleitende Platte leitet das Licht von der Lampe zur Zeigernabe, wo es in den Zeiger eingekoppelt wird. Der Zeiger fungiert hier ebenfalls als Lichtleiter und lenkt das in ihn geleitete Licht zu einem Betrachter hin ab. Der Zeiger ist außerdem auf einer Welle gelagert, die zu einem den Zeiger drehbar antreibenden Zeigerantriebswerk geführt ist.The invention relates to a display instrument with an illuminated pointer according to the preamble of the main claim. From DE-OS 29 13 139 a display instrument with an illuminated pointer is known, a light-conducting plate being arranged under the pointer, into which light from a lamp is coupled. The light-conducting plate guides the light from the lamp to the pointer hub, where it is coupled into the pointer. The pointer also acts as a light guide and deflects the light directed into it towards an observer. The pointer is also mounted on a shaft which is guided to a pointer drive mechanism which rotatably drives the pointer.
Vorteile der ErfindungAdvantages of the invention
Das erfindungsgemäße Anzeigeinstrument mit den kennzeichnenden Merkmalen des Hauptanspruchs hat den Vorteil, daß kein Lichtleiter zusätzlich zum Zeiger vorgesehen werden muß, um das den Zeiger beleuchtende Licht in den Zeiger einzukoppeln. Das Gehäuse dient hierbei als Lichtkammer und führt das Licht zur Lichteinkopplungsstelle des Zeigers hin. Dadurch entsteht der weitere Vorteil, daß die Welle zwischen dem Zeigerantriebswerk und dem Zeiger sehr kurz gehalten werden kann, wodurch das Zeigerverhalten aufgrund der verringerten Auswirkungen der Zeiger- und Wellenelastizität auf das Zeigerantriebswerk und somit die Anzeigegenauigkeit verbessert wird. Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen des im Hauptanspruch angegebenen Anzeigeinstruments möglich.The display instrument according to the invention with the characterizing features of the main claim has the advantage that no light guide must be provided in addition to the pointer in order to couple the light illuminating the pointer into the pointer. The housing serves as a light chamber and guides the light to the light coupling point of the pointer. This creates the further advantage that the shaft between the pointer drive mechanism and the pointer can be kept very short, which improves the pointer behavior due to the reduced effects of the pointer and shaft elasticity on the pointer drive mechanism and thus the display accuracy. The measures listed in the subclaims enable advantageous developments and improvements of the display instrument specified in the main claim.
Die Anordnung des Zeigerantriebswerks zusammen mit der Lichtquelle in einem gemeinsamen Gehäuse führt zu dem Vorteil, daß kein separates Gehäuse für das Zeigerantriebswerk vorgesehen werden muß, um dieses vor Umwelteinflüssen zu schützen. Außerdem wird so die Anordnung einer Durchführung der Welle durch das Gehäuse für die Lichtquelle vermieden, was einem verringerten Aufwand gleichkommt.The arrangement of the pointer drive unit together with the light source in a common housing has the advantage that no separate housing has to be provided for the pointer drive unit in order to protect it from environmental influences. In addition, the arrangement of a passage of the shaft through the housing for the light source is avoided, which is equivalent to reduced expenditure.
Weist das Gehäuse Reflexionsflächen auf, die das Licht zur Lichteinkopplungsfl che hin reflektieren, so wird dadurch in vorteilhafter Weise die Menge des durch die Lichteinkopplungsstelle in den Zeiger eintretenden Lichts erhöht.If the housing has reflection surfaces which reflect the light towards the light coupling surface, the amount of light entering the pointer through the light coupling point is thereby advantageously increased.
Die Beschichtung des Gehäuses mit einer reflektierenden Schicht erhöht noch einmal die zur Beleuchtung des Zeigers verfügbare Lichtmenge.The coating of the housing with a reflective layer once again increases the amount of light available for illuminating the pointer.
Es besteht der weitere Vorteil, daß weitere Lichtquellen eingespart werden, wenn die Lichtquelle gleichzeitig zusätzlich der Beleuchtung einer über einer Aussparung angeordneten LCD-Anzeige dient.There is the further advantage that additional light sources can be saved if the light source is additionally used to illuminate an LCD display arranged above a recess.
Die Anordnung einer Streufolie unterhalb der LCD-Anzeige verbessert die Gleichmäßigkeit der Ausleuchtung der LCD- Anzeige. Reflexionsflächen im Gehäuse, welche das Licht zur Aussparung hin reflektieren, erhöhen die unterhalb der LCD-Anzeige zu deren Beleuchtung vorhandene Lichtmenge.The arrangement of a scatter foil below the LCD display improves the uniformity of the illumination of the LCD display. Reflection surfaces in the housing, which reflect the light towards the recess, increase the amount of light available below the LCD display for illuminating it.
Die Anordnung einer lichtundurchlässigen Kappe auf dem Zeiger auf dessen der Betrachterebene zugewandten Seite bietet den Vorteil, daß das den Zeiger beleuchtende Licht nur aus der Zeigerfahne und nicht aus dessen Nabe austritt, wodurch die Ablesbarkeit des Anzeigeinstruments verbessert wird.The arrangement of an opaque cap on the pointer on its side facing the viewer plane has the advantage that the light illuminating the pointer emerges only from the pointer flag and not from its hub, which improves the legibility of the display instrument.
Zeichnungdrawing
Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert.Embodiments of the invention are shown in the drawing and explained in more detail in the following description.
Es zeigen:Show it:
Figur 1 ein Anzeigeinstrument mit Zeiger,FIG. 1 shows a display instrument with a pointer,
Figur 2 ein Anzeigeinstrument mit Zeiger und LCD-Anzeige.Figure 2 is a display instrument with pointer and LCD display.
In der Figur 1 ist ein Anzeigeinstrument dargestellt, bei dem auf einer Grundplatte 17 ein Zeigerantriebswerk 15 angeordnet ist. Aus dem Zeigerantriebswerk 15 ragt eine Welle 14, auf der ein Zeiger 12 aufgesteckt ist. Der Zeiger umfaßt dabei eine Nabe, die auf der Welle 14 steckt und eine Zeigerfahne, welche einstückig mit der Nabe ausgebildet ist. Über dem Bereich der Nabe ist eine Kappe 13 auf den Zeiger 12 aufgesteckt. Seitlich des Zeigerantriebswerks 15 ist auf der Grundplatte 17 eine Lichtquelle 18 angeordne . Die Lichtquelle 18 und das Zeigerantriebswerk 15 sind gemeinsam von einem Gehäuse 16 umschlossen, welches gleichfalls auf der Grundplatte 17 befestigt ist. Das Gehäuse 16 weist an seiner Oberseite eine Öffnung auf, durch die die Welle 14 zusammen mit der Nabe des Zeigers 12 ragt. Zwischen dem Zeiger 12 und der Oberseite des Gehäuses 16 ist ein Zifferblatt 11 angeordnet, das im Bereich der Nabe des Zeigers 12 eine erste Aussparung 24 aufweist, durch die die Nabe des Zeigers 12 ragt. Der untere, innerhalb des Gehäuses 16 liegende Bereich der Nabe des Zeigers 12 dient als Lichteinkopplungsstelle 26. Das Gehäuse 16 weist an seiner Innenseite im Bereich über der Lichtquelle 18 eine Reflexionsfläche 27 auf, die so geneigt ist, daß das an ihr reflektierte Licht zur Lichteinkopplungsstelle 26 des Zeigers 12 gelenkt wird. Zusätzlich weist das Gehäuse 16 auf der Reflexionsfläche 27 eine reflektierende Schicht 28 auf. Das in den Zeiger durch die Lichteinkopplungsstelle 26 eingekoppelte Licht 22 wird von der Nabe zur Zeigerfahne geleitet und in der Zeigerfahne zu einer Betrachterebene hin abgelenkt.FIG. 1 shows a display instrument in which a pointer drive mechanism 15 is arranged on a base plate 17. A shaft 14 protrudes from the pointer drive mechanism 15, on which a pointer 12 is attached. The pointer comprises a hub which is on the shaft 14 and a pointer flag which is formed in one piece with the hub. A cap 13 is placed on the pointer 12 above the area of the hub. A light source 18 is arranged on the base plate 17 on the side of the pointer drive mechanism 15. The light source 18 and the pointer drive mechanism 15 are jointly enclosed by a housing 16, which is also attached to the base plate 17. The housing 16 has an opening on its top through which the shaft 14 protrudes together with the hub of the pointer 12. A dial 11 is arranged between the pointer 12 and the upper side of the housing 16 and has a first recess 24 in the region of the hub of the pointer 12, through which the hub of the pointer 12 projects. The lower region of the hub of the pointer 12, which lies within the housing 16, serves as a light coupling point 26. The housing 16 has on its inside in the region above the light source 18 a reflection surface 27 which is inclined so that the light reflected on it to the light coupling point 26 of the pointer 12 is steered. In addition, the housing 16 has a reflective layer 28 on the reflection surface 27. The light 22 coupled into the pointer by the light coupling point 26 is guided from the hub to the pointer flag and is deflected in the pointer flag towards a viewer plane.
Der innerhalb des Gehäuses 16 liegende Raum um die Zeigernabe und damit auch die Lichteinkopplungsstelle 26 werden von der Lichtquelle 18 beleuchtet und das von ihr abgestrahlte Licht 22 mittels der Wandungen des Gehäuses 16 und vor allem der Reflexionsfläche 27 zur Lichteinkopplungsstelle 26 hin geleitet. Innerhalb des Zeigers 12 erfolgt eine Weiterleitung des eingekoppelten Lichts 22 zur Betrachterebene. Die Kappe 13 dient dabei der Vermeidung der Abstrahlung von Licht 22 im Bereich der Zeigerneibe. Die reflektierende Schicht 28 dient einer Verstärkung der Reflektion zur Lichteinkopplungsstelle 26 hin. das Gehäuse ist dabei lichtundurchlässig ausgebildet und verhindert gleichzeitig das ungewollte Austreten des Lichts 22 der Lichtquelle 18 und das Eintreten von Schmutz in das Gehäuse 16. Da das Zeigerantriebswerk 15 gleichfalls im Gehäuse 16 angeordnet ist ist auch dieses vor Umwelteinflüssen geschützt. In der Figur 2 ist ein weiteres Ausführungsbeispiel für ein Anzeigeinstrument mit einem beleuchteten, beweglichen Zeiger dargestellt. Dabei wurde die Numerierung aus der Figur 1 beibehalten. Das hier dargestellte Ausführungsbeispiel unterscheidet sich von der Anordnung aus Figur 1 dadurch, daß das Gehäuse 16 zusätzlich eine weitere Aussparung 20 aufweist, über der eine LCD-Anzeige 19 angeordnet ist. Das Zifferblatt 11 bedeckt dabei die LCD-Anzeige 19 und weist oberhalb des Anzeigebereichs der LCD-Anzeige 19 eine das Licht 23 der LCD-Anzeige 19 passieren lassenden Durchbruch 21 auf. Auf ihrer Unterseite weist die LCD-Anzeige 19 außerdem eine Streufolie 25 auf. Das Gehäuse 16 ist dabei so geformt, daß es eine weitere Reflexionsfläche 29 aufweist, an der ein Teil des Lichts 22, welches von der Lichtquelle 18 ausgesandt wird, zur weiteren Aussparung 20 hin reflektiert wird. Außerdem ist die Reflexionsfläche 27 nicht mit einer reflektierenden Schicht 28 versehen.The space within the housing 16 around the pointer hub and thus also the light coupling point 26 are illuminated by the light source 18 and the light 22 emitted by it is guided to the light coupling point 26 by means of the walls of the housing 16 and above all the reflection surface 27. The coupled light 22 is forwarded within the pointer 12 to the viewer level. The cap 13 serves to avoid the emission of light 22 in the area of the pointer disc. The reflective layer 28 serves to amplify the reflection towards the light coupling point 26. the housing is designed to be opaque and at the same time prevents the unwanted escape of the light 22 of the light source 18 and the entry of dirt into the housing 16. Since the pointer drive mechanism 15 is also arranged in the housing 16, this is also protected from environmental influences. FIG. 2 shows a further exemplary embodiment of a display instrument with an illuminated, movable pointer. The numbering from FIG. 1 was retained. The exemplary embodiment shown here differs from the arrangement from FIG. 1 in that the housing 16 additionally has a further recess 20, above which an LCD display 19 is arranged. The dial 11 covers the LCD display 19 and, above the display area of the LCD display 19, has an aperture 21 which allows the light 23 of the LCD display 19 to pass through. The LCD display 19 also has a scattering film 25 on its underside. The housing 16 is shaped in such a way that it has a further reflection surface 29, on which part of the light 22, which is emitted by the light source 18, is reflected toward the further recess 20. In addition, the reflection surface 27 is not provided with a reflective layer 28.
Die Lichtquelle 18 beleuchtet somit zum einen über die Reflexionsfläche 27 die Lichteinkopplungsstelle 26 und zum anderen über die Reflexionsfläche 29 die LCD-Anzeige 19. Das auf der Streufolie 25 auftreffende Licht 22 der Lichtquelle 18 durchdringt dabei die LCD-Anzeige 19 zum Teil, wodurch die Ablesbarkeit der LCD-Anzeige 19 insbesondere bei Dunkelheit verbessert wird. Das von der Lichtquelle 18 in die Zeigernabe über die Lichteinkopplungsstelle 26 eingekoppelte Licht 22 tritt aus dem Zeiger 12 aus und dient gleichfalls der besseren Sichtbarkeit des Zeigers 12 bei der Anzeige von Werten auf dem Zifferblatt 11. Auch hier kann eine reflektierende Schicht 28 vorgesehen werden. The light source 18 thus illuminates the light coupling point 26 on the one hand via the reflection surface 27 and the LCD display 19 on the other hand via the reflection surface 29. The light 22 of the light source 18 impinging on the scattering film 25 penetrates the LCD display 19 in part, as a result of which the Readability of the LCD display 19 is improved, especially in the dark. The light 22 coupled into the pointer hub via the light coupling point 26 exits the pointer 12 and likewise serves to improve the visibility of the pointer 12 when values are displayed on the dial 11. A reflective layer 28 can also be provided here.

Claims

Ansprüche Expectations
1. Anzeigeinstrument mit einem beleuchteten, beweglichen Zeiger aus einem lichtleitenden, transparenten Material, der eine Lichteinkopplungsstelle aufweist, an der von einer Lichtquelle ausgestrahltes Licht in den Zeiger einkoppelbar ist, welches im für dieses Licht als Lichtleiter fungierenden Zeiger geführt und zu einer Betrachterebene hingelenkt wird, dadurch gekennzeichnet, daß der Zeiger (12) über einem Gehäuse (16) beweglich angeordnet ist und daß der Zeiger (12) teilweise in das Gehäuse ragt (16) , so daß die Lichteinkopplungsstelle (26) des Zeigers (12) im Gehäuse (16) liegt, und daß die Lichtquelle (18) in dem Gehäuse (16) angeordnet ist und dessen Innenraum sowie die Lichteinkopplungsstelle (26) beleuchtet.1. Display instrument with an illuminated, movable pointer made of a light-conducting, transparent material, which has a light coupling point at which light emitted by a light source can be coupled into the pointer, which is guided in the pointer acting as light guide for this light and directed towards a viewer level characterized in that the pointer (12) is movably arranged over a housing (16) and that the pointer (12) projects partially into the housing (16) so that the light coupling point (26) of the pointer (12) in the housing ( 16), and that the light source (18) is arranged in the housing (16) and illuminates its interior and the light coupling point (26).
2. Anzeigeinstrument nach Anspruch 1, dadurch gekennzeichnet, daß der Zeiger (12) über eine Welle (14) drehbar gelagert ist, die von einem Zeigerantriebswerk (15) antreibbar ist und daß das Zeigerantriebswerk (15) gleichfalls im Gehäuse (16) angeordnet ist.2. Display instrument according to claim 1, characterized in that the pointer (12) is rotatably mounted on a shaft (14) which can be driven by a pointer drive mechanism (15) and that the pointer drive mechanism (15) is also arranged in the housing (16) .
3. Anzeigeinstrument nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Gehäuse (16) wenigstens eine Reflexionsfläche (27) aufweist, die das Licht zur Lichteinkopplungsstelle (26) hin reflektiert. 3. Display instrument according to claim 1 or 2, characterized in that the housing (16) has at least one reflection surface (27) which reflects the light towards the light coupling point (26).
4. Anzeigeinstrument nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Gehäuse (16) innen mit einer reflektierenden Schicht (28) versehen ist.4. Display instrument according to one of claims 1 to 3, characterized in that the housing (16) is provided on the inside with a reflective layer (28).
5. Anzeigeinstrument nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß auf der der Betrachterebene zugewandten Seite des Gehäuses (16) eine LCD-Anzeige (19) angeordnet ist, die durch eine Aussparung (20) mittels der Lichtquelle (18) gleichfalls beleuchtbar ist.5. Display instrument according to one of claims 1 to 4, characterized in that an LCD display (19) is arranged on the side of the housing (16) facing the viewer plane, which is also through a recess (20) by means of the light source (18) can be illuminated.
6. Anzeigeinstrument nach Anspruch 5, dadurch gekennzeichnet, daß unter der LCD-Anzeige (19) eine Streufolie (25) angeordnet ist.6. Display instrument according to claim 5, characterized in that a scatter film (25) is arranged under the LCD display (19).
7. Anzeigeinstrument nach Anspruch 5 oder 6, dadurch gekennzeichnet, daß das Gehäuse (16) wenigstens eine weitere Reflexionsfläche (29) aufweist, die das Licht zur Aussparung (20) hin reflektiert.7. Display instrument according to claim 5 or 6, characterized in that the housing (16) has at least one further reflection surface (29) which reflects the light towards the recess (20).
8. Anzeigeinstrument nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß der Zeiger (16) auf der der Betrachterebene zugewandten Seite eine lichtundurchlässige Kappe (13) aufweist. 8. Display instrument according to one of claims 1 to 7, characterized in that the pointer (16) on the side facing the viewer level has an opaque cap (13).
PCT/DE1995/001095 1994-09-17 1995-08-19 Display instrument with an illuminated pointer WO1996008696A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP8509795A JPH10505678A (en) 1994-09-17 1995-08-19 Indicator with illuminated pointer
EP95928950A EP0782698A1 (en) 1994-09-17 1995-08-19 Display instrument with an illuminated pointer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4433150A DE4433150A1 (en) 1994-09-17 1994-09-17 Display instrument with an illuminated pointer
DEP4433150.9 1994-09-17

Publications (1)

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WO1996008696A1 true WO1996008696A1 (en) 1996-03-21

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EP (1) EP0782698A1 (en)
JP (1) JPH10505678A (en)
DE (1) DE4433150A1 (en)
WO (1) WO1996008696A1 (en)

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US6959995B2 (en) 2000-07-31 2005-11-01 Nippon Seiki Co., Ltd. Illuminating apparatus

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EP0782698A1 (en) 1997-07-09
JPH10505678A (en) 1998-06-02
DE4433150A1 (en) 1996-03-21

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