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EP2650867B1 - Lamp, in particular warning lamp - Google Patents

Lamp, in particular warning lamp Download PDF

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Publication number
EP2650867B1
EP2650867B1 EP13163336.4A EP13163336A EP2650867B1 EP 2650867 B1 EP2650867 B1 EP 2650867B1 EP 13163336 A EP13163336 A EP 13163336A EP 2650867 B1 EP2650867 B1 EP 2650867B1
Authority
EP
European Patent Office
Prior art keywords
light emitting
reflector element
leds
luminaire according
accumulator
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.)
Active
Application number
EP13163336.4A
Other languages
German (de)
French (fr)
Other versions
EP2650867A3 (en
EP2650867A2 (en
Inventor
Joachim Frick
Helmut Feurle
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.)
Zumtobel Lighting GmbH Austria
Original Assignee
Zumtobel Lighting GmbH Austria
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 Zumtobel Lighting GmbH Austria filed Critical Zumtobel Lighting GmbH Austria
Publication of EP2650867A2 publication Critical patent/EP2650867A2/en
Publication of EP2650867A3 publication Critical patent/EP2650867A3/en
Application granted granted Critical
Publication of EP2650867B1 publication Critical patent/EP2650867B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/18—Edge-illuminated signs
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
    • G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
    • G08B7/062—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources indicating emergency exits
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0418—Constructional details
    • G09F13/0445—Frames
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/14—Arrangements of reflectors therein
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0418—Constructional details
    • G09F2013/05—Constructional details indicating exit way or orientation
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/14—Arrangements of reflectors therein
    • G09F2013/145—Arrangements of reflectors therein curved reflectors
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
    • G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
    • G09F2013/222—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent with LEDs

Definitions

  • the invention relates to a luminaire, in particular an indicator lamp with a front light emitting disc, a rear parallel thereto Lichtaufgabein and a plurality of LEDs (LED: light emitting diode) for generating a light which is irradiated into the space between the two light emitting discs.
  • LED light emitting diode
  • Such a lamp in the form of an indicator light is from the DE 20 2010 002 049 U1 known.
  • light is radiated from above in the intermediate space formed between the two light emission discs by means of the LEDs.
  • the light intensity decreases with increasing distance from the LEDs, so that as a result the light output appears on the light emitting disks with a correspondingly decreasing intensity.
  • From the DE 31 29 038 A1 is a sign lamp with two lenses known between which a fluorescent lamp is located in the upper area. From the lower edges of the lenses a reflector extends obliquely backwards; in the middle of the lamp the reflectors meet.
  • An indicator lamp with a disc-shaped light distribution body is known. Light from a lamp is radiated via a narrow light entry surface of the light distribution body; on the opposite side a roof-shaped reflector is arranged, which serves to lighten the lamp-distant region of the light distribution body particularly strong.
  • the invention has for its object to provide a corresponding improved luminaire;
  • a luminaire in particular a direction indicator lamp, having a front translucent light-emitting disc and a rear translucent light-emitting disc arranged parallel to the front light-emitting disc such that a space is formed between the front light-emitting disc and the rear light-emitting disc.
  • the lamp has a plurality of LEDs for generating a light, wherein the LEDs are arranged such that they radiate the light into the intermediate space.
  • the luminaire has a reflector element, which is arranged opposite the LEDs with respect to the intermediate space and comprises a convexly curved region. The reflector element makes it possible to achieve equalization of the light intensity across the two light output disks in a comparatively simple manner. In particular, this can effectively counteract a decrease in the light intensity with increasing distance from the LEDs.
  • the reflector element has a reflective surface which, with respect to the intermediate space, comprises a convexly curved region.
  • space can advantageously be achieved on the side of the reflector element opposite the LEDs for a further luminaire component, for example for an accumulator for operating the LEDs.
  • the convex shape is technically advantageous with respect to a distribution of the light on the two light emitting discs.
  • the curved portion of the reflective surface occupies more than half of the distance between the front light emitting disc and the rear light emitting disc.
  • the light of the LEDs is particularly effectively directed to the light output discs.
  • this creates a comparatively large space for a further lighting component.
  • the LEDs are disposed at a lower end portion of the gap, the front light emitting disk having a light emitting surface extending up to a first level and the reflector element extending downwardly to a second level lower than the first level.
  • the lamp can be designed so that the reflector element extends into the intermediate space.
  • the luminaire as a whole can be made particularly small-scale, or the light-emitting surface can be particularly large when viewed in a relatively large way.
  • the lamp also has an accumulator for powering the LEDs, which is arranged supported on the reflector element, in particular with Reference to the reflector element on a side opposite to the LEDs.
  • an accumulator for powering the LEDs which is arranged supported on the reflector element, in particular with Reference to the reflector element on a side opposite to the LEDs.
  • Space saving while the lamp is designed such that the accumulator is disposed at least for the most part between the second level and the first level. Due to the battery, the light is particularly well suited as an emergency light, because it can be operated without an external power source.
  • the reflector element is elongate and in this case has a longitudinal stop element, which is arranged between a first position and a second position movable back and forth on the rest of the reflector element that it forms a longitudinal stop for the accumulator in the first position, in the second position, however, not.
  • the reflector element can be designed such that it is alternatively suitable either for holding the accumulator or for holding a corresponding, but longer accumulator. Handling friendly while the longitudinal stop element is arranged by means of a film hinge to the rest of the reflector element.
  • the reflector element is made of plastic.
  • the lamp also has a device carrier, wherein the reflector element is connected via a latching connection with the equipment carrier. This allows a simple and easy to install design, especially when the front light emitting disc extends directly to the equipment rack.
  • Fig. 1 shows a sketch of a perspective view of a lamp according to the invention according to the embodiment
  • Fig. 2 a corresponding cross-sectional sketch.
  • the luminaire is an indicator light, in particular for displaying backlit pictograms. For example, it may be a rescue light or emergency light.
  • the luminaire may be, for example, a pendant luminaire.
  • the luminaire has a front translucent light emitting disc 2, and a rear translucent light emitting disc 3.
  • the rear light emitting disc 3 is arranged parallel to the front light emitting disc 2, that between the front light emitting disc 2 and the rear light emitting disc 3, a gap 4 is formed.
  • the two light emitting discs 2, 3 may in particular each have a pictogram.
  • the luminaire is designed to operate in such a way that the two light emitting disks 2, 3 are oriented vertically. In the present description, this orientation is assumed. However, in principle, the light can be provided for operation in any other orientation. The present directions must be reinterpreted in such a case.
  • the front light emitting disc 2 may have a surface 21, which is preferably rectangular and which forms an outer surface of the lamp. This surface 21 may represent in particular a front light emitting surface of the lamp. The same applies to a further surface 31 and rear light emitting surface of the rear light emitting disc 3.
  • the front light emitting surface and the rear light emitting surface can be made the same size.
  • the lower edge regions of the two light emitting disks 2, 3 are connected to one another via an elongate frame element 7. Their upper peripheral regions are connected to one another via an elongate device carrier 8.
  • the intermediate space 4 extends downwards to the frame element 7.
  • the lamp has a plurality of LEDs 5 for generating a light.
  • the LEDs 5 are arranged such that they radiate the light into the gap 4.
  • the light is designed so that the light in the further on the front light emitting disc 2 and the rear light emitting disc 3 in a Outside space A of the lamp is discharged.
  • the LEDs 5 may be the only light source of the luminaire.
  • the LEDs 5 are preferably arranged along a straight line which runs parallel to the front light emitting disk 2 and horizontally oriented and with reference to the illustration of Fig. 1 perpendicular to the drawing plane.
  • the LEDs 5 are arranged on an elongate board 9, which is mounted on the frame member 7.
  • the circuit board 9 and the frame element 7 are oriented parallel to each other. In the example shown, therefore, the light of the LEDs 5 is radiated from below into the gap 4.
  • the lamp has a reflector element 6, which is arranged opposite the LEDs 5 with respect to the gap 4.
  • the reflector element 6 may be elongated and with its longitudinal or main axis parallel to the straight line on which the LEDs 5 are arranged or arranged to be aligned with the elongated circuit board 9.
  • This design makes it possible to achieve that the light emitted by the LEDs 5 is reflected by the reflector element 6 on the opposite side of the intermediate space, in this case "above”, so that an increased incidence of light on the upper subregions of the two light output disks 2, 3 takes place. As a result, it is possible effectively to counteract a brightness which decreases toward the top on the two light emitting disks 2, 3.
  • the reflector element 6 preferably has a reflective surface 61 which, with respect to the intermediate space 4, comprises a convexly curved region, ie is bulged downward in the example shown.
  • the convexly curved region of the surface 61 extends into the intermediate space 4.
  • the reflective surface 61 is designed as a whole elongated and thereby semi-cylindrical in particular semi-circular cylindrical; the corresponding cylinder axis extends parallel to the longitudinal axis of the reflector element 6.
  • the front light emitting surface 21 extends upward to a first level N1 and the curved area of the surface 61 downward to a second level N2 , which is lower and lower than the first level N1 .
  • the device carrier 8 can be designed with a smaller vertical extension.
  • an accumulator 10 is arranged in said space or is, which serves to power the LEDs 5.
  • the reflector element 6 is advantageously designed for mounting the accumulator 10.
  • the accumulator 10 is expediently arranged with respect to the reflector element 6 on a side opposite the LED 5, so that the interaction of the light generated by the LEDs 5 with the reflective surface 61 is not impaired by the accumulator 10.
  • Fig. 6 the reflector element 6 is sketched in perspective with the accumulator 10.
  • the accumulator 10 is in the example shown here as a whole elongated, circular cylindrical in a first approximation and arranged horizontally and parallel to the reflector element 6.
  • the vertical extent a of the accumulator 10- that is to say essentially the diameter of the corresponding circular cylinder-corresponds approximately to the distance between the second level N2 and the first level N1. It is preferably provided that for the vertical extension a of the accumulator 10 the following applies: 1 ⁇ 2 (N1 - N2) ⁇ a ⁇ 2 (N1 - N2).
  • the accumulator 10 can thus be arranged in particular at least for the most part below the device carrier 8.
  • the curved portion of the surface 61 more than that Half of the distance d between the front light emitting disc 2 and the rear light emitting disc 3 a. How out Fig. 2 As can be seen, the curved portion of the surface 61 extends parallel to the distance d by a dimension e, which is about two-thirds of the distance d . It is preferably provided that the following applies: e > 1 ⁇ 2 d.
  • the convexly curved region of the surface 61 preferably has a radius of curvature r which approximately corresponds to the radius of the circular cylinder which describes the shape of the accumulator 10.
  • r ⁇ 1 ⁇ 2 a, in particular 1 ⁇ 2 a ⁇ r ⁇ 1 ⁇ 2 d , in particular 1 ⁇ 2 a ⁇ r ⁇ 5/8 d.
  • the arched area preferably extends over an angular range of 180 °.
  • the surface 61 preferably extends plane and parallel to the front light output disk 2, each with a distance f to the front or rear light output disk 2, 3, which is between 1/8 d and 1/4 d.
  • the reflector element 6 preferably has a longitudinal stop element 13 for the accumulator 10.
  • the longitudinal stop element 13 is so arranged between a first position and a second position movable back and forth on the remaining reflector element 6, that it - Fig. 6 indicated - forms a longitudinal stop for the accumulator 10 in the first position, but - as in Fig. 3 indicated - not in the second position.
  • the reflector element 3 can in particular be designed such that it can either be used to hold the accumulator 10 or, as in FIG Fig. 5 indicated - for holding another, appropriately designed, but longer battery 10.1 is suitable.
  • the reflector element 6 also preferably has at least one wire holder 6 for holding a wire.
  • the described design makes it possible for the rechargeable battery 10 or alternatively the longer rechargeable battery 10.1 to be reliably held in the intended position during transport, installation and operation.
  • the reflector element 6 is made of plastic.
  • a particularly simple design and installation of the lamp is made possible when the reflector element 6 is connected in particular only via a latching connection with the equipment carrier 6.
  • this has the reflector element 6 - as exemplified in Fig. 3 shown - locking lugs 61 on.
  • at least two latching lugs 61 can be arranged on both sides.
  • the device carrier 8 preferably has two inner shoulder surfaces 81, which cooperate for latching connection with the locking lugs 61.
  • the front light emitting disc 2 preferably extends directly to the device carrier 8. The same applies to the second light emitting disc third
  • the luminaire furthermore has an optical element 11, which is designed to optically influence the light generated by the LEDs 5.
  • the optical element 11 can be designed to act as a lens.
  • the optical element 11 is profiled and oriented with its longitudinal axis parallel to the frame element 7 or to the printed circuit board 9. In particular, it can be designed as an extrusion profile.
  • the profile of the optical element 11 preferably has two side surfaces 111, 112 sloping downwards on both sides, in order to promote light-technically advantageous steering of the light onto the two light output disks 2, 3.
  • the luminaire according to the invention in particular allows a particularly simple and cost-effective design.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Description

Die Erfindung betrifft eine Leuchte, insbesondere eine Hinweisleuchte mit einer vorderen Lichtabgabescheibe, einer dazu parallelen rückwärtigen Lichtabgabescheibe und mehreren LEDs (LED: lichtemittierende Diode) zur Erzeugung eines Lichts, das in den Zwischenraum zwischen den beiden Lichtabgabescheiben eingestrahlt wird.The invention relates to a luminaire, in particular an indicator lamp with a front light emitting disc, a rear parallel thereto Lichtaufgabescheibe and a plurality of LEDs (LED: light emitting diode) for generating a light which is irradiated into the space between the two light emitting discs.

Eine solche Leuchte in Form einer Hinweisleuchte ist aus der DE 20 2010 002 049 U1 bekannt. Bei dieser Leuchte wird in den, zwischen den beiden Lichtabgabescheiben gebildeten Zwischenraum mittels der LEDs von oben her Licht eingestrahlt. Es besteht hierbei grundsätzlich das Problem, dass die Lichtintensität mit zunehmendem Abstand von den LEDs abnimmt, so dass in der Folge die Lichtabgabe auf den Lichtabgabescheiben mit entsprechend abnehmender Intensität erscheint.Such a lamp in the form of an indicator light is from the DE 20 2010 002 049 U1 known. In this luminaire, light is radiated from above in the intermediate space formed between the two light emission discs by means of the LEDs. In principle, there is the problem that the light intensity decreases with increasing distance from the LEDs, so that as a result the light output appears on the light emitting disks with a correspondingly decreasing intensity.

Aus der DE 31 29 038 A1 ist eine Hinweisleuchte mit zwei Abschlussscheiben bekannt, zwischen denen im oberen Bereich eine Leuchtstofflampe angeordnet ist. Von den unteren Kanten der Abschlussscheiben verläuft jeweils ein Reflektor schräg nach hinten; in der Mitte der Leuchte treffen sich die Reflektoren.From the DE 31 29 038 A1 is a sign lamp with two lenses known between which a fluorescent lamp is located in the upper area. From the lower edges of the lenses a reflector extends obliquely backwards; in the middle of the lamp the reflectors meet.

Aus der DE 92 19 085 U1 ist eine Hinweisleuchte mit einem scheibenförmigen Lichtverteilungskörper bekannt. Über eine schmale Lichteintrittsfläche des Lichtverteilungsköpers wird Licht einer Lampe eingestrahlt; auf der gegenüberliegenden Seite ist ein dachförmiger Reflektor angeordnet, der dazu dient, den lampenfernen Bereich des Lichtverteilungskörpers besonders stark aufzuhellen.From the DE 92 19 085 U1 An indicator lamp with a disc-shaped light distribution body is known. Light from a lamp is radiated via a narrow light entry surface of the light distribution body; on the opposite side a roof-shaped reflector is arranged, which serves to lighten the lamp-distant region of the light distribution body particularly strong.

Der Erfindung liegt die Aufgabe zugrunde, eine entsprechende verbesserte Leuchte anzugeben; insbesondere soll mit der Leuchte auf herstellungstechnisch einfache Weise eine gleichmäßigere Intensitätsverteilung auf den Lichtabgabescheiben erzielt werden können.The invention has for its object to provide a corresponding improved luminaire; In particular, should be able to be achieved on the light output discs with the light on manufacturing technology simple way a more uniform intensity distribution.

Diese Aufgabe wird gemäß der Erfindung mit den in den unabhängigen Ansprüchen angegebenen Gegenständen gelöst. Besondere Ausführungsarten der Erfindung sind in den abhängigen Ansprüchen angegeben.This object is achieved according to the invention with the objects specified in the independent claims. Particular embodiments of the invention are indicated in the dependent claims.

Gemäß der Erfindung ist eine Leuchte, insbesondere eine Hinweisleuchte vorgesehen, die eine vordere lichtdurchlässige Lichtabgabescheibe aufweist sowie eine rückwärtige lichtdurchlässige Lichtabgabescheibe, die derart parallel zu der vorderen Lichtabgabescheibe angeordnet ist, dass zwischen der vorderen Lichtabgabescheibe und der rückwärtigen Lichtabgabescheibe ein Zwischenraum gebildet ist. Weiterhin weist die Leuchte mehrere LEDs zur Erzeugung eines Lichts auf, wobei die LEDs derart angeordnet sind, dass sie das Licht in den Zwischenraum einstrahlen. Außerdem weist die Leuchte ein Reflektorelement auf, das mit Bezug auf den Zwischenraum den LEDs gegenüberliegend angeordnet ist und einen konvex gewölbten Bereich umfasst. Durch das Reflektorelement lässt sich auf vergleichsweise einfache Weise eine Vergleichmäßigung der Lichtintensität über die beiden Lichtabgabescheiben hinweg erzielen. Insbesondere kann dadurch einer Abnahme der Lichtintensität mit zunehmendem Abstand von den LEDs effektiv entgegen gewirkt werden.According to the invention, there is provided a luminaire, in particular a direction indicator lamp, having a front translucent light-emitting disc and a rear translucent light-emitting disc arranged parallel to the front light-emitting disc such that a space is formed between the front light-emitting disc and the rear light-emitting disc. Furthermore, the lamp has a plurality of LEDs for generating a light, wherein the LEDs are arranged such that they radiate the light into the intermediate space. In addition, the luminaire has a reflector element, which is arranged opposite the LEDs with respect to the intermediate space and comprises a convexly curved region. The reflector element makes it possible to achieve equalization of the light intensity across the two light output disks in a comparatively simple manner. In particular, this can effectively counteract a decrease in the light intensity with increasing distance from the LEDs.

Erfindungsgemäß weist das Reflektorelement eine reflektierende Fläche auf, die mit Bezug auf den Zwischenraum einen konvex gewölbten Bereich umfasst. Hierdurch lässt sich auf der, den LEDs gegenüberliegenden Seite des Reflektorelements vorteilhaft Raum für ein weiteres Leuchtenbauteil erzielen, beispielsweise für einen Akkumulator zum Betrieb der LEDs. Außerdem ist die konvexe Form lichttechnisch vorteilhaft mit Bezug auf eine Verteilung des Lichts auf die beiden Lichtabgabescheiben.According to the invention, the reflector element has a reflective surface which, with respect to the intermediate space, comprises a convexly curved region. As a result, space can advantageously be achieved on the side of the reflector element opposite the LEDs for a further luminaire component, for example for an accumulator for operating the LEDs. In addition, the convex shape is technically advantageous with respect to a distribution of the light on the two light emitting discs.

Lichttechnisch vorteilhaft nimmt dabei, in einem Schnitt normal zu der vorderen Lichtabgabescheibe betrachtet, der gewölbte Bereich der reflektierenden Fläche mehr als die Hälfte des Abstands zwischen der vorderen Lichtabgabescheibe und der rückwärtigen Lichtabgabescheibe ein. Hierdurch wird zum Einen das Licht der LEDs besonders wirkungsvoll auf die Lichtabgabescheiben gelenkt. Zum Anderen wird hierdurch ein vergleichsweise großer Bauraum für ein weiteres Leuchtenbauteil geschaffen.Light technically advantageous, considered in a section normal to the front light emitting disc, the curved portion of the reflective surface occupies more than half of the distance between the front light emitting disc and the rear light emitting disc. As a result, on the one hand the light of the LEDs is particularly effectively directed to the light output discs. On the other hand, this creates a comparatively large space for a further lighting component.

Vorzugsweise sind die LEDs an einem unteren Endbereich des Zwischenraums angeordnet, wobei die vordere Lichtabgabescheibe eine Lichtabgabefläche aufweist, die sich nach oben hin bis zu einem ersten Niveau erstreckt und wobei sich das Reflektorelement nach unten hin bis zu einem zweiten Niveau erstreckt, das tiefer liegt als das erste Niveau. Auf diese Weise lässt sich die Leuchte so gestalten, dass sich das Reflektorelement in den Zwischenraum hinein erstreckt. So lässt sich die Leuchte insgesamt besonders kleinräumig gestalten bzw. die Lichtabgabefläche relativ betrachtet besonders groß.Preferably, the LEDs are disposed at a lower end portion of the gap, the front light emitting disk having a light emitting surface extending up to a first level and the reflector element extending downwardly to a second level lower than the first level. In this way, the lamp can be designed so that the reflector element extends into the intermediate space. In this way, the luminaire as a whole can be made particularly small-scale, or the light-emitting surface can be particularly large when viewed in a relatively large way.

Vorzugsweise weist die Leuchte außerdem einen Akkumulator zur Stromversorgung der LEDs auf, der an dem Reflektorelement gehaltert angeordnet ist, insbesondere mit Bezug auf das Reflektorelement auf einer, den LEDs gegenüberliegenden Seite. Raumsparend ist dabei die Leuchte derart gestaltet, dass der Akkumulator zumindest zum größten Teil zwischen dem zweiten Niveau und dem ersten Niveau angeordnet ist. Durch den Akkumulator eignet sich die Leuchte besonders gut als Notlichtleuchte, weil sie sich ohne externe Stromquelle betreiben lässt.Preferably, the lamp also has an accumulator for powering the LEDs, which is arranged supported on the reflector element, in particular with Reference to the reflector element on a side opposite to the LEDs. Space saving while the lamp is designed such that the accumulator is disposed at least for the most part between the second level and the first level. Due to the battery, the light is particularly well suited as an emergency light, because it can be operated without an external power source.

Vorzugsweise ist das Reflektorelement länglich und weist dabei ein Längsanschlag-Element auf, das derart zwischen einer ersten Position und einer zweiten Position hin und her beweglich an dem restlichen Reflektorelement angeordnet ist, dass es in der ersten Position einen Längsanschlag für den Akkumulator bildet, in der zweiten Position jedoch nicht. Auf diese Weise lässt sich das Reflektorelement so gestalten, dass es sich alternativ entweder zur Halterung des Akkumulators oder zur Halterung eines entsprechenden, aber längeren Akkumulators eignet. Handhabungsfreundlich ist dabei das Längsanschlag-Element mittels einem Filmscharnier an dem restlichen Reflektorelement angeordnet.Preferably, the reflector element is elongate and in this case has a longitudinal stop element, which is arranged between a first position and a second position movable back and forth on the rest of the reflector element that it forms a longitudinal stop for the accumulator in the first position, in the second position, however, not. In this way, the reflector element can be designed such that it is alternatively suitable either for holding the accumulator or for holding a corresponding, but longer accumulator. Handling friendly while the longitudinal stop element is arranged by means of a film hinge to the rest of the reflector element.

Herstellungstechnisch vorteilhaft besteht das Reflektorelement aus Kunststoff.In terms of manufacturing technology, the reflector element is made of plastic.

Weiterhin vorzugsweise weist die Leuchte außerdem einen Geräteträger auf, wobei das Reflektorelement über eine Rastverbindung mit dem Geräteträger verbunden ist. Dies ermöglicht eine einfache und montagefreundliche Gestaltung, insbesondere wenn sich die vordere Lichtabgabescheibe unmittelbar bis zu dem Geräteträger erstreckt.Furthermore, preferably, the lamp also has a device carrier, wherein the reflector element is connected via a latching connection with the equipment carrier. This allows a simple and easy to install design, especially when the front light emitting disc extends directly to the equipment rack.

Lichttechnisch vorteilhaft weist die Leuchte weiterhin ein optisches Element zur optischen Beeinflussung des von den LEDs erzeugten Lichts auf. Vorzugsweise ist dabei das optische Element profilförmig, insbesondere als Extrusionsprofil gestaltet. Die Erfindung wird im Folgenden anhand eines Ausführungsbeispiels und mit Bezug auf die Zeichnungen näher erläutert. Es zeigen:

Fig. 1
eine perspektivische Ansicht eines Ausführungsbeispiels einer erfindungsgemäßen Leuchte,
Fig. 2
einen Querschnitt durch die Leuchte,
Fig. 3
eine perspektivische Ansicht des Reflektorelements,
Fig. 4
eine entsprechende Ansicht eines mittleren Bereichs des Reflektorelements, mit einem darin angeordneten Akkumulator,
Fig. 5
eine Ansicht des Reflektorelements mit einem darin angeordneten längeren Akkumulator und
Fig. 6
zum Vergleich hierzu eine entsprechende Ansicht mit dem kürzeren Akkumulator.
In light engineering terms, the luminaire furthermore has an optical element for optically influencing the light generated by the LEDs. Preferably, the optical element is profile-shaped, designed in particular as an extrusion profile. The invention is explained in more detail below with reference to an embodiment and with reference to the drawings. Show it:
Fig. 1
a perspective view of an embodiment of a lamp according to the invention,
Fig. 2
a cross section through the lamp,
Fig. 3
a perspective view of the reflector element,
Fig. 4
a corresponding view of a central region of the reflector element, with an accumulator disposed therein,
Fig. 5
a view of the reflector element with a longer accumulator arranged therein and
Fig. 6
For comparison, a corresponding view with the shorter accumulator.

Fig. 1 zeigt eine Skizze einer perspektivischen Sicht auf eine erfindungsgemäße Leuchte gemäß dem Ausführungsbeispiel, Fig. 2 eine entsprechende Querschnitt-Skizze. Bei der Leuchte handelt es sich um eine Hinweisleuchte, insbesondere zur Darstellung hinterleuchteter Piktogramme. Beispielsweise kann es sich um eine Rettungszeichenleuchte bzw. Notlichtleuchte handeln. Fig. 1 shows a sketch of a perspective view of a lamp according to the invention according to the embodiment, Fig. 2 a corresponding cross-sectional sketch. The luminaire is an indicator light, in particular for displaying backlit pictograms. For example, it may be a rescue light or emergency light.

Bei der Leuchte kann es sich beispielsweise um eine Pendelleuchte handeln.The luminaire may be, for example, a pendant luminaire.

Die Leuchte weist eine vordere lichtdurchlässige Lichtabgabescheibe 2 auf, sowie eine rückwärtige lichtdurchlässige Lichtabgabescheibe 3. Die rückwärtige Lichtabgabescheibe 3 ist dabei derart parallel zu der vorderen Lichtabgabescheibe 2 angeordnet, dass zwischen der vorderen Lichtabgabescheibe 2 und der rückwärtigen Lichtabgabescheibe 3 ein Zwischenraum 4 gebildet ist.The luminaire has a front translucent light emitting disc 2, and a rear translucent light emitting disc 3. The rear light emitting disc 3 is arranged parallel to the front light emitting disc 2, that between the front light emitting disc 2 and the rear light emitting disc 3, a gap 4 is formed.

Die beiden Lichtabgabescheiben 2, 3 können insbesondere jeweils ein Piktogramm aufweisen.The two light emitting discs 2, 3 may in particular each have a pictogram.

Im gezeigten Beispiel ist die Leuchte zum Betrieb derart ausgerichtet vorgesehen, dass die beiden Lichtabgabescheiben 2, 3 senkrecht orientiert sind. In der vorliegenden Beschreibung wird von dieser Orientierung ausgegangen. Allerdings kann grundsätzlich die Leuchte zum Betrieb auch in einer beliebigen anderweitigen Orientierung vorgesehen sein. Die vorliegenden Richtungsangaben sind in einem solchen Fall entsprechend umzudeuten.In the example shown, the luminaire is designed to operate in such a way that the two light emitting disks 2, 3 are oriented vertically. In the present description, this orientation is assumed. However, in principle, the light can be provided for operation in any other orientation. The present directions must be reinterpreted in such a case.

Die vordere Lichtabgabescheibe 2 kann eine Fläche 21 aufweisen, die vorzugsweise rechteckig ist und die eine Außenfläche der Leuchte bildet. Diese Fläche 21 kann dabei insbesondere eine vordere Lichtabgabefläche der Leuchte darstellen. Entsprechendes gilt für eine weitere Fläche 31 bzw. rückwärtige Lichtabgabefläche der rückwärtigen Lichtabgabescheibe 3. Die vordere Lichtabgabefläche und die rückwärtige Lichtabgabefläche können gleich groß gestaltet sein.The front light emitting disc 2 may have a surface 21, which is preferably rectangular and which forms an outer surface of the lamp. This surface 21 may represent in particular a front light emitting surface of the lamp. The same applies to a further surface 31 and rear light emitting surface of the rear light emitting disc 3. The front light emitting surface and the rear light emitting surface can be made the same size.

Im gezeigten Beispiel sind die unteren Randgebiete der beiden Lichtabgabescheiben 2, 3 über ein längliches Rahmenelement 7 miteinander verbunden. Ihre oberen Randgebiete sind über einen länglichen Geräteträger 8 miteinander verbunden. Der Zwischenraum 4 erstreckt sich dabei nach unten hin bis zu dem Rahmenelement 7.In the example shown, the lower edge regions of the two light emitting disks 2, 3 are connected to one another via an elongate frame element 7. Their upper peripheral regions are connected to one another via an elongate device carrier 8. The intermediate space 4 extends downwards to the frame element 7.

Als Lichtquelle weist die Leuchte mehrere LEDs 5 zur Erzeugung eines Lichts auf. Dabei sind die LEDs 5 derart angeordnet, dass sie das Licht in den Zwischenraum 4 einstrahlen. Die Leuchte ist so gestaltet, dass das Licht im Weiteren über die vordere Lichtabgabescheibe 2 und über die rückwärtige Lichtabgabescheibe 3 in einen Außenraum A der Leuchte abgegeben wird. Insbesondere kann es sich bei den LEDs 5 um die einzige Lichtquelle der Leuchte handeln.As a light source, the lamp has a plurality of LEDs 5 for generating a light. In this case, the LEDs 5 are arranged such that they radiate the light into the gap 4. The light is designed so that the light in the further on the front light emitting disc 2 and the rear light emitting disc 3 in a Outside space A of the lamp is discharged. In particular, the LEDs 5 may be the only light source of the luminaire.

Die LEDs 5 sind vorzugsweise längs einer Geraden angeordnet, die parallel zu der vorderen Lichtabgabescheibe 2 und horizontal orientiert verläuft und mit Bezug auf die Darstellung der Fig. 1 senkrecht zu der Zeichenebene. Vorteilhaft sind die LEDs 5 auf einer länglichen Platine 9 angeordnet, die an dem Rahmenelement 7 montiert ist. Dabei sind die Platine 9 und das Rahmenelement 7 parallel zueinander orientiert. Im gezeigten Beispiel wird also das Licht der LEDs 5 von unten her in den Zwischenraum 4 eingestrahlt.The LEDs 5 are preferably arranged along a straight line which runs parallel to the front light emitting disk 2 and horizontally oriented and with reference to the illustration of Fig. 1 perpendicular to the drawing plane. Advantageously, the LEDs 5 are arranged on an elongate board 9, which is mounted on the frame member 7. In this case, the circuit board 9 and the frame element 7 are oriented parallel to each other. In the example shown, therefore, the light of the LEDs 5 is radiated from below into the gap 4.

Weiterhin weist die Leuchte ein Reflektorelement 6 auf, das mit Bezug auf den Zwischenraum 4 den LEDs 5 gegenüberliegend angeordnet ist. Insbesondere kann das Reflektorelement 6 länglich sein und mit seiner Längs- bzw. Hauptachse parallel zu der Geraden, auf denen die LEDs 5 angeordnet sind bzw. zu der länglichen Platine 9 ausgerichtet angeordnet sein.Furthermore, the lamp has a reflector element 6, which is arranged opposite the LEDs 5 with respect to the gap 4. In particular, the reflector element 6 may be elongated and with its longitudinal or main axis parallel to the straight line on which the LEDs 5 are arranged or arranged to be aligned with the elongated circuit board 9.

Durch diese Gestaltung lässt sich erzielen, dass das von den LEDs 5 abgestrahlte Licht auf der gegenüberliegenden Seite des Zwischenraums, hier also "oben", von dem Reflektorelement 6 reflektiert wird, so dass auf den oberen Teilbereichen der beiden Lichtabgabescheiben 2, 3 ein erhöhter Lichteinfall stattfindet. Dadurch lässt sich effektiv einer, nach oben hin abnehmenden Helligkeit auf den beiden Lichtabgabescheiben 2, 3 entgegenwirken.This design makes it possible to achieve that the light emitted by the LEDs 5 is reflected by the reflector element 6 on the opposite side of the intermediate space, in this case "above", so that an increased incidence of light on the upper subregions of the two light output disks 2, 3 takes place. As a result, it is possible effectively to counteract a brightness which decreases toward the top on the two light emitting disks 2, 3.

Das Reflektorelement 6 weist vorzugsweise eine reflektierende Fläche 61 auf, die mit Bezug auf den Zwischenraum 4 einen konvex gewölbten Bereich umfasst, also im gezeigten Beispiel nach unten ausgewölbt ist. Beim gezeigten Beispiel erstreckt sich dabei der konvex gewölbte Bereich der Fläche 61 in den Zwischenraum 4 hinein. Vorteilhaft ist die reflektierende Fläche 61 insgesamt länglich gestaltet und dabei halbzylinderförmig insbesondere halb-kreiszylinderförmig; die entsprechende Zylinderachse erstreckt sich dabei parallel zu der Längsachse des Reflektorelements 6.The reflector element 6 preferably has a reflective surface 61 which, with respect to the intermediate space 4, comprises a convexly curved region, ie is bulged downward in the example shown. In the example shown, the convexly curved region of the surface 61 extends into the intermediate space 4. Advantageously, the reflective surface 61 is designed as a whole elongated and thereby semi-cylindrical in particular semi-circular cylindrical; the corresponding cylinder axis extends parallel to the longitudinal axis of the reflector element 6.

Vorzugsweise erstreckt sich die vordere Lichtabgabefläche 21 nach oben hin bis zu einem ersten Niveau N1 und der gewölbte Bereich der Fläche 61 nach unten hin bis zu einem zweiten Niveau N2, das niedriger bzw. tiefer liegt als das erste Niveau N1.Preferably, the front light emitting surface 21 extends upward to a first level N1 and the curved area of the surface 61 downward to a second level N2 , which is lower and lower than the first level N1 .

Auf diese Weise wird vorteilhaft ein Bauraum für ein weiteres Leuchtenbauteil geschaffen, ohne hierfür signifikante lichttechnische Nachteile in Kauf nehmen zu müssen. So lässt sich insbesondere erzielen, dass der Geräteträger 8 mit einer kleineren vertikalen Erstreckung gestaltet werden kann.In this way, a space for a further lighting component is advantageously created, without having to take significant photovoltaic disadvantages in purchasing. This makes it possible in particular to achieve that the device carrier 8 can be designed with a smaller vertical extension.

Vorzugsweise ist dabei vorgesehen, dass in dem genannten Bauraum ein Akkumulator 10 angeordnet wird bzw. ist, der zur Stromversorgung der LEDs 5 dient. Hierzu ist das Reflektorelement 6 vorteilhaft zur Halterung für den Akkumulator 10 ausgebildet. Dabei ist der Akkumulator 10 mit Bezug auf das Reflektorelement 6 zweckmäßig auf einer, den LED 5 gegenüberliegenden Seite gehaltert angeordnet, so dass durch den Akkumulator 10 die Wechselwirkung des von den LEDs 5 erzeugten Lichts mit der reflektierenden Fläche 61 nicht beeinträchtigt wird.Preferably, it is provided that an accumulator 10 is arranged in said space or is, which serves to power the LEDs 5. For this purpose, the reflector element 6 is advantageously designed for mounting the accumulator 10. In this case, the accumulator 10 is expediently arranged with respect to the reflector element 6 on a side opposite the LED 5, so that the interaction of the light generated by the LEDs 5 with the reflective surface 61 is not impaired by the accumulator 10.

In Fig. 6 ist das Reflektorelement 6 mit dem Akkumulator 10 perspektivisch skizziert. Der Akkumulator 10 ist beim hier gezeigten Beispiel insgesamt länglich, in erster Näherung kreiszylinderförmig und dabei horizontal und parallel zu dem Reflektorelement 6 ausgerichtet angeordnet.In Fig. 6 the reflector element 6 is sketched in perspective with the accumulator 10. The accumulator 10 is in the example shown here as a whole elongated, circular cylindrical in a first approximation and arranged horizontally and parallel to the reflector element 6.

Wie aus Fig. 2 beispielhaft hervorgeht, entspricht im gezeigten Beispiel die vertikale Erstreckung a des Akkumulators 10 - also im Wesentlichen der Durchmesser des entsprechenden Kreiszylinders - in etwa dem Abstand zwischen dem zweiten Niveau N2 und dem ersten Niveau N1. Vorzugsweise ist vorgesehen, dass für die vertikale Erstreckung a des Akkumulators 10 folgendes gilt: ½ (N1 - N2) < a < 2 (N1 - N2). How out Fig. 2 By way of example, in the example shown, the vertical extent a of the accumulator 10-that is to say essentially the diameter of the corresponding circular cylinder-corresponds approximately to the distance between the second level N2 and the first level N1. It is preferably provided that for the vertical extension a of the accumulator 10 the following applies: ½ (N1 - N2) <a <2 (N1 - N2).

Der Akkumulator 10 kann somit insbesondere zumindest zum größten Teil unterhalb des Geräteträgers 8 angeordnet sein.The accumulator 10 can thus be arranged in particular at least for the most part below the device carrier 8.

Lichttechnisch vorteilhaft nimmt, in einem Schnitt normal zu der vorderen Lichtabgabescheibe 2 betrachtet, der gewölbte Bereich der Fläche 61 mehr als die Hälfte des Abstands d zwischen der vorderen Lichtabgabescheibe 2 und der rückwärtigen Lichtabgabescheibe 3 ein. Wie aus Fig. 2 hervorgeht, erstreckt sich der gewölbte Bereich der Fläche 61 parallel zu dem Abstand d um ein Maß e, das etwa zwei Drittel des Abstands d beträgt. Vorzugsweise ist vorgesehen, dass Folgendes gilt: e > ½ d. Light technically advantageous, viewed in a section normal to the front light emitting disc 2, the curved portion of the surface 61 more than that Half of the distance d between the front light emitting disc 2 and the rear light emitting disc 3 a. How out Fig. 2 As can be seen, the curved portion of the surface 61 extends parallel to the distance d by a dimension e, which is about two-thirds of the distance d . It is preferably provided that the following applies: e > ½ d.

Der konvex gewölbte Bereich der Fläche 61 weist vorzugsweise einen Krümmungsradius r auf, der näherungsweise dem Radius des Kreiszylinders entspricht, der die Form des Akkumulators 10 beschreibt. Vorzugsweise gilt dementsprechend r ≈ ½ a, insbesondere ½ a ≤ r < ½ d, insbesondere ½ a ≤ r < 5/8 d. The convexly curved region of the surface 61 preferably has a radius of curvature r which approximately corresponds to the radius of the circular cylinder which describes the shape of the accumulator 10. Preferably, therefore, r ≈ ½ a, in particular ½ a ≦ r <½ d , in particular ½ a ≦ r <5/8 d.

Wie im gezeigten Beispiel der Fall, erstreckt sich der gewölbte Bereich vorzugsweise über einen Winkelbereich von 180°. Zu beiden Seiten des gewölbten Bereichs erstreckt sich die Fläche 61 vorzugsweise plan und parallel zu der vorderen Lichtabgabescheibe 2, jeweils mit einem Abstand f zu der vorderen bzw. rückwärtigen Lichtabgabescheibe 2, 3, der zwischen 1/8 d und 1/4 d beträgt.As in the example shown, the arched area preferably extends over an angular range of 180 °. On both sides of the bulging portion, the surface 61 preferably extends plane and parallel to the front light output disk 2, each with a distance f to the front or rear light output disk 2, 3, which is between 1/8 d and 1/4 d.

Wie in Fig. 3 beispielhaft skizziert, weist das Reflektorelement 6 vorzugsweise ein Längsanschlag-Element 13 für den Akkumulator 10 auf. Das Längsanschlag-Element 13 ist derart zwischen einer ersten Position und einer zweiten Position hin und her beweglich an dem restlichen Reflektorelement 6 angeordnet, dass es - wie in Fig. 6 angedeutet - in der ersten Position einen Längsanschlag für den Akkumulator 10 bildet, jedoch - wie in Fig. 3 angedeutet - in der zweiten Position nicht. Auf diese Weise lässt sich das Reflektorelement 3 insbesondere so gestalten, dass es sich alternativ entweder zur Halterung des Akkumulator 10 oder - wie in Fig. 5 angedeutet - zur Halterung eines anderen, entsprechend gestalteten, aber längeren Akkumulators 10.1 eignet.As in Fig. 3 by way of example, the reflector element 6 preferably has a longitudinal stop element 13 for the accumulator 10. The longitudinal stop element 13 is so arranged between a first position and a second position movable back and forth on the remaining reflector element 6, that it - Fig. 6 indicated - forms a longitudinal stop for the accumulator 10 in the first position, but - as in Fig. 3 indicated - not in the second position. In this way, the reflector element 3 can in particular be designed such that it can either be used to hold the accumulator 10 or, as in FIG Fig. 5 indicated - for holding another, appropriately designed, but longer battery 10.1 is suitable.

Eine besonders einfache Gestaltung lässt sich erzielen, wenn das Längsanschlag-Element 13 mittel einem Filmscharnier an dem restlichen Reflektorelement 6 angeordnet ist. Hierdurch lässt sich erzielen, dass das Längsanschlag-Element 13 handhabungsfreundlich durch ein einfaches Umklappen zwischen den beiden Positionen hin- und her bewegt werden kann. Wie aus einem Vergleich der Figuren 5 und 6 hervorgeht, befindet sich der längere Akkumulator 10.1, wenn er wie vorgesehen an dem Reflektorelement 6 gehaltert ist, über dem Längsanschlag-Element 13.A particularly simple design can be achieved if the longitudinal stop element 13 is arranged by means of a film hinge on the remaining reflector element 6. This makes it possible to achieve that the longitudinal stop element 13 can be moved back and forth in a manner that is easy to handle by simply folding over the two positions. As if from a comparison of Figures 5 and 6 As can be seen, the longer accumulator 10.1, if it is held on the reflector element 6 as intended, is located above the longitudinal stop element 13.

Wie aus Fig. 4 hervorgeht, weist das Reflektorelement 6 außerdem vorzugsweise wenigstens einen Drahthalter 6 zur Halterung eines Drahts auf.How out Fig. 4 As can be seen, the reflector element 6 also preferably has at least one wire holder 6 for holding a wire.

Durch die beschriebene Gestaltung ist ermöglicht dass der Akkumulator 10 bzw. alternativ der längere Akkumulator 10.1 während eines Transports, einer Installation und eines Betriebs zuverlässig im der vorgesehen Position gehalten wird.The described design makes it possible for the rechargeable battery 10 or alternatively the longer rechargeable battery 10.1 to be reliably held in the intended position during transport, installation and operation.

Herstellungstechnisch vorteilhaft besteht das Reflektorelement 6 aus Kunststoff.In terms of manufacturing technology, the reflector element 6 is made of plastic.

Eine besonders einfache Gestaltung und Montage der Leuchte ist ermöglicht, wenn das Reflektorelement 6 insbesondere lediglich über eine Rastverbindung mit dem Geräteträger 6 verbunden ist. Im gezeigten Beispiel weist hierfür das Reflektorelement 6 - wie beispielhaft in Fig. 3 gezeigt - Rastnasen 61 auf. Beispielsweise können mit Bezug auf die Längserstreckung des Reflektorelements 6 zu beiden Seiten jeweils wenigstens zwei Rastnasen 61 angeordnet sein.A particularly simple design and installation of the lamp is made possible when the reflector element 6 is connected in particular only via a latching connection with the equipment carrier 6. In the example shown, this has the reflector element 6 - as exemplified in Fig. 3 shown - locking lugs 61 on. For example, with respect to the longitudinal extent of the reflector element 6, at least two latching lugs 61 can be arranged on both sides.

Wie in Fig. 2 gezeigt, weist der Geräteträger 8 vorzugsweise zwei Innenschulterflächen 81 auf, die zur Rastverbindung mit den Rastnasen 61 zusammenwirken.As in Fig. 2 shown, the device carrier 8 preferably has two inner shoulder surfaces 81, which cooperate for latching connection with the locking lugs 61.

Wie beispielhaft in Fig. 2 skizziert, erstreckt sich die vordere Lichtabgabescheibe 2 vorzugsweise unmittelbar bis zu dem Geräteträger 8. Analoges gilt für die zweite Lichtabgabescheibe 3.As exemplified in Fig. 2 sketched, the front light emitting disc 2 preferably extends directly to the device carrier 8. The same applies to the second light emitting disc third

Lichttechnisch vorteilhaft weist die Leuchte weiterhin ein optisches Element 11 auf, das zur optischen Beeinflussung des von den LEDs 5 erzeugten Lichts ausgebildet ist. Das optische Element 11 kann als Linse wirkend gestaltet sein.In terms of lighting technology, the luminaire furthermore has an optical element 11, which is designed to optically influence the light generated by the LEDs 5. The optical element 11 can be designed to act as a lens.

Herstellungstechnisch vorteilhaft ist das optische Element 11 profilförmig und mit seiner Längsachse parallel zu dem Rahmenelement 7 bzw. zu der Platine 9 orientiert angeordnet. Insbesondere kann es als Extrusionsprofil gestaltet sein.In terms of manufacturing technology, the optical element 11 is profiled and oriented with its longitudinal axis parallel to the frame element 7 or to the printed circuit board 9. In particular, it can be designed as an extrusion profile.

Im Schnitt normal zu der vorderen Lichtabgabescheibe 2 betrachtet weist das Profil des optischen Elements 11 vorzugsweise zwei nach beiden Seiten hin abfallend geneigte Seitenflächen 111, 112 auf, um eine lichttechnisch vorteilhafte Lenkung des Lichts auf die beiden Lichtabgabescheiben 2, 3 zu fördern.Viewed in a section normal to the front light-emitting disk 2, the profile of the optical element 11 preferably has two side surfaces 111, 112 sloping downwards on both sides, in order to promote light-technically advantageous steering of the light onto the two light output disks 2, 3.

Die erfindungsgemäße Leuchte ermöglicht insbesondere eine besonders einfache und kostengünstige Gestaltung.The luminaire according to the invention in particular allows a particularly simple and cost-effective design.

Claims (12)

  1. Luminaire, in particular an informationluminaire, comprises
    - a front translucent light emitting disc (2),
    - a rear translucent light emitting disc (3) arranged parallel to the front light emitting disc (2) so that a gap (4) is formed between the front light emitting disc (2) and the rear light emitting disc (3),
    - a plurality of LEDs (5) for generating a light, wherein the LEDs (5) are arranged so that they emit the light into the intermediate space (4),
    - a reflector element (6) which is arranged opposite the LEDs (5) with respect to the intermediate space (4),
    characterized in that
    the reflector element (6) comprises a reflective surface (61) having a convexly curved region with respect to the intermediate space (4).
  2. Luminaire according to claim 1,
    wherein, viewed in a section normal to the front light emitting disc (2), the curved portion of the reflecting surface (61) occupies more than half the distance (d) between the front light emitting disc (2) and the rear light emitting disc (3).
  3. Luminaire according to claim 1 or 2,
    wherein the LEDs (5) are arranged at a lower end region of the intermediate space (4),
    wherein the front light emitting disk (2) comprises a light emitting surface (21) extending up to a first level (N1) and wherein the reflector element (6) extends down to a second level (N2) that is lower than the first level (N1).
  4. Luminaire according to one of the preceding claims, further comprising
    - an accumulator (10) for powering the LEDs (5),
    - wherein the accumulator (10) is arranged to be supported on the reflector element (6), in particular on a side opposite the LEDs (5) with respect to the reflector element (6).
  5. Luminaire with the features mentioned in claims 3 and 4, and which is designed so that the accumulator (10) is arranged at least for the most part between the second level (N2) and the first level (N1).
  6. Luminaire according to one of the preceding claims,
    wherein the reflector element (6) is elongated and comprises a longitudinal stop element (13) which is so arranged to be reciprocally movable on the remaining reflector element (6) between a first position and a second position, that it forms a longitudinal stop for the accumulator (10) in the first position, but not in the second position.
  7. Luminaire according to claim 6,
    wherein the longitudinal stop element (13) is arranged on the remaining reflector element (6) by means of a film hinge.
  8. Luminaire according to one of the preceding claims,
    wherein the reflector element (6) is made of plastic.
  9. Luminaire according to one of the preceding claims further comprises
    - an equipment carrier (8), wherein the reflector element (6) is connected with the equipment carrier (8) via a latching connection.
  10. Luminaire according to claim 9,
    wherein the front light emitting disc (2) extends directly to the equipment carrier (8).
  11. Luminaire according to one of the preceding claims further comprises
    - an optical element (11) for optically influencing the light generated by the LEDs (5).
  12. Luminaire according to claim 11,
    wherein the optical element (11) is profiled, in particular wherein it is designed as an extrusion profile.
EP13163336.4A 2012-04-12 2013-04-11 Lamp, in particular warning lamp Active EP2650867B1 (en)

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DE202012101308U DE202012101308U1 (en) 2012-04-12 2012-04-12 Luminaire, in particular indicator light

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EP2650867A3 (en) 2014-04-30
DE202012101308U1 (en) 2013-07-15
EP2650867A2 (en) 2013-10-16

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