EP3872399A1 - Vertical lighting device and external lighting device - Google Patents

Abstract

The disclosure relates to a vertical lighting device (1), with a carrier component (2) which is arranged upright in relation to a surface to be illuminated and extends in the vertical direction of construction; a light source (5) which is arranged on the carrier component (2) and has a preferred light emission in the horizontal direction; a first light guide element (3) which is assigned to the light source (5) and is arranged on the carrier component (2) on one side of the light source; and a second light guide element (4) which is formed separately from the first light guide element (3) and is also assigned to the light source (5) and is arranged on the carrier component (2) on an opposite side of the light source (5). A first reflector surface (6) formed on the inside of the first light guide element (3) is inclined towards the second light guide element (4) in relation to the vertical direction of construction and a second reflector surface (7) formed on the inside of the second light guide element (4) is in relation to a horizontal Construction direction, which runs transversely to the vertical construction direction, inclined towards the first light guide element (3). The first and the second light guide element (4) are jointly encompassed for light guidance by a reflector arrangement with which the light emitted by the light source is emitted obliquely with respect to the vertical direction of construction. Furthermore, an outside lighting device is provided. (Fig. 1)

Description

The invention relates to a vertical lighting device and an outdoor lighting device.

background

Vertical lighting devices are used, for example, for outdoor lighting, in particular in connection with path or street lighting. Here, lighting elements radiating downwards can be mounted on, on or in lanterns, for example to illuminate streets or sidewalks from above. In order to use the light output of the light source efficiently, different types of lighting elements are known.

Like a type of lantern, the light source emits directly downwards. The light intensity distribution can be influenced by means of a reflector surrounding the light source or a lens optic. The disadvantage of this type of construction is that a lantern carrying the lighting element must have a section pointing downwards towards the street or towards the path so that the street or path can be illuminated directly.

Known vertically radiating lighting systems are designed to be uniformly luminous in a semicircle or in a full circle around the vertical lighting unit. With this principle, it is not possible to illuminate horizontal evaluation areas in the outside space, such as paths and streets, in accordance with the given technical standards for the illumination of such defined evaluation areas.

Diffuse light units radiating in a semicircle or in a full circle around the vertical light unit regularly do not meet the glare control requirements for street lighting, so that applicable standards for street lighting with different road users and intersecting traffic routes are not complied with.

Other known embodiments of vertically radiating luminaire systems for traffic lighting use centrally arranged light-emitting radiation sources, surrounded by vertical lamellar bodies with diffuse matt or reflective lamellar surfaces, which radiate diffusely uniformly around the vertical luminaire element, but reduce the glare from the vertical radiation source. Examples of such embodiments are street lamps with vertically radiating light sources of different designs.

Other forms of cylindrical or polygonal-shaped vertical lighting elements use vertically single- or multi-storey lighting elements arranged horizontally to the traffic route, in which reflector elements or comprehensive optical lens elements are used which correspond to the use of the traffic route and which surround one or more light sources arranged on the horizontal planes.

summary

The object of the invention is to create a vertical lighting device and an outside lighting device with which a surface area to be illuminated can be illuminated in an improved manner.

To achieve this, a vertical lighting device according to independent claim 1 is created. Furthermore, an external lighting according to the independent claim 5 is provided. Refinements are the subject of dependent subclaims.

According to one aspect, a vertical lighting device is provided which has the following: a carrier component which is arranged upright with respect to a surface to be illuminated and in this case extends in the vertical construction direction; a light source which is arranged on the carrier component and has a preferred light emission in the horizontal direction; a first light guide element which is assigned to the light source and is arranged on the carrier component on one side of the light source, a first reflector surface formed on the inside of the first light guide element being inclined with respect to the vertical direction of construction towards the second light guide element; and a second light guide element, which is formed separately from the first light guide element and is also assigned to the light source and is arranged on the carrier component on an opposite side of the light source, a second reflector surface formed on the inside of the second light guide element in relation to a horizontal assembly direction that is opposite to the vertical assembly direction runs transversely, is inclined towards the first light guide element. The first and the second light guiding element are jointly comprised for light guiding by a reflector arrangement with which the light emitted by the light source is emitted obliquely with respect to the vertical direction of construction.

According to a further aspect, an outside lighting device is provided for lighting a floor surface in the outside area with the vertical lighting device.

In the case of the vertical lighting device, the reflector arrangement can consist of the first and the second light guide element.

The first light guide element deflects light emitted horizontally by the light source in the preferred emission direction, in particular in the direction of the second light guide element. In the case of the first and the second light guide element, the light is guided in particular on the basis of light reflection.

Components assigned to the light source can be arranged on the carrier component, for example a cooling device assigned to the light source, for example a heat sink. As an alternative or in addition, other wiring elements can also be arranged on the carrier component. Electrical connections can also be accommodated on the carrier component. The carrier component can be formed with a circuit board on which circuit elements and the light source are arranged.

One or more light-emitting diodes, for example, can be used as the light source. In general, a light source can be used which emits the generated light predominantly or essentially completely in the preferred light emission direction.

The reflector surfaces can be provided with different surface structures, which enables the reflector surfaces to be prepared for preferred reflection directions, for example. In one embodiment it can be provided that a surface structuring with a honeycomb structure is formed on the reflector surfaces.

The second light guide element can be arranged partially or essentially completely covering the light source in the viewing direction from the front onto the carrier component. In this way, a glare protection element is formed in the viewing direction from the front onto the carrier component.

The second reflector surface can be inclined with respect to the horizontal direction of construction at an angle of approximately 30 degrees to approximately 60 degrees to the first light guide element, alternatively at an angle of approximately 40 degrees to approximately 50 degrees. In one embodiment, the angle can be approximately 45 degrees.

The first reflector surface can be inclined with respect to the vertical direction of construction at an angle of approximately 10 degrees to approximately 40 degrees to the second light guide element, alternatively at an angle of approximately 20 degrees to approximately 30 degrees.

The first reflector surface can be designed as an essentially flat reflector surface with a slight surface curvature. In this or other configurations, the first reflector surface can overall have an angular shape, for example be square. Within the first reflector surface, partial reflector surfaces can be provided which in turn have an angular surface shape, for example a square surface shape.

The first reflector surface can have highly reflective surface sections and at least one reflector element with a diffusely reflective surface.

The reflector element can be formed protruding from the first reflector surface. The reflector element can be formed with a flat design in cross section. The diffusely reflective surfaces can be formed on the reflector element on opposite flat sides. The reflector element can be formed with a cross section which tapers in the direction away from the reflector surface. The cross-sectional area can be essentially triangular, for example. The reflector element can extend in the vertical direction of construction essentially over the entire width of the first reflector surface. In an end region of the reflector element that is proximal with respect to the light source, an edge-side recess can be provided, optionally opposite the light source.

The reflector element can be formed separating or separating from one another on the first reflector surface adjacent highly reflective surface sections.

A lateral glare shield can be formed on the edge of the second reflector surface. The edge-side glare protection ensures end glare in the direction of view from the side onto the vertical lighting device. The lateral glare protection can be formed on one or both sides with a respective wall section which is arranged upright or protruding in relation to the second reflector surface. On an inside facing the second reflector surface, the side glare protection can have a light-reflecting surface. The reflection behavior in the area of the side glare protection can be the same as or different from the reflection behavior in the area of the second reflector surface. For example, a diffuse reflection can be provided on the side glare protection, whereas the second reflector surface is highly reflective in this or other embodiments.

The light source can be assigned a lens device or lens system which is set up to guide light which is emitted laterally by the light source and not in the direction of preferred light emission. The lens device can be set up to guide or guide the light received by the lens device from the light source onto the first reflector surface.

The lens device can be arranged encompassing the light source on several sides. A light-guiding or light-guiding section of the lens device can in this case be semicircular. The lens device can overall have a U-shape, in which case and in other embodiments the lens device can have a mounting part in addition to the light-guiding section. In the mounting part, recesses can be provided which serve to receive fastening means in order to mount the lens device in the vertical lighting device.

An end section of the second light guide element which is distal with respect to the carrier component can protrude towards the front with respect to the first reflector surface. When looking from the side onto the vertical lighting device, the second light guide element can form an overhang or a roof device for the first reflector surface, whereby when the vertical lighting device is used, for example, adverse weather effects on the first reflector surface are hindered or completely avoided.

The second light guide element can have a protruding edge section on an edge which is distal with respect to the carrier component and which is arranged opposite the light source. This creates a supplementary or alternative glare protection. The protruding edge section can be designed to taper in an end region which is distal in relation to the second light guide element.

At least one further light source with an associated further reflector arrangement can be arranged on the carrier component in a stacked arrangement extending in the vertical direction of construction, which is designed corresponding to the reflector arrangement with the first and the second light guide element. A plurality of light sources, each with an associated arrangement of light guide elements, are formed on the upright support component. The reflector assemblies can be aligned be to illuminate sub-areas that are adjacent to one another in the area of an area to be illuminated, so that the entire area to be illuminated is illuminated with the aid of the arrangement of light sources and associated reflector arrangements. Alternatively, several light sources with an assigned reflector arrangement illuminate the same (partial) area to be illuminated. The plurality of light sources with an associated reflector arrangement can be arranged on the carrier component directly adjacent to one another, as a result of which the respective first reflector surfaces form a wall-shaped arrangement of first reflector surfaces. The partial areas of the strip are separated by the respectively assigned second light guide element.

Description of examples

Fig. 1

eine schematische perspektivische Darstellung einer vertikalen Beleuchtungseinrichtung;

Fig. 2

eine schematische Darstellung der vertikalen Beleuchtungseinrichtung aus Fig. 1 von vorn;

Fig. 3

eine schematische Darstellung der vertikalen Beleuchtungseinrichtung aus Fig. 1 von der Seite,

Fig. 4

eine schematische Darstellung eines ersten Lichtführungselements einer vertikalen Beleuchtungseinrichtung;

Fig. 5

eine schematische perspektivische Darstellung eines zweiten Lichtführungselements der vertikalen Beleuchtungseinrichtung;

Fig. 6

eine schematische Darstellung einer Lichtabsorbereinrichtung;

Fig. 7

eine schematische perspektivische Darstellung einer Linseneinrichtung;

Fig. 8

eine schematische Darstellung eines Trägerbauteils für die vertikale Beleuchtungseinrichtung und

Fig. 9

eine schematische Darstellung einer vertikalen Beleuchtungseinrichtung, bei der mehrere Lichtquellen mit jeweils zugeordneter Reflektoranordnung übereinander gestapelt angeordnet sind.

In the following, further exemplary embodiments are explained in more detail with reference to figures of a drawing. In the figures show:

Fig. 1

a schematic perspective illustration of a vertical lighting device;

Fig. 2

a schematic representation of the vertical lighting device Fig. 1 from the beginning;

Fig. 3

a schematic representation of the vertical lighting device Fig. 1 of the page,

Fig. 4

a schematic representation of a first light guide element of a vertical lighting device;

Fig. 5

a schematic perspective illustration of a second light guide element of the vertical lighting device;

Fig. 6

a schematic representation of a light absorber device;

Fig. 7

a schematic perspective illustration of a lens device;

Fig. 8

a schematic representation of a support component for the vertical lighting device and

Fig. 9

a schematic representation of a vertical lighting device in which a plurality of light sources, each with an associated reflector arrangement, are stacked on top of one another.

Fig. 1 shows a schematic perspective illustration of a vertical lighting device 1, in which a first light guide element 3 and a second light guide element 4 are mounted on a carrier component 2, each of which is assigned to a light source 5. The light source 5 can be, for example, a light-emitting diode (LED) or act as an LED arrangement with several LEDs. When installing the vertical lighting device 1, the carrier component 2 is arranged upright in a vertical direction of construction with respect to a surface to be illuminated, for example a floor surface such as a path or street section (see also example Fig. 9 below).

The light source 5 has a preferred emission direction for the light generated transversely to the vertical construction direction, that is to say in an essentially horizontal construction direction.

The light emitted by the light source preferably in the horizontal construction direction is guided and guided with the help of a first reflector surface 6 on the first light guide element 3 and a second reflector surface 7 on the second light guide element 4 in such a way that light is emitted at an angle to the vertical construction direction, in particular to a below the vertical lighting device 1 arranged floor surface. Here, the first and the second reflector surfaces 6, 7 work together as a reflector arrangement, it being possible for further reflector elements (not shown) to be optionally provided. In particular, the light emitted by the light source 5, preferably in the horizontal construction direction, is deflected towards the first reflector surface 6 by means of the second reflector surface 7, in order to be emitted obliquely downwards from there.

In the Fig. 2 and 3 the vertical lighting device 1 is shown from the front and from the side. In particular from Fig. 3 the result is that, in the case of the second light guide element 4, a section 8 which is distal in relation to the carrier component 2 protrudes towards the front relative to the first reflector surface 6 (left side in FIG Fig. 3 ). The second light guide element 4 thus forms a protective device for the first reflector surface 6, in particular against the effects of the weather, for example rain from above.

The second reflector surface 7 on the second light guide element 4 is inclined towards the first reflector surface 6 in relation to the vertical direction of construction. The first reflector surface 6 is inclined towards the second reflector surface in relation to the vertical construction direction (and also in relation to the horizontal construction direction).

The light source 5 is according to Fig. 1 a lens device or optics 9 is assigned in such a way that light which is emitted laterally by the light source 5, i.e. not in the preferred horizontal emission direction, is guided to the first reflector surface 6 with the aid of the lens device 9. The lens device 9, which in Fig. 7 is shown further in detail, thus serves, on the one hand, to optimize the light yield with regard to that of the light source 5 emitted light, and on the other hand, a glare protection is formed with the lens device 9, since the lens device 9 at least partially covers the light source 5, for example in the viewing direction from below in the longitudinal direction of the carrier component 2.

According to Fig. 7 the lens device 9 has a lens section 9a and a mounting section 9b connected to it in one piece and in which mounting openings 9c are provided. During the assembly of the lens device 9 on the carrier component 2, fastening means, for example screws, can be inserted into the assembly openings 9c. The lens device 9 can be made of a plastic material. In the embodiment shown, the lens device 9 has a U-shape and thus surrounds the light source 5 on several sides, the lens section 9a forming the light-guiding function being arranged in a semicircular shape on a front side.

In the case of the vertical lighting device 1, in the embodiment shown, the first and second light guide elements 3, 4 are mounted as separate components on the carrier component 2.

Fig. 4 and 5 show the first and the second light guide element 3, 4 each as a single component. According to Fig. 4 the first light guide element 3 has adjacent surface sections 10, 11 which are provided with a highly reflective surface, with a surface structuring 12 with a honeycomb shape being provided in the embodiment shown. Separating the surface sections 10, 11 from one another, a reflector element 13 is provided which is formed with a wall section 14 which protrudes from the first reflector surface 6. A light switch is provided with the reflector element 13, surface sections of the wall section 14 being provided with a diffusely reflecting surface. A recess 16 is provided in an end section 15 which is proximal with respect to the carrier component 2.

To the side of the surface sections 10, 11 with a highly reflective surface, wall sections 17, 18 are provided as part of a housing of the first light guide element 3. Recesses 19 serve to accommodate fastening means during the assembly of the first light guide element 3 on the carrier component 2.

The second light guide element 4 has according to Fig. 5 a highly reflective surface 20, which is also provided with a honeycomb surface structure in the embodiment shown. In other embodiments, the honeycomb structure omitted or carried out with a different geometric shape. In a region 21 which is distal with respect to the carrier component 2, a protruding edge section 22 is provided which, in the exemplary embodiment shown, is formed essentially in the center and with a tapering surface shape. With the protruding edge section 22, a (supplementary) glare protection is formed in the viewing direction from the front onto the vertical lighting device 1 (see also FIG Fig. 1 ).

Furthermore, lateral wall sections 23, 24 are provided on the second light guide element 4, which serve as lateral glare protection and optionally have a light-reflecting surface on the inside, for example are diffusely reflecting.

A receptacle 25 for a light absorber 26 is provided on the second light guide element 4.

Fig. 6 shows the (upper) light absorber 26 with a light-absorbing surface 27 and mechanical connecting elements 28. In the vertical lighting device 1, the light absorber 26 is arranged on the second light guide element 4 (cf. Fig. 1 ).

In Fig. 8 an embodiment of the carrier component 2 is shown in which a plurality of light sources 30 are arranged at a distance from one another along the longitudinal extent of the carrier component 2. In a comparable manner, assembly openings 31 are provided along the carrier component 2. An electrical connecting terminal 33 is arranged in a lower end region 32.

With the help of the support component 2 from Fig. 8 can be a vertical lighting device according to Fig. 9 are produced, in which a plurality of light sources 5, each with an associated reflector arrangement, are arranged one above the other along the carrier component 2 in a vertical structure, so that an (upright) band-shaped arrangement 40 of first reflector surfaces 6 results, with the second light guide element 4 between adjacent first reflector surfaces 6 placed light absorber 26 is arranged.

The features disclosed in the above description, the claims and the drawing can be important both individually and in any combination for the implementation of the various designs.

List of reference symbols

1

vertical lighting device

2

Carrier component

3

first light guide element

4th

second light guide element

5

Light source

6th

first reflector surface

7th

second reflector surface

8th

distal section

9

Lens device

10, 11

neighboring surface sections

12th

Surface structuring

13th

Reflector element

14th

Wall section

15th

proximal end section

16

Recess

17, 18

Wall sections

19th

Recess

20th

highly reflective surface

21

distal area

22nd

protruding edge section

23, 24

side wall sections

25th

recording

26th

Light absorber

27

light-absorbing surface

28

mechanical fasteners

30th

Light sources

31

Mounting holes

32

lower end area

33

electrical connection terminal

40

band-shaped arrangement

Claims (15)

Vertical lighting device (1), with: - A support component (2) which is arranged upright with respect to a surface to be illuminated and in this case extends in the vertical direction of construction; - A light source (5) which is arranged on the carrier component (2) and has a preferred light emission in the horizontal direction; - A first light guide element (3) which is assigned to the light source (5) and is arranged on the carrier component (2) on one side of the light source; and - A second light guide element (4) which is formed separately from the first light guide element (3) and is also assigned to the light source (5) and is arranged on the carrier component (2) on an opposite side of the light source (5), wherein - A first reflector surface (6) formed on the inside of the first light guide element (3) is inclined in relation to the vertical direction of construction towards the second light guide element (4) and - A second reflector surface (7) formed on the inside of the second light guide element (4) is inclined towards the first light guide element (3) in relation to a horizontal construction direction which runs transversely to the vertical construction direction; wherein the first and the second light-guiding element (4) for guiding the light are comprised together by a reflector arrangement with which the light emitted by the light source is emitted obliquely with respect to the vertical direction of construction. Vertical lighting device (1) according to claim 1, characterized in that the second light guide element (4) is arranged at least partially covering the light source (5) in the viewing direction from the front onto the carrier component (2). Vertical lighting device (1) according to claim 1 or 2, characterized in that the second reflector surface (7) is inclined with respect to the horizontal direction of construction at an angle of about 30 degrees to about 60 degrees to the first light guide element (3), alternatively with an angle of about 40 degrees to about 50 degrees. Vertical lighting device (1) according to at least one of the preceding claims, characterized in that the first reflector surface (6) with respect to the vertical direction of construction at an angle of about 10 degrees to about 40 degrees to the second light guide element (4) is inclined, alternatively at an angle of about 20 degrees to about 30 degrees. Vertical lighting device (1) according to at least one of the preceding claims, characterized in that the first reflector surface (6) is designed as an essentially flat reflector surface with a slight surface curvature. Vertical lighting device (1) according to at least one of the preceding claims, characterized in that the first reflector surface (6) has highly reflective surface sections (10, 11) and at least one reflector element (12) with a diffusely reflective surface. Vertical lighting device (1) according to Claim 6, characterized in that the reflector element (12) is designed to protrude from the first reflector surface (6). Vertical lighting device (1) according to claim 6 or 7, characterized in that the reflector element (12) is formed on the first reflector surface (6) to separate highly reflective surface sections (10, 11) adjacent to one another. Vertical lighting device (1) according to at least one of the preceding claims, characterized in that a lateral glare protection is formed on the edge of the second reflector surface (7). Vertical lighting device (1) according to at least one of the preceding claims, characterized in that the light source (5) is assigned a lens device (9) which is set up to guide light coming from the light source (5) laterally and not in the direction preferred light emission is emitted. Vertical lighting device (1) according to Claim 10, characterized in that the lens device (9) is arranged to encompass the light source (5) on several sides. Vertical lighting device (1) according to at least one of the preceding claims, characterized in that in relation to the carrier component (2) the distal end portion of the second light guide element (4) protrudes towards the front with respect to the first reflector surface (6). Vertical lighting device (1) according to at least one of the preceding claims, characterized in that the second light guide element (4) has a protruding edge section (22) on an edge (21) distal with respect to the carrier component (2), which edge section (22) is arranged opposite the light source is. Vertical lighting device (1) according to at least one of the preceding claims, characterized in that at least one further light source with an associated further reflector arrangement is arranged on the carrier component (2) in a stacked arrangement extending in the vertical direction of construction, which is the reflector arrangement with the first and the second light guide element (3, 4) is designed accordingly. Outdoor lighting device for lighting a floor surface in the outdoor area, with a vertical lighting device (1) according to at least one of the preceding claims.

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