EP2430358B1 - Street lighting device - Google Patents

Abstract

An illumination device comprising a housing positionable at a distance from an area to be illuminated and having at least one lighting module, on a support in the housing, that has lighting units having the same light distribution characteristics. Each of the lighting units contains lighting elements and associated lenses arranged in front of the same in the light-emitting direction. Different lighting modules may include lighting units having different light distribution characteristics, while the lighting units have optical axes running parallel to each other. At least one lighting unit is configured such that its light distribution characteristics have at least one asymmetrical section relative to a central plane of the lighting unit.

Description

The invention relates to a lighting device for roads, paths and the like with a housing which is positioned at a distance to a surface to be illuminated, wherein in the housing on a support at least one light module is arranged with a number of light units same light distribution characteristic containing each a number of light elements and each associated with the light elements and arranged in the light emission direction in front of the same lenses for generating a predetermined light distribution, wherein different light modules have at least light units of different light distribution characteristic.

From the EP 1 916 468 A1 For example, a lighting device for roads, paths and the like is known, which has a housing with a plurality of lighting modules for generating a predetermined light distribution. The housing of the lighting device is mounted on a mast arranged on a roadside so that a longitudinal section of the road can be illuminated as a surface to be illuminated. The light modules arranged in the housing are elongate and have a carrier, on which lighting units with a light distribution characteristic of the same type are attached in rows. Each of the lighting units essentially consists of an LED lighting element and a lens arranged in the same way in the light emission direction. The light units of the light module are covered by a common transparent cover.

To produce a predetermined light distribution of the lighting device, a plurality of lighting modules with light units of different types or different light distribution characteristics are provided. A first light module has light units with first lenses, which emit a relatively narrow light cone relative to a center plane. A second light module has light units with second lenses, which have a relatively wide beam of light relative to a central axis radiate. Third lighting modules have light units with third lenses that radiate light cones in a solid angle range that lies between the light cone of the first light unit and the second light unit. The lighting modules with the lighting units, which emit a narrow cone of light in the solid angle range, are positioned in the housing so that they illuminate an edge region of the surface to be illuminated. A main area of the surface to be illuminated is illuminated by the lighting modules with the broad-emitting light units. The light cones of the different lighting modules or light units are each formed symmetrically with respect to a central axis. For homogeneous illumination of the road section, the structure of the lighting device is thus relatively complex and expensive. In addition, it is disadvantageous that a plurality of different types of lenses formed have to be used.

The EP 1988 576 A1 shows a street lamp with an asymmetric light distribution. The street light has a series of LEDs, which, as usual, are arranged on a printed circuit board. Each of the LEDs has a so-called primary lens and an asymmetric secondary lens arranged in the light path thereafter. The asymmetrical lens is partially overlapped by a reflective cover. This cover is a reflector arranged laterally on the lens, which is necessary to achieve the desired asymmetrical light distribution.

Object of the present invention is therefore to develop a lighting device such that in a simple way demand-oriented a predetermined light distribution for homogeneous illumination of a room is achieved.

The object is achieved by a lighting device according to claim 1.

The particular advantage of the invention is that a predetermined light distribution, in particular a relatively homogeneous light distribution, can be generated in an effective manner by combining lighting units with an asymmetrical light emission characteristic. Due to the fact that the optical axes of the light units of the same or different type, that is to say light units with the same or different light distribution characteristics, run parallel to one another, the lighting units or lighting modules can be installed in a predetermined manner be arranged the same or different level. The lighting device according to the invention allows a modular design and at the same time the possibility of easy retrofitting of existing and installed lighting devices for roads, paths and the like. A three-dimensional arrangement of the lighting modules is not required.

According to a preferred embodiment of the invention, the light units each have asymmetrically constructed lenses, so that with respect to a center plane on a first side a first partial light bundle in a first solid angle range and on an opposite second side a second partial light bundle radiated in a different from the first solid angle range second solid angle range becomes. The light distribution characteristic of the lighting units thus has an asymmetry section, so that the first solid angle region can be larger, for example, than the second solid angle region. The first solid angle region can thus predefine a preferred direction or a preferred spatial angle in which the luminous flux and / or the luminous intensity is greater than in the second solid angle region.

According to a development of the invention, the lighting units of the same type and / or of the different types have the same lenses. In order to form a differently oriented asymmetry section, based on the extension of the light module, of the light distribution characteristic of the light module, the lenses are arranged rotated relative to a support of the light module receiving the light units. The reference axis is coaxial or parallel offset from the optical axis of the light units. The invention thus enables solely by rotation of the lenses, the generation of a different light distribution characteristic, wherein the predetermined light distribution can be generated by modular superposition of the light distribution characteristics of the lighting units or the lighting modules.

According to a development of the invention, the lighting units are arranged in rows on a common support to form an elongated lighting module. Advantageously, the lighting module thus has the dimension of a known lighting fixture, so that a simple retrofitting thereof is ensured.

According to a development of the invention, the lighting modules can be linear and / or frame-shaped and / or square or star-shaped or propeller-shaped or cross-shaped, so that depending on existing or desired dimensions of the lighting device, the predetermined light distribution can be formed. By selecting light modules of different types, the required light distribution can be adjusted.

According to a development of the invention, such elongated lighting modules are the same and / or different types combined in such a way that asymmetric lighting is achieved to illuminate a relatively narrow street, the lighting device is positioned at the height of a roadside. The lighting modules or light units are oriented in such a way that the preferred direction of the lighting modules point in the same direction. Advantageously, a predetermined longitudinal section of the road can thus be homogeneously illuminated.

According to a development of the invention, the lighting modules for illuminating a road from a central strip of the same are arranged oriented so that a symmetrical illumination is ensured on both sides of the central strip in the predetermined longitudinal section of the road. In this case, a first half of the lighting modules have a first preferred direction and a second half of the lighting modules have a preferred direction opposite to the same.

According to a development of the invention, the lighting modules for illuminating a place from a center thereof are arranged oriented so that the asymmetrical light distribution characteristics of the lighting modules in four different directions, with respect to a central axis in the circumferential direction adjacent lighting modules offset by 90 ° to each other arranged preferred directions , Advantageously, a substantially rotationally symmetrical illumination of a road can thereby be provided.

According to a development of the invention, the lighting modules for illuminating a corner region of a road are oriented in such a way that two preferred directions of the partial light bundles arranged at a right angle to one another are formed. In this way, a junction or a corner region of an intersection can be homogeneously illuminated.

According to a development of the invention, the light sources are designed as LED chips and covered by the LED chips and the lens-carrying carrier of the light module with a transparent cover. The lighting modules thus always have the same structure, wherein only the lens may have a relation to their symmetry axis differently twisted position. Advantageously, the light module thus has a relatively simple structure.

Embodiments of the invention are explained below with reference to the drawings.

Fig. 1

eine perspektivische Darstellung einer Beleuchtungsvorrichtung mit rahmenförmig angeordneten Leuchtmodulen von unten gesehen,

Fig. 2

eine Ansicht der Beleuchtungsvorrichtung gemäß Figur 1 von unten,

Fig. 3

einen Schnitt durch die Beleuchtungsvorrichtung gemäß Figur 2 entlang der Schnittlinie III-III in Figur 2,

Fig. 4

eine perspektivische Darstellung des Leuchtmoduls mit teilweise aufgeschnittener Abdeckscheibe,

Fig. 5

eine Explosionsdarstellung des Leuchtmoduls,

Fig. 6

einen Schnitt durch eine Leuchteinheit des Leuchtmoduls entlang der Schnittlinie VI-VI in Figur 2,

Fig. 7

einen Schnitt durch eine Leuchteinheit des Leuchtmoduls entlang der Schnittlinie VII-VII in Figur 2,

Fig. 8a

eine schematische Draufsicht eine doppelrahmenförmige Beleuchtungsvorrichtung,

Fig. 8b

eine schematische Draufsicht auf eine doppellinienförmige Beleuchtungsvorrichtung,

Fig. 8c

eine schematische Draufsicht auf eine kreuzförmige Beleuchtungsvorrichtung,

Fig. 8d

eine schematische Draufsicht auf eine propellerförmige Beleuchtungsvorrichtung,

Fig. 8e

eine schematische Draufsicht auf eine linienförmige Beleuchtungsvorrichtung nach einer ersten Ausführungsform,

Fig. 8f

eine schematische Draufsicht auf eine linienförmige Beleuchtungsvorrichtung nach einer zweiten Ausführungsform,

Fig. 9a

eine schematische Draufsicht auf die rahmenförmige Beleuchtungsvorrichtung gemäß den Figuren 1 bis 3 nach einer ersten Konfiguration, wobei die Leuchtmodule dieselbe Vorzugsrichtung aufweisen,

Fig. 9b

eine schematische Draufsicht auf einen Längsabschnitt einer Straße, in der die Positionierung der Beleuchtungsvorrichtung dargestellt ist,

Fig. 9c

eine asymmetrische Lichtverteilung der Beleuchtungsvorrichtung nach Figur 9a,

Fig. 10a

eine schematische Draufsicht auf die rahmenförmige Beleuchtungsvorrichtung gemäß den Figuren 1 bis 3 nach der ersten Konfiguration, wobei jeweils zwei Leuchtmodule entgegengesetzte Vorzugsrichtungen aufweisen,

Fig. 10b

eine schematische Draufsicht auf einen Längsabschnitt einer Straße, in der die Positionierung der Beleuchtungsvorrichtung dargestellt ist,

Fig. 10c

eine symmetrische Lichtverteilung der Beleuchtungsvorrichtung nach Figur 10a,

Fig. 11a

eine schematische Draufsicht auf die rahmenförmige Beleuchtungsvorrichtung gemäß den Figuren 1 bis 3 nach einer zweiten Konfiguration, wobei die Leuchtmodule jeweils unterschiedliche nach außen weisenden Vorzugsrichtungen aufweisen,

Fig. 11 b

eine schematische Draufsicht auf einen Längsabschnitt einer Straße, in der die Positionierung der Beleuchtungsvorrichtung dargestellt ist,

Fig. 11c

eine rotationssymmetrische Lichtverteilung der Beleuchtungsvorrichtung nach Figur 11a,

Fig. 12a

eine schematische Draufsicht auf die rahmenförmige Beleuchtungsvorrichtung gemäß den Figuren 1 bis 3 nach der ersten Konfiguration, wobei jeweils zwei Leuchtmodule eine um 90° versetzte Vorzugsrichtung zu den beiden anderen Leuchtmodulen aufweist,

Fig. 12b

eine schematische Draufsicht auf einen Längsabschnitt einer Straße, in der die Positionierung der Beleuchtungsvorrichtung dargestellt ist und

Fig. 12c

eine eckförmige Lichtverteilung der Beleuchtungsvorrichtung nach Figur 12a.

Show it:

Fig. 1

a perspective view of a lighting device with frame-shaped light modules seen from below,

Fig. 2

a view of the lighting device according to FIG. 1 from underneath,

Fig. 3

a section through the lighting device according to FIG. 2 along the section line III-III in FIG. 2 .

Fig. 4

a perspective view of the light module with partially cut cover,

Fig. 5

an exploded view of the light module,

Fig. 6

a section through a lighting unit of the lighting module along the section line VI-VI in FIG. 2 .

Fig. 7

a section through a lighting unit of the lighting module along the section line VII-VII in FIG. 2 .

Fig. 8a

a schematic plan view of a double frame lighting device,

Fig. 8b

a schematic plan view of a double-line lighting device,

Fig. 8c

a schematic plan view of a cross-shaped lighting device,

Fig. 8d

a schematic plan view of a propeller-shaped lighting device,

Fig. 8e

a schematic plan view of a line-shaped lighting device according to a first embodiment,

Fig. 8f

a schematic plan view of a line-shaped lighting device according to a second embodiment,

Fig. 9a

a schematic plan view of the frame-shaped lighting device according to the FIGS. 1 to 3 according to a first configuration, wherein the lighting modules have the same preferred direction,

Fig. 9b

a schematic plan view of a longitudinal section of a road, in which the positioning of the lighting device is shown,

Fig. 9c

an asymmetrical light distribution of the lighting device according to FIG 9a

Fig. 10a

a schematic plan view of the frame-shaped lighting device according to the FIGS. 1 to 3 after the first configuration, wherein each two lighting modules have opposite preferred directions,

Fig. 10b

a schematic plan view of a longitudinal section of a road, in which the positioning of the lighting device is shown,

Fig. 10c

a symmetrical light distribution of the lighting device according to FIG. 10a .

Fig. 11a

a schematic plan view of the frame-shaped lighting device according to the FIGS. 1 to 3 according to a second configuration, wherein the lighting modules each have different outward-pointing preferred directions,

Fig. 11b

a schematic plan view of a longitudinal section of a road, in which the positioning of the lighting device is shown,

Fig. 11c

a rotationally symmetrical light distribution of the lighting device according to FIG. 11a .

Fig. 12a

a schematic plan view of the frame-shaped lighting device according to the FIGS. 1 to 3 after the first configuration, with two lighting modules each having a preferred direction to the other two lighting modules offset by 90 °,

Fig. 12b

a schematic plan view of a longitudinal portion of a road, in which the positioning of the lighting device is shown and

Fig. 12c

a corner-shaped light distribution of the lighting device according to figure 12a ,

A lighting device 1 for roads, paths and the like according to a first embodiment is in FIGS. 1 to 3 shown. It has a frame-shaped housing 2, which is connected via a foot 3 with a mast, not shown. The housing 2 is thus arranged at a predetermined distance from a surface to be illuminated (road, path, etc.). The lighting device 1 is thus formed mushroom-shaped in connection with the foot 3.

The lighting device 1 is segment-like and consists of a plurality of rectilinear lighting modules 4, which are each arranged on a frame side 5 of the lighting device 1. The frame sides 5 of the lighting device 1 define a square opening 6. Of corner regions of the frame-shaped housing 2 thus formed support webs 8 extend at an angle of approximately 45 ° to a mast axis or symmetry axis 9 of the lighting device 1. The frame-shaped housing 2 points at one Bottom 10 of the same four recesses 11, which are each associated with a frame side 5. Within this recess 11 in each case the light module 4 is enclosed and closed by a transparent cover 12.

As in particular from FIG. 2 2, a luminous module 4 'with a first light distribution characteristic (of a first type) is arranged on opposite frame sides 5 of the housing 2, and a luminous module 4 "of a second light distribution characteristic (of a second type) is arranged on further two opposite frame sides 5 Lighting modules 4, 4 ', 4 "is based on the FIGS. 4 to 7 described in more detail below.

In the FIGS. 4 and 5 a lighting module 4 'of the first type is shown, wherein at an opening edge 13 of a trough-shaped receptacle 14, a carrier (support plate 15) can be fastened. The support plate 15 is formed as an elongated or line-shaped printed circuit board, which arranged in rows with eight light-emitting elements (LED lighting elements, LED chips 16) and in Hauptlichtabstrahlrichtung 17 before the same each a shell-shaped lens 18 is fitted. An LED chip 16 and a lens 18 associated therewith each form a lighting unit 19 of a first type, in which light is emitted according to a first light distribution characteristic.

Like from the FIGS. 6 and 7 can be seen, the light emitting unit 19 radiates with respect to a median plane M thereof, which intersects an optical axis 20 of the light unit 19, a first partial light beam 21 in a first solid angle range 22, which is relative to the central axis M is greater than a second solid angle range 23, in a second partial light beam 24 is radiated on a respect to the central axis M opposite second side is. This asymmetrical light distribution characteristic is caused by the shaping of the lens 18, wherein the light coming from the LED chip 16 is deflected by reflection and / or refraction such that the first partial light beam 21 and the second partial light beam 24 produce an asymmetrical light distribution characteristic with respect to the center plane M. , The center plane M extends in the lighting unit of the first type 19 transversely to the longitudinal extent of the support plate 15th

How out FIG. 7 it can be seen, the lens 18 is shaped such that a partial light beam 25 is radiated symmetrically with respect to a center plane N arranged offset by 90 ° to the median plane M. The second center plane N extends in the longitudinal direction of the carrier plate 15 in the light unit 19 of the first type and intersects the optical axis 20. The first center plane M and the second center plane N each extend perpendicular to the carrier plate 15.

How out FIG. 6 can be seen, the lens 18 on one side a first flat wing 26 and a second steep wing 27 on. The relatively flat first wing 26 causes the emission of a relatively wide first partial light beam 21 in the first solid angle region 22 (65 °). The relatively steep two-wing 27 causes the radiation of the second partial light beam 24 in the second solid angle region 23 (40 °). The first partial light beam 21 is thus radiated at a larger angle to the center plane M than the second partial light beam 24. The light unit of the first type 19 thus has a preferred direction V in the direction of an end face of the support plate 15 on which the relatively flat first wing 26 of the lens 18 faces. The first partial light beam 21 and the second partial light beam 24 thus form an asymmetry section of the light distribution characteristic with respect to the center plane M.

A lighting unit 28 of a second type differs from the lighting unit 19 of the first type in that the lens 18 is rotated by 90 ° with respect to a reference axis of the support plate 15 is positioned. The reference axis is arranged coaxially with the optical axis 20 of the lighting unit 28. How out FIG. 2 it can be seen that the row-like arranged light units 28 of the second type, the lighting module 4 "of the second type, the flat wings 26 of the respective lenses 18 in the same preferred direction V have as the flat wings 26 of the lenses 18 of the light unit 19 of the light modules 4 ' Thus, a lighting device 1 having an asymmetrical light distribution (light distribution characteristic) serving to illuminate a road 29, the lighting device 1 being disposed in a transition area between the road 29 and a bicycle / walkway 30, is provided Fig. 9a, 9b , In FIG. 9b the mast axis 9 of the lighting device 1 is shown. In FIG. 9c the asymmetrical and relatively homogeneous light distribution L1 of the lighting device 1 is shown.

From the Figures 2 and 3 It can be seen that the optical axes 20 of the first type of lighting units 19 and the second type of lighting units 28 are parallel to one another. The carrier plates 15 of the lighting modules 4, 4 ', 4 "extend in a common plane which run perpendicular to the mast axis 9 and perpendicular to the optical axis 20. The lighting modules 4, 4', 4" thus extend essentially in two-dimensional space, wherein they are substantially parallel to a longitudinal section 31 of the road 29, which is detected by the light beam of the lighting device 1.

It can be seen that the light units 19, 28 have the same components, namely the same LED chips 16 and the same lenses 18. They differ only in that the lenses 18 are positioned at 90 ° to the reference axis 20. According to an alternative embodiment, not shown further lighting modules also light units have, in which the lens 18 is rotated by 180 ° to the lens 18 of the light module 4 'of the first type are arranged. Alternatively, the lighting modules 4, 4 ', 4 "may also only partially comprise luminous units of the same type For example, a relatively long luminous module may have luminous units of different types.

In the present exemplary embodiments, the lighting modules 4, 4 ', 4 "each have light units in which the lenses 18 have the same relative position to the support plate 15 of the light module 4, 4', 4".

According to an alternative embodiment of a lighting device 1 'according to the FIGS. 10a to 10c can the frame-shaped housing 2 - as in the lighting device 1 - be equipped with two light modules 4 'of the first type and two light modules 4 "of the second type, the arranged on opposite sides of the frame 5 lighting modules 4' and 4", however, opposite and not as in the lighting device 1 - same preferred directions V have. How out FIG. 10a it can be seen, although the light modules 4 ', 4 "arranged on opposite frame sides 5 have the same type, they are oriented so as to be oriented 180 ° to the mast axis 9, so that light beams with uniformly distributed preferential directions V radiate in two opposite directions by superposition Preferably, therefore, this lighting device 1 'can be positioned on a central strip 32 of the road 29, the preferred directions V extending transversely to the central strip 32 for the homogeneous alignment of the longitudinal section 31 of the road 29 FIG. 10c a light distribution L2 caused by the lighting device 1 'is shown.

According to a further embodiment of a lighting device 1 "according to the FIGS. 11a to 11c For example, unlike the lighting device 1, the frame-shaped housing 2 can be equipped only with lighting modules 4 '' of the second type The lighting modules 4 '' are positioned such that the preferred directions V thereof face away from the mast axis 9, then in that the illumination device 1 ", which is preferably arranged at a center 33 of a place 34, can serve for the homogeneous illumination thereof in accordance with the light distribution L 3. The preferred direction V of the light modules 4" respectively point in different directions. Advantageously, a rotationally symmetrical illumination of a square 34 can thus take place.

According to another embodiment of a lighting device 1 "'according to the FIGS. 12a to 12c two lighting modules 4 'of the first type and two lighting modules 4 "of the second type can be provided, whereby only two preferred directions V are formed, which are offset by 90 ° with respect to the mast axis 9. Advantageously, a homogeneous lighting of a junction or a corner region 35 of a road 29 according to the light distribution L4 according to FIG. 12c respectively.

According to a further embodiment of the invention according to the FIG. 8a For example, two frame-shaped lighting devices 1 'can also be connected to form a double-frame-shaped lighting device 36. The two frame-shaped lighting devices 1 'are arranged on both sides of the mast axis 9 and can be connected via retaining arms 37 each with the mast. This lighting device 36 is preferably used for relatively wide roads, in particular multi-lane roads, wherein the lighting device 36 is arranged in the region of a central strip 32.

According to a further embodiment of the invention according to FIG. 8b may be provided a double-line lighting device 38, wherein two lighting modules 4 are arranged on both sides of the mast axis 9 extending parallel to each other.

According to a further embodiment of the invention according to the FIG. 8c four lighting modules 4 may also be arranged in a cross shape at an angle of 90 ° to each other to form a cross-shaped lighting device 39.

Alternatively, three lighting modules 4 can also be arranged at an angle of 120 ° about the mast axis 9 to form a propeller-shaped lighting device 40.

According to a further embodiment of the invention according to the FIG. 8e For example, a line-shaped lighting device 41 with a plurality of lighting modules 4 arranged one behind the other in the longitudinal direction can be provided.

According to a further embodiment of a linear lighting device 42, the lighting modules 4 may also be arranged only parallel and flush with each other.

The invention allows a simple adaptation to the lighting requirements due to the modular design. In particular, only two different light modules 4 ', 4 "can be different configurations of lighting devices realize.

The invention can be used not only for street lighting, but also in the field of industrial or residential lighting. For example, the lighting device according to the invention can be used for lighting in wet rooms, in explosion-proof rooms, in the kitchen area, in furniture and the like.

LIST OF REFERENCE NUMBERS

1, 1 ', 1 ", 1"'

lighting device

2

frame-shaped housing

3

foot

4, 4 ', 4 "

Lighting modules

5

frame side

6

opening

7

8th

retaining webs

9

axis of symmetry

10

bottom

11

recesses

12

cover plate

13

opening edge

14

admission

15

support plate

16

LED chips

17

Hauptlichtabstrahlrichtung

18

lens

19

light unit

20

optical axis

21

first partial light bundle

22

first solid angle range

23

second solid angle range

24

second partial light bundle

25

Light bundle 25

26

first flat wing

27

second steep wing

28

light unit

29

Street

30

Cycle / Walkway

31

Longitudinal section of the road

32

central reservation

33

Focus

34

space

35

corner

36

lighting device

37

holding arms

38

lighting device

39

lighting device

40

lighting device

41

lighting device

42

lighting device

43

44

45

46

47

48

L1

light distribution

L2

light distribution

L3

light distribution

L4

light distribution

M

midplane

N

midplane

V

preferred direction

Claims (14)

1. A lighting apparatus (1, 1', 1", 1"') for roads, paths and the like, comprising a housing (2) which can be positioned at a distance from an area to be illuminated, wherein

   - at least several lighting modules (4, 4') are arranged in the housing (2) on a carrier (15);

   - the lighting modules (4, 4') respectively comprise a number of lighting units (19, 28) of the same light distribution characteristics;

   - the lighting units (19, 28) respectively comprise a number of lighting elements (16) and lenses (18) respectively associated with the lighting elements (16) and arranged in front of said units in the light emitting direction for generating a predetermined light distribution;

   - different lighting modules (4, 4') comprise lighting units (19, 28) of different light distribution characteristics;

   - lighting units (19, 28) of the same light distribution characteristics and/or different light distribution characteristics comprise optical axes (20) which extend in parallel with respect to each other, and

   - at least one lighting unit (19, 28) is arranged in such a way that the light distribution characteristics generated by said unit comprise at least one asymmetric section relating to a central plane (M) of the lighting unit (19, 28), characterized in that

   at least one of the lenses (18) comprises a first flat wing (26) in order to produce an emission of a broad first partial light beam (21) in a first solid angle range (22), and comprises a second steep wing (27) in order to produce an emission of a second partial light beam (24) in a second solid angle range (23).
2. Lighting device as in claim 1, wherein the lenses (18) assigned to the lamp units (19, 28) are of an asymmetric design whereby on a first side of the central plane (M) intersecting the optical axis the coupled light is emitted as a first partial light beam (21) with a first dihedral range (22), while on a second side of the same central plane (M) a second partial light beam (24) is emitted in a second dihedral range (23) that is different in size from the first dihedral range (22) so as to form the asymmetric section of the light distribution characteristic.
3. Lighting device as in claim 1 or 2, wherein the first partial light beam (21) emitted in the larger first dihedral range (22) determines a preferred direction (V) of the light distribution characteristic of the lamp unit (19, 28) and/or of the light module (4).
4. Lighting device as in one of the claims 1 to 3, wherein the lamp units (19, 28) of the same light distribution characteristic are provided with lenses (18) mounted in the same relative position in relation to the circuit board (15) of the light module (4).
5. Lighting device as in one of the claims 1 to 4, wherein the lamp units (19, 28) of the same type and/or of a different type are provided with identical lenses (18), which lenses (18) of lamp units (19, 28) of different types are turned at an angle relative to each other around a reference axis (20).
6. Lighting device as in claim 5, wherein the reference axis (20) extends in a perpendicular direction relative to the circuit board (15) of light module (4) and/or to the lamp unit (19, 28) and/or coaxially with optical axis (20) of lamp unit (19, 28).
7. Lighting device as in one of the claims 1 to 6, wherein the lenses (18) of light module (4) are mounted in a common relative position in relation to circuit board (15) of light module (4) or in a common second relative position turned by 90° or 180° around the reference axis (20) in relation to the first relative position, or in a different first relative position and second relative position.
8. Lighting device as in one of the claims 1 to 7, wherein the lamp units (19, 28) are mounted in rows on a common circuit board (15) to form an elongated light module (4).
9. Lighting device as in one of the claims 1 to 8, wherein the light modules (4, 4', 4") are arranged in a linear and/or frame-shaped or square or star-shaped or propeller-shaped or cross-shaped formation, with the light modules (4, 4', 4") extending in a perpendicular direction relative to a pole of a lighting device (1) or parallel to the surface area (29) to be illuminated.
10. Lighting device as in one of the claims 1 to 9, wherein a number of elongated light modules (4) are each provided with a lens (18) of the same relative position in relation to the circuit board (15) and the elongated light modules (4) and/or the lenses (18) of the light modules (4) are arranged with an orientation whereby, for illuminating a street (29), the light modules (4) share the same preferred direction (V).
11. Lighting device as in one of the claims 1 to 10, wherein a number of elongated light modules (4) are each provided with a lens (18) in the same relative position in relation to the circuit board (15) and the elongated light modules (4) and/or the lenses (18) of the light modules (4) are arranged with an orientation whereby, for illuminating the street (29) from above a median (32), the preferred directions (V) of half the number of light modules (4) point the opposite way.
12. Lighting device as in one of the claims 1 to 11, wherein a number of four elongated light modules (4) are provided with lenses (18) in the same relative position in relation to the circuit board (15) and the elongated light modules (4) and/or the lenses (18) of the light modules (4) are arranged in a manner whereby, for illuminating a square (34) from its central point (33), the preferred directions (V) of the light modules (4) point four different ways, circumferentially extending at a 90° angle relative to each other around a central axis (9).
13. Lighting device as in one of the claims 1 to 12, wherein a number of four elongated light modules (4) are provided with lenses (18) in the same relative position in relation to the circuit board (15) and the elongated light modules (4) and/or the lenses (18) of the light modules (4) are arranged in a manner whereby, for illuminating a corner area (35), there are two preferred directions (V) at a 90° angle relative to each other.
14. Lighting device as in one of the claims 1 to 13, wherein the light source is in the form of an LED light source (16) and the circuit board (15) of the light module (4) on which the LED light source (16) and the lens (18) are mounted is sealed off by a transparent cover plate (12).

Images