LED lighting device and LED lighting system

Abstract

The invention relates to an LED lighting device for generating a predetermined light distribution function, comprising a lighting housing in which an LED lighting arrangement and a primary optics unit are arranged, and the LED lighting arrangement is dimensioned and aligned such that the predetermined light distribution function can be achieved in a simpler manner.

Description

Technical background

[0001] The invention generally relates to the field of luminaires, in particular outdoor luminaires, which are designed to generate a predetermined light distribution function, in particular a light distribution curve (LDC), in an environment of the luminaire. In particular, the invention aims to provide a luminaire which can emit light from an LED illuminant arrangement from an interior of the luminaire into the environment in an advantageously simple, in particular cost-effective and / or material-saving, in particular sustainable, manner, so that the predetermined LDC is achieved, for example by advantageous arrangement, dimensioning and / or alignment of the LED illuminant arrangement, a primary optics unit and / or an optical cover of the luminaire, in particular LED lighting device. Task

[0002] The object of the invention is to provide an LED lighting device which enables advantageous properties with regard to a given LDC in an environment of the LED lighting device and thereby improves disadvantages of the prior art. General description of the invention

[0003] The invention is based on an LED lighting device, in particular an LED lighting system, for generating a predetermined light distribution function comprising: - at least one luminaire housing, which has a roof section, a base section, a column section connecting the roof section to the base section, and an optical cover arranged between the roof section and the base section, which has a greater maximum extension along an installation axis of the luminaire housing than perpendicular to the installation axis, - an LED illuminant arrangement arranged in the luminaire housing, which has at least one LED illuminant sub-array comprising a plurality of LED illuminant elements for generating light, and - a primary optical unit for deflecting the light from the LED lighting elements, which is arranged at least in sections between the LED lighting elements and the optical cover.

[0004] It is proposed that the LED lighting arrangement has a maximum extension along the installation axis that measures at least 25% of the maximum extension of the optical cover along the installation axis. The LED lighting device is designed, in particular, as a light, preferably an outdoor light, which is preferably weatherproof. For example, the LED lighting device can be designed as a street light, in particular a street lamp, or an outdoor light, such as a garden, patio, path, or park light.The LED lighting device is preferably designed, through the configuration, in particular the dimensioning, arrangement and / or shape of the lighting housing, in particular the optical cover, the LED lamp arrangement and / or the primary optics unit, to generate a predetermined, preferably defined, light distribution function in an environment, preferably in a close range of the LED lighting device, in particular outside the lighting housing. The installation axis is preferably aligned at least substantially parallel to a longitudinal axis of the lighting housing, in particular the optical cover and / or the column section. The installation axis is preferably aligned at least substantially parallel to a direction of a principal force of gravity acting on the LED lighting device.Preferably, the at least one luminaire housing is designed to be rotationally symmetrical to an axis of symmetry of the luminaire housing, in particular at least twice, preferably at least substantially completely. Preferably, the installation axis is aligned at least substantially parallel to the axis of symmetry of the at least one luminaire housing. A "longitudinal axis" of an object is understood to mean, in particular, an axis that runs parallel to a longest edge of a smallest, imaginary, geometric cuboid that just completely encloses the object, and preferably runs through a geometric center of the object, in particular of the cuboid.“Substantially parallel” is to be understood here in particular as an alignment of a direction relative to a reference direction, in particular in a plane, wherein the direction has a deviation from the reference direction of in particular less than 8°, advantageously less than 5° and particularly advantageously less than 2°. Preferably, the at least one luminaire housing is at least substantially closed, in particular closed except for manufacturing and / or assembly tolerances. In particular, the at least one optical cover can be closed in every cross-section, viewed at least substantially perpendicular to the installation axis, in particular as a one-piece component. “Integral” is to be understood in particular as formed in one piece, wherein the one piece is preferably produced from a single blank, a mass and / or a casting, for example in an injection molding process.The expression “essentially perpendicular” is intended here in particular to define an orientation of a direction relative to a reference direction, wherein the direction and the reference direction, in particular viewed in a projection plane, enclose an angle of 90° and the angle has a maximum deviation of in particular less than 8°, advantageously less than 5° and particularly advantageously less than 2°. Preferably, the at least one luminaire housing is made of a metal material, glass material and / or a plastic. Preferably, the roof section and / or the base section is made of a metal material. Preferably, a metal material is a material which is at least 10%, preferably at least 20%, particularly preferably at least 50%, and very particularly preferably completely, in particular by volume, made of at least one metal.Preferably, the optical cover is formed at least partially, preferably at least largely, from a glass material, in particular frosted glass material, and / or a plastic. Preferably, each subsection of the roof section is formed from the same homogeneous material. Preferably, each subsection of the optical cover is formed from the same homogeneous material. Preferably, each subsection of the base section is formed from the same homogeneous material. Preferably, the base section is formed from the same material as the roof section. Preferably, the roof section is connected to the column section. Preferably, the base section is connected to the column section. Preferably, the roof section is arranged in direct contact with the column section. Preferably, the roof section is connected to the optical cover.The roof section is preferably arranged in direct contact with the optical cover. The roof section preferably has a rounded, preferably circular, outer contour when viewed along the installation axis of the luminaire housing. The roof section can have an angular, for example triangular, quadrangular, such as in particular square or rectangular, pentagonal, hexagonal, octagonal or the like, outer contour when viewed along the installation axis of the luminaire housing. The roof section is preferably shaped like a geometric cone, in particular like a truncated geometric cone with a blunt tip. The blunt tip preferably forms one end of the luminaire housing along the installation axis, which end is in particular arranged facing away from the base section.Preferably, the blunt tip is formed as a surface of the roof section facing away from the optical cover, which surface preferably has a, in particular averaged, surface normal that is aligned at least substantially parallel to the installation axis. Preferably, the blunt tip has a maximum extent perpendicular to the installation axis that is at most as large as a maximum extent of the optical cover perpendicular to the installation axis. Preferably, the blunt tip has a maximum extent perpendicular to the installation axis that is at least 5%, preferably at least 10%, more preferably at least 20%, and most preferably at least 30% smaller than a maximum extent of the optical cover perpendicular to the installation axis, in particular measured with respect to the greater extent.Preferably, the blunt tip has a maximum extension perpendicular to the erection axis that is at least a factor of two, preferably at least a factor of three, particularly preferably at least a factor of four, and most preferably at least a factor of eight, smaller than a maximum extension of the roof section at least substantially perpendicular to the erection axis. Preferably, the roof section is shaped like a blunt pyramid with a regular triangular, quadrangular, pentagonal, hexagonal, or similar base surface. Preferably, the roof section is designed with a roof slope of 5° to 45°, preferably of 8° to 30°, particularly preferably of 10° to 20°, and most preferably of 12° to 20°, such as 14° or 15°.Preferably, the roof section has a maximum extension at least substantially parallel to the installation axis, which is at least a factor of 1.5, preferably at least a factor of 1.7, and particularly preferably at least a factor of two, smaller than a maximum extension of the base section at least substantially parallel to the installation axis. Preferably, the roof section has a maximum extension at least substantially parallel to the installation axis, which is at least a factor of two, preferably at least a factor of three, particularly preferably at least a factor of three, and most preferably at least a factor of five, smaller than a maximum extension of the optical cover at least substantially parallel to the installation axis. Preferably, the optical cover is hollow-cylindrical with two base sides and one shell side.Preferably, the optical cover is at least partially transparent, in particular at least substantially transmissive to the light generated by the LED lighting elements. Preferably, “at least substantially transmissive” is to be understood as at least 70% transmissive with respect to a light intensity. Preferably, the at least one optical cover extends materially from an inner radius, in particular one different from zero, radially to an outer radius, wherein the outer radius is in particular a maximum of 10%, preferably a maximum of 5%, particularly preferably a maximum of 2%, larger than the inner radius. Preferably, the roof section and the base section are arranged on opposite sides, in particular the base sides, of the optical cover, in particular connected to the optical cover. Preferably, the column section is designed as a cylindrical column with two base sides and one shell side.Alternatively, the column section can be designed as a plurality of columns, which are preferably at least doubly rotationally symmetrical. Preferably, the roof section and the base section are arranged on opposite sides, in particular the base sides, of the column section, and are in particular connected to the column section, for example in one piece, in particular by welding. Preferably, the column section has at least the same maximum extension, at least substantially parallel to the installation axis, as the optical cover. In particular, the column section can have a plurality of, in particular at least two, column subsections. Each column subsection preferably connects the roof section to the base section. Preferably, all column subsections are of the same design, in particular shaped and / or dimensioned.Preferably, a longitudinal axis of the column section, in particular of each column subsection, is aligned at least substantially parallel to the installation axis. Preferably, the base section has, in a cross-section, in particular perpendicular to the installation axis, the same outer contour as the optical cover and / or the roof section. Preferably, the base section is formed by at least one base subsection and a further base subsection. Preferably, the base subsection has, over an entire extension of the base subsection along the installation axis, the same maximum extension perpendicular to the installation axis. Preferably, the further base subsection has a conical shape with a blunt tip when viewed perpendicular to the installation axis.Preferably, a maximum extension of the further base subsection perpendicular to the installation axis is the same as a maximum extension of the base subsection perpendicular to the installation axis. Preferably, the luminaire housing, in particular the optical cover, delimits a housing cavity in which the primary optics unit and / or the LED illuminant arrangement are / is arranged. Preferably, the LED illuminant arrangement is arranged entirely within the luminaire housing, in particular the housing cavity, in particular when viewed in a cross-section perpendicular to the installation axis. Preferably, the LED illuminant arrangement comprises one or more LED illuminant sub-assemblies. Preferably, each LED illuminant sub-assembly is formed by at least one LED illuminant element for generating light and at least one illuminant carrier on which the respective at least one LED illuminant element is arranged.Preferably, the at least one, in particular each, illuminant carrier is strip-shaped, in particular shaped like an elongated plate. Preferably, the at least one, in particular each, illuminant carrier is formed from a CEM3 circuit board material and / or FR4 circuit board material. Preferably, each LED illuminant sub-assembly has a plurality of LED lighting elements, such as ten, fifteen, twenty, thirty or similar. Preferably, all LED lighting elements of an LED illuminant sub-assembly are arranged equidistant from one another on the at least one illuminant carrier, in particular along the installation axis and / or, for example, along a longitudinal axis of the at least one illuminant carrier. Preferably, the at least one, in particular all, LED lighting elements are designed as one, preferably mid-power, LED luminaire. Preferably, all illuminant carriers are designed identically, in particular shaped and / or dimensioned.Preferably, each illuminant carrier has two end regions at mutually opposite ends of the respective illuminant carrier with respect to a maximum extension of the respective illuminant carrier along the longitudinal axis of the illuminant carrier. Preferably, the end regions of the respective illuminant carrier extend over a maximum of 20%, preferably over a maximum of 10%, of the maximum extension of the respective illuminant carrier along the longitudinal axis of the respective illuminant carrier. Preferably, at least one LED lighting element is arranged in each end region of a illuminant carrier, in particular with respect to a maximum extension of the respective illuminant carrier. Preferably, an LED lighting element in one end region is spaced the same distance from the nearer end as an LED lighting element in the other end region is spaced from the correspondingly nearer end.In particular, all LED lighting elements of an LED lighting sub-assembly can be arranged in the end regions of the lighting source carrier, in particular with respect to a maximum extension of the respective lighting source carrier along the longitudinal axis of the lighting source carrier. In particular, the LED lighting elements of an LED lighting sub-assembly can be arranged at at least two different distances from one another along the installation axis, in particular along the longitudinal axis of the corresponding lighting source carrier, wherein the at least two distances can in particular be arranged alternately. Preferably, all LED lighting elements of an LED lighting sub-assembly are arranged on one, preferably largest, outer side of the corresponding lighting source carrier. Preferably, all LED lighting elements, in particular all geometric centers of the LED lighting elements, of an LED lighting sub-assembly are arranged in a line on the lighting source carrier.Preferably, the side of each illuminant carrier on which the LED lighting elements are arranged is designed as a flat surface. Preferably, all LED lighting elements of the LED lighting arrangement are designed identically, in particular shaped and / or dimensioned, in particular with regard to light generation. Alternatively, the LED lighting arrangement can have at least two different, in particular differently shaped and / or dimensioned, LED lighting elements. Preferably, all LED lighting elements of the LED lighting arrangement are designed to generate white light. Preferably, the LED lighting elements of an LED lighting sub-array are designed, in particular in a description via geometric optics, to generate light, in particular light rays, which is aligned in a same, in particular averaged, original light propagation direction.The primary optics unit is preferably formed at least largely, preferably entirely, from a plastic. The primary optics unit can be formed, at least in sections, as an optical element, such as in particular as a light guide, as a diffuser, as a lens, as a prism, as a diffractive optical element (DOE), as a holographic optical element (HOE), and / or can have a plurality of such optical elements, in particular in a microstructure, on one surface or multiple surfaces of the primary optics or primary optics subunit. The primary optics unit is preferably designed to deflect the light from the LED lighting elements, in particular to deflect the original light propagation direction by at least 10°, preferably by at least 20°, particularly preferably by at least 30°, particularly preferably towards the base section.The primary optics unit is preferably designed to deflect the light from the LED lighting elements, in particular to deflect the original light propagation direction by a maximum of 80°, preferably by a maximum of 70°, particularly preferably by a maximum of 60°, in particular to a primary optics propagation direction, particularly preferably towards the base section. The primary optics unit can be designed to deflect the light from the LED lighting elements, in particular to deflect the original light propagation direction by at least 40°, in particular by at least 40°, for example by at least 50°, particularly preferably towards the base section, in particular to a primary optics propagation direction. The primary optics unit is preferably arranged at least for the most part, particularly preferably completely, between the LED lighting elements and the optical cover, in particular in the housing cavity.The primary optics unit preferably comprises a primary optics subunit for each LED illuminant sub-array. Each primary optics subunit is preferably arranged, in particular radially, between an LED illuminant sub-array, preferably the LED lighting elements of an LED illuminant sub-array, and the optical cover, in particular in a cross-section perpendicular to the installation axis. Each primary optics subunit is preferably designed identically, in particular shaped and / or dimensioned. For example, at least one, in particular each, primary optics subunit is designed as a lampshade which at least partially surrounds, in particular, the LED lighting elements of an LED illuminant sub-array in a cross-section perpendicular to the installation axis, in particular on sides of the LED lighting elements facing away from the illuminant carrier.For example, at least one, in particular each, primary optics subunit is designed as a lamp shade, which, in particular, completely, in particular closed, surrounds the LED lighting elements of an LED lamp subassembly in a cross-section perpendicular to the installation axis, together with the lamp carrier. In principle, a respective lamp shade can comprise a diffuser material within its volume or be constructed from such a material for diffusely scattering the light entering the lamp shade material.The primary optics unit, in particular the at least one primary optics subunit, can, for example, be designed at least in sections, in particular completely, as an optical element, such as in particular as a light guide, as a diffuser, as a lens, as a prism, as a diffractive optical element (DOE), as a holographic optical element (HOE), or can have a plurality of such optical elements, in particular in a microstructure on one surface or multiple surfaces of the primary optics or primary optics subunit. Preferably, the primary optics unit, preferably each primary optics subunit, has a maximum extension along the installation axis which corresponds to at least 25%, preferably at least 50%, particularly preferably at least 75%, and very particularly preferably at least 90% of the maximum extension of the luminaire housing, in particular of the optical cover, along the installation axis.Preferably, the LED illuminant arrangement, preferably each LED illuminant sub-arrangement, has a maximum extension along the installation axis which corresponds to at least 25%, preferably at least 50%, particularly preferably at least 75%, and most particularly preferably at least 90% of the maximum extension of the luminaire housing, in particular the optical cover, along the installation axis. Preferably, the primary optics unit, in particular each primary optics sub-unit, is arranged closer to the base section and / or the column section than to the roof section. Preferably, the primary optics unit, in particular each primary optics sub-unit, is indirectly connected to the base section and / or the column section.

[0005] The inventive design of the LED lighting device makes it possible to achieve an advantageous LED distribution in the luminaire housing, which advantageously enables a variety of resource-saving configurations for predetermined light distribution functions. In particular, an advantageously cost-effective light distribution function can be achieved by LEDs arranged one above the other along the installation axis for illuminating a substrate in the close range below the luminaire head, wherein below here means in particular along the installation axis, starting from the roof section in the direction of the base section, behind the base section. In particular, the primary optics unit and / or the optical cover can advantageously achieve a simple implementation of glare protection, so that the LED lighting elements can be advantageously arranged, in particular with horizontal light propagation orientations.An advantageously low-glare light distribution function can be achieved, for example, for illuminating a sidewalk along a street. An advantageously energy-efficient lighting device can be achieved. In particular, the size of a light deflection angle can be advantageously reduced. In particular, an advantageous light emission direction of the LED lighting elements can be achieved. In particular, glare can be reduced.

[0006] It is further proposed that the primary optics unit be arranged at a distance from the optical cover. Preferably, all primary optics subunits are each arranged at a distance, in particular the same distance, from the optical cover, in particular from different sections of the optical cover. Preferably, the primary optics unit, in particular all primary optics subunits, are each arranged at a distance of at least 1 cm, preferably at least 2 cm, particularly preferably at least 3 cm, and most preferably at least 4 cm, from the optical cover, in particular in a direction perpendicular to the installation axis.Preferably, the primary optics unit, in particular all primary optics subunits, are each spaced apart from the optical cover by at least 1%, preferably at least 2%, particularly preferably at least 3%, and most particularly preferably at least 5% of a maximum extension of the primary optics unit along the installation axis, in particular in a direction perpendicular to the installation axis. This allows for an advantageous, particularly spatial, separation of the optical properties of the primary optics unit and the optical cover. In particular, an advantageous combination of the optical properties of the primary optics unit and the optical cover can be achieved.

[0007] It is further proposed that the LED lighting device have an optical connection unit which detachably connects the primary optical unit to the LED illuminant arrangement, in particular without the use of tools. The optical connection unit is preferably designed as a snap-in connection, a plug-in connection, a clip connection, and / or a screw connection. The optical connection unit is preferably arranged at least partially, in particular completely, on the illuminant arrangement, in particular on the LED illuminant sub-assemblies. In particular, the optical connection unit can be arranged at least partially, in particular completely, on the primary optical unit, in particular on the primary optical sub-units.Preferably, the optical connection unit has at least two, for example three or four, optical connection elements on each LED illuminant sub-assembly for connecting a primary optical sub-unit to the corresponding LED illuminant sub-assembly. Preferably, the optical connection unit has at least one optical connection element at each end of a maximum extension of the LED illuminant sub-assembly along the installation axis for connecting a primary optical sub-unit to the corresponding LED illuminant sub-assembly. Preferably, the optical connection unit has at least one optical connection element in a central region of the maximum extension of the LED illuminant sub-assembly along the installation axis for connecting a primary optical sub-unit to the corresponding LED illuminant sub-assembly.Preferably, a central region of an extension of an object is a region of the object which is formed around a midpoint of the corresponding extension of all sections of the object within a maximum of 25%, preferably a maximum of 10%, of the corresponding extension. The optical connection unit can have optical connection elements on the primary optical unit that correspond to the optical connection element on the LED illuminant sub-assembly. In particular, the same number of optical connection elements can be arranged on the at least one primary optical sub-unit as on the at least one LED illuminant sub-assembly. This can advantageously achieve rapid and / or uncomplicated replacement of the primary optical unit. In particular, advantageously rapid accessibility of the LED illuminant arrangement, for example for replacement, can be achieved.

[0008] Furthermore, it is proposed that the LED lighting device comprise a lamp connection unit which electrically and at least substantially immovably connects the lamp arrangement, in particular without tools, to the at least one lamp housing, in particular to the column section. The lamp connection unit is preferably designed as a snap-in connection, clip connection and / or plug connection. Alternatively or additionally, the lamp connection unit can be designed as a screw connection. The lamp connection unit preferably has at least one lamp connection element, in particular at least partially designed as a preferably electrical plug socket, in particular a socket.The illuminant connection unit preferably has at least one illuminant connection element, in particular the illuminant connection element designed at least partially as a plug socket, which is arranged on the base section, the column section and / or the roof section. Preferably, at least one illuminant connection element is arranged on at least one optical connection element, in particular in direct contact. Preferably, at least one illuminant connection element, in particular the at least one designed as a plug socket, is formed integrally with at least one optical connection element. The illuminant connection unit preferably has at least one illuminant connection element for each illuminant sub-unit, in particular at least partially designed as a, preferably electrical, plug socket.Preferably, all of the illuminant connecting elements, which are at least partially designed as plug sockets, preferably electrical ones, are arranged at a distance from one another on the base section, the column section, and / or the roof section. Preferably, all of the illuminant connecting elements, which are at least partially designed as plug sockets, preferably electrical ones, are arranged on the column section and at a distance from the roof section and / or the base section. Preferably, all of the illuminant connecting elements, which are at least partially designed as plug sockets, preferably electrical ones, are arranged on one section of the roof section or the base section and at a distance from the other two sections of the roof section, the column section, or the base section.At least two lamp connection elements, in particular at least partially designed as, preferably electrical, plug sockets, can be arranged facing away from one another when viewed parallel to the installation axis, in particular the longitudinal axis of the lamp arrangement. At least two lamp connection elements, in particular at least partially designed as, preferably electrical, plug sockets, can be arranged offset and / or angled from one another by an angle of at least 30°, for example 45°, in particular 90°, when viewed parallel to the installation axis, in particular the longitudinal axis of the lamp arrangement. An advantageously uncomplicated connection between the LED lamp arrangement and the luminaire housing can be achieved. In particular, an advantageously quick and / or low-labor replacement of the lamp arrangement, in particular the primary optics subunits, can be achieved.

[0009] As shown, a lamp connection unit can have a snap-in connection, a clip connection and / or a plug-in connection, e.g. comprising an electrical plug socket, in particular an electrical socket, which can be arranged on the base section or on the column section of the luminaire, into which a plug section arranged on the lamp support can be inserted for electrical contact and, if necessary, mechanical fastening of the associated lamp arrangement or lamp sub-arrangement to the luminaire. In this embodiment, a lamp connection unit can comprise the plug section arranged on the lamp support and an electrical plug socket arranged, for example, on the base section of the housing as connecting elements assigned to one another. It can be provided that a lamp arrangement ora lamp sub-assembly has an associated lamp carrier which comprises a plug section at one longitudinal end, with which the lamp carrier and thus the lamp assembly or lamp sub-assembly can be plugged into an associated plug socket or holder. In a particularly advantageous embodiment, it can be provided that the roof section of the luminaire housing is removable, e.g. unscrewed from the column section, so that the lamp assembly or lamp sub-assembly is accessible and can be removed from the associated plug socket or holder by applying a release force to the respective lamp carrier, which simplifies the replacement of the lamp assembly or lamp sub-assembly. Such a replacement can be carried out, for example, to replace a defective lamp or to set a different light distribution function of the luminaire.In a particularly expedient embodiment, it can be provided that the primary optics unit or primary optics subunit is attached to the housing separately from the illuminant arrangement or a illuminant subassembly, possibly in such a way that the primary optics unit or primary optics subunit does not have to be removed to replace a illuminant arrangement or a illuminant subassembly, which can facilitate maintenance. For example, it can be provided that the primary optics unit surrounds the illuminant arrangement, and the latter can be pulled out of the primary optics unit in the direction of the longitudinal axis.

[0010] It is further proposed that the LED illuminant arrangement comprise at least one illuminant carrier, in particular the one already mentioned, which has a maximum extension along the installation axis that measures at least 25% of the maximum extension of the optical cover along the installation axis and which can be releasably connected to the at least one primary optics subunit, in particular without tools. Preferably, each LED illuminant subassembly is partially formed by exactly one illuminant carrier, which has a maximum extension along the installation axis that measures at least 25% of the maximum extension of the optical cover along the installation axis and which can be releasably connected to the at least one primary optics subunit by the optics connection unit, in particular without tools. Preferably, the LED illuminant arrangement has a illuminant carrier for each LED illuminant subassembly or primary optics subunit.Preferably, the at least one illuminant carrier is configured to be connected to an electrical circuit via the illuminant connection unit and to supply the LED lighting elements with electrical energy. Preferably, the at least one illuminant carrier has a maximum extension along the installation axis that corresponds to up to a maximum of 20%, in particular up to a maximum of 10%, in particular up to a maximum of 5%, of the maximum extension of the primary optics unit, in particular of the at least one primary optics subunit, in particular measured with respect to the longer extension.Preferably, the at least one illuminant carrier has a maximum extension along the installation axis which is up to a maximum of 20%, in particular up to a maximum of 10%, in particular up to a maximum of 5%, smaller than the maximum extension of the primary optics unit, in particular of the at least one primary optics subunit, in particular measured with respect to the longer extension. Preferably, each illuminant carrier has a maximum extension along the installation axis which corresponds to at least 25%, preferably at least 50%, particularly preferably at least 75%, and very particularly preferably at least 90%, of the maximum extension of the luminaire housing, in particular of the optical cover, along the installation axis. An advantageously high utilization of the luminaire volume of the luminaire housing can be achieved.In particular, an advantageously cost-effective and / or simple design of the primary optics unit can be achieved, in particular by providing a larger volume within the luminaire housing for the primary optics unit, wherein in particular an advantageously homogeneous illumination of the optical cover is achieved.

[0011] Furthermore, it is proposed that the optical cover be at least partially configured as a secondary optical unit for deflecting the light generated by the LED lighting elements, in particular in the light propagation direction behind the primary optical unit. Preferably, the optical cover is configured to deflect the original light propagation direction or the primary optical propagation direction, in particular in the light propagation direction behind the primary optical unit, by at least 10°, preferably by at least 20°, particularly preferably by at least 30°, particularly preferably toward the base section.The optical cover is preferably designed to deflect the light of the primary optics unit, in particular to deflect the original light propagation direction or the primary optics propagation direction, in particular in the light propagation direction behind the primary optics unit, by a maximum of 80°, preferably by a maximum of 70°, particularly preferably by a maximum of 60°, particularly preferably towards the base section. The optical cover can be designed to deflect the original light propagation direction or the primary optics propagation direction, in particular in the light propagation direction behind the primary optics unit, in particular by at least 40°, in particular by at least 45°, for example by at least 50°, particularly preferably towards the base section. The primary optics unit and / or the optical cover are preferably designed together to deflect the light of the LED lighting elements to generate the light distribution function.This allows for a low-complexity deflection optic for the LED lighting elements. In particular, an existing external lamp design can be advantageously adopted.

[0012] It is further proposed that the primary optics unit comprise at least one primary optics subunit having at least two different primary optics regions configured to differently redirect the light generated by the LED lighting elements. Preferably, the at least one primary optics subunit has at least one primary optics region in which the primary optics subunit is at least partially formed by prisms, reflectors, shaders, lenses, DOEs, and / or HOEs. In particular, the primary optics unit, for example the at least one primary optics subunit, can comprise at least one optical element such as a prism, a reflector, a shader, a lens, a DOE, and / or a HOE.Preferably, the at least two different primary optics regions are configured to redirect the direction of light propagation from the LED lighting elements to different degrees, in particular by different angles, preferably in the direction of the base section. Preferably, the at least two different primary optics regions are arranged offset from one another along the installation axis, in particular a longitudinal axis of the primary optics subunit, in particular of the corresponding primary optics subunit.Preferably, a primary optics region of the at least two different primary optics regions arranged further away from the base section, in particular along the installation axis, is designed to deflect the light propagation direction of the light from the LED lighting elements less strongly, in particular by a smaller angle, preferably in the direction of the base section, than at least one respective primary optics region of the at least two different primary optics regions arranged less far away from the base section, in particular along the installation axis.Depending on the desired light distribution function and / or maximum glare level of the lighting device, a primary optics region of the at least two different primary optics regions arranged further away from the base section, in particular along the installation axis, can be designed to redirect the direction of light propagation of the light from the LED lighting elements more strongly, in particular by a larger angle, preferably in the direction of the base section, than at least one respective primary optics region of the at least two different primary optics regions arranged less far away from the base section, in particular along the installation axis. Advantageous adjustability of the light distribution function can be achieved.

[0013] It is further proposed that the at least one primary optics unit comprises at least one primary optics subunit which, when cut in a plane perpendicular to the installation axis, in particular in a plan view along the installation axis, has an at least substantially mirror-symmetrical outer contour, preferably with respect to an imaginary mirror plane spanned by the installation axis and a surface normal of a largest outer side of a lamp carrier of the lamp arrangement, on which the primary optics subunit is arranged. Preferably, the primary optics unit, in particular the at least one primary optics subunit, is designed as a flexible plate. In particular, the primary optics unit, in particular the at least one primary optics subunit, can be designed as a type of lampshade.Preferably, the primary optics unit, in particular the at least one primary optics subunit, is open on a side facing the illuminant carrier to introduce the light of the LED lighting elements into a space delimited by the primary optics unit, in particular by the at least one primary optics subunit. In the space delimited by the primary optics unit, in particular by the at least one primary optics subunit, and in particular by at least one illuminant carrier, optical elements, such as in particular at least one prism, at least one reflector, at least one shader, at least one lens, at least one DOE and / or at least one HOE, can be arranged, in particular in direct contact with the primary optics unit, in particular with the at least one primary optics subunit, in particular for a targeted formation of the light distribution function.The primary optics unit can in particular be formed at least partially as a coating, such as a structured PMMA coating, directly on the illuminant carrier. Preferably, the primary optics unit, in particular the at least one primary optics sub-unit, is cut in a plane perpendicular to the installation axis, in particular in a plan view along the installation axis, following an at least substantially mirror-symmetrical basic shape, preferably with respect to an imaginary mirror plane spanned by the installation axis and the surface normal of the largest outer side of the corresponding illuminant carrier of the illuminant arrangement on which the primary optics sub-unit is arranged. An advantageous symmetry in the deflection of the light can be achieved. In particular, an advantageously homogeneous light distribution function can be achieved.In particular, an advantageously stable and / or robust design / arrangement of the primary optics unit, in particular of the primary optics subunits, can be achieved. In particular, an advantageously easily reproducible light distribution function can be achieved.

[0014] It is further proposed that the at least one primary optics unit comprises at least one primary optics subunit which, when cut in the plane perpendicular to the installation axis, has an at least substantially circular, oval and / or crescent-shaped, in particular crescent-shaped, outer contour. Preferably, the primary optics unit, in particular the at least one primary optics subunit, is designed to follow an at least substantially circular, oval and / or crescent-shaped, in particular crescent-shaped, basic shape when cut in a plane perpendicular to the installation axis, in particular in a plan view along the installation axis. For example, an at least substantially circular shape can achieve an advantageously symmetrical light distribution curve with a main propagation direction predetermined by the LED lighting elements.For example, an at least substantially oval shape can achieve an advantageously symmetrical light distribution curve with a propagation direction that is more strongly deflected than the main propagation direction specified by the LED lighting elements. For example, an at least substantially crescent-shaped, in particular crescent-shaped, shape can achieve an advantageously symmetrical light distribution curve with a propagation direction that is more strongly directed backwards and / or laterally than the main propagation direction specified by the LED lighting elements.

[0015] It is further proposed that the LED illuminant arrangement comprise at least one further LED illuminant sub-arrangement having further LED lighting elements, and that the primary optics unit comprise at least one primary optics sub-unit which is detachably connected to the LED illuminant sub-arrangement, in particular without tools, and at least one further primary optics sub-unit which is detachably connected to the further LED illuminant sub-arrangement, in particular without tools. Preferably, the LED illuminant sub-arrangement and the further LED illuminant sub-arrangement are arranged diametrically opposite one another, in particular in the housing cavity. Preferably, the LED illuminant sub-arrangement and the further LED illuminant sub-arrangement are designed to generate light with opposite original light propagation directions.The LED illuminant arrangement can comprise a plurality, such as two, three, four, five, six, or the like, of further LED illuminant sub-assemblies, each of which has further LED lighting elements. The LED illuminant arrangement preferably has a maximum of four LED illuminant sub-assemblies. For example, the LED illuminant arrangement can have one LED illuminant sub-assembly, one further illuminant sub-assembly, a second further LED illuminant sub-assembly, and a third further LED illuminant sub-assembly. The primary optics unit can comprise a plurality, such as two, three, four, five, six, or the like, of further primary optics sub-units, each of which is detachably connected to one of the further LED illuminant sub-assemblies, in particular without tools. The primary optics unit preferably has a maximum of four primary optics sub-units.For example, the primary optics unit can comprise a primary optics subunit, a further primary optics subunit, a second further primary optics subunit, and a third further primary optics subunit. Advantageous emission of light from the luminaire housing into a 3D space can be achieved. In particular, emission of light into an advantageously large solid angle can be achieved in a simple manner, whereby, in particular, an advantageously homogeneous light intensity can be achieved.

[0016] It is further proposed that the at least one further primary optics subunit, when cut in a plane perpendicular to the installation axis, has an outer contour at least substantially identical to that of the at least one primary optics subunit. Preferably, the at least one further primary optics subunit, when cut in a plane perpendicular to the installation axis, in particular in a plan view along the installation axis, is designed to follow an at least substantially identical, in particular identically shaped and / or identically dimensioned, basic shape as that of the at least one primary optics subunit. “At least substantially identically shaped” objects should be understood to mean, in particular, objects which have a maximum deviation of 10%, preferably a maximum of 5%, between their respective volumes and whose outer surfaces, when hypothetically placed one inside the other, differ by a maximum of 20%, preferably a maximum of 10%, and particularly preferably a maximum of 5%."At least substantially equally dimensioned" objects are understood to mean, in particular, objects with a maximum deviation of 3%, preferably a maximum of 1%, between their respective volumes. This allows for an advantageously uniform light distribution curve in the solid angle around the lighting device.

[0017] It is further proposed that the at least one further primary optics subunit, cut in a plane perpendicular to the installation axis, has a differently shaped and / or dimensioned outer contour than the at least one primary optics subunit. Preferably, the at least one further primary optics subunit, cut in a plane perpendicular to the installation axis, in particular in a plan view along the installation axis, is designed to follow an at least substantially different, in particular differently shaped and / or differently dimensioned, basic shape than the at least one primary optics subunit. An advantageously adapted light distribution curve in the solid angle around the lighting device can be achieved.

[0018] Furthermore, it is proposed that the LED lighting elements of the at least one LED lighting sub-array are arranged with the same original light propagation direction, and that the LED lighting elements of the at least one further LED lighting sub-array are arranged with the same further original light propagation direction, which differs from the light propagation direction by at least 30°, preferably by at least 90°. Preferably, all, in particular the maximum four, LED lighting sub-arrays are arranged with averaged light propagation directions of the LED lighting elements arranged on the LED lighting sub-arrays, each angled by 90° to one another. Preferably, an averaged light propagation direction is a light direction viewed according to geometric optics, in particular in the ray model for a light source.Preferably, two directly adjacent LED illuminant sub-assemblies are arranged, in particular in the circumferential direction around the installation axis, each with average light propagation directions of the LED lighting elements arranged on the LED illuminant sub-assemblies angled from one another by at least 15°, preferably at least 30°, particularly preferably 45°, and very particularly preferably at least 60°. Preferably, two directly adjacent LED illuminant sub-assemblies are arranged, in particular in the circumferential direction around the installation axis, each with average light propagation directions of the LED lighting elements arranged on the LED illuminant sub-assemblies angled from one another by at least 65°, preferably at least 70°, particularly preferably 75°, and very particularly preferably at least 80°.Preferably, two directly adjacent LED illuminant sub-assemblies are arranged, in particular in the circumferential direction around the installation axis, with the average light propagation directions of the LED lighting elements arranged on the LED illuminant sub-assemblies each angled by a maximum of 180°, preferably a maximum of 120°, particularly preferably a maximum of 110°, and most particularly preferably at least 100°, relative to one another. An advantageously spatially symmetrical light distribution function can be achieved.

[0019] It is further proposed that the further LED illuminant subassembly be arranged along the installation axis at the same height as the LED illuminant subassembly. Preferably, the further LED illuminant subassembly, in particular a illuminant carrier on the further LED illuminant subassembly, is arranged completely at the same height along the installation axis as the LED illuminant subassembly, in particular as a illuminant carrier on the LED illuminant subassembly.Preferably, at least one, preferably both, end(s) of a maximum extension of the further LED illuminant sub-assembly, in particular of the illuminant carrier on the further LED illuminant sub-assembly, along the installation axis, in particular along the longitudinal axis of the further LED illuminant sub-assembly, is arranged at the same height, preferably along the installation axis, in particular on the longitudinal axis of the further LED illuminant sub-assembly, as at least one, preferably both, end(s) of a maximum extension of the LED illuminant sub-assembly, in particular of the illuminant carrier on the LED illuminant sub-assembly, along the installation axis, in particular along the longitudinal axis of the LED illuminant sub-assembly.Preferably, at least one center point of a maximum extension of the further LED illuminant sub-assembly, in particular of the illuminant carrier on the further LED illuminant sub-assembly, along the installation axis, in particular along the longitudinal axis of the further LED illuminant sub-assembly, is arranged at the same height, preferably along the installation axis, in particular on the longitudinal axis of the further LED illuminant sub-assembly, as a center point of a maximum extension of the LED illuminant sub-assembly, in particular of the illuminant carrier on the LED illuminant sub-assembly, along the installation axis, in particular along the longitudinal axis of the LED illuminant sub-assembly. An advantageous uniform light distribution function around the lighting device can be achieved.

[0020] Furthermore, it is proposed that the further LED illuminant sub-assembly be arranged offset from the LED illuminant sub-assembly along the installation axis. Preferably, at least one, in particular the further LED illuminant sub-assembly, is arranged at least partially, in particular completely, offset from the LED illuminant sub-assembly along the installation axis, in particular at least 25%, preferably at least 50%, for example 33%.Preferably, at least one, preferably both, end(s) of a maximum extension of the further LED illuminant sub-assembly, in particular of the illuminant carrier on the further LED illuminant sub-assembly, along the installation axis, in particular along the longitudinal axis of the further LED illuminant sub-assembly, is offset, preferably along the installation axis, in particular on the longitudinal axis of the further LED illuminant sub-assembly, to a corresponding, preferably both, end(s) of a maximum extension of the LED illuminant sub-assembly, in particular of the illuminant carrier on the LED illuminant sub-assembly, along the installation axis, in particular along the longitudinal axis of the LED illuminant sub-assembly.Preferably, at least one center point of a maximum extension of the further LED illuminant sub-assembly, in particular of the illuminant carrier on the further LED illuminant sub-assembly, is offset along the installation axis, in particular along the longitudinal axis of the further LED illuminant sub-assembly, preferably along the installation axis, in particular on the longitudinal axis of the further LED illuminant sub-assembly, from a center point of a maximum extension of the LED illuminant sub-assembly, in particular of the illuminant carrier on the LED illuminant sub-assembly, along the installation axis, in particular along the longitudinal axis of the LED illuminant sub-assembly. Preferably, the at least one LED illuminant sub-assembly is connected to the luminaire housing so as to be displaceable along the installation axis. An advantageously configurable light distribution function can be achieved.

[0021] It is further proposed that the LED lighting device comprise an external interface which is arranged on the at least one luminaire housing for connecting the at least one luminaire housing to a mounting unit. The external interface is preferably arranged on the base section. The external interface can be arranged on the roof section. The external interface is preferably designed to implement a screw connection. The external interface is preferably designed to form a connection between the luminaire housing and a mounting unit, such as a mast unit for supporting the luminaire housing from below, in particular with respect to a direction of gravity, or a suspension unit for supporting the luminaire housing from above, for supporting the luminaire housing from below.

[0022] Furthermore, an LED lighting system, in particular the one already mentioned, with an LED lighting device according to the invention is proposed.

[0023] The LED lighting system comprises a mast unit, in particular the one already mentioned, which is connected to the at least one luminaire housing and which is designed to position the luminaire housing on a base. Alternatively, the LED lighting system can have a suspension unit, in particular the one already mentioned. In particular, the LED lighting system comprises at least one mounting unit. The mounting unit can be designed as the mast unit or the suspension unit. Advantageous compatibility between the luminaire housing and the mounting unit can be achieved.

[0024] The LED lighting device and / or the LED lighting system according to the invention are not intended to be limited to the application and embodiment described above. In particular, the LED lighting device and / or the LED lighting system according to the invention can have a number of individual elements, components, and units that differs from the number stated herein in order to fulfill a functionality described herein. Furthermore, in the value ranges specified in this disclosure, values within the stated limits are also to be considered disclosed and can be used arbitrarily.

[0025] Further advantages will become apparent from the following description of the drawings. The drawings illustrate four exemplary embodiments of the invention. The drawings, the description, and the claims contain numerous features in combination. Those skilled in the art will also expediently consider the features individually and combine them into useful further combinations. Brief description of the drawings

[0026] They show: Fig. 1 shows an LED lighting system according to the invention with an LED lighting device according to the invention in a schematic representation, Fig. 2 shows a schematic representation of an LED illuminant arrangement of the LED lighting device according to the invention, Fig. 3 the LED illuminant arrangement of the LED lighting device according to the invention in a schematic representation, Fig. 4 the LED lighting device according to the invention in a schematic representation, Fig. 5 shows a further LED lighting device according to the invention in a schematic representation, Fig. 6 a second further LED lighting device according to the invention in a schematic representation, Fig. 7 a third further LED lighting device according to the invention in a schematic representation. Fig. 8 a fourth further LED lighting device according to the invention in a schematic representation. Description of the embodiments

[0027] Fig. 1 shows an LED lighting system 100a. The LED lighting system 100a comprises an LED lighting device 10a. The LED lighting device 10a is configured to generate a predetermined light distribution function. The LED lighting device 10a, in particular the LED lighting system 100a, is configured as an outdoor light. The LED lighting device 10a, in particular the LED lighting system 100a, is configured to be weatherproof. For example, the LED lighting device 10a is configured as a street light, in particular a street lamp.

[0028] The LED lighting device 10a comprises a lighting housing 12a. The LED lighting device 10a comprises an LED lighting arrangement 14a arranged in the lighting housing. The LED lighting arrangement 14a comprises two LED lighting sub-assemblies 16a, 16a'. The two LED lighting sub-assemblies 16a, 16a' each have a plurality of LED lighting elements 18a for generating light. The LED lighting device 10a comprises a primary optics unit 20a. The primary optics unit 20a is designed to redirect the light from the LED lighting elements 18a. The lighting housing 12a is designed to be closed except for manufacturing and / or assembly tolerances.

[0029] The luminaire housing 12a includes a roof section 22a. The luminaire housing 12a includes a base section 24a. The luminaire housing 12a includes a column section 26a. The column section 26a connects the roof section 22a to the base section 24a.

[0030] The luminaire housing 12a has an optical cover 28a arranged between the roof section 22a and the base section 24a. The optical cover 28a has a greater maximum extension 32a along a mounting axis 30a of the luminaire housing 12a than perpendicular to the mounting axis 30a. The primary optics unit 20a is arranged between the LED lighting elements 18a and the optical cover 28a.

[0031] The LED lighting system 100a comprises a mounting unit 102a. The mounting unit 102a is designed as a mast unit 104a, in particular as a mast or pole. The mast unit 104a is connected to the lighting housing 12a. The mast unit 104a is designed to mount the lighting housing 12a on a base.

[0032] The LED illuminant arrangement 14a has a maximum extension 34a along the installation axis 30a, which is at least 25% of the maximum extension 32a of the optical cover 28a along the installation axis 30a.

[0033] The installation axis 30a is aligned parallel to a longitudinal axis 36a, 38a, 40a of the luminaire housing 12a, the optical cover 28a, and the column section 26a. The installation axis 30a is parallel to a direction of a principal gravity acting on the LED lighting device 10a. The luminaire housing 12a is rotationally symmetrical to an axis of symmetry 42a of the luminaire housing 12a. The installation axis 30a is aligned parallel to the axis of symmetry 42a of the luminaire housing 12a (cf. Fig. 1 and Fig. 4).

[0034] The optical cover 28a is formed as a single-piece component in any cross-section perpendicular to the mounting axis 30a. The luminaire housing 12a is formed from a metal material, glass material, and / or a plastic. The roof section 22a and the base section 24a are formed from a metal material. The optical cover 28a is formed from a glass material. The base section 24a is formed from the same material as the roof section 22a.

[0035] The roof section 22a is connected to the column section 26a. The roof section 22a is arranged in direct contact with the column section 26a. The roof section 22a is connected to the optical cover 28a. The roof section 22a is arranged in direct contact with the optical cover 28a. The roof section 22a has a circular outer contour 42a when viewed along the installation axis 30a of the luminaire housing 12a.

[0036] The roof section 22a is shaped like a truncated geometric cone with a blunt tip. The blunt tip forms an end of the luminaire housing 12a facing away from the base section 24a along the installation axis 30a. The blunt tip is formed as a surface of the roof section 22a facing away from the optical cover 28a, which surface has a surface normal 44a aligned parallel to the installation axis 30a. The blunt tip has a maximum extension 46a perpendicular to the installation axis 30a, which is smaller than a maximum extension 48a of the optical cover 28a perpendicular to the installation axis 30a. The roof section 22a is formed with a roof slope of 10° to 20°.

[0037] The optical cover 28a is hollow-cylindrical in shape with two base sides and one shell side. The optical cover 28a is transparent to the light generated by the LED lighting elements. The roof section 22a and the base section 24a are arranged on opposite base sides of the optical cover 28a and are connected to the optical cover 28a.

[0038] The column section 26a is designed as a cylindrical column, in particular with two base sides and one shell side. The roof section 22a and the base section 24a are arranged on opposite base sides of the column section 26a and are connected to the column section 26a. The column section 26a has a maximum extension 50a parallel to the installation axis 30a that is the same as the optical cover 28a. A longitudinal axis 52a of the column section 26a is aligned parallel to the installation axis 30a. In a cross-section perpendicular to the installation axis 30a, the base section 24a has the same outer contour as the optical cover 28a and the roof section 22a. The base section 24a is formed by a base subsection 54a and a further base subsection 56a.The base subsection 54a has an identical maximum extension perpendicular to the installation axis 30a over the entire extension of the base subsection 54a along the installation axis 30a. The further base subsection 56a, when viewed perpendicular to the installation axis 30a, has a conical shape with a blunt tip. A maximum extension of the further base subsection 56a perpendicular to the installation axis 30a is equal to a maximum extension of the base subsection 54a perpendicular to the installation axis 30a.

[0039] The luminaire housing 12a, in particular the optical cover 28a, defines a housing cavity 58a in which the primary optics unit 20a and the LED illuminant assembly 14a are arranged. The LED illuminant assembly 14a is arranged entirely within the luminaire housing 12a, in particular the housing cavity 58a, when viewed in a cross-section perpendicular to the installation axis 30a.

[0040] The LED illuminant arrangement 14a comprises two LED illuminant sub-assemblies 16a, 16a'. Each LED illuminant sub-assembly 16a, 16a' is formed by several, here, for example, ten, LED illuminant elements 60a for generating light and a illuminant carrier 62a on which the respective LED illuminant elements 60a are arranged (see. Fig. 2 and Fig. 3). Each lamp carrier 62a is strip-shaped, in particular shaped like an elongated plate. Each lamp carrier 62a is made of a CEM3 printed circuit board material.

[0041] Each LED illuminant subassembly 16a, 16a' has a plurality of LED illuminant elements 60a, for example, ten. All LED illuminant elements 60a of an LED illuminant subassembly 16a, 16a' are arranged equidistantly from one another on the illuminant carrier 62a, in particular along the mounting axis 30a and along a longitudinal axis 64a of the illuminant carrier 62a. All LED illuminant elements 60a are each configured as a mid-power LED luminaire.

[0042] All lamp carriers 62a are identically shaped and dimensioned. Each lamp carrier 62a has two end regions 66a, 66a' at opposite ends of the respective lamp carrier 62a with respect to a maximum extension of the respective lamp carrier 62a along the longitudinal axis 64a of the lamp carrier 62a. The end regions 66a, 66a' of the respective lamp carriers 62a extend over a maximum of 10% of the maximum extension of the respective lamp carrier 62a along the longitudinal axis 64a of the respective lamp carrier 62a, starting from the respective end of the lamp carrier 62a. An LED lighting element 60a is arranged in each end region 66a, 66a' of the lamp carrier 62a. An LED lighting element 60a in one end region 66a is spaced equally far from the nearer end as an LED lighting element 60a in the other end region 66a' is spaced from the correspondingly nearer end.For better clarity, the reference number 60a is assigned only once.

[0043] All LED lighting elements 60a of an LED lighting sub-array 16a, 16a' are arranged on a largest outer side of the corresponding lighting element carrier 62a. All geometric centers of the LED lighting elements 60a of an LED lighting sub-array 16a, 16a' are arranged in a line 68a on the lighting element carrier 62a. The side of each lighting element carrier 62a on which the LED lighting elements 60a are arranged is formed as a flat surface. All LED lighting elements 60a of the LED lighting arrangement 14a are identically shaped and dimensioned and designed to generate the same light.

[0044] All LED lighting elements 60a of the LED lighting arrangement 14a are designed to generate white light. The LED lighting elements 60a of an LED lighting sub-array 16a, 16a' are designed, particularly in a description via geometric optics, to generate light, particularly light rays, which are aligned in a same, particularly averaged, original light propagation direction 70a, 70a', particularly in a cross-section perpendicular to the installation axis 30a (cf. Fig. 3). Preferably, the averaged original light propagation direction 70a, 70a' of the LED lighting elements 60a of an LED lighting sub-array 16a, 16a' is oriented perpendicular to the largest outer side of the corresponding lighting carrier 62a.

[0045] The primary optics unit 20a is formed entirely from a plastic material. The primary optics unit 20a is designed to redirect the light from the LED lighting elements 60a. The primary optics unit 20a is designed to redirect the original light propagation direction 70a, 70a' by approximately 22° toward the base section (see FIG. Fig. 3), in particular to a primary optics propagation direction 71a.

[0046] The primary optics unit 20a is arranged in the housing cavity 58a completely between the LED lighting elements 60a and the optical cover 28a, in particular in the radial direction along a shortest distance between the LED lighting elements 60a and the optical cover 28a.

[0047] The primary optics unit 20a comprises a primary optics subunit 21a, 21a' for each LED illuminant subassembly 16a, 16a'. Each primary optics subunit 21a, 21a' is arranged, in particular, radially between the LED illuminant elements 60a of an LED illuminant subassembly 16a, 16a' and the optical cover 28a, in particular in a cross-section perpendicular to the installation axis 30a along a shortest distance between the LED illuminant elements 60a and the optical cover 28a.

[0048] Each primary optics subunit 21a, 21a' is identically shaped and dimensioned. For example, each primary optics subunit 21a, 21a' is designed as a lampshade, in particular comprising a diffuser material. In particular, a primary optics subunit 21a, 21a' surrounds the LED lighting elements 60a of an LED lighting sub-array 16a, 16a' in a cross-section perpendicular to the installation axis 30a by more than 75%, in particular on the sides of the LED lighting elements 60a facing away from the lighting element carrier 62a. In particular, a primary optics subunit 21a, 21a' surrounds the LED lighting elements 60a of an LED lighting sub-array 16a, 16a' in a cross-section perpendicular to the installation axis 30a, together with the lighting element carrier 62a, in a completely enclosed manner.

[0049] The primary optics subunits 21a, 21a' are designed, for example, in sections, as optical elements, here in particular as prisms 72a and as shaders 74a or reflectors (cf. Fig. 3). Each primary optics subunit 21a, 21a' has a maximum extension 76a along the installation axis 30a, which corresponds to at least 90% of the maximum extension 50a of the optical cover 28a along the installation axis 30a.

[0050] The LED illuminant assembly 14a, preferably each LED illuminant subassembly 16a, 16a', has a maximum extension 78a along the installation axis 30a, which measures at least 90% of the maximum extension 50a of the optical cover 28a along the installation axis 30a. Each illuminant carrier 62a has a maximum extension 80a along the installation axis 30a, which corresponds to at least 90% of the maximum extension 50a of the optical cover 28a along the installation axis 30a.

[0051] The primary optics unit 20a, in particular each primary optics subunit 21a, 21a', is arranged closer to the base section 24a and / or the column section 26a than to the roof section 22a. The primary optics unit 20a, in particular each primary optics subunit 21a, 21a', is indirectly connected to the column section 26a. The primary optics unit 20a is arranged at a distance from the optical cover 28a. All primary optics subunits 21a, 21a' are each arranged at a distance, in particular the same distance, from the optical cover 28a, in particular from different sections of the optical cover 28a. The primary optics unit 20a, in particular all primary optics subunits 21a, 21a', are each arranged at a distance of at least 1 cm from the optical cover 28a, in particular at a distance perpendicular to the installation axis 30a in the radial direction.The primary optics unit 20a, in particular all primary optics sub-units 21a, 21a' are each arranged at a distance, in particular in a direction perpendicular to the installation axis 30a, from the optical cover 28a by at least 5% of a maximum extension 76a of the primary optics unit 20a along the installation axis 30a.

[0052] The LED lighting device 10a has an optical connection unit 82a. The optical connection unit 82a connects the primary optical unit 20a to the LED illuminant assembly 14a in a tool-free, detachable manner. The optical connection unit 82a is designed as a mechanical clip connection. The optical connection unit 82a is arranged entirely on the LED illuminant subassemblies 16a, 16a'. The optical connection unit 82a has two optical connection elements 84a on each LED illuminant subassembly 16a, 16a' for connecting a primary optical subunit 21a, 21a' to the corresponding LED illuminant subassembly 16a, 16a'.

[0053] The optical connection unit 82a has at each end of a maximum extension of the LED illuminant sub-assembly 16a, 16a' along the installation axis 30a at least one optical connection element 84a for connecting a primary optical sub-unit 21a, 21a' to the corresponding LED illuminant sub-assembly 16a, 16a'.

[0054] The LED lighting device 10a has a lamp connection unit 86a. The lamp connection unit 86a electrically connects the LED lamp assembly 14a to the lamp housing 12a, in particular to the column section 26a, in a tool-free, detachable manner and immovably, except for manufacturing and / or assembly tolerances.

[0055] The lamp connection unit 86a is designed as a mechanical clip connection and an electrical and mechanical plug connection (cf. Fig. 2 and Fig. 3). The lamp connection unit 86a has a lamp connection element 88a, partially configured as an electrical plug socket, in particular a socket. The lamp connection unit 86a has three further lamp connection elements 90a, which are configured as a purely mechanical connection.

[0056] The illuminant connection element 88a, which is at least partially designed as a plug socket, is arranged on the column section 26a and, in particular, is arranged at a distance from the base section 24a and the roof section 22a. The illuminant connection element 88a, which is at least partially designed as a plug socket, is arranged in direct contact with an optical connection element 84a. The illuminant connection element 88a, which is at least partially designed as a plug socket, is formed integrally with an optical connection element 84a.

[0057] The LED illuminant assembly 14a includes the illuminant carrier 62a. The illuminant carrier 62a has a maximum extension 80a along the installation axis 30a, which measures at least 90% of the maximum extension 50a of the optical cover 28a along the installation axis 30a. All illuminant carriers 62a of the LED illuminant assembly 14a are of the same shape and dimension. The illuminant carrier 62a is detachably connected to a primary optics subunit 21a, 21a' without the need for tools. Each LED illuminant sub-assembly 16a, 16a' is partially formed by exactly one illuminant carrier 62a, which has a maximum extension 80a along the installation axis 30a, which measures at least 90% of the maximum extension of the optical cover 28a along the installation axis 30a, and which can be detachably connected to a primary optics sub-unit 21a, 21a' in a tool-free manner by the optics connection unit 82a.

[0058] The LED illuminant arrangement 14a has a illuminant carrier 62a for each LED illuminant sub-array 16a, 16a' or primary optics sub-unit 21a, 21a'. The illuminant carrier 62a is designed to be connected to an electrical circuit via the illuminant connection unit 82a and to supply the LED lighting elements 60a with electrical energy. The illuminant carrier 62a has a maximum extension 80a along the installation axis 30a, which corresponds to the maximum extension 76a of the primary optics sub-units 21a, 21a', with a maximum deviation of 10%.

[0059] The optical cover 28a is designed as a secondary optical unit for deflecting the light generated by the LED lighting elements 60a, in particular in the light propagation direction behind the primary optical unit 20a. The optical cover 28a is designed to deflect the primary optical propagation direction 71a, in particular in the light propagation direction behind the primary optical unit 20a, by at least 10° toward the base section.

[0060] The primary optics unit 20a comprises two primary optics subunits 21a, 21a', each having two different primary optics regions 92a, 92a', which are designed to differently redirect the light generated by the LED lighting elements 60a. The primary optics subunit 21a, 21a' has a primary optics region 92a', in which the primary optics subunit 21a, 21a' is partially formed by prisms 72a. The primary optics subunit 21a, 21a' has a primary optics region 92a, in which the primary optics subunit 21a, 21a' is partially formed by shaders 74a. The two different primary optics regions 92a, 92a' are designed to redirect the light propagation direction 70a, 70a' of the light from the LED lighting elements 60a to different degrees, in particular by different angles, in the direction of the base section.

[0061] The two different primary optics regions 92a, 92a' are arranged offset from one another along the installation axis 30a, in particular of the corresponding primary optics subunit 21a, 21a'. A primary optics region 92a' of the two different primary optics regions 92a, 92a' arranged further away from the base section 24a, in particular along the installation axis 30a, is designed to deflect the light propagation direction 70a, 70a' of the light from the LED lighting elements 60a less strongly, in particular by a smaller angle, in the direction of the base section 24a, than a respective primary optics region 92a of the two different primary optics regions 92a, 92a' arranged less far away from the base section 24a, in particular along the installation axis 30a.

[0062] The two primary optics subunits 21a, 21a' each have, in a plane cut perpendicular to the installation axis 30a, in particular in a plan view along the installation axis 30a, a mirror-symmetrical outer contour 94a with respect to an imaginary mirror plane 96a spanned by the installation axis 30a and a surface normal of a largest outer side of a lamp carrier 62a of the lamp arrangement, on which the respective primary optics subunit 21a, 21a' is arranged. The primary optics subunits 21a, 21a' are each designed, for example, as a flexible plate. The primary optics subunits 21a, 21a' are each designed, for example, as a type of lampshade.The primary optics subunits 21a, 21a' are open on a side facing the illuminant carrier 62a to introduce the light of the LED lighting elements 60a into a space enclosed by the primary optics unit 20a, in particular by the at least one primary optics subunit 21a, 21a'.

[0063] The primary optics unit 20a, in particular the individual primary optics sub-units 21a, 21a', are cut in a plane perpendicular to the installation axis 30a, in particular in a plan view along the installation axis 30a, following a mirror-symmetrical basic shape, in particular with respect to the imaginary mirror plane 96a spanned by the installation axis 30a and the surface normal of the largest outer side of the corresponding illuminant carrier 62a of the LED illuminant arrangement 14a, on which the primary optics sub-unit 21a, 21a' is arranged.

[0064] The primary optics subunits 21a, 21a' each have a crescent-shaped, in particular crescent-shaped, outer contour cut in the plane perpendicular to the installation axis 30a (cf. Fig. 4). The primary optics subunits 21a, 21a' are formed in a plane perpendicular to the installation axis 30a, in particular in a plan view along the installation axis 30a, following an at least substantially circular, oval and / or crescent-shaped, in particular crescent-shaped, basic shape.

[0065] The LED illuminant assembly 14a has a further LED illuminant subassembly 16a, 16a', which has further LED illuminant elements 60a. The primary optics subunit 21a, 21a' is detachably connected to the LED illuminant subassembly 16a, 16a' without the need for tools. The further primary optics subunit 21a, 21a' is detachably connected to the further LED illuminant subassembly 16a, 16a' without the need for tools. The LED illuminant subassembly 16a, 16a' and the further LED illuminant subassembly 16a, 16a' are arranged diametrically opposite one another, in particular in the housing cavity 58a, in particular when viewed parallel to the installation axis.

[0066] The LED illuminant sub-assembly 16a, 16a' and the further LED illuminant sub-assembly 16a, 16a' are designed to generate light with opposite original light propagation directions 70a, 70a'. The LED illuminant assembly 14a preferably has a maximum of four LED illuminant sub-assemblies. The further primary optics sub-unit 21a, 21a' has, in a plane perpendicular to the installation axis 30a, the same outer contour as the primary optics sub-unit 21a, 21a'. The further primary optics sub-unit 21a, 21a' is cut in a plane perpendicular to the installation axis 30a, in particular in a plan view along the installation axis 30a, following the same, in particular identically shaped and / or identically dimensioned, basic shape as the primary optics sub-unit 21a, 21a'.

[0067] The LED lighting elements 60a of the LED lighting sub-array 16a, 16a' are all arranged with the same light propagation direction 70a. The further LED lighting elements 60a of the further LED lighting sub-array 16a, 16a' are all arranged with the same further light propagation direction 70a'. The light propagation direction 70a differs from the further light propagation direction 70a' by 180°. The averaged light propagation direction 70a, 70a' is a light direction when viewed according to geometric optics, in particular in the ray model for a light source. The two LED illuminant sub-assemblies 16, 16a', which are directly adjacent in the circumferential direction around the installation axis 30a, are arranged with averaged light propagation directions 70a, 70a', of the LED lighting elements 60a arranged on the LED illuminant sub-assemblies 16a, 16a', each angled by at least 60° to one another.

[0068] The further LED lamp sub-assembly 16a, 16a' is arranged along the installation axis 30a at the same height as the LED lamp sub-assembly 16a, 16a'. The further LED lamp sub-assembly 16, 16a', in particular the lamp carriers 62a on the further LED lamp sub-assembly 16, 16a', are arranged along the installation axis 30a entirely at the same height as the LED lamp sub-assembly 16, 16a', in particular as the lamp carrier 62a on the LED lamp sub-assembly 16a, 16a'.

[0069] Both ends of a maximum extension 78a, 80a of the further LED illuminant sub-assembly 16, 16a', in particular of the illuminant carrier 62a on the further LED illuminant sub-assembly 16a, 16a', are arranged along the installation axis 30a, in particular along the longitudinal axis of the further LED illuminant sub-assembly 16a, 16a', at the same height along the installation axis 30a, in particular on the longitudinal axis of the further LED illuminant sub-assembly 16a, 16a', as both ends of a maximum extension 78a, 80a of the LED illuminant sub-assembly 16a, 16a', in particular of the illuminant carrier 62a on the LED illuminant sub-assembly 16a, 16a', along the installation axis 30a, in particular along the longitudinal axis of the LED illuminant sub-assembly 16a, 16a'.

[0070] A center point 98a of a maximum extension 78a, 80a of the further LED illuminant sub-assembly 16a, 16a', in particular of the illuminant carrier 62a on the further LED illuminant sub-assembly 16a, 16a', is arranged along the installation axis 30a, in particular along the longitudinal axis of the further LED illuminant sub-assembly 16a, 16a', at the same height, in particular along the installation axis 30a, in particular on the longitudinal axis of the further LED illuminant sub-assembly 16a, 16a', as a center point 98a of a maximum extension of the LED illuminant sub-assembly 16a, 16a', in particular of the illuminant carrier 62a on the LED illuminant sub-assembly 16a, 16a', along the installation axis 30a, in particular along the longitudinal axis of the LED illuminant sub-assembly 16a, 16a'.

[0071] The further LED illuminant sub-assembly 16a, 16a' is arranged offset from the LED illuminant sub-assembly 16a, 16a' along the installation axis 30a. Preferably, at least one, in particular the further LED illuminant sub-assembly 16a, 16a' is arranged at least partially, in particular completely, offset from the LED illuminant sub-assembly 16a, 16a' along the installation axis 30a, in particular at least 25%, preferably at least 50%, for example 33%.

[0072] The LED lighting device 10a includes an external interface 99a. The external interface 99a is arranged on the lighting housing 12a for connecting the lighting housing 12a to the mounting unit 102a. The external interface 99a is arranged on the base section 24a. The external interface 99a is configured to implement a screw connection. The external interface 99a is configured to form a connection between the lighting housing 12a and the mast unit 104a for supporting the lighting housing 12a from below, particularly with respect to a gravitational direction.

[0073] In the Fig. 5 to 8, further embodiments of the invention are shown. The following descriptions and the drawings are essentially limited to the differences between the embodiments, whereby with regard to components with the same designation, in particular with regard to components with the same reference numerals, reference is also made to the drawings and / or the description of the other embodiments, in particular to the Fig. 1 to 4. To distinguish the embodiments, the letter a is added to the reference numerals of the embodiment in the Fig. 1 to 4. In the examples of the Fig. In numbers 5 to 8 the letter a is replaced by the letters b to e.

[0074] Fig. 5 shows an alternative lighting system 100b with an alternative lighting device 10b.

[0075] The primary optics unit 20b has two further primary optics subunits 21b, 21b', each of which is detachably connected to one of the further LED lamp subassemblies 16b, 16b' without the need for tools. Two lamp connection elements 88b, partially designed as electrical plug sockets, are arranged parallel to the mounting axis 30b, in particular to the longitudinal axis of the lamp assembly 14b, facing away from each other by 90°.

[0076] The two primary optics subunits 21b, 21b' have an oval outer contour 94b when cut in a plane perpendicular to the installation axis 30b. The two primary optics subunits 21b, 21b' are each cut in a plane perpendicular to the installation axis 30b, in particular in a plan view along the installation axis 30b, following an oval basic shape.

[0077] The LED lighting elements 60b of the LED lighting sub-array 16b, 16b' are all arranged with the same light propagation direction 70b. The further LED lighting elements 60b of the further LED lighting sub-array 16b, 16b' are all arranged with the same further light propagation direction 70b'. The light propagation direction 70b differs from the further light propagation direction 70b' by 90°.

[0078] The illuminant arrangement 14b forms a two-sided configuration angled by 90°.

[0079] Fig. 6 shows an alternative lighting system 100c with an alternative lighting device 10c.

[0080] The primary optics unit 20c has three primary optics subunits 21c, 21c', 21c'' and three illuminant subassemblies 16c, 16c', 16c''. The three primary optics subunits 21c, 21c', 21c'' are each detachably connected to one of the LED illuminant subassemblies 16c, 16c', 16c'' without the need for tools.

[0081] Two primary optics subunits 21c, 21c' have a circular outer contour 94c when cut in the plane perpendicular to the installation axis 30c. Two primary optics subunits 21c, 21c' are formed following a circular basic shape when cut in a plane perpendicular to the installation axis 30c, in particular in a plan view along the installation axis 30c.

[0082] A primary optics subunit 21c'' has an oval outer contour 94c cut in the plane perpendicular to the installation axis 30c. A primary optics subunit 21c'' is formed following a circular basic shape cut in a plane perpendicular to the installation axis 30c, in particular in a plan view along the installation axis 30c.

[0083] The LED lighting elements 60c of each LED light source sub-array 16c, 16c', 16c'' are all arranged with the same light propagation direction 70c, 70c', 70c''. The light emission direction 70c'' of the LED light source sub-array 16c'' with the oval outer contour is angled 90° relative to the light emission directions 70c, 70c' of the light source sub-arrays 16c, 16c' with the circular outer contours. The two light source sub-arrays 16c, 16c' are arranged with opposite light emission directions 70c, 70c'.

[0084] The luminous element arrangement 14c forms a three-sided configuration.

[0085] The primary optics subunit 21c'' has a differently shaped and dimensioned outer contour 94c than the primary optics subunits 21c, 21c', when cut in a plane perpendicular to the installation axis 30c. The primary optics subunit 21c'' is cut in a plane perpendicular to the installation axis 30c, in particular in a plan view along the installation axis 30c, following a differently shaped and dimensioned basic shape than the primary optics subunits 21c, 21c'.

[0086] Fig. 7 shows an alternative lighting system 100d with an alternative lighting device 10d.

[0087] The primary optics unit 20d has four primary optics subunits 21d, 21d', 21d'', 21d''' and four illuminant subassemblies 16d, 16d', 16d'', 16d'''. The four primary optics subunits 21d, 21d', 21d'', 21d''' are each detachably connected to one of the LED illuminant subassemblies 16d, 16d', 16d'', 16d''' in a tool-free manner.

[0088] All primary optics subunits 21d, 21d', 21d'', 21d''' have a circular outer contour 94d when cut in the plane perpendicular to the installation axis 30d. All primary optics subunits 21d, 21d', 21d'', 21d''' are formed following a circular basic shape when cut in a plane perpendicular to the installation axis 30d, in particular in a plan view along the installation axis 30d.

[0089] The LED lighting elements 60d of each LED lighting sub-array 16d, 16d', 16d'', 16d''' are all arranged with the same light propagation direction 70d, 70d', 70d'', 70d'''. The light emission direction 70d'' of all LED lighting sub-arrays 16d, 16d', 16d'', 16d''' are angled by 90° relative to the light emission directions 70d, 70d', 70d'', 70d''' of the circumferentially closest adjacent lighting sub-arrays 16d, 16d', 16d'', 16d'''.

[0090] The luminous element arrangement 14d forms a four-sided configuration.

[0091] The primary optics subunit 21d'' has, in a plane perpendicular to the installation axis 30d, a differently shaped and dimensioned outer contour 94d than the primary optics subunits 21d, 21d'. The primary optics subunit 21d'' is cut in a plane perpendicular to the installation axis 30d, in particular in a plan view along the installation axis 30d, following a differently shaped and dimensioned basic shape than the primary optics subunits 21d, 21d'.

[0092] The LED illuminant sub-assemblies 16d, 16d''' are arranged offset from the LED illuminant sub-assemblies 16d', 16d'' along the installation axis 30d. Opposing LED illuminant sub-assemblies 16d, 16d', 16d'', 16d''' are arranged offset from the other LED illuminant sub-assemblies 16d, 16d', 16d'', 16d''' along the installation axis 30d, in particular at the same distance. Opposing LED illuminant sub-assemblies 16d, 16d', 16d'', 16d''' are arranged at the same height along the installation axis 30d.

[0093] Fig. 8 shows an alternative lighting system 100e with an alternative lighting device 10e.

[0094] The primary optics unit 20e has a primary optics sub-unit 21e and a luminous means sub-assembly 16e.

[0095] The luminous element arrangement 14e forms a four-sided configuration. List of reference symbols 10 LED lighting devices 12 luminaire housings 14 LED lamp arrangement 16 LED lamp sub-assembly 20 Primary optics unit 21 Primary optics subunit 22 roof section 24 Base section 26 Column section 28 Cover 30 mounting axis 32 Extension 34 Extension 36 Longitudinal axis 38 Longitudinal axis 40 Longitudinal axis 41 Outer contour 42 axis of symmetry 44 surface normals 46 Extension 48 Extension 50 extension 52 Longitudinal axis 54 Basic Subsection 56 Basic Subsection 58 Housing cavity 60 LED lighting elements 62 lamp holders 64 Longitudinal axis 66 End area 68 Line 70 Direction of light propagation 71 Primary optics propagation direction 72 Prism 74 shaders 76 Extension 78 Extension 80 extension 82 Optical connection unit 84 Optical connecting element 86 Lamp connection unit 88 Lamp connection element 90 Lamp connection element 92 Primary optics area 94 Outer contour 96 mirror plane 98 Center 99 External interface 100 LED lighting system 102 Installation unit 104 Mast Unit

Claims

[1] LED lighting device (10a-e), in particular LED lighting system (100a-e), for generating a predetermined light distribution function comprising: - at least one luminaire housing (12a-e) having a roof section (22a-e), a base section, a column section (26a-e) connecting the roof section (22a-e) to the base section (24a-e), and an optical cover arranged between the roof section (22a-e) and the base section (24a-e), which has a greater maximum extension (32a-e) along a mounting axis (30a-e) of the luminaire housing (12a-e) than perpendicular to the mounting axis (30a-e), - an LED illuminant arrangement (14a-e) arranged in the luminaire housing (12a-e), which has at least one LED illuminant sub-arrangement (16a-e, 16a'-d') comprising a plurality of LED illuminant elements (60a-e) for generating light, and - a primary optical unit (20a-e) for deflecting the light from the LED lighting elements (60a-e), which is arranged at least in sections between the LED lighting elements (60a-e) and the optical cover, characterized by that the LED illuminant arrangement (14a-e) has a maximum extension (78a-e) along the installation axis (30a-e) which measures at least 25% of the maximum extension (32a-e) of the optical cover along the installation axis (30a-e). [2] LED lighting device (10a-e) according to claim 1, characterized by that the primary optical unit (20a-e) is arranged at a distance from the optical cover. [3] LED lighting device (10a-e) according to claim 1 or 2, characterized by an optical connection unit (82a-e) which detachably connects the primary optical unit (20a-e), in particular without tools, to the LED illuminant arrangement (14a-e). [4] LED lighting device (10a-e) according to one of the preceding claims, characterized bya lamp connection unit (86a-e) which electrically and at least substantially immovably connects the LED lamp arrangement (14a-e), in particular without tools, to the at least one lamp housing (12a-e), in particular to the column section (26a-e). [5] LED lighting device (10a-e) according to one of the preceding claims, characterized by that the LED illuminant arrangement (14a-e) comprises at least one illuminant carrier (62a-e) which has a maximum extension (80a-e) along the installation axis (30a-e) which measures at least 25% of the maximum extension (32a-e) of the optical cover along the installation axis (30a-e), and which can be detachably connected to the primary optics subunit (21a-e, 21a'-e'), in particular without tools. [6] LED lighting device (10a-e) according to one of the preceding claims, characterized bythat the optical cover (28a-e) is at least partially designed as a secondary optical unit for deflecting the light generated by the LED lighting elements (60a-e), in particular in the light propagation direction (70a-e, 70a'-70d', 70c''-70d'', 70d''') behind the primary optical unit (20a-20e). [7] LED lighting device (10a-e) according to one of the preceding claims, characterized by that the primary optics unit (20a-e) comprises at least one primary optics sub-unit (21a-e, 21a'-e', 21c''-d'', 21d''') which has at least two different primary optics regions (92a-e, 92a'-e') which are designed to deflect the light generated by the LED lighting elements (60a-e) differently. [8] LED lighting device (10a-e) according to one of the preceding claims, characterized byin that the at least one primary optics unit (20a-e) comprises at least one primary optics sub-unit (21a-e, 21a'-e', 21c''-d'', 21d''') which, when cut in a plane perpendicular to the installation axis (30a-e), has an at least substantially mirror-symmetrical outer contour (94a-e), preferably with respect to an imaginary mirror plane (96a-e) spanned by the installation axis (30a-e) and a surface normal of a largest outer side of a lamp carrier (62a-e) of the lamp arrangement (14a-e), on which the primary optics sub-unit (21a-e, 21a'-e', 21c''-d'', 21d''') is arranged. [9] LED lighting device (10a-e) according to one of the preceding claims, characterized bythat the at least one primary optics unit (20a-e) comprises at least one primary optics sub-unit (21a-e, 21a'-e', 21c''-d'', 21d''') which, when cut in the plane perpendicular to the installation axis (30a-e), has an at least substantially circular, oval and / or crescent-shaped, in particular crescent-shaped, outer contour (94a-e). [10] LED lighting device (10a-d) according to one of the preceding claims, characterized bythat the LED illuminant arrangement (14a-d) comprises at least one further LED illuminant sub-arrangement (16a-d, 16a'-d', 16c''-d'', 16d'''), which has further LED illuminant elements (60a-d), and the primary optics unit (20a-d) comprises at least one primary optics sub-unit (21a-d, 21a'-d', 21c''-d'', 21d'''), which is detachably connected to the LED illuminant sub-arrangement (16a-d, 16a'-d', 16c''-d'', 16d'''), in particular without tools, and at least one further primary optics sub-unit (21a-d, 21a'-d', 21c''-d'', 21d'''), which is connected to the further LED illuminant sub-arrangement (16a-d, 16a'-d', 16c''-d'', 16d'''), in particular tool-free and detachably connected. [11] LED lighting device (10a-d) according to claim 10, characterized bythat the at least one further primary optics sub-unit (21a-d, 21a'-d', 21c''-d'', 21d''') has, when cut in a plane perpendicular to the installation axis (30a-d), the same outer contour (94a-d) as the at least one primary optics sub-unit 21a-d, 21a'-d', 21c''-d'', 21d'''). [12] LED lighting device (10c) at least according to claim 10, characterized by that the at least one further primary optics sub-unit (21c, 21c', 21c'') has a differently shaped and / or dimensioned outer contour than the at least one primary optics sub-unit (21c, 21c', 21c'') when cut in a plane perpendicular to the installation axis (30c). [13] LED lighting device (10a-d) at least according to claim 10, characterized bythat the LED lighting elements (60a-d) of the at least one LED lighting means sub-array (16a-d, 16a'-d', 16c''-d'', 16d''') are arranged with an identical light propagation direction (70a-e, 70a'-d', 70c''-d'', 70d''') and the and the further LED lighting elements (60a-d) of the at least one further LED lighting means sub-array (16a-d, 16a'-d', 16c''-d'', 16d''') are arranged with an identical further light propagation direction (70a-e, 70a'-d', 70c''-d'', 70d''') which differs from the light propagation direction (70a-e, 70a'-d', 70c''-d'', 70d''') by at least 30°, preferably by at least 90°. [14] LED lighting device (10a-d) at least according to claim 10, characterized by that the further LED lamp sub-assembly (16a-d, 16a'-d', 16c''-d'', 16d''') is arranged along the installation axis (30a-d) at the same height as the LED lamp sub-assembly (16a-d, 16a'-d', 16c''-d'', 16d'''). [15] LED lighting device (10d) at least according to claim 10, characterized by that the further LED illuminant sub-assembly (16d, 16d', 16d'', 16d''') is arranged offset from the LED illuminant sub-assembly (16d, 16d', 16d'', 16d''') along the installation axis (30d). [16] LED lighting device (10a-e) according to one of the preceding claims, characterized by an external interface (99a-e) which is arranged on the at least one luminaire housing (12a-e) for connecting the at least one luminaire housing (12a-e) to a mounting unit (102a-e). [17] LED lighting system (100a-e) with an LED lighting device (10a-e) according to one of the preceding claims, characterized by a mast unit (104a-e) which is connected to the at least one luminaire housing (12a-e) and which is designed to set up the luminaire housing (12a-e) on a base.

Images