ES2608385T3 - Luminous body of a lamp, especially a street lamp, and lamp with at least one luminous body - Google Patents

Abstract

Luminous body (1) of a lamp, especially of a street lamp, comprising - at least one reflector unit (20-27) with a first reflector segment (200) comprising a series of reflective surfaces, and with a second reflector segment (201) comprising a series of reflective surfaces, both reflector segments (200, 201) being configured and arranged so as to limit each other at least by sections directly along a joint rim (202), - at least a first LED light element or a first group of LED light elements that is arranged inside the first reflector segment (200), - at least a second LED light element or a second group of LED light elements that is arranged inside the second reflector segment (201), - a first faceted reflector element (50) with a series of rows arranged one above the other of reflection facets (500) arranged next to each other which is mounted at one end of the first reflector segment (200) opposite the flange (202), as well as - a second facet reflector element (51) with a series of rows arranged one above the other of reflection facets (510 ) arranged next to each other which is mounted at one end of the second reflector segment (201) opposite the flange (202), the reflection facets (500, 510) of the facet reflectors (50, 51) being configured and arranged , so that they can reflect a part of the light emitted during operation by the first and second LED light elements or by the first group and the second group of LED light elements, so that these are directed to different target surfaces that they only overlap geometrically in part, and the reflection facets (500, 510) are arranged at an angle with respect to the LED light element or the group of LED light elements of the respective reflector segment (200, 201), the angle being or of inclination of the reflection facets (500, 510) in the row in which the reflection facets (500, 510) are arranged next to each other, identical or at least practically identical, characterized in that the reflection facets ( 500, 510) of adjacent rows of each of the facet reflector elements (50, 51) have tilt angles that increase from the inside out.

Description

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DESCRIPTION

Luminous body of a lamp, especially a street lamp, and lamp with at least one luminous body

The invention relates to a luminous body of a lamp, especially a street lamp, which comprises

- at least one reflector unit with a first reflector segment comprising a series of reflective surfaces and with a second reflector segment comprising a series of reflective surfaces, both reflector segments being configured and arranged so as to limit each other, at least in sections, directly along a joint flange,

- at least a first LED light element or a first group of LED light elements that are arranged inside the first reflector segment,

- at least a second LED light element or a second group of LED light elements that are arranged inside the second reflector segment,

- a first facet reflector element with a series of rows arranged on top of each other of reflection facets arranged next to each other that is mounted at one end of the first reflector segment opposite the flange, as well as

- a second facet reflector element with a series of rows arranged on top of each other of reflection facets arranged next to each other that is mounted at one end of the second reflector segment opposite the flange. On the other hand, the present invention relates to a lamp, especially a street lamp, with a housing in which at least one luminous body is housed, configuring and arranging the reflection facets of the facet reflectors, so that they can reflect a part of the light emitted during operation by the first and the second LED luminous element or by the first group and the second group of LED luminous elements, so that these are directed to different target surfaces that only geometrically overlap in part, and the reflection facets being disposed inclined with respect to the LED light element or the group of LED light elements of the respective reflector segment, the angle of inclination of the reflection facets being in the row in which the reflection facets are have one next to another, identical or at least practically identical.

Conventional light elements such as halogen lamps or incandescent lamps, which have so far been used for multiple lighting purposes, have been replaced more and more in recent years by light-emitting diodes (LEDs). The use of light-emitting diodes as a light element offers numerous advantages. The light-emitting diodes are especially characterized by a long service life with reduced current consumption and, at the same time, high power.

In recent years, technological developments have also been promoted for the use of light-emitting diodes as a particularly durable and economical light element in luminous bodies that can be used especially in street lamps. In the already known solutions, light-emitting diodes are often used to which a lens is respectively assigned as an optical element, in order to properly concentrate the light emitted by the light-emitting diodes. However, it has been shown that in this case the glare is relatively high, so that the use of such luminous bodies in street lamps, by means of which streets or roads on the periphery can be illuminated, for example, It entails the corresponding inconveniences.

To remedy these problems, a luminous body configured without lenses is proposed in EP 2 177 818 A1, which is specially designed for mounting on a street lamp. The luminous body has at least one reflector assigned to at least one LED luminous element. The reflector is capable during the operation of the light unit to reflect on the reflector surfaces at least a part of the light emitted by the at least one LED light element and emit it out of the lighting body. In this case, the reflector is configured so that during operation of the light unit it can maintain a fundamentally homogeneous surface illumination of the surroundings of the light unit. In this luminous body, LED luminous elements are preferably used as LED luminous elements which have several LEDs and which are preferably configured as LED Multi Chip on board luminous elements.

A luminous body of the type mentioned at the beginning is known, for example, from EP 2 360 427 A2. This luminous body has a tubular reflector and serves to illuminate a surface, which extends longitudinally, such as a street section, uniformly and with high efficiency.

The present invention is based on the task of creating a luminous body of a lamp, especially a street lamp, which is carried out in a compact manner and which also has a high luminous efficiency, especially a wide light distribution with high efficiency. . Another task of the present invention is to make available a lamp, especially a street lamp, of the type mentioned at the beginning that has a high light output, especially a wide light distribution with high efficiency. The solution of this task is provided by a luminous body of the type mentioned at the beginning with the features of claim 1.

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With regard to the lamp, this task is solved thanks to a lamp of the type mentioned at the beginning with the features of claim 8. The subclaims refer to advantageous improvements of the invention.

A luminous body according to the invention also presents the characteristics known by the state of the art according to which the reflection facets of the facet reflectors are configured and arranged so that they can reflect a part of the light emitted during operation by the first and the second LED light element or by the first group and the second group of LED light elements, so that these are directed to different target surfaces that only partially overlap geometrically. In this way, the possibility of maintaining a relatively wide light distribution on the surface is created, by directing the light reflected by the facet reflectors not only to a single target surface in geometrically small comparison and, consequently, reduces the amplitude of light, but to different target surfaces that overlap only in part. The luminous body according to the invention which is suitable especially for use in a street lamp, therefore allows a very high luminous range. The use of the facet reflector elements advantageously allows a compact structure of the luminous body. The percentage of the light reflected by the facet reflector elements of that reflector segment within which the at least one LED luminous element is disposed and the facet reflector element directly assigned thereto, is preferably from 30% to a 40%, especially approximately 35% of the primary light emitted by the LED light elements. The percentage of light that exits directly from the reflector segments (i.e., without reflections) is preferably from 50% to 60%, especially about 55% of all primary light emitted by the LED light elements. Preferably, several reflector units can be arranged next to each other in a lamp housing along the longitudinal direction of the housing and form a reflector.

On the other hand, the luminous body also presents the characteristics known by the state of the art according to which the reflection facets are arranged inclined with respect to the LED luminous element or to the group of LED luminous elements of the respective reflector segment, being the angle of inclination of the reflection facets in the row in which the reflection facets are arranged next to each other, identical or at least practically identical. Preferably the reflection surfaces of adjacent reflection facets are configured in a planar manner (as flat surfaces of grade 1) and at an angle to each other. In this way the effects of glare can be advantageously reduced.

According to the invention, the reflection facets of adjacent rows of each of the face reflector elements are provided to have inclination angles that widen from the inside out. Therefore, the reflection facets of the inner row have the smallest angle of inclination and the reflection facets of the outer row have the largest angle of inclination (referred to the emission surface (s) of the light element LED or group of LED light elements). Thus it is possible to significantly increase the area of the target surfaces that geometrically overlap only partly in the environment to be illuminated.

In order to increase the reflection performance of the facet reflector elements it is proposed in a variant of particularly preferred embodiment that the reflection facets of the facet reflector elements have a surface of intense brightness.

In a particularly preferred embodiment variant, it is possible to provide that the first reflector segment and the second reflector segment form between 130 ° and 150 ° in the area of the flange, especially an angle of approximately 140 °. In this way it is possible to advantageously create a redproco glare limit for the opposite and adjacent reflector segments. In this case, a very low percentage (preferably <5%, at least even better) of the primary light emitted by the LED luminous elements of the reflector segments in the flange area of a beam is relatively relatively reflected. Base reflection surface of the reflector segment in question and leaves the luminous body as reflected light. The primary rays that extend in the direction of the base reflection surface with even greater emission angles (in relation to a normal surface of the respective LED luminous element) cannot leave the luminous body without reflection on one of the reflective surfaces and, therefore, they do not contribute to a significant glare. Because the reflector units of the reflector unit form an angle of between 130 ° and 150 ° between them in the area of the flange, especially an angle of approximately 140 °, a dazzling limit is advantageously available effective.

In a preferred embodiment variant there is the possibility that the reflector segments are fundamentally molded as a blade.

In a particularly advantageous embodiment variant, it is envisioned that all reflective surfaces of the reflector segments are configured in a planar manner (ie, as grade 1 surfaces). After numerous tests with free-form surfaces configured in different ways, the use of planar reflective surfaces has proved to be frankly advantageous to avoid the effects of glare. On the contrary, at certain viewing angles, parabolic or concave surfaces always involve, as a rule, a focus on specific viewing angles and in the least favorable case a very large increase in the luminous density of the luminous body that can be observed. The projection of large "spiral images" of LED luminous elements with divergent or planar reflective surfaces eliminates this effect. However, it has been shown that convexly molded reflective surfaces prevent a sufficient concentration of light for the necessary radii of action especially in the case of street lamps.

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For these reasons, the reflection surfaces of the reflector facets are also made in a planar manner and do not present any curve or similar.

In a particularly convenient variant, there is the possibility that at least some, preferably all the reflection surfaces of the reflector segments are configured with a matte finish. It has been shown that a preferably complete matting of the reflection surfaces of the reflector segments leads to comparatively soft shades in the light distribution of the light rays reflected on these surfaces.

In a particularly preferred embodiment, the LED luminous elements can be configured as LED Multi Chip on board luminous elements. The LED Multi Chip on board luminous elements have, unlike LED Single Chip technology, several emitting chips that share a joint phosphor conversion coating. Since a large part of the heat generation occurs during the conversion into phosphorus, here the heat generated can be eliminated much better through a widened surface than in the case of the Single Chip LED technology. While in a single chip LED the emitter has a size of approximately 1 mm2-2 mm2 in the majority of cases, the LED Multi Chip on board luminous elements can perfectly present a square centimeter of emitting phosphor surface. Certainly, larger emission surfaces do not allow small optical projections and, therefore, are not suitable for applications that require a very high light focus. This is also not necessary in street lighting devices in which the presented aqm light body can preferably be used. Unlike the Single Chip technology, the LED Multi Chip on board luminous elements offer decisive advantages for the use in street lighting. In this regard, the following advantages that cannot be achieved with Single Chip technology must be mentioned:

- a lower luminous density can additionally support the glare limit necessary for the operation of a street lamp in which the luminous body is used according to the invention (the lower luminous density as a consequence of the large size of the phosphor surface puts provision of an intrinsic glare limit),

- it is possible to maintain a uniform (homogeneous) light distribution in the surroundings,

- a large surface heat dissipation is possible, so that the useful life of LED Multi Chip on board light elements can be increased,

- The assembly is very simple,

- a series and parallel connection of many LED chips is possible, so that in case of failure of different LED chips, the LED Multi Chip on Board light element continues to illuminate. Another advantage of such a luminous body is that the heat dissipation of the Multi Chip on Board LED chips can be carried out directly through the reflector segments or the lamp housing, so that it is not No additional cooling body is necessary that especially increases the mass of the luminous body.

In a particularly advantageous embodiment variant, it is proposed that the luminous body be a set of retroactive modification elements or an exchange unit for a lamp or be part of a set of retroactive modification elements of this type or of an exchange unit for a lamp, especially for a street lamp. It has been shown that the lighting properties that can be achieved with the luminous body presented here have an advantage, especially in street lamps.

A lamp according to the invention is characterized according to claim 8 in that the luminous body is made according to one of claims 1 to 7. The lamp according to the invention is characterized by a high luminous efficiency, especially a wide light distribution with a high efficiency, as well as by a compact constructive form.

Other features and advantages of the present invention are clearly explained below by means of the following description of preferred embodiments with reference to the attached figures. It looks in the

Figure 1 a perspective view of a luminous body of a lamp, especially of a street lamp, which is performed according to an example of preferred embodiment of the present invention,

Figure 2 a top view of a reflector of the light body according to Figure 1,

Figure 3 a side view of the reflector according to Figure 2,

Figure 4 a section along a line A-A according to figure 3,

Figure 5 a simulation of the ray path of a plurality of primary rays that are reflected in a facet reflector element of a reflector segment,

Figure 6 a simulation of the ray path of a plurality of primary rays that undergo multiple reflections in the reflector segment of the light body,

Figure 7 a simulation of the trajectory of the rays of a plurality of primary rays that are reflected in the area of a joint flange of two reflector segments.

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Referring to Figures 1 to 4, the basic structure of a luminous body 1 is explained in more detail in the first place, which is especially suitable for mounting on a street lamp.

The luminous body 1 has a reflector 2 that can be used in the assembly in a first housing part 3 of a housing of a lamp, especially a street lamp, and which can be fixed in the first housing part 3 with the aid of appropriate fasteners. The lamp housing also has a second piece of transparent housing that is mounted on the first housing piece 3, however not yet explicitly represented for reasons of simplification. The reflector 2 has a series of reflector units 20-27 that are arranged next to each other in a first direction corresponding to the longitudinal direction of the luminous body 1.

Each of these, in this exemplary embodiment in total, eight reflector units 20-27 is configured in two pieces and presents a first reflector segment 200 and a second reflector segment 201 symmetrical to the first reflector segment 200 which are configured in a single piece and with several edges and that are molded fundamentally in the form of a shovel. Further on, the blade-like shape of the reflector segments 200, 201 will be discussed in greater detail. The reflector segments 200, 201 are joined together with the aid of suitable fasteners. The reflector segments 200, 201 are preferably made of aluminum, especially by bending sheet metal. Alternatively, there is also the possibility that two reflector segments 200, 201 opposite each other form a one-piece unit.

As can be seen especially in Figure 4, the two reflector segments 200, 201 of each of the reflector units 20-27 form between each other in the area of a flange 202 which extends in the longitudinal direction of the mounting state of the luminous body 1, an angle at about 140 °. In general, angle a is preferably chosen, so that it is between 130 ° and 150 °.

Starting from the flange 202 in which the two reflector segments 200, 201 meet and collide with each other, each of the reflector segments 200, 201 has a flat reflection base surface 203, 204 of oblique development leading to in an area of fixation 205, 206 which develops obliquely in the opposite direction and, consequently, angled in front of the assigned reflection base surface 203, 204. Starting from the flange 202, the flat reflection base surfaces 203, 204 narrow in the direction of the corresponding fixing zones 205, 206. Each fixing area 205, 206 has a recess not provided with a reference in which, in this embodiment, respectively, two LED Multi Chip on Board 40, 41 light elements are arranged respectively. In principle there is also the possibility of equipping each reflector segment 200, 201 with only one LED Multi Chip on Board 40, 41 or with more than two LED Multi Chip on Board 40, 41. Both LED Multi Chip on Board 40 LED elements that are arranged in the inside the first reflector segment 200, in this case they form a first group of LED Multi Chip on Board 40 and the two LED Multi Chip on Board 41 that are arranged inside the second reflector segment 201 form, by therefore, a second group of LED elements Multi Chip on Board 41. The flat reflection base surfaces 203, 204 and the fixing areas 205, 206 of the corresponding reflector segment 200, 201 f they form between them an angle> 90 °, preferably an angle between 110 ° and 120 °.

Thanks to the 1 aqrn luminous body presented, LED Multi Chip on Board luminous elements (abbreviated: mCoB LED luminous elements) are used as a luminous element, it is possible to achieve especially high service performance. The LED Multi Chip on Board 40, 41 luminous elements have, unlike the LED Single Chip technology, several emitting chips that share a joint phosphor conversion layer. Since a large part of the heat generation occurs during the conversion into phosphorus, here it is possible to dissipate much more heat generated through a widened surface than in the case of the Single Chip LED technology. Whereas in a Single Chip LED the transmitter has a size of approximately 1 mm2-2 mm2 in the majority of cases, the LED Multi Chip on Board 40, 41 can still have a square centimeter of emitting phosphor surface . Certainly, the larger emission surfaces do not allow small optical projections and, therefore, do not suit those applications where a very high light focus is required. This is also not necessary in the case of street lighting devices in which the luminous body 1 presented here can preferably be used. Unlike the Single Chip technology, the LED Multi Chip on Board 40, 41 luminous elements offer decisive advantages for use in street lighting. In this regard, the following advantages that cannot be obtained with the Single Chip technology must be mentioned:

- a lower luminous density can additionally support the glare limit necessary for the operation of a street lamp in which the luminous body 1 is used according to the invention (the lower luminous density as a consequence of the large phosphor surface makes available a intrinsic glare limit),

- it is possible to maintain a uniform (homogeneous) light distribution in the surroundings,

- a large surface heat dissipation is possible, so that the life of LED Multi Chip on Board 40, 41 light elements can be increased,

- The assembly is very simple,

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- a series and parallel connection of many LED chips is possible, so that in case of failure of different LED chips, the LED Multi Chip on Board 40, 41 continues to illuminate.

Through the reflector segments 200, 201 made of aluminum it is possible to advantageously carry out an effective heat dissipation of the heat generated during the operation of the LED Multi Chip on Board 40, 41.

Each of the reflector segments 200, 201 is laterally limited by a first reflector side wall with two reflection surfaces 209, 210 and a second opposite reflector side wall also with two reflection surfaces 211,212. The reflection surfaces 209, 210, 211, 212 of the reflector side walls form with the base reflection surface 203, 204 of the light segment in question 200, 201 respectively an angle> 90 °. One of the reflection surfaces 210, 212 of each of the side reflector walls is edged in front of the other reflection surface 209, 211 and flows into the fixing area 205, 206 of the reflector segment 200, 201 in question. The reflection base surfaces 203, 204, the reflector side walls which in this case are respectively composed of two reflection surfaces 209, 210, 211, 212, as well as the fixing areas 205, 206 define the blade shape of the segment of reflector 200, 201 already mentioned at the beginning.

In this exemplary embodiment, the reflection base surfaces 203, 204 and the reflection surfaces 209, 210, 211, 212 of the reflector side walls of the reflector segments 200, 201 are made with a matte finish. By virtue of the percentages of rather diffuse reflection light, relatively smooth transitions are achieved in the distribution of the reflected light on the reflection base surfaces 203, 204 and the reflection surfaces 209, 210, 211,212 of the reflector side walls .

In the area of an outer end of the fixing zones 205, 206 of each reflector segment 200, 201 there is respectively a facet reflector element 50, 51. Each of the facet reflector elements 50, 51 has a series of rows arranged in superimposed form of reflection facets 500, 510, arranged next to each other and preferably molded as a prism, with flat reflection surfaces. The flat reflection surfaces of the reflection facets 500, 510 are made highly reflective (of intense brightness), in order to increase the degree of reflection and the luminous action radius of the luminous body 1. Therefore, the reflector elements of facets 50, 51 extend away by sections through the light cones of the primary light 400 emitted by the light elements iEd Multi Chip on Board 40, 41.

The reflection surfaces of the facet reflector elements 50, 51 in each of the rows are made in a flat manner and are layered between each other and, in this case, are configured and arranged, so that the reflection facets 500, 510 may reflect at least a portion of the primary light 400 emitted directly by the LED Multi Chip on Board 40, 41, so that the light can exit the luminous body 1 to the surroundings without further reflections as indirect light 400 '. This situation is represented in Figure 5 by means of the reflector segment 200.

In order to conserve the widest possible distribution of rays in an area to be illuminated, the adjacent rows of reflection facets 500, 510 present, as can be seen in Figure 5, different angles of inclination (referring to the (s) surface (s) of emission of the LED elements Multi Chip on Board 40, 41). Seen from within the respective reflector segment 200, 201 outwards, the reflection facets 500, 510 of the lower row have the flattest angle of inclination. On the contrary, the rows of reflection facets 500, 510 arranged above turn more and more inwards and, therefore, have an angle of inclination that always bends more from the inside out. By virtue of this configuration of the reflection facets 500, 510 of the facet reflector elements 50, 51 it is achieved that the light 400 'emitted by the LED Multi Chip on Board 40, 41 and reflected by the reflector elements of facets 50, 51 do not go to the same target surface of the environment to be illuminated. Rather, a partial gradual overlapping of different target surfaces is achieved in which the primary light 400 emitted by the LED Multi Chip on Board 40, 41 is reflected. This measure provides an increase in the radius of light and a distribution of distribution. wide light

The percentage of the light 400 'emitted by the facet reflector elements 50, 51 of that reflector segment 200, 201 within which the LED Multi Chip on Board 40, 41 and the facet reflector element 50 are arranged , 51 directly assigned to these, is normally 30% to 40%, especially approximately 35% of the primary light 400 emitted by the Multi Chip LED on Board 40, 41. The percentage of the light that It comes directly from the reflector segments 200, 201 (i.e., without reflections) is usually 50% to 60%, especially about 55% of the primary light 400 emitted.

Figure 6 shows a simulation of the reflections of a plurality of primary rays 400 emitted by the LED Multi Chip on Board 40 and which, in this case, affect the facet reflector element 51 of the opposite reflector segment 201, so that they are reflected by it. The partial rays 400 '' reflected in this way, whose percentage is normally less than 10% of all primary light 400, are partly reflected several times on the base reflection surfaces 203, 204 and / or on the reflection surfaces 209 , 210, 211, 212 of the reflector side walls of both reflector segments 200, 201 and / or in the facet reflector element 50 of the reflector segment 200 within which the LED Multi Chip on Board 40 luminous elements are arranged that emit primary light 400. Therefore, this percentage of light 400 '' reflected several times is not directed

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specifically to the target surface to illuminate in the environment. However, by virtue of the special configuration of the reflector units 20-27 this percentage is relatively small.

Referring to Figure 7, it can be clearly seen that a very low percentage (preferably <5%, even less, in the best case) of the primary light 400 emitted by the Multi Chip on Board 40 LED elements of the first segment of reflector 200 is reflected relatively broadly in the area of the flange 202 of the base reflection surface 203 of the reflector segment 200 in question and leaves the luminous body 1 as a reflected percentage 400 '' '. Therefore, the primary rays 400 that widen in the direction of the base reflection surface 203 with even greater emission angles (referred to the normal surface of the Multi Chip on Board 40 LED elements) cannot leave without reflection in the Reflection base surface 203 of the luminous body 1 and, therefore, do not contribute to glare. Thanks to the fact that the reflector segments 200, 201 of each of the reflector units 20-27 form between each other in the area of the flange 202 an angle a between 130 ° and 150 °, especially an angle of approximately 140 °, makes an effective glare limit advantageously available.

The base reflection surfaces 203, 204 and the reflection surfaces 209, 210, 211, 212 of the reflector side walls of both reflector segments 200, 201 are in this case configured as planar surfaces (flat surfaces). The reflection facets 500, 510 of the facet reflector elements 50, 51 are also made in a planar manner. After numerous tests with free form surfaces of different configurations it has been shown that the use of reflective planar surfaces is really advantageous to avoid glare effects. On the contrary, at certain viewing angles, parabolic or concave surfaces always involve, as a rule, an approach and in the least favorable case a very large increase in the luminous density of the luminous body 1 that can be observed. The projection of large "spiral images" of LED Multi Chip on Board 40, 41 luminous elements with divergent or planar reflective surfaces eliminates this effect. In addition, it has been shown that convexly molded reflective surfaces prevent a sufficient concentration of light for the necessary radii of action especially in the case of street lamps.

Claims (8)

5 10 fifteen twenty 25 30 35 40 Four. Five fifty 1. Luminous body (1) of a lamp, especially a street lamp, comprising - at least one reflector unit (20-27) with a first reflector segment (200) comprising a series of reflective surfaces, and with a second reflector segment (201) comprising a series of reflective surfaces, being configured and arranged both reflector segments (200, 201) so as to limit each other at least by sections directly along a joint flange (202), - at least a first LED light element or a first group of LED light elements that are arranged inside the first reflector segment (200), - at least a second LED light element or a second group of LED light elements that are arranged inside the second reflector segment (201), - a first facet reflector element (50) with a series of rows arranged on top of each other of reflection facets (500) arranged next to each other that is mounted at one end of the first reflector segment (200) opposite the flange (202), as well as - a second facet reflector element (51) with a series of rows arranged on top of each other of reflection facets (510) arranged next to each other that is mounted at one end of the second reflector segment (201) opposite the flange (202), configuring and arranging the reflection facets (500, 510) of the facet reflectors (50, 51), so that they can reflect a part of the light emitted during operation by the first and second LED light element or by the first group and the second group of LED luminous elements, so that these are directed to different target surfaces that only overlap geometrically in part, and the reflection facets (500, 510) being arranged inclined with respect to the LED luminous element or the group of LED luminous elements of the respective reflector segment (200, 201), the angle of inclination of the reflection facets (500, 510) being in the row in which the reflection facets (500, 510) are arranged together to others, identical or at least practically identical, characterized in that the reflection facets (500, 510) of adjacent rows of each of the facet reflector elements (50, 51) have angles of inclination that increase from the inside out. 2. Luminous body (1) according to claim 1, characterized in that the reflection facets (500, 510) of the facet reflector elements (50, 51) have a surface of intense brightness. 3. Luminous body (1) according to one of claims 1 or 2, characterized in that the first reflector segment (200) and the second reflector segment (201) form between each other in the area of the flange (202) an angle to between 130 ° and 150 °, especially an angle at about 140 °. 4. Luminous body (1) according to one of claims 1 to 3, characterized in that the reflector segments (200, 201) of the reflector (2) are fundamentally molded into a blade. 5. Luminous body (1) according to one of claims 1 to 4, characterized in that all the reflective surfaces of the reflector segments (200, 201) are configured flat. 6. Luminous body (1) according to one of claims 1 to 5, characterized in that at least some reflection surfaces of the reflector segments (200, 201), preferably all, are configured with a matte finish. 7. Luminous body (1) according to one of claims 1 to 6, characterized in that the LED luminous elements are configured as LED Multi Chip on Board luminous elements (40, 41). 8. Lamp, especially street lamp, with a housing inside which at least one luminous body (1) is housed, characterized in that the luminous body (1) is made according to one of claims 1 to 7.