Lighting systems and lighting devices

Abstract

A lighting system and lighting device, in which the inner side of the first light receiving element of the first light part includes at least two pairs of light receiving surfaces arranged opposite to each other in the first direction and the second direction respectively, the first LED light source is arranged in the third direction and the light emitting surface is surrounded by the two pairs of light receiving surfaces; the second LED light source of the second light part is arranged in the second direction and outside the first light receiving element, and the extension line of the central axis of the light emitting surface of the second LED light source intersects with the central axis of the light emitting surface of the first LED light source to form an angle of 20° to 60°; the inner side of the second light receiving element includes at least one main light receiving surface and a pair of auxiliary light receiving surfaces arranged opposite to each other in the first direction, the light emitting surface of the second LED light source faces the main light receiving surface, and the free end of the main light receiving surface allows part of the direct light of the second LED light source to pass through, and the part of the direct light intersects with the second direction to form an angle greater than 0°. The lighting system has uniform illumination, and the light fully utilizes the irradiation area, providing energy-saving, healthy and comfortable lighting.

Description

Technical Field

[0001] The present invention relates to the technical field of optical lighting, and in particular to a lighting system and a lighting device. Background Art

[0002] With the development of science and technology, the existing road lighting lamps have been updated to LED street lamps. Compared with traditional street lamps, LED street lamps not only have the characteristics of good color and long life, but more importantly, they are more energy-efficient than traditional street lamps.

[0003] Most of the existing LED street lights on the market use lens light distribution for optical light distribution, but lens light distribution has an obvious defect, that is, a considerable part of the light cannot be well directed to the road surface where people need it. The actual utilization efficiency of light is low and it is easy to cause light pollution.

[0004] The use of reflectors for street lamps can overcome the defects of lens-based street lamps, but they are rarely used in practice. Almost no mainstream LED street lamps use reflectors for street lamps. This is mainly because the existing reflector design technology cannot meet the requirements of street lamp lighting standards and the optical design is difficult. The various invented reflector-based street lamps have obvious defects and have no obvious advantages over lens-based street lamps.

[0005] In addition, the prior art CN202020737042.4 discloses an LED street lamp, including a supporting lamp pole, an LED lamp head and a fill light lamp head. The LED lamp head and the fill light lamp head are fixedly connected to the supporting lamp pole. The light source of the fill light lamp head is a halogen bulb or a xenon bulb and is located below the LED lamp head; the LED lamp head includes an outer shell, a transparent lampshade and an LED light source. Preferably, the LED lamp head and the fill light lamp head are at an obtuse angle and there is no obstruction between them, so that the fill light effect of the fill light lamp head is better.

[0006] It can be seen that the existing LED street lamps have the following technical defects: the fill light provided by the fill light head to the LED lamp head is uneven, the light rays of the two lamp heads partially cross, resulting in excessive local light brightness, and there are no restrictions on the light emission directions of the two lamp heads, which also causes light loss and waste and light pollution, is not conducive to the efficient use of road lighting, provides people with uncomfortable road lighting, and is not conducive to energy conservation and environmental protection. Summary of the invention

[0007] In order to overcome the shortcomings of the prior art, the purpose of the present invention is to provide a lighting system and a lighting device. The optical light distribution design of the lighting system is accurate, and the distribution range of the irradiated light can be effectively controlled to form an irradiated light spot extending along the road surface direction. The light source has uniform illumination, and the light is fully utilized in the irradiated area to achieve an ideal lighting effect, providing people with energy-saving, healthy and comfortable road lighting.

[0008] The present invention provides a lighting system, comprising: a first light portion, provided with a first LED light source and a first light receiving member, the inner side of the first light receiving member includes at least two pairs of light receiving surfaces, wherein one pair of the light receiving surfaces is arranged opposite to each other in a first direction, and the other pair of the light receiving surfaces is arranged opposite to each other in a second direction, the first LED light source is arranged in a third direction and the light-emitting surface is surrounded by the two pairs of light receiving surfaces, wherein the first direction, the second direction and the third direction are perpendicular to each other; and a second light portion, provided with a second LED light source and a second light receiving member, the second LED light source is arranged in the second direction and on the outer side of the first light receiving member, and the extension line of the central axis of the light-emitting surface of the second LED light source intersects with the central axis of the light-emitting surface of the first LED light source to form an angle of 20° to 60°; the inner side of the second light receiving member includes at least one main light receiving surface and a pair of auxiliary light receiving surfaces, wherein the pair of auxiliary light receiving surfaces are arranged opposite to each other in the first direction, the light-emitting surface of the second LED light source faces the main light receiving surface, and the free end of the main light receiving surface allows part of the direct light of the second LED light source to pass through, and the part of the direct light intersects with the second direction to form an angle greater than 0°.

[0009] In a preferred embodiment of the present invention, the main light-collecting surface comprises an inner light-collecting surface and an outer light-collecting surface which are smoothly connected, and the outer light-collecting surface is provided with the free end, and the free end converges toward the central axis of the light-emitting surface of the first LED light source.

[0010] In a preferred embodiment of the present invention, the inner light collecting surface is set as a parabolic stretching surface, and the outer light collecting surface is set as a parabolic stretching surface or an arbitrary curved surface.

[0011] In a preferred embodiment of the present invention, each of the auxiliary light-collecting surfaces comprises an inner auxiliary light-collecting surface and an outer auxiliary light-collecting surface which are connected with each other in a smooth transition, and a pair of the outer auxiliary light-collecting surfaces are close to each other.

[0012] In a preferred embodiment of the present invention, the inner auxiliary light-collecting surface is set as a parabolic stretching surface, and the auxiliary outer light-collecting surface is set as a parabolic stretching surface or an arbitrary curved surface.

[0013] In a preferred embodiment of the present invention, a smooth transition connection between the inner light collecting surface and the outer light collecting surface is located further outward than a smooth transition connection between the inner auxiliary light collecting surface and the outer auxiliary light collecting surface.

[0014] In a preferred embodiment of the present invention, one first light portion and two second light portions are included, and the two second light portions are symmetrically distributed on both sides of the first light portion about the central axis of the light-emitting surface of the first LED light source.

[0015] In a preferred embodiment of the present invention, two first light portions and two second light portions are included, the two first light portions are arranged side by side along the first direction, and the two second light portions are symmetrically distributed on both sides of the first light portion about the central axis of the light-emitting surface of the first LED light source.

[0016] The present invention provides a lighting device, comprising: a support rod and any one of the above-mentioned lighting systems installed on the support rod, and the first LED light source is arranged on a support plane parallel to the illuminated field.

[0017] The present invention provides a lighting device, comprising: N lighting units, each of the lighting units comprising a support rod and a lighting system as described above installed on the support rod, and the first LED light source is arranged on a supporting plane parallel to the illuminated field, wherein the N lighting units are distributed on the illuminated field at intervals along the second direction.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The above-mentioned lighting system provided by the present invention is firstly provided with a first light part, wherein the light-emitting surface of the first LED light source is surrounded by two pairs of light-receiving surfaces on the inner side of the first light-receiving component, which can collect all the emitted light (in the first direction and the second direction) of the first LED light source and then emit it to the designated first lighting area, thereby ensuring high light illumination; further, a second light part is provided, wherein the second LED light source is arranged in the second direction and on the outer side of the first light-receiving component, and the extension line of the central axis of the light-emitting surface of the second LED light source intersects with the central axis of the light-emitting surface of the first LED light source to form an angle of 20°~60°, and the light-emitting surface of the second LED light source faces the main light-receiving surface on the inner side of the second light-receiving component, and the free end of the main light-receiving surface allows part of the direct light of the second LED light source to pass through, and the part of the direct light intersects with the second direction to form an angle greater than 0°; that is, the second LED light source is separated from the first LED light source by the first light-receiving component, and it is ensured that the central axes of the light-emitting surfaces of the two intersect to form an acute angle of 20°~60°, that is, the emission of the second LED light source The light is collected by the main light collecting surface (in the second direction) and the auxiliary light collecting surface (in the first direction) on the inner side of the second light collecting component and then emitted to the designated second lighting area, so that the second LED light source has a uniform supplementary high-light illumination effect on the first LED light source in the second direction, that is, the first lighting area is extended and expanded in the second direction and achieves a uniform high-light illumination, and the free end of the main light collecting surface allows part of the direct light from the second LED light source to pass through, and this part of the direct light intersects with the second direction to form an angle greater than 0°, thereby ensuring the collection effect of the main light collecting surface on the emitted light of the second LED light source, avoiding light loss, and further ensuring high-light illumination; that is, when the lighting system is applied to road lighting, it can effectively control the distribution range of the irradiated light of the first LED light source and the second LED light source, forming an irradiation spot extending and spreading along the road surface direction (second direction), and the second LED light source has a uniform illuminance after supplementing the first LED light source, making full use of the light in the irradiated area, achieving an ideal lighting effect, and providing people with energy-saving, healthy and comfortable road lighting.

[0020] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by implementing the technical solution of the present invention. The purpose and other advantages of the present invention can be achieved and obtained by the structures and / or processes specifically pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of a lighting device provided by an embodiment of the present invention;

[0022] Figure 2 A schematic diagram of the structural decomposition of a lighting device provided by an embodiment of the present invention;

[0023] Figure 3 A cross-sectional schematic diagram of a lighting device provided by an embodiment of the present invention;

[0024] Figure 4 A schematic diagram of the optical principle of the lighting system provided by an embodiment of the present invention;

[0025] Figure 4a for Figure 4 AA cross-sectional diagram of ;

[0026] Figure 4b for Figure 4 BB cross-sectional diagram;

[0027] Figure 5 A schematic diagram of the optical effect of the lighting system provided by an embodiment of the present invention;

[0028] Figure 6 A schematic diagram of the structure of a lighting device provided in a modified example of the present invention;

[0029] Figure 6a A schematic diagram of the structural decomposition of a lighting device provided in a modified example of the present invention;

[0030] Description of Figure Numbers:

[0031] 1-Lighting device;

[0032] 10-lamp holder, 11-main board, 12-inclined wing plate;

[0033] 20-first light part, 21-first aluminum plate, 22-first LED light source, 23-first light receiving member, 231-light receiving surface A, 232-light receiving surface B;

[0034] 30-second light section, 31-second aluminum plate, 32-second LED light source, 33-second light receiving member, 331-main light receiving surface, 331-1-free end, 3311-inner light receiving surface, 3312-outer light receiving surface, 3313-smooth transition connection A, 332-auxiliary light receiving surface, 3321-inner auxiliary light receiving surface, 3322-outer auxiliary light receiving surface, 3323-smooth transition connection B;

[0035] 100-1- irradiation light A, 100-2- irradiation light B, 100-21- direct light;

[0036] 200-irradiation spot;

[0037] 1a-Lighting device;

[0038] 10a-lamp holder;

[0039] 20a-first light part, 21a-first aluminum plate, 22a-first LED light source, 23a-first light receiving member, 231a-light receiving surface A, 232a-light receiving surface B;

[0040] 30a-second light portion, 31a-second aluminum plate, 32a-second LED light source, 33a-second light receiving member, 331a-main light receiving surface, 331-1a-free end, 332a-auxiliary light receiving surface; DETAILED DESCRIPTION

[0041] The following will describe the implementation methods of the present invention in detail in combination with the accompanying drawings and embodiments, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly. It should be noted that these specific descriptions are only for ordinary technicians in this field to understand the present invention more easily and clearly, rather than a restrictive interpretation of the present invention; for example, the first and second mentioned in the embodiments of the present invention do not constitute a limitation thereto, but are only for expressing the serial numbers of multiple identical or similar devices and mechanisms. Ordinary technicians in this field can also readjust these serial numbers for the convenience of expression or in the process of arranging technical solutions; and alternative solutions are described for some mechanisms in different embodiments, and these alternatives can also be applied to other identical or similar devices and mechanisms; and as long as there is no conflict, the various embodiments in the present invention and the various features in each embodiment can be combined with each other, and the technical solutions formed are all within the protection scope of the present invention.

[0042] The technical solution of the present invention is described in detail below through the accompanying drawings and specific embodiments: Example

[0043] See also Figure 1-Figure 5 , Figure 1 A schematic diagram of the structure of a lighting device provided by an embodiment of the present invention, Figure 2 A schematic diagram of the structural decomposition of the lighting device provided in an embodiment of the present invention, Figure 3 A cross-sectional schematic diagram of a lighting device provided by an embodiment of the present invention, Figure 4 A schematic diagram of the optical principle of the lighting system provided by an embodiment of the present invention, Figure 4a for Figure 4 AA cross-sectional diagram of Figure 4b for Figure 4 BB cross-section diagram, Figure 5 A schematic diagram of the optical effect of the lighting system provided by an embodiment of the present invention.

[0044] See also Figure 1-Figure 5This embodiment provides a lighting device 1, which includes a support rod (not shown) and a lighting system installed on the support rod. The lighting system includes a lamp holder 10, a first light unit 20 and a second light unit 30. Specifically:

[0045] The lamp holder 10 is used to install the lighting system on a support rod, and the lamp holder 10 includes a main board 11 and an inclined wing plate 12 . The main board 11 is used to assemble the first light part 20 , and the inclined wing plate 12 is used to assemble the second light part 30 .

[0046] The first light portion 20 is provided with a first LED light source 22 and a first light receiving element 23, wherein the first LED light source 22 is mounted on a first aluminum plate 21 parallel to the illuminated field, wherein the inner side of the first light receiving element 23 includes at least two pairs of light receiving surfaces, namely a pair of light receiving surfaces A231 and a pair of light receiving surfaces B232, wherein the pair of light receiving surfaces A231 are arranged opposite to each other in a first direction, and the pair of light receiving surfaces B232 are arranged opposite to each other in a second direction, and the first LED light source 22 is arranged in a third direction and the light-emitting surface is surrounded by a pair of light receiving surfaces A231 and a pair of light receiving surfaces B232, and preferably the first light receiving element 23 is arranged in a symmetrical structure to improve the uniformity of illumination, wherein the first direction, the second direction and the third direction are perpendicular to each other.

[0047] The first LED light source 22 in this embodiment is an LED lamp bead, and preferably four LED lamp beads are arranged at equal intervals along the second direction, which can improve the illumination and widen the illumination range; and the first light receiving element 23 is preferably set as a reflective element, which can be a reflector, and its inner side includes at least two pairs of reflective surfaces. The light emitted by the LED lamp bead is reflected by the reflective surfaces in the first direction and the second direction and then collected and emitted (irradiation light A100-1), which can improve the light collection effect and avoid light waste.

[0048] The second light portion 30 is provided with a second LED light source 32 and a second light receiving member 33, and the second light portion 30 is assembled to the inclined wing plate 12 through a second aluminum plate 31, wherein the second LED light source 32 is arranged in the second direction and on the outside of the first light receiving member 23, and the extension line of the central axis of the light-emitting surface of the second LED light source 32 intersects with the central axis of the light-emitting surface of the first LED light source 22 to form an angle a of 20°~60°, and further preferably, the angle a is an acute angle of 30°, so that the second LED light source 32 has the best lighting supplement effect on the first LED light source 22 in the second direction, avoiding uneven supplementary lighting at too small an acute angle and no supplementary lighting at too large an angle.

[0049] Furthermore, the inner side of the second light receiving element 33 includes at least a main light receiving surface 331 and a pair of auxiliary light receiving surfaces 332, wherein the pair of auxiliary light receiving surfaces 332 are arranged opposite to each other in the first direction, the light emitting surface of the second LED light source 32 faces the main light receiving surface 331, and the free end 331-1 of the main light receiving surface 331 allows part of the direct light 100-21 of the second LED light source 32 to pass through, and the part of the direct light 100-21 intersects with the second direction to form an angle β greater than 0°, and further preferably, the angle β is greater than 10°, so that the main light receiving surface 331 has the best effect in collecting the emitted light of the second LED light source 32 to avoid light waste.

[0050] The second LED light source 32 in this embodiment is an LED lamp bead, and preferably four LED lamp beads are arranged, which can improve the illumination and widen the illumination range; and the second light receiving element 33 is preferably arranged as a reflector, which can be a reflector, and its inner side includes at least a main reflecting surface and a pair of auxiliary reflecting surfaces. The light emitted by the LED lamp bead is reflected by the reflecting surface and then emitted (irradiation light B100-2), which can improve the light receiving effect and avoid light waste.

[0051] See also Figure 4-Figure 5 The lighting system provided in this embodiment is firstly provided with a first light part 20, wherein the light emitting surface of the first LED light source 22 is surrounded by two pairs of light receiving surfaces on the inner side of the first light receiving member 23, which can collect all the emitted light (in the first direction and the second direction) of the first LED light source 22 and emit it to the designated first lighting area, and ensure high light intensity.

[0052] See also Figure 4-Figure 5 The lighting system is further provided with a second light portion 30, wherein the second LED light source 32 is arranged in the second direction and outside the first light receiving element 23, and the extension line of the central axis of the light-emitting surface of the second LED light source 32 intersects with the central axis of the light-emitting surface of the first LED light source 22 to form an angle a of 20°~60°, and the light-emitting surface of the second LED light source 32 faces the main light-receiving surface 331 on the inner side of the second light receiving element 33, and the free end 331-1 of the main light-receiving surface 331 allows part of the direct light 100-21 of the second LED light source 32 to pass through, and the part of the direct light 100-21 intersects with the second direction to form an angle β greater than 0°.

[0053] That is to say, the second LED light source 32 is separated from the first LED light source 22 by the first light receiving member 23, and the central axes of the light emitting surfaces of the two are ensured to intersect to form an acute angle a of 20°~60°, that is, the emitted light of the second LED light source 32 is collected by the main light receiving surface 331 (in the second direction) and the auxiliary light receiving surface 332 (in the first direction) on the inner side of the second light receiving member 33, and then emitted to the designated second lighting area, so that the second LED light source 32 has a uniform supplementary high light intensity effect on the first LED light source 22 in the second direction, that is, the first The lighting area extends and expands in the second direction and achieves uniform high light illumination, and the free end 331-1 of the main light collecting surface 331 allows part of the direct light 100-21 of the second LED light source 32 to pass through. This part of the direct light 100-21 intersects with the second direction to form an angle β greater than 0°, that is, the free end 331-1 blocks the direct light 100-21 that intersects with the second direction at an angle less than 0°, thereby ensuring the main light collecting surface 331 to collect the emitted light of the second LED light source 32, avoiding light loss and further ensuring high light illumination.

[0054] When the lighting system provided in this embodiment is applied to road lighting, it can effectively control the distribution range of the illumination light (illumination light A100-1, illumination light B100-2) of the first LED light source 22 and the second LED light source 32, forming an illumination light spot 200 extending along the road surface direction (second direction). When the lighting system is installed on a support pole 10m high, the illumination light spot 200 on the road surface can extend up to 10.8m in the first direction and up to 37m in the second direction. After the second LED light source 32 supplements the first LED light source 22, the illuminance is uniform, and the light is fully utilized in the illumination area to achieve an ideal lighting effect, thereby providing people with energy-saving, healthy and comfortable road lighting.

[0055] In the present embodiment, preferably, the main light-collecting surface 331 includes an inner light-collecting surface 3311 and an outer light-collecting surface 3312 which are smoothly connected, wherein the outer light-collecting surface 3312 is provided with a free end 331-1, and the free end 331-1 converges toward the central axis of the light-emitting surface of the first LED light source 22; as shown in the above structure, the main light-collecting surface 331 is composed of two light-collecting surfaces with different light-collecting degrees, and the light-collecting degree gradually increases from the inner light-collecting surface 3311 to the outer light-collecting surface 3312 and then to the free end 331-1, which can ensure the light-collecting effect of the main light-collecting surface 331 on the emitted light of the second LED light source 32 in the second direction, thereby forming a rational illumination spot 200 on the road surface.

[0056] In this embodiment, it is further preferred that the inner light-collecting surface 3311 is set as a parabolic stretching surface, and the outer light-collecting surface 3312 is set as a parabolic stretching surface or an arbitrary curved surface, wherein the parabolic stretching surface is a parabola extended along a first direction, and the parabola satisfies the formula y=2px, wherein p>2; as set above, the light-collecting effect of the inner light-collecting surface 3311 combined with the outer light-collecting surface 3312 is improved, and the lighting efficiency is high.

[0057] In the present embodiment, preferably, a pair of light receiving surfaces A231 and a pair of light receiving surfaces B232 of the first light receiving element 23 are set as parabolic stretching surfaces or arbitrary curved surfaces, wherein the parabolic stretching surface of the light receiving surface A231 is a parabola extending along the second direction, and the parabolic stretching surface of the light receiving surface B232 is a parabola extending along the first direction, and the parabola satisfies the formula y=2px, wherein p>2; as set above, the light collecting effect of the first light receiving element 23 is improved, and the light efficiency is high.

[0058] In the present embodiment, preferably, each auxiliary light-collecting surface 332 includes an inner auxiliary light-collecting surface 3321 and an outer auxiliary light-collecting surface 3322 which are smoothly connected, and the pair of outer auxiliary light-collecting surfaces 3322 are close to each other; as shown in the above structure, the auxiliary light-collecting surface 332 is composed of two light-collecting surfaces with different light-collecting degrees, and the light-collecting degree gradually increases from the inner auxiliary light-collecting surface 3321 to the outer auxiliary light-collecting surface 3322, which can ensure the light-collecting effect of the auxiliary light-collecting surface 332 on the emission light of the second LED light source 32 in the first direction, thereby forming a rational illumination spot 200 on the road surface.

[0059] In this embodiment, it is further preferred that the inner auxiliary light-collecting surface 3321 is set as a parabolic stretching surface, and the auxiliary outer light-collecting surface 3322 is set as a parabolic stretching surface or an arbitrary curved surface, wherein the parabolic stretching surface is a parabola extending along the central axis of the light-emitting surface of the second LED light source 32, and the parabola satisfies the formula y=2px, wherein p>2; as set above, the light-collecting effect of the inner auxiliary light-collecting surface 3321 combined with the auxiliary outer light-collecting surface 3322 is improved, and the lighting efficiency is high.

[0060] In the present embodiment, preferably, the smooth transition connection A3313 formed by the inner light collecting surface 3311 and the outer light collecting surface 3312 is located further outward than the smooth transition connection B3323 formed by the inner auxiliary light collecting surface 3321 and the outer auxiliary light collecting surface 3322; as configured above, after the second light receiving element 33 collects the light emitted by the second light source 32, the irradiation spot 200 formed has a smaller extension range in the first direction than that in the second direction, thereby ensuring that the illumination is uniform after the second LED light source 32 supplements the first LED light source 22, so as to make full use of the light in the irradiation area and achieve a better lighting effect.

[0061] In this embodiment, preferably, the lighting system includes a first light unit 20 and two second light units 30, and the two second light units 30 are symmetrically distributed on both sides of the first light unit 20 about the central axis of the light-emitting surface of the first LED light source 22. At this time, the two second LED light sources 32 have a uniform supplementary high-light illumination effect on the middle first LED light source 22 in the second direction, that is, the first lighting area extends and expands in the second direction and achieves uniform high-light illumination. Correspondingly, the lamp holder 10 is set to a symmetrical structure, including a main board 11 in the middle and inclined wing plates 12 on both sides, which is generally in a "π" shape, which increases the structural strength and facilitates the assembly of the first light unit 20 and the two second light units 30.

[0062] In addition, the present embodiment provides another lighting device 1, which includes N lighting units, each lighting unit includes a support rod and a lighting system installed on the support rod, and the first LED light source 22 provided in the lighting system is arranged on a first aluminum plate 21 parallel to the illuminated field, wherein the N lighting units are distributed on the illuminated field at intervals along the second direction. At this time, N illumination spots 200 extending along the second direction can be formed on the illuminated field, so that the light is fully utilized in the illumination area, achieving an ideal lighting effect, and providing people with energy-saving, healthy and comfortable road lighting.

[0063] Also, see Figure 6 and Figure 6a , Figure 6 This is a schematic diagram of the structure of a lighting device provided in a modified example of the present invention. Figure 6a This is a schematic diagram of the structural decomposition of a lighting device provided in a modified example of the present invention.

[0064] Specifically, the lighting system of the lighting device 1a includes two first light parts 20a and two second light parts 30a, the two first light parts 20a are arranged side by side along the first direction, and the two second light parts 30a are symmetrically distributed on both sides of the first light part 20a about the central axis of the light-emitting surface of the first LED light source 22a; further, the lighting system can also include multiple first light parts 20a and multiple second light parts 30a, the multiple first light parts 20a are arranged side by side along the first direction, and every two second light parts 30a are symmetrically distributed on both sides of the first light part 20a about the central axis of the light-emitting surface of the first LED light source 22a; as shown in the above structural arrangement, the number of first light parts 20a and second light parts 30a is increased along the first direction, which can further improve the light brightness and uniformity of the lighting device 1a, make full use of the light in the irradiated area, and provide people with energy-saving, healthy and comfortable road lighting.

[0065] like Figure 6aAs shown in the figure, the lamp holder 10a, the first aluminum plate 21a, and the second aluminum plate 31a are arranged in an increased area corresponding to the settings of the first light portion 20a and the second light portion 30a, the light receiving surface A231a and the light receiving surface B232a of the first light receiving element 23a are increased in number corresponding to the first light portion 20a, the main light receiving surface 331a of the second light receiving element 33a is increased in number corresponding to the second light portion 30a, the auxiliary light receiving surface 332a and the free end 331-1a are arranged in an increased area corresponding to the setting of the second light portion 30a, and the first light receiving element 23a and the second light receiving element 33a can still be formed as one piece in structure; the rest is consistent with the above-mentioned embodiment and will not be repeated here.

[0066] Finally, it should be noted that the above description is only the best embodiment of the present invention and does not limit the present invention in any form. Any technician familiar with the art can make many possible changes and simple replacements to the technical solution of the present invention by using the above disclosed practices and technical contents without departing from the scope of the technical solution of the present invention, which all belong to the scope of protection of the technical solution of the present invention.

Claims

1. A lighting system, applied to road lighting, characterized in that: include: The first light portion is provided with a first LED light source and a first light receiving member, the inner side of the first light receiving member includes at least two pairs of light receiving surfaces, one pair of the light receiving surfaces is arranged opposite to each other in a first direction, and the other pair of the light receiving surfaces is arranged opposite to each other in a second direction, the first LED light source is arranged in a third direction and the light emitting surface is surrounded by the two pairs of light receiving surfaces, wherein the first direction, the second direction and the third direction are perpendicular to each other; and The second light portion is provided with a second LED light source and a second light receiving member, the second LED light source is arranged in the second direction and outside the first light receiving member, and the extension line of the central axis of the light-emitting surface of the second LED light source intersects with the central axis of the light-emitting surface of the first LED light source to form an angle of 20° to 60°; The inner side of the second light receiving element includes at least a main light receiving surface and a pair of auxiliary light receiving surfaces, wherein the pair of auxiliary light receiving surfaces are arranged opposite to each other in the first direction, the light emitting surface of the second LED light source faces the main light receiving surface, and the free end of the main light receiving surface allows part of the direct light from the second LED light source to pass through, and the part of the direct light intersects the second direction to form an angle greater than 0°.

2. The lighting system according to claim 1, characterized in that The main light-collecting surface comprises an inner light-collecting surface and an outer light-collecting surface which are connected in a smooth transition. The outer light-collecting surface is provided with the free end, and the free end converges toward the central axis of the light-emitting surface of the first LED light source.

3. The lighting system according to claim 2, characterized in that The inner light collecting surface is set as a parabolic stretching surface, and the outer light collecting surface is set as a parabolic stretching surface or an arbitrary curved surface.

4. The lighting system according to claim 2, characterized in that Each of the auxiliary light-collecting surfaces comprises an inner auxiliary light-collecting surface and an outer auxiliary light-collecting surface which are connected with each other in a smooth transition, and a pair of the outer auxiliary light-collecting surfaces are close to each other.

5. The lighting system according to claim 4, characterized in that: The inner auxiliary light-collecting surface is set as a parabolic stretching surface, and the outer auxiliary light-collecting surface is set as a parabolic stretching surface or an arbitrary curved surface.

6. The lighting system according to claim 4, characterized in that The smooth transition connection between the inner light collecting surface and the outer light collecting surface is located further outward than the smooth transition connection between the inner auxiliary light collecting surface and the outer auxiliary light collecting surface.

7. The lighting system according to any one of claims 1 to 6, characterized in that: It comprises one first light portion and two second light portions, and the two second light portions are symmetrically distributed on both sides of the first light portion about the central axis of the light-emitting surface of the first LED light source.

8. The lighting system according to any one of claims 1 to 6, characterized in that: It comprises two first light parts and two second light parts, the two first light parts are arranged side by side along the first direction, and the two second light parts are symmetrically distributed on both sides of the first light part about the central axis of the light emitting surface of the first LED light source.

9. A lighting device, characterized in that: The invention comprises a support rod and a lighting system as claimed in any one of claims 1 to 8 mounted on the support rod, wherein the first LED light source is arranged on a support plane parallel to the illuminated field.

10. A lighting device, characterized in that: It comprises N lighting units, each of which comprises a support rod and a lighting system as described in any one of claims 1 to 8 mounted on the support rod, and the first LED light source is arranged on a support plane parallel to the illuminated field, wherein the N lighting units are distributed on the illuminated field at intervals along the second direction.

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