Polishing device and detection equipment

Abstract

The embodiment of the invention relates to the technical field of lens detection, and discloses a lighting device and detection device.The lighting device comprises a supporting platform, a first lamp strip, a second lamp strip, a connecting piece and a first rotating module, one end of the first lamp strip and one end of the second lamp strip are both connected with the supporting platform, and the other end of the first lamp strip and the other end of the second lamp strip are both connected with the connecting piece; the supporting platform, the first lamp strip, the second lamp strip and the connecting piece jointly define an arc-shaped space. The first rotating module comprises a rotating disc, a driving assembly and a bearing assembly, the bearing assembly is arranged on the rotating disc and used for bearing a to-be-detected lens, the driving assembly is used for driving the rotating disc to rotate so as to drive the bearing assembly to enter or leave the detection station, and when the bearing assembly is located at the detection station, the to-be-detected lens is located in the arc-shaped space; and light emitted by the first lamp strip and the second lamp strip is gathered on the to-be-detected lens on the bearing assembly. In this way, the illumination intensity of the to-be-detected lens can be improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of lens detection technology, and in particular, to a lighting device and a detection equipment. Background Art

[0002] Lenses are widely used in cameras, camcorders, radars, AR devices and other products. The quality of lenses has an important impact on the performance of the products. Therefore, it is very important to detect the quality of lenses.

[0003] When performing optical performance testing on a lens, a lighting device is required to illuminate the lens to be tested. In the related art, the lighting device has a weak light intensity on the lens to be tested, which is not conducive to performing optical performance testing on the lens to be tested. Summary of the invention

[0004] The main technical problem solved by the embodiments of the present application is to provide a lighting device and a detection device, which can improve the illumination intensity of the lens to be detected, thereby improving the accuracy of the detection of the lens to be detected.

[0005] In order to solve the above technical problems, a technical solution adopted in an embodiment of the present application is: providing a lighting device, including a supporting platform, a first light strip, a second light strip, a connecting member and a first rotating module, wherein one end of the first light strip is connected to the supporting platform; one end of the second light strip is connected to the supporting platform; one end of the connecting member is connected to an end of the first light strip away from the supporting platform, and the other end of the connecting member is connected to an end of the second light strip away from the supporting platform, and the supporting platform, the first light strip, the second light strip and the connecting member are jointly enclosed to form an arc space; the first rotating module includes a turntable, a driving assembly and a bearing assembly, the driving assembly is installed on the supporting platform, the turntable is installed on the driving assembly, the bearing assembly is arranged on the turntable, the bearing assembly is used to carry the lens to be detected, and the driving assembly is used to drive the turntable to rotate, so as to drive the bearing assembly to enter or leave the detection station, wherein, when the bearing assembly is in the detection station, the lens to be detected is in the arc space, and the light emitted by the first light strip and the second light strip is concentrated on the lens to be detected on the bearing assembly.

[0006] In some embodiments, the first light strip is provided with multiple light sources at intervals from one end of the first light strip close to the support platform to one end of the first light strip away from the support platform; and the second light strip is provided with multiple light sources at intervals from one end of the second light strip close to the support platform to one end of the second light strip away from the support platform.

[0007] In some embodiments, the light source closest to the supporting platform in the first light strip is the first light source; in the first direction, the first light source and the lens to be inspected at the inspection station are respectively located on both sides of the turntable, and the first direction is perpendicular to the turntable.

[0008] In some embodiments, the light source closest to the supporting platform in the second light strip is the second light source; in the first direction, the second light source and the lens to be inspected located at the inspection station are respectively located on both sides of the turntable.

[0009] In some embodiments, there are multiple supporting components, and the multiple supporting components are arranged on the turntable in a circular shape and at intervals.

[0010] In some embodiments, the turntable is provided with a plurality of avoidance gaps, a bearing assembly is provided between two adjacent avoidance gaps, and the avoidance gaps are used to avoid light emitted by the first light source and / or the second light source to the lens to be inspected at the inspection station.

[0011] In some embodiments, there are multiple first light strips, one end of each of the multiple first light strips is connected to the support platform, the other end of each of the multiple first light strips is connected to the connecting piece, and the multiple first light strips are spaced apart and distributed in an arc shape.

[0012] In some embodiments, there are multiple second light strips, one end of each of the multiple second light strips is connected to the support platform, the other end of each of the multiple second light strips is connected to the connecting piece, and the multiple second light strips are spaced apart and distributed in an arc shape.

[0013] In some embodiments, the lighting device also includes a second rotating module, which is installed on the supporting platform. When the supporting component is in the detection station, the second rotating module is connected to the supporting component located at the detection station to drive the supporting component located at the detection station to rotate.

[0014] In order to solve the above technical problems, another technical solution adopted in the embodiment of the present application is: to provide a detection device, including the above lighting device.

[0015] The beneficial effect of the embodiment of the present application is: different from the prior art, in the embodiment of the present application, by setting the first light strip, the second light strip and the connecting piece, one end of the first light strip is connected to the supporting platform, the other end of the first light strip is connected to the connecting piece, one end of the second light strip is connected to the supporting platform, and the other end of the second light strip is connected to the connecting piece, so that the supporting platform, the first light strip, the second light strip and the connecting piece together form an arc space, when the carrying assembly is in the detection station, the lens to be detected on the carrying assembly is located in the arc space, and the light emitted by the first light strip and the second light strip is concentrated on the lens to be detected on the detection station, thereby increasing the light intensity of the lighting device on the lens to be detected, which is beneficial to the accuracy of the detection of the lens to be detected by the detection equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0017] Figure 1 It is a structural schematic diagram of a lighting device in the prior art;

[0018] Figure 2 is a schematic diagram of the structure of a lighting device provided in an embodiment of the present application;

[0019] Figure 3 is a schematic diagram of the partial structure of the lighting device provided in an embodiment of the present application at a first viewing angle;

[0020] Figure 4 is a schematic diagram of the partial structure of the lighting device provided in an embodiment of the present application at a second viewing angle;

[0021] Figure 5 is a schematic diagram of a partial structure of a lighting device provided in an embodiment of the present application at a third viewing angle;

[0022] Figure 6 yes Figure 3 A magnified view of the area shown in part B;

[0023] Figure 7 yes Figure 3 Enlarged view of the area shown in middle C;

[0024] Figure 8 yes Figure 3 Magnified view of the area shown in part A.

[0025] Description of symbols

[0026]

[0027] DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on another element or there can be one or more centered elements therebetween. When an element is described as "connected" to another element, it can be directly connected to another element or there can be one or more centered elements therebetween. The orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "vertical", "horizontal", etc. used in this specification is based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0030] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0031] Lenses are widely used in cameras, camcorders, radars, AR devices and other products. The quality of lenses has an important impact on the performance of the products. Therefore, it is very important to detect the quality of lenses.

[0032] When testing the optical performance of a lens, a lighting device is required to illuminate the lens to be tested. For related technologies, please refer to Figure 1 The lighting device includes a light strip 10 and a carrier plate 20. The light strip 10 is roughly in the shape of a quarter circle. The carrier plate 20 is used to carry the lens to be tested. The lens to be tested is roughly located at the center of the light strip 10. The light strip 10 is used to illuminate the lens to be tested so as to test the lens to be tested. However, in this way, the light intensity of the lighting device on the lens to be tested is low, which is not conducive to the optical performance test of the lens to be tested.

[0033] In order to solve the above problems, the present application provides a lighting device and a detection device, which can improve the illumination intensity of the lens to be detected, thereby improving the detection accuracy of the lens to be detected.

[0034] See also Figure 2 , Figure 3 and Figure 4 , Figure 3 and Figure 4 H represents the trajectory of light. The lighting device 100 includes a support platform 1, a first light strip 2, a second light strip 3, a connector 4 and a first rotating module 5. One end of the first light strip 2 and one end of the second light strip 3 are both connected to the support platform 1. One end of the connector 4 is connected to the end of the first light strip 2 away from the support platform 1, and the other end of the connector 4 is connected to the end of the second light strip 3 away from the support platform 1. The support platform 1, the first light strip 2, the second light strip 3 and the connector 4 are together enclosed to form an arc space 6. The first rotating module 5 includes a turntable 51, a driving assembly 52 and a bearing assembly 53. The driving assembly 52 is installed on the support platform 1, and the turntable 51 is installed on the driving assembly 52. ​​The driving assembly 52 is used to drive the turntable 51 to rotate. The bearing assembly 53 is arranged on the turntable 51, and the bearing assembly 53 is used to carry the lens to be detected (unnumbered). When the lens to be detected is detected, the turntable 51 is driven to rotate by the driving assembly 52 so that the bearing assembly 53 installed on the turntable 51 rotates to the detection station. At this time, the lens to be detected on the bearing assembly 53 located at the detection station is in the arc space 6, and the light emitted by the first light strip 2 and the second light strip 3 is gathered toward the lens to be detected. Compared with the prior art, the present application increases the illumination intensity of the lens to be detected on the detection station by setting the first light strip 2 and the second light strip 3, which is conducive to improving the accuracy of the detection of the lens to be detected and facilitating the detection of the lens to be detected. In addition, the first light strip 2 and the second light strip 3 are connected by the connecting member 4. Compared with using a light strip to surround the lens to be detected, the length of the first light strip 2 and the second light strip 3 is shorter and the manufacturing difficulty is low; and the light strip is too long in the way of using a light strip, resulting in insufficient strength, and the top of the light strip is easy to shake, and the first light strip 2 and the second light strip 3 are connected by the connecting member 4, which can reduce the risk of shaking of the light strip in the top area, which is conducive to improving the accuracy of detection.

[0035] In some embodiments, the connecting member 4 is made of metal material, thereby further reducing the risk of the first light strip 2 and the second light strip 3 shaking in the top area thereof.

[0036] In some embodiments, not shown, the connector 4 may also be fixed to the support platform 1 via a fixing rod, thereby further reducing the risk of shaking of the first light strip 2 and the second light strip 3 .

[0037] In some embodiments, see Figure 3 and Figure 4 From one end of the first light strip 2 close to the supporting platform 1 to the other end of the first light strip 2 away from the supporting platform 1, the first light strip 2 is provided with a plurality of light sources 23 at intervals, and the illumination directions of the plurality of light sources 23 are all concentrated on the lens to be inspected on the supporting assembly 53 located at the inspection station, thereby improving the illumination intensity of the lens to be inspected on the inspection station.

[0038] In some embodiments, the first light strip 2 extends substantially in an arc shape so that the illumination direction of each light source 23 on the first light strip 2 is concentrated on the lens to be inspected at the inspection station.

[0039] In some embodiments, see Figure 3 and Figure 4 From one end of the second light strip 3 close to the supporting platform 1 to the other end of the second light strip 3 away from the supporting platform 1, the second light strip 3 is provided with a plurality of light sources 33 at intervals, and the illumination directions of the plurality of light sources 33 are all concentrated on the lens to be inspected on the supporting assembly 53 located at the inspection station, thereby improving the illumination intensity of the lens to be inspected on the inspection station.

[0040] In some embodiments, the second light strip 3 extends substantially in an arc shape so that the illumination direction of each light source 33 on the second light strip 3 is concentrated on the lens to be inspected at the inspection station.

[0041] In some embodiments, see Figure 4 , the light source closest to the supporting platform 1 in the first light strip 2 is the first light source 21, and in the first direction X, the first light source 21 and the lens to be inspected at the inspection station are respectively located on both sides of the turntable 51, wherein the first direction X is perpendicular to the turntable 51. In other words, the first light source 21 is located at the end of the turntable 51 away from the lens to be inspected, and in this way, the first light source 21 can illuminate the lens to be inspected at the inspection station from below, thereby increasing the illumination range of the lens to be inspected, which is conducive to improving the accuracy of the inspection of the lens to be inspected.

[0042] In some embodiments, see Figure 4 , the light source closest to the supporting platform 1 in the second light strip 3 is the second light source 31, and in the first direction X, the second light source 31 and the lens to be inspected at the inspection station are respectively located on both sides of the turntable 51. In other words, the second light source 31 is located on the side of the turntable 51 away from the lens to be inspected. In this way, the second light source 31 can illuminate the lens to be inspected at the inspection station from below, thereby increasing the illumination range of the lens to be inspected, which is conducive to improving the accuracy of the inspection of the lens to be inspected.

[0043] In some embodiments, see Figure 3 and Figure 5 There are multiple bearing assemblies 53, which are arranged at intervals on the turntable 51 in a circular shape. The circle formed by the multiple bearing assemblies 53 coincides with the rotation center of the turntable 51. The multiple bearing assemblies 53 are used to carry the lenses to be tested. Under the drive of the driving assembly 52, each bearing assembly 53 can be rotated to the testing station, so as to test the lenses to be tested on the bearing assembly 53.

[0044] In some embodiments, please refer to Figure 3 and Figure 5 The turntable 51 is provided with a plurality of avoidance gaps 511, and the plurality of avoidance gaps 511 are distributed at intervals in a circular shape. A bearing assembly 53 is provided between two adjacent avoidance gaps 511, and the avoidance gap 511 is used to avoid the light emitted from the first light source 21 and the second light source 31 to the lens located at the detection station. Specifically, the avoidance gap 511 located on one side of the bearing assembly 53 can avoid the light emitted from the first light source 21, so that the light emitted from the first light source 21 can pass through the avoidance gap 511 to illuminate the lens to be detected on the bearing assembly 53 located at the detection station; the avoidance gap 511 located on the other side of the bearing assembly 53 can avoid the light emitted from the second light source 31, so that the light emitted from the second light source 31 can pass through the avoidance gap 511 to illuminate the lens to be detected on the bearing assembly 53 located at the detection station. In this embodiment, an avoidance gap 511 is provided to prevent the first light source 21 and the second light source 31 from radiating light to the lens to be inspected on the supporting assembly 53 located at the inspection station, thereby increasing the light intensity on the lens to be inspected, which is beneficial to improving the accuracy of the inspection of the lens to be inspected.

[0045] In some embodiments, see Figure 3 and Figure 6 The first light strip 2 includes a first mounting bar 22 and a plurality of the above-mentioned light sources 23. One end of the first mounting bar 22 is connected to the supporting platform 1, and the other end of the first mounting bar 22 is connected to the connecting member 4. The plurality of light sources 23 are detachably arranged at intervals on the first mounting bar 22. Specifically, the first mounting bar 22 is provided with a plurality of first mounting grooves 221, and the plurality of first mounting grooves 221 are spaced apart along the length direction of the first mounting bar 22. The light source 23 includes a first lamp body 231 and a first fastener 232. At least a portion of a first lamp body 231 is passed through a first mounting groove 221, and a first fastener 232 corresponds to a first mounting groove 221. A first fastener 232 presses a portion of a first lamp body 231 received in the first mounting groove 221 against the inner wall of the first mounting groove 221, thereby fixing the first lamp body 231 to the first mounting bar 22. In this embodiment, by detachably mounting the plurality of light sources 23 on the first mounting bar 22 , when a light source 23 is damaged, the damaged light source 23 can be directly replaced without affecting other light sources 23 .

[0046] In some embodiments, see Figure 3 and Figure 7The second light strip 3 includes a second mounting bar 32 and a plurality of the above-mentioned light sources 33. One end of the second mounting bar 32 is connected to the supporting platform 1, and the other end of the second mounting bar 32 is connected to the connecting member 4. The plurality of light sources 33 are detachably arranged at intervals on the second mounting bar 32. Specifically, the second mounting bar 32 is provided with a plurality of second mounting grooves 321, and the plurality of second mounting grooves 321 are spaced apart along the length direction of the second mounting bar 32. The light source 33 includes a second lamp body 331 and a second fastener 332. At least a portion of a second lamp body 331 is passed through a second mounting groove 321, and a second fastener 332 corresponds to a second mounting groove 321. A second fastener 332 presses a portion of a second lamp body 331 received in the second mounting groove 321 against the inner wall of the second mounting groove 321, so as to detachably fix the second lamp body 331 to the second mounting bar 32. In this embodiment, by detachably mounting the plurality of light sources 33 on the second mounting bar 32 , when a light source 33 is damaged, the damaged light source 33 can be directly replaced without affecting other light sources 33 .

[0047] In some embodiments, see Figure 3 The number of the first light strips 2 is multiple, one end of each of the multiple first light strips 2 is connected to the support platform 1, and the other end of each of the multiple first light strips 2 is connected to the connecting member 4, and the multiple first light strips 2 are distributed in an arc shape at intervals, so that the light source in each first light strip 2 can focus the light on the lens to be inspected on the bearing assembly 53 located at the inspection station. In this embodiment, by providing multiple first light strips 2, the light intensity of the lens to be inspected can be improved, which is conducive to improving the accuracy of the inspection of the lens to be inspected. In addition, for the detection of lenses, the lenses need to be rotated a certain angle each time they are detected, so as to achieve multi-directional detection of the lenses. In the related art, when detecting lenses, due to the small lighting area of ​​the lenses, the lens is rotated at a small angle each time it is detected. To achieve 360° all-round detection, the lenses need to be rotated more times, resulting in a long detection time for the same lens. In the present embodiment, a plurality of first light strips 2 are provided, and the plurality of first light strips 2 are distributed in an arc shape at intervals, thereby increasing the illumination area of ​​the lenses to be detected. For the detection of the same lens to be detected, the angle of each rotation of the lens can be increased, and the number of detections is reduced, which is beneficial to shortening the detection time and improving the detection efficiency.

[0048] In some embodiments, see Figure 3, the number of the second light strips 3 is multiple, one end of each of the multiple second light strips 3 is connected to the support platform 1, and the other end of each of the multiple second light strips 3 is connected to the connector 4, and the multiple second light strips 3 are distributed in an arc shape at intervals, so that the light source in each second light strip 3 can focus the light on the lens to be detected on the bearing assembly 53 located at the detection station. In this embodiment, by setting up multiple second light strips 3, the illumination intensity of the lens to be detected can be improved, which is beneficial to improving the accuracy of the detection of the lens to be detected. In addition, by setting up multiple second light strips 3, and the multiple second light strips 3 are distributed in an arc shape at intervals, the illumination area of ​​the lens to be detected is increased. For the detection of the same lens to be detected, the angle of each rotation of the lens can be increased, and the number of detections is reduced, which is beneficial to shorten the detection time and improve the detection efficiency.

[0049] In some embodiments, see Figure 3 The lighting device 100 includes a second rotating module 7, which is installed on the supporting platform 1. The bearing assembly 53 can rotate relative to the turntable 51, and when the bearing assembly 53 is in the detection station, the second rotating module 7 establishes a connection relationship with the bearing assembly 53 located at the detection station, and the second rotating module 7 can drive the bearing assembly 53 to rotate, thereby driving the lens to be detected to rotate, thereby realizing multi-directional detection of the lens to be detected and improving the accuracy of the detection.

[0050] For further information, see Figure 3 and Figure 8 The bearing assembly 53 has a first gear 531, and the second rotating module 7 has a second gear 71. When the bearing assembly 53 is in the detection position, the first gear 531 and the second gear 71 are meshed, and the second rotating module 7 drives the bearing assembly 53 to rotate through the second gear 71 and the first gear 531, thereby driving the lens to be detected to rotate, thereby realizing multi-directional detection of the lens to be detected.

[0051] In the embodiment of the present application, by setting the first light strip 2, the second light strip 3 and the connecting member 4, one end of the first light strip 2 is connected to the supporting platform 1, the other end of the first light strip 2 is connected to the connecting member 4, one end of the second light strip 3 is connected to the supporting platform 1, and the other end of the second light strip 3 is connected to the connecting member 4, so that the supporting platform 1, the first light strip 2, the second light strip 3 and the connecting member 4 together form an arc space 6. When the supporting assembly 53 is in the detection station, the lens to be detected on the supporting assembly 53 is located in the arc space 6, and the light emitted by the first light strip 2 and the second light strip 3 is concentrated on the lens to be detected on the detection station, thereby increasing the light intensity of the lighting device 100 on the lens to be detected, which is beneficial to the accuracy of the detection of the lens to be detected by the detection equipment.

[0052] The present application further provides an embodiment of a detection device, the detection device includes the above-mentioned lighting device 100. The specific structure and function of the lighting device 100 can be found in the above-mentioned embodiment, which will not be described one by one here.

[0053] The above descriptions are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A lighting device, characterized in that: include: Support platform; A first light strip, one end of which is connected to the supporting platform; A second light strip, one end of which is connected to the supporting platform; A connecting member, one end of which is connected to an end of the first light strip away from the supporting platform, and the other end of the connecting member is connected to an end of the second light strip away from the supporting platform, wherein the supporting platform, the first light strip, the second light strip and the connecting member together enclose an arc-shaped space; The first rotating module comprises a turntable, a driving assembly and a bearing assembly, wherein the driving assembly is mounted on the supporting platform, the turntable is mounted on the driving assembly, the bearing assembly is arranged on the turntable, the bearing assembly is used to bear the lens to be inspected, and the driving assembly is used to drive the turntable to rotate so as to drive the bearing assembly to enter or leave the inspection station, wherein when the bearing assembly is in the inspection station, the lens to be inspected is in the arc space, and the light emitted by the first light belt and the second light belt is concentrated on the lens to be inspected on the bearing assembly.

2. The lighting device according to claim 1, characterized in that: A plurality of light sources are arranged at intervals on the first light strip from one end of the first light strip close to the support platform to one end of the first light strip away from the support platform; A plurality of light sources are arranged at intervals on the second light strip from an end of the second light strip close to the support platform to an end of the second light strip away from the support platform.

3. The lighting device according to claim 2, characterized in that: The light source closest to the supporting platform in the first light strip is the first light source; In a first direction, the first light source and the lens to be inspected located at the inspection station are located on two sides of the turntable respectively, and the first direction is perpendicular to the turntable.

4. The lighting device according to claim 3, characterized in that: The light source closest to the supporting platform in the second light strip is the second light source; In the first direction, the second light source and the lens to be inspected located at the inspection station are located on two sides of the turntable respectively.

5. The lighting device according to claim 4, characterized in that: There are multiple bearing components, and the multiple bearing components are arranged on the rotating disk at intervals in a circumferential shape.

6. The lighting device according to claim 5, characterized in that: The turntable is provided with a plurality of avoidance gaps, and a bearing assembly is arranged between two adjacent avoidance gaps, and the avoidance gaps are used to avoid the light emitted by the first light source and / or the second light source to the lens to be inspected located at the inspection station.

7. The lighting device according to claim 1, characterized in that: There are multiple first light strips, one end of each of the multiple first light strips is connected to the supporting platform, the other end of each of the multiple first light strips is connected to the connecting piece, and the multiple first light strips are distributed in an arc shape at intervals.

8. The lighting device according to claim 7, characterized in that: There are multiple second light strips, one ends of each of the multiple second light strips are connected to the supporting platform, the other ends of each of the multiple second light strips are connected to the connecting piece, and the multiple second light strips are distributed in an arc shape at intervals.

9. The lighting device according to any one of claims 1 to 8, characterized in that: The lighting device also includes a second rotating module, which is installed on the supporting platform. When the supporting component is in the detection station, the second rotating module is connected to the supporting component located at the detection station to drive the supporting component located at the detection station to rotate.

10. A detection device, characterized in that: It comprises a lighting device as described in any one of claims 1-9.

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