JP3214527U - Lighting device - Google Patents

Abstract

The present invention overcomes or substantially improves the disadvantages of the prior art and, more generally, provides an improved lighting device. A lighting device, particularly a lighting device for illuminating a display object, includes a platform that is supported for rotation on a housing about an upright axis. A light source emits light upward through at least a portion of the platform 14. A power source is connected to the light source and a motor that rotates the platform 14. To provide device versatility and easy reconfiguration, an annular recess is provided on the exterior of the housing 12, the annular recess having a concave surface extending around the upright axis, and the frame 16 projects from the housing 12. The frame 16 has a support surface configured to extend circumferentially around the platform 14 and to be complementary to and rest on the concave surface. [Selection] Figure 1

Description

  The present invention relates generally to light sources, and more specifically to lighting devices that provide a visually enjoyable play of light, particularly on display items.

  There is a constant demand for lighting devices that provide lighting effects and light patterns that enhance the enjoyment of precious objects such as crystals, statues, porcelain figurines, jade sculptures, jewelry, watches and flowers. is there. Typically, however, the light sources in these display devices illuminate the display item itself or project light through the display item itself for a lighting effect that would provide a more exciting and enjoyable visual effect. It is positioned so as to emit light outward from the display item without the. Prior art display devices also lack versatility and are not reconfigurable to illuminate both different types and sizes of items and illuminate them in different ways, or easily reconfigurable. It is an object of the present invention to overcome or substantially improve the above disadvantages, and more generally to provide an improved lighting device.

According to one feature of the invention,
A housing defining a housing chamber;
At least one platform supported by the housing, at least a portion of which is configured to transmit light;
At least one light source that emits light upward through at least a portion of the rotating platform;
An annular recess on the exterior of the housing, the annular recess having a concave surface extending about an upright axis;
At least one frame configured to protrude from the housing and extend circumferentially around the platform, the frame having at least a support surface configured to be complementary to and rest on the concave surface One frame,
A motor that rotates a platform or at least one light source about an upright axis;
Including at least one light source and a power source connected to the motor;
A lighting device is provided.

  Preferably, the lighting device further includes a removable seat that rests on the top of the housing between the top of the housing and the platform, the removable seat supporting the platform for independent rotation of the platform relative to the housing. .

  Preferably, the removable seat comprises a lamp receiving opening for receiving at least one light source, supports at least one bearing element, and the platform rests on said bearing element.

  Preferably, the removable seat projects radially outward from the outer edge of the upper part of the housing, and at least one bearing element is arranged outside the outer edge of the upper part of the housing.

  Preferably, the at least one bearing element comprises an array of equivalent balls, each ball abutting the lower surface of the platform.

  Preferably, the array includes two concentric circles and each of the balls is located on the two concentric circles.

  Preferably, the at least one frame has a generally frustoconical form that tapers outward and upward from a small rim received in the annular recess to a large rim.

  Preferably, at least one frame is composed of a translucent material.

  Preferably, the small rim is circular and the large rim is elliptical and lies in a plane inclined at an angle of inclination with respect to the axis of the frame.

  Preferably, the at least one frame includes a first frame having a large inclination angle and a second frame exchangeable with the first frame and having a small inclination angle, and the at least one platform includes the first frame A small circular platform configured to be surrounded by a second frame and a larger circular platform that is interchangeable with the first platform, surrounded by a second frame.

  Preferably, the lighting device further includes at least one light modifying member and a top surface of the platform configured to support and position the light modifying member.

  Preferably, the at least one light modifying member comprises a thin annular member comprising opposing parallel surfaces, one of which abuts the top surface of the platform and the other may support a display item supported by the platform. The axial projection at the hub portion of the platform is received in the center of the light changing member for positioning the light changing member.

  The light modifying member may comprise a single sheet or a thin layer (laminate) (eg, consisting of metal, polymer film or fabric). The sheet may be colored and / or may have a different translucence and transparency background and pattern. The light modifying member is positioned on the platform such that light emitted from the light source projects a color and / or light pattern based on the light modifying material. In operation, the light emitted from the lighting device travels through different translucent and transparent light modifying members and platforms to provide different lighting effects, support the display item to prevent surface damage and avoid sliding (mat) may also be advantageously provided.

  Preferably, the at least one light modifying member comprises a plurality of thin metal rings painted in different colors.

  Preferably, the removable seat has a diameter that is larger than the diameter of the small rim.

  Preferably, the housing is a two-piece construction of molded plastic comprising a first part and a second part, above the first part, the upper part And an annular recess is formed, the first portion defining the housing chamber and the second portion secured to the first portion to form a closure for the housing chamber.

  Preferably, the lighting device further includes a drive shaft that rotates about an upright axis and is supported to transmit torque from the motor to the platform, wherein the drive shaft is within a blind opening in the second half of the housing. The supported and lighting device further includes a first gear formed integrally with the drive shaft.

  Preferably, the motor has an output shaft parallel to the drive shaft and a second gear fixed to the output shaft and meshing with the first gear.

  Preferably, the at least one light source includes a plurality of LEDs, each LED protruding from the top of the housing and positioned for alignment with a respective lamp receiving opening in the sheet, and the LEDs are a number of different colors To emit.

  Preferably, half of the LEDs are arranged near the upright axis in the first circular array (array), and half of the LEDs are arranged radially outside the first circular array.

  Preferably the platform is formed of a translucent material.

  Preferably, the platform further includes a plurality of circular holes of equal diameter extending between the top and bottom surfaces of the platform.

  Preferably, the lighting device further includes a plurality of mounting fixtures, each mounting fixture comprising a fixing portion in a form complementary to the circular hole, whereby the mounting fixture is for supporting the display item. It may be removably attached to the platform.

  Preferably, the platform further includes a pair of parallel passages formed in the upper surface.

  Preferably, the lighting device further comprises a book support comprising a rectangular body comprising a projecting flange at the lower end and a leg hingedly fixed proximate to the opposite upper end, the body The lower end and leg of each include a parallel projecting foot, each configured to be received in a respective one of the passages.

  Preferably, the lighting device further comprises a crystal, blue gold stone or glass object supported on the platform and shining under illumination from at least one light source. The object may be a solid glass rendition of a candle, which includes a cylindrical body with a flame-like structure on top of it. The flame-like structure may be made of transparent colorless glass, and may be made of colored (colored) glass, preferably both yellow and red colored glass. Alternatively, the object may be a solid glass tea bottle or a glass bottle.

In other features, the present invention includes a method of illuminating a display object using a lighting device substantially as described above,
The method is
Dropping the frame into the annular recess and placing the frame on the housing;
Inserting the platform into the frame,
Placing the display object on the frame, and powering the motor and at least one light source to simultaneously illuminate and rotate the display object.

  Optionally, the display object includes a solid glass rendition of candles, which includes a cylindrical body with a flame-like structure on top of it. The flame-like structure may be made of clear colorless glass or may be made of both yellow and red colored glass.

  Optionally, the method may further comprise filling a cavity in the display object with a colored liquid through opening and closing of the opening. The coloring solution may comprise an aqueous suspension of colored latex particles.

  The present invention provides an illumination device that is effective and efficient in operational use, which, due to its modular structure, provides easy reconfiguration and improved versatility. The lighting has an overall simple design that minimizes manufacturing costs and maximizes performance.

  Next, with reference to the accompanying drawings, a preferred embodiment of the present invention will be described as an example.

It is the figure which looked at the illuminating device according to this invention from the top. FIG. 2 is a cross-sectional view in an upright central plane through the apparatus of FIG. It is the figure which looked at the flame | frame of the apparatus of FIG. 1 from the top. FIG. 2 is a top view of the device of FIG. 1 partially exploded to show the housing. FIG. 2 is a top view of the apparatus of FIG. 1 partially disassembled to show a sheet. FIG. 2 is a view of the fixture of the apparatus of FIG. FIG. 2 is a view of a book support of the apparatus of FIG. FIG. 2 is a glass rendition of a candle supported on the apparatus of FIG. 1. FIG. 2 is a view of a glass tea bottle supported on the apparatus of FIG. 1. FIG. 6 is a cross-sectional view in an upright central plane through a lighting device according to another embodiment of the present invention.

  Referring to FIGS. 1 and 2, there is shown a lighting device, generally indicated by reference numeral 10, according to one embodiment of the present invention. The lighting device 10 includes a housing 12 that defines a housing chamber 13, a platform 14, at least one light source 15, a frame 16, and a motor 17 that rotates the platform 14.

  The housing 12 may be an assembly of two molded plastic parts 112,212. The first part 112 is generally at the top and is exposed to be visible during use. The cavity of the first part 112 defines the housing chamber 13. A leather layer may optionally be provided on the outer surface of the first part 112 to make the device more visually appealing. The second part 212 is fixed to the first part 112 and forms a closure for the lower end of the housing chamber 13. The housing 12 may include legs (not shown) on the second part 212 to support the housing 12 in a horizontal plane so that the central axis 18 is upright. As used herein, the term “axial” refers to a direction substantially parallel to the central axis 18. The term “radial” refers to a direction substantially perpendicular to the central axis 18. The term “circumferential” refers to the direction of an arc having a radius substantially perpendicular to the central axis 18.

  The first part 112 is joined by a ring wall forming an outer annular recess 21 having a generally upwardly opening concave surface 22 that extends circumferentially about the axis 18 and a generally frustoconical side wall 19 and A coaxial disk-shaped top 20 may be included. The at least one light source may include a number of LEDs 15 of different colors, each LED protruding through a respective opening in the top 20 of the housing. The motor 17 may be arranged in the housing 13 and a power source in the form of a battery 23 may be arranged in the housing chamber 13 as well.

  The platform 14 is substantially disc-shaped and may be formed of a translucent material so that the entire platform is configured to transmit light. A central through extension opening 25 may be provided in the shaft 18 to receive the end of the drive shaft 26. The platform 14 may further include a plurality of circular holes 28 of equal diameter extending between an upper face 31 (upper face) and a lower face 32 (lower face) of the platform 14. The platform 14 may further include a pair of passages 29 and 30 formed in the upper surface 31 that are tangential to and parallel to the virtual circle 27 on the upper surface 31. A small circular axial projection 33 may project from the upper surface 31 and be provided on the platform hub.

  The apparatus may further include a removable sheet 34 that rests on the top 20 of the housing 12 between the top 20 and the platform 14. The seat 34 has bearing elements in the form of balls 35, each ball 35 abutting the lower surface 32 of the platform 14 and supporting the platform 14 for independent rotation about the shaft 18 relative to the housing 12. The balls 35 may be arranged around two concentric circles. In FIG. 5, six balls 35 are arranged in the outer circle, and three angularly separated balls 35 are arranged in the inner circle. The ball 35 is preferably made of steel. In order to provide a greater degree of support, the removable seat 34 projects radially from the outer edge 36 of the upper portion 20 and the balls 35 at the maximum of the two concentric circles are cantilevered so that Arranged outside. A through extension opening is provided in the center of the removable seat 34 to receive the end of the drive shaft 26 and allow it to rotate freely. The removable sheet 34 may further include a plurality of through-extension lamp receiving openings positioned for alignment with the LED 15.

  The drive shaft 26 is supported to rotate about the upright shaft 18 and transmit torque from the motor 17 to the platform 14. The drive shaft 26 further includes a first gear 39 supported in and integrally formed with the blind opening 38 in the second half 212 of the housing. The output shaft 40 of the motor 17 is parallel to the drive shaft 36, the second gear 41 is fixed to the output shaft 40, and meshes with the first gear 39, so that the gears 39, 41 are connected between the motor 17 and the platform 14. Torque is transmitted between them.

  The frame 16 surrounds the periphery of the platform, and in addition to its protective function, it serves to diffuse incident light. The frame 16 may be formed of a translucent material with a generally frustoconical tapering outward and upward from a small rim 42 received in the annular recess 21 to a large rim 43. The frame 16 has a lower portion 66 with a frustoconical support surface 65 complementary to the concave surface 22 and configured to rest on the concave surface 22. Frame 16 may include an integral lug 68 configured to be received by a corresponding opening formed in support surface 65. This provides for automatic positioning of the frame 16 as it is dropped onto the housing 12. The small rim 42 is circular, and the large rim 43 is elliptical, and lies in a plane (not shown) inclined obliquely with respect to the axis 18 at an inclination angle 44.

  To accommodate different sized and shaped display objects, the lighting device 10 is modular and includes at least two different interchangeable frames and platforms. The two frames may include a frame 16 with a large tilt angle 44 and a second frame 116 that is interchangeable with the first frame 16 and has a tilt angle smaller than the angle 44. For compatibility, the second frame 116 shown in FIG. 3 has an equivalent lower portion 66 with a frustoconical support surface complementary to the concave surface 22. In addition to the smaller tilt angle, the maximum diameter dimension of the second frame 116 is smaller than the maximum diameter dimension of the frame 16. Sized to be surrounded by a smaller frame 116, a smaller circular platform (not shown) replaces the platform 14 for use in illuminating smaller display items. Good.

  In order to enhance the lighting effect, the device further comprises a plurality of interchangeable light changing members 45 in a thin annular form. The light changing member 45 has opposing parallel surfaces 46, 47, one of which abuts the top surface 31 and the other of them displays a display item supported by the platform. You may support. The axial projection 33 is received in the center of the light changing member 45 in order to position one light changing member 45. The light changing member 45 may be a metal ring painted in different colors, and a single light changing member 45 is selected and attached to the platform according to the desired effect.

  FIG. 4 illustrates the device with the platform 14 and the seat 34 and frame 16 removed, showing the first portion 112 of the housing 12, specifically the upper portion 20 and its protruding LEDs 15. . Eight of the LEDs 15 may be arranged near the upright axis 18 in the first circular array (array) and the other eight LEDs are in the first circular array (array). It may be arranged on the outside in the radial direction. The angular spacing of the LEDs may be equal within the first circular array and not equal within the second circular array.

  FIG. 5 shows the seat 34 attached to the housing 12 without the platform 14 and the frame 16, with the LEDs 15 visible through their respective lamp receiving openings.

  A mounting fixture 50 that cooperates with the circular hole 28 in the platform 14 is shown in FIG. Each fixture 50 has a fixture 51 in a form complementary to the circular hole so that the fixture 50 may be removably attached to the platform 14. The fixture 50 has differently oriented fastener arms 52, 53, 54 for releasable attachment of other members (not shown) for assembling a framework that supports the display item. Including.

  A book support 55 is shown in FIG. 7 resting on the platform 14. The book support 55 has a rectangular body 56 with a protruding flange 57 at the lower end. A leg 59 is hingedly fixed near the upper end 60 on the opposite side. Lower end 58 and legs 59 include parallel projecting feet, each foot being received in a respective one of passages 29, 30 to position book support 55 on the platform. It is configured.

  FIG. 8 shows an exemplary display object 70 in the form of a solid glass representation of a candle. It includes a cylindrical body 71 with a flame-like structure 72 on its top. Both the body 71 and the flame structure 72 may be made of transparent colorless glass. A cavity 73 located in the center of the cylindrical body 71 is filled with an aqueous suspension of red latex particles. When the LED 15 that is placed in the center of the platform 14 and illuminates the object 70 from the latex suspension shines red, the flame-like structure 72 will flicker red due to the use of alternating multi-colored lights. (flickering red glow)

  FIG. 9 shows an exemplary display object 75 in the form of a solid glass teapot. Display object 75 includes a generally round body 76 having a handle 77 extending from one end and a spout 78 extending from the other end. A lid 79 with a knob 80 (shaped like a tiger's head) is provided on the top of the body 76. The body 76 may be made of transparent colorless glass, and the lid 79 and knob 80 may be made of transparent colored (colored) glass. The cavity of the body 76 is filled with an aqueous suspension of red and blue latex particles. When placed in the center of the platform 14 and the LED 15 illuminates the object 75 from below, the latex suspension will have a mixed red and blue glow.

  The lighting device 10 has a modular structure and is easily disassembled in different configurations to accommodate various different types and sizes of display objects or to provide a table lamp when no display objects are present. And may be reassembled.

  First, one of the frames 16, 116 is selected and its lower portion 66 is dropped over the upper portion 20 into the annular recess 21 and the frame rests on the housing 12. Projections and complementary openings in the frame and housing 12 may be provided to angularly align the frame with respect to the axis 18. With the frames 16, 116 arranged in this way, one of the platforms 14 is inserted into the frame stacked on the removable seat 34 (the platform 14 is inserted into the frame 16 or smaller). Prior to the platform being inserted into the frame 116, the removable sheet 34 is directed to align the LED 15 with the lamp receiving opening and lowered onto the top 20. Next, the basic assembly supporting the display object is to select the light changing member 45 and place the light changing member 45 on the platform with the axial projection 33 received in the center of the light changing member 45. To complete. The display objects 70 and 75 may then be placed on the platform 14 and on the light changing member. A switch (not shown) may be provided in the housing 12 and connected to the power supply in the circuit so that activation of the switch simultaneously activates the motor and LED to illuminate and rotate the objects 70,75.

  Otherwise, depending on the object to be displayed, a framework (framework) may be assembled to support the object to be displayed, the framework having a fixed portion 51 fixed in the circular hole 28 of the platform 14. Includes mounting fixtures. If the book is to be displayed, the book support 55 is placed on the platform with its feet received in the passages 29, 30 before placing the book on the body 56 and the protruding flange 57. .

  FIG. 10 shows a lighting device, generally indicated by reference numeral 10 ', according to another embodiment of the present invention. In FIG. 10, an annular thrust bearing 90 is disposed between the annular surface on the lower surface of the platform 14 'and the upper surface 20' to support the rotation of the platform 14 '. A gap is formed between the hemispherical protrusion 35 'disposed on the sheet 34' and the lower surface of the platform 14 '. Thus, the support for the platform 14 'is located closer to the central axis 18' compared to the support in FIG. To lock the frame 16 'with the housing 12', male and female coupling configurations (not shown), for example, complementary protrusions and recesses, may be provided on the surface 22 'and the surface 65', respectively.

  A lid 92 with two holes is provided for each hole to receive the shaft of the respective gear 39 ', 41' so that the two gears 39 ', 41' are held together. The surface of the virtual circle 27 'on the upper surface 31' of the platform 14 'is raised so as to form an annular groove on the upper surface 31'. A suitably sized disk (not shown) with a mirror or golden surface may be mounted in the annular groove to change the play of light. Other parts of the illumination device 10 'are similar to other parts of the device 10 of FIG.

  It should be understood that the features of the present invention have been described by way of example only and modifications and additions can be made without departing from the scope thereof.

10. Illumination apparatus
10 'illumination apparatus
12 Housing (housing)
12 'housing
13 Housing chamber
14 platform
14 'platform
15 LEDs (LEDs)
16 frames / first frame
16 'frame
17 motor
18 Central axis / upright axis
18 'central axis
19 frusto-conical side walls
20 coaxial disc-like top
20 'top (top)
21 Annular recess
22 concave surface
22 'surface
23 battery
25 central through-extending opening
26 drive shaft
27 imaginary circle
27 'imaginary circle
28 circular apertures
29 channel
30 channel
31 upper face
31 'upper face
32 lower face / underside
33 circular axial projection
34 Demountable seat
34 'seat
35 balls
35 'hemispherical protrusions
36 outer edge
38 blind opening
39 First gear
39 'gear
40 output shaft
41 second gear
41 'gear
42 small rim
43 large rim
44 inclination angle
45 light-altering members
46 surface
47 surface
50 mounting fixture
51 fixing part
55 book support
56 body
57 projecting flange
58 lower end
59 Leg
60 upper end
65 support surface
65 'surface
66 lower part
68 lugs
70 display object
71 Cylindrical body
72 flame-like structure
73 cavity
75 display object
76 body
77 handle
78 spout
79 lid
80 Knob
90 annular thrust bearing
112 Plastic part / first part
116 second frame
212 plastic part / second part / second half

Claims (29)

A housing defining a housing chamber;
At least one platform supported by the housing, at least a portion of which is configured to transmit light;
At least one light source that emits light upward through the at least part of the rotating platform;
An annular recess on the exterior of the housing, the annular recess having a concave surface extending around an upright axis;
At least one frame configured to protrude from the housing and extend circumferentially around the platform, the support configured to be complementary to and rest on the concave surface At least one frame having a surface;
A motor that rotates the platform or the at least one light source about the upright axis;
A power source connected to the at least one light source and the motor;
Lighting device.   A removable seat further rests on the top of the housing between the top of the housing and the platform, the removable seat supporting the platform for independent rotation of the platform relative to the housing. The lighting device according to claim 1.   The lighting device of claim 2, wherein the removable seat includes a lamp receiving opening that receives the at least one light source and supports at least one bearing element, and the platform rests on the bearing element. .   The illumination according to claim 3, wherein the removable seat projects radially outward from an outer edge of the upper part of the housing, and the at least one bearing element is arranged outside the outer edge of the upper part of the housing. apparatus.   5. A lighting device according to any one of claims 2 to 4, wherein the at least one bearing element comprises an array of equivalent balls, each ball abutting against the lower surface of the platform.   6. The illumination device according to claim 5, wherein the array includes two concentric circles, and each of the balls is located on the two concentric circles.   The at least one frame has a generally frustoconical shape that tapers outward and upward from a small rim received in the annular recess to a large rim. The lighting device described in 1.   The lighting device according to claim 7, wherein the at least one frame is made of a translucent material.   9. Illumination according to claim 7 or 8, wherein the small rim is circular and the large rim is elliptical and lies in a plane inclined at an angle of inclination with respect to the axis of the frame. apparatus.   The at least one frame includes a first frame having a large tilt angle and a second frame that is replaceable with the first frame and has a small tilt angle, and the at least one platform includes: 10. A small circular platform configured to be surrounded by the first frame and a larger circular platform interchangeable with the first platform surrounded by the second frame. The lighting device described in 1.   11. A lighting device according to any one of claims 7 to 10, further comprising at least one light modifying member and an upper surface of the platform configured to support and position the light modifying member.   The at least one light modifying member comprises a thin annular member comprising opposing parallel surfaces, one of which abuts the top surface of the platform and the other may support a display item supported by the platform. The lighting device of claim 11, further comprising: an axial protrusion at the hub portion of the platform that is received in the center of the light changing member to position the light changing member.   13. The lighting device according to claim 11 or 12, wherein the at least one light changing member includes a plurality of thin metal rings painted in different colors.   14. A lighting device according to any one of claims 7 to 13, wherein the removable seat has a diameter larger than the diameter of the small rim.   The housing has a structure composed of two parts of molded plastic including a first part and a second part, and the upper part and the annular recess are formed on the first part. The first portion defines the housing chamber and the second portion is secured to the first portion to form a closure for the housing chamber. The illumination device according to any one of the above.   The lighting device further includes a drive shaft that rotates about the upright axis and is supported to transmit torque from the motor to the platform, the drive shaft being in the second half of the housing. The lighting device according to any one of claims 1 to 15, further comprising a first gear supported in a blind opening and integrally formed with the drive shaft.   The lighting device according to claim 16, wherein the motor includes an output shaft parallel to the drive shaft, and a second gear fixed to the output shaft and meshing with the first gear.   The at least one light source includes a plurality of LEDs, each LED protruding from the top of the housing and positioned for alignment with a respective lamp receiving opening in the seat, the LEDs being a number of different The lighting device according to any one of claims 2 to 17, which emits a color.   19. Illumination according to claim 18, wherein half of the LEDs are arranged in the first circular array near the upright axis, and half of the LEDs are arranged radially outside the first circular array. apparatus.   The lighting device according to claim 1, wherein the platform is formed of a translucent material.   21. The lighting device of claim 20, wherein the platform further comprises a plurality of circular holes of equal diameter extending between the top and bottom surfaces of the platform.   The lighting device further includes a plurality of mounting fixtures, each mounting fixture including a fixing portion configured to be complementary to the circular hole, so that the mounting fixture supports the display item. The lighting device of claim 21, wherein the lighting device may be removably attached to the platform.   The lighting device of claim 20, wherein the platform further includes a pair of parallel passages formed in the upper surface.   The lighting device further includes a book support comprising a rectangular body comprising a projecting flange at the lower end and a leg that is hingedly secured proximate the opposite upper end; 24. The lighting device of claim 23, wherein the lower end and the leg include parallel projecting feet, each configured to be received in a respective one of the passages.   25. A lighting device according to any one of the preceding claims, further comprising an object of crystal, bronze or glass supported on the platform and shining under illumination from the at least one light source.   26. The lighting device of claim 25, wherein the object is a solid glass rendition of a candle and includes a cylindrical body with a flame-like structure on top of it.   27. A lighting device according to claim 26, wherein the flame-like structure may be made of transparent colorless glass.   27. A lighting device according to claim 26, wherein the flame-like structure may be made of colored glass, preferably both yellow and red colored glass. The object is
a) a solid glass tea bottle filled with a colored latex suspension and / or balm comprising a lid with a tab in the shape of a tiger head, or
b) a glass bottle,
The lighting device according to claim 25.

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