LED light-emitting mechanism and light source lighting device

Abstract

The utility model provides an LED light-emitting mechanism and a light source lighting device. The LED light-emitting mechanism comprises a lamp panel, a first lamp bead, a second lamp bead, a third lamp bead and a fourth lamp bead, wherein the first lamp bead, the second lamp bead, the third lamp bead and the fourth lamp bead are arranged on the lamp panel in the length direction of the lamp panel in sequence. Wherein the first lamp bead is used for emitting white light, the second lamp bead is used for emitting blue light, the third lamp bead is used for emitting white light, and the fourth lamp bead is used for emitting green light; the second lamp bead comprises a first light-emitting part used for emitting blue light of the first wave band, a second light-emitting part used for emitting blue light of the second wave band and a third light-emitting part used for emitting blue light of the third wave band, and the first wave band, the second wave band and the third wave band are different. By adopting the technical scheme, compared with a conventional double-color scheme, the three-color scheme provided by the embodiment of the utility model has the advantages of lower cost, higher SSI fitting degree and wider full-power color temperature section range.

Description

Technical Field

[0001] The utility model relates to the technical field of light source lighting devices, and more specifically, to an LED light emitting mechanism and a light source lighting device. Background Art

[0002] In the existing photography field, for outdoor shooting, there are various lighting sources on the market, such as dual-color and multi-color. For indoor desktop workers, there are also many flat panel lights, but most of them are dual-color, with front or side emission. Desktop fill light requires the light to be soft enough, so most of them use side emission. In addition, because it is a desktop fill light, the requirements for blue light hazards are higher. Most products on the market use multi-band blue light to reduce the hazards of harmful blue light bands, but the cost and color temperature range will also be limited. Utility Model Content

[0003] The purpose of the utility model is to provide an LED light-emitting mechanism and a light source lighting device to solve the technical problems of existing two-color fill light, such as large blue light hazards, high cost and large color temperature range restrictions.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] In a first aspect, an LED lighting mechanism is provided, comprising:

[0006] A lamp board, a first lamp bead, a second lamp bead, a third lamp bead and a fourth lamp bead which are arranged on the lamp board and in sequence along the length direction of the lamp board; wherein the first lamp bead is used to emit white light, the second lamp bead is used to emit blue light, the third lamp bead is used to emit white light, and the fourth lamp bead is used to emit green light; the second lamp bead includes a first light-emitting portion for emitting blue light of a first band, a second light-emitting portion for emitting blue light of a second band and a third light-emitting portion for emitting blue light of a third band, and the first band, the second band and the third band are different.

[0007] By adopting the above technical solution, the three-color solution of this embodiment has a lower cost than the conventional two-color solution, has a higher SSI fitting degree, and has a wider full-power color temperature range.

[0008] In one embodiment, the first wavelength band is 407.5 nm-412.5 nm, the second wavelength band is 442.5 nm-447.5 nm, and the third wavelength band is 465 nm-470 nm.

[0009] By adopting the above technical solution, blue light uses a variety of blue light-emitting parts with different spectra to achieve a smooth spectrum in the 400-430nm range after combined light, avoiding excessively high blue light peaks, improving SSI fitting, and reducing blue light hazards; on the other hand, it allows blue light to avoid the 450nm band and mix evenly with purple light.

[0010] In one embodiment, the first light emitting portion, the second light emitting portion and the third light emitting portion are electrically connected in series.

[0011] By adopting the above technical solution, blue lamp beads with multiple different spectra of blue light can be connected in series using one control channel, and the voltage of each channel tends to be consistent, avoiding the problem of high and low voltage in the same circuit and reducing hardware troubles.

[0012] In one embodiment, the LED light-emitting mechanism further includes a substrate, the substrate is provided with a light-emitting cavity, the light-emitting cavity is provided with at least one side cavity wall, the side cavity wall faces the interior of the light-emitting cavity, the lamp board is provided on the side cavity wall, and the first lamp bead, the second lamp bead, the third lamp bead and the fourth lamp bead are used to emit light from the side cavity wall to the interior of the light-emitting cavity.

[0013] By adopting the above technical solution, the LED light-emitting mechanism is made into a side-lighting mechanism, which increases the softness of the light.

[0014] In one embodiment, the side cavity wall is sequentially arranged with a plurality of the lamp boards along its length direction, each of the lamp boards is provided with the first lamp bead, the second lamp bead, the third lamp bead and the fourth lamp bead, and two adjacent lamp boards are electrically connected.

[0015] By adopting the above technical solution, the thinness of the LED light-emitting mechanism is improved.

[0016] In one embodiment, the LED light-emitting mechanism further includes a reflective portion provided on the bottom cavity wall, and the reflective portion is used to reflect light in the light-emitting cavity.

[0017] By adopting the above technical solution, the light extraction rate in the light-emitting cavity is improved.

[0018] In one embodiment, the LED light emitting mechanism further includes a diffusion portion disposed in the light emitting cavity and opposite to the light reflecting portion, and the diffusion portion is used to diffuse the light in the light emitting cavity.

[0019] By adopting the above technical solution, the softness of the light emitted by the LED light emitting mechanism is further improved. In one embodiment, the LED light emitting mechanism further includes a light guide portion provided in the light emitting cavity, the light guide portion being used to guide the light in the light emitting cavity.

[0020] By adopting the above technical solution, the light in the light-emitting cavity is emitted in a directionally directed manner.

[0021] In one embodiment, the LED light emitting mechanism further includes a reflective portion, a diffuser portion, and a light guide portion, and the reflective portion, the diffuser portion, and the light guide portion are spaced apart from the light panel.

[0022] By adopting the above technical solution, the reliability of the LED light-emitting mechanism is improved.

[0023] In a second aspect, a light source lighting device is provided, comprising a lamp body and the above-mentioned LED light-emitting mechanism, wherein the LED light-emitting mechanism is arranged on the lamp body.

[0024] By adopting the above technical solution, in addition to having the advantages of the LED light-emitting mechanism of the above embodiment, the light source lighting device of this embodiment also has the advantage of less blue light damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 It is a three-dimensional structural diagram of the LED light-emitting mechanism provided by an embodiment of the utility model.

[0027] Figure 2 It is an exploded view of the LED light-emitting mechanism provided by an embodiment of the present utility model.

[0028] Figure 3 This is a three-dimensional structural diagram of the lamp board and lamp beads provided in an embodiment of the utility model.

[0029] Figure 4 It is a schematic diagram of the second lamp bead provided in an embodiment of the present utility model.

[0030] The reference numerals in the figures are:

[0031] 1. Light board; 2. First lamp bead; 3. Second lamp bead; 4. Third lamp bead; 5. Fourth lamp bead; 6. Base plate; 7. Reflective part; 8. Diffuser; 9. Light guide;

[0032] 31. First light-emitting portion; 32. Second light-emitting portion; 33. Third light-emitting portion; 61. Light-emitting cavity; 611. Side cavity wall. DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] It should be noted that when an element is referred to as being “fixed to” or “disposed on” another element, it may be directly located on the other element or indirectly located on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0035] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate that the device or element must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate relative importance or the number of technical features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined. The following is a more detailed description of the specific implementation of this utility model in conjunction with specific embodiments:

[0037] like Figures 1 to 3 As shown, an LED light-emitting mechanism provided by an embodiment of the present invention is used to be configured in a light source lighting device. This embodiment is used to provide a three-color light source for use as a fill light fixture. The price is lower than that of the full-spectrum two-color solution, and it can synthesize a light source lighting device with a wider color temperature range to meet the needs of soft fill light and low blue light hazards. This embodiment adds two bands of blue light to the full-spectrum single blue light, reduces the weight of harmful blue light, makes the spectrum smoother, and closer to the solar spectrum, and adds two colors to mix with it. At the same time, the consistency of the designed blue light internal voltage is guaranteed, and there will be no risk of high and low voltage. The mixed light is also relatively uniform, avoiding subsequent troubles for the hardware. The following is an explanation through specific implementation methods:

[0038] The LED light-emitting mechanism of this embodiment includes: a lamp board 1, a first lamp bead 2, a second lamp bead 3, a third lamp bead 4 and a fourth lamp bead 5 provided on the lamp board 1 and arranged in sequence along the length direction of the lamp board 1; wherein, the first lamp bead 2 is used to emit white light, the second lamp bead 3 is used to emit blue light, the third lamp bead 4 is used to emit white light, and the fourth lamp bead 5 is used to emit green light; the second lamp bead 3 includes a first light-emitting portion 31 for emitting blue light of a first band, a second light-emitting portion 32 for emitting blue light of a second band and a third light-emitting portion 33 for emitting blue light of a third band, and the first band, the second band and the third band are different.

[0039] Here, it can be understood that the lamp board 1 refers to a plate-shaped component for carrying lamp beads; the lamp board 1 is also provided with a circuit electrically connected to the lamp beads; the lamp board 1 defines a length direction, so that multiple lamp beads can be arranged in sequence along the length direction;

[0040] The first lamp bead 2 is a lamp bead for emitting white light; the first lamp bead 2 is arranged on the lamp board 1;

[0041] The second lamp bead 3 is a lamp bead for emitting blue light; the second lamp bead 3 is arranged on the lamp board 1;

[0042] The third lamp bead 4 is a lamp bead for emitting white light; the third lamp bead 4 is arranged on the lamp board 1;

[0043] The fourth lamp bead 5 is a lamp bead for emitting green light; the fourth lamp bead 5 is provided on the lamp board 1;

[0044] Please also refer to Figure 4 , wherein the second lamp bead 3 includes a first light-emitting part 31, a second light-emitting part 32 and a third light-emitting part 33; the first light-emitting part 31 is used to emit blue light of the first band, the second light-emitting part 32 is used to emit blue light of the second band, and the third light-emitting part 33 is used to emit blue light of the third band; in this way, the blue light emitted by the second lamp bead 3 is a mixture of blue lights of three different bands.

[0045] The lighting principle of the LED lighting mechanism of this embodiment is as follows:

[0046] In this embodiment, the three colors of the light source are white, green, and blue. The blue light is a mixture of three different wavelengths of blue light. Both white and green light have fluorescent colors formed by excitation of phosphors by a single chip. Due to the need for combined light calculations, the amount of white light is relatively high. Therefore, the lamp beads are arranged on the substrate 6 in groups of four: white light, blue light, white light, and green light. This prevents excessive blue light peaks, improves the SSI (Spectral Similarity Index), and reduces the harm of blue light. The light-emitting components of different wavelengths are integrated into a single lamp bead, and the voltage of each channel is consistent, avoiding high and low voltage issues in the same circuit, reducing hardware complexity and manufacturing costs. The blue light wavelength can be adjusted according to the measured spectrum. Furthermore, there is a G / M adjustment function. The G / M adjustment function of the LED mainly refers to achieving the desired lighting effect by adjusting the color temperature and brightness of the LED. This adjustment function is usually implemented through a specific driver IC and control system, allowing users to adjust the color temperature and brightness of the LED lamp as needed, thereby providing a more flexible and comfortable lighting environment.

[0047] It needs to be further explained that the first lamp bead 2 and the third lamp bead 4 both emit white light, the difference between the two is that the positions of the lamp beads are different; in addition, the white light of the first lamp bead 2 and the third lamp bead 4 can be warm white light, that is, orange light; or, the white light of the first lamp bead 2 and the third lamp bead 4 can also be cold white light.

[0048] By adopting the above technical solution, the three-color solution of this embodiment has a lower cost than the conventional two-color solution, has a higher SSI fitting degree, and has a wider full-power color temperature range.

[0049] In one embodiment, the first wavelength band is 407.5 nm-412.5 nm, the second wavelength band is 442.5 nm-447.5 nm, and the third wavelength band is 465 nm-470 nm.

[0050] Here, it can be understood that the peak wavelength of the blue light of the first light-emitting portion 31 is 407.5nm-412.5nm; the peak wavelength of the blue light of the second light-emitting portion 32 is 442.5nm-447.5nm; the peak wavelength of the blue light of the third light-emitting portion 33 is 465nm-470nm;

[0051] Preferably, the first wavelength band is 410 nm, the second wavelength band is 445 nm, and the third wavelength band is 467.5 nm.

[0052] By adopting the above technical solution, blue light uses a variety of blue light-emitting parts with different spectra to achieve a smooth spectrum in the 400-430nm range after combined light, avoiding excessively high blue light peaks, improving SSI fitting, and reducing blue light hazards; on the other hand, it allows blue light to avoid the 450nm band and mix evenly with purple light.

[0053] In one embodiment, the first light emitting portion 31 , the second light emitting portion 32 and the third light emitting portion 33 are electrically connected in series.

[0054] Here, it can be understood that the first light-emitting part 31 can be a first light-emitting lamp bead, the second light-emitting part 32 can be a second light-emitting lamp bead, the third light-emitting part 33 can be a third light-emitting lamp bead, and the second lamp bead 3 integrates the above three light-emitting parts and makes the three light-emitting parts electrically connected in series.

[0055] By adopting the above technical solution, blue lamp beads with multiple different spectra of blue light can be connected in series using one control channel, and the voltage of each channel tends to be consistent, avoiding the problem of high and low voltage in the same circuit and reducing hardware troubles.

[0056] In one embodiment, the LED light-emitting mechanism also includes a substrate 6, the substrate 6 is provided with a light-emitting cavity 61, the light-emitting cavity 61 is provided with at least one side cavity wall 611, the side cavity wall 611 faces the interior of the light-emitting cavity 61, the lamp board 1 is provided on the side cavity wall 611, and the first lamp bead 2, the second lamp bead 3, the third lamp bead 4 and the fourth lamp bead 5 are used to emit light from the side cavity wall 611 to the interior of the light-emitting cavity 61.

[0057] Here, it can be understood that when the LED light-emitting mechanism of this embodiment is configured in the light source lighting device, the light source lighting device can be used in the fill light scene. The fill light requires that the light must be soft enough, so most of them use side light. The LED light-emitting mechanism of this embodiment also includes a substrate 6, which is provided with a light-emitting cavity 61. The light-emitting cavity 61 refers to a cavity for emitting or reflecting light. The light-emitting cavity 61 is provided with at least one side cavity wall 611, which is used to enclose the light-emitting cavity 61. The side cavity wall 611 faces the inside of the light-emitting cavity 61. The lamp board 1 is provided on the side cavity wall 611, and the first lamp bead 2, the second lamp bead 3, The third lamp bead 4 and the fourth lamp bead 5 are arranged on the surface of the lamp board 1 facing the inside of the light-emitting cavity 61, and the first lamp bead 2, the second lamp bead 3, the third lamp bead 4 and the fourth lamp bead 5 are used to emit light toward the inside of the light-emitting cavity 61, thereby forming a side-emitting structure; it needs to be further explained that since the first lamp bead 2, the second lamp bead 3, the third lamp bead 4 and the fourth lamp bead 5 emit light from the side cavity wall 611 of the light-emitting cavity 61 toward the inside of the light-emitting cavity 61, the light-emitting cavity 61 is provided with a light-emitting surface, and the light emitted by the first lamp bead 2, the second lamp bead 3, the third lamp bead 4 and the fourth lamp bead 5 is reflected by the light-emitting cavity 61 and then emitted from the light-emitting surface, thereby forming side-emitting light.

[0058] By adopting the above technical solution, the LED light-emitting mechanism is made into a side-lighting mechanism, which increases the softness of the light.

[0059] In one embodiment, the side cavity wall 611 arranges multiple lamp boards 1 in sequence along its length direction, each lamp board 1 is provided with a first lamp bead 2, a second lamp bead 3, a third lamp bead 4 and a fourth lamp bead 5, and two adjacent lamp boards 1 are electrically connected.

[0060] Here, it can be understood that in order to make the LED light emitting mechanism thinner, a plurality of lamp panels 1 are arranged along the length direction of the side cavity wall 611 .

[0061] By adopting the above technical solution, the thinness of the LED light-emitting mechanism is improved.

[0062] In one embodiment, the light emitting cavity 61 is further provided with a bottom cavity wall, which is perpendicular to the side cavity wall 611 and parallel to the light emitting surface.

[0063] In one embodiment, the LED light-emitting mechanism further includes a reflective portion 7 provided on the bottom cavity wall, and the reflective portion 7 is used to reflect the light in the light-emitting cavity 61 .

[0064] Here, it can be understood that the light-emitting portion refers to a component for reflecting light, and the light-emitting portion includes but is not limited to reflective paper. In this embodiment, the thickness of the reflective paper is 0.25 mm.

[0065] By adopting the above technical solution, the light extraction rate in the light emitting cavity 61 is improved.

[0066] In one embodiment, the LED light emitting mechanism further includes a diffusion portion 8 disposed in the light emitting cavity 61 and opposite to the light reflecting portion 7 . The diffusion portion 8 is used to diffuse the light in the light emitting cavity 61 .

[0067] Here, it can be understood that the diffusion part 8 refers to a component used to diffuse light; the diffusion part 8 includes but is not limited to a light emitting plate; the diffusion part 8 is arranged in the light-emitting cavity 61, and the diffusion part 8 is arranged opposite to the reflective part 7. In this way, the diffusion part 8 is used to diffuse the light in the light-emitting cavity 61, including but not limited to the light directly emitted by the lamp beads and the light reflected by the reflective part 7.

[0068] By adopting the above technical solution, the softness of the light emitted by the LED light-emitting mechanism is further improved.

[0069] In one embodiment, the LED light-emitting mechanism further includes a light-guiding portion 9 disposed in the light-emitting cavity 61 , and the light-guiding portion 9 is used to guide the light in the light-emitting cavity 61 .

[0070] Here, it can be understood that the light guide part 9 refers to a component for guiding the emission direction of light; the light guide part 9 includes but is not limited to a light guide plate.

[0071] It needs to be further explained that the light guiding portion 9 can be provided between the light reflecting portion 7 and the diffusion portion 8 , so that the light in the light emitting cavity 61 is transmitted from the light guiding portion 9 to the diffusion portion 8 and finally emitted from the diffusion portion 8 .

[0072] By adopting the above technical solution, the light in the light-emitting cavity 61 is emitted in a directionally directed manner.

[0073] In one embodiment, the LED light emitting mechanism further includes a reflective portion 7 , a diffuser portion 8 and a light guide portion 9 , and the reflective portion 7 , the diffuser portion 8 and the light guide portion 9 are spaced apart from the light board 1 .

[0074] Here, it can be understood that the material of the lamp board 1 can be determined based on comprehensive factors such as cost, lamp body shape, and heat dissipation, such as FR4, FPC, and aluminum substrate 6. After the lamp beads are attached to the lamp board 1, the lamp board 1 can be fixed on the substrate 6, with the lamp beads facing the light-emitting cavity 61. Optical accessories such as reflective paper, light guide plate, and diffuser plate are placed in the interior of the light-emitting cavity 61 from the bottom aluminum substrate 6 upward. Among them, the optical accessories will expand when heated due to material problems. In order to protect the surface of the lamp beads from being damaged, a gap of 4mm should be reserved between the optical accessories and the lamp board 1 and the surface of the lamp beads. In addition, to prevent light leakage, the thickness of the reflective paper and the light guide plate should be flush with or slightly higher than the upper edge of the lamp beads. In the example of this application, the thickness of the reflective paper selected is 0.25mm, the thickness of the light guide plate is 4mm, the thickness of the diffuser plate is 1.5mm, and the overall height of the lamp board 1 is 6.5mm. The light panels 1 are directly connected with wires, leaving only one main circuit outlet for connecting to the hardware driver board. The hardware driver board is placed on the edge just below the light panel 1 and placed outside. Finally, the external structure is used to fix the internal optical accessories to prevent them from hitting the surface of the lamp beads.

[0075] By adopting the above technical solution, the reliability of the LED light-emitting mechanism is improved.

[0076] In a second aspect, a light source lighting device is provided, comprising a lamp body and the above-mentioned LED light-emitting mechanism, wherein the LED light-emitting mechanism is arranged on the lamp body.

[0077] By adopting the above technical solution, in addition to having the advantages of the LED light-emitting mechanism of the above embodiment, the light source lighting device of this embodiment also has the advantage of less blue light damage.

[0078] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An LED light-emitting mechanism, characterized in that: include: A lamp board (1), a first lamp bead (2), a second lamp bead (3), a third lamp bead (4) and a fourth lamp bead (5) provided on the lamp board (1) and arranged in sequence along the length direction of the lamp board (1); wherein the first lamp bead (2) is used to emit white light, the second lamp bead (3) is used to emit blue light, the third lamp bead (4) is used to emit white light, and the fourth lamp bead (5) is used to emit green light; the second lamp bead (3) comprises a first light-emitting portion (31) for emitting blue light of a first wavelength band, a second light-emitting portion (32) for emitting blue light of a second wavelength band and a third light-emitting portion (33) for emitting blue light of a third wavelength band, and the first wavelength band, the second wavelength band and the third wavelength band are different.

2. The LED light emitting mechanism according to claim 1, wherein: The first wavelength band is 407.5nm-412.5nm, the second wavelength band is 442.5nm-447.5nm, and the third wavelength band is 465nm-470nm.

3. The LED light emitting mechanism according to claim 1, wherein: The first light-emitting portion (31), the second light-emitting portion (32) and the third light-emitting portion (33) are electrically connected in series.

4. The LED light emitting mechanism according to claim 1, wherein: The LED light-emitting mechanism further comprises a substrate (6), wherein the substrate (6) is provided with a light-emitting cavity (61), wherein the light-emitting cavity (61) is provided with at least one side cavity wall (611), wherein the side cavity wall (611) faces the interior of the light-emitting cavity (61), and the lamp board (1) is provided on the side cavity wall (611), and the first lamp bead (2), the second lamp bead (3), the third lamp bead (4) and the fourth lamp bead (5) are used to emit light from the side cavity wall (611) to the interior of the light-emitting cavity (61).

5. The LED light emitting mechanism according to claim 4, wherein: The side cavity wall (611) is provided with a plurality of the lamp boards (1) in sequence along its length direction, each of the lamp boards (1) is provided with the first lamp bead (2), the second lamp bead (3), the third lamp bead (4) and the fourth lamp bead (5), and two adjacent lamp boards (1) are electrically connected.

6. The LED light emitting mechanism according to claim 4, wherein: The LED light-emitting mechanism further comprises a reflective portion (7) provided on the bottom cavity wall of the light-emitting cavity (61), and the reflective portion (7) is used to reflect light in the light-emitting cavity (61).

7. The LED lighting mechanism according to claim 6, wherein: The LED light-emitting mechanism further comprises a diffusion portion (8) disposed in the light-emitting cavity (61) and opposite to the light-reflecting portion (7), wherein the diffusion portion (8) is used to diffuse the light in the light-emitting cavity (61).

8. The LED lighting mechanism according to claim 4, wherein: The LED light-emitting mechanism further comprises a light-guiding portion (9) disposed in the light-emitting cavity (61), wherein the light-guiding portion (9) is used to guide light in the light-emitting cavity (61).

9. The LED lighting mechanism according to any one of claims 1 to 8, characterized in that: The LED light-emitting mechanism further comprises a reflective portion (7), a diffusion portion (8) and a light-guiding portion (9); the reflective portion (7), the diffusion portion (8) and the light-guiding portion (9) are spaced apart from the light board (1).

10. A light source lighting device, characterized in that: The invention comprises a lamp body and the LED light-emitting mechanism according to any one of claims 1 to 9, wherein the LED light-emitting mechanism is arranged on the lamp body.

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