Light spot adjusting mechanism and lighting device

Abstract

The utility model belongs to the technical field of illumination, and particularly relates to a light spot adjusting mechanism which is characterized in that a controller is arranged to control switches of a first light source ring, a second light source ring and a third light source ring of a light source assembly, so that different light rays penetrate through a TIR lens to obtain different light distribution angles; the problem that a variable light spot mechanism is complex in structure or low in light emitting efficiency is solved, light spot changes can be adjusted, meanwhile, the requirements for simple design and high light emitting efficiency of an illumination structure are met, and the production cost of the illumination structure can be effectively reduced; the utility model further provides the lighting device, through the arrangement of the light spot adjusting mechanism, on the basis that the light spots are adjustable, the lighting device is simple in structure, and the production cost of the lighting device is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of lighting, and in particular relates to a light spot adjustment mechanism and a lighting device. Background Art

[0002] At present, there are two ways to change the spot size of a single lamp:

[0003] One is to use a lens to achieve the change of the light spot by changing the distance between a single lens and the light source; or to use the misalignment of two lenses to achieve the change of the light spot. This solution requires the lens to be moved or rotated, and the structure of the lamp is complex.

[0004] The second is to use a lens plus a liquid crystal chip. This solution has no mechanical structure, but because of the liquid crystal chip, the luminous efficiency is reduced.

[0005] Based on the current variable light spot solution, there are defects of low luminous efficiency and complex structure. It is urgent to design a mechanism that can control the light spot with simple structure and high luminous efficiency. Utility Model Content

[0006] In order to address the deficiencies of the prior art, the utility model provides a light spot adjustment mechanism, which controls the switches of the first light source ring, the second light source ring and the third light source ring of the light source assembly by setting a controller, so that different light rays pass through the TIR lens to obtain different light distribution angles, thereby solving the problem that the variable light spot mechanism has a complex structure or low luminous efficiency, and realizes adjustable light spot change, while satisfying the simple design of the lighting structure and high luminous efficiency, and can effectively reduce the production cost of the lighting structure; the utility model also provides a lighting device, which, by setting the light spot adjustment mechanism, achieves a simple structure of the lighting device while satisfying the adjustable light spot, thereby reducing the production cost of the lighting device.

[0007] The technical effect to be achieved by the utility model is achieved through the following technical solutions:

[0008] A light spot adjustment mechanism, including a circuit board, a light source assembly and a TIR lens;

[0009] The circuit board includes a substrate and a controller disposed on the substrate, and the controller is electrically connected to the light source assembly;

[0010] The light source assembly includes, from the inside to the outside, a first light source component, a second light source component, and a third light source component, the first light source component, the second light source component, and the third light source component are all distributed in a ring shape on the substrate, and respectively form a first light source ring, a second light source ring, and a third light source ring with the center of the substrate as the center O, and the first light source ring, the second light source ring, and the third light source ring together form a light-emitting area;

[0011] The TIR lens is disposed on the light source assembly, and the light emitted from the light emitting area is emitted through the TIR lens to form a light spot.

[0012] In the utility model, the controller can independently control the opening or closing of the first light source ring, the second light source ring and the third light source ring. By controlling the light source assembly, light of different directions or different luminous fluxes can pass through the TIR lens, thereby realizing a light spot that can be adjusted by 15-50 degrees. Its structural design is relatively simple, which effectively reduces the manufacturing cost. Secondly, to adjust the change of the light spot, it is only necessary to control the controller in the circuit board, so that the light spot can be adjusted without moving the position of a single lens. The operation is simple and easy, and it is convenient for the rapid adjustment of the change of the light spot. And by setting a single TIR lens, the light in the light source component has better penetration, so the luminous efficiency is higher.

[0013] Wherein, one TIR lens is provided, and the lens can be a PMMA lens, a PC lens or a glass lens.

[0014] If the first light source ring is an integral light, the light will be damaged, which will cause failure to adjust the light spot. By setting a plurality of first light source components in a ring shape to form a first light source ring, when one of the first light source components is damaged, it can avoid a significant impact on the adjustment of the light spot, and the tolerance is strong. Among them, there are 5 first light source components, 10 second light source components, and 15 third light source components.

[0015] Furthermore, the first light source ring has a first diameter, and the first diameter is 3-7 mm. With this setting, the light of the first light source ring passes through the inner side of the TIR lens to adjust the light spot with a smaller angle, such as a light distribution angle of 15 degrees. The diameter of the first light source module can be flexibly set according to the light spot requirements of the actual lighting device, which is highly flexible.

[0016] Furthermore, in the top view interface of the light source assembly, the center O is connected to the center of the first light source to form a ray a, and the center O is connected to the center of the adjacent first light source to form a ray b, and the ray a and the ray b have a first angle α; the value range of the first angle α is 70-74°. Through this arrangement, the first light source components are evenly arranged, ensuring that the light of the first light source components evenly penetrates the TIR lens, ensuring the quality of the light spot, and having good light stability.

[0017] Furthermore, the second light source ring has a second diameter, and the second diameter is 8-12 mm. Through this setting, the light of the second light source ring passes through the middle position of the TIR lens to adjust the light spot at an intermediate angle, such as a light distribution angle of 36 degrees, to ensure the reliability of the light spot change adjustment.

[0018] Furthermore, in the top view interface of the light source assembly, a ray c is formed by connecting the circle center O and the center of the second light source, and a ray d is formed by connecting the circle center O and the center of the adjacent second light source, and the ray c and the ray d have a second angle β; the value range of the second angle β is 34-38°. Through this arrangement, the second light source components are evenly arranged, ensuring that the light of the second light source components evenly penetrates the TIR lens, ensuring the quality of the light spot, and having good light stability.

[0019] Furthermore, the third light source ring has a third diameter, and the first diameter is 13-17 mm. With this arrangement, the light of the third light source ring passes through the outer side of the TIR lens to adjust a larger angle of the light spot, such as a light distribution angle of 50 degrees, to ensure the reliability of the light spot change adjustment.

[0020] Furthermore, in the top view interface of the light source assembly, a ray e is formed by connecting the circle center O and the center of the third light source, and a ray f is formed by connecting the circle center O and the center of the adjacent third light source, and the ray e and the ray f have a third angle γ; the value range of the third angle γ is 22-26°. Through this arrangement, a plurality of third light sources are evenly arranged, ensuring that the light of the plurality of third light sources evenly penetrates the TIR lens, ensuring the quality of the light spot, and having good light stability.

[0021] Furthermore, the TIR lens includes a light incident portion, a reflective portion and a light output portion, the light incident portion is provided with a light incident cavity, the light source assembly is arranged at the bottom of the light incident cavity, and the light emitted by the light source assembly is emitted through the light incident portion, the reflective portion and the light output portion to form a light spot.

[0022] Furthermore, when the controller controls the first light source ring to emit light alone, and the second light source and the third light source ring do not emit light, the light distribution angle of the light spot is 14-16°.

[0023] When the controller controls the first light source ring and the second light source ring to emit light at the same time and the third light source ring does not emit light, the light distribution angle of the light spot is 15-36°; wherein, the light flux ratio of the first light source ring and the second light source ring can be adjusted to control the light distribution angle, and when the light flux ratio of the second light source ring is higher, the light distribution angle of the light spot is larger.

[0024] The controller controls the first light source ring, the second light source ring and the third light source ring to emit light simultaneously, and the light distribution angle of the light spot is 15-50°; wherein, when the luminous flux proportion of the second light source ring and the third light source ring is higher, the light distribution angle of the light spot is larger.

[0025] By controlling the opening or closing of the first light source ring, the second light source ring and the third light source ring, the switching of light spots with different light distribution angles can be flexibly achieved, and the operation is simple and fast.

[0026] The lighting device includes the above-mentioned light spot adjustment mechanism, which realizes that the structure of the lighting device is simple and the production cost of the lighting device is reduced while satisfying the requirement that the light spot can be adjusted.

[0027] Based on the above technical solution, the technical effects achieved by the utility model are:

[0028] (1) The controller can independently control the opening or closing of the first light source ring, the second light source ring and the third light source ring. By controlling the light source assembly, light of different directions or different light fluxes can pass through the TIR lens, thereby achieving a light spot that can be adjusted by 15-50 degrees. The structure design of the light spot adjustment mechanism is simple, which effectively reduces the manufacturing cost;

[0029] (2) To adjust the light spot change, you only need to control the controller in the circuit board, so that the light spot can be adjusted without moving the single lens. The operation is simple and easy, and it is convenient for rapid adjustment of the light spot change;

[0030] (3) By setting a single TIR lens, the light in the light source component has better penetration and high luminous efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of Example 1;

[0032] Figure 2 It is a cross-sectional structural schematic diagram of Example 1;

[0033] Figure 3 This is a schematic diagram showing the top view of the light source assembly in Example 1;

[0034] Figure 4 A schematic diagram showing a first light source ring in a top view in Example 1;

[0035] Figure 5 This is another schematic diagram showing the first light source ring in embodiment 1 from a top view;

[0036] Figure 6 A schematic diagram showing a top view of the second light source ring in Example 1;

[0037] Figure 7 It is another schematic diagram showing the second light source ring in embodiment 1 from a top view;

[0038] Figure 8 A schematic diagram showing a top view of the third light source ring in Example 1;

[0039] Fig. 9This is another top view schematic diagram showing the third light source ring in Embodiment 1;

[0040] Fig.10 A schematic diagram showing the light direction of a 15-degree light spot in Example 2;

[0041] Fig.11 A schematic diagram showing the light direction of a 15-36 degree light spot in Example 2;

[0042] Fig.12 This is a schematic diagram showing the light direction of the 15-50 degree light spot in Example 2.

[0043] Markings in the figure: 1, circuit board, 11, substrate, 12, controller; 2, light source assembly, 21, first light source ring, 211, first light source component, 212, first diameter, a, ray, b, ray, α, first angle, 22, second light source ring, 221, second light source component, 222, second diameter, c, ray, d, ray, β, second angle, 23, third light source ring, 231, third light source component, 232, third diameter, e, ray, f, ray, γ, third angle; 3, TIR lens, 31, light incident part, 311, light incident cavity, 32, reflecting part, 33, light output part; O, center of circle. DETAILED DESCRIPTION

[0044] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively in conjunction with the accompanying drawings and specific embodiments. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0045] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0046] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply 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 on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0048] Example 1

[0049] like Figure 1-Figure 3 As shown, the light spot adjustment mechanism includes a circuit board 1, a light source assembly 2 and a TIR lens 3;

[0050] The circuit board 1 includes a substrate 11 and a controller 12 disposed on the substrate 11, and the controller 12 is electrically connected to the light source assembly 2;

[0051] The light source assembly 2 includes, from the inside to the outside, a first light source component 211, a second light source component 221 and a third light source component 231. The first light source component 211, the second light source component 221 and the third light source component 231 are all distributed in a ring shape on the substrate 11, and respectively form a first light source ring 21, a second light source ring 22 and a third light source ring 23 with the center of the substrate 11 as the center O. The first light source ring 21, the second light source ring 22 and the third light source ring 23 jointly form a light-emitting area;

[0052] The TIR lens 3 is disposed on the light source assembly 2 , and the light emitted from the light emitting area is emitted through the TIR lens 3 and forms a light spot.

[0053] In the present invention, the controller 12 can independently control the opening or closing of the first light source ring 21, the second light source ring 22 and the third light source ring 23. By controlling the light source assembly 2, light of different directions or different luminous fluxes can pass through the TIR lens 3, thereby realizing a light spot that can be adjusted by 15-50 degrees. Its structural design is relatively simple, which effectively reduces the manufacturing cost. Secondly, to adjust the change of the light spot, it is only necessary to control the controller 12 in the circuit board 1, so that the light spot can be adjusted without moving the position of a single lens. The operation is simple and easy, and it is convenient for the rapid adjustment of the change of the light spot. And by setting a single TIR lens 3, the light in the light source component has better penetration, so the luminous efficiency is higher.

[0054] Among them, one TIR lens 3 is provided. The lens can be a PMMA lens, a PC lens or a glass lens.

[0055] If the first light source ring 21 is an integral light, the light will be damaged, which will cause failure to adjust the light spot. By arranging a plurality of first light source components 211 in a ring shape to form the first light source ring 21, when one of the first light source components 211 is damaged, it can avoid a significant impact on the adjustment of the light spot, and the tolerance is strong. Among them, there are 5 first light source components 211, 10 second light source components 221, and 15 third light source components 231.

[0056] like Figure 4 As shown, the first light source ring 21 has a first diameter 212, and the first diameter 212 is 5 mm. Through this setting, the light of the first light source ring 21 passes through the inner side of the TIR lens 3 to adjust the light spot with a smaller angle, such as a light distribution angle of 15 degrees. And the diameter of the first light source module can be flexibly set according to the light spot requirements of the actual lighting device, which is highly flexible.

[0057] like Figure 5 As shown, in the top view interface of the light source assembly 2, a ray a is formed by connecting the center O and the center of the first light source element 211, and a ray b is formed by connecting the center O and the center of the adjacent first light source element 211. The ray a and the ray b have a first angle α; the value range of the first angle α is 72°. Through this setting, the first light source elements 211 are evenly arranged, ensuring that the light of the first light source elements 211 evenly penetrates the TIR lens 3, ensuring the quality of the light spot, and the light stability is good.

[0058] like Figure 6 As shown, the second light source ring 22 has a second diameter 222, and the second diameter 222 is 10 mm. Through this setting, the light of the second light source ring 22 passes through the middle position of the TIR lens 3 to adjust the light spot at an intermediate angle, such as a light distribution angle of 36 degrees, to ensure the reliability of the light spot change adjustment.

[0059] like Figure 7As shown, in the top view interface of the light source assembly 2, a ray c is formed by connecting the center O and the center of the second light source element 221, and a ray d is formed by connecting the center O and the center of the adjacent second light source element 221. The ray c and the ray d have a second angle β; the value range of the second angle β is 36°. Through this arrangement, the plurality of second light source elements 221 are evenly arranged, ensuring that the light of the plurality of second light source elements 221 evenly penetrates the TIR lens 3, ensuring the quality of the light spot, and having good light stability.

[0060] like Figure 8 As shown, the third light source ring 23 has a third diameter 232, and the first diameter 212 is 15 mm. With this arrangement, the light of the third light source ring 23 passes through the outer side of the TIR lens 3 to adjust the light spot at a larger angle, such as a light distribution angle of 50 degrees, to ensure the reliability of the light spot change adjustment.

[0061] like Fig. 9 As shown, in the top view interface of the light source assembly 2, a ray e is formed by connecting the center O and the center of the third light source element 231, and a ray f is formed by connecting the center O and the center of the adjacent third light source element 231. The ray e and the ray f have a third angle γ; the value range of the third angle γ is 24°. Through this setting, the third light source elements 231 are evenly arranged, ensuring that the light of the third light source elements 231 evenly penetrates the TIR lens 3, ensuring the quality of the light spot, and the light stability is good.

[0062] Example 2

[0063] In one embodiment, the TIR lens 3 includes a light incident portion 31, a reflective portion 32 and a light emitting portion 33. The light incident portion 31 is provided with a light incident cavity 311. The light source component 2 is disposed at the bottom of the light incident cavity 311. The light emitted by the light source component 2 is emitted through the light incident portion 31, the reflective portion 32 and the light emitting portion 33 to form a light spot.

[0064] like Fig.10 As shown, when the controller 12 controls the first light source ring 21 to emit light alone, and the second light source and the third light source ring 23 do not emit light, the light distribution angle of the light spot is 15°.

[0065] like Fig.11 As shown, when the controller 12 controls the first light source ring 21 and the second light source ring 22 to emit light at the same time and the third light source ring 23 does not emit light, the light distribution angle of the light spot is 15-36°; wherein, the light flux ratio of the first light source ring 21 and the second light source ring 22 can be adjusted to control the light distribution angle, and when the light flux ratio of the second light source ring 22 is higher, the light distribution angle of the light spot is larger.

[0066] like Fig.12As shown, the controller 12 controls the first light source ring 21, the second light source ring 22 and the third light source ring 23 to emit light simultaneously, and the light distribution angle of the light spot is 15-50°; wherein, when the luminous flux proportion of the second light source ring 22 and the third light source ring 23 is higher, the light distribution angle of the light spot is larger.

[0067] By controlling the opening or closing of the first light source ring 21 , the second light source ring 22 and the third light source ring 23 , the switching of light spots with different light distribution angles can be flexibly achieved, and the operation is simple and fast.

[0068] Example 3

[0069] The lighting device includes the above-mentioned light spot adjustment mechanism, which realizes that the structure of the lighting device is simple and the production cost of the lighting device is reduced while satisfying the requirement that the light spot can be adjusted.

[0070] In summary, the utility model has at least the following benefits: by setting a circuit board to control the light source assembly, different light rays pass through the TIR lens to obtain different light distribution angles, thereby solving the problem of complex structure or low luminous efficiency of the variable light spot mechanism, realizing adjustable light spot change, and at the same time satisfying the simple design of the lighting structure and high luminous efficiency, which can effectively reduce the production cost of the lighting structure; the utility model also provides a lighting device, which, by setting a light spot adjustment mechanism, achieves a simple structure of the lighting device while satisfying the adjustable light spot, thereby reducing the production cost of the lighting device.

[0071] The above contents are merely examples and illustrations of the structure of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these obvious replacement forms all belong to the protection scope of the utility model.

Claims

1. A light spot adjustment mechanism, characterized in that: Includes circuit board, light source assembly and TIR lens; The circuit board includes a substrate and a controller disposed on the substrate, and the controller is electrically connected to the light source assembly; The light source assembly includes, from the inside to the outside, a first light source component, a second light source component, and a third light source component, the first light source component, the second light source component, and the third light source component are all distributed in a ring shape on the substrate, and respectively form a first light source ring, a second light source ring, and a third light source ring with the center of the substrate as the center O, and the first light source ring, the second light source ring, and the third light source ring together form a light-emitting area; The TIR lens is disposed on the light source assembly, and the light emitted from the light emitting area is emitted through the TIR lens to form a light spot.

2. The light spot adjustment mechanism according to claim 1, characterized in that: The first light source ring has a first diameter, and the first diameter is 3-7 mm.

3. The light spot adjustment mechanism according to claim 2, characterized in that: In the top-view interface of the light source assembly, a ray a is formed by connecting the center O and the center of the first light source component, and a ray b is formed by connecting the center O and the center of the adjacent first light source component. The ray a and the ray b have a first angle α; the value range of the first angle α is 70-74°.

4. The light spot adjustment mechanism according to claim 1, characterized in that: The second light source ring has a second diameter, and the second diameter is 8-12 mm.

5. The light spot adjustment mechanism according to claim 4, characterized in that: In the top-view interface of the light source assembly, a ray c is formed by connecting the center O and the center of the second light source component, and a ray d is formed by connecting the center O and the center of the adjacent second light source component. The ray c and the ray d have a second angle β; the value range of the second angle β is 34-38°.

6. The light spot adjustment mechanism according to claim 1, characterized in that: The third light source ring has a third diameter, and the first diameter is 13-17 mm.

7. The light spot adjustment mechanism according to claim 6, characterized in that: In the top-view interface of the light source assembly, a ray e is formed by connecting the center O and the center of the third light source component, and a ray f is formed by connecting the center O and the center of the adjacent third light source component. The ray e and the ray f have a third angle γ. The value range of the third angle γ is 22-26°.

8. The light spot adjustment mechanism according to claim 1, characterized in that: The TIR lens includes a light incident portion, a reflective portion and a light emitting portion, the light incident portion is provided with a light incident cavity, the light source assembly is arranged at the bottom of the light incident cavity, and the light emitted by the light source assembly is emitted through the light incident portion, the reflective portion and the light emitting portion to form a light spot.

9. The light spot adjustment mechanism according to claim 8, characterized in that: When the controller controls the first light source ring to emit light alone, and the second light source and the third light source ring do not emit light, the light distribution angle of the light spot is 14-16°; When the controller controls the first light source ring and the second light source ring to emit light simultaneously and the third light source ring does not emit light, the light distribution angle of the light spot is 15-36°; The controller controls the first light source ring, the second light source ring and the third light source ring to emit light simultaneously, and the light distribution angle of the light spot is 15-50°.

10. A lighting device, characterized in that: It comprises the light spot adjustment mechanism described in any one of claims 1-9.

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