Optical structure and lamp

Abstract

The invention provides an optical structure and a lamp. The optical structure comprises a cover body assembly which is provided with an accommodating groove; the lamp panel assembly is arranged in the containing groove, a first included angle theta is formed between the lamp panel assembly and the plane where a groove opening of the containing groove is located, the first included angle theta is larger than or equal to 90 degrees, the groove wall face of the containing groove is provided with a light reflecting face, and the light reflecting face is configured to reflect light emitted by the lamp panel assembly to the groove opening. The reflective surface is provided with a first end and a second end which are oppositely arranged, the lamp panel assembly is located on the side, away from the second end, of the first end, and the minimum distance between the reflective surface and the plane where the notch is located is gradually reduced from the first end to the second end. The problem that in the prior art, a lamp is prone to generating glare is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of lighting equipment, and in particular to an optical structure and a lamp. Background Art

[0002] With the rapid development of LED (Light Emitting Diode) lighting technology, LED lamps have become the most important lighting products on the market due to their high efficiency, energy saving and environmental protection. The requirements and performance of LED lamps are getting higher and higher, and the requirements for light utilization are also getting higher and higher. For example, the most common direct-down lighting method in table lamps can achieve good lighting effects through optical structures, but the utilization of light efficiency and comfort is not satisfactory. The direct-down lighting lamp has the highest brightness directly below the lamp bead, while the brightness is low at a distance from the lamp bead. There is an uneven brightness distribution, which is prone to glare, causing visual discomfort to users. Summary of the invention

[0003] The main purpose of the present invention is to provide an optical structure and a lamp to solve the problem that the lamp in the prior art is prone to glare.

[0004] In order to achieve the above object, according to one aspect of the present invention, an optical structure is provided, comprising:

[0005] A cover assembly, wherein the cover assembly has a receiving groove;

[0006] A light board assembly, wherein the light board assembly is arranged in a receiving groove, and the light board assembly forms a first angle θ with a plane where the slot of the receiving groove is located, the first angle θ is greater than or equal to 90 degrees, the slot wall of the receiving groove has a reflective surface, the reflective surface is configured to reflect light emitted from the light board assembly to the slot, the reflective surface has a first end and a second end that are relatively arranged, the light board assembly is located on a side of the first end away from the second end, and the minimum distance between the reflective surface and the plane where the slot is located gradually decreases from the first end to the second end.

[0007] Furthermore, the reflective surface includes at least two reflective sub-surfaces with different inclination angles.

[0008] Furthermore, the reflective surface includes at least a first reflective sub-surface, a second reflective sub-surface and a third reflective sub-surface connected in sequence from the first end to the second end, the first reflective sub-surface is configured to reflect a first portion of light emitted by the light panel assembly to the notch; the second reflective sub-surface is configured to reflect a second portion of light emitted by the light panel assembly to the notch; and the third reflective sub-surface is configured to reflect a third portion of light emitted by the light panel assembly to the notch.

[0009] Further, the first reflective sub-surface, the second reflective sub-surface and the third reflective sub-surface have different inclination angles.

[0010] Further, the first inclination angle ɑ1 of the first reflecting sub-surface is smaller than the second inclination angle ɑ2 of the second reflecting sub-surface, and the second inclination angle ɑ2 of the second reflecting sub-surface is smaller than the third inclination angle ɑ3 of the third reflecting sub-surface.

[0011] Further, the angle difference between the second inclination angle ɑ2 and the first inclination angle ɑ1 is a first difference, the angle difference between the third inclination angle ɑ3 and the second inclination angle ɑ2 is a second difference, and the first difference is equal to the second difference.

[0012] Furthermore, the first difference and the second difference are greater than or equal to 3 degrees and less than or equal to 25 degrees.

[0013] Furthermore, the first inclination angle ɑ1 of the first reflecting sub-surface is greater than or equal to 2 degrees and less than or equal to 8 degrees; the second inclination angle ɑ2 of the second reflecting sub-surface is greater than or equal to 12 degrees and less than or equal to 18 degrees; the third inclination angle ɑ3 of the third reflecting sub-surface is greater than or equal to 22 degrees and less than or equal to 28 degrees.

[0014] Furthermore, the light point of the light panel assembly is the center, the light parallel to the plane where the light panel assembly is located and transmitted in the direction away from the slot is 0 degrees, and the light parallel to the plane where the light panel assembly is located and transmitted in the direction of the slot is 180 degrees.

[0015] The angle of the first part of the light rays is greater than or equal to 7 degrees and less than 77 degrees;

[0016] The angle of the second part of light rays is greater than or equal to 77 degrees and less than 97 degrees;

[0017] The angle of the third portion of light rays is greater than or equal to 97 degrees and less than 107 degrees.

[0018] Furthermore, the reflectivity of the reflective surface is greater than or equal to 90%.

[0019] Furthermore, the first angle θ is greater than 90 degrees and less than or equal to 110 degrees.

[0020] Furthermore, the optical structure also includes a diffusion plate, which is arranged at the notch, and the light panel assembly is arranged at an angle to the diffusion plate.

[0021] Furthermore, the cover assembly includes:

[0022] A cover body, wherein the cover body has a receiving groove;

[0023] Reflective paper is arranged in contact with the bottom surface of the receiving groove, and the surface of the reflective paper facing away from the bottom surface of the receiving groove is a reflective surface.

[0024] Furthermore, the cover body comprises:

[0025] A cover body, wherein the cover body has an opening and a receiving cavity communicated with the opening;

[0026] The support plate is arranged in the accommodating cavity and connected to the cavity wall of the accommodating cavity. The support plate, the cover body and the opening form an accommodating groove. The opening is the notch of the accommodating groove. The reflective paper is arranged on the side of the support plate facing the opening.

[0027] Furthermore, the accommodating cavity includes a first side wall and a second side wall that are arranged opposite to each other, the first side wall has a limiting protrusion, the two ends of the support plate are respectively connected to the first side wall and the second side wall, the connection point between the support plate and the first side wall is located on the side of the limiting protrusion away from the first side wall, a first limiting groove is formed between the support plate and the limiting protrusion, the lamp board assembly is close to the first side wall relative to the second side wall, the first side wall has a first limiting rib extending toward the second side wall, the surface of the first limiting rib on the side away from the groove has a second limiting groove, and the opposite ends of the light board assembly are respectively located in the first limiting groove and the second limiting groove.

[0028] Furthermore, the first limiting rib has a third limiting groove on the side facing the second side wall, the second side wall has a second limiting rib extending toward the first side wall, a fourth limiting groove is formed between the second limiting rib and the support plate, and the optical structure also includes a diffusion plate, and the opposite sides of the diffusion plate are respectively located in the third limiting groove and the fourth limiting groove.

[0029] According to another aspect of the present invention, a lamp is provided, comprising the above optical structure.

[0030] Applying the technical solution of the present invention, the optical structure includes a cover body assembly and a light board assembly, the cover body assembly has a receiving groove; the light board assembly is arranged in the receiving groove, and the light board assembly forms a first angle θ with a plane where the notch of the receiving groove is located, the first angle θ is greater than or equal to 90 degrees, the groove wall surface of the receiving groove has a reflective surface, the reflective surface is configured to reflect the light emitted by the light board assembly to the notch, the reflective surface has a first end and a second end arranged oppositely, the light board assembly is located on the side of the first end away from the second end, and the minimum distance between the reflective surface and the plane where the notch is located gradually decreases from the first end to the second end.

[0031] By setting the plane where the light panel assembly and the notch of the receiving groove are located at an obtuse angle, the light emitted by the light panel assembly is effectively reduced from directly irradiating the notch, reducing the generation of direct light, and helping to reduce glare. In addition, the present invention is also provided with a reflective surface, which can reflect the light emitted by the light panel assembly to the notch, while providing lighting, reducing the light emitted by the light panel assembly directly emitting through the notch, effectively reducing the generation of glare. In addition, the minimum distance between the reflective surface and the plane where the notch is located in the present invention gradually decreases from the first end to the second end, which is conducive to improving the reflection efficiency of the reflective surface on the light emitted by the light panel assembly, thereby effectively reducing the generation of glare. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0033] Figure 1 A schematic diagram of the overall structure of an optical structure in an optional embodiment of the present invention is shown;

[0034] Figure 2 Shows Figure 1 A cross-sectional view of an optical structure at an angle;

[0035] Figure 3 Shows Figure 1 Schematic diagram of light transmission in optical structure;

[0036] Figure 4 Shows Figure 2 Schematic diagram of the positional relationship between the middle cover assembly, the light panel assembly, and the diffuser plate;

[0037] Figure 5 Shows Figure 4 Schematic diagram of the angle at which the reflective paper in the middle receives the light from the light panel assembly;

[0038] Figure 6 Shows Figure 4 A light path diagram of the light reflected by the first reflector surface;

[0039] Figure 7 Shows Figure 4 A light path diagram of the light reflected by the second reflector surface;

[0040] Figure 8 Shows Figure 4 Light path diagram of light reflected from the third reflector surface;

[0041] Fig. 9 A schematic diagram of the optical structure in an optional embodiment of the present invention is shown.

[0042] The above drawings include the following reference numerals:

[0043] 10. hood assembly; 11. hood; 111. hood body; 112. opening; 113. accommodating cavity; 114. supporting plate; 1141. first plate segment; 1142. second plate segment; 1143. third plate segment; 1144. fourth plate segment; 1145. fifth plate segment; 115. first side wall; 116. second side wall; 117. first limiting rib; 118. second limiting rib; 119. limiting protrusion; 12. reflective paper; 20. accommodating groove; 2 1. Notch; 22. Reflective surface; 221. First end; 222. Second end; 223. First reflective sub-surface; 224. Second reflective sub-surface; 225. Third reflective sub-surface; 23. Groove bottom; 30. Lamp board assembly; 31. Lamp board; 32. Lamp beads; 40. Diffuser plate; 50. First limiting groove; 60. Second limiting groove; 70. Third limiting groove; 80. Fourth limiting groove; 90. Fixed bracket; 100. Plane; 110. Limiting end. DETAILED DESCRIPTION

[0044] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0045] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0046] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0047] In order to solve the problem that lamps in the prior art are prone to glare, the present invention provides an optical structure and a lamp.

[0048] like Figures 1 to 9As shown, the optical structure includes a cover body assembly 10 and a light board assembly 30, the cover body assembly 10 has a receiving groove 20; the light board assembly 30 is arranged in the receiving groove 20, and the light board assembly 30 forms a first angle θ with the plane 100 where the notch 21 of the receiving groove 20 is located, the first angle θ is greater than or equal to 90 degrees, the groove wall surface of the receiving groove 20 has a reflective surface 22, the reflective surface 22 is configured to reflect the light emitted by the light board assembly 30 to the notch 21, the reflective surface 22 has a first end 221 and a second end 222 arranged oppositely, the light board assembly 30 is located on the side of the first end 221 away from the second end 222, and the minimum distance between the reflective surface 22 and the plane 100 where the notch 21 is located gradually decreases from the first end 221 to the second end 222.

[0049] By setting the light panel assembly 30 and the plane 100 where the notch of the receiving groove 20 is located at an obtuse angle, the light emitted by the light panel assembly 30 is effectively reduced from directly irradiating the notch 21, reducing the generation of direct light, and helping to reduce glare. In addition, the present invention is also provided with a reflective surface 22, which can reflect the light emitted by the light panel assembly 30 to the notch 21, while providing lighting, reducing the light emitted by the light panel assembly 30 from being directly emitted through the notch 21, and effectively reducing the generation of glare. In addition, the minimum distance between the reflective surface 22 and the plane 100 where the notch 21 is located in the present invention gradually decreases from the first end 221 to the second end 222, which is conducive to improving the reflection efficiency of the reflective surface 22 on the light emitted by the light panel assembly 30, thereby effectively reducing the generation of glare.

[0050] It should be noted that the light board assembly 30 and the plane 100 where the notch 21 of the receiving groove 20 is located are arranged at an obtuse angle, which means that the angle between the light board assembly 30 and the notch 21 area is an obtuse angle, which can reduce the light emitted by the light board assembly 30 from being directly emitted through the notch 21. In addition, since the first angle θ is greater than or equal to 90 degrees, it is beneficial for more light to be emitted to the reflective surface 22, and the minimum distance between the reflective surface 22 and the plane 100 where the notch 21 is located is gradually reduced from the first end 221 to the second end 222, so that more light can be reflected.

[0051] In some alternative embodiments, see Figure 4 , the first angle θ is greater than 90 degrees and less than or equal to 110 degrees. If the first angle θ is less than 90 degrees, the light emitted by the light panel assembly 30 is directly emitted from the notch 21, which is prone to glare. If the first angle θ is greater than 110 degrees, more light cannot be reflected to the notch 21, thereby reducing the lighting brightness and the utilization rate of light energy. Limiting the first angle θ to a range of 90 to 110 degrees can reduce the generation of glare while ensuring the utilization rate of light energy.

[0052] In some optional embodiments, the reflective surface 22 includes at least two reflective sub-surfaces with different inclination angles. This arrangement enables different reflective sub-surfaces to reflect light within different angle ranges, which is beneficial to improving the utilization rate of light energy. For example, Fig. 9 In the specific embodiment shown, the reflective surface 22 includes only two reflective sub-surfaces. Figure 4 In the specific embodiment shown, the reflective surface 22 includes three reflective sub-surfaces. The number of the reflective sub-surfaces is not specifically limited, as long as the reflective sub-surfaces can reflect light to the notch 21.

[0053] In some alternative embodiments, see Figure 4 The reflective surface 22 at least includes a first reflective sub-surface 223, a second reflective sub-surface 224 and a third reflective sub-surface 225 connected in sequence from the first end 221 to the second end 222. The first reflective sub-surface 223 is configured to reflect the first part of the light emitted by the light board assembly 30 to the notch 21; the second reflective sub-surface 224 is configured to reflect the second part of the light emitted by the light board assembly 30 to the notch 21; the third reflective sub-surface 225 is configured to reflect the third part of the light emitted by the light board assembly 30 to the notch 21. By providing the first reflective sub-surface 223, the second reflective sub-surface 224 and the third reflective sub-surface 225, different parts of the light emitted by the light board assembly 30 are reflected to the notch 21, which effectively improves the utilization rate of light energy and reduces the waste of light energy.

[0054] Optionally, the above-mentioned reflective sub-surface is a plane, which is conducive to reducing the difficulty of the process and facilitating the production of the reflective surface 22.

[0055] Specifically, with the light-emitting point of the light board assembly 30 as the center, the light parallel to the plane where the light board assembly 30 is located and transmitted in the direction away from the slot 21 is 0 degrees, the light parallel to the plane where the light board assembly 30 is located and transmitted in the direction of the slot 21 is 180 degrees, and the angle of the first part of the light is greater than or equal to 7 degrees and less than 77 degrees; the angle of the second part of the light is greater than or equal to 77 degrees and less than 97 degrees; the angle of the third part of the light is greater than or equal to 97 degrees and less than 107 degrees. Light within the range of 107 degrees to 180 degrees can be emitted directly from the slot 21. This arrangement allows more light to be emitted in a direction that is nearly perpendicular to the plane 100 where the slot 21 is located, where nearly perpendicular refers to a deviation from the vertical direction within a range of plus or minus 5 degrees. Figure 5 The light within the range indicated by β1 is the first part of the light, the light within the range indicated by β2 is the second part of the light, and the light within the range indicated by β3 is the third part of the light.

[0056] like Figure 5As shown, the lamp board assembly 30 includes a lamp board 31 and a plurality of lamp beads 32, and the plurality of lamp beads 32 are arranged on a side of the lamp board 31 facing the reflective surface 22. Figure 5 In the specific embodiment shown, the lamp bead 32 is used as a point light source, and the light emitted by the lamp bead 32 is 0° along the direction of the lamp board 31 away from the notch 21 with the lamp bead 32 as the center, and the light is 180° along the direction of the lamp board 31 toward the notch 21 with the lamp bead 32 as the center. The lamp bead 32 is the above-mentioned light-emitting point.

[0057] The first reflective sub-surface 223, the second reflective sub-surface 224, and the third reflective sub-surface 225 have different inclination angles. By setting the first reflective sub-surface 223, the second reflective sub-surface 224, and the third reflective sub-surface 225 to different inclination angles, different reflective sub-surfaces reflect light within different angle ranges to the slot 21, thereby making more light emitted from the slot 21, effectively improving the utilization rate of light energy and reducing the waste of light energy.

[0058] Specifically, the portion of light emitted by the light board assembly 30 that hits the first reflective sub-surface 223 generates a uniform light distribution through diffuse reflection, and is emitted from the side of the slot 21 close to the light board assembly. The portion of light emitted by the light board assembly 30 that hits the second reflective sub-surface 224 and the third reflective sub-surface 225 generates a uniform light through diffuse reflection, and is emitted from the slot 21 away from the light board assembly 30, so as to form a uniform and soft lighting effect.

[0059] It should be noted that the tilt angle refers to the acute angle formed between the reflector surface and the plane 100 where the notch 21 is located.

[0060] In some alternative embodiments, see Figures 4 to 8 , the first inclination angle ɑ1 of the first reflective sub-surface 223 is smaller than the second inclination angle ɑ2 of the second reflective sub-surface 224, and the second inclination angle ɑ2 of the second reflective sub-surface 224 is smaller than the third inclination angle ɑ3 of the third reflective sub-surface 225. By setting the inclination angles of each reflective sub-surface to gradually increase in the direction away from the light board assembly 30, and at the same time matching the first angle θ formed as an obtuse angle between the light board assembly 30 and the plane 100, it is beneficial to reflect more light emitted by the light board assembly 30 to the notch 21, effectively avoiding the waste of light energy. The present invention achieves a more efficient optical effect and simplifies the production process by controlling the reflection and refraction paths of light.

[0061] Specifically, the first inclination angle ɑ1 is greater than or equal to 2 degrees and less than or equal to 8 degrees. If the first inclination angle ɑ1 is less than 2 degrees, it is not conducive to uniform distribution of light. If the first inclination angle ɑ1 is greater than 8 degrees, it is easy to increase the design difficulty of the second reflective sub-surface 224 and the third reflective sub-surface 225. Limiting the first inclination angle ɑ1 within the range of 2 to 8 degrees is conducive to uniform distribution of light while ensuring that the light is reflected to the notch 21. For example, the first inclination angle ɑ1 is greater than or equal to 4 degrees and less than or equal to 6 degrees. For another example, the first inclination angle ɑ1 is equal to 5°.

[0062] Specifically, the second inclination angle ɑ2 is greater than or equal to 12 degrees and less than or equal to 18 degrees. Limiting the second inclination angle ɑ2 within the range of 12 to 18 degrees is conducive to the light reflected by the second reflective sub-surface 224 to be emitted from the notch 21, and the coordination between the second inclination angle ɑ2 and the first inclination angle ɑ1 is conducive to improving the uniformity of light distribution at the notch 21. For example, the second inclination angle ɑ2 is greater than or equal to 14 degrees and less than or equal to 16 degrees, and for another example, the second inclination angle ɑ2 is equal to 15°.

[0063] Specifically, the third inclination angle ɑ3 is greater than or equal to 22 degrees and less than or equal to 28 degrees. Limiting the third inclination angle ɑ3 within the range of 22 to 28 degrees is conducive to the light reflected by the third reflective sub-surface 225 to be emitted from the notch 21, and the coordination between the third inclination angle ɑ3 and the second inclination angle ɑ2 and the first inclination angle ɑ1 is conducive to improving the uniformity of light distribution at the notch 21. For example, the third inclination angle ɑ3 is greater than or equal to 24 degrees and less than or equal to 26 degrees, and for another example, the third inclination angle ɑ3 is equal to 25°.

[0064] In some optional embodiments, the angle difference between the second inclination angle ɑ2 and the first inclination angle ɑ1 is the first difference, the angle difference between the third inclination angle ɑ3 and the second inclination angle ɑ2 is the second difference, and the first difference is equal to the second difference. By setting the first difference and the second difference to be equal, the process difficulty can be reduced, which is beneficial to the production of the optical structure and improves the yield rate.

[0065] In some optional embodiments, the first difference and the second difference are greater than or equal to 3 degrees and less than or equal to 25 degrees. If the first difference and the second difference are less than 3 degrees, it is easy to cause the angle range of the light received by the reflective surface 22 to be smaller, which is not conducive to reflecting the light emitted by the light panel assembly 30 to the slot 21, and it is easy to cause waste of light energy. If the first difference and the second difference are greater than 25 degrees, the inclination angle of the third reflective sub-surface 225 is too large, resulting in the failure of the light to be emitted from the slot 21, thereby causing waste of light energy. Limiting the first difference and the second difference to the range of 3 degrees to 25 degrees is conducive to reflecting the light to the slot 21, reducing glare and reducing waste of light energy.

[0066] In some optional embodiments, the reflectivity of the reflective surface 22 is greater than or equal to 90%. This arrangement is conducive to reducing the absorption of light energy by the reflective surface, reducing the waste of light energy, and improving the utilization rate of light energy. For example, the reflectivity of the reflective surface 22 is greater than or equal to 95%.

[0067] In some alternative embodiments, see Figures 4 to 8 The optical structure also includes a diffuser plate 40, which is arranged at the notch 21, and the light board assembly 30 is arranged at an angle to the diffuser plate 40. The diffuser plate 40 is arranged at the notch 21 to seal the receiving groove 20, reduce dust from entering the optical structure, reduce the impact of dust on the light board assembly 30, and help to improve the service life of the optical structure. In addition, after the light is reflected by the reflective surface 22, it is refracted and diffused by the diffuser plate 40, which can further improve the uniformity of light distribution, facilitate uniform and soft lighting effects, reduce glare and optimize visual comfort.

[0068] It should be noted that the diffuser plate 40 is disposed at the notch 21 means that the diffuser plate 40 is disposed on the plane 100 where the notch 21 is located. In other words, the angle formed by the diffuser plate 40 and the light board assembly 30 is equal to the first angle θ, which can also be understood as the angle formed by the diffuser plate 40 and the light board assembly 30 is the first angle θ.

[0069] For example, the diffuser plate 40 is a prism plate. Of course, the diffuser plate 40 may also be in other structural forms, and the structure of the diffuser plate 40 may be designed according to specific usage requirements, and no specific limitation is made here.

[0070] In some alternative embodiments, see Figure 4 The cover assembly 10 includes a cover 11 and a reflective paper 12. The cover 11 has a receiving groove 20. The reflective paper 12 is arranged in contact with the groove bottom surface 23 of the receiving groove 20. The surface of the reflective paper 12 away from the groove bottom surface 23 of the receiving groove 20 is a reflective surface 22. The reflective paper 12 is connected to the groove bottom surface 23 of the receiving groove 20 by adhesive, and the processing technology is simple, which is conducive to reducing costs. In addition, the reflectivity of the reflective paper 12 can reach more than 95%, which effectively reduces the waste of light energy and improves the utilization rate of light energy.

[0071] In some alternative embodiments, see Figure 4The cover 11 includes a cover body 111 and a support plate 114. The cover body 111 has an opening 112 and a receiving cavity 113 connected to the opening 112. The support plate 114 is disposed in the receiving cavity 113, and the support plate 114 is connected to the cavity wall of the receiving cavity 113. The support plate 114, the cover body 111 and the opening 112 form a receiving groove 20. The opening 112 is a notch 21 of the receiving groove 20. The reflective paper 12 is disposed on the side of the support plate 114 facing the opening 112. The cover 11 is configured in a form in which the cover body 111 and the support plate 114 cooperate, which increases the design freedom of the appearance of the optical structure while ensuring the light emission angle range from the opening 112, which is conducive to improving the aesthetics of the optical structure.

[0072] In addition, the support plate 114 and the reflective paper 12 are connected by adhesive backing. Under the joint action of the cover body 111 and the diffuser plate 40, the support plate 114 and the reflective paper 12 are enclosed in the accommodating cavity 113, which effectively reduces the pollution of external dust on the bonding point between the support plate 114 and the reflective paper 12, thereby reducing the phenomenon of separation between the reflective paper 12 and the support plate 114, and effectively improving the service life of the optical structure.

[0073] It should be noted that in Figure 4 In the specific embodiment shown, a surface of the support plate 114 facing the opening 112 serves as the groove bottom surface 23 .

[0074] Optionally, the support plate 114 is an integral structure with the cover body 111. Of course, the support plate 114 and the cover body 111 can also be a separate structure, and the connection method of the support plate 114 and the cover body 111 can be designed according to specific needs, and no specific limitation is made here.

[0075] In some alternative embodiments, see Figures 4 to 8The accommodating cavity 113 includes a first side wall 115 and a second side wall 116 that are oppositely arranged. The first side wall 115 has a limiting protrusion 119. The two ends of the support plate 114 are respectively connected to the first side wall 115 and the second side wall 116. The connection point between the support plate 114 and the first side wall 115 is located on the side of the limiting protrusion 119 away from the first side wall 115. A first limiting groove 50 is formed between the support plate 114 and the limiting protrusion 119. The lamp board assembly 30 is close to the first side wall 115 relative to the second side wall 116. The first side wall 115 has a first limiting rib 117 extending toward the second side wall 116. The first limiting rib 117 has a second limiting groove 60 on the side surface away from the notch 21. The opposite ends of the lamp board assembly 30 are respectively located in the first limiting groove 50 and the second limiting groove 60. By forming the first limiting groove 50 and the second limiting groove 60 in the accommodating cavity 113, it is convenient to install the lamp board assembly 30 in the accommodating cavity 113. In addition, the orthographic projection of the first limiting groove 50 on the plane 100 overlaps with the orthographic projection of the second limiting groove 60 on the plane 100, and the two do not completely coincide with each other, which is convenient to ensure that the first angle θ formed between the lamp board assembly 30 and the plane 100 is greater than or equal to 90 degrees.

[0076] like Figure 5 As shown, the lamp board assembly 30 includes a lamp board 31 and a plurality of lamp beads 32 , wherein the plurality of lamp beads 32 are arranged on one side of the lamp board, one end of the lamp board 31 is located in the first limiting groove 50 , and the other end of the lamp board 31 is located in the second limiting groove 60 .

[0077] In some alternative embodiments, see Figures 4 to 8 The first limiting rib 117 has a third limiting groove 70 on one side facing the second side wall 116, the second side wall 116 has a second limiting rib 118 extending toward the first side wall 115, a fourth limiting groove 80 is formed between the second limiting rib 118 and the support plate 114, and the optical structure further includes a diffuser plate 40, and opposite sides of the diffuser plate 40 are respectively located in the third limiting groove 70 and the fourth limiting groove 80. By forming the third limiting groove 70 and the fourth limiting groove 80 in the accommodating cavity 113, it is convenient to assemble the diffuser plate 40, simplify the assembly process, and reduce the assembly difficulty, thereby reducing the labor cost.

[0078] In some alternative embodiments, see Figure 5The support plate 114 at least includes a first plate segment 1141, a second plate segment 1142 and a third plate segment 1143 connected in sequence, and the reflective paper 12 is attached to the first plate segment 1141, the second plate segment 1142 and the third plate segment 1143. The support plate 114 also includes a fourth plate segment 1144 connected to one end of the first plate segment 1141 away from the second plate segment 1142, the fourth plate segment 1144 is connected to the first side wall 115, and a first limiting groove 50 is formed between the fourth plate segment 1144 and the limiting protrusion 119. The support plate 114 also includes a fifth plate segment 1145 connected to one end of the third plate segment 1143 away from the second plate segment 1142, the fifth plate segment 1145 is connected to the second side wall 116, and the fifth plate segment 1145 is parallel to and spaced from the second limiting rib 118, and the space between the second and third limiting ribs forms a fourth limiting groove 80.

[0079] In some alternative embodiments, see Figures 1 to 3 The optical structure further includes a fixing bracket 90, which is connected to the side of the cover assembly 10 away from the notch 21. The setting of the fixing bracket 90 is conducive to the fixed connection of the optical structure with other structures. The fixing bracket 90 and the cover assembly 10 can be connected by rolling steel balls, which is convenient for adjusting the light emitting direction of the cover assembly 10.

[0080] In some alternative embodiments, see Figure 1 and Figure 3 The optical structure is a long strip structure, the cover assembly 10 is a long strip structure, and the cover 11 also includes at least two limiting ends 110, which are connected to both ends of the cover body 111 to limit the diffuser 40 in the cover 11.

[0081] In some optional embodiments, the above-mentioned optical structure is a lamp holder.

[0082] In some other embodiments, the present invention further provides a lamp, which includes the above optical structure. The lamp with the above optical structure has the advantages of uniform lighting, less stimulation to human eyes, and less glare. The lamp can be a desk lamp.

[0083] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0084] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0085] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0086] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An optical structure, characterized in that: include: A cover assembly (10), wherein the cover assembly (10) has a receiving groove (20); A light board assembly (30), wherein the light board assembly (30) is arranged in the receiving groove (20), and the light board assembly (30) forms a first angle θ with the plane (100) where the notch (21) of the receiving groove (20) is located, and the first angle θ is greater than or equal to 90 degrees, and the groove wall surface of the receiving groove (20) has a reflecting surface (22), and the reflecting surface (22) is configured to reflect the light emitted by the light board assembly (30) to the notch (21), and the reflecting surface (22) has a first end (221) and a second end (222) arranged opposite to each other, and the light board assembly (30) is located on a side of the first end (221) away from the second end (222), and the minimum distance between the reflecting surface (22) and the plane (100) where the notch (21) is located gradually decreases from the first end (221) to the second end (222).

2. The optical structure according to claim 1, characterized in that: The reflective surface (22) comprises at least two reflective sub-surfaces with different inclination angles.

3. The optical structure according to claim 1, characterized in that: The reflective surface (22) at least comprises a first reflective sub-surface (223), a second reflective sub-surface (224) and a third reflective sub-surface (225) connected in sequence from the first end (221) to the second end (222), The first reflective sub-surface (223) is configured to reflect a first portion of light emitted by the light panel assembly (30) toward the notch (21); The second reflective sub-surface (224) is configured to reflect a second portion of light emitted by the light panel assembly (30) toward the notch (21); The third reflective sub-surface (225) is configured to reflect a third portion of light emitted by the light panel assembly (30) toward the notch (21).

4. The optical structure according to claim 3, characterized in that: The first reflective sub-surface (223), the second reflective sub-surface (224), and the third reflective sub-surface (225) have different inclination angles.

5. The optical structure according to claim 4, characterized in that: The first inclination angle ɑ1 of the first reflecting sub-surface (223) is smaller than the second inclination angle ɑ2 of the second reflecting sub-surface (224), and the second inclination angle ɑ2 of the second reflecting sub-surface (224) is smaller than the third inclination angle ɑ3 of the third reflecting sub-surface (225).

6. The optical structure according to claim 5, characterized in that: The angular difference between the second inclination angle ɑ2 and the first inclination angle ɑ1 is a first difference, the angular difference between the third inclination angle ɑ3 and the second inclination angle ɑ2 is a second difference, and the first difference is equal to the second difference.

7. The optical structure according to claim 6, characterized in that: The first difference and the second difference are greater than or equal to 3 degrees and less than or equal to 25 degrees.

8. The optical structure according to claim 5, characterized in that: The first inclination angle ɑ1 is greater than or equal to 2 degrees and less than or equal to 8 degrees; The second inclination angle ɑ2 is greater than or equal to 12 degrees and less than or equal to 18 degrees; The third inclination angle ɑ3 is greater than or equal to 22 degrees and less than or equal to 28 degrees.

9. The optical structure according to claim 3, characterized in that: The light emitting point of the light panel assembly (30) is the center, the light parallel to the plane where the light panel assembly (30) is located and transmitted in a direction away from the slot (21) is 0 degrees, and the light parallel to the plane where the light panel assembly (30) is located and transmitted in a direction away from the slot (21) is 180 degrees. The angle of the first part of light is greater than or equal to 7 degrees and less than 77 degrees; The angle of the second portion of light is greater than or equal to 77 degrees and less than 97 degrees; The angle of the third portion of light is greater than or equal to 97 degrees and less than 107 degrees.

10. The optical structure according to claim 1, characterized in that: The reflectivity of the reflective surface (22) is greater than or equal to 90%.

11. The optical structure according to claim 1, characterized in that: The first angle θ is greater than 90 degrees and less than or equal to 110 degrees.

12. The optical structure according to any one of claims 1 to 11, characterized in that: The optical structure further comprises a diffusion plate (40), wherein the diffusion plate (40) is arranged at the notch (21), and the light panel assembly (30) is arranged at an angle to the diffusion plate (40).

13. The optical structure according to any one of claims 1 to 11, characterized in that: The cover assembly (10) comprises: A cover body (11), wherein the cover body (11) has the receiving groove (20); Reflective paper (12), the reflective paper (12) is arranged in contact with the groove bottom surface (23) of the receiving groove (20), and the surface of the reflective paper (12) facing away from the groove bottom surface (23) of the receiving groove (20) is the reflective surface (22).

14. The optical structure according to claim 13, characterized in that: The cover body (11) comprises: A cover body (111), wherein the cover body (111) has an opening (112) and a receiving cavity (113) communicating with the opening (112); A support plate (114), the support plate (114) being arranged in the accommodating cavity (113), and the support plate (114) being connected to the cavity wall surface of the accommodating cavity (113), the support plate (114), the cover body (111) and the opening (112) forming the accommodating groove (20), the opening (112) being a notch (21) of the accommodating groove (20), and the reflective paper (12) being arranged on a side of the support plate (114) facing the opening (112).

15. The optical structure according to claim 14, characterized in that: The accommodating cavity (113) comprises a first side wall (115) and a second side wall (116) arranged opposite to each other, the first side wall (115) having a limiting protrusion (119), two ends of the supporting plate (114) being respectively connected to the first side wall (115) and the second side wall (116), the connecting point between the supporting plate (114) and the first side wall (115) being located on a side of the limiting protrusion (119) away from the first side wall (115), and the supporting plate (114) and the limiting protrusion (119) being connected to each other. 19), the light board assembly (30) is close to the first side wall (115) relative to the second side wall (116), the first side wall (115) has a first limiting rib (117) extending toward the second side wall (116), and the first limiting rib (117) has a second limiting groove (60) on a side surface facing away from the notch (21), and the opposite ends of the light board assembly (30) are respectively located in the first limiting groove (50) and the second limiting groove (60).

16. The optical structure according to claim 15, characterized in that: The first limiting rib (117) has a third limiting groove (70) on the side facing the second side wall (116), the second side wall (116) has a second limiting rib (118) extending toward the first side wall (115), a fourth limiting groove (80) is formed between the second limiting rib (118) and the support plate (114), and the optical structure also includes a diffusion plate (40), and opposite sides of the diffusion plate (40) are respectively located in the third limiting groove (70) and the fourth limiting groove (80).

17. A lamp, characterized in that: The optical structure comprises the optical structure as claimed in any one of claims 1 to 16.

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