Independent lens assembly and display device

Abstract

The utility model provides an independent lens assembly and display device, including lens unit and emission cylinder, lens unit includes lens body and landing leg, landing leg can be fixed on circuit substrate, emission cylinder also can be fixed on circuit substrate. When a single independent lens assembly is damaged and needs to be replaced, the lens units and the shooting barrels can be disassembled by disassembling the fixing devices among the supporting legs, the shooting barrels and the circuit substrate, so that single lens unit and single shooting barrel can be disassembled independently, and the maintenance cost is reduced. Moreover, the independent lens assembly can be independently fixed on the circuit substrate, so that the corresponding lens assembly can be randomly adjusted and arranged in the assembly link, and the independent lens assembly is matched with the light-emitting unit which can be flexibly fixed on the circuit substrate for use, and the arrangement of the light-emitting unit and the lens assembly can be freely adjusted in the assembly link. And the assembling flexibility is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of optoelectronic display technology, and in particular to an independent lens assembly and display device. Background Technology

[0002] Display devices typically consist of multiple light-emitting units (such as LED chips). A lens assembly is usually placed above these units to guide the light, thereby improving optical performance and visual effects. Specifically, a lens assembly can increase brightness by reducing light loss during propagation through a focusing mechanism; it can also enhance viewing angle uniformity, ensuring consistent brightness and color from different viewing angles; furthermore, it can improve color mixing, especially in full-color displays, where the lens assembly helps distribute light evenly, reducing color interference and improving color accuracy; and so on.

[0003] To ensure the lens assembly remains stable relative to the light-emitting unit, appropriate methods for fixing the lens assembly are required. Existing methods for fixing lens assemblies include:

[0004] Option 1: Use an integrated frame to fix multiple lens assemblies (e.g., patents CN207441158U and CN210166938U). This involves placing multiple lens assemblies within a single fixed frame, which is then fixed to the display device. Specifically, multiple fixing holes are provided on the integrated frame, and each lens assembly is engaged with one of these holes. The integrated frame is then fixed to other structures of the display screen, such as the circuit board, thereby indirectly fixing the lens assemblies to the circuit board and maintaining stability relative to the light-emitting unit.

[0005] Option 2: An integrated lens assembly (such as patent CN201170475U) is used to integrate multiple lens assemblies together, and then this one-piece lens assembly is fixed to the display device. Specifically, by molding multiple lens assemblies corresponding to multiple light-emitting units into a single unit or forming them into a whole through other fixing methods, and then fixing this lens assembly as a whole to the display device, the lens assembly can also be fixed to the circuit board, maintaining stability relative to the light-emitting units.

[0006] In summary, existing lens assembly fixing solutions all employ a method of fixing multiple lens assemblies as a whole. When part of the integrated frame or part of the integrated optical lens assembly is damaged, the entire frame or the entire integrated lens assembly needs to be replaced, rather than just replacing the damaged part. This increases maintenance costs and complexity. Furthermore, the relative positions, number, and angles between the lens assemblies are limited during the initial manufacturing of the integrated frame or integrated lens assembly, making it impossible to adjust them according to specific application requirements during subsequent assembly and use, thus reducing display flexibility. Utility Model Content

[0007] In view of the shortcomings of the prior art described above, the technical problem to be solved by this utility model is to provide an independent lens assembly and display device, so as to solve the problems of high maintenance costs or poor flexibility caused by the lens assembly being installed and fixed on the display device as a whole in the prior art.

[0008] To achieve the above and other related objectives, a first aspect of this application provides an independent lens assembly that is directly fixed to a circuit board and redistributes the emitted light from a light-emitting unit on the circuit board. The assembly includes: a lens unit comprising a lens body and a leg connected at one end to the lens body, the other end of the leg being provided with a first mounting structure; and an emission tube comprising a tube body and a second mounting structure. The tube body contains a receiving cavity for accommodating the lens unit, and one end and the other end of the tube body are respectively provided with an installation port and a light-transmitting port communicating with the receiving cavity. The lens unit is disposed within the receiving cavity, and the second mounting structure is disposed at the other end of the emission tube. The emission tube and the lens unit are fixed to the circuit board via the first mounting structure and the second mounting structure, respectively. The emitted light from the light-emitting unit passes through the lens body and exits from the light-transmitting port.

[0009] In one embodiment of the first aspect of this application, there are two legs, and the two legs are not centrally symmetrical with respect to the mirror body.

[0010] In one embodiment of the first aspect of this application, a first limiting part is provided on the lens body, and a first stop part matching the first limiting part is provided at a corresponding position on the inner wall of the receiving cavity. When the lens unit is disposed in the receiving cavity, the first stop part of the cylinder body abuts against the first limiting part and limits the lens assembly.

[0011] In one embodiment of the first aspect of this application, a second limiting part is provided on one side of the barrel, and a matching part matching the second limiting part is provided at a corresponding position on the outer periphery of the lens body. The lens body and the second limiting part are engaged and aligned with each other, so that the barrel body is fitted into the lens unit.

[0012] In one embodiment of the first aspect of this application, the lens unit further includes a light guide post, which is disposed on the side of the lens body near the light-emitting unit. The light emitted from the light-emitting unit enters the lens body after passing through the light guide post and exits from the light-transmitting port.

[0013] In one embodiment of the first aspect of this application, the mirror body, the support leg, and the light guide post are integrally formed.

[0014] In one embodiment of the first aspect of this application, one end of the light guide post is connected to the mirror body, and the other end is provided with a first end face and a second end face of different heights. The distance between the first end face and the circuit board is less than the distance between the second end face and the circuit board. The first end face is located directly above the light-emitting unit. The light emitted by the light-emitting unit passes through the light guide post and the mirror body sequentially from the first end face and then exits. Sunlight entering from the outside passes through the mirror body and the light guide post sequentially and then exits from the second end face.

[0015] To achieve the above and other related objectives, a second aspect of this application provides a display device comprising a plurality of independent lens assemblies as described in any one of the first aspects of this application, a plurality of light-emitting units, and a circuit board; the light-emitting units are fixed on the circuit board, the lens units cover the corresponding light-emitting units, and the emitted light from the light-emitting units passes through the lens body and exits from the light-transmitting port.

[0016] In one embodiment of the second aspect of this application, the first mounting structure is a hook, and the hook has a connecting hole; the second mounting structure is a threaded hole; the circuit board has a first mounting hole, and screws are used to sequentially pass through the first mounting hole, the connecting hole, and the threaded hole to connect to the threaded hole, thereby fixing the lens unit and the shooting tube to the circuit board.

[0017] In one embodiment of the second aspect of this application, one or more positioning posts are provided at one end of the cylinder body, and a second mounting hole is provided at the corresponding position of the circuit board, wherein the positioning post engages with the second mounting hole for limiting.

[0018] As described above, the independent lens assembly and display device of this utility model have the following beneficial effects:

[0019] This application provides an independent lens assembly that can be directly fixed to a circuit board and redistribute the emitted light from the light-emitting units on the circuit board. It includes a lens unit and an emission tube. The lens unit includes a mirror body and a support leg. One end of the support leg is fixed to the mirror body, and the other end is fixed to the circuit board, allowing the lens unit as a whole to be fixed to the circuit board on which the light-emitting units are arranged via the support leg. In addition, the independent lens assembly also includes an emission tube, which includes a tube body and a second mounting structure. The tube body has a receiving cavity for accommodating the lens unit. One end of the tube body and the other end have a mounting port and a light-transmitting port respectively communicating with the receiving cavity. When the lens unit is placed in the receiving cavity, the light emitted from the light-emitting units passes through the lens and exits through the light-transmitting port. The second mounting structure is located at the other end of the emission tube. The emission tube and the lens unit are fixed to the circuit board via the first mounting structure and the second mounting structure, respectively. When a single independent lens assembly is damaged and needs replacement, the lens unit and the firing tube can be disassembled separately by removing the fixing devices between the first and second mounting structures and the circuit board. This allows for individual disassembly of each lens unit and firing tube, reducing maintenance costs. Furthermore, since the independent lens assembly can be individually fixed to the circuit board, the corresponding lens assembly can be freely adjusted and arranged during assembly. When used in conjunction with the light-emitting unit, which can be flexibly fixed to the circuit board, the arrangement of the light-emitting unit and lens assembly can be freely adjusted during assembly, enhancing assembly flexibility.

[0020] The display device provided in this application includes several independent lens assemblies as described in any of the first aspects of this application, several light-emitting units, and a circuit board. The light-emitting units are fixed to the circuit board, and the lens assemblies cover the corresponding light-emitting units. The emitted light from the light-emitting units passes through the lens body and exits from the light-transmitting port. Similarly, the display device also possesses the technical effects of reduced maintenance costs and enhanced assembly flexibility achieved by the aforementioned independent lens assemblies, which will not be elaborated further here. Attached Figure Description

[0021] Figure 1 The diagram shown is a schematic representation of the assembly structure of a display device according to an embodiment of this application.

[0022] Figure 2 The diagram shown is a three-dimensional structural schematic of the firing tube in one embodiment of this application.

[0023] Figure 3 The image shown is a top view of the firing tube in one embodiment of this application.

[0024] Figure 4The image shown is a side view of the firing tube in one embodiment of this application. Figure 1 .

[0025] Figure 5 The image shown is a side view of the firing tube in one embodiment of this application. Figure 2 .

[0026] Figure 6 The image shown is a bottom view of the firing tube in one embodiment of this application.

[0027] Figure 7 The diagram shown is a three-dimensional structural schematic of the lens unit in one embodiment of this application.

[0028] Figure 8 The image shown is a bottom view of the lens unit in one embodiment of this application.

[0029] Figure 9 This is shown as a side view of the lens unit in one embodiment of this application. Figure 1 .

[0030] Figure 10 This is shown as a side view of the lens unit in one embodiment of this application. Figure 2 .

[0031] Component designation explanation

[0032] 1 Lens Unit

[0033] 11. Lens

[0034] 111 First Limiting Part

[0035] 112 Coordination Department

[0036] 12 legs

[0037] 121 First Installation Structure

[0038] 13 light guide columns

[0039] 131 First end face

[0040] 132 Second end face

[0041] 2. Launch tube

[0042] 21. Tube body

[0043] 211 Receptacle

[0044] 211a First stop section

[0045] 212 Second Limiting Part

[0046] 213 Positioning Post

[0047] 22 Second installation structure

[0048] 221 Second stop section

[0049] 3 Circuit board

[0050] 31 First mounting hole

[0051] 32 Second mounting hole

[0052] 4 light-emitting units

[0053] 5 screws Detailed Implementation

[0054] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0055] It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this utility model, should still fall within the scope of the technical content disclosed in this utility model. The following detailed description should not be considered restrictive, and the scope of the embodiments of this application is limited only by the claims of the published patents. The terminology used herein is for describing specific embodiments only and is not intended to limit this application. Spatial terms such as "upper," "lower," "left," "right," "below," "below," "lower part," "above," "upper part," etc., may be used in the text to illustrate the relationship between one element or feature shown in the figures and another element or feature.

[0056] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "holding" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0057] Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms “comprising,” “including,” indicate the presence of the stated feature, operation, element, component, item, kind, and / or group, but do not preclude the presence, occurrence, or addition of one or more other features, operations, elements, components, items, kinds, and / or groups. The terms “or” and “and / or” as used herein are interpreted as inclusive, or mean any one or any combination thereof. Thus, “A, B, or C” or “A, B, and / or C” means “any one of: A; B; C; A and B; A and C; B and C; A, B, and C.” Exceptions to this definition arise only when combinations of elements, functions, or operations are inherently mutually exclusive in some manner.

[0058] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the invention.

[0059] like Figure 1 As shown, the first aspect of this application provides an independent lens assembly, directly fixed to a circuit board 3 and redistributing the emitted light from a light-emitting unit 4 on the circuit board 3, comprising: a lens unit 1, the lens unit 1 including a lens body 11 and a support leg 12 connected at one end to the lens body 11, the other end of the support leg 12 being provided with a first mounting structure 121; and a projection tube 2, the projection tube 2 including a tube body 21 and a second mounting structure 22; wherein, the tube body 21 is provided with a receiving cavity 211 for accommodating the lens unit 1. One end of the tube body 21 and the other end are respectively provided with an installation port (not shown) and a light transmission port (not shown) communicating with the accommodating cavity 211. The lens unit 1 is disposed in the accommodating cavity 211, and the second mounting structure 22 is disposed at the other end of the tube 2. The tube 2 and the lens unit 1 are respectively fixed to the circuit board 3 through the first mounting structure 121 and the second mounting structure 22. The emitted light from the light-emitting unit 4 passes through the mirror body 11 and is emitted from the light transmission port (not shown).

[0060] Preferably, the mirror body 11 can be a cylindrical or rectangular structure, and correspondingly, the sleeve can also be a matching cylindrical or cubic structure. It should be understood that the foregoing examples of the shapes of the mirror body 11 and the sleeve do not constitute a limitation on their structure, and all shapes that can achieve the mutual fitting of the mirror body 11 and the sleeve fall within the protection scope of this utility model.

[0061] Preferably, the lens body 11 and the support leg 12 are integrally formed, ensuring precise fit and docking between them. By reducing seams and interfaces, it avoids lens unit 1 failure or unstable optical effects due to loosening or deformation of connection points, and also avoids optical deviations caused by assembly errors, making lens positioning more accurate and helping to ensure precise distribution of emitted light. Furthermore, the integral design makes the connection between components tighter, less prone to loosening or detachment, thereby improving the long-term reliability of the product, especially maintaining good stability under vibration or mechanical stress environments.

[0062] It should be understood that when a single independent lens assembly is damaged and needs to be replaced, the lens unit 1 and the firing tube 2 can be disassembled separately by removing the fixing device between the first mounting structure 121 and the second mounting structure 22 and the circuit board 3, thereby achieving individual disassembly of the single lens unit 1 and the firing tube 2 and reducing maintenance costs. Furthermore, since the independent lens assembly can be individually fixed to the circuit board 3, the corresponding lens assembly can be freely adjusted and arranged during the assembly process. When used in conjunction with the light-emitting unit 4, which can be flexibly fixed to the circuit board, the arrangement of the light-emitting unit 4 and the lens assembly can be freely adjusted during the assembly process, enhancing assembly flexibility.

[0063] In one embodiment of the first aspect of this application, there are two legs 12, and the two legs 12 are not centrally symmetrical with respect to the mirror body 11.

[0064] It should be understood that the support legs 12 on the lens body 11 can be one or more, preferably two. Furthermore, the two support legs 12 are arranged on opposite sides of the lens body 11 in a non-centrally symmetrical manner relative to the lens body 11. This design ensures precise positioning of the lens unit 1 during assembly. By making the positions of the two support legs 12 asymmetrical, it ensures that the lens unit 1 has a clear direction and position when fixed, reducing the likelihood of assembly errors. Thus, during assembly, the support legs 12 naturally guide the lens body 11 to the correct position, thereby reducing the risk of asymmetrical or skewed assembly.

[0065] In one embodiment of the first aspect of this application, a first limiting part 111 is provided on the lens body 11, and a first stop part 211a matching the first limiting part 111 is provided at a corresponding position on the inner wall of the receiving cavity 211. When the lens unit 1 is disposed in the receiving cavity 211, the first stop part 211a of the barrel body 21 abuts against the first limiting part 111 and limits the lens assembly.

[0066] It should be understood that a corresponding protruding first stop 211a is provided on the side of the accommodating cavity 211 near the light outlet, and a corresponding annular protruding first limiting part 111 is provided at the corresponding position of the lens body 11. When the lens unit 1 is housed in the accommodating cavity 211, the first limiting part 111 will abut against the first stop 211a, thereby enabling the shooting tube 2 to abut against the circuit board 3 through the limiting effect, thus playing a certain degree of fixing role for the lens unit 1.

[0067] In one embodiment of the first aspect of this application, a second limiting part 212 is provided on one side of the barrel 21, and a matching part 112 matching the second limiting part 212 is provided at a corresponding position on the outer periphery of the lens body 11. The lens body 11 and the second limiting part 212 are engaged and aligned with each other, so that the barrel 21 is fitted into the lens unit 1.

[0068] It should be understood that the second limiting part 212 provided on the barrel 21 can be designed in a planar shape, engaging with the corresponding mating part 112 provided on the lens unit 1, thereby limiting the relative rotation between the lens unit 1 and the barrel 21 and ensuring that the lens unit 1 is correctly installed during assembly. That is, the barrel 21 can only be fitted onto the lens unit 1 when the mating part 112 of the lens unit 1 is precisely aligned and engaged with the second limiting part 212 of the barrel 21. On the one hand, the mating part 112 and the second limiting part 212 together form an anti-rotation structure, which can effectively prevent the lens unit 1 from rotating or shifting within the barrel 21. In optical applications, the direction of light emission or the optical focus of the lens needs to be precisely aligned, so preventing rotation is crucial for performance. On the other hand, the engaging design of the mating part 112 and the limiting part provides an assembly positioning mechanism for the lens unit 1, ensuring that the lens body 11 is always in the predetermined position during installation. This positioning method improves the accuracy of assembly and also facilitates rapid assembly in mass production.

[0069] In one embodiment of the first aspect of this application, the lens unit 1 further includes a light guide post 13, which is disposed on the side of the mirror body 11 near the light-emitting unit 4. The light emitted from the light-emitting unit 4 enters the mirror body 11 after passing through the light guide post 13 and exits from the light-transmitting port (not shown).

[0070] It should be understood that the light guide post 13 is a columnar optical structure designed in the lens unit 1, located on the side of the lens body 11 near the light-emitting unit 4. Its shape is usually columnar, but the specific shape can be designed as a cylindrical, rectangular, or other complex columnar structure according to requirements. The bottom of the light guide post 13 is close to or directly faces the light-emitting unit 4, and the top is connected to the lens body 11, serving as the channel for light to enter the lens body 11.

[0071] In one embodiment of the first aspect of this application, the mirror body 11, the support leg 12 and the light guide post 13 are integrally formed.

[0072] It should be understood that a one-piece molded structure refers to the mirror body 11, the support leg 12, and the light guide post 13 being integrally molded using the same process during manufacturing, becoming an inseparable whole, rather than being assembled and connected later. Typically, injection molding, precision molding, 3D printing, or other one-step molding processes can be used to manufacture this one-piece molded structure using transparent optical materials (such as PC, PMMA, glass, etc.). On the one hand, the one-piece molding design eliminates seams or connection points between the mirror body 11, the support leg 12, and the light guide post 13, making the entire component structure more robust and avoiding the risk of performance degradation due to loose connections or breakage. On the other hand, one-piece molding eliminates subsequent assembly steps, simplifying the manufacturing process, improving production efficiency, reducing assembly errors between multiple components, increasing the yield rate of finished products, and thus reducing overall manufacturing costs. Furthermore, the light guide post 13 is integrally formed with the mirror body 11. When light enters the mirror body 11 through the light guide post 13, it will not suffer light loss or light scattering due to interface errors or optical discontinuities, thereby improving the light transmission efficiency. It can ensure that the light maintains the stability of direction and intensity during the transition from the light guide post 13 to the mirror body 11, which helps to achieve precise optical control.

[0073] In one embodiment of the first aspect of this application, one end of the light guide post 13 is connected to the mirror body 11, and the other end is provided with a first end face 131 and a second end face 132 of different heights. The distance between the first end face 131 and the circuit board 3 is smaller than the distance between the second end face 132 and the circuit board 3. The first end face 131 is located directly above the light-emitting unit 4. The light emitted from the light-emitting unit 4 passes through the light guide post 13 and the mirror body 11 sequentially from the first end face 131 and then exits. Sunlight entering from the outside passes through the mirror body 11 and the light guide post 13 sequentially and then exits from the second end face 132.

[0074] It should be understood that the light guide column 13 is provided with a first end face 131 and a second end face 132 at different positions relative to the circuit board 3. The first end face 131 is close to the circuit board 3 and located directly above the light-emitting unit 4, so that the light emitted from the light-emitting unit 4 is captured by the bottom surface of the light guide column 13 and guided to the lens or target area through its optical surface, thereby reducing the loss or deflection of light and ensuring that the light energy of the LED light source is fully utilized. After passing through the mirror body 11, the light emitted from the light-emitting unit 4 can be converted into a uniformly distributed beam, improving the lighting effect. The second end face 132 is farther from the circuit board 3 and is not directly opposite the light-emitting unit 4. Its function is to allow external sunlight or other ambient light to enter through the top surface of the low light guide pillar 13, propagate through the interior of the pillar, and then exit from the second end face 132. This reduces excessive refraction when sunlight hits the outer surface of the lens. By accurately guiding the sunlight to the second end face 132 and out through it, the problem of glare or dazzling light caused by the direct entry of divergent light into the human eye is avoided. Therefore, this staggered design allows the two light guide pillars 13 to independently capture and guide different light sources (LED light and sunlight) without interference, maximizing the efficiency of the optical system.

[0075] Preferably, the light guide post 13 consists of two wedge-shaped structures of different heights. The lower end of the higher wedge-shaped structure is aligned with the light-emitting unit 4, guiding the light emitted from the light-emitting unit 4 into the lens and ultimately outwards, while the lower wedge-shaped structure is used to guide sunlight entering from the outside out of the lens. The wedge-shaped cross-section helps optimize the refraction and reflection path of light, allowing the light to propagate along the designed path after entering the light guide post 13, thereby improving light guiding efficiency.

[0076] To achieve the above and other related objectives, a second aspect of this application provides a display device comprising a plurality of independent lens assemblies as described in any of the first aspects of this application, a plurality of light-emitting units 4 and a circuit board 3; the light-emitting units 4 are fixed on the circuit board 3, the lens unit 1 covers the corresponding light-emitting unit 4, and the emitted light from the light-emitting unit 4 passes through the mirror body 11 and is emitted from the light-transmitting port (not shown).

[0077] In one embodiment of the second aspect of this application, the first mounting structure 121 is a hook, and the hook is provided with a connecting hole; the second mounting structure 22 is a threaded hole; the circuit board 3 is provided with a first mounting hole 31, and the screw 5 is threadedly connected to the threaded hole by passing through the first mounting hole 31 in sequence, thereby fixing the lens unit 1 and the shooting tube 2 on the circuit board 3.

[0078] Preferably, a second stop 221 is provided on the second mounting structure 22. Preferably, the second stop 221 is a sheet-like structure with a threaded hole in the middle. The sheet-like structure is vertically fixed to the inner wall of the second mounting structure 22. When the second mounting structure 22 is engaged with the lug on the support leg 12, the second stop 221 abuts against the lug, which can limit the lug and allow the lug to fit tightly against the circuit board 3.

[0079] It should be understood that the first mounting structure 121 can also be configured as a snap-fit ​​or slot structure, with holes or protrusions provided at corresponding positions on the circuit board 3. The support leg 12 is fixed to the circuit board 3 by the engagement of the snap-fit ​​or slot with the holes or protrusions. Alternatively, the first structure can also be configured as a screw hole, with holes provided at corresponding positions on the circuit board 3, and the support leg 12 is fixed to the circuit board 3 by screws. It should be understood that the above-described forms of the first mounting structure 121 and its fixing methods to the circuit board 3 are not exhaustive and do not constitute a limitation on the corresponding technical solutions. All technical means that can achieve mutual fixing of the first mounting structure 121 and the circuit board 3, and which can be conceived without creative effort, fall within the protection scope of this utility model.

[0080] In one embodiment of the second aspect of this application, one or more positioning posts 213 are provided at one end of the cylindrical body 21, and a second mounting hole 32 is provided at the corresponding position of the circuit board 3, wherein the positioning post 213 engages with the second mounting hole 32 for limiting positioning.

[0081] Preferably, the positioning post 213 can be cylindrical, square, or other irregular cross-sections. When only one positioning post 213 is set, using a square or other irregular cross-section positioning post 213 can more accurately position the direction and avoid the rotation of the cylinder body 21.

[0082] Preferably, the positioning post 213 and the mounting hole can be fitted with either an interference fit or a clearance fit. An interference fit means that the positioning post 213 is slightly larger than the second mounting hole 32 on the circuit board 3, forming a tight fixation after the positioning post 213 is inserted into the second mounting hole 32. A clearance fit means that the positioning post 213 is slightly smaller than the second mounting hole 32, which facilitates installation and removal, adapting to situations requiring frequent disassembly and assembly.

[0083] It should be understood that the height of the positioning post 213 can be optimized according to the thickness of the circuit board 3 and the assembly space to avoid excessive length affecting assembly or causing the engagement to be unstable.

[0084] In summary, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0085] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A stand-alone lens assembly, directly fixed to a circuit board (3) and redistributing the emitted light from the light-emitting unit (4) on the circuit board (3), characterized in that, include: Lens unit (1), the lens unit (1) includes a lens body (11) and a support leg (12) connected to the lens body (11) at one end, and a first mounting structure (121) is provided at the other end of the support leg (12); The firing tube (2) includes a tube body (21) and a second mounting structure (22); wherein, the tube body (21) is provided with a receiving cavity (211) for accommodating the lens unit (1), and one end of the tube body (21) and the other end are respectively provided with an installation port and a light-transmitting port communicating with the receiving cavity (211), the lens unit (1) is disposed in the receiving cavity (211), and the second mounting structure (22) is disposed at the other end of the firing tube (2); The emitting tube (2) and the lens unit (1) are fixed to the circuit board (3) through the first mounting structure (121) and the second mounting structure (22) respectively. The emitted light from the light-emitting unit (4) passes through the mirror body (11) and is emitted from the light-transmitting port.

2. The independent lens assembly according to claim 1, characterized in that, There are two legs (12), and the two legs (12) are not centrally symmetrical with respect to the mirror body (11).

3. The independent lens assembly according to claim 1, characterized in that, The lens body (11) is provided with a first limiting part (111), and a first stop part (211a) matching the first limiting part (111) is provided at a corresponding position on the inner wall of the accommodating cavity (211). When the lens unit (1) is disposed in the accommodating cavity (211), the first stop part (211a) of the cylinder body (21) abuts against the first limiting part (111) and limits the lens assembly.

4. The independent lens assembly according to claim 1, characterized in that, A second limiting part (212) is provided on one side of the barrel (21), and a matching part (112) matching the second limiting part (212) is provided at the corresponding position on the outer periphery of the lens body (11). The lens body (11) and the second limiting part (212) are engaged and aligned with each other, so that the barrel (21) is fitted into the lens unit (1).

5. A stand-alone lens assembly according to claim 1, characterized in that, The lens unit (1) further includes a light guide column (13), which is disposed on the side of the mirror body (11) near the light-emitting unit (4). The light emitted from the light-emitting unit (4) enters the mirror body (11) after passing through the light guide column (13) and exits from the light-transmitting port.

6. A stand-alone lens assembly according to claim 5, characterized in that, The mirror body (11), the support leg (12), and the light guide column (13) are integrally formed.

7. A stand-alone lens assembly according to claim 5, characterized in that, One end of the light guide post (13) is connected to the mirror body (11), and the other end is provided with a first end face (131) and a second end face (132) of different heights. The distance between the first end face (131) and the circuit board (3) is smaller than the distance between the second end face (132) and the circuit board (3). The first end face (131) is located directly above the light-emitting unit (4). The light emitted from the light-emitting unit (4) passes through the light guide post (13) and the mirror body (11) in sequence from the first end face (131) and then exits. Sunlight entering from the outside passes through the mirror body (11) and the light guide post (13) in sequence and then exits from the second end face (132).

8. A display device, characterized in that, It includes several independent lens assemblies as described in any one of claims 1-7, several light-emitting units (4) and circuit board (3); the light-emitting unit (4) is fixed on the circuit board (3), the lens unit (1) covers the corresponding light-emitting unit (4), and the light emitted from the light-emitting unit (4) passes through the mirror body (11) and is emitted from the light-transmitting port.

9. A display device according to claim 8, characterized in that, The first mounting structure (121) is a hook, and the hook has a connection hole; the second mounting structure (22) is a threaded hole; the circuit board (3) is provided with a first mounting hole (31), and screws (5) are used to sequentially pass through the first mounting hole (31) and the connection hole to the threaded hole to connect with it, thereby fixing the lens unit (1) and the shooting tube (2) on the circuit board (3).

10. A display device according to claim 8, characterized in that, One or more positioning posts (213) are provided at one end of the cylindrical body (21), and a second mounting hole (32) is provided at the corresponding position of the circuit board (3). The positioning post (213) engages with the second mounting hole (32) for positioning.

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