Microarray cylindrical mirror group

Abstract

The utility model discloses a microarray cylindrical lens group, which comprises a first lens, a second lens and a bonding layer. The first lens and the second lens are overlapped along the working direction in a manner that the working surfaces are parallel and orthogonal to each other, and the bonding layer is bonded on the outer peripheries and / or surfaces of the first lens and the second lens, so that the two lenses are connected into a whole which is completely isolated from the outside. According to the structure, a metal frame is not needed, high product reliability can be achieved by means of orthogonally assembling the two lenses, and good waterproof and dustproof effects are achieved; and in the aspect of process, the structure is simple to assemble and operate. Due to the fact that the glue bonding mode is adopted, batch automatic production of a simple assembly structure is achieved, and the material cost is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical mirror especially relates to a microarray cylindrical lens group. BACKGROUND

[0002] In optical element design, compound eye lens is widely used in multiple fields due to its unique viewing angle and imaging characteristics. For example, in biomedical imaging, compound eye lens can realize large viewing angle and multi-focal imaging, which helps to improve imaging resolution and accuracy; in automatic driving, robot vision and other fields, compound eye lens can provide panoramic monitoring and wide-angle view, supporting real-time detection of equipment in complex environment. The materials for making compound eye lens include glass, plastic and other polymer materials, and the processes adopted include photolithography, micro-injection molding and laser processing, which can ensure high precision and consistency of micro-lens array. With the development of microelectronics technology, compound eye lens gradually has strong photoelectric integration capability, which is convenient for application in image sensor and other devices.

[0003] The lens group formed by multiple microarray cylindrical lenses can have optical characteristics comparable to or even superior to compound eye lens, which shows broad prospects in multiple application fields. Its advantages in optimizing light energy utilization efficiency, improving imaging quality and uniformity meet the needs of different equipment and use scenarios. First, in display and projection equipment, microarray cylindrical lens can significantly improve light energy utilization efficiency, making illumination brightness more uniform, thereby bringing clearer and more stable image quality to high-resolution display and projection systems. Second, in 3D printing technology, microarray cylindrical lens can provide uniform light distribution during exposure and curing, optimizing the forming effect of each layer and improving the surface smoothness and structural precision of the printed product, which is particularly important for precise manufacturing of complex structures.

[0004] Although the existing microarray cylindrical lens uses high-strength K9 glass material, its impact resistance is limited and it is easy to crack or break under a large impact. At the same time, due to the high requirements of different application environments on the waterproof and dustproof performance of the lens, the durability of the lens usually needs to be enhanced through the means of frame and protective film in the structure design and use. However, if a metal frame is used, materials with matching thermal expansion coefficients need to be selected, and the corresponding frame structure also needs to be designed according to the specific size of the lens. This process not only increases the time and material cost, but also makes the process operation more complex, limiting the feasibility of mass production. SUMMARY

[0005] To solve the above technical problems, the utility model embodiment expects to provide a kind of microarray cylindrical lens group, the problem caused by the use of frame is solved by the orthogonal arrangement of microarray lens group and by the linking means of bonding, to realize simple, reliable assembly structure batch automation production.

[0006] The technical scheme of the utility model is as follows:

[0007] The utility model embodiment provides a kind of microarray cylindrical lens group, the cylindrical lens includes first lens, second lens and bonding layer, it is characterized in that, the first lens and the second lens are overlapped and arranged in the working direction with working surface mutually parallel and orthogonal, wherein, the bonding layer is with the way of bonding in the outer periphery of the first lens and the outer periphery and or surface of the second lens to connect the first lens and the second lens into one complete isolation from external space whole.

[0008] Preferably, the cylindrical lens group further includes two side plates arranged on two adjacent edges of the whole, and the two side plates cover at least part of the edges of the whole respectively, wherein the side plates are simultaneously extended to cover at least part of the first lens and at least part of the second lens by the bonding layer to the first lens and the second lens.

[0009] Preferably, the cylindrical lens group further includes a clamping block fixed to the first lens and the second lens.

[0010] Preferably, the side plate is made of glass material.

[0011] Preferably, the thermal expansion coefficient of the side plate matches that of the cylindrical lens group.

[0012] Preferably, the bonding layer is arranged between the outer periphery of the first lens and the upper surface of the second lens, and the outer periphery of the first lens is bonded to the upper surface of the second lens by the bonding layer.

[0013] Preferably, the two adjacent outer edges of the first lens coincide with the two adjacent outer edges of the second lens in the working direction, and the bonding layer connects the first lens and the second lens into one complete isolation from external whole in the way of bonding the two adjacent inner edges of the first lens located in the area of the second lens and the upper surface of the second lens.

[0014] Preferably, the cylindrical lens group includes a clamping block arranged on the second lens.

[0015] This invention provides a microarray cylindrical lens assembly that eliminates the need for additional protective structures, effectively reducing material costs. High product reliability and good waterproof and dustproof performance are achieved through the orthogonal assembly of two lenses. In terms of manufacturing, the assembly process is simple. The use of adhesive bonding enables automated mass production of this simple assembly structure. Attached Figure Description

[0016] Figure 1 This represents the assembly mode of microarray cylindrical mirror groups in existing technologies;

[0017] Figure 2 This is a schematic diagram of the structure of a microarray cylindrical mirror assembly in an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of another microarray cylindrical mirror assembly in an embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the structure of a microarray cylindrical mirror assembly in an embodiment of the present invention. Detailed Implementation

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] In the prior art, see Appendix Figure 1The paper illustrates that in existing technologies, a metal frame 11, such as an aluminum frame, is typically used as an auxiliary structure to support and fix two lenses. The cylindrical lens is assembled onto the metal frame 11, and an adhesive groove is designed on the metal frame 11. However, this method requires high precision in the machining of the metal frame 11, which not only increases the material cost of manufacturing but also raises the quality requirements for the frame material. In addition, due to the narrow adhesive application area between the frame and the lens, it is difficult to ensure uniform adhesive distribution during the bonding process, resulting in a high risk of seal failure under high temperature and humidity conditions. In terms of manufacturing processes, both the bonding areas of the metal frame 11 and the cylindrical lens require special surface treatment to enhance adhesion and sealing, but this increases the complexity of multiple processes, making mass production and automation difficult. Furthermore, the fixing structure of the metal frame 11 limits the control of stress distribution between the lens and the adhesive layer by adjusting process parameters during bonding and assembly. To maintain consistency in adhesive usage and process, specialized tooling fixtures must be designed and used to ensure operational precision, which further increases the material and equipment costs of production. Meanwhile, the use of the metal frame 11 during the encapsulation process can lead to a mismatch in the coefficients of thermal expansion, especially in environments with large temperature fluctuations. This can cause micro-stress accumulation between the lens and the adhesive layer, thus affecting the overall stability of the component. Due to the limitations of the metal frame 11's structure and complex process requirements in the production process, the flexibility to adjust or optimize the design is low, making it difficult to meet both diverse needs and mass production requirements.

[0022] Based on this, see Appendix Figure 2This disclosure provides a microarray cylindrical lens assembly 20, which includes a first lens 21, a second lens 22, and an adhesive layer 23. The first lens 21 and the second lens 22 are microarray cylindrical lenses, each having an array of multiple micro-cylindrical lenses (cylindrical curved surface structures) on its surface. Each cylindrical lens has specific optical characteristics and can independently focus or disperse light, thereby achieving precise control and adjustment of light. This type of lens, through the arrangement of multiple microlenses, can expand the viewing angle range and improve the uniformity and light efficiency of imaging. The first lens 21 and the second lens 22 are used to allow light to pass through and to optically shape the light, wherein the direction of light transmission is the working direction of the lens. In this embodiment, the first lens 21 and the second lens 22 are bonded together as a whole by the adhesive layer 23. The first lens 21 and the second lens 22 are arranged overlapping each other along the working direction with their working surfaces parallel and orthogonal to each other. The working direction refers to the direction of light propagation processed by each lens, the working surface refers to the plane through which the light passes, and the orthogonal direction refers to the perpendicular arrangement of the micro-cylindrical lenses on the working surfaces of each lens. The space enclosed by the first lens 21, the second lens 22, and the adhesive layer 23 is completely isolated from the external space. Specifically, the adhesive layer 23 is bonded to the outer periphery of the first lens 21 and the outer periphery and / or surface of the second lens 22. This configuration avoids the problem of lens group cracking caused by the mismatch of the coefficients of thermal expansion (CTE) of different materials, effectively reduces stress generated in high and low temperature environments, and thus improves product reliability. At the same time, the orthogonal assembly of the first lens 21 and the second lens 22 can meet the product's requirements for optical positioning surfaces, ensuring the stability of optical indicators. In this embodiment, the orthogonal structure of the first lens 21 and the second lens 22 is sealed and connected by an adhesive layer 23 arranged on the outer periphery, which not only achieves good internal dust and water protection, but also meets the high reliability requirements of automotive grade. In addition, this assembly structure requires no additional auxiliary materials, the structural design and assembly process are simple, and the impact of the assembly process on the lens and optical performance is reduced.

[0023] See appendix Figure 2The cylindrical lens assembly 20 further includes two side plates 24 disposed on two adjacent edges of the entire assembly. The two side plates 24 respectively cover at least a portion of the edge of the entire assembly. The side plates 24 extend from the adhesive layer 23 towards both the first lens 21 and the second lens 22, covering at least a portion of the first lens 21 and at least a portion of the second lens 22. In this embodiment, side plates 24 with coefficients of thermal expansion matching those of the cylindrical lens are used as connecting components and positioning surfaces. The side plates 24 are arranged on two adjacent sides of the cylindrical lens assembly 20, positioning the first lens 21 and the second lens 22 in mutually perpendicular directions. Specifically, the side plates 24 are connected to the first lens 21 and the second lens 22 through the adhesive layer 23, such that the side plates 24, the adhesive layer 23, at least a portion of the first lens 21, and at least a portion of the second lens 22 are bonded together to form a single unit. The side plates 24 are preferably made of glass. The side panel 24 effectively avoids the risk of lens assembly cracking caused by a mismatch in the coefficient of thermal expansion (CTE) between the frame material and the lens material. Simultaneously, for areas without positioning requirements on either side, the adhesive layer 23 extends between the first lens 21 and the second lens 22 in these areas, providing a sealing effect. In this configuration, the sealing effect of the surrounding adhesive effectively prevents dust from entering the lens, thereby improving the lens's lifespan and performance.

[0024] In terms of manufacturing process, the stress on the lens and the side plate 24 can be reduced by optimizing the thickness of the adhesive layer 23 and selecting a suitable type of adhesive, thereby minimizing the impact of adhesive seepage on optical properties. Furthermore, based on actual thermodynamic simulation results, a glass side plate 24 of appropriate size can be selected for the cylindrical lens, ensuring the stability and reliability of the overall structure.

[0025] See appendix Figure 2 The cylindrical lens assembly 20 also includes a clamping block 25. The main function of the clamping block 25 is to provide clamping support for external devices to prevent the first lens 21 and the second lens 22 from being clamped or squeezed during operation, thereby avoiding scratches on the lens surface. By using the clamping block 25, the integrity and optical performance of the lens can be effectively protected, ensuring its stability and reliability in use.

[0026] See appendix Figure 3 It discloses a structural schematic diagram of another embodiment of the present utility model. Figure 3In this embodiment, the adhesive layer 33 is disposed between the outer periphery of the first lens 31 and the upper surface of the second lens 32, and the outer periphery of the first lens 31 is bonded to the upper surface of the second lens 32 by the adhesive layer 33. In this embodiment, the cylindrical lens assembly 30 does not include side plates, further reducing material costs. Exemplarily, the size of the first lens 31 is smaller than the size of the second lens 32, using the upper surface of the larger second lens 32 as the bearing surface, and the first lens 31 is completely disposed within the upper surface of the second lens 32. The adhesive layer 33 is disposed around the lower portion of the outer periphery of the first lens 31, bonding the lower surface of the first lens 31 and the upper surface of the second lens 32 together to form a single unit.

[0027] See appendix Figure 3 The cylindrical lens assembly 30 also includes a clamping block 35. The main function of the clamping block 35 is to provide clamping support for external devices to prevent the first lens 31 and the second lens 32 from being clamped or squeezed during operation, thereby avoiding scratches on the lens surface. By using the clamping block 35, the integrity and optical performance of the lens can be effectively protected, ensuring its stability and reliability in use.

[0028] See appendix Figure 4 The document discloses a structural schematic diagram of another embodiment of the present invention, wherein two adjacent outer edges of the first lens 41 and two adjacent outer edges of the second lens 42 are aligned along the working direction. The adhesive layer 43 connects the first lens 41 and the second lens 42 into a whole completely isolated from the outside by bonding the first lens 41 to two adjacent inner edges of the first lens 41 located in the area where the second lens 42 is located and to the upper surface of the second lens 42. In this embodiment, the relative positions of the large and small cylindrical mirrors of the two lenses are first determined. For example, the size of the first lens 41 is smaller than the size of the second lens 42, and the upper surface of the larger second lens 42 is used as the bearing surface. (See attached diagram.) Figure 4 In the configuration shown, the first lens 41 and the second lens 42 have positioning rims for positioning calibration. Specifically, in the assembly... Figure 4In the configuration shown, the two positioning edges of the second lens 42 are placed on the right-angle fixing edge of the positioning block 44. The positioning block 44 is a 90-degree configuration of any material, as is common in the prior art. Then, the two positioning edges of the first lens 41 are aligned and placed on the right-angle fixing edge of the positioning block 44, so that the two adjacent outer edges of the first lens 41 are aligned with the two adjacent outer edges of the second lens 42 along the working direction. Subsequently, a manual dispensing machine or other dispensing device can be used to apply adhesive to the bonding layer 43, ensuring consistent adhesive application. After bonding, the positions of the two cylindrical lenses are fixed, and the positioning block 44 can then be removed to allow for adhesive bonding on the other two sides.

[0029] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A microarray cylindrical lens assembly, wherein the cylindrical lens comprises a first lens, a second lens, and an adhesive layer, characterized in that, The first lens and the second lens are arranged in an overlapping manner with their working surfaces parallel and orthogonal to each other along the working direction. The adhesive layer connects the first lens and the second lens into a whole that is completely isolated from the external space by being bonded to the outer periphery of the first lens and the outer periphery and / or surface of the second lens.

2. The cylindrical mirror assembly according to claim 1, characterized in that, The cylindrical lens assembly further includes two side plates disposed on two adjacent edges of the whole, the two side plates respectively covering at least a portion of the edge of the whole, wherein the side plates extend from the adhesive layer to both the first lens and the second lens, covering at least a portion of the first lens and at least a portion of the second lens.

3. The cylindrical mirror assembly according to claim 2, characterized in that, The cylindrical lens assembly further includes a clamping block, which is fixed to the first lens and the second lens.

4. The cylindrical mirror assembly according to claim 2, characterized in that, The side panels are made of glass.

5. The cylindrical mirror assembly according to claim 2, characterized in that, The coefficient of thermal expansion of the side plate is matched with that of the cylindrical mirror assembly.

6. The cylindrical mirror assembly according to claim 1, characterized in that, The adhesive layer is disposed between the outer periphery of the first lens and the upper surface of the second lens, and the outer periphery of the first lens is bonded to the upper surface of the second lens through the adhesive layer.

7. The cylindrical mirror assembly according to claim 1, characterized in that, The two adjacent outer edges of the first lens coincide with the two adjacent outer edges of the second lens along the working direction. The adhesive layer connects the first lens and the second lens into a whole that is completely isolated from the outside by bonding the first lens to the two adjacent inner edges of the first lens located in the area where the second lens is located and to the upper surface of the second lens.

8. The cylindrical mirror assembly according to any one of claims 6 to 7, characterized in that, The cylindrical lens assembly includes a clamping block, which is disposed on the second lens.

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