Miniature dual-lens module

Abstract

The utility model relates to the technical field of cameras, and discloses a miniature double-lens module, which comprises two groups of lenses and an image sensor, the bottoms of the two groups of lenses are arranged on the image sensor in parallel, and the two groups of lenses are bonded with the image sensor through first glue; the peripheries of the two groups of lenses are wrapped with shading black films; a gap is arranged between the two groups of lenses, and the gap is filled with a shading black film. According to the module, the two groups of lenses are arranged on the image sensor in parallel, so that the space utilization rate is remarkably improved, and the whole module is miniaturized while high performance is maintained.

Description

Technical Field

[0001] This utility model relates to the field of camera technology, specifically a miniature dual-lens module. Background Technology

[0002] With the rapid development of camera technology, cameras have become indispensable tools in many industries and fields, especially in the medical and industrial sectors, where their application demand is growing. Dual-camera technology, as an important branch of camera technology, has many technical advantages, but it also faces some specific application challenges.

[0003] The dual-camera system achieves several advanced functions through the collaborative work of two cameras. First, image assistance is a major highlight. By combining the image information captured by the two cameras, the system can perform image fusion and enhancement, thereby improving image clarity and color reproduction. Second, digital zoom allows users to achieve long-distance shooting and detail capture without sacrificing image quality. Furthermore, depth measurement is another key technology of the dual-camera system. By calculating the differences between the images captured by the two cameras, the system can accurately measure the three-dimensional coordinates and depth information of objects, providing crucial data for subsequent image processing and analysis.

[0004] However, despite the numerous advantages of dual-camera technology, its application in the medical and industrial fields has been limited. This is mainly because traditional dual-camera lens modules are relatively large, making it difficult to meet the miniaturization and integration requirements of these sectors. In the medical field, surgical instruments and medical equipment typically require high precision and portability, which traditional dual-camera lens modules often cannot meet. In the industrial field, due to limitations in the production environment and processes, large dual-camera lens modules are also difficult to widely apply on production lines or testing equipment.

[0005] Therefore, it is of great significance to develop a miniaturized, high-performance dual-camera module to meet the specific needs of the medical and industrial fields. Utility Model Content

[0006] In order to overcome the defects of the existing technology, the purpose of this utility model is to provide a miniature dual-lens module to solve the technical problem that the dual-lens module body cannot be miniaturized in the existing technology.

[0007] This utility model is achieved through the following technical solution:

[0008] This utility model provides a miniature dual-lens module, including two sets of lenses and an image sensor;

[0009] The two sets of lenses are arranged side by side at the bottom on the image sensor, and the two sets of lenses are bonded to the image sensor with a first adhesive.

[0010] Both sets of lenses are wrapped with a light-blocking black film.

[0011] A gap is provided between the two sets of lenses, and the gap is filled with a light-blocking black film.

[0012] Preferably, the surface area of ​​the image sensor is larger than the bottom contact area of ​​the two lenses.

[0013] Preferably, both sets of lenses have a first aperture on the top two sides.

[0014] Preferably, the two sets of lenses have the same structure.

[0015] Furthermore, the lens includes a first lens element, a second lens element, a third lens element, and a fourth lens element;

[0016] The top surface of the first lens is provided with a first aperture; the bottom surface of the first lens is attached to the top surface of the second lens with a second adhesive; the bottom surface of the second lens is attached to the top surface of the third lens with a third adhesive, the bottom surface of the third lens is attached to the top surface of the fourth lens with a fourth adhesive, and an IR film is attached to the bottom surface of the fourth lens; the IR film is attached to the top surface of the image sensor with a first adhesive.

[0017] Furthermore, the widths of the first, second, third, and fourth lenses are all the same.

[0018] Furthermore, the first lens includes a first glass and a first lens;

[0019] The first aperture is disposed on the top surface of the first glass; the bottom surface of the first glass is disposed on the top plane of the first lens; the two sides of the bottom concave surface of the first lens are attached to the top surface of the second lens by the second adhesive; the thickness of the first glass is in the range of 50~1000um.

[0020] Furthermore, the second lens includes a second lens and a second glass;

[0021] The top convex surface of the second lens is adhered to the bottom concave surface of the first lens by a second adhesive, and the bottom plane of the second lens is disposed on the top surface of the second glass; the bottom surface of the second glass is adhered to the third lens by a third adhesive; the thickness of the second glass is in the range of 50~1000um.

[0022] Furthermore, the third lens includes a third glass and a third lens;

[0023] The top surface of the third glass is provided with a second aperture, and it is adhered to the bottom surface of the second glass by a third adhesive. The bottom surface of the third glass is set on the top plane of the third lens. The two sides of the bottom convex surface of the third lens are adhered to the fourth lens by a fourth adhesive. The thickness of the third glass is in the range of 50~1000um.

[0024] Furthermore, the fourth lens includes a fourth lens and a fourth glass;

[0025] The top concave surface of the fourth lens is attached to the bottom convex surface of the third lens by a fourth adhesive; the bottom plane of the fourth lens is set on the top surface of the fourth glass, and an IR film is applied to the bottom surface of the fourth glass; the thickness of the fourth glass is in the range of 50~1000um.

[0026] Compared with the prior art, the present invention has the following beneficial technical effects:

[0027] This invention provides a miniature dual-lens module, including two sets of lenses and an image sensor. The two sets of lenses are arranged side-by-side on the bottom of the image sensor and are bonded to the image sensor with a first adhesive. Both sets of lenses are surrounded by a light-shielding black film. A gap exists between the two sets of lenses, filled with the light-shielding black film. By arranging the two sets of lenses side-by-side on the image sensor, this design significantly improves space utilization, enabling the entire module to be miniaturized while maintaining high performance. The light-shielding black film surrounding both sets of lenses and the gap effectively reduces interference from external light, improving image clarity and contrast.

[0028] Furthermore, the surface area of ​​the image sensor is larger than the bottom contact area of ​​the two lenses. The larger sensor area makes it easier to align and fix the lenses with the sensor, reducing the complexity and cost of the manufacturing process.

[0029] Furthermore, the lens includes a first lens, a second lens, a third lens, and a fourth lens; the top surface of the first lens has a first aperture stop; the bottom surface of the first lens is adhered to the top surface of the second lens with a second adhesive; the bottom surface of the second lens is adhered to the top surface of the third lens with a third adhesive, the bottom surface of the third lens is adhered to the top surface of the fourth lens with a fourth adhesive, and an IR film is applied to the bottom surface of the fourth lens; the IR film is adhered to the top surface of the image sensor with a first adhesive. Through the careful design and combination of the first to fourth lenses, image quality can be significantly optimized. Each lens layer can specifically refract and focus light, thereby reducing aberrations and chromatic aberrations, and improving image sharpness and color reproduction. Applying an IR film to the bottom surface of the fourth lens can effectively block infrared light from entering the image sensor, avoiding the impact of infrared interference on image quality. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the micro dual-lens module structure in an embodiment of this utility model;

[0031] Figure 2 This is a schematic diagram of the lens structure in an embodiment of the present utility model;

[0032] In the diagram: 1. Lens; 2. First aperture stop; 3. Light-blocking black film; 4. First adhesive; 5. Image sensor; 6. Second adhesive; 7. Third adhesive; 8. Second aperture stop; 9. Fourth adhesive; 10. IR film; 11. First lens; 12. Second lens; 13. Third lens; 14. Fourth lens; 111. First glass; 112. First lens; 121. Second lens; 122. Second glass; 131. Third glass; 132. Third lens; 141. Fourth lens; 142. Fourth glass. Detailed Implementation

[0033] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0034] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, system, product, or device that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, products, or devices.

[0035] The present invention will now be described in further detail with reference to the accompanying drawings:

[0036] The purpose of this invention is to provide a miniature dual-lens module to solve the technical problem that dual-lens modules in the prior art cannot be miniaturized.

[0037] See Figure 1In one embodiment of the present invention, a miniature dual-lens module is provided, including two sets of lenses 1 and an image sensor 5; the bottom of the two sets of lenses 1 are arranged side by side on the image sensor 5, and the two sets of lenses 1 and the image sensor 5 are bonded together by a first adhesive 4; a light-shielding black film 3 is wrapped around the periphery of the two sets of lenses 1; a gap is provided between the two sets of lenses 1, and the gap is filled with the light-shielding black film 3.

[0038] Specifically, the surface area of ​​the image sensor 5 is larger than the bottom contact area of ​​the two lenses 1.

[0039] Specifically, both sets of lenses 1 have a first aperture stop 2 on their top sides.

[0040] This embodiment employs a design where two sets of lenses are arranged side-by-side on the image sensor, achieving miniaturization of the module and facilitating integration into small electronic devices. The surface area of ​​the image sensor 5 is larger than the bottom contact area of ​​the two sets of lenses 1, providing more space for the arrangement of the lenses and apertures, while also contributing to improved light sensitivity and image quality. Both sets of lenses 1 are surrounded by a light-shielding black film 3, effectively reducing interference from external light and improving image clarity and contrast.

[0041] The gap between the lenses 1 is also filled with a light-blocking black film 3, which further prevents light crosstalk between the lenses and ensures the stability of the image. Each of the two sets of lenses 1 has a first aperture 2 on both sides of its top, used to transmit the image signals captured by the lenses to the image sensor 5 or other processing units.

[0042] Specifically, in this embodiment, the two sets of lenses 1 have the same structure.

[0043] Among them, according to Figure 2 As shown, lens 1 includes a first lens 11, a second lens 12, a third lens 13, and a fourth lens 14;

[0044] The top surface of the first lens 11 is provided with a first aperture 2; the bottom surface of the first lens 11 is attached to the top surface of the second lens 12 by a second adhesive 6; the bottom surface of the second lens 12 is attached to the top surface of the third lens 13 by a third adhesive 7, the bottom surface of the third lens 13 is attached to the top surface of the fourth lens 14 by a fourth adhesive 9, and an IR film 10 is attached to the bottom surface of the fourth lens 14; the IR film 10 is attached to the top surface of the image sensor 5 by a first adhesive 4.

[0045] Specifically, the widths of the first lens 11, the second lens 12, the third lens 13, and the fourth lens 14 are all the same.

[0046] The first lens 11 includes a first glass 111 and a first lens 112;

[0047] The first aperture 2 is disposed on the top surface of the first glass 111; the bottom surface of the first glass 111 is disposed on the top plane of the first lens 112, and the two sides of the bottom concave surface of the first lens 112 are attached to the top surface of the second lens 12 by the second adhesive 6; the thickness of the first glass 111 is in the range of 50~1000um.

[0048] The second lens 12 includes a second lens 121 and a second glass 122;

[0049] The top convex surfaces of the second lens 121 are adhered to the bottom concave surfaces of the first lens 112 by the second adhesive 6. The bottom plane of the second lens 121 is disposed on the top surface of the second glass 122. The bottom surface of the second glass 122 is adhered to the third lens 13 by the third adhesive 7. The thickness of the second glass 122 is in the range of 50~1000um.

[0050] The third lens 13 includes a third glass 131 and a third lens 132;

[0051] The top surface of the third glass 131 is provided with a second aperture 8, and is attached to the bottom surface of the second glass 122 by a third adhesive 7. The bottom surface of the third glass 131 is set on the top plane of the third lens 132. The two sides of the bottom convex surface of the third lens 132 are attached to the fourth lens 14 by a fourth adhesive 9. The thickness of the third glass 131 is in the range of 50~1000um.

[0052] The fourth lens 14 includes a fourth lens 141 and a fourth glass 142;

[0053] The top concave surface of the fourth lens 141 is attached to both sides of the bottom convex surface of the third lens 132 by the fourth adhesive 9; the bottom plane of the fourth lens 141 is set on the top surface of the fourth glass 142, and the bottom surface of the fourth glass is covered with an IR film 10; the thickness of the fourth glass 142 is in the range of 50~1000um.

[0054] In this embodiment, the first glass 111 and the first lens 112, the second lens 121 and the second glass 122, the third glass 131 and the third lens 132, and the fourth lens 141 and the fourth glass 142 are combined and set by photolithography and nanoimprinting processes, respectively. The first aperture 2 is etched on the upper surface of the first glass 111 by photolithography. In this embodiment, the thickness of the first adhesive 4, the second adhesive 6, the third adhesive 7 and the fourth adhesive 9 is between 0.05 and 500 μm.

[0055] The operating principle of the miniature dual-lens module provided in this embodiment is as follows:

[0056] When light enters the lens from the outside, it first passes through the first lens 11. The first lens 11 consists of a first glass 111 and a first lens 112, wherein the first lens 112 has a concave bottom design for initial focusing of light.

[0057] The focused light continues to pass through the second lens 12, which consists of a second lens 121 and a second glass 122. The top convex surface of the second lens 121 is in close contact with the bottom concave surface of the first lens 112, further focusing and adjusting the light.

[0058] Next, the light enters the third lens 13, which consists of a third glass 131 and a third lens 132. The convex bottom design of the third lens 132 helps to further adjust the focal point of the light, so that it is projected onto the fourth lens 14 more accurately.

[0059] Finally, the light passes through the fourth lens 14, which consists of a fourth lens 141 and a fourth glass 142. The top concave surface of the fourth lens 141 fits tightly against the bottom convex surface of the third lens 132, ensuring that the light can be accurately and clearly projected onto the image sensor 5.

[0060] The light rays, focused by the lens, are projected onto the photosensitive element of the image sensor 5. The image sensor 5 is able to receive and convert this light rays into electrical signals.

[0061] These electrical signals are then transmitted to a processing unit for further processing and analysis to generate visualized image output.

[0062] In this embodiment, the miniature dual-lens module includes two sets of lenses 1 with identical structures, which can work together to achieve dual capture of the same scene or capture from different angles.

[0063] In summary, this utility model provides a miniature dual-lens module. The two lenses 1 in the miniature dual-lens module are wafer-level optical lenses. The lens manufacturing process adopts nanoimprint technology, which imprints the lens surface shape on wafer-level glass, minimizing the lens size to the extreme. In addition, the two lenses are innovatively attached to a single sensor. Compared with traditional dual-lens modules, the size is greatly reduced, thus enabling the miniaturized dual-lens module to be applied in the medical and industrial fields, enriching the application scenarios of dual-lens modules.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of this utility model. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model should be covered within the protection scope of the claims of this utility model.

Claims

1. A miniature dual-lens module, characterized in that, It includes two sets of lenses (1) and an image sensor (5); The bottom of the two sets of lenses (1) are arranged side by side on the image sensor (5), and the two sets of lenses (1) are bonded to the image sensor (5) by the first glue (4); Both lenses (1) are wrapped with a light-blocking black film (3). A gap is provided between the two sets of lenses (1), and the gap is filled with a light-blocking black film (3).

2. The miniature dual-lens module according to claim 1, characterized in that, The surface area of ​​the image sensor (5) is larger than the bottom contact area of ​​the two lenses (1).

3. A miniature dual-lens module according to claim 1, characterized in that, Both lenses (1) have a first aperture stop (2) at the top.

4. A miniature dual-lens module according to claim 1, characterized in that, The two sets of lenses (1) have the same structure.

5. A miniature dual-lens module according to claim 4, characterized in that, The lens (1) includes a first lens (11), a second lens (12), a third lens (13) and a fourth lens (14). The top surface of the first lens (11) is provided with a first aperture (2); the bottom surface of the first lens (11) is attached to the top surface of the second lens (12) by a second adhesive (6); the bottom surface of the second lens (12) is attached to the top surface of the third lens (13) by a third adhesive (7), the bottom surface of the third lens (13) is attached to the top surface of the fourth lens (14) by a fourth adhesive (9), and an IR film (10) is attached to the bottom surface of the fourth lens (14); the IR film (10) is attached to the top surface of the image sensor (5) by a first adhesive (4).

6. A miniature dual-lens module according to claim 5, characterized in that, The widths of the first lens (11), the second lens (12), the third lens (13), and the fourth lens (14) are all the same.

7. A miniature dual-lens module according to claim 5, characterized in that, The first lens (11) includes a first glass (111) and a first lens (112); The first aperture (2) is respectively disposed on the top surface of the first glass (111); the bottom surface of the first glass (111) is disposed on the top plane of the first lens (112); the bottom concave surface of the first lens (112) is attached to the top surface of the second lens (12) by the second glue (6); the thickness of the first glass (111) is in the range of 50~1000um.

8. A miniature dual-lens module according to claim 7, characterized in that, The second lens (12) includes a second lens (121) and a second glass (122); The top convex surfaces of the second lens (121) are attached to the bottom concave surfaces of the first lens (112) by the second adhesive (6), and the bottom plane of the second lens (121) is disposed on the top surface of the second glass (122); the bottom surface of the second glass (122) is attached to the third lens (13) by the third adhesive (7); the thickness of the second glass (122) is in the range of 50~1000um.

9. A miniature dual-lens module according to claim 8, characterized in that, The third lens (13) includes a third glass (131) and a third lens (132). The top surface of the third glass (131) is provided with a second aperture (8), and is attached to the bottom surface of the second glass (122) by a third adhesive (7). The bottom surface of the third glass (131) is set on the top plane of the third lens (132). The two sides of the bottom convex surface of the third lens (132) are attached to the fourth lens (14) by a fourth adhesive (9). The thickness of the third glass (131) is in the range of 50~1000um.

10. A miniature dual-lens module according to claim 9, characterized in that, The fourth lens (14) includes a fourth lens (141) and a fourth glass (142). The top concave surface of the fourth lens (141) is attached to both sides of the bottom convex surface of the third lens (132) by the fourth adhesive (9); the bottom plane of the fourth lens (141) is set on the top surface of the fourth glass (142), and the bottom surface of the fourth glass is covered with an IR film (10); the thickness of the fourth glass (142) is in the range of 50~1000um.

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