Optical module and endoscope

Abstract

The utility model provides an optical assembly and an endoscope, the optical assembly comprises a lens cone, the lens cone is provided with a mounting cavity penetrating through the lens cone, and the mounting cavity is of a columnar structure extending along a preset direction; the lenses are sequentially arranged in the mounting cavity at intervals in the preset direction, and the edge of each lens is in contact fit with the inner wall of the mounting cavity; the tunable lens is provided with a surface with adjustable curvature; the supporting structure is provided with a lens mounting part, the tunable lens is mounted on the lens mounting part, at least part of the surface of the supporting structure is matched with the inner wall of the mounting cavity in shape, and the supporting structure is arranged in the mounting cavity and is in contact fit with the inner wall of the mounting cavity. The optical assembly provided by the utility model solves the technical problem of poor imaging quality caused by poor concentricity between the tunable lens and other lenses of the optical assembly in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and more specifically, to an optical component and an endoscope. Background Technology

[0002] Traditional endoscopes typically have a fixed focal length, making it impossible to precisely adjust the focus according to the depth of the examined area or the different characteristics of the tissue. Adjustable-focus endoscopes, on the other hand, are high-performance endoscopic systems with adjustable focal lengths. By integrating advanced optical technology or mechanical adjustment systems, they can flexibly adjust the focal length, allowing operators to adjust the lens focal length and zoom the image according to different observation needs, thereby enabling observation of tissues at different depths.

[0003] A tunable lens is a lens whose surface curvature can be adjusted. By applying different driving voltages to it through a driving circuit, the radius of curvature of the tunable lens surface can be changed, thereby achieving the function of focusing. Compared with traditional zoom solutions that adjust the lens position mechanically, systems integrating tunable lenses can significantly reduce space occupation and have advantages such as fast focusing speed, unaffected by magnetic fields and gravity, and low power consumption.

[0004] The application of tunable lenses in endoscopic systems presents significant assembly challenges. Specifically, the shape, size, and other structural parameters of the endoscope components and tunable lenses differ. During assembly, different sized assembly sections must be designed on the endoscope tube for each component and tunable lens, requiring segmented assembly. This assembly method often makes it difficult to ensure the concentricity of the endoscope lenses in practical applications, resulting in poor endoscopic imaging quality.

[0005] It is evident that the related technologies suffer from poor image quality due to the concentricity difference between the tunable lens and other lenses in the optical components. Currently, no effective solution has been proposed to address this issue. Utility Model Content

[0006] The main objective of this invention is to provide an optical component and an endoscope to solve the technical problem of poor image quality caused by the concentricity difference between the tunable lens and other lenses in the optical component in related technologies.

[0007] To achieve the above objectives, according to one aspect of the present invention, an optical component is provided, comprising: a lens barrel having a mounting cavity extending through the lens barrel, the mounting cavity being a columnar structure extending along a preset direction; a plurality of lenses being sequentially and spaced apart within the mounting cavity along the preset direction, the edges of each lens contacting and engaging with the inner wall of the mounting cavity; an adjustable lens having a surface with adjustable curvature; and a support structure having a lens mounting portion, the adjustable lens being mounted on the lens mounting portion, at least a portion of the surface of the support structure matching the shape of the inner wall of the mounting cavity, the support structure being disposed within the mounting cavity and contacting and engaging with the inner wall of the mounting cavity.

[0008] Furthermore, the multiple lenses are divided into a first lens group and a second lens group, each of which includes multiple lenses. Among them, along a preset direction, an adjustable lens is located between the first lens group and the second lens group.

[0009] Furthermore, the optical component includes a separator; wherein the separator is disposed between two adjacent lenses to support the two lenses along a preset direction; or, the separator is disposed between the support structure and the adjacent lens to support the support structure and the lens along a preset direction.

[0010] Furthermore, the lens mounting part is a first groove set in the support structure, and a part of the adjustable lens is inserted into the first groove. The bottom of the first groove is provided with a light-transmitting hole. The support structure is also provided with a second groove, and the first groove is set at the bottom of the second groove. When the adjustable lens is inserted into the first groove, a glue groove is formed between the adjustable lens and the side wall of the second groove, and the glue groove is filled with glue material.

[0011] Furthermore, the optical component includes an aperture stop, which is mounted on one side of the support structure along a predetermined direction and in contact with the support structure.

[0012] Furthermore, the support structure is provided with a welding position, and the wiring terminal of the adjustable lens is electrically connected to the welding position. The welding position is used to electrically connect to the drive circuit board. The aperture stop is provided with a cut, in which the projection of the welding position along a preset direction falls into the cut.

[0013] Furthermore, the optical component also includes a housing, on which a mounting hole is provided extending through the housing in a preset direction, and the lens barrel is inserted into the lens barrel in the preset direction; wherein, the lens barrel and / or the housing are provided with a snap-fit ​​structure, and when the lens barrel is inserted into the mounting hole of the housing, the snap-fit ​​structure prevents the lens barrel from rotating circumferentially and / or moving axially relative to the housing; or, the inner wall of the housing and / or the outer wall of the lens barrel are provided with a wire passage groove, the wire passage groove extending in a preset direction, and the lens barrel is provided with a wire passage opening, the wire passage opening communicating with the wire passage groove and the internal space of the lens barrel, and the soldering position is electrically connected to the drive circuit board through a connecting element, the connecting element passing through the wire passage opening and the wire passage groove.

[0014] Furthermore, the optical component includes a light-transmitting protective element, which is installed at one end of the housing near the object side, and a first sealing material is filled between the light-transmitting protective element and the housing; or, if a wire passage is provided on the lens barrel, the wire passage is filled with a second sealing material.

[0015] Furthermore, the main structure of the support structure is circular, the adjustable lens is square, and a chamfer is provided at at least one corner of the support structure corresponding to the square structure.

[0016] According to another aspect of the present invention, an endoscope is provided, the endoscope including an optical component, the optical component being the optical component described above.

[0017] The optical component of this embodiment includes: a lens barrel, multiple lenses, a tunable lens, and a support structure. The lens barrel has a mounting cavity extending through it, and the mounting cavity is a columnar structure extending along a predetermined direction. Multiple lenses are sequentially spaced within the mounting cavity along the predetermined direction, with the edges of each lens contacting and engaging with the inner wall of the mounting cavity. The tunable lens has a surface with adjustable curvature. The support structure has a lens mounting portion, on which the tunable lens is mounted. At least a portion of the surface of the support structure matches the shape of the inner wall of the mounting cavity, and the support structure is disposed within the mounting cavity and contacts and engages with the inner wall of the mounting cavity. The optical component with the above-described structure supports the tunable lens through a support structure with a lens mounting portion. At least a portion of the surface of the support structure matches the shape of the inner wall of the mounting cavity. When multiple lenses and the support structure are mounted in the cylindrical mounting cavity, the edges of each lens and the edges of the support structure can contact and cooperate with the inner wall of the cylindrical mounting cavity, effectively ensuring the concentricity of multiple lenses and the tunable lens, thereby ensuring the imaging quality of the optical component. This solves the technical problem in related technologies where poor concentricity between the tunable lens and other lenses in the optical component leads to poor imaging quality. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0019] Figure 1 A cross-sectional schematic diagram of an embodiment of an endoscope using the optical components of this utility model;

[0020] Figure 2 This is a schematic diagram of the support structure of an embodiment of the optical component of this utility model;

[0021] Figure 3 This is a schematic diagram of the support structure, tunable lens, and aperture stop of an embodiment of the optical components of this utility model.

[0022] Figure 4 This is a schematic diagram of the support structure and the tunable lens after assembly, according to the first embodiment of the optical component of this utility model, from a first viewing angle.

[0023] Figure 5 This is a schematic diagram of the support structure and the tunable lens after assembly in the second view, representing the first embodiment of the optical component of this utility model.

[0024] Figure 6 This is a schematic diagram of the support structure and the tunable lens after assembly, representing a second embodiment of the optical components of this utility model, from a third-view perspective.

[0025] Figure 7 This is a schematic diagram of the support structure and the tunable lens after assembly, according to a second embodiment of the optical component of this utility model, in a fourth-angle view.

[0026] Figure 8 This is a schematic diagram of part of the structure of the endoscope of this utility model from a fifth perspective;

[0027] Figure 9 This is a schematic diagram of part of the structure of the endoscope of this utility model from a sixth-angle perspective;

[0028] Figure 10 This is a schematic diagram of part of the endoscope structure of this utility model from a seventh perspective.

[0029] The above figures include the following reference numerals:

[0030] 1. Lens barrel; 11. Mounting cavity; 2. Adjustable lens; 3. Support structure; 31. Lens mounting part; 32. Light transmission hole; 33. Second groove; 34. Glue groove; 35. Welding position; 36. Chamfered opening; 4. Separator; 5. Aperture stop; 51. Cutout; 6. Drive circuit board; 61. Connecting element; 62. Sensor component; 63. Steering prism; 7. Housing; 71. Snap-fit ​​structure; 72. Wire groove; 73. Light transmission protection component; 74. Illumination component mounting position; 75. Connection hole; 8. Protective shell; 10. Lens; 101. First lens group; 102. Second lens group. Detailed Implementation

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] Please refer to Figures 1 to 10 To achieve the above objectives, embodiments of this utility model provide an optical component comprising: a lens barrel 1, a plurality of lenses 10, an adjustable lens 2, and a support structure 3. The lens barrel 1 has a mounting cavity 11 extending through it, the mounting cavity 11 being a columnar structure extending along a predetermined direction; the plurality of lenses 10 are sequentially spaced within the mounting cavity 11 along the predetermined direction, with the edges of each lens 10 contacting and engaging with the inner wall of the mounting cavity 11; the adjustable lens 2 has a surface with adjustable curvature; the support structure 3 has a lens mounting portion 31, the adjustable lens 2 is mounted on the lens mounting portion 31, at least a portion of the surface of the support structure 3 matches the shape of the inner wall of the mounting cavity 11, and the support structure 3 is disposed within the mounting cavity 11 and contacts and engages with the inner wall of the mounting cavity 11.

[0033] The optical assembly with the above-described structure supports the tunable lens 2 through a support structure 3 with a lens mounting part 31. At least a portion of the surface of the support structure 3 matches the shape of the inner wall of the mounting cavity 11. When multiple lenses 10 and the support structure 3 are installed in the columnar mounting cavity 11, the edges of each lens 10 and the edges of the support structure 3 can contact and cooperate with the inner wall of the columnar mounting cavity 11, effectively ensuring the concentricity of multiple lenses 10 and the tunable lens 2, thereby ensuring the imaging quality of the optical assembly and solving the technical problem in related technologies where the concentricity difference between the tunable lens and other lenses in the optical assembly leads to poor imaging quality.

[0034] It should be noted that the edges of each of the above-mentioned lenses 10 abut against the inner wall of the mounting cavity 11. The form of each lens 10 mentioned here can be a bare lens or a combination of a bare lens and other supporting, positioning and other auxiliary structures.

[0035] For example, in one alternative embodiment, the lens 10 mentioned above refers to a bare lens, the edge of which abuts against the inner wall of the mounting cavity 11, thereby allowing direct contact and positioning of each bare lens through the inner wall of the mounting cavity 11.

[0036] For example, in another alternative embodiment, considering factors such as the reliability of lens 10 installation, the fit between the size of lens 10 and the mounting cavity 11, and the structural strength of lens 10, the lens 10 may include a bare lens and a support frame surrounding it. In this case, the structure consisting of the bare lens and the support frame is collectively referred to as lens 10.

[0037] It should be noted that the tunable lens 2 is a lens with adjustable surface curvature. During use, applying different driving voltages to the tunable lens 2 via a driving circuit changes the radius of curvature of its surface, thus achieving focusing and facilitating observation of targets at different distances. Compared to zoom solutions in related technologies that use control cams or drive motors to pull steel wires to adjust the lens position, using the tunable lens 2 for focusing effectively simplifies the optical system structure and reduces space occupation, making it particularly suitable for use in small / precision equipment with size constraints (such as endoscopes). In specific implementations, the tunable lens 2 can have different implementation principles, as long as it can adjust the surface curvature, such as piezoelectric controlled lenses, liquid lenses, etc.

[0038] In a preferred embodiment, the mounting cavity 11 is a cylindrical structure, and each lens 10 is a circular lens. The diameter of the circular lens matches the inner wall of the cylindrical structure. The edge of the support structure 3 is also circular, and its diameter matches the inner wall of the cylindrical structure. When the lens 10 and the support structure 3 are installed in the mounting cavity 11, the inner wall of the mounting cavity 11 matches the edge of the lens 10 and the edge of the support structure 3, thereby ensuring better coaxiality of the multiple lenses 10 and the adjustable lens 2. Of course, in other optional implementations, the mounting cavity 11 can also be other columnar structures, such as prisms, as long as they can match the shape of the edge of the lens 10 and the edge of the support structure 3, thereby ensuring the coaxiality of the lens 10 and the adjustable lens 2.

[0039] In actual implementation, the material of support structure 3 can be a PCB board or ceramic dyed with black dye to avoid surface stray light and reduce adverse interference to imaging.

[0040] In one specific embodiment, the plurality of lenses 10 are divided into a first lens group 101 and a second lens group 102. Both the first lens group 101 and the second lens group 102 include a plurality of lenses 10. The adjustable lens 2 is located between the first lens group 101 and the second lens group 102 along a preset direction.

[0041] Of course, in actual implementation, the relative positions of the first lens group 101, the second lens group 102, and the adjustable lens 2 can vary. For example, the adjustable lens 2 can be located on the same side of the first lens group 101 and the second lens group 102, or it can be located between the first lens group 101 and the second lens group 102. In the case where the adjustable lens 2 is located between the first lens group 101 and the second lens group 102, the adjustable lens 2 is completely hidden inside the lens barrel 1 after installation, making it difficult to touch or adjust its position. Therefore, in this structure, ensuring the concentricity of the first lens group 101, the second lens group 102, and the adjustable lens 2 is more difficult. In this embodiment, a support structure 3 is designed for the tunable lens 2. At least a portion of the surface of the support structure 3 matches the shape of the inner wall of the mounting cavity 11, and the two contact and cooperate to achieve accurate positioning of the tunable lens 2. At the same time, the inner wall of the mounting cavity 11 of the columnar structure of the lens barrel 1 contacts and cooperates with the edges of each lens 10 of the first lens group 101 and the second lens group 102 to accurately position each lens 10. This can effectively ensure the concentricity of the first lens group 101, the second lens group 102 and the tunable lens 2, and improve the imaging effect of the optical components.

[0042] Specifically, the optical component includes a separator 4; wherein the separator 4 is disposed between two adjacent lenses 10 to support the two lenses 10 in a preset direction; or, the separator 4 is disposed between the support structure 3 and the adjacent lens 10 to support the support structure 3 and the lens 10 in a preset direction.

[0043] By providing a separator 4 between two adjacent lenses 10 or between the support structure 3 and the lens 10, a supporting force along a preset direction can be provided to the corresponding lens 10 or support structure 3, thereby achieving a better positioning effect and preventing the support structure 3 or lens 10 from moving along the lens barrel 1, ensuring the imaging effect of the optical components. More importantly, the length of the separator 4 can be selected according to requirements, which can adjust the distance between adjacent lenses 10 or between adjustable lenses 2 and lens 10, thereby enabling more flexible assembly and adjustment of the optical components and facilitating the manufacturing of optical components of different specifications.

[0044] It should be noted that, in specific implementations, the shape of the separator 4 can vary, as long as it can provide support for the lens 10 and / or the support structure 3 along a predetermined direction. Examples include a cylindrical structure, multiple strip-shaped structures distributed along a circular trajectory, etc. In a preferred embodiment, the separator 4 is a spacer ring, which is a cylindrical structure, thereby providing a more balanced supporting force along the circumference of the lens 10 or the support structure 3, ensuring the support stability of the lens 10 and / or the support structure 3.

[0045] In this embodiment, the lens mounting part 31 is a first groove provided in the support structure 3. A part of the adjustable lens 2 is inserted into the first groove. The bottom of the first groove is provided with a light-transmitting hole 32. The support structure 3 is also provided with a second groove 33. The first groove is provided at the bottom of the second groove. When the adjustable lens 2 is inserted into the first groove, a glue groove 34 is formed between the adjustable lens 2 and the side wall of the second groove 33. The glue groove 34 is filled with glue material.

[0046] When the tunable lens 2 is inserted into the first groove, light can enter or exit the tunable lens 2 through the light-transmitting hole 32, thereby avoiding interference from the support structure 3 to the imaging of the optical components.

[0047] By using an embedded installation method combined with adhesive fixation, the reliability of the tunable lens 2's installation on the support structure 3 can be effectively improved. Specifically, by inserting the tunable lens 2 into the first groove, the inner wall of the first groove can limit and fix the tunable lens. Then, by injecting or applying adhesive in the adhesive groove 34, the stability of the connection between the tunable lens 2 and the support structure 3 can be further improved, preventing the tunable lens 2 from detaching from the first groove due to vibration, impact, temperature difference, etc., thereby ensuring the structural reliability of the optical component. In actual implementation, the adhesive groove 34 can take various forms; it can be continuous or discontinuous, as long as it allows for injection and application of adhesive. Specifically, the type of adhesive material can also be flexibly selected according to the actual situation, as long as it can improve the installation strength of the tunable lens 2 on the support structure 3.

[0048] In addition, the optical components include an aperture stop 5, which is mounted on one side of the support structure 3 along a preset direction and is in contact with the support structure 3.

[0049] In practical use, the aperture stop 5 controls the light flux entering the system and the imaging depth of field by limiting the solid angle of the imaging beam at the on-axis object point, directly affecting the image plane illumination and resolution. By placing the aperture stop 5 on one side of the support structure 3 and making it in contact with the support structure 3, the support structure 3 can be used to position the aperture stop 5. By controlling the thickness of the support structure, the distance between the aperture stop 5 and the tunable lens 2 can be controlled, thereby meeting the positional requirements of the aperture stop 5. This not only facilitates the installation and positioning of the aperture stop 5, but also effectively ensures the accuracy of the installation position of the aperture stop 5, thus guaranteeing the imaging effect of the optical components.

[0050] In this embodiment, the support structure 3 is provided with a welding position 35, and the wiring terminal of the adjustable lens 2 is electrically connected to the welding position 35. The welding position 35 is used to electrically connect to the drive circuit board 6. The aperture stop 5 is provided with a cutout 51, wherein the projection of the welding position 35 along a preset direction falls into the cutout 51.

[0051] By setting a notch 51 on the aperture stop 5, and the projection of the welding position 35 along the preset direction falls into the notch 51, the welding position 35 can be avoided by the notch 51. Thus, when the aperture stop 5 is attached to one side of the support structure 3, the aperture stop 5 will not interfere with the welding position 35, thus avoiding adverse effects on the imaging quality.

[0052] The electrical connection method between the terminal of the tunable lens 2 and the soldering position 35 can be flexibly selected according to the requirements, such as direct soldering, flying wire connection, etc.

[0053] Specifically, the optical assembly also includes a housing 7, which has a mounting hole extending through the housing 7 in a preset direction. The lens barrel 1 is inserted into the lens barrel 1 in the preset direction. The lens barrel 1 and / or the housing 7 are provided with a snap-fit ​​structure 71. When the lens barrel 1 is inserted into the mounting hole of the housing 7, the snap-fit ​​structure 71 prevents the lens barrel 1 from rotating circumferentially and / or moving axially relative to the housing 7. Alternatively, the inner wall of the housing 7 and / or the outer wall of the lens barrel 1 are provided with a wire passage groove 72. The wire passage groove 72 extends in a preset direction. The lens barrel 1 is provided with a wire passage opening. The wire passage opening connects the wire passage groove 72 with the internal space of the lens barrel 1. The soldering position 35 is electrically connected to the drive circuit board 6 through a connecting element 61. The connecting element 61 passes through the wire passage opening and the wire passage groove 72.

[0054] In practical implementation, the connecting element 61 can have various structural forms, as long as it can achieve electrical connection between the drive circuit board 6 and the soldering position 35. For example, it can be a wire, a flexible circuit board, etc. In a preferred embodiment, the connecting element 61 is a flexible circuit board, which can reduce the use of wire harnesses and reduce space occupation, making it particularly suitable for small devices such as endoscopes. Moreover, the flexible circuit board can be bent and routed more flexibly, making it easier to route wires in narrow / bent positions such as wire passages and wire passage slots 72.

[0055] In this embodiment, the optical component includes a light-transmitting protective member 73, which is installed at one end of the housing 7 near the object side, and a first sealing material is filled between the light-transmitting protective member 73 and the housing 7; or, if a wire passage is provided on the lens barrel 1, the wire passage is filled with a second sealing material.

[0056] By designing a light-transmitting protective element 73 at the end of the housing 7 near the object side, and filling the space between the light-transmitting protective element 73 and the housing 7 with a first sealing material, the protection effect on the internal structure of the optical components can be effectively improved, and the sealing performance can be enhanced. By filling the wire passage with a second sealing material, the sealing performance of the lens barrel 1 can be further improved, preventing moisture from entering the lens barrel 1 and ensuring that the optical components have a more reliable imaging effect. In actual implementation, the specific types of the first and second sealing materials can be flexibly selected, as long as the sealing effect can be improved; for example, various types of sealant can be selected.

[0057] In another optional embodiment, the main structure of the support structure 3 is circular, the adjustable lens 2 is square, and the support structure 3 is provided with a chamfered opening 36 at at least one corner corresponding to the square structure.

[0058] By providing chamfered openings 36 at the corners corresponding to the corners of the support structure 3 and the tunable lens 2, the size occupied by the support structure can be further reduced, allowing for a smaller overall optical component design. This is particularly beneficial for applications in small, precision equipment such as endoscopes. Furthermore, the chamfered openings 36 prevent interference between the terminals of the tunable lens 2 and the support structure 3 during assembly, ensuring the assembly accuracy of the tunable lens 2 and thus guaranteeing the imaging effect of the optical component. It should be noted that because of the chamfered openings 36 on the support structure 3, the minimum diameter of the support structure 3 is smaller than the diagonal length of the tunable lens 2.

[0059] In practice, the chamfered opening 36 can take many different forms, such as regular cuts (arc cuts, polygonal cuts, etc.) and irregular cuts.

[0060] In addition, embodiments of this utility model also provide an endoscope, which includes an optical component, wherein the optical component is the optical component described above.

[0061] In an optional embodiment, the drive circuit board 6 is equipped with a sensor 62 (e.g., a CMOS sensor). The photosensitive surface of the sensor 62 is oriented at an angle (e.g., perpendicular) to a preset direction. The optical assembly also includes a steering prism 63, which is mounted at the sensor 62 to reflect light emitted from the endoscope barrel 1 onto the photosensitive surface of the sensor 62. This allows for more flexible arrangement of the sensor 62's angle, reducing the space occupied in the endoscope's internal radial direction and thus enabling a smaller endoscope size. Within a limited structural size, a larger imaging screen size is achieved. The drive circuit board 6 integrates the driving device for the sensor 62 and the driving device for the tunable lens 2.

[0062] To facilitate the use of the endoscope in low-light environments, in this embodiment, the housing 7 of the optical components of the endoscope is also provided with an illumination component mounting position 74. The illumination component mounting position 74 is located at the end of the housing 7 near the object side, so that an illumination component is installed on the illumination component mounting position 74 to provide illumination light for the endoscope.

[0063] The endoscope also includes a transmission component. The housing 7 of the optical component is provided with a connection hole 75. The transmission component is connected to the optical component through the connection hole 75. The endoscope also includes a protective shell 8, which is fitted onto the optical component and the transmission component to protect both of them and their connection points.

[0064] The endoscope with the above-described structure uses a support structure 3 to assist in supporting and positioning the tunable lens 2. Under the control of the rear drive circuit board 6, it works in conjunction with the optical lens assembly to achieve automatic focusing. The designed support structure prevents damage to the tunable lens 2 from stress during assembly or operation, while significantly reducing the assembly size of the tunable lens 2. It can be integrated with the lens assembly and aperture stop 5 into the endoscope tube 1, avoiding the problems of poor airtightness and large eccentricity and tilt tolerances between the front and rear lens assemblies, which would otherwise negatively impact image quality. Therefore, the endoscope with this structure possesses excellent optical performance while having a more compact tip, allowing for movement and observation within narrow internal organs, thus adapting to various clinical diagnostic scenarios. Good airtightness ensures that the proposed endoscope supports postoperative low-temperature plasma and high-temperature high-pressure sterilization, effectively reducing the risk of infection.

[0065] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0066] The optical components of this embodiment include: a lens barrel 1, a plurality of lenses 10, an adjustable lens 2, and a support structure 3. The lens barrel 1 has a mounting cavity 11 extending through it, and the mounting cavity 11 is a columnar structure extending along a predetermined direction. The plurality of lenses 10 are sequentially spaced within the mounting cavity 11 along the predetermined direction, and the edges of each lens 10 contact and engage with the inner wall of the mounting cavity 11. The adjustable lens 2 has a surface with adjustable curvature. The support structure 3 has a lens mounting portion 31, on which the adjustable lens 2 is mounted. At least a portion of the surface of the support structure 3 matches the shape of the inner wall of the mounting cavity 11. The support structure 3 is disposed within the mounting cavity 11 and contacts and engages with the inner wall of the mounting cavity 11. The optical assembly with the above-described structure supports the tunable lens 2 through a support structure 3 with a lens mounting part 31. At least a portion of the surface of the support structure 3 matches the shape of the inner wall of the mounting cavity 11. When multiple lenses 10 and the support structure 3 are installed in the columnar mounting cavity 11, the edges of each lens 10 and the edges of the support structure 3 can contact and cooperate with the inner wall of the columnar mounting cavity 11, effectively ensuring the concentricity of multiple lenses 10 and the tunable lens 2, thereby ensuring the imaging quality of the optical assembly and solving the technical problem in related technologies where the concentricity difference between the tunable lens and other lenses in the optical assembly leads to poor imaging quality.

[0067] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0068] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0069] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application 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 this application described herein can be implemented, for example, 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, method, system, product, or apparatus 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, methods, products, or apparatus.

[0070] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An optical component, characterized in that, include: The lens barrel (1) has a mounting cavity (11) that extends through the lens barrel (1), and the mounting cavity (11) is a columnar structure that extends along a preset direction; Multiple lenses (10) are arranged sequentially and spaced apart in the mounting cavity (11) along the preset direction, and the edge of each lens (10) is in contact with the inner wall of the mounting cavity (11). Adjustable lens (2), said adjustable lens (2) having a surface with adjustable curvature; A support structure (3) has a lens mounting part (31), the adjustable lens (2) is mounted on the lens mounting part (31), at least a portion of the surface of the support structure (3) matches the shape of the inner wall of the mounting cavity (11), the support structure (3) is disposed in the mounting cavity (11) and contacts and cooperates with the inner wall of the mounting cavity (11).

2. The optical component according to claim 1, characterized in that, The plurality of lenses (10) are divided into a first lens group (101) and a second lens group (102), both of which include a plurality of lenses (10). The adjustable lens (2) is located between the first lens group (101) and the second lens group (102) along the preset direction.

3. The optical component according to claim 1, characterized in that, The optical component includes a separator (4); wherein the separator (4) is disposed between two adjacent lenses (10) to support the two lenses (10) along the preset direction; or, the separator (4) is disposed between the support structure (3) and the adjacent lens (10) to support the support structure (3) and the lens (10) along the preset direction.

4. The optical component according to claim 1, characterized in that, The lens mounting part (31) is a first groove provided in the support structure (3). A part of the adjustable lens (2) is inserted into the first groove. The bottom of the first groove is provided with a light-transmitting hole (32). The support structure (3) is also provided with a second groove (33). The first groove is provided at the bottom of the second groove. When the adjustable lens (2) is inserted into the first groove, a glue groove (34) is formed between the adjustable lens (2) and the side wall of the second groove (33). The glue groove (34) is filled with glue material.

5. The optical component according to claim 1, characterized in that, The optical component includes an aperture stop (5), which is mounted on one side of the support structure (3) along the preset direction and is in contact with the support structure (3).

6. The optical component according to claim 5, characterized in that, The support structure (3) is provided with a welding position (35), and the terminal of the adjustable lens (2) is electrically connected to the welding position (35). The welding position (35) is used to electrically connect to the drive circuit board (6). The aperture stop (5) is provided with a cut (51), wherein the projection of the welding position (35) along the preset direction falls into the cut (51).

7. The optical component according to claim 6, characterized in that, The optical component further includes a housing (7), which has a mounting hole extending through it along a predetermined direction. The lens barrel (1) is inserted into the lens barrel (1) along the predetermined direction. The lens barrel (1) and / or the housing (7) are provided with a snap-fit ​​structure (71). When the lens barrel (1) is inserted into the mounting hole of the housing (7), the snap-fit ​​structure (71) prevents the lens barrel (1) from rotating circumferentially and / or moving axially relative to the housing (7); or, The inner wall of the housing (7) and / or the outer wall of the lens barrel (1) are provided with a wire passage groove (72). The wire passage groove (72) extends along the preset direction. The lens barrel (1) is provided with a wire passage opening. The wire passage opening connects the wire passage groove (72) with the internal space of the lens barrel (1). The welding position (35) is electrically connected to the drive circuit board (6) through a connecting element (61). The connecting element (61) passes through the wire passage opening and the wire passage groove (72).

8. The optical component according to claim 7, characterized in that, The optical component includes a light-transmitting protective element (73), which is mounted on one end of the housing (7) near the object side, and a first sealing material is filled between the light-transmitting protective element (73) and the housing (7); or, When the lens barrel (1) is provided with the wire passage, the wire passage is filled with a second sealing material.

9. The optical component according to any one of claims 1 to 8, characterized in that, The main structure of the support structure (3) is circular, the adjustable lens (2) is square, and the support structure (3) is provided with a chamfered opening (36) at at least one corner corresponding to the square structure.

10. An endoscope, characterized in that, The endoscope includes an optical component, which is the optical component according to any one of claims 1 to 9.

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