Zoom microscope eyepiece with built-in variable power lens

Abstract

This utility model relates to the field of microscope equipment technology, specifically to a zoom microscope eyepiece with a built-in zoom lens assembly. It includes an upper eyepiece and a lower eyepiece. A connecting post is fixedly connected to one side of the lower end of the upper eyepiece, and the upper end of the lower eyepiece is fixedly connected to the lower end of the connecting post. The upper and lower eyepieces are coaxial. A zoom component is disposed between the upper and lower eyepieces, used to switch between different magnifications of the eyepiece. A zoom component is disposed at the lower end of the lower eyepiece, used to adjust the field of view and magnification, achieving continuous scaling of the microscopic image. The zoom component includes a zoom swivel disposed outside the connection between the upper and lower eyepieces, with an internal gear disk fixedly connected to the center of the inner wall of the zoom swivel. Compared to the prior art, this application solves the problems of fixed eyepiece magnification, lack of continuous adjustment capability, and insufficient structural sealing in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of microscope equipment technology, and in particular to a zoom microscope eyepiece with a built-in zoom lens group. Background Technology

[0002] As a basic precision observation device, microscopes are widely used in various technical fields such as biological research, materials analysis, and microelectronics manufacturing. To meet the needs of different observation scenarios for varying imaging magnification, existing microscopes are usually equipped with a zoom structure, allowing users to magnify or reduce the image. However, in traditional designs, the zoom function of microscopes is mostly integrated into the objective lens group or intermediate lens group, while the eyepiece body structure is usually fixed magnification, making it difficult to provide more flexible image adjustment capabilities.

[0003] In practical use, when users need to adjust the overall magnification based on factors such as target size and observation accuracy, they often need to replace eyepieces with different magnifications or readjust the optical path parameters of the whole machine. This is not only cumbersome and inefficient, but may also affect imaging stability, which is especially unfavorable for teaching demonstrations, industrial inspections and other scenarios that require frequent magnification switching.

[0004] In addition, although some high-end eyepieces have introduced zoom function, they mostly use a simple lens switching structure and lack the ability to continuously adjust the field of view of the image. That is, they cannot achieve a smooth image scaling effect similar to "continuous zoom". This type of structure not only fails to balance the precision of magnification adjustment and ease of operation, but also, in the current technology, eyepiece solutions that integrate multiple magnification switching and continuous zoom functions are relatively rare, resulting in limited flexibility of microscopic observation.

[0005] Even more problematic is that some continuous zoom eyepieces have gaps between the sliding components and the outside environment, which can easily allow dust or impurities to enter the optical path, affecting image quality and the lifespan of the mechanism.

[0006] Based on the above problems, we disclose a zoom microscope eyepiece with a built-in zoom lens group to meet the needs of existing eyepieces with fixed magnification, lack of continuous adjustment capability, and insufficient structural sealing. Utility Model Content

[0007] In view of this, the purpose of this utility model is to propose a zoom microscope eyepiece with a built-in zoom lens group to solve the problems of fixed magnification, lack of continuous adjustment capability and insufficient structural sealing of the existing eyepiece.

[0008] To achieve the above objectives, this utility model provides a zoom microscope eyepiece with a built-in zoom lens assembly, comprising an upper eyepiece and a lower eyepiece. A connecting post is fixedly connected to one side of the lower end of the upper eyepiece, and the upper end of the lower eyepiece is fixedly connected to the lower end of the connecting post. The upper and lower eyepieces are coaxial. A zoom component is provided between the upper and lower eyepieces to enable switching between different magnifications of the eyepiece. A zoom component is provided at the lower end of the lower eyepiece to adjust the field of view and magnification, thereby achieving continuous scaling of the microscopic image.

[0009] Preferably, the zoom assembly includes a zoom turntable disposed outside the connection between the upper and lower ends of the eyepiece. An internal gear disk is fixedly connected to the middle of the inner wall of the zoom turntable. An external gear frame is meshed with the inner wall of the internal gear disk. A mounting bracket is fixedly connected to the inner wall of the external gear frame. A rotating shaft is fixedly connected to the middle of the mounting bracket. The upper and lower ends of the rotating shaft are respectively engaged and rotatably connected to the upper and lower ends of the eyepiece.

[0010] Preferably, the mounting bracket is provided with multiple zoom lenses at uniform angular intervals on its exterior, and the zoom lenses have different magnifications. The distance between the rotating shaft and the zoom lens is equal to the distance between the rotating shaft and the internal imaging channels at the upper and lower ends of the eyepiece.

[0011] Preferably, the inner wall of the zoom turntable is fixedly connected to the upper and lower ends of the turntable, and the two turntables are respectively engaged and rotatably connected to the upper end and the lower end of the eyepiece.

[0012] Preferably, the inner wall of the zoom turntable is fixedly connected to the upper and lower ends of the first telescopic springs, and one end of each of the two first telescopic springs is fixedly connected to a first limiting post. The outer walls of the upper and lower ends of the eyepiece are provided with three first limiting grooves, the three first limiting grooves are spaced at the same angle, and the end of the first limiting post away from the first telescopic spring abuts against the inside of the first limiting groove.

[0013] Preferably, the zoom assembly includes a sliding frame that is slidably connected to the interior of the lower end of the eyepiece, a groove is provided on one side of the outer wall of the lower end of the eyepiece, one end of the sliding frame is slidably connected to the interior of the groove, a zoom turntable is sleeved on the exterior of the lower end of the eyepiece, and one end of the sliding frame is fixedly connected to the zoom turntable.

[0014] Preferably, multiple second limiting grooves are provided on both sides of the inner wall of the slide groove, and a second telescopic spring is fixedly connected to both sides of the sliding frame at the position inside the slide groove. A second limiting post is fixedly connected to one end of the second telescopic spring, and one end of the second limiting post abuts against the inside of the second limiting groove.

[0015] Preferably, a sealing and telescopic layer is fixedly connected to both the upper and lower ends of the zoom turntable, and the ends of the two sealing and telescopic layers away from the zoom turntable are fixedly connected to the lower end of the eyepiece.

[0016] The beneficial effects of this utility model are:

[0017] 1. This zoom microscope eyepiece with built-in zoom lens group integrates a zoom component inside the eyepiece body, enabling multiple magnification switching within the same eyepiece. Users can adjust the magnification without frequently changing eyepieces of different magnifications, significantly improving operational efficiency and reducing problems such as optical axis shift and decreased imaging stability caused by changing eyepieces. It is especially suitable for teaching demonstrations, scientific research observations, and industrial inspections that require rapid switching between different magnifications.

[0018] 2. This zoom microscope eyepiece with built-in zoom lens group has a zoom component that is further set up on the basis of zoom. It can achieve continuous and smooth adjustment of field of view and magnification at a fixed magnification. It overcomes the defects of existing high-end eyepieces that can only perform discrete magnification switching and lack continuous zoom capability. It enables microscopic observation to take into account both the precision of magnification adjustment and the coherence of imaging, and improves the flexibility and applicability of observation.

[0019] 3. The zoom microscope eyepiece with built-in zoom lens assembly has multi-level limiting and elastic positioning structures on both the zoom and zoom components. It can achieve precise locking of position during magnification switching and zoom adjustment, preventing magnification or focal length shift due to accidental touch, thereby ensuring the stability and repeatability of imaging and facilitating consistent observation results.

[0020] 4. The zoom microscope eyepiece with built-in zoom lens group has a sealed telescopic layer between the zoom turret and the lower end of the eyepiece. It can extend and retract during the focusing process, effectively preventing dust and impurities from entering the internal optical path of the eyepiece, avoiding contamination or damage to the optical components, extending the service life of the device, and ensuring the clarity and reliability of the microscopic imaging. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the present invention;

[0024] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 This is a three-dimensional structural diagram of the zoom component of this utility model;

[0026] Figure 5 for Figure 2 Enlarged view of point B in the middle;

[0027] Figure 6 This is a partial three-dimensional structural diagram of the zoom component of this utility model.

[0028] The diagram is marked as follows:

[0029] 1. Upper end of eyepiece; 2. Lower end of eyepiece; 3. Magnification turntable; 4. Zoom turntable; 5. Slide groove; 6. Internal gear plate; 7. Clamping plate; 8. First telescopic spring; 9. First limiting post; 10. First limiting groove; 11. External gear frame; 12. Mounting bracket; 13. Magnification lens; 14. Rotating shaft; 15. Sealing telescopic layer; 16. Second limiting groove; 17. Sliding frame; 18. Second telescopic spring; 19. Second limiting post; 20. Connecting post. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0031] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0032] like Figures 1 to 6As shown, a zoom microscope eyepiece with a built-in zoom lens assembly includes an upper eyepiece 1 and a lower eyepiece 2. A connecting post 20 is fixedly connected to one side of the lower end of the upper eyepiece 1, and the lower end of the connecting post 20 is fixedly connected to the upper end of the lower eyepiece 2, so that the upper eyepiece 1 and the lower eyepiece 2 are coaxially arranged, thereby ensuring stable alignment of the internal optical channel. A zoom component is provided between the upper eyepiece 1 and the lower eyepiece 2 for switching between different magnifications within the same eyepiece, avoiding the need for users to frequently change eyepieces with different magnifications during use. A zoom component is provided at the lower end of the lower eyepiece 2 for continuing to adjust the field of view and magnification after the magnification is determined, thereby obtaining a continuously zoomed imaging effect.

[0033] The zoom assembly includes a zoom turntable 3 mounted on the outside of the connection between the upper end 1 and the lower end 2 of the eyepiece. An internal gear disk 6 is fixedly connected to the middle of the inner wall of the zoom turntable 3. An external gear frame 11 is meshed with the inside of the internal gear disk 6. A mounting frame 12 is fixedly connected to the inner wall of the external gear frame 11. A rotating shaft 14 is fixedly connected to the middle of the mounting frame 12. The upper and lower ends of the rotating shaft 14 are respectively engaged and rotatably connected to the upper end 1 and the lower end 2 of the eyepiece, thereby ensuring that the mounting frame 12 and the lens group on it rotate synchronously when the turntable rotates. Multiple zoom lenses 13 are evenly spaced at angles on the outer periphery of the mounting frame 12. These zoom lenses 13 have different magnifications, such as five times, ten times, fifteen times, etc. The distance between the lenses of different magnifications and the rotating shaft 14 is equal to the distance between the rotating shaft 14 and the internal imaging channel of the upper end 1 and the lower end 2 of the eyepiece, thereby ensuring that the optical center of the lens always coincides with the optical axis when switching, avoiding aberration shift.

[0034] To achieve stable positioning of the magnification position, the upper and lower ends of the inner wall of the magnification turntable 3 are fixedly connected with locking plates 7. The locking plates 7 are respectively engaged and rotatably connected with the upper end 1 and the lower end 2 of the eyepiece, thereby ensuring the stability of the turntable rotation. The upper and lower ends of the inner wall of the magnification turntable 3 are also fixedly connected with first telescopic springs 8. One end of the first telescopic spring 8 is fixedly connected with a first limiting post 9. The outer walls of the upper end 1 and the lower end 2 of the eyepiece are each provided with three first limiting grooves 10, and the interval angle between the three first limiting grooves 10 is the same. When the user rotates the magnification turntable 3, the first limiting post 9 is sequentially engaged into each limiting groove under the elastic force of the first telescopic spring 8, thereby realizing automatic positioning and locking of multiple magnification positions and preventing accidental magnification shift during use.

[0035] The zoom assembly includes a sliding frame 17 slidably connected inside the lower end 2 of the eyepiece. A groove 5 is provided on one side of the outer wall of the lower end 2 of the eyepiece. One end of the sliding frame 17 is slidably connected inside the groove 5. A zoom turntable 4 is fitted on the outside of the lower end 2 of the eyepiece. One end of the sliding frame 17 is fixedly connected to the zoom turntable 4. When the user rotates the zoom turntable 4, the sliding frame 17 can be moved back and forth along the direction of the groove 5, thereby changing the relative position of the zoom lens and the imaging plane, and realizing continuous adjustment of the field of view and magnification.

[0036] To make the continuous zoom adjustment process more controllable, multiple second limiting grooves 16 are provided on both sides of the inner wall of the slide 5. Second telescopic springs 18 are fixedly connected to both sides of the sliding frame 17. A second limiting post 19 is fixedly connected to one end of the second telescopic spring 18. When the sliding frame 17 moves to the preset position, the second limiting post 19 automatically engages in the corresponding second limiting groove 16 under the action of the spring, thereby achieving stable positioning of the zoom position and preventing unintentional displacement. In addition, to prevent dust and impurities from entering the lens barrel and affecting the image quality, sealing telescopic layers 15 are fixedly connected to both the upper and lower ends of the zoom dial 4. The end of the sealing telescopic layer 15 away from the zoom dial 4 is fixedly connected to the lower end 2 of the eyepiece. It can extend and retract during the zoom adjustment process to maintain a sealed state.

[0037] During use, the user first selects the desired magnification position by rotating the zoom dial 3. The limiting structure ensures the stability and repeatability of the selected magnification. Subsequently, the user can continue to rotate the zoom dial 4, which drives the sliding frame 17 and the lens on it to move smoothly along the optical axis, achieving a smooth transition in field of view and magnification. This structure integrates multi-magnification switching and continuous zoom functions into the same eyepiece, which not only reduces the tedious operation of frequently changing eyepieces, but also ensures the smoothness and clarity of image scaling. Furthermore, the sealing telescopic layer 15 improves dust protection capabilities, making it suitable for various microscopic observation scenarios such as scientific research, teaching, and industrial testing.

[0038] A cylindrical body is also provided on the bottom exterior of the lower end 2 of the eyepiece. The outer diameter of the cylindrical body matches the inner diameter of the existing microscope eyepiece tube. It is used to securely insert the eyepiece into the eyepiece tube of the microscope body, thereby enhancing the assembly stability between the eyepiece and the optical system of the whole machine. The cylindrical body 21 is fixed below the lower end 2 of the eyepiece and is coaxial with the lower end 2 of the eyepiece in its axial direction, so that the light transmission channel remains continuous after insertion and will not obstruct or shift the optical imaging path. Through the setting of this cylindrical body structure, the eyepiece has better physical compatibility and ease of use when adapted to the existing microscope system, and also improves the overall mechanical stability of the device during focusing or zooming operations.

[0039] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0040] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, 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. A zoom microscope eyepiece with a built-in zoom lens group, characterized in that: The device includes an upper eyepiece (1) and a lower eyepiece (2). A connecting post (20) is fixedly connected to one side of the lower end of the upper eyepiece (1). The upper end of the lower eyepiece (2) is fixedly connected to the lower end of the connecting post (20). The upper eyepiece (1) and the lower eyepiece (2) are coaxial. A zoom component is provided between the upper eyepiece (1) and the lower eyepiece (2). The zoom component is used to switch between different magnifications of the eyepiece. A zoom component is provided at the lower end of the lower eyepiece (2). The zoom component is used to adjust the field of view and magnification to achieve continuous scaling of the microscopic image.

2. The zoom microscope eyepiece with built-in zoom lens group according to claim 1, characterized in that: The zoom assembly includes a zoom turntable (3) located outside the connection between the upper end (1) and the lower end (2) of the eyepiece. An internal gear plate (6) is fixedly connected to the middle of the inner wall of the zoom turntable (3). An external gear frame (11) is meshed with the inside of the internal gear plate (6). A mounting bracket (12) is fixedly connected to the inner wall of the external gear frame (11). A rotating shaft (14) is fixedly connected to the middle of the mounting bracket (12). The upper and lower ends of the rotating shaft (14) are respectively engaged and rotatably connected to the upper end (1) and the lower end (2) of the eyepiece.

3. The zoom microscope eyepiece with built-in zoom lens group according to claim 2, characterized in that: The mounting bracket (12) is provided with multiple zoom lenses (13) at uniform angular intervals on its exterior. The magnification of the multiple zoom lenses (13) is different. The distance between the rotating shaft (14) and the zoom lens (13) is equal to the distance between the rotating shaft (14) and the internal imaging channels of the upper end (1) and lower end (2) of the eyepiece.

4. A zoom microscope eyepiece with a built-in zoom lens group according to claim 3, characterized in that: The inner wall of the zoom turntable (3) is fixedly connected to the upper and lower ends of the inner wall with a clamping plate (7), and the two clamping plates (7) are respectively engaged and rotatably connected to the upper end (1) and the lower end (2) of the eyepiece.

5. A zoom microscope eyepiece with a built-in zoom lens group according to claim 4, characterized in that: The inner wall of the zoom turntable (3) is fixedly connected to the upper and lower ends of the first telescopic springs (8), and one end of each of the two first telescopic springs (8) is fixedly connected to a first limiting post (9). The outer walls of the upper end (1) and lower end (2) of the eyepiece are provided with three first limiting grooves (10). The three first limiting grooves (10) are spaced at the same angle. The end of the first limiting post (9) away from the first telescopic spring (8) abuts against the inside of the first limiting groove (10).

6. A zoom microscope eyepiece with a built-in zoom lens group according to claim 1, characterized in that: The zoom assembly includes a sliding frame (17) that is slidably connected to the inside of the lower end (2) of the eyepiece. A groove (5) is provided on one side of the outer wall of the lower end (2) of the eyepiece. One end of the sliding frame (17) is slidably connected to the inside of the groove (5). A zoom turntable (4) is sleeved on the outside of the lower end (2) of the eyepiece. One end of the sliding frame (17) is fixedly connected to the zoom turntable (4).

7. A zoom microscope eyepiece with a built-in zoom lens group according to claim 6, characterized in that: The inner wall of the slide (5) is provided with multiple second limiting grooves (16) on both sides. The sliding frame (17) is fixedly connected to the second telescopic spring (18) on both sides at the position inside the slide (5). One end of the second telescopic spring (18) is fixedly connected to the second limiting post (19), and one end of the second limiting post (19) abuts against the inside of the second limiting groove (16).

8. A zoom microscope eyepiece with a built-in zoom lens group according to claim 7, characterized in that: The zoom turntable (4) is fixedly connected to both the upper and lower ends with sealing telescopic layers (15), and the ends of the two sealing telescopic layers (15) away from the zoom turntable (4) are fixedly connected to the lower end (2) of the eyepiece.

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