An optical lens curvature radius detection device
By designing a combined structure of limiting sleeve, limiting plate and spring, the problem of non-adjustable light source height was solved, realizing flexible adjustment of light source height in optical lens curvature radius detection device, and ensuring the accuracy and uniformity of detection.
Patent Information
- Application Number
- CN202521813193.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-06-18
- Publication Date
- 2026-08-04
- Estimated Expiration
- 2036-06-18
AI Technical Summary
In existing optical lens curvature radius detection devices, the height of the light source is not adjustable, which causes the light to be incident at an angle, resulting in problems such as interference fringe distortion, center shift, or uneven brightness.
An optical lens curvature radius detection device was designed. Through the combination structure of limiting sleeve, limiting plate, spring and pressing plate, the height of the light source can be flexibly adjusted, and the limiting and fixing can be achieved by the reset thrust of the spring.
It enables flexible adjustment of the light source height to adapt to changes in the surface height of lenses of different thicknesses, avoids oblique incident light, and ensures the accuracy and uniformity of interference fringes.
Smart Images
Figure CN224593928U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of optical inspection equipment technology, and more specifically, to an optical lens curvature radius detection device. Background Technology
[0002] Light interference is one of the most important optical phenomena. In simple terms, it involves splitting light emitted from the same source into two beams. These two beams travel different paths in space and then collide, producing interference. Light interference has wide applications in scientific research, production, and daily life. Measuring the radius of curvature of a lens is one of its main uses. This is achieved by placing the lens on a reading microscope and observing and reading Newton's rings through the eyepiece of the microscope.
[0003] A search revealed that CN221571406U discloses "A visual experimental instrument for measuring the radius of curvature of a lens using Newton's rings, relating to the field of optical testing equipment, including a display, a reading microscope, and an image acquisition device; the reading microscope is placed on the display... This utility model utilizes a CCD camera to acquire an image of Newton's rings displayed in the eyepiece and magnifies it on the display, allowing the user to observe the Newton's rings and read the ring number, effectively relieving eye fatigue." However, while the light source in this application can rotate, its height cannot be adjusted, lacking vertical height adjustment functionality. When testing lenses with different radii of curvature and thicknesses, a fixed-height light source is difficult to adapt to changes in the lens surface height, easily leading to oblique incident light and causing problems such as elliptical distortion, center shift, or uneven brightness in the interference fringes.
[0004] To address the aforementioned problems, this application provides an optical lens curvature radius detection device. Utility Model Content
[0005] One objective of this application is to provide an optical lens curvature radius detection device, comprising a reading and display mechanism and an image acquisition mechanism. A support frame is fixedly connected to the top of the reading and display mechanism. A sliding sleeve is slidably fitted onto the outer side of the support frame. A support rod is fixedly connected to the right end face of the sliding sleeve. A rectangular hole is formed in the middle of the support rod. A limiting sleeve is slidably fitted onto the outer side of the support rod. Multiple limiting grooves are symmetrically formed on the right end face of the support rod. A connecting frame is fixedly connected to the outer side of the limiting sleeve. A light source is fixedly connected to the end of the connecting frame away from the limiting sleeve. A rectangular groove is formed on the inner wall of the limiting sleeve. A limiting plate is slidably connected inside the rectangular groove. Two limiting blocks are symmetrically fixedly connected to the left end face of the limiting plate. A spring is provided inside the rectangular groove. A connecting plate is slidably inserted into the limiting sleeve. A pressing plate is provided on the outer side of the limiting sleeve.
[0006] Furthermore, multiple springs are provided, with one end of each spring fixedly connected to the inner wall of the rectangular groove and the other end of each spring fixedly connected to the limiting plate.
[0007] Furthermore, the limiting sleeve has a sliding hole, the connecting plate is slidably inserted into the connecting hole, the right end of the connecting plate passes through the rectangular hole and is fixedly connected to the limiting plate, the left end of the connecting plate is fixedly connected to the pressing plate, and the distance between the pressing plate and the limiting sleeve is greater than the thickness of the limiting block.
[0008] Furthermore, the plurality of limiting grooves are arranged sequentially from top to bottom, and the spacing between two adjacent limiting grooves is equal. The front and rear sides of the connecting plate are slidably connected to the inner wall of the rectangular hole, and the upper side of the left end face of the limiting block is set at an angle.
[0009] Furthermore, the surface of the sliding sleeve is provided with a threaded hole, and a fixing bolt is inserted into the threaded hole. The right end of the fixing bolt is set in a conical shape.
[0010] Furthermore, the outer side of the support rod is symmetrically provided with sliding grooves and sliding channels, and the sliding grooves and sliding channels are respectively slidably connected with matching sliding blocks and sliders. The sliding blocks and sliders are fixedly connected to the inner wall of the limiting sleeve, and the sliding blocks are arranged in a "T" shape.
[0011] The beneficial effects of this application are: When the light source needs to be adjusted upwards, simply move the limiting sleeve upwards. This upward movement of the limiting sleeve causes the connecting bracket, light source, limiting plate inside the rectangular groove, spring, and limiting block to move upwards. As the limiting block moves upwards, the inclined surface on the upper side of its left end face is compressed and moves inwards into the rectangular groove. This movement of the limiting block causes the limiting plate to move inwards into the rectangular groove and compress the spring. The spring contracts under compression. When the movement reaches the appropriate height, aligning the limiting groove with the limiting block, the spring returns to its original position, generating a thrust that causes the limiting plate to move inwards. The block moves into the interior of the limiting groove, thereby limiting and fixing the limiting sleeve. When it is necessary to move the light source downward, simply lift the limiting sleeve and the pressing plate, and press the pressing plate to move to the right. The movement of the pressing plate will move the two limiting blocks out of the interior of the limiting groove, and then move the pressing plate and the limiting sleeve downward. When it moves to the appropriate height, the limiting groove and the limiting block will correspond. At this time, release the pressing plate, and the spring will return to its original position and generate a thrust, causing the limiting plate to move the limiting block into the interior of the limiting groove, thereby limiting and fixing the limiting sleeve. In summary, this application allows for easy adjustment of the height of the light source, thereby facilitating adaptation to changes in the height of the lens surface. Attached Figure Description
[0012] The accompanying drawings are provided to further understand this application and form part of the specification. They are used together with the embodiments of this application to explain this application and do not constitute a limitation thereof.
[0013] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a partial structural diagram of this application; Figure 3 This is a partial structural front sectional view of this application; Figure 4 For the purposes of this application Figure 3 Enlarged schematic diagram of the structure of region A in the middle; Figure 5 This is a top sectional view of part of the structure of this application; Figure 6 For the purposes of this application Figure 5 Enlarged schematic diagram of the structure of region B in the middle; Figure 7 This is a schematic diagram of the support rod, limiting block, limiting plate and spring structure of this application; Figure 8 For the purposes of this application Figure 7 Enlarged schematic diagram of the structure of region C in the middle.
[0014] Explanation of the labels in the diagram: 1. Reading and display mechanism; 2. Support frame; 3. Fixing bolt; 31. Threaded hole; 4. Sliding sleeve; 5. Light source; 6. Support rod; 7. Limiting sleeve; 8. Rectangular hole; 9. Limiting groove; 10. Connecting frame; 11. Rectangular groove; 12. Pressing plate; 13. Connecting plate; 14. Sliding hole; 15. Sliding groove; 16. Sliding block; 17. Sliding groove; 18. Sliding block; 19. Spring; 20. Limiting plate; 21. Limiting block. Detailed Implementation
[0015] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0016] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0017] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Example
[0018] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8This application discloses an optical lens curvature radius detection device, including a display mechanism 1 and an image acquisition mechanism (not shown in the figure). The image acquisition mechanism consists of a CCD camera and a data cable. Both the display mechanism 1 and the image acquisition mechanism in this application belong to the prior art, and their structure and working principle are based on a prior art publication (announcement) number CN221571406U, a visual experimental instrument for measuring the curvature radius of a lens using Newton's rings. These will not be described in detail here. During detection, the CCD camera is mounted on the eyepiece of the display mechanism 1, and the end of the data cable is plugged into the USB interface on the display mechanism 1. A support frame 2 is fixedly connected to the top of the display mechanism 1. A sliding sleeve 4 is slidably sleeved on the outer side of the support frame 2. A support rod 6 is fixedly connected to the right end face of the sliding sleeve 4. A rectangular hole 8 is opened in the middle of the support rod 6. A limit sleeve 7 is slidably sleeved on the outer side of the support rod 6. Multiple limit grooves 9 are symmetrically opened on the right end face of the support rod 6. A connecting frame 10 is fixedly connected to the outer side of the limit sleeve 7. A light source 5 is fixedly connected to the end of the connecting frame 10 away from the limit sleeve 7. The light source 5 is electrically connected to the display mechanism 1. A control switch for controlling the switching of the light source 5 is provided on the top of the display mechanism 1. A rectangular groove 11 is opened in the inner wall of the limit sleeve 7. The rectangular groove 11 slides inside the rectangular groove 11. A limiting plate 20 is connected, and two limiting blocks 21 are symmetrically and fixedly connected to the left end of the limiting plate 20. A spring 19 is installed inside the rectangular groove 11. Multiple springs 19 are installed, with one end fixedly connected to the inner wall of the rectangular groove 11 and the other end fixedly connected to the limiting plate 20. A connecting plate 13 is slidably inserted into the limiting sleeve 7, and a pressing plate 12 is installed on the outer side of the limiting sleeve 7. When it is necessary to adjust the light source 5 upwards, simply move the limiting sleeve 7 upwards. The upward movement of the limiting sleeve 7 causes the connecting frame 10, the light source 5, the limiting plate 20 inside the rectangular groove 11, the springs 19, and the limiting blocks 21 to move upwards. When the limiting block 21 moves upward, the inclined surface on the upper side of the left end face of the limiting block 21 is squeezed and moves into the rectangular groove 11. The movement of the limiting block 21 drives the limiting plate 20 to move into the rectangular groove 11 and squeezes the spring 19. The spring 19 is squeezed and contracts. When the limiting plate 20 moves into the rectangular groove 11, the limiting plate 20 drives the connecting plate 13 and the pressing plate 12 to move. When it moves to a suitable height, the limiting groove 9 corresponds to the limiting block 21. At this time, the spring 19 resets and generates a thrust, causing the limiting plate 20 to drive the limiting block 21 to move into the limiting groove 9, thereby achieving the limiting and fixing of the limiting sleeve 7. When it is necessary to move the light source 5 downward, simultaneously lift the limiting sleeve 7 and the pressing plate 12, and press the pressing plate 12 to move it to the right, so that the pressing plate 12 abuts against the left end face of the limiting sleeve 7. The movement of the pressing plate 12 drives the connecting plate 13 to move and pushes the limiting plate 20 to move. The movement of the limiting plate 20 drives the two limiting blocks 21 to move out of the limiting groove 9. When the limiting plate 20 moves, the limiting plate 20 squeezes the spring 19, and the spring 19 contracts under the pressure. At this time, the limiting sleeve 7 and the pressing plate 12 move downward, thereby adjusting the light source 5. When it moves to the appropriate height, the limiting groove 9 corresponds to the limiting block 21. At this time, the pressing plate 12 is released, and the spring 19 returns to its original position, generating a thrust that causes the limiting plate 20 to move the limiting block 21 and insert it into the limiting groove 9, thereby achieving the limiting and fixing of the limiting sleeve 7.
[0019] Please see Figure 4 and Figure 6 The limiting sleeve 7 has a sliding hole 14, and the connecting plate 13 is slidably inserted into the connecting hole. The sliding hole 14 serves to limit the sliding of the connecting plate 13. The right end of the connecting plate 13 passes through the rectangular hole 8 and is fixedly connected to the limiting plate 20. The left end of the connecting plate 13 is fixedly connected to the pressing plate 12. The distance between the pressing plate 12 and the limiting sleeve 7 is greater than the thickness of the limiting block 21. Multiple limiting grooves 9 are arranged sequentially from top to bottom, and the distance between two adjacent limiting grooves 9 is equal. Both the front and rear sides of the connecting plate 13 are slidably connected to the inner wall of the rectangular hole 8. The upper side of the left end face of the limiting block 21 is set with an incline. When the limiting sleeve 7 is driven to move upward, the limiting sleeve 7 drives the limiting plate 20 and the limiting block 21 to move upward. When the limiting block 21 moves upward, the incline on the upper side of the left end face of the limiting block 21 will be squeezed, thereby driving the limiting plate 20 to move into the rectangular groove 11 and squeeze the spring 19, so that the limiting block 21 moves out of the limiting groove 9.
[0020] Please see Figure 4 The surface of the sliding sleeve 4 is provided with a threaded hole 31, and a fixing bolt 3 is inserted into the threaded hole 31. The right end of the fixing bolt 3 is set with a conical structure. Tightening the fixing bolt 3 will cause the fixing bolt 3 to no longer abut against the outside of the support frame 2, thereby releasing the fixing of the sliding sleeve 4 and allowing the sliding sleeve 4 to rotate on the outside of the support frame 2, thereby facilitating the adjustment of the position of the lamp source 5. After the adjustment is completed, tightening the fixing bolt 3 will cause the fixing bolt 3 to abut against the outside of the support frame 2, thereby achieving the limiting and fixing of the adjusted sliding sleeve 4.
[0021] Please see Figure 6The outer side of the support rod 6 is symmetrically provided with sliding grooves 15 and 17, and there are two of each sliding groove 15 and 17. The sliding blocks 16 and sliders 18 are slidably connected inside the sliding grooves 15 and 17, respectively. The sliding blocks 16 and sliders 18 are fixedly connected to the inner wall of the limiting sleeve 7. The sliding blocks 16 are arranged in a "T" shape. When the limiting sleeve 7 moves up and down, it drives the sliding blocks 16 and sliders 18 to slide inside the sliding grooves 15 and 17, respectively. When the limiting sleeve 7 slides, the slider 18 slides inside the sliding groove 17 and the sliding blocks 16 slides inside the sliding groove 15. Thus, the cooperation of the sliders 18 and the sliding groove 17, and the sliding blocks 16 and the sliding groove 15 further limits the limiting sleeve 7, thereby further improving the stability of the limiting sleeve 7 when sliding on the outer side of the support rod 6.
[0022] The implementation principle of this application embodiment is as follows: The working principle of the optical lens curvature radius detection in this application refers to the prior art mentioned above, and will not be described in detail here; Tighten the fixing bolt 3 so that it is no longer pressed against the outside of the support frame 2, thereby releasing the fixation of the sliding sleeve 4 and allowing the sliding sleeve 4 to rotate on the outside of the support frame 2, thus facilitating the adjustment of the position of the light source 5. After the adjustment is completed, tighten the fixing bolt 3 so that it abuts against the outside of the support frame 2, thereby achieving the limiting fixation of the adjusted sliding sleeve 4. When it is necessary to adjust the light source 5 upward, simply move the limiting sleeve 7 upward. The upward movement of the limiting sleeve 7 causes the connecting frame 10, the light source 5, the limiting plate 20, the spring 19, and the limiting block 21 inside the rectangular groove 11 to move upward. When the limiting block 21 moves upward, the inclined surface on the upper side of the left end face of the limiting block 21 is squeezed and moves into the rectangular groove 11. The movement of the limiting block 21 causes the limiting plate 20 to move into the rectangular groove 11 and squeeze the spring 19. The spring 19 is squeezed and contracts. When the limiting plate 20 moves into the rectangular groove 11, the limiting plate 20 causes the connecting plate 13 and the pressing plate 12 to move. When it moves to the appropriate height, the limiting groove 9 corresponds to the limiting block 21. At this time, the spring 19 resets and generates a thrust, causing the limiting plate 20 to move the limiting block 21 into the limiting groove 9, thereby achieving the limiting and fixing of the limiting sleeve 7. When it is necessary to move the light source 5 downward, simultaneously lift the limiting sleeve 7 and the pressing plate 12, and press the pressing plate 12 to move it to the right, so that the pressing plate 12 abuts against the left end face of the limiting sleeve 7. The movement of the pressing plate 12 drives the connecting plate 13 to move and pushes the limiting plate 20 to move. The movement of the limiting plate 20 drives the two limiting blocks 21 to move out of the limiting groove 9. When the limiting plate 20 moves, the limiting plate 20 squeezes the spring 19, and the spring 19 contracts under the pressure. At this time, the limiting sleeve 7 and the pressing plate 12 move downward, thereby adjusting the light source 5. When it moves to the appropriate height, the limiting groove 9 corresponds to the limiting block 21. At this time, the pressing plate 12 is released, and the spring 19 returns to its original position, generating a thrust that causes the limiting plate 20 to move the limiting block 21 and insert it into the limiting groove 9, thereby achieving the limiting and fixing of the limiting sleeve 7.
[0023] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and application concept of this application, should be included within the scope of protection of this application.
Claims
1. An optical lens curvature radius detection device, comprising a reading and display mechanism (1) and an image acquisition mechanism, characterized in that: The top of the display mechanism (1) is fixedly connected to a support frame (2), and a sliding sleeve (4) is slidably sleeved on the outside of the support frame (2). A support rod (6) is fixedly connected to the right end face of the sliding sleeve (4). A rectangular hole (8) is opened in the middle of the support rod (6). A limit sleeve (7) is slidably sleeved on the outside of the support rod (6). Multiple limit grooves (9) are symmetrically opened on the right end face of the support rod (6). A connecting frame (10) is fixedly connected to the outside of the limit sleeve (7). 10) A light source (5) is fixedly connected to one end away from the limiting sleeve (7). A rectangular groove (11) is provided on the inner wall of the limiting sleeve (7). A limiting plate (20) is slidably connected inside the rectangular groove (11). Two limiting blocks (21) are symmetrically fixedly connected to the left end of the limiting plate (20). A spring (19) is provided inside the rectangular groove (11). A connecting plate (13) is slidably inserted on the limiting sleeve (7). A pressing plate (12) is provided on the outer side of the limiting sleeve (7).
2. The optical lens curvature radius detection device according to claim 1, characterized in that: Multiple springs (19) are provided. One end of the spring (19) is fixedly connected to the inner wall of the rectangular groove (11), and the other end of the spring (19) is fixedly connected to the limiting plate (20).
3. The optical lens curvature radius detection device according to claim 1, characterized in that: The limiting sleeve (7) has a sliding hole (14), the connecting plate (13) is slidably inserted into the connecting hole, the right end of the connecting plate (13) passes through the rectangular hole (8) and is fixedly connected to the limiting plate (20), the left end of the connecting plate (13) is fixedly connected to the pressing plate (12), and the distance between the pressing plate (12) and the limiting sleeve (7) is greater than the thickness of the limiting block (21).
4. The optical lens curvature radius detection device according to claim 1, characterized in that: Multiple limiting grooves (9) are arranged sequentially from top to bottom, and the spacing between two adjacent limiting grooves (9) is equal. The front and rear sides of the connecting plate (13) are slidably connected to the inner wall of the rectangular hole (8). The upper side of the left end face of the limiting block (21) is set with an incline.
5. The optical lens curvature radius detection device according to claim 1, characterized in that: The surface of the sliding sleeve (4) is provided with a threaded hole (31), and a fixing bolt (3) is inserted into the threaded hole (31). The right end of the fixing bolt (3) is set in a conical shape.
6. The optical lens curvature radius detection device according to claim 1, characterized in that: The support rod (6) is symmetrically provided with sliding grooves (15) and sliding grooves (17) on its outer side. Sliding blocks (16) and sliders (18) are slidably connected inside the sliding grooves (15) and sliding grooves (17), respectively. The sliding blocks (16) and sliders (18) are fixedly connected to the inner wall of the limiting sleeve (7). The sliding blocks (16) are arranged in a "T" shape.