Multi-point diffusion lens and processing equipment thereof

Abstract

The present invention provides a multi-point diffusion lens and processing equipment thereof, belonging to the technical field of defocused lens manufacturing. The multi-point diffusion lens includes a lens body and a lens frame, the lens frame is connected to the frame, the lens body is provided with a fully transparent area and a functional area, the lens body is located in the lens frame and a gap is provided between the outer edge of the lens body and the inner edge of the lens frame, a silicone filler is provided between the four corners of the outer edge of the lens body and the inner edge of the lens frame, four threaded holes are provided on the lens frame, the four threaded holes point to the four directions of up, down, left and right respectively, and a fixing screw is provided in each of the four threaded holes.

Description

Technical Field

[0001] The present invention relates to the technical field of defocus lens manufacturing, in particular to a multi-point diffusion lens and processing equipment thereof. Background Art

[0002] Multi-point diffusion lenses are a low-contrast, point-diffusion lens and a new type of myopia prevention and control lens. Their unique feature is their use of point-diffusion myopia control technology, which reduces contrast through softly scattered light, reducing the high-contrast signals detected by retinal photoreceptors and the resulting elongation signals sent to the eye. This slows axial length growth and, to a certain extent, slows the progression of myopia. The design of these lenses is based on retinal contrast theory. At the center of the multi-point diffusion lens lies a fully transparent area approximately 5mm long. From the edge of this transparent area to the edge of the lens is the functional area, where thousands of scattered microdots are distributed according to a specific pattern to slightly reduce contrast. Therefore, unlike wearing ordinary lenses, the wearer needs to align their eyes directly with the center of the lens to achieve clear vision.

[0003] However, some patients who have undergone strabismus correction surgery experience changes in eye position during the recovery period. During this period, wearing multi-point diffusion lenses may cause discomfort if the wearer's eyes are not aligned with the center of the lens when looking straight ahead. Summary of the Invention

[0004] The present invention aims to solve the above technical problems and provides a multi-point diffusion lens and a processing device thereof.

[0005] A technical solution of the present invention is a multi-point diffusion lens, comprising a lens body and a lens frame, the lens frame being connected to the frame, the lens body being provided with a fully transparent area and a functional area, the lens body being located in the lens frame and a gap being provided between the outer edge of the lens body and the inner edge of the lens frame, a silicone filler being provided between the four corners of the outer edge of the lens body and the inner edge of the lens frame, four threaded holes being provided on the lens frame, the four threaded holes pointing to the four directions of up, down, left and right respectively, and a fixing screw being provided in each of the four threaded holes.

[0006] As an embodiment, when the active end of the set screw contacts the outer edge of the lens body, the slotted end of the set screw is located in the threaded hole.

[0007] As an embodiment, the silicone filler is W-shaped, and the W opening of the silicone filler is connected to the outer edge of the lens body, and the W bottom of the silicone filler is connected to the inner edge of the lens frame.

[0008] Another technical solution of the present invention is a multi-point diffusion lens processing device for processing and manufacturing multi-point diffusion lenses, comprising a base, a fixture table and columns provided on the base, a plurality of tooling columns for limiting the position of the lens to be processed and a plurality of support columns for supporting the bottom of the lens to be processed provided on the fixture table;

[0009] The column is rotatably connected to a first frame, the first frame is rotatably connected to a second frame via a connecting rod, the bottoms of the first frame and the second frame are higher than the tooling column and the support column to form a processing space, the column is provided with a cross bar located above the first frame and the second frame, a lens template consistent with the shape of the lens to be processed is provided below the cross bar, the lens template and the lens to be processed are directly opposite each other up and down, a top of one side of the second frame is provided with a fixed section protruding outward, the fixed section is provided with a roller for contacting the outer edge of the lens template, an industrial camera is also provided on the fixed section, a movable section is rotatably connected to the middle of one side of the second frame, and a first adjustment motor is provided on one side of the movable section. The rotating shaft of the first adjusting motor and the roller are on the same axis, the rotating shaft of the first adjusting motor is provided with an offset block, the bottom of the offset block is provided with a waist-shaped shaft groove, a vertical hanging shaft is provided in the shaft groove, a laser cutting head is provided at the bottom of the hanging shaft, a slide seat is provided on the top of the laser cutting head along the length direction of the shaft groove, a slide is movably connected to the slide seat, a second adjusting motor is provided on the slide, the rotating shaft of the second adjusting motor passes through the shaft groove and the hanging shaft in the shaft groove, and a section of the rotating shaft of the second adjusting motor located in the shaft groove is a spiral section, so that the laser cutting head is displaced along the shaft groove under the drive of the second adjusting motor, and a dispensing device is provided on the other side of the movable section;

[0010] The fixture table is also provided with an annular track surrounding the tooling column and the support column, the track is movably connected to a moving frame, the moving frame is provided with a lifting rod, the lifting rod is movably connected to a lifting block, and a drilling device and a tapping device are respectively provided on both sides of the lifting block.

[0011] As an embodiment, a transition section is provided on the column, and a plurality of swivels are provided on one side of the first frame, and the plurality of swivels are connected to the transition section.

[0012] As an embodiment, a plurality of mounting components are provided on the crossbar, and the lens template is arranged below the crossbar through the mounting components, and a contoured space is formed between the lens template and the crossbar.

[0013] As an embodiment, a first mounting seat is provided on one side of the movable section, and the first mounting seat is used to install the first adjustment motor. A second mounting seat is provided on the other side of the movable section, and the second mounting seat is used to install the dispensing device.

[0014] As an implementation manner, both the first frame and the second frame are square frames.

[0015] As an embodiment, an external connecting ear is provided on one side of the first frame, and an internal connecting ear is provided on one side of the second frame, and the external connecting ear and the internal connecting ear are rotatably connected via the connecting rod.

[0016] As an embodiment, a bottom column is provided on the base, and the bottom column is supported below the fixture table.

[0017] Compared to existing technologies, the present invention offers the advantage of removing the multi-point diffusion lens from the frame. By adjusting four set screws, the lens body can be slightly moved up, down, left, and right relative to the frame. This allows the patient's eye to align with the fully transparent area of ​​the lens during recovery. The four set screws adjust the position of the fully transparent area, while the four silicone fillers ensure a secure connection between the lens body and the frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a multi-point diffusion lens provided by one embodiment of the present invention;

[0019] Figure 2 A schematic structural diagram of a multi-point diffusion lens processing device provided in one embodiment of the present invention;

[0020] Figure 3 for Figure 2 A first partial enlarged view of a processing device for a multi-point diffusion lens provided in;

[0021] Figure 4 for Figure 2 A second partial enlarged view of the processing equipment for the multi-point diffusion lens provided in.

[0022] In the figure: 1. lens body; 2. lens frame; 3. gap; 4. silicone filler; 5. threaded hole; 6. set screw; 7. base; 8. fixture table; 9. column; 10. tooling column; 11. support column; 12. first frame; 13. connecting rod; 14. second frame; 15. processing space; 16. crossbar; 17. lens template; 18. fixed section; 19. roller; 20. industrial camera; 21. movable section; 22. first adjustment motor; 23. offset block; 2 4. Shaft groove; 25. Hanging shaft; 26. Laser cutting head; 27. Slide; 28. Slide; 29. ​​Second adjusting motor; 30. Glue dispensing device; 31. Track; 32. Moving frame; 33. Lifting rod; 34. Lifting block; 35. Drilling device; 36. Tapping device; 37. Adapter section; 38. Swivel; 39. Mounting assembly; 40. Contour space; 41. First mounting seat; 42. Second mounting seat; 43. External connecting ear; 44. Internal connecting ear; 45. Base column. DETAILED DESCRIPTION

[0023] The above and other embodiments and advantages of the present invention are clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments.

[0024] In one embodiment, Figure 1 shown.

[0025] The multi-point diffusion lens provided in this embodiment includes a lens body 1 and a lens frame 2. The lens frame 2 is connected to the lens frame. A fully transparent area and a functional area are provided on the lens body 1. The lens body 1 is located in the lens frame 2 and a gap 3 is provided between the outer edge of the lens body 1 and the inner edge of the lens frame 2. A silicone filler 4 is provided between the four corners of the outer edge of the lens body 1 and the inner edge of the lens frame 2. Four threaded holes 5 are provided on the lens frame 2. The four threaded holes 5 point to the four directions of up, down, left and right respectively, and a fixing screw 6 is provided in each of the four threaded holes 5.

[0026] In this embodiment, the lens body 1 and lens frame 2 originally formed from a single piece of lens. The lens was cut a distance inward from its outer edge, creating a gap 3 between the lens body 1 and the lens frame 2. Silicone fillers 4 are then added between the four corners of the outer edge of the lens body 1 and the inner edge of the lens frame 2. Specifically, the silicone fillers 4 can be W-shaped, with the W-shaped opening of the silicone filler 4 connecting to the outer edge of the lens body 1 and the W-shaped bottom of the silicone filler 4 connecting to the inner edge of the lens frame 2.

[0027] In this way, the multi-point diffusion lens can be removed from the frame, and by adjusting the four set screws 6, the lens body 1 can be slightly moved up, down, left, and right relative to the lens frame 2. This allows the patient's eye to be aligned with the fully transparent area of ​​the lens during the recovery period. The four set screws 6 are responsible for jointly adjusting the specific position of the fully transparent area, and the four silicone fillers 4 are responsible for stabilizing the position between the lens body 1 and the lens frame 2. When the active end of the set screw 6 contacts the outer edge of the lens body 1, the slotted end of the set screw 6 is located in the threaded hole 5. This does not affect the installation of the multi-point diffusion lens in the frame.

[0028] In one embodiment, Figure 2-4 shown.

[0029] The processing equipment of the multi-point diffusion lens provided in this embodiment is used for processing and manufacturing the multi-point diffusion lens, which includes a base 7, a fixture table 8 and a column 9 are provided on the base 7, a plurality of tooling columns 10 for limiting the position of the lens to be processed and a plurality of support columns 11 for supporting the bottom of the lens to be processed are provided on the fixture table 8; a first frame 12 is rotatably connected to the column 9, and the first frame 12 is rotatably connected to the second frame 14 through a connecting rod 13. The bottoms of the first frame 12 and the second frame 14 are higher than the tooling columns 10 and the support columns 11 to form a processing space. The column 9 is provided with a cross bar 16 located above the first frame 12 and the second frame 14. A lens template 17 having the same shape as the lens to be processed is provided below the cross bar 16. The lens template 17 and the lens to be processed are directly opposite each other. A fixed section 18 protruding outward is provided on the top of one side of the second frame 14. A roller 19 for contacting the outer edge of the lens template 17 is provided on the fixed section 18. An industrial camera 20 is also provided on the fixed section 18. A movable section 21 is rotatably connected to the middle of one side of the second frame 14. A first adjustment mechanism is provided on one side of the movable section 21. The motor 22, the rotating shaft of the first regulating motor 22 and the roller 19 are on the same axis, the rotating shaft of the first regulating motor 22 is provided with an offset block 23, the bottom of the offset block 23 is provided with a waist-shaped shaft groove 24, a vertical hanging shaft 25 is provided in the shaft groove 24, a laser cutting head 26 is provided at the bottom of the hanging shaft 25, a slide 27 along the length direction of the shaft groove 24 is provided on the top of the laser cutting head 26, a slide 28 is movably connected to the slide 27, a second regulating motor 29 is provided on the slide 28, the rotating shaft of the second regulating motor 29 passes through the shaft groove 24 and the shaft groove 24. The hanging shaft 25 is provided, and the section of the rotating shaft of the second adjusting motor 29 located in the shaft groove 24 is a spiral section, so that the laser cutting head 26 is shifted along the shaft groove 24 under the drive of the second adjusting motor 29, and a dispensing device 30 is provided on the other side of the movable section 21; the fixture table 8 is also provided with a circular track 31 surrounding the tooling column 10 and the support column 11, and a moving frame 32 is movably connected to the track 31, and a lifting rod 33 is provided on the moving frame 32, and a lifting block 34 is movably connected to the lifting rod 33, and a drilling device 35 and a tapping device 36 are respectively provided on both sides of the lifting block 34.

[0030] In this embodiment, the processing equipment for the multi-point diffusion lens is used to process and manufacture the multi-point diffusion lens. The lens to be processed is placed on a jig table 8, specifically on a plurality of tooling columns 10 and a plurality of support columns 11. Then, a lens template 17 is fixed above the lens to be processed. Guided by a roller 19, the laser cutting head 26 is made to circle several times along the outer edge of the lens to be processed, cutting the complete lens into a lens body 1 and a lens frame 2. The movable section 21 is then flipped over so that the glue dispensing device 30 faces the gap 3 between the lens body 1 and the lens frame 2, and the silicone filler 4 is glued between the lens body 1 and the lens frame 2. The drilling device 35 then opens a circular hole for the threaded hole 5 in the lens frame 2, and the tapping device 36 taps the threaded hole 5 to form a thread. Finally, the set screw 6 is installed to complete the multi-point diffusion lens.

[0031] It should be noted that the roller 19 and the rotating shaft of the first adjustment motor 22 are on the same axis. The axis of the laser cutting head 26 is staggered with the roller 19 by the staggered block 23, so that when the roller 19 contacts the outer edge of the lens template 17, the axis of the laser cutting head 26 is directly inside the outer edge of the lens to be processed. To ensure that the distance from the axis of the laser cutting head 26 to the outer edge of the lens to be processed remains consistent throughout the same cutting cycle. The outer edge of the lens to be processed and the changes in its outer edge profile are captured by the industrial camera 20, so that the laser cutting head 26 is controlled in real time by the first adjustment motor 22 so that the length direction of the shaft groove 24 is always perpendicular to the tangent of the outer edge of the lens to be processed. As a result, within a cutting cycle, the width of the lens frame 2 cut by the laser cutting head 26 is uniform. Then, the second adjustment motor 29 is used to change the position of the hanging shaft 25 within the shaft groove 24, and the position of the laser cutting head 26 is adjusted at the same time. Then, in a new cutting cycle, the inner edge of the lens frame 2 can be cut again. This cycle is repeated several times to form a gap 3 between the lens body 1 and the lens frame 2.

[0032] In one embodiment, Figure 2 shown.

[0033] In the processing equipment for multi-point diffusion lenses provided in this embodiment, a transition section 37 is provided on the column 9 , and a plurality of rotating rings 38 are provided on one side of the first frame 12 , and the plurality of rotating rings 38 are connected to the transition section 37 .

[0034] In this embodiment, a transition section 37 is provided on the column 9 for rotatably connecting the swivel 38 of the first frame 12 .

[0035] In one embodiment, Figure 2 shown.

[0036] The processing equipment for multi-point diffusion lenses provided in this embodiment has a plurality of mounting components 39 provided on the cross bar 16 , and the lens template 17 is arranged below the cross bar 16 through the mounting components 39 , and a contoured space 40 is formed between the lens template 17 and the cross bar 16 .

[0037] In this embodiment, the lens template 17 is fixed by a plurality of mounting assemblies 39. After the lens template 17 is fixed, a certain height difference and a so-called contour space 40 are formed between the lens template 17 and the crossbar 16. In this way, when the roller 19 passes along the outer edge of the lens template 17, it can pass through the crossbar 16.

[0038] In one embodiment, Figure 2 shown.

[0039] The processing equipment for multi-point diffusion lenses provided in this embodiment has a first mounting seat 41 on one side of the movable section 21, and the first mounting seat 41 is used to install the first adjustment motor 22. A second mounting seat 42 is provided on the other side of the movable section 21, and the second mounting seat 42 is used to install the dispensing device 30.

[0040] In this embodiment, a first mounting seat 41 and a second mounting seat 42 are respectively provided on both sides of the movable section 21 for mounting the first adjusting motor 22 and the dispensing device 30 .

[0041] In one embodiment, Figure 2 shown.

[0042] The processing equipment for multi-point diffusion lenses provided in this embodiment has an external connecting ear 43 on one side of the first frame 12 and an internal connecting ear 44 on one side of the second frame 14. The external connecting ear 43 and the internal connecting ear 44 are rotatably connected by a connecting rod 13.

[0043] In this embodiment, a specific connection structure is provided between the first frame 12 and the second frame 14, that is, the connection is achieved through the external connection ear 43 and the internal connection ear 44, and the connection is achieved by the connecting rod 13. Such a transition structure supports the laser cutting head 26 to move along the outer edge of the lens to be processed.

[0044] In one embodiment, Figure 2 shown.

[0045] In the processing equipment for the multi-point diffusion lens provided in this embodiment, a bottom column 45 is provided on the base 7 , and the bottom column 45 is supported below the fixture table 8 .

[0046] The specific embodiments described above further illustrate the purpose of the present invention, technical solutions, and beneficial effects. It should be understood that the above description is merely a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. In particular, it should be noted that for those skilled in the art, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multi-point diffusion lens, characterized in that: The invention comprises a lens body (1) and a lens frame (2), wherein the lens frame (2) is connected to the lens frame, a fully transparent area and a functional area are provided on the lens body (1), the lens body (1) is located in the lens frame (2), and a gap (3) is provided between the outer edge of the lens body (1) and the inner edge of the lens frame (2), a silicone filler (4) is provided between the four corners of the outer edge of the lens body (1) and the inner edge of the lens frame (2), and four threaded holes (5) are provided on the lens frame (2), the four threaded holes (5) are respectively directed in four directions of up, down, left and right, and a set screw (6) is provided in each of the four threaded holes (5).

2. The multi-point diffusion lens according to claim 1, characterized in that: When the active end of the set screw (6) contacts the outer edge of the lens body (1), the slotted end of the set screw (6) is located in the threaded hole (5).

3. The multi-point diffusion lens according to claim 1, wherein: The silicone filler (4) is W-shaped, and the W opening of the silicone filler (4) is connected to the outer edge of the lens body (1), and the W bottom of the silicone filler (4) is connected to the inner edge of the lens frame (2).

4. A multi-point diffusion lens processing device for processing and manufacturing the multi-point diffusion lens according to any one of claims 1 to 3, characterized in that: The invention comprises a base (7), wherein a fixture table (8) and a column (9) are provided on the base (7), and a plurality of tooling columns (10) for limiting the position of the lens to be processed and a plurality of support columns (11) for supporting the bottom of the lens to be processed are provided on the fixture table (8); The column (9) is rotatably connected to a first frame (12), and the first frame (12) is rotatably connected to a second frame (14) via a connecting rod (13). The bottoms of the first frame (12) and the second frame (14) are higher than the tooling column (10) and the support column (11) to form a processing space (15). The column (9) is provided with a cross bar (16) located above the first frame (12) and the second frame (14), and a cross bar (16) is provided below the cross bar (16) in the shape of the lens to be processed. A consistent lens template (17), the lens template (17) and the lens to be processed are aligned vertically, a fixed section (18) protruding outward is provided on the top of one side of the second frame (14), a roller (19) for contacting the outer edge of the lens template (17) is provided on the fixed section (18), an industrial camera (20) is also provided on the fixed section (18), a movable section (21) is rotatably connected to the middle of one side of the second frame (14), a first adjustment motor (22) is provided on one side of the movable section (21), and the second frame (14) is provided with a plurality of movable sections (21) and a plurality of movable sections (21). The rotating shaft of the first regulating motor (22) and the roller (19) are on the same axis. A misaligned block (23) is provided on the rotating shaft of the first regulating motor (22). A waist-shaped shaft groove (24) is provided at the bottom of the misaligned block (23). A vertical hanging shaft (25) is provided in the shaft groove (24). A laser cutting head (26) is provided at the bottom of the hanging shaft (25). A slide seat (27) along the length direction of the shaft groove (24) is provided on the top of the laser cutting head (26). The slide seat (27) is movably connected to A slide (28), wherein a second regulating motor (29) is provided on the slide (28), a rotating shaft of the second regulating motor (29) passes through the shaft groove (24) and the hanging shaft (25) in the shaft groove (24), and a section of the rotating shaft of the second regulating motor (29) located in the shaft groove (24) is a spiral section, so that the laser cutting head (26) is shifted along the shaft groove (24) under the drive of the second regulating motor (29), and a dispensing device (30) is provided on the other side of the movable section (21); The fixture table (8) is further provided with an annular track (31) surrounding the tooling column (10) and the support column (11); a moving frame (32) is movably connected to the track (31); a lifting rod (33) is provided on the moving frame (32); a lifting block (34) is movably connected to the lifting rod (33); a drilling device (35) and a tapping device (36) are respectively provided on both sides of the lifting block (34).

5. The processing equipment for multi-point diffusion lens according to claim 4, characterized in that: A transition section (37) is provided on the upright column (9), and a plurality of swivels (38) are provided on one side of the first frame (12), and the plurality of swivels (38) are connected to the transition section (37).

6. The processing equipment for multi-point diffusion lens according to claim 4, characterized in that: The crossbar (16) is provided with a plurality of mounting components (39), and the lens template (17) is arranged below the crossbar (16) through the mounting components (39), and a contoured space (40) is formed between the lens template (17) and the crossbar (16).

7. The processing equipment for multi-point diffusion lens according to claim 4, characterized in that: A first mounting seat (41) is provided on one side of the movable section (21), and the first mounting seat (41) is used to install the first regulating motor (22). A second mounting seat (42) is provided on the other side of the movable section (21), and the second mounting seat (42) is used to install the dispensing device (30).

8. The processing equipment for multi-point diffusion lens according to claim 4, characterized in that: The first frame (12) and the second frame (14) are both square frames.

9. The processing equipment for multi-point diffusion lens according to claim 8, characterized in that: An external connection ear (43) is provided on one side of the first frame (12), and an internal connection ear (44) is provided on one side of the second frame (14). The external connection ear (43) and the internal connection ear (44) are rotatably connected via the connecting rod (13).

10. The processing equipment for multi-point diffusion lens according to claim 4, characterized in that: A bottom column (45) is provided on the base (7), and the bottom column (45) is supported below the fixture table (8).

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