Manufacturing method of intraocular lens and intraocular lens

Abstract

In order to efficiently separate the shaped artificial crystal from the epitaxial excess material and reduce the breakage rate, the present application provides a method for manufacturing an artificial crystal, comprising the following steps: a preparation step S1 of providing a mold for injecting an artificial crystal raw material; a cutting step S2 of cutting the artificial crystal raw material to form an artificial crystal and an epitaxial excess material surrounding the artificial crystal; and an artificial crystal separation step S3 of pressing or knocking the center part of the back of the mold to make the artificial crystal fall into a first designated position and the epitaxial excess material fall into a second designated position different from the first designated position, so that the artificial crystal does not contact the epitaxial excess material.

Description

Technical Field

[0001] This invention relates to the field of artificial lens technology, and more specifically, to a method for manufacturing an artificial lens and an artificial lens made according to the method. Background Technology

[0002] An intraocular lens (IOL) is an artificial lens that can be implanted inside the eye. As a precision optical component, the existing manufacturing process mainly includes the following steps: injecting the IOL raw material into a mold, and then cutting and processing the raw material into the required shape. Because most IOL raw materials contain acrylates or silicon materials, their surfaces are adhesive. After cutting to the desired shape, the IOL and any remaining epitaxial material after cutting may adhere together, making them difficult to peel off.

[0003] In existing technologies, separating the bonded artificial crystal from the epitaxial residue requires careful peeling by an operator using tweezers. Improper operation can easily damage the artificial crystal, which has already been cut to the desired shape.

[0004] Therefore, the manufacturing process of artificial crystals often consumes a significant amount of time and manpower. Thus, how to provide an artificial crystal manufacturing method that can efficiently separate the artificial crystal cut to the desired shape from the remaining epitaxial material after cutting, reducing breakage rates while improving manufacturing efficiency, is a challenge currently facing the technology. Summary of the Invention

[0005] In order to efficiently separate the formed artificial crystal from the epitaxial residue and reduce the breakage rate, the present invention provides a method for manufacturing an artificial crystal, comprising the following steps:

[0006] Preparation step S1: Provide a mold for injecting the artificial lens raw materials;

[0007] Cutting step S2: Cut the artificial crystal raw material to form an artificial crystal and an epitaxial residue surrounding the artificial crystal;

[0008] Artificial crystal separation step S3: Press or tap the center part of the back of the mold so that the artificial crystal falls into the first designated position and the epitaxial residue falls into the second designated position, wherein the artificial crystal falling into the first designated position does not come into contact with the epitaxial residue falling into the second designated position.

[0009] According to the technical solution provided by the present invention, after the cutting step S2, the artificial crystal raw material has been cut into the artificial crystal and the epitaxial residue surrounding the artificial crystal, but the two are not completely separated. According to the technical solution provided by the present invention, because the central part of the back of the mold is pressed or struck, the artificial crystal that is not yet completely separated in the mold is forced to fall. At this time, the epitaxial residue in the mold, due to its certain degree of adhesion to the artificial crystal, also falls along with the artificial crystal. However, in the artificial crystal separation step S3, by pressing or striking the central part of the back of the mold, the cut artificial crystal falls at a first designated position, and the cut epitaxial residue falls at a second designated position different from the first designated position. The first and second designated positions satisfy the condition that the artificial crystal falling at the first designated position does not come into contact with the epitaxial residue falling at the second designated position.

[0010] In a preferred embodiment of the present invention, in preparation step S1, the artificial crystal raw material is injection molded in a mold to form an artificial crystal raw material sheet. The shape and size of the artificial crystal raw material sheet are matched with the setting of the first designated position and the second designated position to help prevent the artificial crystal from contacting the epitaxial residue.

[0011] In a preferred embodiment of the present invention, after the cutting step S2 is completed, a mold pressing step S21 is further included. In the mold pressing step S21, the back of the mold is bent by pressing the center portion of the mold back. According to this preferred embodiment, since the artificial crystal is located in the center of the artificial crystal raw material sheet, and the epitaxial material surrounds it, pressing the center portion of the mold back allows the artificial crystal and the epitaxial material inside the mold to have similar curvatures due to the deformation of the mold. Furthermore, the bending of the artificial crystal portion is different from that of the epitaxial material portion, making it easier to separate the cutting line between the artificial crystal and the epitaxial material that are not completely separated after cutting. This facilitates the artificial crystal separation step S3, where the artificial crystal and the epitaxial material smoothly fall into their respective first and second designated positions.

[0012] Preferably, the mold may further include an outer edge portion surrounding the mold body. Specifically, the method for bending the back of the mold may involve: applying a downward pressing force to the back of the mold body, i.e., a force passing through the back of the mold body and moving towards the artificial crystal raw material; and applying an upward force to both ends of the outer edge portion of the mold, i.e., a force passing through the outer edge portion and opposite in direction to the aforementioned pressing force, thereby causing the mold to bend to a specified degree.

[0013] Alternatively, the mold can be placed with the artificial crystal and epitaxial material facing downwards, i.e., the artificial crystal and epitaxial material are facing the first and second designated positions, and the mold pressing step S21 is performed on the mold. However, the mold can also be placed with the artificial crystal and epitaxial material facing upwards, and the mold pressing step S21 is performed; there are no particular limitations. The latter only requires that after performing the mold pressing step S21, the mold is flipped so that the artificial crystal and epitaxial material are facing the first and second designated positions.

[0014] In a preferred embodiment of the present invention, the first designated position is a groove provided on the tray, and the second designated position is a washer provided around the groove.

[0015] According to this preferred technical solution, since the first designated position is a groove on the tray, and the second designated position is a washer surrounding the groove, there is a height difference between the first and second designated positions. The artificial crystal falls into the groove, while the epitaxial residue falls on the washer portion surrounding the groove. In other words, the epitaxial residue is blocked by the washer and will not fall into the groove. This achieves smooth separation of the artificial crystal and the epitaxial residue.

[0016] Preferably, the groove in the artificial lens separation step S3 can accommodate the entire washer, and the washer is a ring-shaped structure that contacts the inner wall of the groove. With this structure, when the washer is placed in the groove, the inner wall of the groove will limit the washer's position, creating a height difference between the washer and the bottom of the groove. This process is simple and practical. Furthermore, since existing technologies also use trays with grooves for the artificial lens separation step, and the size of the groove matches the size of the artificial lens raw material wafer, designing the washer as a ring-shaped structure that contacts the inner wall of the groove to prevent the epitaxial excess material from falling is considered a more preferable low-cost solution, allowing for the continued use of existing trays.

[0017] In a preferred embodiment of the present invention, the artificial lens includes an optical portion and two support portions extending from the optical portion. The inner diameter of the gasket is greater than the distance between the outermost endpoints of the two support portions and less than the diameter of the artificial lens raw material.

[0018] According to this preferred technical solution, since the intraocular lens (IOL) includes an optical section and two support sections extending from the optical section, and the IOL needs to be fixed inside the eye after implantation to ensure image stability, two support sections extending from the optical section are provided at the edge of the optical section. This allows the IOL to be better fixed to the intraocular tissue after subsequent implantation. The inner diameter of the gasket is larger than the distance between the outermost ends of the two support sections, allowing the gasket to accommodate the entire IOL, including the support sections, ensuring that the IOL can pass through the gasket and fall into the groove. Conversely, the inner diameter of the gasket is smaller than the diameter of the IOL raw material, ensuring that the epitaxial excess material is blocked by the gasket, thus improving the reliability of the process for smoothly separating the IOL from the epitaxial excess material.

[0019] In a preferred embodiment of the present invention, the gasket is a silicone ring, which is adhesively disposed around the groove.

[0020] According to this preferred technical solution, the washer is made of silicone. Since silicone does not adhere to the artificial crystal raw material, it avoids the problem of excess material sticking to the washer and being difficult to remove, thus affecting the next process. Furthermore, the silicone ring is adhesively installed around the groove. This method of installing the silicone ring enhances the versatility of the artificial crystal manufacturing method provided in this invention; only one silicone ring needs to be adhesively attached to the groove portion of the existing tray, making the process simple and practical.

[0021] According to a preferred embodiment of the present invention, preparation step S1 further includes: placing the artificial crystal raw material on the tray in such a way that the raw material is facing downwards and toward the groove provided on the tray;

[0022] The cutting step S2 also includes the following steps: before cutting the artificial crystal raw material, moving the mold to the cutting chamber and flipping the mold so that the artificial crystal raw material faces upward.

[0023] According to the preferred technical solution, the mold is placed on the tray with the artificial lens material facing downwards and toward the groove set on the tray. In this way, the artificial lens material is covered by the mold and does not come into contact with the outside air, reducing the possibility of the artificial lens material being contaminated before being moved to the cutting chamber.

[0024] Meanwhile, the cutting process in the cutting step S2 is carried out in a specific cutting chamber, so that the debris generated in the cutting step S2 will not affect the environment of other steps such as the preparation step S1 or the artificial crystal separation step S3, thus ensuring that the entire artificial crystal manufacturing process meets the requirements.

[0025] In a preferred embodiment of the present invention, the cutting step S2 further includes: blowing cold air at a specified temperature into the cutting chamber when cutting the artificial crystal raw material.

[0026] According to this preferred technical solution, blowing cold air at a specified temperature into the cutting chamber can reduce the viscosity of the artificial crystal raw material, which is beneficial to the cutting process. Particularly preferred is to blow the cold air towards the location of the cutting blade. Because during high-speed cutting, the blade's contact with the artificial crystal raw material causes a temperature rise, and to avoid increased viscosity of the artificial crystal raw material due to the increased temperature, blowing cold air towards the blade facilitates heat dissipation during cutting. In the preferred technical solution of this invention, cutting step S2 further includes: using a vacuum system to remove cutting debris from the cutting chamber during the cutting of the artificial crystal raw material.

[0027] According to this preferred technical solution, the cutting debris can be processed immediately by a vacuum system, ensuring that the artificial crystal is not contaminated after cutting. Furthermore, because the temperature is low during the cutting process and the raw material of the artificial crystal has low viscosity, processing the cutting debris at this time is considered the preferred method.

[0028] In a preferred embodiment of the present invention, the time interval between completing the cutting step S2 and starting the mold pressing step S3 does not exceed a specified time.

[0029] According to this preferred technical solution, in the cutting step S2, the artificial crystal raw material wafer is kept in a low-temperature environment. Therefore, the cut artificial crystal and epitaxial residue will also maintain a low temperature for a period of time, gradually approaching room temperature over time. Since the viscosity of the artificial crystal raw material is low at low temperatures, and increases with rising temperature, the adhesion between the artificial crystal and the epitaxial residue increases, which is detrimental to the separation of the cut artificial crystal and the epitaxial residue. Therefore, it is considered preferable to start the artificial crystal separation step S3 within a specified time after the cutting step S2, while the temperature of the artificial crystal and the epitaxial residue is still low.

[0030] In a preferred embodiment of the present invention, the specified time is less than 30 seconds.

[0031] According to the preferred technical solution, the viscosity of the artificial crystal raw material does not change significantly within 30 seconds after the completion of the cutting step S2. Therefore, performing the artificial crystal separation step S3 as soon as possible within 30 seconds can further ensure the efficient separation of the artificial crystal from the epitaxial residue.

[0032] The present invention also provides an artificial lens, which is manufactured using the artificial lens manufacturing method of any of the above technical solutions.

[0033] According to the technical solution provided by the present invention, the manufacturing method of artificial lenses shortens the time required to produce artificial lenses, improves quality, and reduces manpower input, thereby reducing the cost of artificial lenses and improving production efficiency. Attached Figure Description

[0034] Figure 1 This is a schematic flowchart of the method for manufacturing an artificial lens provided in the first embodiment of the present invention;

[0035] Figure 2 This is a schematic diagram of the mold provided in the embodiment of the present invention;

[0036] Figure 3 This is a schematic diagram of the structure of the artificial crystal and epitaxial residue provided in the embodiments of the present invention;

[0037] Figure 4 This is a front view of a tray equipped with gaskets provided in an embodiment of the present invention;

[0038] Figure 5 This is a cross-sectional view of the tray provided in an embodiment of the present invention;

[0039] Figure 6 This is a schematic flowchart of the method for manufacturing an artificial crystal provided in the second embodiment of the present invention;

[0040] Figure 7 This is a schematic diagram showing the dimensional relationship between the artificial lens and the gasket provided in an embodiment of the present invention.

[0041] Explanation of reference numerals in the attached figures:

[0042] Mold 10, mold body 11, mold outer edge 12, artificial crystal 20, epitaxial material 30, tray 50, groove 51, outer peripheral area A of the groove, surface B of the tray, gasket 60, optical part 21, support part 22. Detailed Implementation

[0043] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the invention and are not intended to limit the scope of protection of the invention. Those skilled in the art can make adjustments as needed to adapt to specific applications. It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0044] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0045] [First Implementation Method]

[0046] refer to Figure 1 This embodiment provides a method for manufacturing an artificial lens, including the following steps:

[0047] Preparation step S1: Provide a mold 10 for injecting artificial lens raw materials;

[0048] Cutting step S2: Cut the artificial crystal raw material to form artificial crystal 20 and epitaxial residue 30 surrounding artificial crystal 20;

[0049] Artificial crystal separation step S3: Press or tap the center part of the back of the mold 10 so that the artificial crystal 20 falls into the first designated position and the epitaxial residue 30 falls into the second designated position, wherein the artificial crystal falling into the first designated position does not come into contact with the epitaxial residue falling into the second designated position.

[0050] Specifically, refer to Figure 2 The artificial lens raw material is injection molded in mold 10 to form a circular artificial lens raw material sheet. (Reference) Figure 3 After cutting, a circular artificial lens raw material sheet forms an artificial lens 20 in the middle. To remove the artificial lens 20 and separate it from the epitaxial residue 30, the operator presses the back of the mold 10 containing the artificial lens 20 and the epitaxial residue 30, or taps it with a small hammer or other tool. Because the center of the back of the mold 10 is pressed or tapped, the artificial lens 20 in the mold 10 is forced to fall to a first designated position. At this time, the epitaxial residue 30 in the mold 10, due to a certain degree of adhesion to the artificial lens 20, also tends to fall, but will fall to a second designated position different from the first designated position. These first and second designated positions satisfy the condition that the artificial lens 20 falling at the first designated position does not come into contact with the epitaxial residue 30 falling at the second designated position.

[0051] It is understandable that the artificial crystal 20 and the epitaxial residue 30 stopped at different positions during the descent, ultimately achieving their separation. For example, refer to... Figure 4 Alternatively, the groove 51 on the tray 50 can be set to a size smaller than that of the artificial crystal material sheet. In this way, when the epitaxial material 30 falls, it will stay on the surface of the tray 50, while the artificial crystal 20 will fall to the bottom of the groove 51.

[0052] The cutting method, pressing or knocking form can be selected by those skilled in the art according to actual needs. As long as the artificial crystal 20 and the epitaxial residue 30 stop at different positions during the falling process in the artificial crystal separation step S3, and present a state of separation, the technical effect of efficiently separating the formed artificial crystal 20 and the epitaxial residue 30 can be achieved, thereby reducing the breakage rate.

[0053] [Second Implementation Method]

[0054] refer to Figure 6 The method for manufacturing an artificial lens provided in this embodiment includes the following steps:

[0055] Preparation step S1: Provide a mold 10 for injecting artificial lens raw materials. The mold 10 is placed on the tray 50 with the artificial lens raw materials facing downward and towards the groove 51 provided on the tray 50.

[0056] Cutting step S2: Move the mold 10 to the cutting chamber and flip the mold so that the artificial crystal raw material faces upward, and cut the artificial crystal raw material. During cutting, cold air at a specified temperature is blown into the cutting chamber, and a vacuum system is used to remove cutting debris from the cutting chamber. After cutting, the artificial crystal raw material forms an artificial crystal 20 and an epitaxial residue 30 surrounding the artificial crystal 20.

[0057] The artificial lens 20 includes an optical section 21 and two support sections 22 extending from the optical section 21.

[0058] Mold pressing step S21: Press the center part of the back of the mold 10 to make the back of the mold 10 bend.

[0059] Artificial lens separation step S3: Press or tap the center part of the back of the mold 10 so that the artificial lens 20 falls into the groove 51 set on the tray 50, and the epitaxial material 30 falls on the washer 60 set around the groove 51, so that the artificial lens 20 and the epitaxial material 30 do not come into contact. The washer 60 is a silicone ring and is set around the groove 51 by adhesive.

[0060] The inner diameter of the washer 60 is greater than the distance between the outermost ends of the two support portions 22 and less than the diameter of the artificial crystal raw material.

[0061] Furthermore, within 30 seconds after the completion of the cutting step S2, the mold pressing step S21 and the artificial crystal separation step S3 are executed sequentially.

[0062] Next, each step in this embodiment will be described in detail.

[0063] In preparation step S1, refer to Figure 2 The artificial lens raw material is injection molded within the mold body 11 to form a circular artificial lens raw material sheet. Furthermore, the mold 10 also includes a mold outer edge 12 surrounding the mold body 11. (Reference) Figure 4 The main view of the middle mold 10 and Figure 5 A cross-sectional view of the mold 10 shows that when the mold 10 is upside down on the tray 50, the circular artificial crystal raw material sheet located in the mold body 11 faces the groove 51 on the tray 50, and the outer edge 12 of the mold is located in the outer peripheral area A of the groove 51. Since there is a height difference between the outer peripheral area A of the groove 51 and the surface B of the tray 50, the mold 10 placed on the tray 50 is thus limited within the outer peripheral area A of the groove.

[0064] refer to Figure 4 The tray 50 has multiple disc-shaped grooves 51 arranged on it. In the preparation step S1, multiple molds 10 filled with artificial crystal raw materials are placed upside down in the disc-shaped grooves 51 on the tray 50 in order to avoid the artificial crystal raw materials from coming into contact with the outside air and being contaminated.

[0065] Although in this embodiment, the position of the mold 10 on the tray 50 is limited and fixed by the height difference between the outer peripheral region A of the groove 51 and the surface B of the tray 50, and the engagement with the outer edge 12 of the mold, in other embodiments, the same purpose can be achieved by providing several limiting blocks around the groove 51 on the surface of the tray 50.

[0066] In cutting step S2, a tray 50 containing multiple molds 10 filled with artificial crystal raw materials is placed within the working range of the robotic arm. The robotic arm picks up one mold 10 filled with artificial crystal raw materials from the tray 50 and moves it to the cutting chamber. The robotic arm flips the mold 10 so that the artificial crystal raw materials are facing upwards, and the cutting blade cuts the artificial crystal raw materials. During cutting, -30°C cold air is blown towards the location of the cutting blade to reduce the viscosity of the artificial crystal raw materials and to prevent the high temperatures generated during high-speed cutting from altering the physicochemical properties of the artificial crystal raw materials. During cutting, a vacuum system is used to remove cutting debris from the cutting chamber. Due to the low temperature during cutting, the viscosity of the artificial crystal raw materials is low, and the cutting debris is easier to handle. (Reference) Figure 3 After cutting, the artificial crystal raw material forms an artificial crystal 20 and an epitaxial residue 30 surrounding the artificial crystal 20.

[0067] refer to Figure 7 The artificial lens 20 includes an optical part 21 and two support parts 22 extending from the optical part 21. After the optical part 21 is implanted into the eye, it needs to be fixed in the eye to ensure the stability of the imaging. Therefore, two support parts 22 extending from the optical part 21 are provided at its edge, so that the artificial lens 20 can be better fixed with the intraocular tissue after subsequent implantation into the eye.

[0068] In the mold pressing step S21, the robotic arm grasps the mold 10, which contains the artificial crystal 20 and the epitaxial residue 30 after cutting, flips it over, and moves it to the pressing position. (Reference) Figure 2A downward force is applied to the back of the mold body 11, and an upward force is applied to both ends of the outer edge 12 of the mold, thereby causing the mold 10 to bend to a specified degree. As a result, the artificial crystal 20 and the epitaxial material 30 located within the mold 10 also exhibit similar curvature due to the deformation of the mold 10, promoting the separation of the artificial crystal 20 and the epitaxial material 30. Finally, the mold 10 containing the artificial crystal 20 and the epitaxial material 30 is placed back into the tray 50, in its original position before cutting.

[0069] Alternatively, the mold 10 can be placed with the artificial crystal 20 and the epitaxial material 30 facing downwards, i.e., the artificial crystal 20 and the epitaxial material 30 facing the tray 50, and the mold pressing step S21 can be performed on the mold 10. However, the mold 10 can also be placed with the artificial crystal 20 and the epitaxial material 30 facing upwards, and the mold pressing step S21 can be performed. There is no particular limitation. In the latter case, after performing the mold pressing step S21, the mold 10 can be flipped so that the artificial crystal 20 and the epitaxial material 30 face the tray 50.

[0070] In the intraocular lens separation step S3, the mold 10, containing the intraocular lens 20 and the epitaxial filler 30, is placed upside down on the tray 50. A small hammer is used to strike the center of the back of the mold 10, or the center of the back of the mold 10 is pressed downwards. The intraocular lens 20 in the mold 10 falls into the groove 51 provided on the tray 50 under pressure. The epitaxial filler 30 in the mold 10, due to its adhesion to the intraocular lens 20, also tends to fall, but due to the obstruction of the gasket 60 around the groove 51, the epitaxial filler 30 does not fall with the intraocular lens 20, but remains on the gasket 60. (Reference) Figure 7 The inner diameter of the washer 60 is greater than the distance L between the outermost ends of the two support portions 22 and less than the diameter of the circular artificial lens raw material sheet (the diameter of the circular artificial lens raw material sheet is equivalent to the diameter of the mold body 11). Thus, the inner diameter of the washer 60 is not so small that it would block the artificial lens 20 from passing over it; nor is the inner diameter so large that it cannot block the epitaxial excess material 30, allowing the epitaxial excess material 30 and the artificial lens 20 to pass through the washer 60 and fall into the groove 51 together.

[0071] The washer 60 is made of silicone. Since silicone does not adhere to the artificial crystal raw material, it prevents the extra material 30 from sticking to the washer 60 and being difficult to remove, thus affecting the next process. Of course, besides silicone, other materials that do not adhere to the artificial crystal raw material can also be used to manufacture the washer 60.

[0072] The silicone ring is attached to the periphery of the groove 51 by means of adhesive. This method of attaching the silicone ring enhances the versatility of the artificial lens manufacturing method provided in this embodiment, as only one silicone ring needs to be attached to the existing tray 50.

[0073] It is understandable that when performing the artificial crystal separation step S3, there is less than 30 seconds between the cutting step S2 and the artificial crystal 20. At this time, the temperature of the artificial crystal 20 and the epitaxial residue 30 is low, and the adhesion between them is small. The pressing or tapping force, combined with the intervention of the washer 60, is sufficient to resist the adhesion between the artificial crystal 20 and the epitaxial residue 30, thereby achieving separation. In addition, to ensure the reliability of the artificial crystal manufacturing method in this embodiment, a pressing step S21 is added so that the mold 10 is separated to a certain extent due to a bending before being placed back into the tray 50.

[0074] This embodiment also provides an artificial lens 20, which is manufactured using the artificial lens manufacturing method provided in this embodiment. Because the artificial lens manufacturing method shortens the time required to produce the artificial lens and reduces manpower input, the cost of the artificial lens 20 is reduced, its output is increased, and it becomes more competitive in the market.

[0075] The following operational comparison experiments can be used to illustrate the technical effects of the artificial crystal manufacturing method in this embodiment.

[0076] Experimental Procedure: Prepare 20 molds 10 containing the raw material for the artificial lens (IOL), and perform a cutting step S2 on them. Place 10 of the 20 molds, each containing the IOL 20 and epitaxial material 30, into a groove 51 fitted with a washer 60, and place the remaining 10 molds into a groove 51 without the washer 60. After performing the same tapping action, compare the time difference taken in the IOL separation step S3 between the two molds.

[0077] Experimental Results: In the groove 51 with washer 60, the artificial lens 20 and the epitaxial material 30 were separated, with an average time of 5 seconds for the entire artificial lens separation step S3. In the groove 51 without washer 60, the artificial lens 20 and the epitaxial material 30 were stuck together, requiring manual pulling with tweezers to separate the epitaxial material 30 from the artificial lens 20. Furthermore, one out of ten artificial lenses 20 was damaged during this pulling process, with an average time of 12 seconds for the entire artificial lens separation step S3.

[0078] Experimental conclusion: By using the groove 51 with the gasket 60 in the artificial lens separation step S3, the time of the artificial lens separation step S3 can be shortened by about 7 seconds, and the yield of artificial lens 20 is also improved.

[0079] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. Those skilled in the art can make various modifications and changes to the above embodiments under the teachings of this application without departing from the scope of this application.

[0080] (a) For example, although the embodiment only describes the form in which the artificial crystal and the epitaxial material face downwards and the mold pressing step S21 is performed on the mold, the mold can also be placed in the form in which the artificial crystal and the epitaxial material face upwards and the mold pressing step S21 is performed, and there is no particular limitation.

[0081] (b) For example, although the structure of the mold in the embodiment is as follows Figure 2 As shown, the mold includes a mold body 11 and a mold outer edge 12, but other mold structures can also realize the technical solution of the present invention, such as replacing the outer edge 12 with lugs on both sides of the body.

[0082] (c) For example, although the tray structure in the implementation is as follows Figure 4 As shown, however, area A for the limiting mold is not necessary.

[0083] (d) For example, although the groove in the embodiment is circular, a square groove can also achieve the technical effect of the present invention, and there is no particular limitation.

[0084] (e) For example, although in the embodiment the artificial crystal raw material is injection molded in the mold 10 to form a circular artificial crystal raw material sheet, there are no special requirements for the shape of the artificial crystal raw material sheet, as long as the required artificial crystal can be cut from the raw material sheet.

Claims

1. A method for manufacturing an artificial crystal, characterized in that, Includes the following steps: Preparation step S1: Provide a mold for injecting artificial lens raw materials, wherein the artificial lens raw materials are injection molded in the mold to form an artificial lens raw material sheet; Cutting step S2: Cut the artificial crystal raw material sheet to form an artificial crystal and an epitaxial residue surrounding the artificial crystal; Artificial lens separation step S3: Press or tap the center part of the back of the mold so that the artificial lens falls into the first designated position and the epitaxial residue falls into the second designated position, wherein the artificial lens falling into the first designated position and the epitaxial residue falling into the second designated position do not come into contact; the first designated position is a groove provided on the tray and the second designated position is a washer provided around the groove.

2. The method for manufacturing an artificial lens according to claim 1, characterized in that, After the cutting step S2 is completed, the process further includes a mold pressing step S21. The mold pressing step S21: Press the center part of the back of the mold to make the back of the mold bend.

3. The method for manufacturing an artificial lens according to claim 1, characterized in that, The artificial lens includes an optical portion and two support portions extending from the optical portion. The inner diameter of the gasket is greater than the distance between the outermost endpoints of the two support portions and less than the diameter of the artificial lens raw material sheet.

4. The method for manufacturing an artificial lens according to claim 3, characterized in that, The gasket is a silicone ring, which is attached to the periphery of the groove by means of adhesive bonding.

5. The method for manufacturing an artificial lens according to claim 1, characterized in that, The preparation step S1 further includes: the mold is placed on the tray in such a way that the artificial crystal raw material is facing downwards and toward the groove provided on the tray; The cutting step S2 further includes: before cutting the artificial lens raw material sheet, moving the mold to the cutting chamber and flipping the mold so that the artificial lens raw material sheet faces upward.

6. The method for manufacturing an artificial lens according to claim 5, characterized in that, The cutting step S2 further includes the step of blowing cold air at a specified temperature into the cutting chamber when cutting the artificial crystal raw material sheet.

7. The method for manufacturing an artificial lens according to claim 5 or 6, characterized in that, Cutting step S2 further includes: when cutting the artificial crystal raw material sheet, using a vacuum system to remove cutting debris from the cutting chamber.

8. The method for manufacturing an artificial lens according to claim 7, characterized in that, The time interval between completing the cutting step S2 and starting the artificial lens separation step S3 shall not exceed the specified time.

9. The method for manufacturing an artificial lens according to claim 8, characterized in that, The specified time is less than 30 seconds.

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