Lens dip coating control method and apparatus, electronic device, and readable storage medium

Abstract

The application discloses a lens immersion coating control method and device, electronic equipment and readable storage medium. The lens immersion coating control method comprises the following steps: after the target lens is immersed, the total pulling time of the target lens is obtained, wherein the total pulling time is the total time for pulling the target lens from the pulling starting position immersed in the lens strengthening liquid to the pulling end position separated from the lens strengthening liquid; the pulling acceleration of the target lens in the total pulling time is determined, wherein the direction of the pulling acceleration is opposite to the movement direction of the target lens; and the target lens is controlled according to the pulling acceleration to move to the pulling end position after the total pulling time. The application solves the technical problem of poor film thickness uniformity of the lens after the immersion coating process.

Description

Technical Field

[0001] This application relates to the field of dip coating technology, and in particular to a lens dip coating control method, apparatus, electronic device and readable storage medium. Background Technology

[0002] With the continuous development of technology, virtual reality (VR) devices are widely used in people's lives. The base materials used in virtual reality devices are mostly high-molecular resins with advantages such as light weight, high impact resistance and good processability. For example, lenses made of resin. In order to avoid the defects of high-molecular resins in terms of hardness, wear resistance and scratch resistance, dip coating process is usually used to strengthen the surface of the product.

[0003] Currently, during the dip-coating process, lenses are typically left to stand in the lens strengthening solution for a period of time before being pulled out of the solution at a set speed. However, because the strengthening solution on the lens surface does not solidify during the pulling process, the strengthening solution flows and accumulates from the top to the bottom of the lens under the combined effects of gravity and surface tension. This results in a significant difference in film thickness between the bottom and top of the lens, making lenses that have undergone the dip-coating process prone to defects caused by film thickness differences. Therefore, the film thickness uniformity of lenses after the dip-coating process is currently poor. Summary of the Invention

[0004] The main objective of this application is to provide a lens dip-coating control method, device, electronic device, and readable storage medium, aiming to solve the technical problem of poor film thickness uniformity of lenses after dip-coating process in the prior art.

[0005] To achieve the above objectives, this application provides a lens dipping and coating control method, the lens dipping and coating control method comprising:

[0006] After the target lens is immersed, the total lifting time of the target lens is obtained, wherein the total lifting time is the total time to lift the target lens from the lifting start position immersed in the lens strengthening liquid to the lifting end position detached from the lens strengthening liquid.

[0007] Determine the lifting acceleration of the target lens during the total lifting time, wherein the direction of the lifting acceleration is opposite to the direction of movement of the target lens;

[0008] The target lens is dipped and coated according to the lifting acceleration so that the target lens moves to the lifting termination position after the total lifting time.

[0009] To achieve the above objectives, this application also provides a lens dipping and coating control device, the lens dipping and coating control device comprising:

[0010] The acquisition module is used to acquire the total lifting time of the target lens after the target lens is immersed in the lens strengthening liquid, wherein the total lifting time is the total time to lift the target lens from the lifting start position immersed in the lens strengthening liquid to the lifting end position detached from the lens strengthening liquid.

[0011] A determining module is used to determine the lifting acceleration of the target lens during the total lifting time, wherein the direction of the lifting acceleration is opposite to the direction of movement of the target lens;

[0012] The control module is used to control the dip coating of the target lens according to the lifting acceleration, so that the target lens moves to the lifting termination position after the total lifting time.

[0013] This application also provides an electronic device comprising: at least one processor and a memory communicatively connected to the at least one processor, the memory storing instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the steps of the lens dipping control method described above.

[0014] This application also provides a computer-readable storage medium storing a program for implementing a lens dip-coating control method, wherein when the program for the lens dip-coating control method is executed by a processor, it implements the steps of the lens dip-coating control method as described above.

[0015] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the lens dipping control method described above.

[0016] This application provides a lens immersion coating control method, apparatus, electronic device, and readable storage medium. Specifically, after the target lens is immersed, the total lifting time of the target lens is obtained, wherein the total lifting time is the total time for lifting the target lens from the lifting start position immersed in the lens strengthening liquid to the lifting end position detached from the lens strengthening liquid; the lifting acceleration of the target lens during the total lifting time is determined, wherein the direction of the lifting acceleration is opposite to the movement direction of the target lens; and the immersion coating is controlled according to the lifting acceleration so that the target lens moves to the lifting end position after the total lifting time.

[0017] In this application, when dipping the target lens using a dip-coating process, the target lens is first controlled to be immersed in a conventional manner. After the target lens is immersed, the total time for lifting the target lens from immersion in the lens strengthening solution to detachment from the lens strengthening solution is obtained. Then, the lifting acceleration of the target lens during the total lifting time is determined. That is, the speed of the target lens during the lifting process is changed by the lifting acceleration. Finally, the target lens is lifted to the lifting termination position by the lifting acceleration. Since the direction of the lifting acceleration is opposite to the direction of movement of the target lens, the total lifting time from the lifting start position to the lifting termination position under the action of the lifting acceleration will be greater than the total time of lifting at the set speed. In other words, the purpose of slowing down the lifting process by lifting acceleration opposite to the direction of movement of the target lens is achieved.

[0018] Because the total lifting time will be extended after the speed is reduced, the target lens will have more time to drain the strengthening liquid at the bottom of the lens from the lens surface through the combined action of liquid surface tension and gravity. In other words, it reduces to some extent the large difference between the film thickness at the bottom and top of the lens caused by the accumulation of strengthening liquid at the bottom of the lens.

[0019] Based on this, this application controls the lifting process by slowing down the lifting acceleration after the target lens is fully immersed, thereby extending the total lifting time of the target lens. This allows the uncured strengthening liquid on the target lens surface to detach from the target lens more time, resulting in a smaller difference in film thickness between the top and bottom of the target lens. This is achieved by controlling the lens to be lifted from the strengthening liquid at a set speed, rather than controlling the lens to be lifted from the strengthening liquid at a predetermined speed. Therefore, this overcomes the technical defect that, because the strengthening liquid on the lens surface is not cured during the lifting process, it flows and accumulates from the top to the bottom of the lens under the combined action of gravity and surface tension, leading to a large difference in film thickness between the top and bottom of the lens. This, in turn, makes the lens susceptible to defects caused by film thickness differences after the immersion coating process. Therefore, this application improves the film thickness uniformity of the lens after the immersion coating process. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

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

[0022] Figure 1 This is a schematic diagram of a scenario for uniform lens immersion control in the lens immersion control method provided in Embodiment 1 of this application;

[0023] Figure 2 This is a schematic flowchart of the lens coating control method provided in Embodiment 1 of this application;

[0024] Figure 3 This is a schematic diagram of the lens under different dipping modes in the lens dipping control method provided in Embodiment 1 of this application;

[0025] Figure 4 This is a schematic flowchart of the lens dipping and coating control method provided in Embodiment 2 of this application;

[0026] Figure 5 This is a schematic diagram of the lens dipping control device provided in Embodiment 3 of this application;

[0027] Figure 6 This is a schematic diagram of the structure of the electronic device provided in Embodiment 4 of this application.

[0028] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1

[0031] First, it should be understood that the base material currently used for virtual reality devices such as virtual reality helmets, virtual reality headsets, or virtual reality glasses is polymer resin. Taking glasses as an example, compared to the earlier use of glass as the base material, polymer resin has advantages over glass in terms of quality, impact resistance, processability, and auxiliary properties (addition of different chemical additives). However, it has certain shortcomings in hardness, wear resistance, and scratch resistance. Therefore, products made of resin materials are usually strengthened (hardened) through dip coating processes to improve performance. For example, taking the hardening equipment system for hardening lenses as an example, the specific process is as follows: 1) Before formal production 1) First, set the lifting position and corresponding lifting speed in the lifting speed parameter setting interface, and then save; 2) When starting batch production, the product descends at the default descent speed of the built-in program until the part of the product that needs to be hardened is immersed in the hardening liquid, and then stands in the hardening liquid for a certain period of time to allow the lens surface to be fully immersed in the hardening liquid. For example, the time for the lens to stand in the hardening liquid can be set through the control panel; 3) After the immersion time is over, the lifting rod will lift according to the height and speed at the corresponding position preset in the control panel. For example, the speed at the beginning and end of the lifting position can be set. 4) The lens is pulled at the same speed at the stop position, that is, the lens is pulled at a uniform speed during the dip coating process; the top of the lens is pulled out of the surface of the hardening liquid first. As the pulling process continues, more and more of the lens hardening part will be exposed. Among them, the part that is exposed first is still in a liquid flowable state because the hardening liquid attached to the product surface has not yet solidified. Therefore, the hardening liquid at the top of the product will flow down the product surface and accumulate at the bottom under the action of its own gravity and liquid surface tension; 5) After the bottom of the lens is also pulled out of the hardening liquid at the same speed, that is, the lens is completely exposed to the outside of the hardening liquid. At this time, the hardening liquid at the top of the lens is... The hardening liquid will continue to flow towards the bottom. Due to the excessively fast speed at which the hardening liquid is removed from the lens surface, the hardening liquid flowing down from the top does not have enough time to be guided away from the lens surface under the action of the surface tension of the hardening liquid, thus accumulating at the bottom of the lens; 6) The lens pulled out of the hardening liquid surface will immediately enter the high-temperature pre-curing oven for curing under the action of the robot arm. After entering the high-temperature curing oven, the hardening liquid on the lens surface will immediately solidify and stop flowing until it is completely cured. At this time, the film thickness is thicker where the hardening liquid accumulates at the bottom of the product; 7) The cured lens is subjected to appearance inspection and tests for film thickness, abrasion resistance, and scratch resistance, among which, refer to Figure 1 , Figure 1The diagram illustrates a scenario of uniform speed dip coating control for lenses. Figure (a) shows a lens being controlled to descend at a uniform speed into the strengthening liquid for wetting, and Figure (b) shows a lens being controlled to rise at a uniform speed to the outside of the strengthening liquid. The arrows in Figure (a) indicate the direction of lens descent, and the arrows in Figure (b) indicate the direction of lens rise. However, when testing the hardness, abrasion resistance, and scratch resistance of products dip-coated under uniform speed control, defects are prone to occur. Analysis revealed that during the rising process, gravity and surface tension cause the uncured strengthening liquid to accumulate from the top to the bottom of the product, resulting in a significant difference in film thickness between the top and bottom of the product, i.e., poor film thickness uniformity. However, simply reducing the rising speed would reduce production capacity. Therefore, there is an urgent need for a dip coating control method that can improve film thickness uniformity while ensuring production capacity.

[0032] This application provides a lens coating control method. In Embodiment 1 of the lens coating control method of this application, refer to... Figure 2 The lens coating control method includes:

[0033] Step S10: After the target lens is soaked, the total lifting time of the target lens is obtained, wherein the total lifting time is the total time to lift the target lens from the lifting start position soaked in the lens strengthening liquid to the lifting end position detached from the lens strengthening liquid.

[0034] Step S20: Determine the lifting acceleration of the target lens during the total lifting time, wherein the direction of the lifting acceleration is opposite to the direction of movement of the target lens;

[0035] Step S30: According to the lifting acceleration, the target lens is dip-coated to control the movement of the target lens to the lifting termination position after the total lifting time.

[0036] In this embodiment, it should be noted that, although Figure 2The logical sequence is shown, but in some cases, the steps shown or described may be performed in a different order than that shown here. The lens coating control method is applied to a lens coating control system, which is deployed in a lens hardening device. Specifically, the lens hardening device can be a fully automatic or semi-automatic lens hardening machine. For example, in one implementable embodiment, the lens hardening device is equipped with a preset coating control interface, where the user can input coating control commands. One end of the lens hardening device is connected to one end of the lifting rod drive motor via a wiring connection, and the other end of the lifting rod drive motor is connected to one end of a drive linkage. The other end of the drive linkage is connected to the lifting rod. The lifting rod is equipped with... A lens clamping fixture is provided to hold the lens. A lens hardening tank is placed below the lens, and the lens hardening liquid tank contains lens hardening liquid. That is, the lens hardening equipment can send control commands to the lifting motor, so that the lifting rod rises or falls under the drive of the motor. In this way, the lifting rod drives the lens clamped in the lens clamping fixture to rise or fall, thereby completing the lens dip coating process. The rising or falling speed of the lens can be the same or different. The specific value is set according to the actual production needs of the lens. This application embodiment does not make a specific limitation. For example, the falling speed of the lens can be set to 4mm / s, and the rising speed of the lens can be set to 4mm / s.

[0037] Additionally, the target lens refers to the lens that undergoes a dip-coating process under the control of lens hardening equipment. Complete immersion of the target lens means that the target lens has been fully immersed in the lens hardening solution for the duration of the immersion pause. Specifically, whether the target lens is fully immersed in the lens hardening solution can be determined by the drop height value of the target lens. When the drop height value reaches a preset value, it is determined that the target lens is fully immersed in the lens hardening solution. That is, complete immersion of the target lens can mean that the entire target lens is immersed in the lens hardening solution, or that only a portion of the target lens is immersed in the lens hardening solution. The lens hardening solution can specifically be composed of nano-metal oxides and organosilicon. Before the target lens is fully immersed, the polymer composed of alkane monomers can be controlled by a lens hardening device to descend into the lens hardening liquid for immersion. For example, in one feasible method, the user inputs the default descent speed and default descent height through a preset immersion control interface. After the target lens is detected to be clamped by the lens clamping fixture, the lifting rod drive motor is controlled to drive the target lens into the lens hardening liquid tank at the default descent speed until the target lens reaches the default descent height. The target lens is then controlled to pause immersion at the current position. At this time, a timer is used to time the immersion. When the pause immersion time reaches the preset time, the immersion of the target lens is determined to be complete.

[0038] Additionally, it should be noted that the total lifting time is the total time required to lift the target lens from the starting position immersed in the lens strengthening solution to the ending position detached from the lens strengthening solution. The total lifting time, starting position, and ending position can all be obtained by the user through input in a preset coating control interface. For example, in one feasible approach, before performing the lens coating process, the user first inputs the default acceleration at each moment within the total lifting time in the corresponding parameter field of the preset coating control interface. For instance, the first moment t1 corresponds to the default acceleration α1, the second moment t2 corresponds to the default acceleration α2, and so on. The speed α2 is calculated, and the above mapping relationship is organized into an acceleration mapping table for storage. During batch production, the target lens first descends according to the default descent speed of the built-in program to immerse the target lens in the lens strengthening liquid. After the target lens is confirmed to be wetted, the immersion coating control system controls the target lens to rise under the action of the lifting acceleration until the target lens moves to the lifting termination position after the total lifting time. That is, when lifting the target lens, a corresponding default acceleration is assigned according to the different lifting times, and finally the target lens is controlled to move from the lifting start position to the lifting termination position within the total lifting time.

[0039] As an example, steps S10 to S30 include: obtaining the set descent speed, default acceleration, and total lifting time input by the user in the preset immersion control interface; establishing an acceleration mapping table based on the one-to-one correspondence between the default acceleration and different moments within the total lifting time; controlling the target lens to descend at the set descent speed until it is determined that the target lens is completely immersed in the lens strengthening liquid; determining that the immersion of the target lens is complete when the pause immersion time in the lens strengthening liquid reaches a preset immersion time threshold; obtaining the total lifting time of the target lens after immersion; querying the default acceleration corresponding to the target lens in the acceleration mapping table based on different moments within the total lifting time; and controlling the target lens to rise from the lifting start position to the lifting end position after the total lifting time using the lifting acceleration.

[0040] Since the immersion depth of the target lens in the lens strengthening liquid does not affect the coating effect of the target lens, the lifting start position can be set by the user. For example, the lifting start position can be set to the position where the top of the lens contacts the surface of the lens strengthening liquid, or the lifting start position can be set to the position where the top of the lens is at a preset height below the surface of the lens strengthening liquid.

[0041] In the lens immersion coating process, this application embodiment develops a visual human-machine interface for simple human-machine interaction between the user and the immersion coating hardening equipment. This allows for the interactive import and control of speed variation parameters during the target lens's ascent, and the control of the target lens's descent into the lens hardening liquid at a default descent speed for performance enhancement. After the target lens is fully immersed, the speed variation parameters control the target lens to rise at a slower speed during the lifting process. This extends the lifting time of the target lens compared to lifting it at a fixed speed. Specifically, because the direction of the lifting acceleration is opposite to the actual movement direction of the target lens, the lifting process is slower. Therefore, the uncured hardening liquid on the target lens has a longer time to detach from the target lens surface under the influence of liquid surface tension and gravity. As the amount of liquid accumulated at the bottom decreases, the difference in film thickness between the bottom and top of the target lens after curing will decrease, thus improving the uniformity of the film thickness after the immersion coating process.

[0042] On the other hand, it should be noted that, considering that inputting the default acceleration at each moment would increase the workload of manually configuring and setting the acceleration, a fixed acceleration can be set for the upward movement of the target lens during the total lifting time. That is, during the process of the target lens moving from the lifting start position to the lifting end position, the movement speed of the target lens decreases uniformly with a fixed acceleration. This saves the time of manually configuring and setting the acceleration while improving the uniformity of the film thickness after the lens is dip-coated.

[0043] The step of determining the lifting acceleration of the target lens during the total lifting time includes:

[0044] Step A10: Check if the set acceleration corresponding to the target lens exists in the set lifting acceleration table;

[0045] Step A20: If yes, then the set acceleration is used as the lifting acceleration of the target lens during the total lifting time.

[0046] Step A30: If not, determine the lifting acceleration of the target lens within the total lifting time based on the lifting start position, the lifting end position, and the total lifting time.

[0047] In this embodiment, it should be noted that, under normal circumstances, the target lens can be lifted after wetting by manually setting the acceleration. However, under some abnormal conditions, the clamped target lens may not necessarily undergo the wetting process. For example, the target lens may experience scratches or other defects during clamping. In this case, considering the need to save computing resources for the lens hardening equipment, the lifting acceleration can be given in real time after the target lens is wetted. At the same time, the method of directly giving acceleration and uniformly decreasing the speed requires too high a level of expertise from the user. In addition, the user is prone to errors when directly giving acceleration, which makes the production capacity susceptible to the influence of the given acceleration value. The lifting acceleration table is used to store the acceleration set by the user before the start of formal production. That is, the total lifting speed of the target lens is determined according to the specific position of the target lens between the lifting start position and the lifting end position during the total lifting time.

[0048] As an example, steps A10 to A30 include: detecting whether a set acceleration corresponding to the target lens exists in the set lifting acceleration table; if a set acceleration corresponding to the target lens is detected in the set lifting acceleration table, then the set acceleration is used as the lifting acceleration of the target lens in the total lifting time; if a set acceleration corresponding to the target lens is detected not in the set lifting acceleration table, then the lifting acceleration of the target lens in the total lifting time is determined according to the lifting start position, the lifting end position, and the total lifting time. Because in some special working conditions, the target lens does not undergo dip coating after clamping, and there is a risk of losing the set lifting acceleration table, a method for determining the lifting acceleration can be provided. That is, when a set acceleration exists in the set lifting acceleration table, the set acceleration is directly used as the lifting acceleration of the target lens during the total lifting time. When the set acceleration does not exist in the set lifting acceleration table, the lifting acceleration of the target lens during the total lifting time is determined in real time by obtaining previously saved parameters such as the lifting start position, lifting end position, and total lifting time. Since the determination of the lifting acceleration can be carried out in real time during the lifting process of the target lens, it lays the foundation for flexibly improving the film thickness uniformity of the lens after dip coating.

[0049] The step of determining the lifting acceleration of the target lens within the total lifting time based on the lifting start position, the lifting end position, and the total lifting time includes:

[0050] Step B10: Obtain the first velocity of the target lens at the lifting start position and the second velocity at the lifting end position;

[0051] Step B20: Determine the lifting acceleration of the target lens during the total lifting time based on the first speed and the second speed.

[0052] In this embodiment, it should be noted that, in order to improve the efficiency of determining the lifting acceleration, it can be calculated based on the uniformly accelerated kinematics formula in physics. That is, the lifting acceleration is calculated based on the parameters input by the user into the preset dip-coating control interface before the start of formal production. The calculation formula for the lifting acceleration is as follows:

[0053] α=Δv / Δt=v1-v2 / Δt

[0054] Where α is the lifting acceleration, v1 is the first velocity at the lifting termination position, v2 is the second velocity at the lifting start position, and Δt is the total lifting time.

[0055] As an example, steps B10 to B20 include: acquiring a first velocity of the target lens at the lifting start position and acquiring a second velocity of the target lens at the lifting end position; subtracting the first velocity and the second velocity to obtain a lifting velocity difference value of the target lens during the lifting process; inputting the lifting velocity difference value and the total lifting time into a preset acceleration calculation formula to calculate the lifting acceleration of the target lens during the total lifting time.

[0056] The step of determining the lifting acceleration of the target lens during the total lifting time based on the first speed and the second speed includes:

[0057] Step C10: Based on at least one acceleration change position of the target lens from the lifting start position to the lifting end position, divide the total lifting time into at least one lifting sub-time.

[0058] Step C20: Based on the first velocity, the second velocity, and the third velocity at the acceleration change position, determine the lifting acceleration of the target lens during each lifting time interval, wherein the magnitude of each lifting acceleration is inversely proportional to the height of each acceleration change position.

[0059] In this embodiment, it should be noted that, under normal circumstances, uniformly decelerating the target lens by using a fixed lifting acceleration opposite to the direction of movement of the target lens can reduce the film thickness difference between the top and bottom of the lens by extending the lifting time of the target lens. However, lifting the target lens by a fixed acceleration will still result in poor lens performance due to the film thickness difference between the top and bottom of the lens. Therefore, this embodiment proposes to further improve the film thickness uniformity of the target lens after dip coating by varying the lifting speed within different lifting heights.

[0060] Additionally, it should be noted that the acceleration change position is used to characterize the location where the acceleration change occurs. Specifically, it can be the starting position of the acceleration change, which can be obtained by the user through the preset dip-coating control interface. For example, in one feasible method, if the user inputs four positions L0, L1, L2, and L3 into the preset dip-coating control interface, where L3 > L2 > L1 > L0, L0 is the lifting start position, L3 is the lifting end position, and L1 and L2 are the acceleration change positions, then when the target lens is at the lifting start position L0, the lifting acceleration is α. 1. When the target lens is at the acceleration change position L1, the lifting acceleration is α2. When the target lens is at the acceleration change position L2, the lifting acceleration is α3. The values ​​of α1, α2 and α3 decrease sequentially, and their directions are all opposite to the movement direction of the target lens. The number of lifting times is specifically determined by the number of acceleration change positions. For example, 3 acceleration change positions correspond to 4 lifting times. For any lifting time, the calculation of its lifting acceleration can refer to the above calculation formula. This application embodiment does not make specific limitations.

[0061] As an example, steps C10 to C20 include: obtaining at least one acceleration change position of the target lens from the lifting start position to the lifting end position; dividing the total lifting time according to each acceleration change position to obtain at least one total lifting time; calculating the lifting acceleration of the target lens in each lifting sub-time using each lifting sub-time, the first speed, the second speed, and the third speed of the acceleration change position, wherein the magnitude of each lifting acceleration is inversely proportional to the height of each acceleration change position, and the height of each acceleration change position refers to the height from each acceleration change position to the lifting start position.

[0062] Prior to the step of using the set acceleration as the lifting acceleration of the target lens during the total lifting time, the lens coating control method further includes:

[0063] Step D10: Based on the set start position and set end position input by the user in the preset dip coating control interface, determine the set acceleration of the target lens during the set total lifting time.

[0064] Step D20: Save the set acceleration in the set lifting acceleration table, and control the target lens to descend into the lens strengthening liquid tank at the default speed for immersion until the target lens is fully immersed.

[0065] As an example, steps D10 to D20 include: obtaining the default descent speed, set starting position, set starting speed corresponding to the set starting position, set ending position, set ending speed corresponding to the set ending position, and set total lifting time input by the user in the setting parameter import item of the preset control interface; inputting the set starting speed, the set ending speed, and the set total lifting time into the preset lifting acceleration calculation formula to calculate the set acceleration of the target lens in the set total lifting time; saving the set acceleration in the set lifting acceleration table, and controlling the target lens to descend into the lens strengthening liquid tank at the default speed for immersion until the immersion time of the target lens in the lens strengthening liquid tank reaches the preset immersion time threshold.

[0066] Prior to the step of determining the set acceleration of the target lens during the set total lifting time based on the set position parameters and set speed parameters input by the user on the preset dipping control interface, the lens dipping control method further includes:

[0067] Step E10: If the control state of the target lens is detected to be uniform speed control state, then a status prompt message is displayed on the preset dip-coating control interface.

[0068] Step E20: Based on the status prompt information, detect whether the control status of the target lens has changed;

[0069] If the step is E30, then the following steps are performed: Based on the set start position and set end position input by the user in the preset dip coating control interface, determine the set acceleration of the target lens during the set total lifting time.

[0070] Step E40: If not, determine the fixed dipping speed corresponding to the target lens based on the set start position, the set end position, and the set total lifting time. After the target lens is wetted, control the dipping of the target lens according to the fixed dipping speed so that the target lens moves to the lifting end position after the total lifting time.

[0071] In this embodiment, it should be noted that the dip coating mode of the dip coating process can also be set on the preset dip coating control interface. Specifically, the dip coating mode can be a uniform speed dip coating mode or a decelerating dip coating mode. The specific dip coating mode can be set by the user's input command on the preset dip coating control interface. Different dip coating modes correspond to different control states. For example, in one implementable method, assuming the dip coating mode can be divided into a uniform speed dip coating mode and a uniformly decelerating dip coating mode, refer to... Figure 3 , Figure 3The diagram shows the cross-sectional views of the lens under different dipping modes. (c) shows the cross-sectional view of the lens under the uniform dipping mode, where the thickness difference between the top film thickness m1 and the bottom film thickness m2 can be 5μm. (d) shows the cross-sectional view of the lens under the uniform variable speed dipping mode, where the thickness difference between the top film thickness m3 and the bottom film thickness m4 can be 2μm. 21 represents the substrate of the target lens, and 22 represents the thickness of the hardening film layer of the target lens. If the user clicks the green icon button on the preset dipping control interface, the lens hardening equipment will be triggered to enter the uniform deceleration dipping mode. Therefore, since the dipping modes used under different working conditions may be different, in order to improve the diversity of dipping methods and reduce the error of dipping mode caused by user operation errors, the lens hardening equipment can provide status prompt information for the user to determine whether to change the control status of the target lens. The status prompt information is used to indicate the information of the control status of the target lens, which can be displayed in a pop-up window on the preset dipping control interface.

[0072] As an example, steps E10 to E40 include: if the control state of the target lens is detected to be a uniform speed control state, then displaying a status prompt message on the preset immersion control interface; detecting whether a status change command input by the user for the status prompt message is received, and determining whether the control state of the target lens has changed; if the status change command is received, then determining that the control state of the target lens has changed, and executing the steps: determining the set acceleration of the target lens during the set total lifting time based on the set start position and set end position input by the user on the preset immersion control interface; if the status change command is not received, then determining that the control state of the target lens has not changed, then determining the fixed immersion speed corresponding to the target lens based on the set start position, the set end position, and the set total lifting time, and after the target lens is immersed, performing immersion control on the target lens according to the fixed immersion speed so that the target lens moves to the lifting end position after the total lifting time.

[0073] In one feasible approach, if the control state of the target lens is detected to be uniform speed control, the following step is directly executed: determining the set acceleration of the target lens during the set total lifting time based on the set start position and set end position input by the user in the preset dip coating control interface.

[0074] This application provides a lens immersion coating control method, namely, after the target lens is immersed, the total lifting time of the target lens is obtained, wherein the total lifting time is the total time for lifting the target lens from the lifting start position immersed in the lens strengthening liquid to the lifting end position detached from the lens strengthening liquid; the lifting acceleration of the target lens during the total lifting time is determined, wherein the direction of the lifting acceleration is opposite to the movement direction of the target lens; and the immersion coating is controlled according to the lifting acceleration so that the target lens moves to the lifting end position after the total lifting time.

[0075] In this embodiment of the application, when the target lens is dip-coated using a dip-coating process, the target lens is first controlled to be immersed in a conventional manner. After the target lens is immersed, the total time for lifting the target lens from being immersed in the lens strengthening liquid to being removed from the lens strengthening liquid is obtained. Then, the lifting acceleration of the target lens during the total lifting time is determined. That is, the speed of the target lens during the lifting process is changed by the lifting acceleration. Finally, the target lens is lifted to the lifting termination position by the lifting acceleration. Since the direction of the lifting acceleration is opposite to the direction of movement of the target lens, the total lifting time for lifting the target lens from the lifting start position to the lifting termination position under the action of the lifting acceleration will be greater than the total time for lifting at the set speed. In other words, the purpose of slowing down the lifting process by lifting acceleration opposite to the direction of movement of the target lens is achieved.

[0076] Because the total lifting time will be extended after the speed is reduced, the target lens will have more time to drain the strengthening liquid at the bottom of the lens from the lens surface through the combined action of liquid surface tension and gravity. In other words, it reduces to some extent the large difference between the film thickness at the bottom and top of the lens caused by the accumulation of strengthening liquid at the bottom of the lens.

[0077] Based on this, this application controls the lifting process by slowing down the lifting acceleration after the target lens is fully immersed, thereby extending the total lifting time of the target lens. This allows the uncured strengthening liquid on the target lens surface to detach from the target lens more time, resulting in a smaller difference in film thickness between the top and bottom of the target lens. This is achieved by controlling the lens to be lifted from the strengthening liquid at a set speed, rather than controlling the lens to be lifted from the strengthening liquid at a predetermined speed. Therefore, this overcomes the technical defect that, because the strengthening liquid on the lens surface is not cured during the lifting process, it flows and accumulates from the top to the bottom of the lens under the combined action of gravity and surface tension, leading to a large difference in film thickness between the top and bottom of the lens. This, in turn, makes the lens susceptible to defects caused by film thickness differences after the immersion coating process. Therefore, this application improves the film thickness uniformity of the lens after the immersion coating process.

[0078] Example 2

[0079] Furthermore, referring to Figure 4 In another embodiment of this application, content that is the same as or similar to that in Embodiment 1 described above can be referred to the above description and will not be repeated hereafter. Based on this, after the step of controlling the dip-coating of the target lens according to the lifting acceleration, the lens dip-coating control method further includes:

[0080] Step F10: Detect whether the dwell time of the target lens at the lifting termination position is greater than a preset dwell time threshold.

[0081] Step F20: If yes, then obtain the identity information of the target lens;

[0082] Step F30: Update the lens circulation anomaly table based on the identity information.

[0083] In this embodiment, it should be noted that after the lifting is completed, the target lens that has completed the dip coating will be gripped by the robotic arm module and enter a high-temperature pre-curing oven for curing. Finally, the cured target lens will undergo appearance inspection and testing of properties such as film thickness, abrasion resistance, and scratch resistance. However, due to the possibility of malfunction of the robotic arm module, the target lens that has completed the dip coating may be exposed to air for a long time. The long-term exposure of the target lens will cause the uncured strengthening liquid on the target lens to continue to accumulate at the bottom of the lens, resulting in a technical defect of poor film thickness uniformity. Therefore, target lenses that have completed the dip coating and have been exposed to air for too long need to be specially marked to indicate that there is an abnormality in the circulation process. The lens circulation abnormality table is used to store the identity information of the lens with abnormal circulation. The identity information can be the production serial number or batch number, etc.

[0084] As an example, steps F10 to F30 include: detecting whether the dwell time of the target lens at the lifting termination position is greater than a preset dwell time threshold; if the dwell time of the target lens at the lifting termination position is detected to be greater than the preset dwell time threshold, then obtaining the identity information of the target lens; and storing the identity information in a lens circulation anomaly table.

[0085] This application provides a method for updating the identity of a target lens. Specifically, it detects whether the dwell time of the target lens at the lifting termination position exceeds a preset dwell time threshold. If so, it obtains the identity information of the target lens and updates the lens transfer anomaly table based on the identity information. After completing the dip-coating process of the target lens, this application detects whether the dwell time of the target lens at the lifting termination position awaiting transfer to the next process exceeds a preset dwell time threshold. Target lenses with excessively long dwell times are marked as having transfer anomalies to distinguish lenses in different transfer states, thereby laying the foundation for reducing lens production costs.

[0086] Example 3

[0087] This application also provides a lens coating control device, see reference. Figure 5 The lens coating control device includes:

[0088] The acquisition module 101 is used to acquire the total lifting time of the target lens after the target lens is immersed in the lens strengthening liquid, wherein the total lifting time is the total time to lift the target lens from the lifting start position immersed in the lens strengthening liquid to the lifting end position detached from the lens strengthening liquid.

[0089] The determining module 102 is used to determine the lifting acceleration of the target lens during the total lifting time, wherein the direction of the lifting acceleration is opposite to the direction of movement of the target lens;

[0090] The control module 103 is used to control the dip coating of the target lens according to the lifting acceleration, so that the target lens moves to the lifting termination position after the total lifting time.

[0091] Optionally, the determining module 102 is further configured to:

[0092] Check if the set acceleration corresponding to the target lens exists in the set lifting acceleration table;

[0093] If so, the set acceleration is taken as the lifting acceleration of the target lens during the total lifting time;

[0094] If not, then the lifting acceleration of the target lens within the total lifting time is determined based on the lifting start position, the lifting end position, and the total lifting time.

[0095] Optionally, the determining module 102 is further configured to:

[0096] The first velocity of the target lens at the lifting start position and the second velocity at the lifting end position are obtained;

[0097] Based on the first speed and the second speed, the lifting acceleration of the target lens during the total lifting time is determined.

[0098] Optionally, the determining module 102 is further configured to:

[0099] Based on at least one acceleration change position of the target lens from the lifting start position to the lifting end position, the total lifting time is divided into at least one lifting sub-time.

[0100] Based on the first velocity, the second velocity, and the third velocity at the acceleration change position, the lifting acceleration of the target lens during each lifting time interval is determined, wherein the magnitude of each lifting acceleration is inversely proportional to the height of each acceleration change position.

[0101] Optionally, the lens dipping control device is further used for:

[0102] Based on the set start position and set end position input by the user in the preset dip coating control interface, the set acceleration of the target lens during the set total lifting time is determined.

[0103] The set acceleration is saved in the set lifting acceleration table, and the target lens is controlled to descend into the lens strengthening liquid tank at the default speed for immersion until the target lens is fully immersed.

[0104] Optionally, the lens dipping control device is further used for:

[0105] If the target lens is detected to be in a constant speed control state, a status prompt message will be displayed on the preset dip-coating control interface.

[0106] Based on the status prompt information, detect whether the control status of the target lens has changed;

[0107] If so, then the following steps are performed: Based on the set start position and set end position input by the user in the preset dip coating control interface, determine the set acceleration of the target lens during the set total lifting time;

[0108] If not, then based on the set start position, the set end position, and the set total lifting time, a fixed dipping speed corresponding to the target lens is determined, and after the target lens is wetted, the dipping speed is controlled to move the target lens to the lifting end position after the total lifting time.

[0109] Optionally, the lens dipping control device is further used for:

[0110] Detect whether the dwell time of the target lens at the lifting termination position is greater than a preset dwell time threshold;

[0111] If so, then obtain the identity information of the target lens;

[0112] Update the lens circulation anomaly table based on the identity information.

[0113] The lens dip-coating control device provided by this invention, employing the lens dip-coating control method in the above embodiments, solves the technical problem of poor film thickness uniformity after lens dip-coating. Compared with the prior art, the beneficial effects of the lens dip-coating control device provided by this invention are the same as those of the lens dip-coating control method provided in the above embodiments, and other technical features in this lens dip-coating control device are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0114] Example 4

[0115] This invention provides an electronic device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, which are executed by the at least one processor to enable the at least one processor to perform the lens dipping control method described in Embodiment 1 above.

[0116] The following is for reference. Figure 6 The diagram illustrates a structural schematic of an electronic device suitable for implementing embodiments of the present disclosure. The electronic devices in the embodiments of the present disclosure may include, but are not limited to, mobile terminals such as mobile phones, laptops, digital broadcast receivers, PDAs (personal digital assistants), PADs (tablet computers), PMPs (portable multimedia players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 6 The electronic device shown is merely an example and should not be construed as limiting the functionality and scope of the embodiments disclosed herein.

[0117] like Figure 6 As shown, the electronic device may include a processing unit 1001 (e.g., a central processing unit, a graphics processor, etc.) that can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 1002 or a program loaded from a storage device 1003 into a random access memory (RAM) 1004. The RAM 1004 also stores various programs and data required for the operation of the electronic device. The processing unit 1001, ROM 1002, and RAM 1004 are interconnected via a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus.

[0118] Typically, the following systems can be connected to I / O interface 1006: input devices 1007 including, for example, touchscreens, touchpads, keyboards, mice, image sensors, microphones, accelerometers, gyroscopes, etc.; output devices 1008 including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; storage devices 1003 including, for example, magnetic tapes, hard disks, etc.; and communication devices 1009. The communication devices allow electronic devices to communicate wirelessly or wiredly with other devices to exchange data. Although electronic devices with various systems are shown in the figures, it should be understood that it is not required to implement or possess all the systems shown. More or fewer systems may be implemented alternatively.

[0119] In particular, according to embodiments of this disclosure, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of this disclosure include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via communication device 1009, or installed from storage device 1003, or installed from ROM 1002. When the computer program is executed by processing device 1001, it performs the functions defined in the methods of embodiments of this disclosure.

[0120] The electronic device provided by this invention employs the lens dip-coating control method described in the above embodiments, solving the technical problem of poor film thickness uniformity after lens dip-coating. Compared with the prior art, the beneficial effects of the electronic device provided by the embodiments of this invention are the same as those of the lens dip-coating control method described in the above embodiments, and other technical features of this electronic device are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0121] It should be understood that various parts of this disclosure can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0122] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

[0123] Example 5

[0124] This embodiment provides a computer-readable storage medium having computer-readable program instructions stored thereon, which are used to execute the lens immersion coating control method in the above embodiment.

[0125] The computer-readable storage medium provided in this embodiment of the invention may be, for example, a USB flash drive, but is not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (radio frequency), etc., or any suitable combination thereof.

[0126] The aforementioned computer-readable storage medium may be included in an electronic device or may exist independently without being assembled into an electronic device.

[0127] The aforementioned computer-readable storage medium carries one or more programs that, when executed by an electronic device, cause the electronic device to: after the target lens is immersed, acquire the total lifting time of the target lens, wherein the total lifting time is the total time for lifting the target lens from the lifting start position immersed in the lens strengthening liquid to the lifting end position detached from the lens strengthening liquid; determine the lifting acceleration of the target lens during the total lifting time, wherein the direction of the lifting acceleration is opposite to the direction of movement of the target lens; and control the immersion coating of the target lens according to the lifting acceleration, so that the target lens moves to the lifting end position after the total lifting time.

[0128] Computer program code for performing the operations of this disclosure can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0129] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of the present invention. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0130] The modules described in the embodiments of this disclosure can be implemented in software or hardware. The names of the modules do not necessarily limit the functionality of the unit itself.

[0131] The computer-readable storage medium provided by this invention stores computer-readable program instructions for executing the above-described lens dip-coating control method, thus solving the technical problem of poor film thickness uniformity after lens dip-coating. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in the embodiments of this invention are the same as the beneficial effects of the lens dip-coating control method provided in the above embodiments, and will not be repeated here.

[0132] Example 6

[0133] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the lens dipping control method described above.

[0134] The computer program product provided in this application solves the technical problem of poor film thickness uniformity after lens dip coating process. Compared with the prior art, the beneficial effects of the computer program product provided in the embodiments of this invention are the same as the beneficial effects of the lens dip coating control method provided in the above embodiments, and will not be repeated here.

[0135] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent scope of this application.

Claims

1. A lens dip coating control method, characterized by, The lens coating control method includes: After the target lens is immersed, the total lifting time of the target lens is obtained, wherein the total lifting time is the total time to lift the target lens from the lifting start position immersed in the lens strengthening liquid to the lifting end position detached from the lens strengthening liquid. Determine the lifting acceleration of the target lens during the total lifting time, wherein the direction of the lifting acceleration is opposite to the direction of movement of the target lens. The step of determining the lifting acceleration of the target lens during the total lifting time includes: Check if the set acceleration corresponding to the target lens exists in the set lifting acceleration table; If so, the set acceleration is taken as the lifting acceleration of the target lens during the total lifting time; If not, then the lifting acceleration of the target lens during the total lifting time is determined based on the lifting start position, the lifting end position, and the total lifting time. Based on at least one acceleration change position of the target lens from the lifting start position to the lifting end position, the total lifting time is divided into at least one lifting sub-time. Based on the first velocity of the target lens at the lifting start position, the second velocity at the lifting end position, and the third velocity at the acceleration change position, the lifting acceleration of the target lens in each of the lifting sub-times is determined, wherein the magnitude of each lifting acceleration is inversely proportional to the height of each acceleration change position; The target lens is dipped and coated according to the lifting acceleration so that the target lens moves to the lifting termination position after the total lifting time.

2. The lens dip coating control method of claim 1, wherein, The step of determining the lifting acceleration of the target lens within the total lifting time based on the lifting start position, the lifting end position, and the total lifting time includes: The first velocity of the target lens at the lifting start position and the second velocity at the lifting end position are obtained; Based on the first speed and the second speed, the lifting acceleration of the target lens during the total lifting time is determined.

3. The lens dip coating control method of claim 1, wherein, Prior to the step of using the set acceleration as the lifting acceleration of the target lens during the total lifting time, the lens dipping control method further includes: Based on the set start position and set end position input by the user in the preset dip coating control interface, the set acceleration of the target lens during the set total lifting time is determined. The set acceleration is saved in the set lifting acceleration table, and the target lens is controlled to descend into the lens strengthening liquid tank at the default speed for immersion until the target lens is fully immersed.

4. The lens dip coating control method of claim 3, wherein, Before the step of determining the set acceleration of the target lens during the set total lifting time based on the set position parameters and set speed parameters input by the user in the preset dip coating control interface, the lens dip coating control method further includes: If the target lens is detected to be in a constant speed control state, a status prompt message will be displayed on the preset dip-coating control interface. Based on the status prompt information, detect whether the control status of the target lens has changed; If so, then the following steps are performed: Based on the set start position and set end position input by the user in the preset dip coating control interface, determine the set acceleration of the target lens during the set total lifting time; If not, then based on the set start position, the set end position, and the set total lifting time, a fixed dipping speed corresponding to the target lens is determined, and after the target lens is wetted, the dipping speed is controlled to move the target lens to the lifting end position after the total lifting time.

5. The lens dip coating control method of claim 1, wherein, After the step of controlling the dip coating of the target lens according to the lifting acceleration, the lens dip coating control method further includes: Detect whether the dwell time of the target lens at the lifting termination position is greater than a preset dwell time threshold; If so, then obtain the identity information of the target lens; Update the lens circulation anomaly table based on the identity information.

6. A lens dip coating control apparatus, characterized by, The lens coating control device includes: The acquisition module is used to acquire the total lifting time of the target lens after the target lens is immersed in the lens strengthening liquid, wherein the total lifting time is the total time to lift the target lens from the lifting start position immersed in the lens strengthening liquid to the lifting end position detached from the lens strengthening liquid. A determining module is used to determine the lifting acceleration of the target lens during the total lifting time, wherein the direction of the lifting acceleration is opposite to the movement direction of the target lens. Specifically, the determining module is used to detect whether a set acceleration corresponding to the target lens exists in a set lifting acceleration table; if so, the set acceleration is used as the lifting acceleration of the target lens during the total lifting time; if not, the lifting acceleration of the target lens during the total lifting time is determined based on the lifting start position, the lifting end position, and the total lifting time; the total lifting time is divided into at least one lifting sub-time based on at least one acceleration change position of the target lens from the lifting start position to the lifting end position; the lifting acceleration of the target lens in each of the lifting sub-times is determined based on the first velocity of the target lens at the lifting start position, the second velocity at the lifting end position, and the third velocity at the acceleration change position, wherein the magnitude of each lifting acceleration is inversely proportional to the height of each acceleration change position. The control module is used to control the dip coating of the target lens according to the lifting acceleration, so that the target lens moves to the lifting termination position after the total lifting time.

7. An electronic device, comprising: The electronic device includes: At least one processor; A memory that is communicatively connected to the at least one processor; The memory stores instructions that can be executed by the at least one processor to enable the at least one processor to perform the steps of the lens immersion coating control method according to any one of claims 1 to 5.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a program for implementing a lens dip-coating control method, the program for implementing the lens dip-coating control method being executed by a processor to implement the steps of the lens dip-coating control method as described in any one of claims 1 to 5.

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