Mechanical operating system based on progressive multifocal ophthalmic lenses to improve uncorrected vision

Abstract

The application discloses a mechanical operation system based on a progressive multifocal ophthalmic lens for improving naked eye vision, and relates to the technical field of vision training assistance. The system comprises a frame, a front lens, a rear lens, left and right linear reciprocating motion mechanisms, a front and rear linear reciprocating motion mechanism and a main control module. The front lens and the rear lens are respectively provided with the progressive multifocal ophthalmic lens, and the arrangement relationship, the connection relationship and the working mode of the front lens and the rear lens can dynamically adjust the rear lens to move forward and backward and left and right, increase the zoom range that can be adjusted by the glasses, and through the continuous zoom of the glasses, the lens will continuously appear diopter adjustment and change in the process of repeatedly overlapping the clear image and the defocused image, so as to increase the elasticity of the lens, enhance the accommodation ability of the ciliary muscle, and improve the ability of the brain to process visual information, thereby achieving the purpose of improving the naked eye vision without changing the degree, and facilitating the actual application and promotion.

Description

Technical Field

[0001] This invention belongs to the field of vision training assistance technology, specifically relating to a mechanical operating system based on progressive multifocal lenses to improve uncorrected visual acuity. Background Technology

[0002] From a physiological perspective, the eye relies on the ciliary muscle to adjust the refractive power of the lens to reflect images. Ciliary muscle fatigue weakens or disables the lens's accommodative function, leading to myopia or hyperopia. With the widespread use of electronic products such as mobile phones and computers in modern life, the number of people suffering from vision problems such as myopia, presbyopia, or amblyopia is increasing, especially among children and adolescents; for example, myopia among students is showing a high incidence and younger age of onset, seriously affecting children's physical and mental health.

[0003] Currently, existing vision correction or training aids generally employ methods such as wearing glasses, surgery, and visual function therapy for vision recovery. However, these methods have certain limitations: (1) Existing glasses are simply optical devices made to correct vision or protect the eyes, lacking health care effects and having no positive effect on vision recovery; (2) Although surgery can fundamentally improve vision, it is a new technology that uses laser surgery to treat myopia. Many potential risks have not yet been revealed, and it is still uncertain whether it will affect vision in the future. Moreover, surgical treatment also carries the risk of surgical failure or irreversible vision loss in the patient, thus posing certain safety hazards; (3) Visual function therapy (such as massage) is a relaxation training for the extraocular muscles, which is effective for pseudomyopia, but not for true myopia, so its application is also limited.

[0004] Progressive multifocal lenses (also known as progressive lenses) have a continuously changing focal length, enabling uninterrupted and clear imaging at various distances from far to near. This overcomes the shortcomings of bifocals, such as discontinuous or fragmented visual fields during focal length transitions, unclear intermediate-distance vision, and distinct boundaries on the lens. Therefore, how to develop a new vision training aid based on progressive multifocal lenses that can effectively improve uncorrected visual acuity is a topic that urgently needs to be studied by those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide a mechanical operating system based on progressive multifocal lenses to improve uncorrected visual acuity, thereby addressing the limitations of existing vision correction or training aids for vision recovery.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] In a first aspect, a mechanical operating system for improving uncorrected visual acuity based on progressive multifocal lenses is provided, including a frame, a front lens, a rear lens, a left-right linear reciprocating motion mechanism, a front-back linear reciprocating motion mechanism, and a main control module, wherein the front lens and the rear lens are respectively progressive multifocal lenses;

[0008] The front lens is fixedly mounted on the frame, the left and right linear reciprocating motion mechanism is mounted on the frame, the front and rear linear reciprocating motion mechanism is mounted on the moving part of the left and right linear reciprocating motion mechanism, the rear lens is fixedly mounted on the moving part of the front and rear linear reciprocating motion mechanism and located behind the front lens, and the main control module is also fixedly mounted on the frame.

[0009] The main control module is electrically connected to the controlled ends of the left and right linear reciprocating motion mechanisms and the front and rear linear reciprocating motion mechanisms, respectively, and is used to execute the following steps S1 to S2:

[0010] S1. Control the moving part of the left and right linear reciprocating motion mechanism to perform left and right linear reciprocating motion, so as to drive the front and rear linear reciprocating motion mechanism and the rear lens to also perform left and right linear reciprocating motion, change the focal overlap position of the rear lens and the front lens, and achieve the purpose of zooming to exercise the lens and ciliary muscle, and then execute step S2.

[0011] S2. After a preset time, control the moving part of the front-to-back linear reciprocating motion mechanism to perform front-to-back linear reciprocating motion, so as to drive the rear lens to also perform front-to-back linear reciprocating motion, change the focal length formed by the combination of the rear lens and the front lens, and achieve the purpose of adjusting the zoom range of the glasses, and then return to the execution step S1.

[0012] Based on the above-mentioned invention, a new vision training aid based on progressive multifocal lenses to improve uncorrected visual acuity is provided. This includes a frame, a front lens, a rear lens, a left-right linear reciprocating motion mechanism, a front-back linear reciprocating motion mechanism, and a main control module. The front and rear lenses are progressive multifocal lenses. Through their arrangement, connection, and operation, the rear lens can be dynamically adjusted to move forward, backward, left, and right, increasing the zoom range of the glasses. Through continuous zooming, the lens undergoes constant refractive adjustment and change as clear and defocused images repeatedly overlap, thereby increasing the lens's elasticity, enhancing the ciliary muscle's accommodative ability, and improving the brain's ability to process visual information. This achieves the goal of improving uncorrected visual acuity without changing the prescription, facilitating practical application and promotion.

[0013] In one possible design, the eyeglass frame is provided with a cover, and the left-right linear reciprocating motion mechanism includes a mounting frame, a moving stage, a main screw, and a main motor. The mounting frame is disposed between the eyeglass frame and the cover and is fixedly connected to the eyeglass frame. The moving stage is disposed between the left and right mounting plates of the mounting frame and serves as the moving part of the left-right linear reciprocating motion mechanism. The left and right ends of the main screw rotatably pass through the left and right mounting plates, respectively. The main motor is fixedly disposed on the outer wall of the left or right mounting plate, and the control end of the main motor serves as the controlled end of the left-right linear reciprocating motion mechanism.

[0014] The movable stage is threadedly connected to the main screw, and the output shaft of the main motor is connected to one end of the main screw;

[0015] The main motor is used to drive the main screw to rotate clockwise or counterclockwise under the control of the main control module, so that the moving platform can make left and right linear reciprocating motion under the meshing force of the main screw, thereby driving the front and rear linear reciprocating motion mechanism and the rear lens to also make left and right linear reciprocating motion.

[0016] In one possible design, the front-to-back linear reciprocating motion mechanism includes a connector, a driving gear, a driven gear, a screw sleeve, a secondary screw, and a secondary motor. The connector is movably disposed on one side of the moving platform and serves as the moving part of the front-to-back linear reciprocating motion mechanism. The driving gear and the driven gear are respectively disposed inside the moving platform. The secondary motor is fixedly disposed on the outer surface of the moving platform, and the control end of the secondary motor serves as the controlled end of the front-to-back linear reciprocating motion mechanism.

[0017] The connecting piece is fixedly connected to the auxiliary screw, the auxiliary screw is threadedly connected to the screw sleeve, the screw sleeve shaft is connected to the driven gear, the driven gear meshes with the driving gear, and the output end shaft of the auxiliary motor is connected to the driving gear;

[0018] The auxiliary motor is used to drive the drive gear, the driven gear, and the screw sleeve to rotate clockwise or counterclockwise in sequence under the control of the main control module, so that the auxiliary screw can make a back-and-forth linear reciprocating motion under the meshing force of the screw sleeve, thereby driving the connector and the rear lens to also make a back-and-forth linear reciprocating motion.

[0019] In one possible design, a second guide rod is fixedly inserted through the connector, and the front and rear sides of the movable platform are symmetrically provided with guide grooves with a non-circular cross-section, wherein the two ends of the second guide rod are respectively inserted into the front and rear guide grooves in a corresponding manner.

[0020] In one possible design, a connecting plate is fixed inside the guide groove, wherein the ends of the connecting plate and the second guide rod are respectively connected to the two ends of the spring.

[0021] In one possible design, the left and right linear reciprocating motion mechanism further includes a first guide rod, and insertion holes are respectively provided on the left and right mounting plates. The middle part of the first guide rod slides through the moving platform, and the left and right ends of the first guide rod are respectively fixedly inserted into the insertion holes located on the left and right sides.

[0022] In one possible design, the frame has temples symmetrically arranged at both ends, and the temples contain a power module for supplying power to the left-right linear reciprocating motion mechanism, the front-back linear reciprocating motion mechanism, and the main control module.

[0023] In one possible design, when there are multiple preset positions in the forward and backward linear motion direction, controlling the moving part of the forward and backward linear reciprocating motion mechanism to perform forward and backward linear reciprocating motion includes:

[0024] If the position reached by the moving part of the front-to-back linear reciprocating motion mechanism in the front-to-back linear motion direction is not included in the foremost position among the plurality of preset positions, then the moving part of the front-to-back linear reciprocating motion mechanism is controlled to move forward from the current position in the front-to-back linear motion direction to the next preset setting in the plurality of preset positions that is in front of the current position, until the foremost position is reached.

[0025] If the position reached by the moving part of the front-rear linear reciprocating motion mechanism in the front-rear linear motion direction includes the foremost position among the plurality of preset positions, then the moving part of the front-rear linear reciprocating motion mechanism is controlled to move backward from the current position in the front-rear linear motion direction to the next preset position after the current position among the plurality of preset positions, until the rearmost position among the plurality of preset positions is reached.

[0026] In one possible design, the plurality of preset positions include a rearmost position, a frontmost position, and intermediate positions between the rearmost and frontmost positions. The rearmost position is the position of the rear lens that provides optimal vision for the user's eyes after the user wears the frame. The frontmost position is the position of the rear lens that provides blurred vision for the user's eyes after the user wears the frame. The number of intermediate positions is K, where K represents a positive integer. Each intermediate position of the rear lens improves the user's eye's refractive power relative to the position before forward or backward movement after the user wears the frame. Position of refractive power.

[0027] In one possible design, the movement time of the moving part of the back-and-forth linear reciprocating motion mechanism from the current position to the next preset position in front of the current position is negatively correlated with the distance from the current position to the rearmost position in the back-and-forth linear motion direction.

[0028] And / or, the movement time of the moving part of the front-back linear reciprocating motion mechanism from the current position to the next preset position in the plurality of preset positions and located behind the current position is negatively correlated with the distance from the current position to the rearmost position in the front-back linear motion direction.

[0029] The beneficial effects of the above scheme are:

[0030] (1) This invention creatively provides a new vision training aid based on progressive multifocal ophthalmic lenses to improve uncorrected visual acuity, which includes a frame, a front lens, a rear lens, a left-right linear reciprocating motion mechanism, a front-back linear reciprocating motion mechanism, and a main control module. The front lens and the rear lens are progressive multifocal ophthalmic lenses. Through their arrangement, connection, and working method, the rear lens can be dynamically adjusted to move back and forth and left and right, increasing the zoom range that the glasses can adjust. Through the continuous zooming of the glasses, the lens will continuously undergo refractive power adjustment and change during the repeated overlap of clear and defocused images, thereby increasing the elasticity of the lens, enhancing the ciliary muscle's adjustment ability, and improving the brain's ability to process visual information, thereby achieving the goal of improving uncorrected visual acuity without changing the diopter.

[0031] (2) By making the movement process complete at different times during each back-and-forth linear movement of the rear lens, it can complete a process and function similar to the filtering and contrast enhancement of a camera under stepless speed regulation, thereby enabling the wearer to see effectively within different depths of focus. The brain's highest error tolerance can reach about 4D on average, which improves the brain's reaction speed in integrating the optic nerve and increases the error tolerance. In actual naked-eye vision, within a certain depth of focus where objects can be clearly seen, objects can be seen effectively and clearly. This provides strong technical support for the wearer's vision recovery and is convenient for practical application and promotion. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the mechanical operating system for improving uncorrected visual acuity based on progressive multifocal ophthalmic lenses, as provided in an embodiment of this application.

[0034] Figure 2 This is an exploded structural diagram of the left-right linear reciprocating motion mechanism provided in the embodiments of this application.

[0035] In the above figures: 41-mounting bracket; 411-left side mounting plate; 412-right side mounting plate; 413-insertion hole; 42-moving stage; 421-connecting sleeve; 43-main screw; 44-main motor; 45-first guide rod; 46-buffer sleeve; 47-drive threaded sleeve. Detailed Implementation

[0036] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of the present invention. For those skilled in the art, other embodiments can be obtained based on these embodiments without creative effort. It should be noted that the description of these embodiments is for the purpose of helping to understand the present invention, but does not constitute a limitation of the present invention.

[0037] It should be understood that although the terms "first" and "second", etc., may be used herein to describe various objects, these objects should not be limited by these terms. These terms are only used to distinguish one object from another. For example, the first object may be referred to as the second object, and similarly, the second object may be referred to as the first object, without departing from the scope of the exemplary embodiments of the invention.

[0038] It should be understood that the term "and / or" that may appear in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, B exists alone, or A and B exist simultaneously. Another example is A, B and / or C, which can mean that any one of A, B, and C or any combination thereof exists. The term " / and" that may appear in this document describes another relationship between related objects, indicating that two relationships can exist. For example, A / and B can mean: A exists alone or A and B exist simultaneously. In addition, the character " / " that may appear in this document generally indicates that the related objects before and after it are in an "or" relationship.

[0039] Example

[0040] like Figure 1As shown, the mechanical operating system provided in this embodiment, based on progressive multifocal lenses to improve uncorrected visual acuity, includes, but is not limited to, a frame, a front lens, a rear lens, a left-right linear reciprocating motion mechanism, a front-back linear reciprocating motion mechanism, and a main control module. The front lens and the rear lens are both progressive multifocal lenses. The front lens is fixedly mounted on the frame. The left-right linear reciprocating motion mechanism is mounted on the frame. The front-back linear reciprocating motion mechanism is mounted on the moving part of the left-right linear reciprocating motion mechanism. The rear lens is fixedly mounted on the moving part of the front-back linear reciprocating motion mechanism and located behind the front lens. The main control module is also fixedly mounted on the frame. The frame supports the front lens, the rear lens, the left-right linear reciprocating motion mechanism, the front-back linear reciprocating motion mechanism, and the main control module, and can be conventionally modified based on existing frame structures. The front lens can specifically be divided into a left front lens for the left eye and a right front lens for the right eye, which can be conventionally fixedly mounted on the frame using existing structures. The rear lens can also be specifically divided into a left rear lens for the left eye and a right rear lens for the right eye. These can be conventionally fixed to the moving part of the front-to-back linear reciprocating motion mechanism using existing structures. For the aforementioned left and right rear lenses, corresponding left-to-right linear reciprocating motion mechanisms and front-to-back linear reciprocating motion mechanisms need to be configured respectively. Furthermore, the main control module can also be conventionally fixed to the frame using existing structures. The progressive multifocal eye lens can be designed or manufactured based on, but is not limited to, the existing patent technology "CN111679450A - A design method, preparation method, and lens for a progressive multifocal eye lens".

[0041] The main control module is electrically connected to the controlled ends of the left and right linear reciprocating motion mechanisms and the front and rear linear reciprocating motion mechanisms, respectively, and is used to execute the following steps S1 to S2.

[0042] S1. Control the moving part of the left and right linear reciprocating motion mechanism to perform left and right linear reciprocating motion, so as to drive the front and rear linear reciprocating motion mechanism and the rear lens to also perform left and right linear reciprocating motion, change the focal overlap position of the rear lens and the front lens, and achieve the purpose of zooming to exercise the lens and ciliary muscle, and then execute step S2.

[0043] In step S1, since the rear lens is constantly moving left and right relative to the front lens, and since the front and rear lenses are progressive multifocal lenses, the lens power obtained by combining the two lenses is constantly changing during the movement. This causes the wearer (i.e., the user) to see objects in the outside world in a cyclical process of gradually becoming clear, then gradually becoming blurry, and finally gradually becoming clear again. This is equivalent to artificially training the wearer's ciliary muscle and lens to contract and relax through eye tracking, thereby relieving eye fatigue and enhancing the eye's accommodation ability, thus partially restoring and enhancing the wearer's vision.

[0044] S2. After a preset time, control the moving part of the front-to-back linear reciprocating motion mechanism to perform front-to-back linear reciprocating motion, so as to drive the rear lens to also perform front-to-back linear reciprocating motion, change the focal length formed by the combination of the rear lens and the front lens, and achieve the purpose of adjusting the zoom range of the glasses, and then return to the execution step S1.

[0045] In step S2, since the wearer's vision will recover to some extent after a period of time and based on the training in step S1 (at this time, the zoom training effect achieved by simply moving the rear lens left and right will be greatly reduced, so the zoom range of the glasses needs to be readjusted), the preset duration can be obtained and preset based on historical training experience, for example, 5 minutes.

[0046] In step S2, considering that the preset duration may vary from person to person, in order to provide a personalized optimal exercise duration plan for the wearer, preferably, before step S2, there are also steps S201 to S203.

[0047] S201. Obtain the wearer's pre-training refraction data, wherein the pre-training refraction data includes, but is not limited to, spherical power, cylindrical power, astigmatism axis, equivalent spherical power, and pupillary distance.

[0048] In step S201, the pre-exercise refraction data can be routinely obtained by the wearer before exercise using existing refraction equipment.

[0049] S202. For each of the multiple training duration schemes, import the corresponding training duration data and the pre-training refraction data into the uncorrected visual acuity improvement effect prediction model obtained by pre-training based on artificial intelligence algorithm, and output the corresponding uncorrected visual acuity improvement effect prediction result.

[0050] In step S202, the exercise duration scheme is used to record the exercise duration preset for step S1 (i.e., the preset duration). When there are multiple preset positions in the forward and backward linear movement direction, the exercise duration scheme may specifically include multiple preset exercise durations corresponding one-to-one with the multiple preset positions. The multiple exercise duration schemes can be designed manually or generated randomly. The artificial intelligence algorithm is a core algorithm of artificial intelligence that specifically studies how computers can simulate or realize human learning behavior to acquire new knowledge or skills, reorganize existing knowledge structures to continuously improve their performance, and is the fundamental way to make computers intelligent. Specifically, the artificial intelligence algorithm preferably adopts a linear regression algorithm based on the Python sklearn library in order to quickly and accurately find patterns in the data. In this way, based on a certain amount of sample data (i.e., historical pre-training refraction data and historical training duration data) and label data (i.e., the actual historical uncorrected visual acuity improvement results corresponding to the historical pre-training refraction data and historical training duration data), the uncorrected visual acuity improvement prediction model can be trained through a conventional calibration and verification modeling process (specifically including the model calibration process and verification process, that is, first comparing the model simulation results with the measured data, and then adjusting the model parameters according to the comparison results to make the simulation results match the actual results). Preferably, in the calibration and verification modeling process of the uncorrected visual acuity improvement prediction model, a tree-based Bayesian optimization algorithm is used to fine-tune the model parameters. In addition, the artificial intelligence algorithm can also be, but is not limited to, artificial intelligence algorithms based on support vector machines, stochastic gradient descent, multivariate linear regression, multilayer perceptron, decision trees, backpropagation neural networks, or radial basis function networks.

[0051] S203. Select the exercise duration plan with the best prediction result of uncorrected visual acuity improvement from the multiple exercise duration plans as the optimal exercise duration plan.

[0052] In step S203, the exercise duration of the optimal exercise duration plan can be used as the preset duration in step S2. Alternatively, existing optimization algorithms (such as the Grey Wolf algorithm) can be used in conjunction with the uncorrected visual acuity improvement prediction model to optimize the exercise duration plan, thereby quickly obtaining the optimal exercise duration plan.

[0053] Considering that the human body needs to meet the following three necessary conditions to see objects: (A) a normal refractive system, which means that the physiological function of the eyeball is good; (B) a normal conduction system, which means that the visual pathway transmission channel from the retina to the brain is normal, and there is no image loss; and (C) a normal central nervous system, which means that the brain's ability to process the transmitted visual information is normal. The purpose of dual-lens dynamic zoom based on the aforementioned steps S1 to S2 is to improve the brain's ability to process the transmitted visual information (everyone has this ability, but some people have a relatively weaker ability due to lack of training, while others can improve this ability through training), thereby achieving the goal of improving uncorrected visual acuity without changing the prescription.

[0054] Based on the detailed structure and working principle description of the aforementioned mechanical operating system, a new vision training aid based on progressive multifocal lenses to improve uncorrected visual acuity is provided. This includes a frame, a front lens, a rear lens, a left-right linear reciprocating motion mechanism, a front-back linear reciprocating motion mechanism, and a main control module. The front and rear lenses are progressive multifocal lenses, and through their arrangement, connection, and operation, the rear lens can be dynamically adjusted to move forward, backward, left, and right, increasing the zoom range of the glasses. Through continuous zooming, the lens undergoes constant refractive adjustment and change as clear and defocused images repeatedly overlap, thereby increasing the lens's elasticity, enhancing the ciliary muscle's accommodative ability, and improving the brain's ability to process visual information. This achieves the goal of improving uncorrected visual acuity without changing the prescription, facilitating practical application and promotion.

[0055] Preferably, the eyeglass frame is provided with a cover. The left-right linear reciprocating motion mechanism includes, but is not limited to, a mounting bracket 41, a moving platform 42, a main screw 43, and a main motor 44. The mounting bracket 41 is disposed between the eyeglass frame and the cover and is fixedly connected to the eyeglass frame. The moving platform 42 is disposed between the left mounting plate 411 and the right mounting plate 412 of the mounting bracket 41 and serves as the moving part of the left-right linear reciprocating motion mechanism. The left and right ends of the main screw 43 rotatably pass through the left mounting plate 411 and the right mounting plate 412, respectively. The main motor 44 is fixedly disposed on the left side... On the outer wall of mounting plate 411 or the right mounting plate 412, the control end of the main motor 44 serves as the controlled end of the left-right linear reciprocating motion mechanism; the moving stage 42 is threadedly connected to the main screw 43, and the output end of the main motor 44 is shaft-connected to one end of the main screw 43; the main motor 44, under the control of the main control module, drives the main screw 43 to rotate clockwise or counterclockwise, so that the moving stage 42 performs left-right linear reciprocating motion under the meshing force of the main screw 43, thereby driving the front-rear linear reciprocating motion mechanism and the rear lens to also perform left-right linear reciprocating motion. The cover is used to protect other internal components from external environmental interference, and can be implemented using a conventional shell structure.

[0056] like Figure 2 As shown, in the specific structure of the left-right linear reciprocating motion mechanism, the mounting bracket 41 is used to fix the entire left-right linear reciprocating motion mechanism between the lens frame and the cover. The moving stage 42 is used to support the front-rear linear reciprocating motion mechanism and the rear lens, so that when it performs left-right linear reciprocating motion, it can also drive them to perform left-right linear reciprocating motion. Considering that the moving stage 42 needs to be prevented from rotating with the main screw 43 by a rotation limiting structure, so as to achieve the purpose of left-right linear reciprocating motion under the meshing force of the main screw, preferably, the left-right linear reciprocating motion mechanism also includes, but is not limited to, a first guide rod 45, and insertion holes 413 are respectively opened on the left mounting plate 411 and the right mounting plate 412. The middle part of the first guide rod 45 slides through the moving stage 42, and the left and right ends of the first guide rod 45 are respectively fixedly inserted into the insertion holes 413 located on the left and right sides. In this way, the first guide rod 45 can form a rotation limiting structure to prevent the moving stage 42 from rotating with the main screw 43. Considering that the moving platform 42 performs left-right linear reciprocating motion, while the main screw 43 performs clockwise or counterclockwise rotational motion, in order to reduce the vibration or instability effects of the rotational motion of the main screw 43 on the left-right linear reciprocating motion of the moving platform 42, such as... Figure 2As shown, preferably, the movable stage 42 has a connecting sleeve 421 inside, wherein the connecting sleeve 421 is threadedly connected to the main screw 43, and a buffer sleeve 46 is provided between the connecting sleeve 421 and the movable stage 42 for fitting outside the connecting sleeve 421. This allows the buffer sleeve 46 to buffer and eliminate the vibration or instability caused by the rotational motion of the main screw 43 on the left-right linear reciprocating motion of the movable stage 42. The main motor 44 can be specifically, but not limited to, a servo motor, so that the main control module can output power signals with different duty cycles and / or different voltages to the power input terminal of the servo motor (i.e., as the control terminal of the main motor) to achieve stepless speed regulation of the main motor 44. Furthermore, as... Figure 2 As shown, the output end of the main motor 44 may, but is not limited to, be connected to the right end of the main screw 43 via a drive threaded sleeve 47 shaft.

[0057] More preferably, the reciprocating linear motion mechanism includes, but is not limited to, a connector, a driving gear, a driven gear, a screw sleeve, an auxiliary screw, and an auxiliary motor. The connector is movably disposed on one side of the moving platform 42 and serves as the moving part of the reciprocating linear motion mechanism. The driving gear and the driven gear are respectively disposed inside the moving platform 42. The auxiliary motor is fixedly disposed on the outer surface of the moving platform 42, and its control end serves as the controlled end of the reciprocating linear motion mechanism. The connector is fixedly connected to the auxiliary screw, which is threadedly connected to the screw sleeve. The screw sleeve is shaft-connected to the driven gear, which meshes with the driving gear. The output end of the auxiliary motor is shaft-connected to the driving gear. The auxiliary motor, under the control of the main control module, sequentially drives the driving gear, the driven gear, and the screw sleeve to rotate clockwise or counterclockwise, so that the auxiliary screw performs a reciprocating linear motion under the meshing force of the screw sleeve, thereby driving the connector and the rear lens to also perform a reciprocating linear motion. The connector on one side of the moving platform 42 also needs to be prevented from rotating with the auxiliary screw along with the screw sleeve by a rotation-limiting structure, so that the auxiliary screw can make a linear reciprocating motion back and forth under the meshing force of the screw sleeve; preferably, a second guide rod is fixedly inserted through the connector, and the moving platform 42 is symmetrically provided with guide grooves (also called guide blind holes) with non-circular cross-section on the front and rear sides, wherein the two ends of the second guide rod are respectively inserted into the front and rear guide grooves in a corresponding manner. In this way, the non-circular cross-section structure of the guide groove can directly prevent the second guide rod from rotating with the screw sleeve (and indirectly prevent the connector and the auxiliary screw from rotating with the screw sleeve). Similarly, since the second guide rod, the connecting piece, and the auxiliary screw reciprocate linearly, and the screw sleeve rotates clockwise or counterclockwise, to reduce the vibration or instability caused by the rotation of the screw sleeve on the reciprocating linear motion of the second guide rod, the connecting piece, and the auxiliary screw, preferably, a connecting plate is provided inside the guide groove. The connecting plate and the ends of the second guide rod are respectively connected to the two ends of a spring. This utilizes the buffering effect of the spring to mitigate the vibration or instability caused by the rotation of the screw sleeve on the reciprocating linear motion of the second guide rod, the connecting piece, and the auxiliary screw. Furthermore, the auxiliary motor can be implemented, but is not limited to, a servo motor, so that the main control module can output power signals with different duty cycles and / or different voltages to the power input terminal of the servo motor (i.e., as the control terminal of the auxiliary motor) to achieve stepless speed regulation of the auxiliary motor.

[0058] Preferably, the frame has temples symmetrically arranged at both ends, and each temple houses a power module for supplying power to the left-right linear reciprocating motion mechanism, the front-back linear reciprocating motion mechanism, and the main control module. The aforementioned power module is specifically, but is not limited to, a lithium battery.

[0059] Preferably, when there are multiple preset positions in the forward and backward linear motion direction, controlling the moving part of the forward and backward linear reciprocating motion mechanism to perform forward and backward linear reciprocating motion includes, but is not limited to: if the position reached by the moving part of the forward and backward linear reciprocating motion mechanism in the forward and backward linear motion direction is not included in the foremost position among the multiple preset positions, then controlling the moving part of the forward and backward linear reciprocating motion mechanism to move forward from the current position in the forward and backward linear motion direction to the next preset setting in the multiple preset positions that is in front of the current position, until reaching the foremost position; if the position reached by the moving part of the forward and backward linear reciprocating motion mechanism in the forward and backward linear motion direction is included in the foremost position among the multiple preset positions, then controlling the moving part of the forward and backward linear reciprocating motion mechanism to move backward from the current position in the forward and backward linear motion direction to the next preset setting in the multiple preset positions that is behind the current position, until reaching the rearmost position among the multiple preset positions. Specifically, the plurality of preset positions include, but are not limited to, a rearmost position, a frontmost position, and intermediate positions between the rearmost and frontmost positions. The rearmost position is the position of the rear lens that, after the user wears the frame, places the user's eyes in the optimal visual state. The frontmost position is the position of the rear lens that, after the user wears the frame, places the user's eyes in a blurred visual state. The number of intermediate positions is K, where K represents a positive integer. Each intermediate position, of the rear lens, improves the user's eye's refractive power relative to the position before forward or backward movement after the user wears the frame. The position of the refractive power. For example, the plurality of preset positions may specifically include the following six positions: 0mm position (i.e., the rearmost position, because its distance from the rearmost position in the direction of linear movement is 0mm, hence this designation), 2mm position (i.e., the first intermediate position, because its distance from the rearmost position in the direction of linear movement is 2mm, hence this designation), 4mm position (i.e., the second intermediate position, because its distance from the rearmost position in the direction of linear movement is 4mm, hence this designation), 6mm position (i.e., the third intermediate position, because its distance from the rearmost position in the direction of linear movement is 6mm, hence this designation), 8mm position (i.e., the fourth intermediate position, because its distance from the rearmost position in the direction of linear movement is 6mm, hence this designation), and 2mm position (i.e., the fourth intermediate position, because its distance from the rearmost position in the direction of linear movement is 6mm, hence this designation), and 8mm position (i.e., the fourth intermediate position, because its distance from the rearmost position in the direction of linear movement is 0mm, hence this designation). The distance between the front and rear linear motion directions is 8mm (hence this designation) and the 10mm position (i.e., the foremost position, as the distance between it and the rearmost position in the front and rear linear motion directions is 10mm, hence this designation). The moving part of the front and rear linear reciprocating motion mechanism is controlled to perform front and rear linear reciprocating motion in the following process: First, the moving part of the front and rear linear reciprocating motion mechanism and the rear lens are controlled to move forward sequentially from the 0mm position to the 2mm, 4mm, 6mm, 8mm, and 10mm positions. Then, the moving part of the front and rear linear reciprocating motion mechanism and the rear lens are controlled to move backward sequentially from the 10mm position to the 8mm, 6mm, 4mm, 2mm, and 0mm positions. Furthermore, since K is 4, each movement of the rear lens forward or towards the center results in a 0.2D change in refractive power of visual acuity during the persistence of vision.

[0060] Further preferably, the movement time of the moving part of the front-rear linear reciprocating motion mechanism from the current position to the next preset position in the plurality of preset positions, which is located in front of the current position, is negatively correlated with the distance from the current position to the rearmost position in the front-rear linear motion direction; and / or, the movement time of the moving part of the front-rear linear reciprocating motion mechanism from the current position to the next preset position in the plurality of preset positions, which is located behind the current position, is negatively correlated with the distance from the current position to the rearmost position in the front-rear linear motion direction. For example, the movement time of the moving part of the front-rear linear reciprocating motion mechanism from 0mm to 2mm can be configured to 0.2 seconds; the movement time of the moving part of the front-rear linear reciprocating motion mechanism from 2mm to 4mm can be configured to 0.1 seconds; the movement time of the moving part of the front-rear linear reciprocating motion mechanism from 4mm to 6mm can be configured to 0.05 seconds; and so on. The purpose of considering the focal length of the front and rear lenses in this way is to achieve a process and function similar to that of a camera outlining, enabling a process and function similar to that of a camera's filtering and contrast enhancement under stepless speed adjustment: each time the rear lens shifts, the focal length formed with the front lens can change in six dimensions, that is, to form different visual images in the brain, namely the best visual image at 0mm, a relatively clear image at 2mm, a slightly clear image at 4mm, a slightly blurred image at 6mm, a relatively blurred image at 8mm, and a blurred image at 10mm. In this way, after the brain and retina form a clear image each time, a 0.2D zoom can be completed within 0.2 seconds. At this time, the brain's visual cortex is still reflecting the clear image from 0.2 seconds ago; and even if a blurred image has formed within 0.2 seconds, the brain still recognizes it as a clear image, thus improving the brain's 0.2D error tolerance. By analogy, when the next 0.2 seconds arrive, the zoom range changes to 0.4D, that is, the brain's error tolerance is improved to 0.4D, or the depth of field is increased by 0.4D. In this way, the brain's highest fault tolerance during training averages around 4D (that is, within the duration of visual persistence, the brain's neurons learn the functions of processing images after the eyes see objects in the above six situations, and the training dimensions are more extensive), which improves the brain's ability to adapt to fuzziness and its reaction speed, and increases its fault tolerance.Furthermore, after repeated training, in subsequent actual naked-eye vision, within a certain depth of focus where objects can be clearly seen, the eyes can effectively and clearly see objects. This provides strong technical support for the vision recovery of trainees and overcomes the drawbacks of existing technologies that use glasses to train vision recovery. Because the control circuit of the training glasses controls the speed of the motor reduction mechanism at a constant speed, meaning it is at a fixed value, it can only achieve two modes of vision training: foggy vision and clear vision. This can lead to the establishment of a fixed thinking pattern in the trainee's brain. When viewing objects naked-eye without wearing the glasses, the brain's ability to integrate visual information from the optic nerve decreases, and objects cannot be clearly seen within the depth of focus that should be clearly visible, which will affect the vision recovery of trainees.

[0061] The existing knowledge regarding fuzzy adaptation theory explains it as follows: Human vision refers to the ability to distinguish small or distant objects and minute details. The eye's ability to identify distant objects or targets is called distance vision, and the ability to identify small objects or targets nearby is called near vision. During health checks, distance vision is primarily assessed. Under certain conditions, the smaller the object the eye can distinguish, the greater its visual acuity. The fundamental characteristic of vision lies in distinguishing the distance between two points. Vision can be divided into static vision, dynamic vision, and night vision. Static vision refers to vision measured when both the person and the observed object are stationary. Dynamic vision refers to the eye's ability to capture, decompose, and perceive images of moving targets. Driving at high speeds alters the body's physiological state, specifically reducing dynamic vision. The eye possesses various levels and functions of visual function, all of which are connected to the brain's visual system to some extent. The eye is an inherent component of the brain system; the eye or ocular tissue is merely an important channel for communication between the brain and the outside world. All eye movements are controlled by the brain, and the visual activities and functions of the ocular tissue serve to meet the brain's visual needs. In fact, the greater the correlation between visual functions and the brain's visual system, the greater their importance. Furthermore, the coordination between the brain's visual system, eye organs and tissues, and visual function is crucial; most of the time, they influence each other and are mutually causal. Visual acuity is primarily composed of two parts: the eyes and the brain. Based on the principles of visual function formation, fuzzy logic mainly focuses on the brain's visual system. Fuzzy adaptation is essentially visual perception training aimed at improving the brain's image recognition ability, also known as improving fuzzy recognition ability. Unlike traditional vision training, it does not train eye muscles or binocular integration. This type of training emphasizes the integration and compensation of higher brain centers, stimulating the power of the cerebral cortex, awakening the brain's compensatory effects, and improving the trainee's vision. For example, simultaneous binocular vision and stereoscopic vision training significantly help with monocular amblyopia, especially refractory amblyopia, indicating that higher brain centers also play a positive role in visual acuity recognition. Visual acuity is a highly subjective measurement, related not only to the eye's refractive state (myopia, hyperopia, astigmatism) but also to many other factors, primarily the brain's learning and analytical abilities. Fuzzy adaptation is the process by which the brain learns to analyze what the eyes see, and it can significantly affect visual outcomes.

[0062] This embodiment can also be extended by installing an application (APP) on the mobile phone that can receive the scene observed by the training glasses device (i.e., the mechanical operating system of this embodiment). The mobile APP and the main control module of the training glasses device can interact (the specific interaction method can be, but is not limited to, Bluetooth communication technology). In the application, when the trainee is wearing the training glasses device and observing the scene, the mobile APP displays the scene on the phone screen. When the trainee is not observing the scene (i.e., when moving the rear lens), the mobile phone display screen displays the power signal (specifically a rectangular square wave signal) output by the main control module and based on Gabor function theory with different duty cycles. The trainee views the rectangular square wave display screen on the mobile phone. The advantage described above lies in its ability to depict the formation process of blurred images in the brain from two dimensions: spatial (scenery) and frequency (rectangular waves on the phone screen). For example, the frequency dimension of the rectangular waves is constantly changing under software control, while the spatial dimension is controlled by the change in the distance between the two lenses. This allows the brain to be trained step by step, rather than like existing ordinary zoom glasses that blur everything at once, creating a fixed mindset in the trainee's brain. When training with the device without glasses, the brain's integration of the optic nerve's response slows down, its error tolerance decreases, and uncorrected vision cannot be effectively restored. This embodiment, through the aforementioned steps of outlining, filtering, contrast enhancement, and waveform observation, improves the brain's ability to adapt to blur and its reaction speed, increasing its error tolerance and providing strong technical support for the vision recovery of trainees.

[0063] In summary, the mechanical operating system provided in this embodiment has the following technical effects:

[0064] (1) This embodiment provides a new vision training aid based on progressive multifocal ophthalmic lenses to improve uncorrected visual acuity. It includes a frame, a front lens, a rear lens, a left-right linear reciprocating motion mechanism, a front-back linear reciprocating motion mechanism, and a main control module. The front and rear lenses are progressive multifocal ophthalmic lenses. Through their arrangement, connection, and working method, the rear lens can be dynamically adjusted to move back and forth and left and right, increasing the zoom range that the glasses can adjust. Through the continuous zooming of the glasses, the lens will continuously adjust and change its refractive power during the repeated overlap of clear and defocused images, thereby increasing the elasticity of the lens, enhancing the ciliary muscle's adjustment ability, and improving the brain's ability to process visual information, thereby achieving the goal of improving uncorrected visual acuity without changing the diopter.

[0065] (2) By making the movement process complete at different times during each back-and-forth linear movement of the rear lens, it can complete a process and function similar to the filtering and contrast enhancement of a camera under stepless speed regulation, thereby enabling the wearer to see effectively within different depths of focus. The brain's highest error tolerance can reach about 4D on average, which improves the brain's reaction speed in integrating the optic nerve and increases the error tolerance. In actual naked-eye vision, within a certain depth of focus where objects can be clearly seen, objects can be seen effectively and clearly. This provides strong technical support for the wearer's vision recovery and is convenient for practical application and promotion.

[0066] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A mechanical operating system for improving uncorrected visual acuity based on progressive multifocal lenses, characterized in that, It includes a frame, a front lens, a rear lens, a left-right linear reciprocating motion mechanism, a front-back linear reciprocating motion mechanism, and a main control module. The front lens and the rear lens are progressive multifocal lenses. The front lens is fixedly mounted on the frame, the left and right linear reciprocating motion mechanism is mounted on the frame, the front and rear linear reciprocating motion mechanism is mounted on the moving part of the left and right linear reciprocating motion mechanism, the rear lens is fixedly mounted on the moving part of the front and rear linear reciprocating motion mechanism and located behind the front lens, and the main control module is also fixedly mounted on the frame. The main control module is electrically connected to the controlled ends of the left and right linear reciprocating motion mechanisms and the front and rear linear reciprocating motion mechanisms, respectively, and is used to execute the following steps S1 to S2: S1. Control the moving part of the left and right linear reciprocating motion mechanism to perform left and right linear reciprocating motion, so as to drive the front and rear linear reciprocating motion mechanism and the rear lens to also perform left and right linear reciprocating motion, change the focal overlap position of the rear lens and the front lens, and achieve the purpose of zooming to exercise the lens and ciliary muscle, and then execute step S2. S2. After a preset time, control the moving part of the front-to-back linear reciprocating motion mechanism to perform front-to-back linear reciprocating motion, so as to drive the rear lens to also perform front-to-back linear reciprocating motion, change the focal length formed by the combination of the rear lens and the front lens, and achieve the purpose of adjusting the zoom range of the glasses, and then return to the execution step S1.

2. The mechanical operating system as described in claim 1, characterized in that, The eyeglass frame is provided with a cover. The left and right linear reciprocating motion mechanism includes a mounting frame (41), a moving stage (42), a main screw (43), and a main motor (44). The mounting frame (41) is disposed between the eyeglass frame and the cover and is fixedly connected to the eyeglass frame. The moving stage (42) is disposed between the left mounting plate (411) and the right mounting plate (412) of the mounting frame (41) and is used as the moving part of the left and right linear reciprocating motion mechanism. The left and right ends of the main screw (43) are rotatably passed through the left mounting plate (411) and the right mounting plate (412) respectively. The main motor (44) is fixedly disposed on the outer wall of the left mounting plate (411) or the right mounting plate (412). The control end of the main motor (44) is used as the controlled end of the left and right linear reciprocating motion mechanism. The movable stage (42) is threadedly connected to the main screw (43), and the output end of the main motor (44) is shaft-connected to one end of the main screw (43); The main motor (44) is used to drive the main screw (43) to rotate clockwise or counterclockwise under the control of the main control module, so that the moving platform (42) can make left and right linear reciprocating motion under the meshing force of the main screw (43), thereby driving the front and rear linear reciprocating motion mechanism and the rear lens to also make left and right linear reciprocating motion.

3. The mechanical operating system as described in claim 2, characterized in that, The front and rear linear reciprocating motion mechanism includes a connector, a driving gear, a driven gear, a screw sleeve, a secondary screw, and a secondary motor. The connector is movably disposed on one side of the movable table (42) and serves as the moving part of the front and rear linear reciprocating motion mechanism. The driving gear and the driven gear are respectively disposed inside the movable table (42). The secondary motor is fixedly disposed on the outer surface of the movable table (42), and the control end of the secondary motor serves as the controlled end of the front and rear linear reciprocating motion mechanism. The connecting piece is fixedly connected to the auxiliary screw, the auxiliary screw is threadedly connected to the screw sleeve, the screw sleeve shaft is connected to the driven gear, the driven gear meshes with the driving gear, and the output end shaft of the auxiliary motor is connected to the driving gear; The auxiliary motor is used to drive the drive gear, the driven gear, and the screw sleeve to rotate clockwise or counterclockwise in sequence under the control of the main control module, so that the auxiliary screw can make a back-and-forth linear reciprocating motion under the meshing force of the screw sleeve, thereby driving the connector and the rear lens to also make a back-and-forth linear reciprocating motion.

4. The mechanical operating system as described in claim 3, characterized in that, A second guide rod is fixedly inserted through the connector. The front and rear sides of the moving platform (42) are symmetrically provided with guide grooves with non-circular cross sections. The two ends of the second guide rod are respectively inserted into the front and rear guide grooves.

5. The mechanical operating system as described in claim 4, characterized in that, A connecting plate is fixed inside the guide groove, wherein the ends of the connecting plate and the second guide rod are respectively connected to the two ends of the spring.

6. The mechanical operating system as described in claim 2, characterized in that, The left and right linear reciprocating motion mechanism also includes a first guide rod (45), and insertion holes (413) are respectively opened on the left mounting plate (411) and the right mounting plate (412). The middle part of the first guide rod (45) slides through the moving platform (42), and the left and right ends of the first guide rod (45) are respectively fixedly inserted into the insertion holes (413) located on the left and right sides.

7. The mechanical operating system as described in claim 1, characterized in that, The frame has symmetrical temples at both ends, and the temples contain power modules for supplying power to the left and right linear reciprocating motion mechanism, the front and rear linear reciprocating motion mechanism, and the main control module.

8. The mechanical operating system as described in claim 1, characterized in that, When there are multiple preset positions in the forward and backward linear motion direction, the moving part of the forward and backward linear reciprocating motion mechanism is controlled to perform forward and backward linear reciprocating motion, including: If the position reached by the moving part of the front-to-back linear reciprocating motion mechanism in the front-to-back linear motion direction is not included in the foremost position among the plurality of preset positions, then the moving part of the front-to-back linear reciprocating motion mechanism is controlled to move forward from the current position in the front-to-back linear motion direction to the next preset setting in the plurality of preset positions that is in front of the current position, until the foremost position is reached. If the position reached by the moving part of the front-rear linear reciprocating motion mechanism in the front-rear linear motion direction includes the foremost position among the plurality of preset positions, then the moving part of the front-rear linear reciprocating motion mechanism is controlled to move backward from the current position in the front-rear linear motion direction to the next preset position after the current position among the plurality of preset positions, until the rearmost position among the plurality of preset positions is reached.

9. The mechanical operating system as described in claim 8, characterized in that, The plurality of preset positions include a rearmost position, a frontmost position, and intermediate positions between the rearmost and frontmost positions. The rearmost position is the position of the rear lens that, after the user wears the frame, places the user's eyes in the optimal visual state. The frontmost position is the position of the rear lens that, after the user wears the frame, places the user's eyes in a blurred visual state. The number of intermediate positions is K, where K represents a positive integer. Each intermediate position, of the rear lens, improves the user's eye's refractive power relative to the position before forward or backward movement after the user wears the frame. Position of refractive power.

10. The mechanical operating system as described in claim 8, characterized in that, The movement time of the moving part of the back-and-forth linear reciprocating motion mechanism from the current position to the next preset position in the plurality of preset positions and located in front of the current position is negatively correlated with the distance from the current position to the rearmost position in the back-and-forth linear motion direction. And / or, the movement time of the moving part of the front-back linear reciprocating motion mechanism from the current position to the next preset position in the plurality of preset positions and located behind the current position is negatively correlated with the distance from the current position to the rearmost position in the front-back linear motion direction.

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