An optical lens with high-frequency disturbance information

Abstract

The present invention relates to the field of optical equipment for myopia prevention and control, and in particular to an optical lens with high-frequency disturbance information. It comprises: a basic face shape area and a high-frequency control area; the center of the basic face shape area coincides with the center of the optical lens, and the high-frequency control area is arranged around the outer peripheral side of the basic face shape area. The high-frequency control area comprises a plurality of high-frequency lens units, and the plurality of high-frequency lens units are arranged closely adjacent to each other. The face shape of each high-frequency lens unit has a face shape structure with at least two height fluctuation cycles in at least one direction of the unit radial direction or the unit tangential direction. The effect of the microstructure face shape in the high-frequency lens unit of the present invention on the retina is mainly high-frequency disturbance, thereby effectively reducing the side effects of the low-frequency disturbance generated by the traditional spherical lens on the visual effect, so as to ensure the visual quality. At the same time, the high-frequency lens unit has at least two height fluctuation cycles in at least one direction; thereby providing the retina with continuously changing dynamic stimulation to slow down the adaptation speed of the retina.

Description

Technical Field

[0001] The present invention relates to the field of myopia prevention and control optical equipment, and in particular to an optical lens with high-frequency disturbance information. Background Art

[0002] like Figure 2 As shown, the surface shape of the microstructure lens unit in the traditional myopia prevention and control glasses is a spherical lens, and the spherical lens usually modulates the light to produce more low-frequency information light. Therefore, the disturbance of the microstructure to the retina is a low-frequency disturbance, and these low-frequency information lights are prone to produce double images, ghosting and other problems, which have a greater impact on the visual quality. In order to take into account the visual quality, this kind of lens often needs to leave a large gap between the microstructure lens units to provide clear vision through the base area within the gap. However, this dispersed arrangement has low space utilization, which is essentially a compromise made to take into account the visual quality, which will reduce the intensity of the disturbance of the microstructure lens unit to the retina, thereby reducing the effect of myopia prevention and control.

[0003] Moreover, the spherical lens of the microstructure lens unit has complete rotational symmetry and axial symmetry, so the stimulation signal within a single microstructure lens unit is isotropic. This highly consistent stimulation signal is likely to cause retinal adaptation after long-term wearing, thus leading to a gradual decrease in the prevention and control effect. Summary of the invention

[0004] In view of this, the present invention provides an optical lens with high-frequency disturbance information, which at least partially solves the problems existing in the prior art.

[0005] According to one aspect of the present invention, an optical lens with high-frequency disturbance information is provided, the optical lens comprising: a basic surface area and a high-frequency control area,

[0006] The center of the basic face shape area coincides with the center of the optical lens, and the face shape of the optical lens located in the basic face shape area is used to form a clear visual imaging;

[0007] The high-frequency control area is arranged around the outer periphery of the basic surface area, and the high-frequency control area includes multiple high-frequency lens units, and the multiple high-frequency lens units are arranged closely adjacent to each other. The ratio of the intensity of the high-frequency signal generated by the optical lens surface in the high-frequency control area to the intensity of all signals generated by the optical lens surface in the high-frequency control area is greater than the high-frequency proportion threshold; the signal intensity is the signal component represented by each frequency domain point after the optical lens surface in the high-frequency control area is subjected to a two-dimensional Fourier transform, and the size of the modulus of the corresponding imaginary number; the high-frequency signal is a signal whose spatial frequency is higher than the frequency limit; the value range of the frequency limit is [0.2mm -1 , 5mm -1 ];

[0008] The surface of each high-frequency lens unit has a surface structure with at least two height fluctuation periods in at least one direction of the unit radial direction or the unit tangent direction; each pair of wave crests and wave troughs in the surface structure is a height fluctuation period; the local maximum in the height direction of the surface structure is the wave crest, and the local minimum is the wave trough; the unit tangent direction is the circumferential direction of the high-frequency lens unit, and the unit radial direction is any diameter direction of the high-frequency lens unit.

[0009] Furthermore, the surface center of the microstructure in the high-frequency lens unit is located at the geometric center of the high-frequency lens unit, or the surface center of the microstructure in the high-frequency lens unit is offset relative to the geometric center of the high-frequency lens unit;

[0010] The eccentricity vector and V of each high-frequency lens unit in any eccentric area satisfy the following conditions:

[0011] ;

[0012] ;

[0013] Wherein, │V│ is the modulus of V; Vi is the eccentric vector of the i-th microstructure surface in the eccentric area, which points from the geometric center of the high-frequency lens unit to the center of the microstructure surface after the high-frequency lens unit is offset; n is the number of complete high-frequency lens units in the eccentric area, n≥2; a<0.2nR, and R is the radius of the circumscribed circle of the high-frequency lens unit.

[0014] Furthermore, the height Z(r) of any point in the surface structure of the high-frequency lens unit satisfies the following conditions:

[0015] ;

[0016] Among them, r is the projection distance between the current point and the center of the microstructure surface; r0 is the length from the center of the microstructure surface to the boundary of the corresponding microstructure surface on the radial section where the current point is located, and the shape formed by all radial sections in the microstructure surface is a regular polygon; A1 is the microstructure amplitude; T1 is the normalized period, T1∈(0,1).

[0017] Furthermore, the regular polygon is an equilateral triangle, a square or a regular hexagon.

[0018] Furthermore, the height Z1(r) of any point in the surface structure of the high-frequency lens unit that is at a distance r from the center of the microstructure surface satisfies the following conditions:

[0019] ;

[0020] Among them, r is the projection distance between the current point and the center of the microstructure surface; d is the diameter of the circumscribed circle of the microstructure surface; α jis the coefficient of the jth order term of the radial profile polynomial of the microstructure surface, and w is the degree of the highest order term of the radial profile polynomial of the microstructure surface.

[0021] Furthermore, with the center of the microstructure surface as the origin and the horizontal positive direction as the reference axis, the height Z2(θ) of each point on the radial section that forms an angle θ with the reference axis in the surface structure of the high-frequency lens unit satisfies the following conditions:

[0022] ;

[0023] Among them, A2 is the tangential amplitude of the microstructure; T2 is the angular period, the value of T2 is the angle value, and θ0 is the adjustment phase.

[0024] Furthermore, the height of any point in the surface structure of the high-frequency lens unit is generated by fusing the height of the radially fluctuating surface and the height of the tangentially fluctuating surface;

[0025] The height Z1(r) of the radial wave profile satisfies the following conditions:

[0026] ;

[0027] Among them, r is the projection distance between the current point and the center of the microstructure surface; d is the diameter of the circumscribed circle of the microstructure surface; α j is the coefficient of the jth order term of the radial profile polynomial of the microstructure surface, and w is the degree of the highest order term of the radial profile polynomial of the microstructure surface;

[0028] The height of the tangential wave profile meets the following conditions:

[0029] With the center of the microstructure surface as the origin and the horizontal positive direction as the reference axis, the height Z2(θ) of each point on the radial section that forms an angle θ with the reference axis in the surface structure of the high-frequency lens unit satisfies the following conditions:

[0030] ;

[0031] Among them, A2 is the tangential amplitude of the microstructure; T2 is the angular period, the value of T2 is the angle value, and θ0 is the adjustment phase.

[0032] Furthermore, the frequency limit is 1mm -1 .

[0033] Furthermore, the outer edge of the high-frequency lens unit is a regular polygon structure, and the regular polygon is a regular triangle, a square, or a regular hexagon.

[0034] Furthermore, the high-frequency ratio threshold value ranges from [0.7, 0.8].

[0035] Furthermore, the high frequency ratio threshold is set to 0.8.

[0036] Furthermore, the basic surface area is circular or polygonal, the area of ​​the basic surface area is greater than or equal to the area of ​​the projection area corresponding to the normal scanning field of the human eye on the optical lens, and the surface shape of the optical lens in the basic surface area is spherical or aspherical.

[0037] Furthermore, if the basic surface area is circular, the value range of the diameter of the basic surface area is [2 mm, 12 mm].

[0038] The technical solution of the present invention has at least the following beneficial effects:

[0039] The optical lens of the present invention includes a basic face shape area and a high-frequency control area, wherein the basic face shape area is a basic mirror face shape, and is not provided with any high-frequency lens unit with a modulation function, so as to cover the clear area at the center of the human eye's field of vision, thereby obtaining a clear visual effect therefrom. Then, a high-frequency control area is provided on the periphery of the basic face shape area, and the high-frequency disturbance information generated by the high-frequency lens unit therein is used to generate high-frequency stimulation information for the blurred area around the field of vision, so as to prevent and control myopia.

[0040] Compared with the low-frequency disturbance of traditional spherical lenses, the effect of the microstructure surface in the high-frequency lens unit of the present invention on the retina is mainly high-frequency disturbance, which can effectively reduce the side effects of the low-frequency disturbance generated by traditional spherical lenses on visual effects to ensure visual quality.

[0041] At the same time, the surface of the high-frequency lens unit has a surface structure with at least two height fluctuation periods in at least one direction of the unit radial or unit tangential direction; this will make the disturbance signals along various directions in different high-frequency lens units different, thereby providing the retina with continuously changing dynamic stimulation to slow down the adaptation speed of the retina and enhance the sustainability of the prevention and control effect.

[0042] In addition, the different high-frequency lens units in the present invention are seamlessly and closely arranged, which has a higher space utilization rate and is convenient for applying stronger disturbing high-frequency stimulation to improve the myopia prevention and control effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0044] Figure 1This is a structural schematic diagram of an optical lens with high-frequency disturbance information in one embodiment of the present application, wherein a is a diagram of the overall structure of the lens, b is a local enlarged surface height schematic diagram of the dotted circle area in a (i.e., D6), the color legend in the figure represents the height information of the surface, D6 is a local area in the high-frequency control area, wherein the diameter of D6 is greater than or equal to 3 times the circumscribed circle diameter of the high-frequency lens unit, and c is a local enlarged surface height schematic diagram of a high-frequency lens unit in b.

[0045] Figure 2 Schematic diagram of related information of myopia prevention and control glasses in the prior art, wherein a is a schematic diagram of the height of the face shape when viewed from above in D6, and the color legend in the figure indicates the height information of the face shape; b is a schematic diagram of the face shape in a after two-dimensional fast Fourier transform (2DFFT, Two-Dimensional Fast Fourier Transform), the color legend in the figure represents the spatial frequency intensity information; c is a schematic diagram of the surface height information of the surface shape in a in the radial section direction; d is a schematic diagram of the surface height of a single microstructure lens unit in a; e is a schematic diagram of the surface fluctuation information of the microstructure lens unit surface shape in d in the radial direction of the unit, wherein the horizontal axis (X axis) represents the relative position of each point in the radial direction of the unit and the geometric center of the microstructure lens unit, and the vertical axis (Z axis) represents the height information of the surface shape corresponding to each point in the radial direction of the unit; f is a schematic diagram of the surface fluctuation information of the microstructure lens unit surface shape in d in the tangential direction of the unit; wherein the horizontal axis (X axis) represents the angle between the line connecting each point in the tangential direction of the unit and the geometric center of the microstructure lens unit and the radial direction of the unit, and the vertical axis (Z axis) represents the height information of the surface shape corresponding to each point in the tangential direction of the unit.

[0046] Figure 3 Schematic diagram of the center offset of the microstructure surface in the high-frequency lens unit in another embodiment of the present application.

[0047] Figure 4 This is a schematic diagram showing various physical quantities when the edge of the top view of the microstructure surface is a regular polygonal surface structure in another embodiment of the present application.

[0048] Figure 5.1 This is a schematic diagram of relevant information of the high-frequency lens unit when the edge of the top view of the microstructure surface in another embodiment of the present application is a regular hexagonal surface structure, wherein a is a schematic diagram of the surface height of a single high-frequency lens unit; b is a three-dimensional schematic diagram of the surface of a single high-frequency lens unit; c is a schematic diagram of the surface fluctuation information of the high-frequency lens unit surface in a in the tangential direction of the unit; d is a schematic diagram of the surface fluctuation information of the high-frequency lens unit surface in a in the radial direction of the unit.

[0049] Figure 5.2Schematic diagram of relevant information in the D6 region when the edge of the top view of the microstructure surface in another embodiment is a regular hexagonal surface structure, wherein a is a schematic diagram of the surface height in the D6 region; b is a schematic diagram of the frequency domain information of the surface in the D6 region after two-dimensional fast Fourier transform; c is a schematic diagram of the surface fluctuation information of the surface in a in the radial direction of D6.

[0050] Figure 6.1 This is a schematic diagram of related information of the high-frequency lens unit when the edge of the top view of the microstructure surface in another embodiment of the present application is a regular hexagonal surface structure, and regular eccentricity is introduced, wherein a is a schematic diagram of the surface height of a single high-frequency lens unit; b is a three-dimensional schematic diagram of the surface of a single high-frequency lens unit; c is a schematic diagram of the surface fluctuation information of the high-frequency lens unit surface in a in the tangential direction of the unit; d is a schematic diagram of the surface fluctuation information of the high-frequency lens unit surface in a in the radial direction of the unit.

[0051] Figure 6.2 The top view of the microstructure surface in another embodiment has a regular hexagonal surface structure, and a schematic diagram of related information in the D6 area when a regular eccentricity is introduced, wherein a is a schematic diagram of the surface height in the D6 area; b is a schematic diagram of the frequency domain information of the surface in the D6 area after two-dimensional fast Fourier transform; c is a schematic diagram of the surface fluctuation information of the surface in a in the radial direction of D6.

[0052] Figure 7.1 This is a schematic diagram of related information of the high-frequency lens unit when the edge of the top view of the microstructure surface in another embodiment of the present application is a regular hexagonal surface structure and irregular eccentricity is introduced, wherein a is a schematic diagram of the surface height of a single high-frequency lens unit; b is a three-dimensional schematic diagram of the surface of a single high-frequency lens unit; c is a schematic diagram of the surface fluctuation information of the high-frequency lens unit surface in a in the tangential direction of the unit; d is a schematic diagram of the surface fluctuation information of the high-frequency lens unit surface in a in the radial direction of the unit.

[0053] Figure 7.2 The top view of the microstructure surface in another embodiment has a regular hexagonal surface structure, and a schematic diagram of related information in the D6 region when irregular eccentricity is introduced, wherein a is a schematic diagram of the surface height in the D6 region; b is a schematic diagram of the frequency domain information of the surface in the D6 region after two-dimensional fast Fourier transform; c is a schematic diagram of the surface fluctuation information of the surface in a in the radial direction of D6.

[0054] Figure 8.1This is a schematic diagram of related information of the high-frequency lens unit when the edge of the top view of the microstructure surface in another embodiment of the present application is a square surface structure and irregular eccentricity is introduced, wherein a is a schematic diagram of the surface height of a single high-frequency lens unit; b is a three-dimensional schematic diagram of the surface of a single high-frequency lens unit; c is a schematic diagram of the surface fluctuation information of the high-frequency lens unit surface in a in the tangential direction of the unit; d is a schematic diagram of the surface fluctuation information of the high-frequency lens unit surface in a in the radial direction of the unit.

[0055] Figure 8.2 The top view of the microstructure surface in another embodiment has a square surface structure with irregular eccentricity, wherein a is a schematic diagram of the surface height in the D6 region; b is a schematic diagram of the frequency domain information of the surface in the D6 region after two-dimensional fast Fourier transform; and c is a schematic diagram of the surface fluctuation information of the surface in a in the radial direction of D6.

[0056] Fig. 9 This is a schematic diagram showing various physical quantities when the edge of the top view of the microstructure surface is a circular surface structure in another embodiment of the present application (that is, when the surface structure needs to be constructed by combining tangential fluctuations and / or radial fluctuations).

[0057] Figure 10.1 This is a schematic diagram of relevant information of a high-frequency lens unit when, in another embodiment of the present application, the microstructure surface is constructed only by radial fluctuations and the highest order of the radial profile polynomial of the surface is 6, wherein a is a schematic diagram of the surface height of a single high-frequency lens unit; b is a three-dimensional schematic diagram of the surface of a single high-frequency lens unit; and c is a schematic diagram of the surface fluctuation information of the high-frequency lens unit surface in the radial direction of the unit in a.

[0058] Figure 10.2 The figure is a schematic diagram of the relevant information in the D6 region when the microstructure surface is constructed only by radial fluctuations in another embodiment and the highest order of the radial profile polynomial of the surface is 6, wherein a is a schematic diagram of the surface height in the D6 region; b is a schematic diagram of the frequency domain information of the surface in the D6 region after two-dimensional fast Fourier transform; c is a schematic diagram of the surface fluctuation information of the surface in a in the radial direction of D6.

[0059] Fig.11 for Figure 10.1 and 10.2 Schematic diagram of relevant information when regular eccentricity and irregular eccentricity are introduced into the surface structure.

[0060] Figure 12.1In another embodiment of the present application, the radial profile polynomial of the microstructure surface is constructed with a maximum order of 6, and the tangential fluctuation needs to be controlled to produce 8 fluctuation cycles, that is, a schematic diagram of the relevant information of the high-frequency lens unit when T2 is π / 2, wherein a is a schematic diagram of the surface height of a single high-frequency lens unit; b is a three-dimensional schematic diagram of the surface of a single high-frequency lens unit; c is a schematic diagram of the surface fluctuation information of the high-frequency lens unit surface in the tangential direction of the unit in a.

[0061] Figure 12.2 In another embodiment, the radial profile polynomial of the microstructure surface is constructed with a maximum order of 6, and the tangential fluctuation needs to be controlled to produce 8 fluctuation cycles, that is, a schematic diagram of the relevant information in the D6 region when T2 is π / 2, wherein a is a schematic diagram of the surface height in the D6 region; b is a schematic diagram of the frequency domain information of the surface in the D6 region after two-dimensional fast Fourier transform; c is a schematic diagram of the surface fluctuation information of the surface in a in the radial direction of D6.

[0062] Fig.13 for Figure 12.1 and 12.2 Schematic diagram of relevant information when regular eccentricity and irregular eccentricity are introduced into the surface structure.

[0063] Figure 14.1 In another embodiment of the present application, a 5th-order polynomial is selected to construct the radial profile polynomial of the microstructure surface. The tangential fluctuation needs to be controlled to produce 2 fluctuation cycles, that is, a schematic diagram of the relevant information of the high-frequency lens unit when T2 is 2π, wherein a is a schematic diagram of the surface height of a single high-frequency lens unit; b is a three-dimensional schematic diagram of the surface of a single high-frequency lens unit; c is a schematic diagram of the surface fluctuation information of the high-frequency lens unit surface in the tangential direction of the unit in a, and d is a schematic diagram of the surface fluctuation information of the high-frequency lens unit surface in the radial direction of the unit in a.

[0064] Figure 14.2 In another embodiment, a 5th-order polynomial is selected to construct the radial profile polynomial of the microstructure surface. The tangential fluctuation needs to be controlled to produce 2 fluctuation cycles, that is, a schematic diagram of the relevant information in the D6 region when T2 is 2π, wherein a is a schematic diagram of the surface height in the D6 region; b is a schematic diagram of the frequency domain information of the surface in the D6 region after two-dimensional fast Fourier transform; c is a schematic diagram of the surface fluctuation information of the surface in a in the radial direction of D6.

[0065] Fig.15 for Figure 14.1 and 14.2 Schematic diagram of relevant information when regular eccentricity and irregular eccentricity are introduced into the surface structure.

[0066] Reference numerals

[0067] 1. Basic face shape area; 2. High frequency control area. DETAILED DESCRIPTION

[0068] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0069] It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. Moreover, all other embodiments obtained by ordinary technicians in the field without creative work based on the embodiments in the present disclosure are within the scope of protection of the present disclosure.

[0070] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein may be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present disclosure, it should be understood by those skilled in the art that an aspect described herein may be implemented independently of any other aspect, and two or more of these aspects may be combined in various ways. For example, any number of aspects described herein may be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein may be used to implement this device and / or practice this method.

[0071] As an embodiment of the present invention, Figure 1 As shown, an optical lens with high-frequency disturbance information is provided, and the optical lens includes: a basic surface area 1 and a high-frequency control area 2.

[0072] The center of the basic surface shape area 1 coincides with the center of the optical lens, and the surface shape of the optical lens located in the basic surface shape area 1 is used to form a clear visual imaging.

[0073] Specifically, the main purpose of the basic face area 1 in this embodiment is to provide a clear field of vision for the human eye so that the external scene can be clearly viewed. Therefore, the area of ​​the basic face area 1 needs to be greater than or equal to the area of ​​the projection area corresponding to the normal scanning field of vision of the human eye (that is, the angle of the rotating eyeball scanning of the wearer under normal circumstances, corresponding to the range on the lens). Usually, the diameter of the inscribed circle or circumscribed circle of the basic face area 1 can be in the range of [2mm, 12mm].

[0074] So that the basic surface area 1 can completely cover the clear area in the center of the human eye's field of vision, thereby obtaining a clear visual effect therefrom.

[0075] Correspondingly, the shape of the basic face shape area 1 can be circular or polygonal, and the optical lens surface in the basic face shape area 1 can also be spherical or aspherical. Specifically, the face shape and shape selection can be set according to the actual wearing needs.

[0076] like Figure 1As shown, the high-frequency control area 2 is arranged around the outer peripheral side of the basic surface area 1, and the high-frequency control area 2 includes a plurality of high-frequency lens units, and the plurality of high-frequency lens units are arranged closely adjacent to each other. Generally, in order to achieve a close arrangement effect of the high-frequency lens units, the outer edge of the high-frequency lens unit should be set to a regular polygon structure, and preferably, the regular polygon is a regular triangle, a square, or a regular hexagon.

[0077] The ratio P of the intensity of the high-frequency signal generated by the optical lens surface in the high-frequency control area 2 to the intensity of all signals generated by the optical lens surface in the high-frequency control area 2 is greater than the high-frequency proportion threshold. The signal intensity is the size of the modulus of the imaginary number corresponding to the signal component represented by each frequency domain point after the optical lens surface in the high-frequency control area 2 is subjected to a two-dimensional Fourier transform.

[0078] In this embodiment, the spatial information of the face shape is converted into frequency domain information through fast two-dimensional Fourier transform. Correspondingly, in the converted frequency domain information, the frequency range of the high-frequency signal can be set and selected according to actual needs, that is, in actual use, the value of the frequency limit can be finely adjusted according to actual conditions, and the corresponding value range can be [0.2 mm -1 , 5 mm -1 ].like Figure 5.2 As shown, in this embodiment, the high-frequency signal can be a signal with a spatial frequency higher than 1 mm -1 The signal (that is, the position indicated by the red circle in the figure, the position inside the circle is P less than 1 mm -1 signal, otherwise P is greater than 1 mm -1 Here the frequency limit is taken as 1 mm -1 , is to distinguish the high-frequency signal contained in the surface fluctuation of a single microstructure unit (i.e., high-frequency lens unit) from the low-frequency signal contained in the periodic arrangement of microstructures in the microstructure array as a whole. Generally, in this field, the diameter of the circumscribed circle of the microstructure unit is not less than 1 mm, and the spatial period of the regular arrangement of microstructures in the array is greater than 1 mm, that is, the spatial frequency corresponding to the periodic arrangement of microstructures in the array is less than 1 mm -1 .

[0079] In addition, the setting of the high-frequency ratio threshold in this embodiment is to ensure that there is sufficient high-frequency information in the entire high-frequency control area 2 to avoid the influence of low-frequency information on visual imaging, so it is necessary to set the high-frequency ratio threshold according to the actual scene. For example, in this embodiment, the value range of the high-frequency ratio threshold can be [0.7, 0.8], and the preferred value of the high-frequency ratio threshold is 0.8. In the present invention, in order to ensure that there is sufficient high-frequency information in the entire high-frequency control area 2, P within any D6 range (in this embodiment, a circular range with a diameter of 6 mm) is greater than the high-frequency ratio threshold.

[0080] The surface of each high-frequency lens unit has a surface structure with at least two height fluctuation periods in at least one direction of the unit radial direction or the unit tangential direction. Each pair of wave crests and wave troughs in the surface structure is a height fluctuation period. In the present invention, the local maximum in the height direction of the surface structure is a wave crest (such as Figure 5.1 ), the local minimum is the trough (as shown in Figure 5.1 ). The unit tangent direction is the circumferential direction of the high-frequency lens unit, the unit radial direction is any diameter direction of the high-frequency lens unit, and the unit radial direction and the unit tangent direction are perpendicular to each other.

[0081] Specifically, in order to make the surface shape in the high-frequency lens unit generate more complex and changeable high-frequency information, it is necessary to include more structural details in the actual surface shape setting to generate more high-frequency information. In this embodiment, the purpose of increasing the surface shape structural details is achieved by setting multiple height fluctuation cycles in the unit radial direction or the unit tangential direction. For example, multiple height fluctuation cycles can be set in the unit radial direction, or multiple height fluctuation cycles can be set in the unit tangential direction, or multiple height fluctuation cycles can be set in the unit radial direction and the unit tangential direction respectively, and then the height fluctuation cycles in different directions are integrated with each other to form a more complex surface shape detail structure.

[0082] In another possible embodiment of the present invention, the center of the microstructure surface in the high-frequency lens unit is located at the geometric center of the high-frequency lens unit, or Figure 3 As shown, the center of the microstructure surface in the high-frequency lens unit is offset relative to the geometric center of the high-frequency lens unit.

[0083] The eccentricity vector and V of each high-frequency lens unit in any eccentric area satisfy the following conditions:

[0084] .

[0085] .

[0086] Where │V│ is the modulus of V. V i is the eccentric vector of the i-th microstructure surface center in the eccentric region from the geometric center of the high-frequency lens unit to the high-frequency lens unit after the offset. n is the number of complete high-frequency lens units in the eccentric region, n≥2. a<0.2nR, R is the radius of the circumscribed circle of the high-frequency lens unit.

[0087] Specifically, by shifting the center of the microstructure surface of at least part of the high-frequency lens unit in the high-frequency control area 2 in a random direction, not only can the distribution of the high-frequency signal generated inside the high-frequency lens unit be made irregular, but also the distribution of the high-frequency signal can be made more random in the entire high-frequency control area 2. This further enhances the difference of the disturbance signals in various directions in the high-frequency control area 2, and further provides the retina with continuously changing dynamic stimulation, so as to slow down the adaptation speed of the retina and enhance the sustainability of the prevention and control effect.

[0088] In the present invention, the following embodiments of the microstructure surface structure of the high-frequency lens unit are provided:

[0089] First, the edge of the top view of the microstructure surface in the embodiment is a regular polygon. In this embodiment, the height Z (r) of any point in the surface structure of the high-frequency lens unit satisfies the following conditions:

[0090] .

[0091] Among them, Figure 4 As shown, r is the projection distance between the current point and the center of the microstructure surface, r0 is the length of the radial section where the current point is located, and the length of the radial section r0 needs to be selected according to actual needs. The shape formed by all radial sections in the microstructure surface is a regular polygon. Specifically, the regular polygon is an equilateral triangle or a square or a regular hexagon. A1 is the microstructure amplitude. The value of A1 will affect the difference between the highest point and the lowest point in the microstructure surface. In the actual production process, on the one hand, the feasibility of processing needs to be considered, and on the other hand, the filling effect on the surface structure after the lens is coated in the later stage needs to be considered. Therefore, in actual use, A1 needs to be set according to the actual situation, which can usually be [0.5um, 5um]. T1 is the normalized period, T1∈(0, 1).

[0092] Specifically, the present embodiment provides a microstructure surface with a square and a regular hexagonal edge in the top view. In the above construction formula, A1=3um, T1=2 / 3, thereby ensuring that there are 3 cycles of surface fluctuations along the radial direction in the entire microstructure surface. In addition, the diameters of the circumscribed circles of the square and the regular hexagon are both 1.32mm. Specifically, Figure 5.1 and Figure 5.2 The figure shows the top view of the microstructure surface with a regular hexagonal edge. It can be seen from the figure that in the high-frequency control area 2 composed of the densely packed regular hexagonal radial undulating microstructure, the unit tangentially has 12 subtle undulation cycles in the single high-frequency lens unit and the unit radially has 3 undulation cycles, thereby generating more high-frequency disturbances. And within the D6 range, the spatial frequency is greater than 1mm -1 The signal proportion P=83.8%>0.8.

[0093] like Figure 6.1 and Figure 6.2 As shown in FIG. 1 , the top view edge of the microstructure surface is a regular hexagon and the center of the microstructure surface is regularly offset. When performing offset construction, first, the center of the microstructure surface after the offset needs to be determined. Specifically, Figure 4 As shown, the new microstructure surface center after the offset can be determined through the original center of the microstructure and the offset q, and then the corresponding eccentric surface can be generated according to the above surface construction formula.

[0094] As can be seen from the figure, the microstructure after the regular hexagonal regular eccentricity (that is, the eccentricity direction of different eccentric units is consistent) breaks the rotational symmetry of the original microstructure, making the high-frequency perturbations in different directions in the unit different, and enhancing the randomness of the perturbation. And within the D6 range, P=83.1%>0.8.

[0095] like Figure 7.1 and Figure 7.2 The top view of the microstructured surface is shown in the figure. The edge of the microstructured surface is a regular hexagon and the center of the microstructured surface is irregularly offset. As can be seen from the figure, the irregular eccentricity introduced (that is, the eccentricity directions of different eccentric units are not the same) makes the eccentricity and position of different units different, further enhancing the randomness of the disturbance to slow down the adaptation of the retina to the disturbance signal. In the D6 range, P=83.9%>0.8.

[0096] like Figure 8.1 and Figure 8.2 The figure shows the situation of the surface structure with a square edge in the top view of the microstructure surface. It can be seen from the figure that in the high-frequency control area 2 composed of densely packed square radial wavy microstructures, the unit tangentially has 8 subtle wavy periods and the unit radially has 3 wavy periods. And within the range of D6, P=86.1%>0.8. Correspondingly, the center of the microstructure surface in the square structure can also be regularly or irregularly offset to form a more random high-frequency disturbance.

[0097] Secondly, the edge of the top view of the microstructure surface in the embodiment is circular, and in order to conform to the polygonal structure of the high-frequency lens unit, the surface structure in the embodiment needs to be cut along the edge into a corresponding regular polygon. In this embodiment, the surface structure of the high-frequency lens unit generates the corresponding surface by controlling the radial fluctuation and tangential fluctuation of the microstructure.

[0098] The radial fluctuation of the microstructure is controlled and generated in the following manner. Specifically, the height Z1(r) of any point in the surface structure of the high-frequency lens unit that is r away from the center of the microstructure surface satisfies the following conditions:

[0099] .

[0100] Among them, Fig. 9 As shown, r is the projection distance between the current point and the center of the microstructure surface. d is the diameter of the circumscribed circle of the microstructure surface. j is the coefficient of the jth order term of the radial profile polynomial of the microstructure surface, and w is the degree of the highest order term of the radial profile polynomial of the microstructure surface. Profile polynomial is a very important tool in optical design and manufacturing. It can generate more complex curves and surfaces by setting and adjusting the polynomials and coefficients that are not passed. The radial profile in this embodiment can be constructed by the profile polynomial.

[0101] The tangential fluctuations of the microstructure are controlled and generated as follows: Fig. 9 As shown, with the center of the microstructure surface as the origin and the horizontal positive direction as the reference axis (i.e., the x-axis), the height Z2(θ) of each point on the radial section that forms an angle θ with the reference axis in the surface structure of the high-frequency lens unit satisfies the following conditions:

[0102] .

[0103] Among them, A2 is the tangential amplitude of the microstructure. After the tangential amplitude is combined with the amplitude in the radial fluctuation, the amplitude of the entire microstructure will be generated. Therefore, when determining the amplitude value, the above-mentioned A1 value considerations can be referred to. T2 is the angular period, and the value of T2 is the angle value. In the construction formula of this tangential fluctuation, the number of fluctuation periods in the tangential direction of the fluctuation is mainly adjusted by the value of T2, such as T2 can be π / 2. θ0 is the adjustment phase, which is used to determine the starting value of Z2(θ) when θ is 0.

[0104] In this embodiment, the surface requirements of the microstructure can be met by constructing radial fluctuations or tangential fluctuations alone, and a combination of radial fluctuations and tangential fluctuations can also be used (e.g. or The existing fusion methods such as the above are used to meet the surface requirements of the microstructure. Specifically, the surface embodiment of the microstructure in the following embodiment is provided for illustration:

[0105] like Figure 10.1 and Figure 10.2 As shown, only radial fluctuations are constructed. Specifically, the radial profile polynomial of this surface type is constructed by selecting a 6th-order polynomial, d=1.52mm. Specifically, the constructed microstructure surface type is as follows Figure 10.1 and Figure 10.2 As shown in , the radial direction of the unit is deformed by a polynomial function and has four fluctuation periods in the radial direction. Fig.11 As shown, regular or irregular eccentric structures can also be introduced into the microstructure surface to form more random high-frequency disturbances.

[0106] like Figure 12.1 and Figure 12.2 As shown, radial fluctuation and tangential fluctuation are constructed at the same time. Specifically, the radial profile polynomial of the surface type is constructed by selecting a 6th-order polynomial, and the tangential fluctuation needs to be controlled to produce 8 fluctuation cycles, that is, T2 is π / 2, θ0 is 0 in this embodiment, and d=1.52mm. Specifically, the constructed microstructure surface type is as follows Figure 12.1 and Figure 12.2 As shown in the figure, the radial direction of the unit is deformed by a polynomial function, which is the same as the surface type that only constructs radial fluctuations. The radial direction has 4 fluctuation periods. The tangential direction of the unit changes in sections according to the law of the sine function, and the tangential direction of the unit has 8 fluctuation periods. In addition, as Fig.13 As shown, regular or irregular eccentric structures can also be introduced into the microstructure surface to form more random high-frequency disturbances.

[0107] like Figure 14.1 and Figure 14.2 As shown, radial fluctuation and tangential fluctuation are constructed at the same time. Specifically, the radial profile polynomial of the surface type is constructed by selecting a 5th-order polynomial, T2 in the tangential fluctuation is 2π, θ0 in this embodiment is 0, and d=1.52mm. Specifically, the constructed microstructure surface type is as follows Figure 14.1 and Figure 14.2 As shown in the figure, the radial direction of the unit is deformed by a polynomial function, and the tangential direction of the unit changes in sections according to the law of a sine function. The radial / tangential direction has a 4 / 2 fluctuation cycle, which can introduce high-frequency disturbances in the tangential and radial directions at the same time. In addition, Fig.15 As shown, regular or irregular eccentric structures can also be introduced into the microstructure surface to form more random high-frequency disturbances.

[0108] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An optical lens with high-frequency disturbance information, characterized in that: The optical lens comprises: a basic surface area and a high-frequency control area, The center of the basic surface shape area coincides with the center of the optical lens, and the surface shape of the optical lens located in the basic surface shape area is used to form a clear visual imaging; The high-frequency control area is arranged around the outer periphery of the basic surface area, and the high-frequency control area includes a plurality of high-frequency lens units, which are arranged closely adjacent to each other. The ratio of the intensity of the high-frequency signal generated by the optical lens surface in the high-frequency control area to the intensity of all signals generated by the optical lens surface in the high-frequency control area is greater than the high-frequency proportion threshold; the intensity of the signal is the signal component represented by each frequency domain point after the optical lens surface in the high-frequency control area is subjected to a two-dimensional Fourier transform, and the size of the modulus of the corresponding imaginary number; the high-frequency signal is a signal whose spatial frequency is higher than the frequency limit; the value range of the frequency limit is [0.2 mm -1 , 5 mm -1 ]; The surface of each high-frequency lens unit has a surface structure with at least two height fluctuation periods in at least one direction of the unit radial direction or the unit tangential direction; each pair of wave crests and wave troughs in the surface structure is one of the height fluctuation periods; in the height direction of the surface structure, the local maximum is the wave crest, and the local minimum is the wave trough; the unit tangential direction is the circumferential direction of the high-frequency lens unit, and the unit radial direction is any diameter direction of the high-frequency lens unit.

2. The optical lens with high-frequency disturbance information according to claim 1, characterized in that: The surface center of the microstructure in the high-frequency lens unit is located at the geometric center of the high-frequency lens unit, or the surface center of the microstructure in the high-frequency lens unit is offset relative to the geometric center of the high-frequency lens unit; The eccentricity vector and V of each high-frequency lens unit in any eccentric area satisfy the following conditions: ； ； Wherein, │V│ is the modulus of V; Vi is the eccentric vector of the i-th microstructure surface in the eccentric area, which points from the geometric center of the high-frequency lens unit to the center of the microstructure surface after the high-frequency lens unit is offset; n is the number of complete high-frequency lens units in the eccentric area, n≥2; a<0.2nR, and R is the radius of the circumscribed circle of the high-frequency lens unit.

3. The optical lens with high-frequency disturbance information according to claim 2, characterized in that: The height Z(r) of any point in the surface structure of the high-frequency lens unit satisfies the following conditions: ； Wherein, r is the projection distance between the current point and the center of the microstructure surface; r0 is the length from the center of the microstructure surface to the boundary of the corresponding microstructure surface on the radial section where the current point is located, and the shape formed by all radial sections in the microstructure surface is a regular polygon; A1 is the microstructure amplitude; T1 is the normalized period, T1∈(0,1).

4. The optical lens with high-frequency disturbance information according to claim 3, characterized in that: The regular polygon is a regular triangle, a square or a regular hexagon.

5. The optical lens with high-frequency disturbance information according to claim 2, characterized in that: The height Z1(r) of any point in the surface structure of the high-frequency lens unit that is at a distance r from the center of the microstructure surface meets the following conditions: ； Among them, r is the projection distance between the current point and the center of the microstructure surface; d is the diameter of the circumscribed circle of the microstructure surface; α j is the coefficient of the jth order term of the radial profile polynomial of the microstructure surface, and w is the degree of the highest order term of the radial profile polynomial of the microstructure surface.

6. The optical lens with high-frequency disturbance information according to claim 2, characterized in that: With the center of the microstructure surface as the origin and the horizontal positive direction as the reference axis, the height Z2(θ) of each point on the radial section forming an angle θ with the reference axis in the surface structure of the high-frequency lens unit satisfies the following conditions: ； Among them, A2 is the tangential amplitude of the microstructure; T2 is the angular period, the value of T2 is the angle value, and θ0 is the adjustment phase.

7. The optical lens with high-frequency disturbance information according to claim 2, characterized in that: The height of any point in the surface structure of the high-frequency lens unit is generated by fusing the height of the radially fluctuating surface and the height of the tangentially fluctuating surface; The height Z1(r) of the radial wave profile satisfies the following conditions: ； Among them, r is the projection distance between the current point and the center of the microstructure surface; d is the diameter of the circumscribed circle of the microstructure surface; α j is the coefficient of the jth order term of the radial profile polynomial of the microstructure surface, and w is the degree of the highest order term of the radial profile polynomial of the microstructure surface; The height of the tangential wave profile meets the following conditions: With the center of the microstructure surface as the origin and the horizontal positive direction as the reference axis, the height Z2(θ) of each point on the radial section forming an angle θ with the reference axis in the surface structure of the high-frequency lens unit satisfies the following conditions: ； Among them, A2 is the tangential amplitude of the microstructure; T2 is the angular period, the value of T2 is the angle value, and θ0 is the adjustment phase.

8. The optical lens with high-frequency disturbance information according to claim 1, characterized in that: The frequency limit is 1 mm -1 .

9. The optical lens with high-frequency disturbance information according to claim 1, characterized in that: The outer edge of the high-frequency lens unit is a regular polygon structure, and the regular polygon is a regular triangle, a square, or a regular hexagon.

10. The optical lens with high-frequency disturbance information according to claim 1, characterized in that: The value range of the high frequency ratio threshold is [0.7, 0.8].

11. The optical lens with high-frequency disturbance information according to claim 7, characterized in that: The high frequency ratio threshold value is set to 0.

8.

12. The optical lens with high-frequency disturbance information according to claim 1, characterized in that: The basic surface shape area is circular or polygonal, the area of ​​the basic surface shape area is greater than or equal to the area of ​​the corresponding projection area of ​​the normal scanning field of the human eye on the optical lens, and the surface shape of the optical lens in the basic surface shape area is spherical or aspherical.

13. The optical lens with high-frequency disturbance information according to claim 9, characterized in that: If the basic surface area is circular, the value range of the diameter of the basic surface area is [2mm, 12mm].

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