Optical element for human eye imaging, add power generation method, medium, and device

Abstract

The present invention relates to the field of optical elements, and in particular to an optical element for human eye imaging, an add power generation method, a medium, and a device. An auxiliary optical adjustment area is provided on the front surface or the rear surface of the optical element. The auxiliary optical adjustment area comprises at least one micro-adjustment curved surface that continuously and periodically varies in a certain direction. The add power of the micro-adjustment curved surface continuously varies between positive and negative values within one variation cycle. The planar projection length of the micro-adjustment curved surface within one variation cycle is less than or equal to the diameter of a unit eyebox. In the solution of the present invention, the micro-adjustment curved surface within one cycle comprises a structure capable of simultaneously adjusting far, intermediate, and near vision, so that a combination of positive add power and negative add power is present within any unit eyebox of a lens. On the basis of the concept of "simultaneous vision", any position on the lens can provide a global clear field of view across far, intermediate, and near distances. In addition, the micro-adjustment curved surface is distributed across the entire visual range of the lens, allowing the field of view to be unrestricted by a gaze direction.

Description

Optical element for human eye imaging, auxiliary power generation method, medium and device TECHNICAL FIELD

[0001] The present application relates to the field of optical elements, in particular to an optical element for human eye imaging, an auxiliary power generation method, a medium and a device. BACKGROUND

[0002] The accommodation ability of the human eye gradually weakens with age, and at a certain degree, clear vision at all distances cannot be guaranteed by the human eye itself. In recent years, the popularity of electronic devices and changes in people's eye habits have further exacerbated this trend. Corresponding functional optical elements are products used to compensate for the lack of accommodation ability of the corresponding type.

[0003] Among them, middle-aged people with good accommodation ability can clearly see near and far places by adjusting themselves, but long-term and frequent adjustment can easily cause eye fatigue, so additional power of the lens can be used to assist adjustment and reduce the burden on the eye. The elderly who have developed presbyopia and other symptoms have insufficient accommodation ability of the eye itself, and it is difficult to rely on themselves to obtain clear vision at all distances, so they need to rely on the auxiliary adjustment of the lens to make up for the lack of accommodation ability of the eye itself.

[0004] Currently, the following plus light bifocal design and progressive multifocal free-form surface structure design are mainly used in the design of these functional optical elements. However, these structure designs can only obtain a clear field of view at a certain distance through a specific area of the optical element. There are problems such as the inability to obtain clear vision at near and far distances at the same time and the limitation of the direction of gaze. SUMMARY

[0005] To solve the above technical problems, the technical scheme adopted by the present application is as follows:

[0006] According to one aspect of the present application, an optical element for human eye imaging is provided, which is provided with an auxiliary optical adjustment area on the front surface or the rear surface of the optical element, for adjusting the convergence degree of light entering the human eye;

[0007] The auxiliary optical adjustment area includes at least one micro-adjustment surface continuously and periodically changing in a certain direction; the auxiliary power of the micro-adjustment surface in a change period continuously changes between positive and negative; the auxiliary power is the difference between the power of a point of the optical element and the prescribed power;

[0008] The planar projection length of the micro-adjustment surface in a change period is less than or equal to the unit window diameter; the unit window diameter is the length of the diameter of the pupil mapped on the optical element when the user uses the optical element for human eye imaging.

[0009] Further, the auxiliary power of the fine adjustment surface in a variation cycle continuously varies between positive and negative according to a sinusoidal variation law.

[0010] Further, the auxiliary optical adjustment region comprises two fine adjustment surfaces respectively arranged along two mutually intersecting directions.

[0011] The auxiliary power at any position in the auxiliary optical adjustment region is the interference superposition value, maximum value, minimum value, mean value or product of the auxiliary power of the two fine adjustment surfaces arranged orthogically at the position.

[0012] Further, the auxiliary optical adjustment region comprises a fine adjustment surface arranged radially from the center to the outside.

[0013] Further, the auxiliary optical adjustment region further comprises a fine adjustment surface arranged circumferentially.

[0014] The auxiliary power at any position in the auxiliary optical adjustment region is the interference superposition value, maximum value, minimum value, mean value or product of the auxiliary power of the fine adjustment surface arranged radially and the fine adjustment surface arranged circumferentially at the position.

[0015] Further, the auxiliary power of the fine adjustment surface in a variation cycle continuously varies between positive and negative according to a helical sinusoidal variation law; the helical sinusoidal is the cross superposition of helical variation and sinusoidal variation.

[0016] The auxiliary optical adjustment region comprises a plurality of fine adjustment surfaces arranged in rotation along the circumference; a first spiral distributed corrugated surface structure is formed with the center of the auxiliary optical adjustment region as the spiral center.

[0017] Further, the auxiliary optical adjustment region further comprises a second corrugated surface structure, the second corrugated surface structure comprises a fine adjustment surface arranged radially from the center of the auxiliary optical adjustment region to the outside, and the auxiliary power of the fine adjustment surface in a variation cycle continuously varies between positive and negative according to a sinusoidal variation law.

[0018] The auxiliary power at any position in the auxiliary optical adjustment region is the interference superposition value, maximum value, minimum value, mean value or product of the auxiliary power of the first corrugated surface structure and the second corrugated surface structure at the position.

[0019] Further, the optical element comprises a contact lens and a frame lens.

[0020] Further, the auxiliary optical adjustment region comprises two fine adjustment surfaces respectively arranged along two orthogonal directions.

[0021] Further, the auxiliary optical adjustment area is distributed in a target area on the front surface or the back surface of the optical substrate to be processed, and the target area is a circular or annular area with the geometric center of the optical substrate to be processed as the center and R1 and R2 as the radii; the target area is used to cover the normal scanning range of the human eye when wearing the optical element. The optical substrate to be processed can be a lens substrate to be processed for manufacturing a frame lens or a lens substrate to be processed for manufacturing a contact lens.

[0022] Further, R1∈[0mm, 2mm], R2∈[3mm, 6mm] or R1∈[0mm, 5mm], R2∈[10mm, 30mm].

[0023] Further, the auxiliary power of the fine adjustment surface in a variation period continuously varies between positive and negative according to a trapezoidal square wave.

[0024] According to a second aspect of the present application, an auxiliary power generation method of an optical element is provided for generating the auxiliary power of the fine adjustment surface in a variation period of an optical element as described above;

[0025] The method comprises the following steps:

[0026] According to the use of the optical element by the user, an adjustment offset b is generated;

[0027] According to b, the auxiliary power ADD of the fine adjustment surface in a variation period is generated end ; ADD end The following conditions are met:

[0028] Wherein, T is the period length of the fine adjustment surface in a variation period, 0.2d≤T≤1d; d is the unit window diameter; d meets the following condition: d=h×(i+g) / g; h is the pupil diameter of the user; i is the distance between the lens and the eyeball when the user wears glasses made of the optical element; g is the eye axis length; S is the distance from a point on the fine adjustment surface in a variation period to the starting point of the period; A is the auxiliary adjustment amplitude.

[0029] Further, according to the use of the optical element by the user, an adjustment offset b is generated, comprising:

[0030] If the use scenario of the optical element by the user is single, b is generated according to the following method:

[0031] According to the most commonly used eye distance L of the user, an accommodation demand E is generated;

[0032] According to E and the age N of the user, an accommodation offset b is generated; b meets the following condition: b=E-(15-0.25N) / 2;

[0033] wherein E = 1 / L; if E-(15-0.25N) / 2<0, then b = 0.

[0034] Further, the adjustment offset b is generated according to the use of the optical element by the user, including:

[0035] If the use scenarios of the optical element by the user are multiple, then b satisfies the following condition: b = t1 x b 近 / (t1+t2+t3)+t2 x b 中 / (t1+t2+t3)+t3 x b 远 / (t1+t2+t3)

[0036] wherein t1 is the total daily time length of the use of the optical element by the user in the eye use scenario in which the eye use distance L satisfies L < 50 cm, b 近 is the adjustment offset corresponding to the most frequently used eye use distance in the eye use scenario in which the eye use distance L satisfies L < 50 cm by the user; t2 is the total daily time length of the use of the optical element by the user in the eye use scenario in which the eye use distance L satisfies 50 cm≤L≤75 cm, b 中 is the adjustment offset corresponding to the most frequently used eye use distance in the eye use scenario in which the eye use distance L satisfies 50 cm≤L≤75 cm by the user; t3 is the total daily time length of the use of the optical element by the user in the eye use scenario in which L > 75 cm, b 远 is the adjustment offset corresponding to the most frequently used eye use distance in the eye use scenario in which L > 75 cm by the user, and b 远 = 0.

[0037] Further, A is generated according to the following method:

[0038] The limit adjustment demand E 近 is generated according to the use of the optical element by the user.

[0039] The auxiliary adjustment amplitude A is generated according to E 近 and the age N of the user; A satisfies the following condition: A = E 近 -(15-0.25N) / 2.

[0040] wherein E 近 = 1 / L 近 , L 近 is the nearest eye use distance corresponding to the eye use scenario in which the optical element is used by the user, and the unit is m.

[0041] According to a third aspect of the present application, a non-transitory computer readable storage medium is provided, which stores a computer program, and the computer program is executed by a processor to implement the above-mentioned auxiliary power generation method of an optical element.

[0042] According to a fourth aspect of the present application, there is provided an electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, the processor implementing the above-mentioned method for generating auxiliary power of an optical element when executing the computer program.

[0043] The present application has at least the following beneficial effects:

[0044] In the scheme of the present application, at least one continuously and periodically varying micro-adjustment surface is arranged in the auxiliary optical adjustment area, and the auxiliary power of the micro-adjustment surface in one variation period continuously varies between positive and negative. At the same time, the planar projection length of the micro-adjustment surface in one variation period is less than or equal to the diameter of a unit viewing window. Thus, it can be ensured that in any unit viewing window of the lens where the human eye is gazing, at least one micro-adjustment surface in one variation period is included. Since the auxiliary power of the micro-adjustment surface in one variation period continuously varies between positive and negative, the micro-adjustment surface in one period includes structures that can simultaneously adjust far, intermediate and near light. Further, in any unit viewing window in the auxiliary optical adjustment area of the lens, there is a combination of positive and negative auxiliary power. According to the concept of "simultaneous vision", far, intermediate and near objects at different distances can be simultaneously entered into the eye through the lens and the refractive system of the eye and imaged on the retina, thereby ensuring that a global clear field of view for far, intermediate and near can be obtained through the lens.

[0045] At the same time, such micro-adjustment surfaces are distributed throughout the wearer's visual range, so that a global clear field of view for far, intermediate and near can be obtained in any unit viewing window in the lens, making the field of view not limited by the gazing direction. BRIEF DESCRIPTION OF DRAWINGS

[0046] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0047] Fig. 1 is a schematic diagram of the auxiliary power plane of an optical element according to an embodiment of the present application;

[0048] Fig. 2 is an enlarged schematic diagram of a unit viewing window at A in Fig. 1 and a schematic diagram of the probability density distribution of the auxiliary power in the auxiliary optical adjustment area;

[0049] Figure 3 is a detailed illustration of the lens power profile in the face-form structure of Example 1, including a planar profile of the power in the lens (upper left in the figure), a two-dimensional plot of the power in a unit window (upper right in the figure), a three-dimensional plot of the power in a unit window (lower right in the figure), and a probability density profile of the power in the auxiliary optical zone (lower left in the figure);

[0050] Figure 4 is a detailed illustration of the lens power profile in the face-form structure of Example 2, including a planar profile of the power in the lens (upper left in the figure), a two-dimensional plot of the power in a unit window (upper right in the figure), a three-dimensional plot of the power in a unit window (lower right in the figure), and a probability density profile of the power in the auxiliary optical zone (lower left in the figure);

[0051] Figure 5 is a detailed illustration of the lens power profile in the face-form structure of Example 3, including a planar profile of the power in the lens (upper left in the figure), a two-dimensional plot of the power in a unit window (upper right in the figure), a three-dimensional plot of the power in a unit window (lower right in the figure), and a probability density profile of the power in the auxiliary optical zone (lower left in the figure);

[0052] Figure 6 is a detailed illustration of the lens power profile in the face-form structure of Example 4, including a planar profile of the power in the lens (upper left in the figure), a two-dimensional plot of the power in a unit window (upper right in the figure), a three-dimensional plot of the power in a unit window (lower right in the figure), and a probability density profile of the power in the auxiliary optical zone (lower left in the figure);

[0053] Figure 7 is a detailed illustration of the lens power profile in the face-form structure of Example 5, including a planar profile of the power in the lens (upper left in the figure), a two-dimensional plot of the power in a unit window (upper right in the figure), a three-dimensional plot of the power in a unit window (lower right in the figure), and a probability density profile of the power in the auxiliary optical zone (lower left in the figure);

[0054] Figure 8 is a detailed illustration of the lens power profile in the face-form structure of Example 6, including a planar profile of the power in the lens (upper left in the figure), a two-dimensional plot of the power in a unit window (upper right in the figure), a three-dimensional plot of the power in a unit window (lower right in the figure), and a probability density profile of the power in the auxiliary optical zone (lower left in the figure);

[0055] Figure 9 is a detailed view of the distribution of the auxiliary power of the lens in the surface structure of Example 7, which includes a schematic view of the planar distribution of the auxiliary power in the lens (upper left in the figure), a two-dimensional graph of the auxiliary power in a unit window (upper right in the figure), a three-dimensional graph of the auxiliary power in a unit window (lower right in the figure), and a schematic view of the probability density distribution of the auxiliary power in the auxiliary optical adjustment region (lower left in the figure);

[0056] Figure 10 is a detailed view of the distribution of the auxiliary power of the lens in the surface structure of Example 8, which includes a schematic view of the planar distribution of the auxiliary power in the lens (upper left in the figure), a two-dimensional graph of the auxiliary power in a unit window (upper right in the figure), a three-dimensional graph of the auxiliary power in a unit window (lower right in the figure), and a schematic view of the probability density distribution of the auxiliary power in the auxiliary optical adjustment region (lower left in the figure);

[0057] Figure 11 is a detailed view of the distribution of the auxiliary power of the lens in the surface structure of Example 9, which includes a schematic view of the planar distribution of the auxiliary power in the lens (upper left in the figure), a two-dimensional graph of the auxiliary power in a unit window (upper right in the figure), a three-dimensional graph of the auxiliary power in a unit window (lower right in the figure), and a schematic view of the probability density distribution of the auxiliary power in the auxiliary optical adjustment region (lower left in the figure);

[0058] Figure 12 is a detailed view of the distribution of the auxiliary power of the lens in the surface structure of Example 10, which includes a schematic view of the planar distribution of the auxiliary power in the lens (upper left in the figure), a two-dimensional graph of the auxiliary power in a unit window (upper right in the figure), a three-dimensional graph of the auxiliary power in a unit window (lower right in the figure), and a schematic view of the probability density distribution of the auxiliary power in the auxiliary optical adjustment region (lower left in the figure);

[0059] Figure 13 is a detailed view of the distribution of the auxiliary power of the lens in the surface structure of Example 11, which includes a schematic view of the planar distribution of the auxiliary power in the lens (upper left in the figure), a two-dimensional graph of the auxiliary power in a unit window (upper right in the figure), a three-dimensional graph of the auxiliary power in a unit window (lower right in the figure), and a schematic view of the probability density distribution of the auxiliary power in the auxiliary optical adjustment region (lower left in the figure);

[0060] Figure 14 is a two-dimensional graph of the auxiliary power in a unit window, a three-dimensional graph of the auxiliary power in a unit window, and a schematic view of the probability density distribution of the auxiliary power in the auxiliary optical adjustment region before and after adjustment of the distribution of the auxiliary power in the surface structure of Example 1 using an auxiliary power generation method for an optical element according to an embodiment of the present application;

[0061] Fig. 15 is a schematic diagram of the auxiliary power distribution in a unit window after forward adjustment, a three-dimensional diagram of the auxiliary power in a unit window, and a schematic diagram of the probability density distribution of the auxiliary power in the auxiliary optical adjustment area before and after adjustment, using an auxiliary power generation method of an optical element according to an embodiment of the present application;

[0062] Fig. 16 is a schematic diagram of the auxiliary power distribution of a gradient adjustment from top to bottom with gradually increasing forward adjustment amount, including a schematic diagram of the auxiliary power plane of the optical element, a two-dimensional diagram of the auxiliary power in a unit window at the center and below, and a schematic diagram of the probability density distribution of the auxiliary power, using an auxiliary power generation method of an optical element according to an embodiment of the present application;

[0063] Fig. 17 is a schematic diagram of the continuous variation of the auxiliary power between positive and negative according to the trapezoidal square wave form of variation according to an embodiment of the present application;

[0064] Fig. 18 is a schematic diagram of the auxiliary power distribution of the lens in the surface structure embodiment 12, including a schematic diagram of the auxiliary power plane in the lens (positioned at the top left in the figure), a two-dimensional diagram of the auxiliary power in a unit window (positioned at the top right in the figure), a three-dimensional diagram of the auxiliary power in a unit window (positioned at the bottom right in the figure), and a schematic diagram of the probability density distribution of the auxiliary power in the auxiliary optical adjustment area (positioned at the bottom left in the figure);

[0065] Fig. 19 is a flowchart of an auxiliary power generation method of an optical element according to an embodiment of the present application.

[0066] Reference numeral 1, auxiliary optical adjustment area; 11, fine adjustment curved surface. DETAILED DESCRIPTION

[0067] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0068] As a possible embodiment of the present application, as shown in Fig. 1, an optical element for imaging the human eye is provided, and an auxiliary optical adjustment area 1 is arranged on the front surface or the rear surface of the optical element. Specifically, the optical element includes a contact lens and a frame lens. The auxiliary optical adjustment area 1 needs to completely cover the normal visual range of the lens wearer's eyeball on the lens. For example, the auxiliary optical adjustment area 1 can be a central region spreading outward from the center on the optical substrate to be processed, which is larger than the visual range of the wearer.

[0069] Specifically, the auxiliary optical adjustment area is distributed in a target area on the front surface or the back surface of the optical substrate to be processed, and the target area is a circular area with a certain preset radius and a center at the geometric center of the optical substrate to be processed or an annular area enclosed between two concentric circles with radii R1 and R2. The target area is used to cover the normal scanning range of the human eye when wearing the optical element, so that the fine adjustment surface 11 in the target area can be used to assist the optical adjustment of the human eye.

[0070] Preferably, when the optical element is a lens corresponding to a frame lens, R1 ∈ [0mm, 5mm] and R2 ∈ [10mm, 30mm].

[0071] When the optical element is a lens corresponding to a contact lens, R1 ∈ [0mm, 2mm] and R2 ∈ [3mm, 6mm].

[0072] R1 and R2 define the distribution range of the auxiliary optical adjustment area (i.e. the target area). When wearing the optical element of the present application, the value of R2 generally needs to ensure that the auxiliary optical adjustment area of the optical element can cover the normal scanning range of the human eye. Considering the differences in eye habits of the population, R2 can be selected according to the above range. When R1 is 0, the auxiliary optical adjustment area is a circular area, which can completely cover the normal scanning range of the wearer, ensuring the consistency and uniformity of the auxiliary adjustment effect. When R1 is not zero, the auxiliary optical adjustment area is an annular area, the area within the radius R1 can improve the visual clarity of the human eye, and the area within the radius R1 to R2 can maintain the auxiliary adjustment effect.

[0073] The auxiliary optical adjustment area 1 includes at least one fine adjustment surface 11 that continuously and periodically changes in a certain direction. The auxiliary power of the fine adjustment surface 11 in one change period continuously changes between positive and negative. The auxiliary power is the difference between the power of a point on the lens and the prescription power of the lens. The prescription power of the lens is the customized parameter and refractive correction data of the glasses according to the doctor's or optician's recommendation.

[0074] Specifically, the change rule of the auxiliary power of the fine adjustment surface 11 in one change period, as shown in FIG. 2, can be in a sinusoidal change mode or other existing fluctuation change mode. This change rule can ensure that the fine adjustment surface 11 has a mixed auxiliary power of positive and negative on the basis of the prescription power of the lens in one change period, and then can respectively diverge and converge the light rays of different distances. According to the concept of "simultaneous vision", the glasses made of the optical element in this embodiment can make objects of different distances enter the eye at the same time through the lens and the refractive system of the eye, and form images on the retina at the same time, thereby ensuring that a clear overall field of view of far, middle and near can be obtained through the lens.

[0075] The length of the micro-adjustment surface 11 in a variation period is less than or equal to the unit window diameter. The unit window is a circular area on the lens where the pupil is mapped after the user wears the glasses made of optical elements.

[0076] Through the above setting, it can be ensured that when the wearer observes through different positions of the lens, there is at least one micro-adjustment surface 11 in a variation period in the corresponding unit window of the wearer, which can simultaneously refract the light of far and near distances to ensure that the field of view of the wearer is not limited by the direction of attention.

[0077] In the prior art, the design is basically zoned, that is, a certain area of the lens is only suitable for imaging of a specific distance object, thereby making the focal power difference between different areas of the lens larger, which also causes a larger difference in other optical parameters such as imaging magnification in the corresponding area, thereby causing the problem of discontinuous field switching. In addition, in order to make different focal powers in different areas of the lens, the surface shape of other areas of the lens is greatly damaged, thereby introducing a large imaging distortion in the imaging of other areas of the lens, that is, the "blind area" of the progressive multifocal lens.

[0078] The present application refines the zoned design of the traditional progressive multifocal lens into a combination of higher frequency periodic continuous micro-adjustment surfaces 11, thereby avoiding imaging distortion and ensuring the imaging uniformity of each position of the lens. Moreover, the present application is designed as a continuous high-frequency periodic micro-adjustment surface 11, and the focal power of each position is relatively uniform, and there is no imaging discontinuity problem caused by field switching.

[0079] The auxiliary focal power of the micro-adjustment surface 11 in a variation period can continuously change between positive and negative according to a sinusoidal or trapezoidal square wave variation law.

[0080] When the auxiliary focal power of the micro-adjustment surface 11 in a variation period continuously changes between positive and negative according to a sinusoidal variation law, and at least one micro-adjustment surface 11 is arranged in the horizontal direction and / or the vertical direction, the following various micro-adjustment surfaces 11 can be formed in the auxiliary optical adjustment area 1.

[0081] Specifically, the auxiliary optical adjustment area 1 includes two types of micro-adjustment surfaces 11 arranged along two mutually intersecting directions, that is, the two types of micro-adjustment surfaces 11 can be arranged at any angle in (0°, 180°).

[0082] Preferably, the auxiliary optical adjustment area 1 includes two types of micro-adjustment surfaces 11 arranged along two orthogonal directions (one of which is the horizontal direction and the other is the vertical direction). The two types of micro-adjustment surfaces 11 in the present application are two micro-adjustment surfaces 11 with different extension directions. Through the mutual combination of different forms of the two micro-adjustment surfaces, the following surface structures can be formed.

[0083] Surface profile structure embodiment 1:

[0084] As shown in Fig. 3, the auxiliary power at any position in the auxiliary optical adjustment area 1 is the average of the auxiliary power of the two micro-adjustment curves 11 arranged orthogonally at the position. Of course, if the auxiliary power range after superposition of the two micro-adjustment curves 11 is to be changed, A x and A y may be adjusted accordingly.

[0085] Specifically, the auxiliary power ADD in the surface profile structure in this embodiment satisfies the following condition: ADD = 0.5 x [A x sin(2πx / T x ) + A y sin(2πy / T y )]

[0086] wherein A x is the amplitude of the micro-adjustment curve 11 in the horizontal direction, T x is the period length of the micro-adjustment curve 11 in the horizontal direction; x is the horizontal coordinate value of a certain point on the micro-adjustment curve 11; A y is the amplitude of the micro-adjustment curve 11 in the vertical direction, T y is the period length of the micro-adjustment curve 11 in the vertical direction; y is the vertical coordinate value of a certain point on the micro-adjustment curve 11. In this embodiment, A x = A y = 1.

[0087] The auxiliary power in this embodiment varies as a uniform double-sine rule, the auxiliary power in a unit window is a central unimodal distribution, has balanced auxiliary adjustment effect, and the visual effect of the entire lens has good uniformity and consistency, and is easy to customize parameter control.

[0088] Surface profile structure embodiment 2:

[0089] As shown in Fig. 4, the auxiliary power at any position in the auxiliary optical adjustment area 1 is the minimum auxiliary power of the two micro-adjustment curves 11 arranged orthogonally at the position.

[0090] Specifically, the auxiliary power ADD in the surface profile structure in this embodiment satisfies the following condition: ADD = min[A x sin(2πx / T x ), A y sin(2πy / T y )]

[0091] For the adjustment surface shape in this embodiment, the overall shape has a rectangular array pyramid structure, while the negative auxiliary power unimodal distribution is retained, i.e. the auxiliary adjustment function when looking at distant scenes is strengthened. The auxiliary power of the lens varies uniformly in the auxiliary optical adjustment region, and has good global visual consistency.

[0092] Surface shape embodiment 3:

[0093] As shown in FIG. 5, the auxiliary power at any position in the auxiliary optical adjustment region 1 is the maximum value of the auxiliary power of the two orthogonally arranged fine adjustment surfaces 11 at the position.

[0094] Specifically, the auxiliary power ADD in the surface shape in this embodiment satisfies the following condition: ADD = max [A x sin (2πx / T x ), A y sin (2πy / T y )]

[0095] For the adjustment surface shape in this embodiment, the pyramid shape in surface shape embodiment 2 is changed to a concave hill shape, so that the negative auxiliary power unimodal distribution in surface shape embodiment 2 becomes a positive auxiliary power unimodal distribution, i.e. the auxiliary adjustment function when looking at close scenes is strengthened.

[0096] When the auxiliary power of the fine adjustment surface 11 in a change period continuously changes between positive and negative according to a sinusoidal change rule, and at least one fine adjustment surface 11 is arranged in the radial direction and / or the axial direction, the following various fine adjustment surfaces 11 can be formed in the auxiliary optical adjustment region 1.

[0097] Surface shape embodiment 4:

[0098] Specifically, as shown in FIG. 6, when the auxiliary optical adjustment region 1 includes only one fine adjustment surface 11 arranged radially from the center to the outside, the auxiliary power ADD in the surface shape in this embodiment satisfies the following condition: x = r cos θ y = r sin θ ADD = A c sin (2πr / T) θ ∈ [0, 2π), r ∈ [0, R)

[0099] where A c is the first amplitude, T is the period length, r is the distance between a certain point on the fine adjustment surface 11 and the center, θ is the included angle between the line connecting a certain point on the fine adjustment surface 11 and the center and the positive horizontal direction, and R is the maximum radius of the auxiliary optical adjustment region 1.

[0100] For the adjustment surface type in the embodiment, the radial auxiliary focal power is sinusoidal periodicity, the auxiliary focal power is positive and negative bimodal distribution, and has strong bidirectional auxiliary adjustment effect. That is, the surface structure in the embodiment can have better adjustment effect on distant objects and close objects at the same time, and is more suitable for users who need to frequently switch between viewing distant and close objects, thereby reducing the adjustment reaction required by the human eye when switching between viewing distant and close objects.

[0101] In addition, when the auxiliary optical adjustment region 1 simultaneously includes a fine adjustment curved surface 11 arranged along the radial direction from the center to the outside and a fine adjustment curved surface 11 arranged along the circumferential direction, the following surface structures can be formed by the mutual superposition of different forms of the two fine adjustment curved surfaces. In the present application, if the calculation expression corresponding to the auxiliary focal power ADD and θ is related to the change relationship in the circumferential direction, and if the calculation expression corresponding to the auxiliary focal power ADD and r is related to the change relationship in the radial direction.

[0102] Surface structure embodiment 5:

[0103] As shown in FIG. 7, the auxiliary focal power of any position in the auxiliary optical adjustment region 1 is the average of the auxiliary focal power of the fine adjustment curved surface 11 arranged along the radial direction and the fine adjustment curved surface 11 arranged along the circumferential direction at the position.

[0104] Specifically, the auxiliary focal power ADD in the surface structure in the embodiment satisfies the following conditions: x = r cos θ y = r sin θ ADD = 0.5 × [A r sin(2πr / T r )+A t sin(2πθ / T t )] θ∈[0,2π), r∈[0,R), 2π / T t = n (n∈N + )

[0105] Where A r is the radial amplitude, T r is the radial period length; A t is the tangential amplitude, T t is the tangential period angle, and N + is a positive integer.

[0106] For the adjustment surface type in the embodiment, on the basis of the surface structure embodiment 4, the circumferential auxiliary focal power sinusoidal variation is introduced, and the distribution is changed to a unimodal form, which retains the auxiliary adjustment effect while strengthening the prescription vision.

[0107] Surface structure embodiment 6:

[0108] As shown in FIG8 , the auxiliary focal length at any position in the auxiliary optical adjustment area 1 is the product of the auxiliary focal length of the fine-adjustment curved surface 11 arranged in the radial direction and the auxiliary focal length of the fine-adjustment curved surface 11 arranged in the circumferential direction at that position.

[0109] Specifically, the auxiliary focal power ADD in the surface structure of this embodiment satisfies the following conditions: x = r·cosθ y = r·sinθ ADD = [A r sin(2πr / T r )]·[A t sin(2πθ / T t )] θ∈[0,2π), r∈[0,R), 2π / T t =n(n∈N + )

[0110] For the adjustable face shape in this embodiment, the auxiliary power distribution is essentially the same as that in face shape structure embodiment 5, but the peaks and valleys within the unit window appear adjacent to each other, while in face shape structure embodiment 5, they appear diagonally adjacent. This arrangement helps improve visual imaging contrast because the peaks and valleys appear closer together.

[0111] Surface structure embodiment 7:

[0112] As shown in FIG9 , the auxiliary focal length at any position in the auxiliary optical adjustment area 1 is the minimum value of the auxiliary focal lengths of the radially arranged fine-adjustment curved surface 11 and the circumferentially arranged fine-adjustment curved surface 11 at that position.

[0113] Specifically, the auxiliary focal power ADD in the surface structure of this embodiment satisfies the following conditions: x = r·cosθ y = r·sinθ ADD = min[A r sin(2πr / T r ),A t sin(2πθ / T t )] θ∈[0,2π), r∈[0,R), 2π / T t =n(n∈N + )

[0114] For the adjustment face shape in this embodiment, the double-sinusoidal shape in face structure embodiment 5 is changed to a pyramid shape, so that the auxiliary focal length becomes a single-peak distribution form of auxiliary adjustment that is biased towards negative, that is, the auxiliary adjustment when looking far away is enhanced.

[0115] Surface structure embodiment 8:

[0116] As shown in FIG10 , the auxiliary focal length at any position in the auxiliary optical adjustment area 1 is the maximum value of the auxiliary focal lengths of the radially arranged fine-adjustment curved surface 11 and the circumferentially arranged fine-adjustment curved surface 11 at that position.

[0117] Specifically, the ADD in the surface structure in this embodiment satisfies the following condition: x=r*cosθ y=r*sinθ ADD=max[A r sin(2πr / T r ),A t sin(2πθ / T t )] θ∈[0,2π),r∈[0,R),2π / T t =n(n∈N + )

[0118] For the adjustment surface in this embodiment, the pyramid shape in the surface structure in Embodiment 7 is changed to a concave hill shape, so that the negative unimodal distribution in the surface structure in Embodiment 7 becomes a positive unimodal distribution, that is, the auxiliary adjustment when looking near is strengthened.

[0119] Surface structure Embodiment 9:

[0120] As shown in FIG. 11, the auxiliary power of the fine adjustment surface 11 in a change period continuously changes between positive and negative according to the variation rule of helical sine. The helical sine is the cross superposition of helical variation and sine variation.

[0121] And the auxiliary optical adjustment area 1 includes a plurality of fine adjustment surfaces 11 distributed in the circumferential rotation. A helical distributed first corrugated surface structure is formed with the center of the auxiliary optical adjustment area 1 as the spiral center.

[0122] Specifically, the first corrugated surface structure in this embodiment can be generated according to the following steps:

[0123] 1. Generate a reference two-dimensional spiral line, and the auxiliary power on the spiral line is 0. Specifically, the shape of the reference two-dimensional spiral line satisfies the following condition: r=a+b*θ x=r*cosθ y=r*sinθ r∈[0,R]

[0124] Wherein, the polar coordinates: r=a+b*θ is the equation of Archimedes spiral, and a and b are corresponding coefficients which are prior art and can be selected according to actual needs.

[0125] 2. Rotate the array based on the reference two-dimensional spiral line in the circumferential direction to form the first corrugated surface structure.

[0126] Wherein, the corresponding auxiliary power on the two-dimensional spiral line generated after the reference two-dimensional spiral line is rotated counterclockwise by β is also a unique value, and specifically, the auxiliary power ADD of the generated two-dimensional spiral line satisfies the following condition: ADD=A d sin(2πβ / T) β∈[0,2π),2π / T=n(n∈N + )

[0127] Wherein, Ad is a second amplitude.

[0128] For the adjustment surface type in this embodiment, the surface structure has a certain rotation direction. In actual use, two lenses with counterclockwise and clockwise rotation directions can be respectively configured for the two eyes of the wearer, and the left and right symmetrical lens auxiliary optical adjustment areas based thereon can compensate each other, and the binocular fusion has clearer vision.

[0129] Surface structure embodiment 10:

[0130] As shown in FIG. 12, on the basis of the surface structure embodiment 9, the auxiliary optical adjustment area 1 further includes a second corrugated surface structure, the second corrugated surface structure includes a fine adjustment surface 11 spreading from the center of the auxiliary optical adjustment area 1 to the outside in the radial direction, and the auxiliary power of the fine adjustment surface 11 in a change period in the second corrugated surface structure continuously changes between positive and negative according to a sinusoidal variation law.

[0131] The auxiliary power of any position in the auxiliary optical adjustment area 1 is the average of the auxiliary power of the first corrugated surface structure and the second corrugated surface structure at the position.

[0132] Specifically, the forming step of the auxiliary power in this embodiment is to add the following step 3 after the step of “rotating the array in the circumferential direction on the basis of the reference two-dimensional spiral to form the first corrugated surface structure” in the surface structure embodiment 9:

[0133] 3. The auxiliary power of the spiral after rotation β simultaneously changes with β and r in a double sinusoidal manner. Specifically, the auxiliary power ADD of the surface structure generated in this embodiment satisfies the following condition: ADD = 0.5 × [A r sin(2πr / T r )+A t sin(2πβ / T t )] β∈[0,2π), r∈[0,R], 2π / T t = n (n ∈ N + )

[0134] For the auxiliary power in this embodiment, on the basis of the surface structure embodiment 9, the periodic variation of the auxiliary power is introduced in the tangential direction of the annular zone, and the superposition of the periodic fluctuations in two directions is realized. The distribution is changed into a unimodal form, which retains the auxiliary adjustment effect while strengthening the prescription vision.

[0135] Surface structure embodiment 11:

[0136] As shown in Fig. 13, on the basis of the surface structure embodiment 9, a second corrugated curved surface structure is further included in the auxiliary optical adjustment area 1, the second corrugated curved surface structure includes the fine adjustment curved surfaces 11 spreading along the radial direction from the center of the auxiliary optical adjustment area 1 to the outside, and the auxiliary power of the fine adjustment curved surfaces 11 in a change period in the second corrugated curved surface structure continuously changes between positive and negative according to the sinusoidal variation law.

[0137] The auxiliary power at any position in the auxiliary optical adjustment area 1 is the product of the auxiliary power of the first corrugated curved surface structure and the auxiliary power of the second corrugated curved surface structure at the position.

[0138] Specifically, the forming step of the auxiliary power in the embodiment is to add the following step after the step of "rotating the array along the circumferential direction on the basis of the reference two-dimensional spiral to form the first corrugated curved surface structure" in the surface structure embodiment 9:

[0139] 3. The auxiliary power of the spiral after rotation β simultaneously varies according to the double sinusoidal variation of β and r. Specifically, the auxiliary power ADD of the surface structure generated in the embodiment satisfies the following condition: r ADD = [A r sin(2πr / T t )] × [A t sin(2πβ / T t )] β ∈ [0, 2π), r ∈ [0, R], 2π / T +

[0140] For the adjustment surface structure in the embodiment, on the basis of the surface structure embodiment 9, the periodic variation of the auxiliary power is introduced in the tangential direction of the annular zone to realize the superposition of the periodic fluctuations in two directions. And the auxiliary power after superposition moves as a whole to the negative auxiliary power direction, thereby the visual adjustment effect when looking at the distance can be strengthened.

[0141] As shown in Fig. 17, when the auxiliary power of the fine adjustment curved surfaces 11 in a change period continuously changes between positive and negative according to the trapezoidal square wave form variation law, and at least one fine adjustment curved surface 11 is arranged according to the horizontal direction and / or the vertical direction, a plurality of fine adjustment curved surfaces 11 can be formed in the auxiliary optical adjustment area 1.

[0142] Preferably, the auxiliary optical adjustment area 1 includes two types of fine adjustment curved surfaces 11 arranged along two mutually orthogonal directions (one is the horizontal direction and the other is the vertical direction) respectively. Through the mutual combination of different forms of the two fine adjustment curved surfaces, a plurality of surface structures of the distribution form of the auxiliary power can be formed.

[0143] Surface structure embodiment 12:

[0144] ​As shown in Fig. 18, the auxiliary power at any position in the auxiliary optical adjustment area 1 is the average of the auxiliary power of the two micro-adjustment curved surfaces 11 arranged orthogonally at the position. Of course, if the range of the auxiliary power after the superposition of the two micro-adjustment curved surfaces 11 is to be changed, A x and A y may be adjusted accordingly.

[0145] Specifically, the auxiliary power ADD in the surface structure in this embodiment satisfies the following condition: ADD = 0.5 x [ADD x + ADD y ]

[0146] wherein A F is the amplitude; T is the period; k1-k7 are the proportions of the nodes to the period T; ADD x is the auxiliary power in the x direction (horizontal direction), and ADD y is the auxiliary power in the y direction (vertical direction); and S is the distance from a point on the micro-adjustment curved surface in a change period to the starting point of the period.

[0147] This embodiment is different from the surface structure embodiment 1 in that the auxiliary power that varies along the x and y directions in a sinusoidal manner in the surface structure embodiment 1 is replaced by auxiliary power that varies in a trapezoidal square wave manner, as shown in Fig. 18, so that the auxiliary power in a unit window has multiple (5 in this case) distributed peaks. This trapezoidal rule can conveniently and flexibly adjust the number and position of the peaks and better maintain the visual uniformity and continuity of the entire lens.

[0148] For the case where the auxiliary power varies continuously between positive and negative according to the trapezoidal square wave variation rule, the number, extension direction, and values when interfering with each other of the trapezoidal square waves can be referred to the setting modes in the above-mentioned embodiments according to the sinusoidal variation rule. The only difference is the different auxiliary angle variation waveforms.

[0149] As another embodiment of the present application, as shown in Fig. 19, an auxiliary power generation method of an optical element is also provided for generating the auxiliary power of the micro-adjustment curved surface 11 in a change period in the above-mentioned optical element.

[0150] Generally, due to the different actual eye use scenes and different eye adjustment abilities of each wearer, the auxiliary power of the lens required by each wearer will be different. In this embodiment, the optical surface that is more suitable for the wearer is determined by adjusting the auxiliary adjustment amplitude A and the peak position of the probability density of the auxiliary power in a unit window.

[0151] Specifically, the method comprises the following steps:

[0152] S100: generating an accommodation offset b according to the use of the optical element by the user.

[0153] Specifically, b in S100 can be generated in the following manner:

[0154] S101: generating an accommodation requirement E according to the most frequently used eye distance of the user;

[0155] S102: generating an accommodation offset b according to E and the age N of the user; b satisfies the following condition: b = E - (15 - 0.25N) / 2;

[0156] wherein E = 1 / L, L is the most frequently used eye distance of the user, and the unit is m. If E - (15 - 0.25N) / 2 < 0, then b = 0.

[0157] S103: if the use scenario of the optical element by the user is multiple, then b satisfies the following condition: b = t1 x b 近 / (t1+t2+t3)+t2 x b 中 / (t1+t2+t3)+t3 x b 远 / (t1+t2+t3)

[0158] wherein t1 is the total daily time length of the use of the optical element by the user in the eye distance L scenario that satisfies L < 50 cm, b 近 is the accommodation offset corresponding to the most frequently used eye distance of the user in this distance range, such as b 近 = 1.125D when the user is 45 years old and the eye distance L = 33 cm. t2 is the total daily time length of the use of the optical element by the user in the eye distance L scenario that satisfies 50 cm ≤ L ≤ 75 cm, b 中 is the accommodation offset corresponding to the most frequently used eye distance of the user in this distance range, such as b 中 = 0.125D when the user is 45 years old and the eye distance L = 50 cm. t3 is the total daily time length of the use of the optical element by the user in the eye distance L scenario that satisfies L > 75 cm, b 远 is the accommodation offset corresponding to the most frequently used eye distance of the user in this distance range, and b 远 = 0.

[0159] Specifically, the adjustment of the auxiliary focal power probability density distribution is related to the eye use distance of the wearer. Generally, the closer the eye use distance, the more the distribution of the auxiliary focal power needs to be closer to the positive value interval. The eye use scene of L < 50 cm is a near distance eye use scene, including reading, looking at a mobile phone, etc.; the eye use scene of 50 cm ≤ L ≤ 75 cm is a medium distance eye use scene, including computer office work, general daily life (cooking, doing housework), recognizing faces, participating in social activities (playing card games), and shopping, etc.; the eye use scene of 75 cm < L is a long distance eye use scene, including driving and watching TV.

[0160] If the use scene of the optical element by the wearer is a single scene, the corresponding b can be generated according to the classification manner of S101-S102.

[0161] If the use scene of the optical element by the wearer is multiple scenes, the corresponding b can be generated according to the weighted summation manner in S103.

[0162] For example:

[0163] For example, if the time proportion of the far, medium, and near vision needs of the wearer in a day is 1:1:2, the corresponding auxiliary adjustment amounts of the peak values of the far, medium, and near are 0D, 0.125D, and 1.125D respectively, and the final peak value corresponding auxiliary adjustment amount is 0.125D.

[0164] In addition, the accommodation ability of the eye itself is related to the age. Generally, the older the age, the weaker the accommodation ability of the eye. Therefore, based on the age of the wearer and the corresponding eye use needs, the corresponding auxiliary adjustment amplitude A can be determined.

[0165] Specifically, A is generated according to the following method:

[0166] S201: generating a limit accommodation demand amount E according to the closest eye use distance required by the user 近 .

[0167] S202: generating an auxiliary accommodation amplitude A according to E 近 and the age N of the user. A satisfies the following condition: A = E 近 -(15-0.25N) / 2.

[0168] wherein E 近 = 1 / L 近 , L 近 is the closest eye use distance of the user in the eye use scene of using the optical element, in meters. That is, the closest eye use distance of the user in the near distance eye use scene for a long time to comfortably see the corresponding things. For most people, L 近 may be the minimum comfortable distance in the near distance reading eye use scene, and L 近The value of 0.25m-0.4m, preferably 0.33m.

[0169] L 近 The size of L is negatively correlated with the size of A, and A determines the distribution boundary value of the auxiliary diopter. Therefore, the value of L 近 can be adjusted according to the actual use scene and the user's personalized needs.

[0170] With the increase of age, the accommodation ability of the human eye will decrease. When the accommodation force used by the human eye when viewing near is less than half of the accommodation amplitude (i.e., the maximum accommodation ability), the person feels comfortable and can persist in staring. If the required accommodation force is greater than half of the accommodation amplitude, presbyopia symptoms may occur.

[0171] Therefore, the minimum accommodation amplitude corresponding to the age can be generated according to the age N. Here, the meaning of the minimum accommodation amplitude is that the maximum accommodation ability of the eyes of a certain age group has a distribution range. The minimum value is selected from the distribution, and the auxiliary accommodation amount calculated according to the minimum value can ensure that all people in the age group can see clearly.

[0172] The most commonly used empirical formula for accommodation amplitude in clinical practice is: minimum accommodation amplitude = 15-0.25xN.

[0173] For example, for a 45-year-old person, the corresponding minimum accommodation amplitude is 15-0.25x45=3.75D, and the accommodation force in the comfortable range is 3.75D / 2=1.875D. When the use scene is close reading (the use distance is 33cm), the required accommodation requirement E is 1 / 0.33≈3D, and thus the final required A is 3D-1.875D=1.125D, and the A corresponding to the wearer can be adjusted to 1.125D.

[0174] S200: generating an auxiliary power ADD of the micro-accommodation surface 11 in a change period according to b end The ADD end in the embodiment is actually an auxiliary power generated by corresponding adjustment on the original auxiliary power ADD meeting the relationship of Axs in(2TS / T). ADD end satisfies the following conditions:

[0175] Wherein, T is the period length of the micro-accommodation surface 11 in a change period, 0.2dT1d.

[0176] d is the unit window diameter. d satisfies the following condition: d=hx(i+g) / g. h is the pupil diameter of the user.

[0177] Different wearers have different pupil diameters, and the pupil diameter corresponds to the size of the unit window diameter, so there are also different sinusoidal periods. The pupil diameter of a person is 2-6 mm, the axial length of a normal adult is 24 mm, and the pupil diameter on the frame lens is 3-9 mm, assuming the mirror eye distance is 12 mm.

[0178] There is one or more sinusoidal periods (change periods) in the unit window, and the sinusoidal period length is related to the unit window diameter, that is, the pupil diameter. To ensure the stability of the auxiliary adjustment power probability density distribution and the visual effect of the unit window in any position of the lens, the change period length is equal to the unit window diameter, that is, there is at least one change period of the fine adjustment surface 11 in the unit window; if the sinusoidal period length is too small, the microstructure arrangement in the unit window is too dense, which will cause the coating of the finished lens to be difficult, so the maximum number of microstructure periods in the unit window is limited to 5.

[0179] i is the distance between the lens and the eyeball after the user wears the glasses made of the optical element. Specifically, the distance between the inner surface of the lens and the cornea, such as the corneal contact lens i = 0. g is the axial length. S is the distance from a point on the fine adjustment surface 11 in a change period to the start of the period. The distances defined by T and S in the present application are all generalized distances, which can be angle or length attributes in actual use. A is the auxiliary adjustment amplitude.

[0180] In this embodiment, by adjusting A, T and b, the face shape of the optical element can be more in line with the use requirements of the corresponding wearer, and the wearing comfort can be improved.

[0181] As shown in FIGS. 14 and 15, the auxiliary power probability density distribution of the face shape structure embodiment 1 is adjusted using an auxiliary power generation method of an optical element in this embodiment. Specifically, FIG. 14 shows that the original auxiliary power probability density distribution with the peak value in the middle is adjusted to the auxiliary power probability density distribution with the peak value moving to the negative auxiliary power side. FIG. 15 shows that the original auxiliary power probability density distribution with the peak value in the middle is adjusted to the auxiliary power probability density distribution with the peak value moving to the positive auxiliary power side. As shown in FIG. 16, after the peak value moves to the positive auxiliary power side, the auxiliary power distribution of the fine adjustment surface 11 in the auxiliary optical adjustment area 1 presents the characteristics that the local auxiliary power gradually increases from top to bottom in the vertical direction, that is, it is more and more positive. Thus, the continuous lens gradient design is realized by using the microstructure, such as the lens lower side having a more positive power, which is consistent with the near scene; the lens upper side has a more negative power, which is consistent with the far scene. The middle position of the lens basically maintains the original auxiliary power distribution. Further, the lens is suitable for near, middle and far viewing scenes from bottom to top.

[0182] Furthermore, although the steps of the method of the present disclosure are described in a particular order in the accompanying drawings, this does not require or imply that the steps must be performed in this particular order, or that all steps shown must be performed to achieve the desired results. Additionally or alternatively, some steps may be omitted, multiple steps may be combined into one step, and / or one step may be decomposed into multiple steps.

[0183] Through the description of the above embodiments, it is easy for those skilled in the art to understand that the example embodiments described herein can be implemented by software or by combining software with necessary hardware. Therefore, the technical solution according to the embodiments of the present disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which can be a personal computer, a server, a mobile terminal, or a network device, etc.) to execute the method according to the embodiments of the present disclosure.

[0184] In an exemplary embodiment of the present disclosure, an electronic device capable of implementing the above method is also provided.

[0185] Those skilled in the art will appreciate that various aspects of the present invention may be implemented as systems, methods, or program products. Therefore, various aspects of the present invention may be implemented in the following forms: a complete hardware implementation, a complete software implementation (including firmware, microcode, etc.), or a combination of hardware and software implementations, which may be collectively referred to herein as "circuits," "modules," or "systems."

[0186] The electronic device according to this embodiment of the present invention is merely an example and should not limit the functions and scope of use of the embodiments of the present invention.

[0187] The electronic device is implemented as a general-purpose computing device. Components of the electronic device may include, but are not limited to, the aforementioned at least one processor, the aforementioned at least one storage, and a bus connecting different system components (including the storage and the processor).

[0188] The storage stores program codes, which can be executed by the processor, so that the processor executes the steps according to various exemplary embodiments of the present invention described in the above “Exemplary Method” section of this specification.

[0189] The memory may include readable media in the form of volatile memory, such as random access memory (RAM) and / or cache memory, and may further include read only memory (ROM).

[0190] The storage may also include a program / utility having a set (at least one) of program modules, such program modules including but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment.

[0191] The bus may represent one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processor, or a local bus using any of a variety of bus architectures.

[0192] The electronic device may also communicate with one or more external devices (e.g., keyboards, pointing devices, Bluetooth devices, etc.), one or more devices that enable a user to interact with the electronic device, and / or any device that enables the electronic device to communicate with one or more other computing devices (e.g., routers, modems, etc.). Such communication may be performed via an input / output (I / O) interface. Furthermore, the electronic device may also communicate with one or more networks (e.g., local area networks (LANs), wide area networks (WANs), and / or public networks, such as the Internet) via a network adapter. The network adapter communicates with other modules of the electronic device via a bus. It should be understood that, although not shown in the figures, other hardware and / or software modules may be used in conjunction with the electronic device, including but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0193] Through the description of the above embodiments, it is easy for those skilled in the art to understand that the example embodiments described herein can be implemented by software or by combining software with necessary hardware. Therefore, the technical solution according to the embodiments of the present disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which can be a personal computer, a server, a terminal device, or a network device, etc.) to execute the method according to the embodiments of the present disclosure.

[0194] In exemplary embodiments of the present disclosure, a computer-readable storage medium is also provided, on which is stored a program product capable of implementing the methods described above. In some possible implementations, various aspects of the present invention may also be implemented in the form of a program product comprising program code that, when executed on a terminal device, causes the terminal device to execute the steps according to various exemplary embodiments of the present invention described in the "Exemplary Methods" section above.

[0195] The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or component, or any combination thereof. More specific examples (a non-exhaustive list) of readable storage media include: an electrical connection with one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof.

[0196] A computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, which carries readable program code. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A readable signal medium may also be any readable medium other than a readable storage medium that can transmit, propagate, or transfer a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0197] The program code embodied on the readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

[0198] The program code for performing the operations of the present invention may be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Java, C++, and the like, as well as conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user computing device, partially on the user device, as a stand-alone software package, partially on the user computing device and partially on a remote computing device, or entirely on a remote computing device or server. In cases involving a remote computing device, the remote computing device may be connected to the user computing device via any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computing device (e.g., via the Internet using an Internet service provider).

[0199] Furthermore, the above-described figures are merely illustrative of the processes included in the method according to exemplary embodiments of the present invention and are not intended to be limiting. It is readily understood that the processes illustrated in the above-described figures do not indicate or limit the temporal order of these processes. Furthermore, it is readily understood that these processes may be executed synchronously or asynchronously, for example, in multiple modules.

[0200] It should be noted that although several modules or units of the device for action execution are mentioned in the detailed description above, this division is not mandatory. In fact, according to the embodiments of the present disclosure, the features and functions of two or more modules or units described above can be concretized in one module or unit. Conversely, the features and functions of one module or unit described above can be further divided into multiple modules or units to be concretized.

[0201] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. An optical element for human eye imaging, characterized in that: An auxiliary optical adjustment area is provided on the front surface or the rear surface of the optical element for adjusting the convergence degree of light entering the human eye; The auxiliary optical adjustment area includes two fine-adjustment curved surfaces that continuously and periodically change along two directions; the auxiliary focal power of the fine-adjustment curved surfaces within one change cycle continuously changes between positive and negative; the auxiliary focal power is the difference between the focal power of a certain point of the optical element and the prescribed focal power; The plane projection length of the fine-tuning curved surface within one variation cycle is less than or equal to the unit window diameter; The unit window diameter is the length of the pupil diameter mapped on the optical element when the user uses the optical element to perform eye imaging. The unit window can be selected at any position within the auxiliary optical adjustment area. The unit window is the circular area on the lens where the pupil is mapped after the user wears glasses made of the optical element. The auxiliary focal length at any position in the auxiliary optical adjustment area is the interference superposition value, maximum value, minimum value, average value or product of the auxiliary focal lengths of the two fine-adjustment curved surfaces at that position.

2. The optical element according to claim 1, wherein The auxiliary focal length of the fine-tuning curved surface within a variation cycle varies continuously between positive and negative according to a sinusoidal variation law.

3. The optical element according to claim 2, wherein The auxiliary optical adjustment area includes two fine-adjustment curved surfaces respectively arranged along two mutually intersecting directions.

4. The optical element according to claim 2, wherein The auxiliary optical adjustment region includes a fine-adjustment curved surface that is radially diffused from the center to the outside; the auxiliary optical adjustment region also includes a fine-adjustment curved surface that is circumferentially arranged.

5. The optical element according to claim 1, wherein The auxiliary focal length of the fine-adjustment curved surface within a variation cycle continuously varies between positive and negative according to the variation law of the spiral sine; the spiral sine is a cross-superposition of spiral variation and sine variation; the auxiliary optical adjustment area includes multiple fine-adjustment curved surfaces distributed along a circumferential rotation, forming a spiral distributed first corrugated surface structure with the center of the auxiliary optical adjustment area as the spiral center; The auxiliary optical adjustment area also includes a second corrugated surface structure, which includes a micro-adjustment surface radially diffusing from the center of the auxiliary optical adjustment area to the outside. The auxiliary focal length of the micro-adjustment surface within a change cycle in the second corrugated surface structure continuously changes between positive and negative according to a sinusoidal change law.

6. The optical element according to claim 1, wherein The optical element includes a contact lens or a spectacles lens.

7. The optical element according to claim 3, wherein The auxiliary optical adjustment area includes two fine-adjustment curved surfaces respectively arranged along two orthogonal directions.

8. The optical element according to claim 1, wherein The auxiliary optical adjustment area is distributed in the target area on the front surface or back surface of the optical substrate to be processed. The target area is a circular or annular area with the geometric center of the optical substrate to be processed as the center and R1 and R2 as the radius; the target area is used to cover the normal scanning range of the human eye after wearing the optical element.

9. The optical element according to claim 8, wherein R1∈[0mm, 2mm], R2∈[3mm, 6mm] or R1∈[0mm, 5mm], R2∈[10mm, 30mm].

10. The optical element according to claim 1, wherein The auxiliary focal length of the fine-tuning curved surface within one variation cycle varies continuously between positive and negative according to the rule of a trapezoidal square wave.

11. A method for generating auxiliary focal power of an optical element, characterized in that: Used to generate the auxiliary focal power of the fine-tuning curved surface within a change cycle in an optical element according to any one of claims 1 to 10; The method comprises the following steps: generating an adjustment offset b according to a user's use of the optical element; According to b, the auxiliary focal power ADD of the fine adjustment surface within a change cycle is generated. end ;ADD end The following conditions are met: Wherein, T is the period length of the fine-tuning curved surface within one variation period, 0.2d≤T≤1d; d is the unit window diameter; d satisfies the following conditions: h is the user's pupil diameter; i is the distance between the lens and the eyeball after the user wears glasses made of the optical element; g is the axial length of the eye; S is the distance from a point on the micro-adjustment surface to the starting point of the cycle within a change cycle; A is the auxiliary adjustment amplitude.

12. The method according to claim 11, characterized in that Generate an adjustment offset b according to the user's use of the optical element, including: If the user has a single common usage scenario for the optical element, b is generated as follows: Generate the adjustment demand E based on the user's most commonly used eye distance L; Generate an adjustment offset b based on E and the user's age N; b satisfies the following conditions: b=E-(15-0.25N) / 2; Where E = 1 / L, where L is in meters. If E - (15 - 0.25 N) / 2 < 0, then b = 0.

13. The method according to claim 11, characterized in that Generate an adjustment offset b according to the user's use of the optical element, including: If the user has multiple common usage scenarios for the optical element, then b meets the following conditions: b=t1×b 近 / (t1+t2+t3)+t2×b 中 / (t1+t2+t3)+t3×b 远 / (t1+t2+t3) Wherein, t1 is the total daily time that the user uses the optical element in the eye-use scenario where the eye-use distance L meets L<50cm, b 近 is the adjustment offset corresponding to the user's most commonly used eye distance in the eye-use scenario where the eye distance L meets the condition of L<50cm; t2 is the total daily time the user uses the optical element in the eye-use scenario where the eye distance L meets the condition of 50cm≤L≤75cm, b 中 is the adjustment offset corresponding to the user's most commonly used eye distance in the eye use scenario where the eye use distance L meets the requirements of 50cm≤L≤75cm; t3 is the total daily time the user uses the optical element in the eye use scenario where L>75cm, b 远 is the adjustment offset corresponding to the user's most commonly used eye distance in the eye usage scenario where L>75cm, and b 远 =0.

14. The method according to claim 11, characterized in that A is generated as follows: According to the user's use of the optical element, the limit adjustment demand E is generated. 近 ; According to E 近 and the user's age N, generate the auxiliary adjustment amplitude A; A meets the following conditions: A=E 近 -(15-0.25N) / 2; Among them, E 近 =1 / L 近 , L 近 The closest eye distance corresponding to the user in the eye-use scenario of using the optical element, where the unit is m.

15. A non-transitory computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the method for generating auxiliary focal power of an optical element according to any one of claims 11 to 14 is implemented.

16. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the method for generating auxiliary focal power of an optical element according to any one of claims 11 to 14 is implemented.

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