Lens element

Abstract

An optical lens intended to be worn in front of a wearer's eye having at least one prescribed refractive power (Px), wherein the optical lens comprises two opposing optical planes and a plurality of adjacent optical elements, at least some of the optical elements have an optical function that does not focus an image on the retina of the wearer's eye to slow the progression of abnormal refraction of the eye, and - a modulation transfer function of 0 to 20 cyc / deg can be measured through the optical lens of greater than 0.1 in a plane corresponding to the at least one prescribed refractive power along at least one direction across a pupil with a diameter of at least 4 mm, and - most of the light rays passing through the optical lens across the pupil pass through at least one of the plurality of optical elements, and - each of the adjacent optical elements checks Formula (I), where d is a characteristic dimension of the contour of the optical element in mm, |P| is the absolute value of the characteristic optical refractive power of the optical element expressed in diopters, and K is a number greater than or equal to 0.9 and less than or equal to 1.7.

Description

Technology Field

[0001] The present disclosure relates to an optical lens intended to be worn in front of a wearer's eye having at least one prescribed refractive power (Px), wherein the optical lens comprises two opposing optical surfaces and a plurality of adjacent optical elements.

[0002] The present disclosure also relates to a mold for a lens element intended to be worn in front of a human eye. Background Technology

[0003] Myopia is characterized by the fact that the eye focuses distant objects in front of the retina. Myopia is generally corrected using concave lenses, while hyperopia is generally corrected using convex lenses.

[0004] It has been observed that when corrected using conventional single-focus optical lenses, some people, particularly children, experience inaccurate focusing when observing objects located at close range—that is, under near vision conditions. Due to this focusing defect in some myopic children whose distance vision is corrected, images of near objects are formed behind the retina and even in the fovea region.

[0005] Such focusing defects can affect the progression of myopia in such individuals. In most of the aforementioned individuals, it can be observed that the myopic defect tends to increase over time.

[0006] Foveal vision corresponds to the observation conditions in which the image of an observed object is formed by the eye within the central region of the retina referred to as the foveal zone.

[0007] Peripheral vision corresponds to the perception of scene elements offset laterally with respect to the viewed object, and the image of said elements is formed in the peripheral part of the retina far from the foveal zone.

[0008] Ophthalmic corrections provided to patients with refractive errors are generally configured to match their foveal vision. However, as is known, corrections must be reduced in peripheral vision compared to the correction determined for foveal vision. In particular, studies conducted on monkeys have shown that strong defocusing of light behind the retina, occurring far from the foveal zone, can induce elongation of the eye and consequently lead to an aggravation of myopic defects. The problem to be solved

[0009] Therefore, it appears that a lens element capable of inhibiting or at least slowing down the progression of abnormal eye refractions, such as myopia or hyperopia, is required. means of solving the problem

[0010] To this end, the present disclosure proposes an optical lens intended to be worn in front of a wearer's eye having at least one prescribed refractive power (Px), wherein the optical lens comprises two opposing optical planes and a plurality of adjacent optical elements, and at least some of the optical elements have an optical function that does not focus an image on the retina of the wearer's eye in order to slow the progression of abnormal refraction of the eye, and

[0011] - A modulation transfer function of 0 to 20 cyc / deg can be measured through an optical lens greater than 0.1 in a plane corresponding to at least one prescribed refractive power along at least one direction across a pupil with a diameter of at least 4 mm, and

[0012] - Most of the light rays passing through the optical lens across the pupil pass through at least one of the plurality of optical elements, and

[0013] - Each of the adjacent optical elements is Verify,

[0014] d is a characteristic dimension of the contour of the above optical element in mm, and

[0015] |P| is the absolute value of the characteristic optical power of the above optical element expressed in diopters, and

[0016] K is a number greater than or equal to 0.9 and less than or equal to 1.7.

[0017] Advantageously, having an optical element that confirms a specific relationship between dimensions and optical refractive power allows adjacent optical elements to cover most of the surface portion of the optical lens while providing the prescribed refractive power to the wearer when wearing the optical lens.

[0018] Advantageously, the optical lens according to the present disclosure enables the slowing of the progression of abnormal refraction of the eye by utilizing adjacent optical elements while providing the prescribed refractive power to the wearer.

[0019] According to additional embodiments that may be considered alone or in combination:

[0020] - Across the pupil, an optical lens generates a first optical path difference (OPD1), a best spherical fitting optical lens generates a second optical path difference (OPD2), and a differential optical path map (DOP) is composed of the difference between the first optical path difference (OPD1) and the second optical path difference (OPD2), and the differential optical path (DOP) is not zero;

[0021] - Optical elements are adjacent to and / or above the pupil when the optical lens above the pupil does not include a refractive region having a refractive power based on the prescription for the wearer's eye, or includes a refractive region having a refractive power based on the prescription for the wearer's eye composed of a plurality of individual independent island-shaped regions;

[0022] - Across the pupil, a portion of the difference optical path (DOP) within the range [minimum level of DOP, minimum level of DOP + 10% of amplitude] represents less than 30% of the difference optical path (DOP) across the pupil, and the difference optical path (DOP) across the pupil at the amplitude is at the maximum level and / or;

[0023] - The characteristic dimension of each optical element corresponds to the largest diameter of an inscribed circle within a contour plot defined by the level of the difference optical path (DOP), said level is constant across the pupil and within a range [minimum level of DOP, minimum level of DOP + 10% of amplitude], and said difference optical path (DOP) across the pupil at said amplitude is the maximum level and / or;

[0024] - At least some, for example, all, of the optical elements have a characteristic optical refractive power of 20 D or less, for example 10 D or less, for example 6 D or less;

[0025] - A pupil with a diameter of 5 mm includes a reference point of the optical lens, for example, a fitting cross or an optical center, and / or;

[0026] - The above optical element is positioned on a structured mesh that is a square mesh, a hexagonal mesh, a triangle mesh, an octagonal mesh, or a random mesh, and / or;

[0027] - At least one, for example, all of the optical elements have / or have an optical function that focuses an image at a location other than the retina under standard wearing conditions;

[0028] - At least 50%, for example, all of the optical elements have optical axes, and the optical axes of the optical elements intersect at a single point;

[0029] - At least 50% of the optical elements, for example, all of them have at least one focal point, and at least one focal point of each optical element is matched and / or;

[0030] - At least 50%, for example, all of the optical elements are configured to focus an image at a common position and / or;

[0031] - At least one, for example, all of the optical elements have an optical function that does not focus an image under standard wearing conditions;

[0032] - At least 50%, e.g., at least 80% of the light rays passing through the optical lens across the pupil pass through at least one of a plurality of optical elements and / or;

[0033] - At least some, for example, all, of the optical elements are located on the front surface of the optical lens and / or;

[0034] - At least some, for example, all, of the optical elements are located on the rear surface of the optical lens and / or;

[0035] - At least some, for example, all, of the optical elements are located between the front and rear surfaces of the optical lens and / or;

[0036] - At least some, for example all, of the optical elements have an annular shape, for example, around the refractive region;

[0037] - The optical element has a contour shape that can be inscribed within a circle having a diameter of 0.2 mm or more, e.g. 0.4 mm or more, e.g. 0.6 mm or more, and 2.0 mm or less, e.g. 1.0 mm or less;

[0038] - Optical elements are positioned along multiple concentric rings and / or;

[0039] - Optical elements are positioned on a structured mesh and / or;

[0040] - The mesh structure is a random mesh, e.g., a Voronoi mesh, and / or;

[0041] - Optical elements are configured such that the average focusing of light rays passing through each optical element is located at the same distance from the retina, and the tolerance is 2 mm or less, preferably 1 mm or less;

[0042] - At least one of the optical elements, e.g., all of them, have / or have non-spherical optical functions under standard wear conditions;

[0043] - At least one, for example, all of the optical elements have / or have cylindrical power;

[0044] - At least some, for example, all of the optical elements have a constant optical refractive power and a discontinuous first derivative between two adjacent optical elements;

[0045] - At least some, for example, all of the optical elements have variable optical refractive power and change in sign of refractive power between two adjacent optical elements;

[0046] - Along at least one section of the lens, the optical element is configured such that the mean sphere of the optical element changes from one point of the section toward the periphery of the section, and / or;

[0047] - Along at least one section of the lens, the optical element is configured such that the cylinder of the optical element changes from one point of the section toward the periphery of the section, and / or;

[0048] - Along at least one section of the lens, the average sphere and / or cylinder of the optical element is configured such that it changes from the center of the section toward the peripheral part of the section, e.g., increasing and then decreasing, e.g., decreasing, e.g. increasing;

[0049] - The optical lens comprises a refractive region having no optical element and an optical function corresponding to the prescribed refractive power (Px) and / or;

[0050] - The optical lens is completely covered by an optical element and has a modulation transfer function value of 20 cy / degree, which is greater in the central region than in the peripheral region of the lens, within a plane corresponding to at least one prescribed refractive power along at least one direction;

[0051] - The refractive region is formed as a region other than the region formed by multiple optical elements and / or;

[0052] - The refractive region includes the optical center, and along any section passing through the optical center of the lens, the average sphere and / or cylinder of the optical element is configured such that, for example, it is increased and then decreased, for example, it is decreased, for example, it is increased; and / or;

[0053] The refractive region includes a distance vision reference point, a near vision reference point, and a meridian connecting the distance and near vision reference points, and under standard wearing conditions, along any horizontal section of the lens, the average sphere and / or cylinder of the optical element is configured such that, for example, it increases and then decreases, for example, it decreases, for example, it increases, along the intersection of the horizontal section and the meridian toward the peripheral part of the lens; and / or;

[0054] - The average sphere and / or cylinder increase function along the section depends on the position of the said section along the meridian and / or;

[0055] - The average sphere and / or cylinder growth function along the section is asymmetric and / or;

[0056] - Under standard wearing conditions, the optical element is configured such that at least one section is a horizontal section and / or;

[0057] - The average sphere and / or cylinder of the optical element changes from a first point of the section toward the periphery of the section, e.g., increases, and changes from a second point of the section toward the periphery of the section, e.g. decreases, and the second point is closer to the periphery of the section than the first point and / or;

[0058] - The average sphere and / or cylinder increasing function along at least one section is a Gaussian function and / or;

[0059] - The average sphere and / or cylinder increasing function along at least one section is a quadratic function and / or;

[0060] - At least some, for example, all, of the average sphere of the optical elements is varied within the optical elements with an eccentricity, for example, increased or decreased and / or;

[0061] - The above optical element is composed of at least two groups of adjacent optical elements and / or;

[0062] - Each group of adjacent optical elements is composed of at least two concentric rings having the same center, and each concentric ring of each group of adjacent optical elements is formed by an inner diameter corresponding to the smallest circle touching at least one optical element of the group and an outer diameter corresponding to the largest circle touching at least one optical element of the group;

[0063] - At least some, for example, all, of the concentric rings of the optical elements are centered at the optical center of the surface of the lens element on which the optical element is positioned;

[0064] - Concentric rings of optical elements have a diameter of 9.0 mm to 60 mm;

[0065] - The optical element additionally includes an optical element positioned radially between two concentric rings;

[0066] - At least one of the optical elements is a multifocal refractive micro-lens and / or;

[0067] - At least one multifocal refractive micro-lens includes cylindrical refractive power and / or;

[0068] - At least one multifocal refractive micro-lens comprises an aspherical surface having or not having arbitrary rotational symmetry;

[0069] - At least one of the optical elements is a toric refractive micro-lens and / or;

[0070] - At least one multifocal refractive micro-lens includes a toric surface.

[0071] The present disclosure also relates to a molding element configured to mold an optical lens according to the present disclosure.

[0072] For example, the present disclosure relates to a molding element for a lens element comprising a plurality of adjacent optical elements, each comprising a principal surface having a curvature and a plurality of adjacent surface elements, wherein each surface element has a curvature different from the curvature of the principal surface, and

[0073] Across a disk at least 4 mm in diameter:

[0074] - Adjacent surface elements cover most of the main surface, and

[0075] - Each of the adjacent surface elements Check and

[0076] d is a characteristic dimension of the contour of the above surface element in mm, and

[0077] |C| is the absolute value of the characteristic curvature of the above surface element expressed in diopters, and

[0078] L is a number greater than or equal to 1 and less than or equal to 7.6. Effects of the invention

[0079] Included in the contents of the present invention. Brief explanation of the drawing

[0080] Now, non-limiting embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. FIG. 1 is an overall profile drawing of an optical lens according to an embodiment of the present disclosure. FIG. 2 is a plan view of an optical lens according to an embodiment of the present disclosure. FIGS. 3a to 3c illustrate examples of the positions of optical elements according to the present disclosure. Figure 4 illustrates the astigmatism axis (γ) of the lens in the TABO convention. FIG. 5 shows the cylinder axis (γ) in the convention used to characterize an aspherical surface. AX ) city. Figures 6 and 7 schematically illustrate the optical system of the eye and lens. FIG. 8 illustrates an exploded view of a mold for a lens element according to an embodiment of the present disclosure. Elements in the drawings are illustrated for brevity and clarity and are not necessarily drawn to actual scale. For example, to aid in understanding embodiments of the present disclosure, the dimensions of some elements in the drawings may be exaggerated compared to others. Specific details for implementing the invention

[0081] The present disclosure relates to an optical lens intended to be worn in front of a wearer's eye.

[0082] In the description, terms such as ≪top≫, ≪bottom≫, ≪horizontal≫, ≪vertical≫, ≪top≫, ≪bottom≫, ≪front≫, and ≪rear≫, or other words indicating relative positions, may be used. These terms should be understood in the context of wearing the lens element.

[0083] In the context of the present disclosure, the term “lens element” may refer to an uncut optical lens or an optical optical lens or ophthalmic lens with a soft surface cut to fit into a specific spectacle frame, and an optical device configured to be positioned on the ophthalmic lens. The optical device may be positioned on the front or rear surface of the ophthalmic lens. The optical device may be an optical patch. The optical device may be configured to be positioned detachably on the ophthalmic lens, for example, such as a clip configured to be clip-secured onto an optician frame containing the ophthalmic lens.

[0084] An optical lens according to the present disclosure is configured to fit a wearer and is intended to be worn in front of the wearer's eye.

[0085] As illustrated in FIG. 1, an optical lens (10) according to the present disclosure includes two opposing optical surfaces (F1 and F2) and a plurality of adjacent optical elements (12).

[0086] Optical elements are considered adjacent when they share a common surrounding boundary.

[0087] A lens element (10) according to the present disclosure as illustrated in FIG. 1 includes an object-side surface (F1) formed as a convexly curved surface of FIG. 1 toward the object side, and an eye-side surface (F2) formed as a concave surface of FIG. 1 having a curvature different from the curvature of the object-side surface (F1).

[0088] According to an embodiment of the present disclosure, at least some, for example all, of the optical elements are located on the front surface of the lens element.

[0089] At least some, for example, all, of the optical elements may be located on the rear surface of the lens element.

[0090] At least some, for example, all, of the optical elements may be located between the front surface and the rear surface of the lens element. For example, the lens element may include zones having different refractive indices that form the optical elements.

[0091] An optical lens according to the present disclosure is intended to be worn in front of a wearer's eye having at least a prescribed refractive power (Px). The prescribed refractive power may correspond to a spherical and / or cylindrical optical refractive power.

[0092] In order to slow down the progression of abnormal refraction of the eye, at least some, for example all, of the optical elements (12) of the optical lens (10) have an optical function that does not focus an image on the retina of the wearer's eye.

[0093] In order to slow down the progression of abnormal refraction of the eye, preferably, at least 50%, for example, at least 80%, for example, all of the optical elements have an optical function that does not focus an image on the retina of the wearer's eye.

[0094] In the sense of the present disclosure, "focusing" may be understood as creating a focusing spot having a circular cross-section that can be reduced to a point within the focal plane or to the size of a diffraction spot.

[0095] Advantageously, such optical function of the optical element reduces deformation of the wearer's retina in peripheral vision and, consequently, slows down the progression of abnormal refraction in the eye of the person wearing the lens element.

[0096] According to an embodiment of the present disclosure, at least some, for example all, of the optical elements have an optical function for focusing an image at a location other than the retina.

[0097] Preferably, at least 50%, for example, at least 80%, for example, all of the optical elements have an optical function that focuses an image at a location other than the retina.

[0098] According to a preferred embodiment of the present disclosure, all optical elements are configured such that, at least for peripheral vision, the average focusing of the rays passing through each optical element is located at the same distance from the wearer's retina.

[0099] As shown in FIG. 2, a plurality of adjacent optical elements include a plurality of independent adjacent optical elements (12).

[0100] In the sense of the present disclosure, two optical elements are considered independent when generating independent images.

[0101] In particular, when illuminated by a parallel beam in the "central vision," each "independent adjacent optical element" forms an associated spot on a plane in image space. In other words, when one of the "optical elements" is concealed, no spot appears even if this optical element is adjacent to another optical element.

[0102] According to an embodiment of the present disclosure, an optical element is positioned on a mesh.

[0103] Although not accurately shown in FIG. 2, the mesh on which the optical element is located can be structured as shown in FIG. 3a and FIG. 3c.

[0104] According to a preferred embodiment of the present disclosure, an optical element may be positioned on a structured mesh, such as a square mesh, a hexagonal mesh, a triangular mesh, an octagonal mesh, or a random mesh.

[0105] Figure 3a illustrates optical elements positioned along a hexagonal mesh.

[0106] Figure 3b illustrates optical elements positioned along a square mesh.

[0107] Optical elements can also be positioned along multiple concentric rings.

[0108] The concentric rings of an optical element can be annular rings.

[0109] According to an embodiment of the present disclosure, the lens element comprises optical elements positioned in at least two concentric rings, preferably more than five, more preferably more than ten concentric rings. For example, the optical elements may be positioned in eleven concentric rings centered at the optical center of the lens.

[0110] Alternatively, the optical element can be positioned on a random structure mesh, such as the Voronoi mesh shown in Fig. 3c.

[0111] Advantageously, having optical elements located on random structures limits the risk of light scattering or refraction.

[0112] Wearing conditions should be understood as the position of the optical lens relative to the wearer's eye, defined, for example, by the panfocal angle, cornea-to-lens distance, pupil-to-cornea distance, center of rotation (CRE) to pupil distance, CRE to lens distance, and wrap angle.

[0113] The cornea-to-lens distance is the distance between the cornea and the posterior surface of the lens along the visual axis of the eye in the principal position (usually taken horizontally); for example, 12 mm.

[0114] The pupil-cornea distance is the distance along the visual axis of the eye between the pupil and the cornea, and is generally 2 mm.

[0115] The CRE to pupil distance is the distance between the center of rotation (CRE) of the eye along the visual axis of the eye and the cornea; for example, 11.5 mm.

[0116] The CRE to lens distance is the distance between the CRE of the eye and the posterior surface of the lens along the visual axis of the eye in the principal position (usually taken horizontally), and is, for example, 25.5 mm.

[0117] The angle of inclination is the angle in the vertical plane at the intersection of the normal to the rear surface of the lens in the principal position and the visual axis of the eye (generally taken horizontally), and the visual axis of the eye; for example, -8°.

[0118] The lap angle is the angle in the horizontal plane at the intersection of the posterior surface of the lens in the principal position and the visual axis of the eye (which is generally taken as vertical), between the normal to the posterior surface of the lens in the principal position and the visual axis of the eye, and is, for example, 0°.

[0119] Examples of standard wearing conditions can be defined as a panfocal angle of -8°, a cornea-to-lens distance of 12 mm, a pupil-to-cornea distance of 2 mm, a CRE-to-pupil distance of 11.5 mm, a CRE-to-lens distance of 25.5 mm, and a wrap angle of 0°.

[0120] The term "prescription" should be understood to mean a set of optical characteristics, such as optical refractive power, astigmatism, and prism deviation, determined by an ophthalmologist or optometrist to correct visual defects, for example, using a lens positioned in front of the wearer's eye. For example, a prescription for myopia includes values ​​for optical refractive power and astigmatism along the axis for distance vision.

[0121] Although the present disclosure does not relate to progressive lenses, the terms used in this description are illustrated in FIGS. 1 through 10 of WO2016 / 146590 regarding progressive lenses. Those skilled in the art may adapt such provisions to single-focus lenses.

[0122] An optical lens or optical element may include, but is not limited to, a non-rotationally symmetric aspherical surface, e.g., a progressive surface, a regressive surface, a toric or atoric surface.

[0123] As is known, minimum curvature (CURV min ) is defined by the following formula at any point on an aspherical surface:

[0124]

[0125] Here, R max is the local maximum radius of curvature expressed in meters, and CURV min It is expressed in diopters.

[0126] Likewise, maximum curvature (CURV max ) can be defined by the following formula at any point on an aspherical surface:

[0127]

[0128] Here, R min is the local minimum radius of curvature expressed in meters, and CURV max It is expressed in diopters.

[0129] When the surface is locally spherical, the local radius of minimum curvature (R min ) and local maximum radius of curvature (R max ) is the same, and accordingly, the minimum and maximum curvature (CURV min and CURV max It can be seen that ) is also the same. When the surface is aspherical, the local radius of minimum curvature (R min ) and local maximum radius of curvature (R max ) is different.

[0130] Minimum and maximum curvature (CURV) min and CURV max From this expression of ), SPH min and SPH max The minimum and maximum spheres indicated by can be estimated depending on the type of surface being considered.

[0131] When the surface under consideration is the object-side surface (also referred to as the front surface), the formula is as follows:

[0132] , and And,

[0133] Here, n is the index of the lens's constituent material.

[0134] When the surface under consideration is the ocular surface (also referred to as the posterior surface), the formula is as follows:

[0135] and Igo

[0136] Here, n is the index of the lens's constituent material.

[0137] As is well known, the mean sphere (SPHmean) at any point on an aspherical surface can also be defined by the following formula:

[0138]

[0139] Therefore, the representation of the average sphere depends on the surface being considered:

[0140] When the surface is the object-side surface,

[0141] When the surface is the ocular surface,

[0142] The cylinder (CYL) is also a formula It is defined by.

[0143] The characteristics of any aspherical surface of a lens can be expressed as a local average spherical surface and a cylinder. When the cylinder is at least 0.25 diopters, the surface can be considered locally aspherical.

[0144] In the case of an aspherical surface, a local cylinder axis (γAX) may be further defined. FIG. 4 illustrates the aspherical axis (γ) as defined in the TABO convention, and FIG. 5 illustrates the cylinder axis (γAX) in the convention defined to characterize an aspherical surface.

[0145] The cylinder axis (γAX) is the orientation angle of the maximum curvature (CURVmax) relative to the reference axis and in the selected rotational direction. In the convention defined above, the reference axis is horizontal (the angle of this reference axis is 0°), and the rotational direction is counterclockwise for each eye when looking at the wearer (0° ≤ γAX ≤ 180°). Thus, an axis value of +45° for the cylinder axis (γAX) represents an axis oriented obliquely accordingly, which extends from the upper right quadrant to the lower left quadrant when looking at the wearer.

[0146] In addition, progressive multifocal lenses may also be defined by their optical characteristics, taking into account the situation of the person wearing the lens.

[0147] FIGS. 6 and 7 are schematic diagrams of an optical system of an eye and a lens and, accordingly, show the provisions used in the description. More specifically, FIG. 6 shows a perspective view of such a system illustrating parameters (α and β) used to define the direction of gaze. FIG. 7 is a diagram in a vertical plane parallel to the front-rear axis of the wearer's head and passing through the center of rotation of the eye when the parameter (β) is 0.

[0148] The center of rotation of the eye is denoted as Q'. The axis (Q'F'), illustrated by a dashed line in FIG. 8, is a horizontal axis that passes through the center of rotation of the eye and extends forward of the wearer, i.e., the axis (Q'F') corresponding to the primary field of vision. This axis intersects the aspherical surface of the lens at a point referred to as the fitting cross, which is present on the lens to allow the optician to position the lens within the frame. The point of intersection between the rear surface of the lens and the axis (Q'F') is point (O). O can be the fitting cross when positioned on the rear surface. The vertex sphere of the center (Q') and radius (q') touches the rear surface of the lens at the point on the horizontal axis. For example, a radius (q') value of 25.5 mm corresponds to a typical value and provides satisfactory results when wearing the lens.

[0149] The given gaze direction indicated by the solid line in FIG. 6 corresponds to the position of the eye in rotation around Q' and the point (J) on the vertex sphere; the angle (β) is the angle formed between the axis (Q'F') and the projection of the straight line (Q'J) on the horizontal plane containing the axis (Q'F'); this angle is shown in the illustration of FIG. 6. The angle (α) is the angle formed between the axis (Q'J) and the projection of the straight line (Q'J) on the horizontal plane containing the axis (Q'F'); this angle is shown in the illustration of FIG. 6 and FIG. 7. Thus, the given gaze field corresponds to the point (J) or couple (α, β) on the vertex sphere. The greater the positive value of the downward gaze angle, the further the gaze is directed downward, and the greater the negative value, the higher the gaze is directed upward.

[0150] In a given viewing direction, an image of a point (M) in object space located at a given object distance is formed between two points (S and T) corresponding to minimum and maximum distances (JS and JT), which may be sagittal and tangential local focal lengths. At infinity, an image of a point in object space is formed at point (F'). Distance (D) corresponds to the rear frontal plane of the lens.

[0151] "Ergorama is a function that associates the general distance of an object point with each gaze direction. Generally, in distant vision following the dominant gaze direction, the object point is at infinity. In near vision, when following a gaze direction that corresponds to an absolute value of approximately 35° (α) and approximately 5° (β) toward the nasal side, the object distance is approximately 30 cm to 50 cm. For more details on possible definitions of ergorama, one may consider U.S. Patent US-A-6,318,859. This document describes ergorama, its definition, and a method for modeling it. In the method of the present disclosure, the point may or may not be located at infinity. Ergorama may be a function of the wearer's non-amorphous vision or the wearer's addition.

[0152] Using these factors, the wearer's optical power and astigmatism can be defined for each gaze direction. An object point (M) at an object distance given by the ergorama is considered with respect to the gaze direction (α, β). Object proximity (ProxO) is defined as the reciprocal of the distance (MJ) between point (M) and point (J) on the vertex sphere with respect to a point (M) on the corresponding ray in object space:

[0153]

[0154] This allows the object proximity to be calculated within a thin lens approximation for all points on the vertex sphere, which is used for determining the ergorama. For a real lens, the object proximity can be considered as the inverse of the distance between the object point and the front surface of the lens in the corresponding ray.

[0155] In the same gaze direction (α, β), an image of a point (M) having a given object proximity is formed between two points (S and T) corresponding to the minimum and maximum focal lengths (which may be sagittal and tangential focal lengths), respectively. The numerical Proxl is referred to as the image proximity of point (M):

[0156]

[0157] Accordingly, as with thin lenses, for a given viewing direction and for a given object proximity, that is, for a point in object space on the corresponding ray, the optical refractive power (Pui) can be defined as the sum of the image proximity and the object proximity.

[0158]

[0159] Using the same notation, non-score aberration (Ast) is defined as follows for all gaze directions and given object proximity:

[0160]

[0161] These regulations correspond to the astigmatism of the light beam generated by the lens. It should be noted that these regulations provide the usual value of astigmatism in the dominant gaze direction. The astigmatism angle, generally referred to as the axis, is the angle (γ). The angle (γ) is measured in the frame {Q', xm, ym, zm} associated with the eye. This corresponds to the angle at which the image (S or T i) is formed according to the convention used in relation to the direction (zm) in the plane {Q', zm, ym}.

[0162] Therefore, under wearing conditions, possible definitions for the optical refractive power and astigmatism of the lens can be calculated as described in the paper titled “Ray Tracing Through Progressive Ophthalmic Lenses” by B. Bourdoncle et al. (1990 International Lens Design Conference, DT Moore ed., Proc. Soc. Photo. Opt. Instrum. Eng.).

[0163] As illustrated in FIG. 2, a pupil (16) with a diameter of at least 4 mm, e.g. 10 mm, can be defined such that a modulation transfer function of 0 to 20 cyc / deg can be measured through an optical lens of greater than 0.1, e.g. 0.2, in a plane corresponding to at least one prescribed refractive power along at least one direction.

[0164] The density of adjacent optical elements is determined such that, across the pupil (16), most of the light rays passing through the optical lens above the pupil (16), for example, at least 50% or at least 80%, pass through at least one of the plurality of optical elements.

[0165] In the sense of the present disclosure, a light ray is considered to pass through an optical element when it passes through the largest inscribed circle of the optical element corresponding to a contour plot defined by the level of the difference optical path (DOP), said level is constant across the pupil and within a range [minimum level of DOP, minimum level of DOP + 10% of the amplitude], and said difference optical path (DOP) across the pupil at said amplitude is the maximum level.

[0166] Across the pupil (16), the optical lens (10) creates a first optical path difference (OPD1). The optical path is the product of the geometric length of the path that light follows through the optical system and the refractive index of said optical system. The difference in optical path length between two paths is referred to as the optical path difference (OPD). In the sense of the present disclosure, the first optical path difference is the difference in optical path length between a ray passing through the optical lens and a ray passing through air. In the sense of the present disclosure, the following convention applies: In the case of a spherical lens having positive optical refractive power, the OPD is greater at the center than at the periphery.

[0167] OPD can be considered and measured as a surface in 3D space and can be described as (x, y, f(x,y)). The best sphere is a sphere with optimized parameters of its center and radius, as disclosed in Chapter 6 of the literature http: / / www.sci.utah.edu / ~balling / FEtools / doc_files / LeastSquaresFitting.pdf.

[0168] For the optimization process, the cost function can be defined, for example, by the sum across all points of the squared difference between each point and the sphere. This distance can be defined in at least two different ways.

[0169] - Z difference

[0170] - Vertical distance (as in previous papers).

[0171] The second optical path difference (OPD2) corresponding to the best spherical fitting optical lens can be determined.

[0172] A difference optical path (DOP) can be determined as the difference between the first optical path difference (OPD1) and the second optical path difference (OPD2). The difference optical path (DOP) of the optical lens according to the present disclosure is different from 0 across the pupil. In other words, the first optical path difference (OPD1) does not match the optical path difference of the spherical optical lens.

[0173] Optical elements are adjacent above the pupil when the optical lens above the pupil does not include a refractive region having a refractive power based on the prescription for the wearer's eye, or includes a refractive region having a refractive power based on the prescription for the wearer's eye composed of a plurality of individual independent island-shaped regions. Each island region is formed by an individual optical element.

[0174] In an embodiment, optical elements are adjacent across the pupil when the optical lens above the pupil does not include a refractive region having a refractive power based on the prescription for the wearer's eye.

[0175] In an embodiment, optical elements are adjacent across the pupil when the optical lens above the pupil comprises a refractive region having a refractive power based on a prescription for the wearer's eye, which is composed of a plurality of individual independent island-shaped regions.

[0176] In the sense of the present disclosure, a refractive power based on a prescription for the wearer's eye may be understood as a refractive power corresponding to the prescription for the wearer's eye, in particular as a prescribed refractive power (Px).

[0177] Preferably, such measurements are performed on an uncoated optical lens. Although not necessarily limited to uncoated optical lenses, such measurements appear to be more accurate with uncoated optical lenses. However, coated optical lenses can be measured, and by using a transfer function, it is possible to determine what the measurement value would be when the optical lens is uncoated. An example of such a transfer function is described in WO2020 / 079105.

[0178] Advantageously, having adjacent optical elements helps improve the aesthetics of the lens element and makes manufacturing easier.

[0179] Each optical element of an adjacent optical element, at least across the pupil (16), for example across all surfaces of the optical lens. Check and

[0180] d is a characteristic dimension of the contour of the above optical element in mm, and

[0181] |P| is the absolute value of the characteristic optical refractive power of the above optical element expressed in diopters, and

[0182] K is a number greater than or equal to 0.9, e.g., 1.2, and less than or equal to 1.7, e.g., 1.4.

[0183] The characteristic dimension (d) of the contour of the optical element may correspond to the specific size of each optical element.

[0184] To define the characteristic dimension (d) of each optical element, the difference optical path (DOP) determined as described above can be used.

[0185] The characteristic dimension of each optical element corresponds to the largest diameter of the inscribed circle within the contour plot defined by the level of the difference optical path (DOP), said level is constant across the pupil and within a range [minimum level of DOP, minimum level of DOP + 10% of the amplitude], and said difference optical path (DOP) across the pupil at said amplitude is the maximum level.

[0186] In particular, the optical element may have a contour shape that can be inscribed within a circle having a diameter of 0.2 mm or more, for example, 0.4 mm or more, for example, 0.6 mm or more, and 2.0 mm or less, for example, 1.0 mm or less.

[0187] The characteristic optical refractive power of an optical element can be the spherical optical refractive power when the optical element is spherical, or the maximum spherical optical refractive power when the optical element is not spherical. For example, in the case of an aspherical optical element, the characteristic optical refractive power is the average refractive power of the aspherical optical function of the optical element.

[0188] According to an embodiment of the present disclosure, at least some, for example all, of the optical elements have a characteristic optical refractive power of 20 D or less, for example 10 D or less, for example 6 D or less.

[0189] According to an embodiment of the present disclosure, at least some, for example, all, of the optical elements have a constant optical refractive power and a discontinuous first derivative between two adjacent optical elements.

[0190] Alternatively, at least some, for example all, of the optical elements have variable optical refractive power and a change in the sign of the refractive power between two adjacent optical elements.

[0191] In order to provide a focusing image at a certain distance from the retina of the wearer's eye, particularly in peripheral vision, the optical function of each optical element, in particular the dioptric function, can be optimized. Such optimization requires the adjustment of the dioptric function of each optical element according to its position on the lens element.

[0192] In particular, the inventors determined that the spot diagram of a beam of light passing through a spherical 3D shaped microlens analyzed at peripheral vision (30° from the center of the pupil) is not a point.

[0193] In order to obtain a point, the inventors determined that the optical element must have a circumferential refractive power, for example, have a toric shape.

[0194] According to an embodiment of the present disclosure, at least one, for example, all of the optical elements have a non-spherical optical function under standard wearing conditions.

[0195] According to another embodiment of the present disclosure, at least one, for example, all of the optical elements have circumferential refractive power.

[0196] According to an embodiment of the present disclosure, an optical element is configured such that, along at least one section of a lens, the average sphere of the optical element changes from one point of the section toward the periphery of the section.

[0197] The optical element may be further configured such that, along at least one section of the lens, for example, along the same section as the section where the average sphere of the optical element changes accordingly, the cylinder changes from a point in the section, for example, from the same point as the average sphere, toward the periphery of the section.

[0198] Advantageously, having an optical element configured such that, along at least one section of the lens, the average sphere and / or average cylinder of the optical element changes from a point of said section toward a peripheral part of said section, makes it possible to change the defocusing of light rays in front of the retina in the case of myopia and behind the retina in the case of hyperopia.

[0199] In other words, the inventors have observed that having an optical element configured such that, along at least one section of a lens, the average sphere of the optical element changes from a point in the section toward a peripheral part of the section helps to slow down the progression of abnormal refraction of the eye, such as myopia or hyperopia.

[0200] Along at least one section of the lens, the average sphere and / or cylinder of the optical element may be configured such that it changes from the center of the section toward the peripheral part of the section, for example, increasing and then decreasing, for example, decreasing and then increasing.

[0201] According to an embodiment of the present disclosure, an optical element is configured such that, under standard wearing conditions, at least one section is a horizontal section.

[0202] An optical lens may include an optical center, and along any section passing through the optical center of the lens, an optical element may be configured such that the average sphere and / or cylinder of the optical element changes, for example, by increasing from the optical center toward the peripheral part of the lens.

[0203] The optical lens may include a distance vision reference point, a near vision reference point, and a meridian combining the distance and near vision reference points. In this embodiment, under standard wearing conditions, the optical element may be configured such that, along any horizontal section of the lens, the average sphere and / or cylinder of the optical element changes, for example, by increasing, from the intersection of the horizontal section and the meridian toward the peripheral part of the lens.

[0204] Preferably, according to this embodiment, the optical element may be configured such that, under standard wearing conditions, the average sphere and / or cylinder of the optical element along any horizontal section of the lens changes, for example, by increasing, from the intersection of the horizontal section and the meridian line toward the peripheral part of the lens.

[0205] The meridian line corresponds to the point where the main gaze direction intersects the surface of the lens.

[0206] The average sphere and / or cylinder change function along the section, e.g., the increase function, depends on the position of the said section along the meridian.

[0207] In particular, the average sphere and / or cylinder change function along a section, e.g., the increase function, may be asymmetric. For example, the average sphere and / or cylinder increase function is asymmetric along vertical and / or horizontal sections under standard wear conditions.

[0208] The average sphere and / or cylinder can be increased according to an increasing function along at least one horizontal section, and the increasing function is a Gaussian function. The Gaussian function may differ between the nasal and temporal portions of the lens, and accordingly, the asymmetry of the human retina can be taken into account.

[0209] Alternatively, the mean sphere and / or cylinder may vary along at least one horizontal section according to an increasing function, and the increasing function is a quadratic function. The quadratic function may differ between the nasal and temporal portions of the lens, and accordingly, the asymmetry of the human retina can be taken into account.

[0210] According to an embodiment of the present disclosure, the average sphere and / or cylinder of the optical element is changed from a first point of the section toward a peripheral part of the section, for example, increased, and from a second point of the section toward a peripheral part of the section, for example decreased, and the second point is closer to the peripheral part of the section than the first point.

[0211] These embodiments are described in Table 1, which provides an average sphere of optical elements according to the radial distance to the optical center of the lens element.

[0212] For example, optical elements can be regularly distributed along circles centered at the optical center of an optical lens.

[0213] A circular optical element with a diameter of 10 mm and centered at the optical center of the optical lens may be a microlens having an average sphere of 2.75 D.

[0214] A circular optical element with a diameter of 20 mm and centered at the optical center of the refractive region may be a microlens having an average sphere of 4.75 D.

[0215] A circular optical element with a diameter of 30 mm and centered at the optical center of the refractive region may be a microlens having an average sphere of 5.5 D.

[0216] A circular optical element with a diameter of 40 mm and centered at the optical center of the refractive region may be a microlens having an average sphere of 5.75 D.

[0217] The cylinders of different optical elements can be adjusted based on the shape of the human retina.

[0218] According to an embodiment of the present disclosure, the optical element is preferably at least 50%, for example at least 80%, for example at least 95%, transparent, for example, all of the optical element is transparent.

[0219] Advantageously, the optical elements are not visible on the lens element and do not affect the aesthetics of the lens element.

[0220] The optical element can cover a specific area of ​​the lens element, such as the center or any other area.

[0221] The optical element can be located on the entire surface of the lens element.

[0222] The optical element density or optical refractive power of each optical element can be adjusted according to the zones of the lens element. Generally, the optical element density or optics can be adjusted to improve the effect of the optical element on myopia control, for example, to compensate for peripheral defocus caused by the peripheral shape of the retina.

[0223] According to an embodiment of the present disclosure, at least one, for example, all, of the optical elements has a shape configured to form a first plane in front of the retina of a human eye. In other words, such optical elements are configured such that all section planes (if any) where light flux is concentrated are located in front of the retina of a human eye.

[0224] According to an embodiment of the present disclosure, at least one, for example, all of the optical elements having a non-spherical optical function are multifocal microlenses.

[0225] In the sense of the present disclosure, "multifocal microlenses" include, for example, a microlens having a rotationally symmetric, continuously variable surface refractive power of continuously changing focal power, a bifocal (having two focal refractive powers), a trifocal (having three focal refractive powers) having a rotationally symmetric, for example, aspherical shape, having a continuous variable surface refractive power of continuously changing focal powers.

[0226] According to an embodiment of the present disclosure, at least one optical element, preferably more than 50%, more preferably more than 80%, is an aspherical microlens. In the sense of the present disclosure, the aspherical microlens has a continuous change in refractive power across its surface.

[0227] An aspherical microlens may have an aspheric degree of 0.1 D to 10 D. The aspheric degree of the aspherical microlens corresponds to the difference between the optical refractive power measured at a first point of the optical element and the optical refractive power measured at a second point of the microlens element, and the first and second points are located at different radial distances from the geometric center of the optical element.

[0228] The geometric center corresponds to the center of the largest inscribed circle within the contour plot defined by the level of the difference optical path (DOP), said level is constant across the pupil and within a range [minimum level of DOP, minimum level of DOP + 10% of the amplitude], and said difference optical path (DOP) across the pupil at said amplitude is the maximum level.

[0229] According to an embodiment of the present disclosure, the aspherical microlens has an optical refractive power at a first point of absolute value from 2.0 D to 7.0 D, and an optical refractive power at a second point of absolute value from 1.5 D to 6.0 D.

[0230] The asphericity of the aspheric microlens prior to coating the surface of the lens element on which the optical element is positioned may vary depending on the radial distance from the optical center of the lens element.

[0231] In addition, the asphericity of the aspheric microlens after coating the surface of the lens element on which the optical element is positioned may also vary depending on the radial distance from the geometric center of the lens element.

[0232] According to an embodiment of the present disclosure, at least one of the multifocal refractive micro-lenses has a toric surface. The toric surface is a rotational surface that can be generated by rotation of a circle or arc around an axis of rotation that does not pass through the center of curvature (which can eventually be located at infinity).

[0233] Toric surface lenses have two different radial profiles at right angles to each other, and accordingly produce two different focal refractive powers.

[0234] The toric and spherical surface components of a toric lens generate an astigmatic light beam, in contrast to single-point focusing.

[0235] According to an embodiment of the present disclosure, at least one optical element having a non-spherical optical function, for example, all of the optical elements is a toric refractive micro-lens. For example, it may be a toric refractive micro-lens having a spherical refractive power value greater than 0 diopter (δ) and less than or equal to +5 diopters (δ) and a cylindrical refractive power value greater than or equal to 0.25 diopters (δ).

[0236] In a specific embodiment, the toric refractive microlens may be a pure cylinder, which means that the minimum meridional refractive power is zero, while the maximum meridional refractive power is certainly positive, for example, less than 5 diopters.

[0237] Optical elements and / or optical lenses can be manufactured using different techniques such as direct surface processing, molding, casting or injection, embossing, filming, or photolithography.

[0238] The present disclosure also relates to a molding element configured to mold an optical lens according to the present disclosure.

[0239] For example, the present disclosure relates to a molding element for a lens element comprising a plurality of adjacent optical elements, the molding element comprising a plurality of adjacent optical elements, the molding element comprising a principal surface having a curvature, and each of the surface elements having a curvature different from the curvature of the principal surface, and

[0240] Across a disk at least 4 mm in diameter:

[0241] - Adjacent surface elements cover most of the main surface, and

[0242] - Each of the adjacent surface elements Check and

[0243] d is a characteristic dimension of the contour of the above surface element in mm, and

[0244] |C| is the absolute value of the characteristic curvature of the above surface element expressed in diopters, and

[0245] L is a number greater than or equal to 1 and less than or equal to 7.6.

[0246] Such a mold enables the acquisition of an optical lens according to the present invention.

[0247] Optical refractive power is related to curvature by P = dn x C, where dn is the difference in refractive index on both sides of the diopter. Based on such a relationship, in order to obtain an optical lens according to the present disclosure having a K of 0.1 to 0.5, a mold having an L of 1 to 7.6 is required.

[0248] Therefore, L becomes the value of K / √dn.

[0249] At dn = 0.05, L must be between 4 and 7.6, and at dn = 0.8, L must be between 1 and 1.9.

[0250] As illustrated in FIG. 8, a mold (20) for an optical lens according to the present disclosure may include a first molding element (21), a second molding element (22), and a gasket (23).

[0251] The first molding element (21) has a first surface (24) having a first surface curvature. For example, the first surface (24) has a spherical surface curvature. Alternatively, the first surface (24) may have an aspherical surface curvature and / or a circumferential surface curvature and / or a toroidal surface curvature.

[0252] The first surface (24) includes a main surface having a curvature and a plurality of adjacent surface elements (26), each surface element having a curvature different from the curvature of the main surface.

[0253] For example, the surface element (26) of the first surface (24) of the first molding element (21) may correspond to the optical element of the optical lens being manufactured.

[0254] The surface element (26) may have surface features corresponding to all features disclosed in relation to the optical element of the optical lens according to the present disclosure.

[0255] In particular, across a disk with a diameter of at least 4 mm:

[0256] - Adjacent surface elements cover most of the main surface, and

[0257] - Each of the adjacent surface elements is Check and

[0258] d is a characteristic dimension of the contour of the above surface element in mm, and

[0259] |C| is the absolute value of the characteristic curvature of the above surface element expressed in diopters, and

[0260] L is a number greater than or equal to 1 and less than or equal to 7.6.

[0261] According to an embodiment of the present disclosure, at least two of the plurality of surface elements (26) are adjacent. In the sense of the present disclosure, in at least one path connecting two surface elements, the two surface elements are adjacent in a case where the first surface curvature of the first surface (24) of the first molding element (21) may not be measured along said at least one path.

[0262] At least some, for example, all, of a plurality of surface elements may be located on a structured network.

[0263] According to an embodiment of the present disclosure, positioning at least some, for example, all, of a plurality of surface elements (26) on a first surface of a first molding element exhibits rotational symmetry about an axis centered, for example, at the geometric center of the first surface (24) of the first molding element (21). In other words, at least some of the plurality of surface elements (16) may be regularly distributed along at least one circle centered at the geometric center of the first surface (24) of the first molding element (21).

[0264] According to an embodiment of the present disclosure, at least some, for example, all, of the plurality of surface elements (26) are located on a ring on the first surface (24) of the first molding element (21).

[0265] A plurality of surface elements (26) may additionally be configured on concentric rings on the first surface of the first molding element. For example, a plurality of surface elements (26) are positioned along a set of 11 concentric rings across the entire first surface (24) of the first molding element (21). The concentric rings of the surface elements may be centered at the geometric center of the first surface (24) of the first molding element (21).

[0266] The average surface curvature of multiple surface elements (26) may be the same across all surface elements of the same concentric ring. In particular, the average surface curvatures of the central regions of the surface elements (26) of the same concentric ring are the same.

[0267] According to another embodiment of the present disclosure, a plurality of surface elements (26) may be configured in other forms, such as, for example, a square-shaped pattern.

[0268] The mold (20) for the optical lens may further include a second molding element (22). The second molding element (22) has a second surface (25). In FIG. 3, the second surface (25) of the second molding element (22) is not shown because this surface faces the first surface (24) of the first molding element.

[0269] The mold (20) for the optical lens further includes a gasket (23). The gasket (23) has an annular shape including an inner surface (23a) and an outer surface (23b). The gasket (23) further includes an opening (27).

[0270] The gasket (23) seals the first and second molding elements (21 and 22) together to form a molding cavity (28). The molding cavity (28) is formed by a first surface (24) including a surface element (26) of the first molding element (21), a second surface (25) of the second molding element (22), and an inner surface (23a) of the gasket (23).

[0271] The molding cavity (28) of the mold (20) for the lens element (2) is filled with molding material through the opening (27). Although provided within the gasket (23), the opening (27) may alternatively be located in the first molding element or the second molding element.

[0272] For example, the molding material may be a casting material injected into the molding cavity through the opening (27) of the gasket (23). The casting material in the molding cavity is further polymerized into a lens material, thereby forming a lens element (2).

[0273] Alternatively, the molding material may be a thermoplastic material. A thermoplastic material in a first liquid state at a first temperature is injected into the mold cavity (28) through the opening (27). During the cooling process, the thermoplastic material changes from the first liquid state to a second solid state corresponding to the lens material of the lens element (2).

[0274] Many additional modifications and changes will be apparent to those skilled in the art with reference to the exemplary embodiments described above, and the exemplary embodiments described above are provided merely as examples and are not intended to limit the scope of the present disclosure, which is determined solely by the appended claims.

[0275] In the claims, the word “comprising” does not exclude other elements or steps, and the indefinite articles “a” or “an” do not exclude the plural. The mere fact that different features are cited in different dependent claims does not indicate that a combination of these features cannot be used advantageously. Any reference numerals within the claims should not be construed as limiting the scope of the disclosure.

Claims

Claim 1 An optical lens intended to be worn in front of a wearer's eye having at least one prescribed refractive power (Px), wherein the optical lens comprises two opposing optical planes and a plurality of adjacent optical elements, at least some of the optical elements having an optical function that does not focus an image on the retina of the wearer's eye to slow the progression of abnormal refraction of the eye, wherein a modulation transfer function through the optical lens is measured to exceed 0.1 in the range of 0 to 20 cyc / deg along at least one direction across a pupil having a diameter of at least 4 mm, the pupil is located in the central visual field, and at least 50% of the light rays passing through the above optical lens in the pupil pass through at least one of the plurality of optical elements, and each of the adjacent optical elements An optical lens, wherein d is a characteristic dimension of the contour of the optical element in mm, |P| is the absolute value of the characteristic optical refractive power of the optical element expressed in diopters, and K is a number greater than or equal to 0.9 and less than or equal to 1.

7. Claim 2 In claim 1, across the pupil, the optical lens generates a first optical path difference (OPD1), the best spherical fitting optical lens generates a second optical path difference (OPD2), and the difference optical path map (DOP) is composed of the difference between the first optical path difference (OPD1) and the second optical path difference (OPD2), and the difference optical path (DOP) is not zero, the optical lens. Claim 3 In paragraph 2, the optical elements are an optical lens adjacent to the pupil, wherein the optical lens above the pupil does not include a refractive region having a refractive power based on a prescription for the wearer's eye, or includes a refractive region having a refractive power based on a prescription for the wearer's eye composed of a plurality of individual independent island-shaped regions. Claim 4 An optical lens according to paragraph 2, wherein the characteristic dimension of each optical element corresponds to the largest diameter of an inscribed circle within a contour plot defined by the level of the difference optical path (DOP), said level is constant across the pupil and within a range [minimum level of DOP, minimum level of DOP + 10% of the amplitude], and said difference optical path (DOP) across the pupil is at the maximum level at said amplitude. Claim 5 An optical lens according to any one of claims 1 to 4, wherein at least a portion of the optical element has a characteristic optical refractive power with an absolute value of 20 D or less. Claim 6 An optical lens according to any one of claims 1 to 4, wherein the pupil with a diameter of 4 mm includes a reference point, fitting cross, or optical center or geometric center of the optical lens. Claim 7 An optical lens according to any one of claims 1 to 4, wherein the optical element is positioned on a structured mesh which is a square mesh, a hexagonal mesh, a triangular mesh, an octagonal mesh, or a random mesh. Claim 8 An optical lens according to any one of claims 1 to 4, wherein at least one of the optical elements has an optical function of focusing an image at a location other than the retina under standard wearing conditions. Claim 9 An optical lens according to any one of claims 1 to 4, wherein at least one of the optical elements has an optical function that does not focus an image at a location other than the retina under standard wearing conditions. Claim 10 An optical lens according to any one of claims 1 to 4, wherein at least a portion of the optical elements are located on the front surface of the optical lens. Claim 11 An optical lens according to any one of claims 1 to 4, wherein at least a portion of the optical elements are located on the rear surface of the optical lens. Claim 12 An optical lens according to any one of claims 1 to 4, wherein at least a portion of the optical elements are located between the front surface and the rear surface of the optical lens. Claim 13 A molding element for a lens element comprising a plurality of adjacent optical elements, the molding element comprising a plurality of adjacent surface elements, wherein each surface element has a curvature different from the curvature of the principal surface and spans a disk of at least 4 mm diameter: - the adjacent surface elements cover at least 50% of the principal surface, and - each of the adjacent surface elements Check, d is a characteristic dimension of the contour of the surface element in mm, |C| is the absolute value of the characteristic curvature of the surface element expressed in diopters, L is a number greater than or equal to 1 and less than or equal to 7.6, and the pupil is a molding element located in the central field of view. Claim 14 A molding element configured to mold an optical lens according to any one of claims 1 to 4. Claim 15 delete

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