Eyeglass lenses

Abstract

An eyeglass lens comprising at least - a first region containing a plurality of micro-optical elements, and - a second region containing a plurality of micro-optical elements, wherein the first region includes at least one annular portion defined by a point in the first region located at a first angular distance from a first center of the first region, and the second region includes at least one second annular portion defined by a point in the second region located at a second angular distance from a second center of the second region, wherein the difference between the logarithm of the integral of the value of the point spread function along the first annular portion of the first region and the logarithm of the integral of the value of the point spread function along the second annular portion of the second region is less than 15%, and the first and second angular distances are equal.

Description

[Technical Field]

[0001] The present invention relates to an eyeglass lens for improving the wearer's vision, and more particularly to an eyeglass lens that includes a micro-optical element. [Background technology]

[0002] Myopia is characterized by the eye focusing light in front of the retina. In other words, the length of vision exhibited by a myopic eye is not suited to clear vision. Myopia can have both genetic and environmental origins. In the latter case, myopia can develop not only due to increased close-up work and increased use of digital devices such as computer and smartphone screens, but also due to decreased outdoor activity.

[0003] Many solutions exist aimed at slowing the progression of myopia. For example, it is known that the progression of myopia can be managed and / or the discomfort induced by myopia and / or myopia suppression can be reduced by using a lens that has micro-optical elements with optical features adapted to provide a myopia progression suppression function, which is positioned to be worn in front of one eye of the subject. While these solutions are functional, they may alter the subject's visual acuity. [Overview of the Initiative] [Means for solving the problem]

[0004] In this regard, one object of the present invention is - A first region comprising a plurality of micro-optical elements arranged to cover at least 30 percent of the total area of ​​the first region, - A second region comprising a plurality of micro-optical elements arranged to cover at least 30 percent of the total area of ​​the second region. The objective is to provide eyeglass lenses that include at least the following: The first domain differs from the second domain, The first region includes at least one first annular region defined by a point in the first region that is centered at the first center of the first region and located at a first angular distance from the first center of the first region; the second region includes at least one second annular region defined by a point in the second region that is centered at the second center of the second region and located at a second angular distance from the second center of the second region; the first center of the first region is defined as the point of the maximum value of the point spread function of the spectacle lens across the first region (or to all its corners or over its entirety); the second center of the second region is defined as the point of the maximum value of the point spread function of the spectacle lens across the second region; the difference between the logarithm of the integral of the value of the point spread function along the first annular region of the first region and the logarithm of the integral of the value of the point spread function along the second annular region of the second region is less than 15%, and the first angular distance and the second angular distance are the same.

[0005] Due to the characteristics of these eyeglass lenses, they offer an appropriate trade-off between visual acuity, discomfort from myopia, and the suppression of disease progression.

[0006] According to one embodiment, the first region and the second region have two different sizes.

[0007] In one embodiment, the first region and the second region are of the same size.

[0008] In one embodiment, the first region and the second region are spaced apart from each other.

[0009] Typically, in eyeglass lenses, it becomes possible to account for changes in line of sight by defining at least two regions that have the same shape but differ in orientation or position. Therefore, if the point spread functions of these two regions are nearly the same, this means that the eyeglass lens provides a nearly stable visual quality for differences in line of sight, determined by the positions of at least two regions.

[0010] In addition, defining at least two regions of different sizes makes it possible to account for the wearer's normal pupil diameter changes. Therefore, if the point spread functions of each of these two regions are approximately the same, this means that the spectacle lens provides a nearly stable quality of vision against the differences in brightness environments that the wearer may encounter in real life (e.g., indoor or outdoor activities).

[0011] According to one embodiment, if at least a part of the first region is not also a part of the second region, or if at least a part of the second region is not also a part of the first region, then the first region is different from the second region.

[0012] This is, for example, - If the center of the first region is in a different position from the center of the second region, for example, if they are separated by at least 0.5 millimeters, - If the shape of the first region is different from the shape of the second region, - If the size of the first region is different from the size of the second region, - When the orientation of the first region is different from the orientation of the second region. This could apply.

[0013] Furthermore, this may also apply when the micro-optical elements within the two regions have different optical characteristics, such as refraction, diffraction, or diffusion functions, and / or different refractive indices.

[0014] Furthermore, this may also apply when the density of microelements in the first region differs from the density of microelements in the second region.

[0015] For a first region to be different from a second region, only one of these states is necessary. For example, a first and second region can have the same shape and size. These regions are different when they enter other states, for example, when the center of the first region is not in the same position as the center of the second region.

[0016] According to one embodiment, the spectacle lens includes other regions, for example, a third region, a fourth region, a fifth region, etc., each having micro-optical elements, and the other regions differ from the first region and the second region in at least one characteristic (for example, with respect to the density of micro-optical elements in a particular region, and / or the refraction, diffraction, or diffusion function of the micro-optical elements in a particular region, and / or the size of a particular region, and / or the position of a particular region, and / or the shape of a particular region, and / or the orientation of a particular region, etc.).

[0017] According to one embodiment, the first annular portion is centered at the center of the first region, and the second annular portion is centered at the center of the second region.

[0018] According to one embodiment, the first and second angular distances are in the range of 0.01° to 0.20°, and the angular distances are defined with respect to the point of oculorrhizo.

[0019] According to one embodiment, the first center and the second center are different from each other. This means that the first center is separated from the second center by an angular distance of, for example, at least 0.001° or 0.01°.

[0020] According to one embodiment, the micro-optical elements in the first region and the micro-optical elements in the second region are also - The point spread function of the first region has at least one local maximum at an angular distance between 0.0107° and 0.0895° from the first center, and / or - The point spread function of the second region has at least one local maximum at an angular distance between 0.0107° and 0.0895° from the second center. They are arranged in this manner.

[0021] According to one embodiment, the micro-optical elements of the first region and the micro-optical elements of the second region are arranged such that the difference between the full width at half maximum of the point spread function of the first region, defined along the cross-section of the first region by a first cross-section plane passing through the first center of the first region and parallel to the optical axis of the spectacle lens, and the full width at half maximum of the point spread interval of the second region, defined along the cross-section of the second region by a second cross-section plane passing through the second center of the second region and parallel to the optical axis of the spectacle lens, is less than 40%.

[0022] According to one embodiment, the difference between the full width at half maximum of the point spread function of the first region along the cross-section of the first region by the first cross-section and the full width at half maximum of the point spread function of the second region along the cross-section of the second region by the second cross-section is greater than 10%.

[0023] According to one embodiment, the total width of the point spread function of the first region along the cross-section of the first region passing through the first cross-section, at 20 percent of the maximum value of the point spread function of the first region along the cross-section of the first region by the first cross-section, has at least one of the following features: - A value where the difference between the total width and the maximum value of the point spread function of the second region along the cross-section of the second region by the second cross-section plane at 20 percent is less than 40%, - The value at which the difference between the total width and the maximum value of the point spread function of the second region along the cross-section of the second region by the second cross-section plane is greater than 5% at 20 percent.

[0024] According to one embodiment, the micro-optical elements of the first region and the micro-optical elements of the second region are arranged such that the full width at half maximum of the point spread function of the first region, defined along another cross-section of the first region by a third cross-section passing through the first center of the first region and parallel to the optical axis of the spectacle lens, has at least one of the following features: - A value such that the difference between the point spread function of the second region and the full width at half maximum, defined along another cross-section of the second region by a fourth cross-section of the second region that passes through the second center of the second region and is parallel to the optical axis of the spectacle lens, is less than 40%. - A value where the difference between the point spread function of the second region defined along another cross-section of the second region by the fourth cross-section of the second region and the full width at half maximum is greater than 10%.

[0025] According to one embodiment, the point spread function of at least one of the regions within the first and second regions has a principal peak and two secondary peaks located on either side of the principal peak.

[0026] According to one embodiment, the orthogonal projection of a first region onto a projection plane perpendicular to the optical axis of the spectacle lens and the orthogonal projection of a second region onto the same projection plane have different shapes or different sizes.

[0027] According to one embodiment, the geometric center of the orthogonal projection of the first region is at least 0.5 millimeters away from the geometric center of the orthogonal projection of the second region.

[0028] According to one embodiment, - The difference between the density of micro-optical elements in the first region and the density of micro-optical elements in the second region is less than 5%, and / or - The average refractive power of at least one of the micro-optical elements in the first region is different from the average refractive power of at least one of the micro-optical elements in the second region, and / or - At least one optical function of the micro-optical elements in the first region is different from that at least one optical element of the micro-optical elements in the second region, and / or - The difference between the diameter of at least one micro-optical element in the first region and the diameter of at least one micro-optical element in the second region is less than 5%.

[0029] According to one embodiment, at least one of the micro-optical elements in the first region and the second region includes at least one of the following features: - Average refractive power value contained in 1 diopter to 10 diopters, - Refractive optical function, diffractive optical function, or diffuse optical function.

[0030] According to one embodiment, the micro-optical elements in a first region are arranged according to a first pattern including at least two first concentric rings of the micro-optical elements, the first of the at least two first concentric rings of the micro-optical elements being spaced at least 1 millimeter apart from the second of the at least two first concentric rings of the micro-optical elements, and / or The micro-optical elements in the second region are arranged according to a second pattern including at least two second concentric rings of the micro-optical elements, the first of the at least two second concentric rings of the micro-optical elements being spaced at least 1 millimeter apart from the second of the at least two second concentric rings of the micro-optical elements.

[0031] According to one embodiment, at least one of the micro-optical elements in the first region is spaced at least 0.3 millimeters apart from at least one other of the micro-optical elements in the first region or the micro-optical elements in the second region.

[0032] According to one embodiment, each micro-optical element is spaced at least 0.4 millimeters apart from other micro-optical elements.

[0033] According to one embodiment, each micro-optical element is spaced at least 0.1 mm, or at least 0.2 mm, or at least 0.3 mm, or at least 0.4 mm, or preferably at least 0.5 mm, or at least 0.6 mm, or at least 0.7 mm, or at least 0.8 mm, or at least 0.9 mm, or at least 1 mm from other micro-optical elements.

[0034] Another object of the present invention is to provide a vision-correcting eyeglass comprising a frame and two eyeglass lenses according to the present disclosure.

[0035] In this disclosure, the density of micro-optical elements over a predetermined region of a lens element can be defined as the ratio of the total surface area of ​​the micro-optical elements to the area of ​​that predetermined region.

[0036] According to one embodiment, the density of micro-optical elements in a particular region is greater than 30%, or greater than 40%, or greater than 50%, or greater than 60%, or greater than 70%, or greater than 80%, or greater than 90%.

[0037] According to one embodiment, the density of micro-optical elements within a particular area of ​​the spectacle lens is at least 30%, and typically, - If the micro-optical elements are not continuous, they fall within 30% to 50% (including any values ​​such as 30%, 35%, 40%, 45%, etc.) or 40% to 50%. - If the micro-optical elements are continuous, they fall within the range of 60% to 100% (including all values ​​such as 65%, 70%, 80%, 85%, 90%, 95%), or 70% to 100%, or 80% to 100%.

[0038] According to one embodiment, at least one of the micro-optical elements in the first region and / or the second region includes at least one of the following features: - Average refractive power value contained in 1 diopter to 10 diopters, - Refractive optical function, diffractive optical function, or diffuse optical function.

[0039] According to one embodiment, the micro-optical elements in a first region are arranged according to a first pattern including at least two first concentric rings of the micro-optical elements, the first of the at least two first concentric rings being spaced at least 1 millimeter apart from the second of the at least two first concentric rings, and / or The micro-optical elements in the second region are arranged according to a second pattern including at least two second concentric rings of the micro-optical elements, the first of the at least two second concentric rings being spaced at least 1 millimeter apart from the second of the at least two second concentric rings.

[0040] According to one embodiment, at least one of the micro-optical elements in the first region is spaced at least 0.3 millimeters apart from at least one other micro-optical element in the first region, or at least one micro-optical element in the second region.

[0041] In this disclosure, the terms “first area,” “second area,” “third area,” “fourth area,” “fifth area,” and “sixth area” are not limiting and are used to distinguish different areas of spectacle lenses as described herein.

[0042] The following description, with reference to the accompanying drawings, will clarify what constitutes the present invention and how it can be achieved. The present invention is not limited to the embodiments shown in the drawings. Therefore, where reference numerals follow features mentioned in the claims, such numerals are included solely for the purpose of improving the understanding of the claims and should not be understood as limiting the scope of the claims in any way. [Brief explanation of the drawing]

[0043] [Figure 1] This is a schematic perspective view of eyeglasses including a pair of lenses according to this disclosure. [Figure 2] This is a schematic axial section view of the spectacle lens according to the present disclosure. [Figure 3] This is a schematic, oblique, one-sided view of the spectacle lens according to this disclosure. [Figure 4] This is a front view of the first example of an eyeglass lens according to the present disclosure, projected onto a facial plane (i.e., projection plane AA) perpendicular to the principal axis of the eyeglass lens. [Figure 5] Figure 4 is a magnified view of a portion of an eyeglass lens. [Figure 6] This figure shows the graphical representation of the point spread function of the spectacle lens calculated in the first region of the spectacle lens according to the first example. [Figure 7]This figure shows a graph representation combining a view of the point spread function shown in Figure 6 along a cross-section of the first region by a first cross-section plane, and a view of the point spread function shown in Figure 6 along yet another cross-section of the first region by a third cross-section plane of the first region, wherein the first and third cross-section planes of the first region are orthogonal. [Figure 8] This figure shows the graphical representation of the point spread function of the spectacle lens calculated in the second region of the spectacle lens according to the first example. [Figure 9] This figure shows a graph representation combining a view of the point spread function shown in Figure 8 along the cross-section of the second region by the second cross-section plane of the second region, and a view of the point spread function shown in Figure 8 along another cross-section of the second region by the fourth cross-section plane of the second region, wherein the second and fourth cross-section planes of the second region are orthogonal. [Figure 10A] This is another magnified view of another part of the spectacle lens, as in the second example. [Figure 10B] This is a schematic axial section of an eyeglass lens according to the second example. [Figure 11] This figure shows the graph representation of the first change in the logarithm of the integral of the value of the point spread function measured from the annular portion contained in the first region as a function of angular distance, the second change in the logarithm of the integral of the value of the point spread function measured from the annular portion contained in the second region as a function of angular distance, and the third change in the logarithm of the integral of the value of the point spread function measured from the annular portion contained in the third region as a function of angular distance, wherein the first, second, and third regions are contained within the spectacle lens according to the second example. [Figure 12] This is a schematic diagram of the system used to measure the point spread function according to this disclosure. [Figure 13] This is a front view of a third example of the spectacle lens according to this disclosure, projected onto a projection plane perpendicular to the principal axis of the spectacle lens (i.e., the facial plane BB). [Figure 14] Figure 13 is a magnified view of a portion of an eyeglass lens. [Figure 15] This is a magnified view of a portion of an eyeglass lens, as shown in the fourth example. [Figure 16]This figure shows the graphical representation of the point spread function of the spectacle lens calculated in the first region of the spectacle lens according to the fourth example. [Figure 17] This figure shows a graph representation combining a view of the point spread function shown in Figure 16 along the cross-section of the first region by a first cross-section plane of the first region, and a view of the point spread function shown in Figure 16 along the other cross-section of the first region by a third cross-section plane of the first region, wherein the first and third cross-section planes of the first region are orthogonal. [Figure 18] This figure shows the graphical representation of the point spread function of the spectacle lens calculated in the second region of the spectacle lens according to the fourth example. [Figure 19] This figure shows a graph representation combining a view of the point spread function shown in Figure 18 along the cross-section of the second region by the second cross-section plane, and a view of the point spread function shown in Figure 18 along the cross-section of the second region by the fourth second cross-section plane, wherein the second and fourth cross-section planes of the second region are orthogonal. [Figure 20] This is another magnified view of another part of the spectacle lens, according to the fifth example. [Figure 21] This figure shows the graph representation of the first change in the logarithm of the integral of the value of the point spread function measured from the annular portion contained in the first region as a function of angular distance, the second change in the logarithm of the integral of the value of the point spread function measured from the annular portion contained in the second region as a function of angular distance, and the third change in the logarithm of the integral of the value of the point spread function measured from the annular portion contained in the third region as a function of angular distance, wherein the first, second, and third regions are contained in the spectacle lens according to the fifth example. [Figure 22] This is a magnified view of a portion of an eyeglass lens, as shown in the sixth example. [Figure 23]This figure shows the graph representation of the first change in the logarithm of the integral of the value of the point spread function measured from the annular portion contained in the first region as a function of angular distance, the second change in the logarithm of the integral of the value of the point spread function measured from the annular portion contained in the second region as a function of angular distance, and the third change in the logarithm of the integral of the value of the point spread function measured from the annular portion contained in the third region as a function of angular distance, wherein the first, second, and third regions are contained in the spectacle lens according to the sixth example. [Figure 24] This figure shows a computer implementation method according to the present disclosure for identifying eyeglass lenses, as shown in some of the examples disclosed above. [Figure 25] The present disclosure shows a method for manufacturing spectacle lenses, as illustrated by some of the examples disclosed above. [Modes for carrying out the invention]

[0044] device Figures 1 to 3 show the spectacle lens 10 according to this disclosure.

[0045] In this case, the spectacle lens 10 is a concave lens including a convex front surface 11 and a concave rear surface 12, but it could also be a concave-convex lens or a plano-convex lens.

[0046] As shown in Figure 1, two similar spectacle lenses 10, namely the right spectacle lens 10R and the left spectacle lens 10L, are used for the wearer's right eye E R and left eye E L It is intended to be attached to the eyeglass frame 20 so as to be positioned in front of the lens. The combination of two similar eyeglass lenses 10 and the frame is also called eyewear or eyeglasses.

[0047] The spectacle lens 10 shown in Figure 2 has two opposite optical surfaces, namely the front surface 11 facing the object and the wearer's eye E R , E L It has a rear surface 12 that is closest to the vertex. The spectacle lens 10 exhibits a center V10, which is typically the optical or geometric center of the spectacle lens 10.

[0048] The eyeglass lens 10 has an optical design that includes macro optical components and micro optical components.

[0049] The macro-optical component of the optical design (also called the "macro-optical design") provides a macro-optical function that provides at least one overall refractive power across most or all useful surfaces of the spectacle lens 10, providing refractive correction to the wearer's eye that is suited to the wearer's refractive correction needs under wearing conditions. For example, this macro-optical function is provided by the geometric shape of the front surface 11, the rear surface 12, or both surfaces, typically by adapting the radius of curvature of one or both surfaces of the spectacle lens. The refractive power of the spectacle lens 10 is generally within ±15 diopters.

[0050] The refractive power provided by macro-optical design includes at least spherical power and may also include cylindrical power and prism deviation power, depending on the wearer's corrective needs determined by an eye care professional to correct the wearer's visual impairment. Typically, the overall refractive power corresponds to refractive correction based on the wearer's prescription under standard wearing conditions, for example. For example, a prescription for a wearer with refractive errors includes a refractive power value and an astigmatism value including the axes of distance and / or near visual acuity.

[0051] The spectacle lenses as defined in this disclosure are fitted to correct the visual acuity of an individual (i.e., the wearer) in a worn state. Wearing conditions should be understood as the position of the spectacle lens 10 within the spectacle frame 20 worn by the wearer in front of their eyes. Wearing conditions are defined according to the wearer's physiological parameters or the geometric parameters of the frame 20 when the frame 20 is worn by the wearer. Wearing conditions include the angle of tilt in wear, interlenicular distance, interpupillary distance, interpupillary distance at the point of rotation (ERC), and curvature. Figure 1 shows a pair of spectacle lenses numbered 10R and 10L. Spectacle lens 10R is in the wearer's right eye E R The spectacle lens 10L is worn in front of the wearer's left eye E L It is worn in front of the ear.

[0052] In this disclosure, the distance between the rear surface 12 defined along the optical axis z of the spectacle lens and the ERC is 26 mm, and the rear surface of the spectacle lens is 1.00 mm away from the front surface of the spectacle lens. The distance from the pupil of the eye to the front surface of the spectacle lens is approximately 13 mm. Of course, this value is given as a guideline, and this value may vary from person to person.

[0053] An example of a standard fit may be defined by a fitting anterior tilt angle of -8° for adults or 0° to 5° for children, a corneal-to-lens distance of 12 mm, a pupil-to-corneal distance of 2 mm, an ERC-to-pupillary distance of 11.5 mm, and a tilt angle of 0°.

[0054] The forward tilt angle when wearing the glasses is the angle in the vertical plane between the normal to the rear surface 12 of the spectacle lens 10 and the visual axis of the eye (axis A) in the first eye position, which is defined as the horizontal direction when the wearer gazes directly ahead at infinity.

[0055] The inter-lens distance is the distance between the cornea and the posterior surface 12 of the spectacle lens 10, along the visual axis of eye E in the primary eye position.

[0056] The curvature angle of the eyeglass frame 20 is the angle in the horizontal plane between the normal to the center of the rear surface 12 of the lens and the sagittal plane.

[0057] The micro-optical components of the optical design (also called "micro-optical design") of the eyeglass lens 10 are made from several micro-optical elements 13 arranged on at least one of the front and rear surfaces of the lens, preferably on the convex front surface.

[0058] Each micro-optical element has its own optical function and has small dimensions of less than 2 mm, preferably less than 1 mm. Each micro-optical element consists of, for example, a microlens, a pie-fresnel lens, a prism, a diffuser, a beam splitter, or a diffraction grating. Micro-optical elements are typically formed by photolithography, holography, molding, machining, or encapsulation.

[0059] This arrangement of all micro-optical elements is separate from the macro-optical function and provides a complementary micro-optical function. Therefore, the overall optical function of the spectacle lens 10 is the sum of the macro-optical function and the micro-optical function provided by the macro-optical and micro-optical components of its optical design, respectively. The micro-optical function of the spectacle lens 10 is the optical function provided by a spectacle lens 10 that does not have a macro-optical design, that is, a spectacle lens 10 that has no overall refractive power over most or all of its useful radial width. The macro-optical function of the spectacle lens 10 is the optical function provided by a spectacle lens 10 that does not have a micro-optical design, that is, a spectacle lens 10 that does not have any micro-optical elements.

[0060] Each micro-optical element provides refraction, diffraction, or diffusion functions.

[0061] In one embodiment, some or all of the micro-optical elements are refractive micro-optical elements. Each refractive micro-optical element may include a single-focus or bifocal spherical refractive power.

[0062] In other embodiments, some or all of the micro-optical elements are diffractive. Each diffractive micro-optical element includes, for example, a diffractive Pi Fresnel microlens. The diffractive Pi Fresnel microlens has a phase function that exhibits a phase jump of π at a nominal wavelength λ0. The wavelength λ0 is preferably 550 nm for applications to human vision. The diffractive Pi Fresnel microlens has an optical axis passing through the optical center of the microlens. Microlenses having a diffractive Pi Fresnel micro-optical element primarily diffract at two diffraction orders associated with two refractive indices P0(λ0) and P1(λ0). Thus, upon receiving collimated light, the microlens focuses the light into two distinct regions on their axes.

[0063] For example, the refractive power P0(λ0) is within a range of + / -0.12 diopters, in addition to the spherical-toric refractive power of a given refractive power of the spectacle lens derived from the wearer's prescription.

[0064] According to one embodiment, the refractive power P1(λ0) is in the range of 1 diopter to 10 diopters in absolute value. Preferably, the refractive power P1(λ0) is in the range of ±2 diopters to ±6 diopters.

[0065] Alternatively, all or part of the micro-optical elements are diffuse micro-optical elements. Each diffuse micro-optical element is configured to scatter light. For example, collimated light is scattered in a conical shape with an apex angle in the range of ±1° to ±40°. In some examples, the diffuse micro-optical element is configured to scatter light locally, i.e., at the intersection of a particular micro-optical element and the wavefront reaching that particular micro-optical element. Micro-optical elements having diffuse optical properties may be similar to the micro-optical elements described in U.S. Patent No. 1,0302,962.

[0066] Each micro-optical element 13 has a micro-optical axis Cm. Typically, the micro-optical axis Cm of a particular micro-optical element corresponds to the rotation axis or optical axis of the micro-optical element.

[0067] In the example shown in the figure, all the micro-optical elements 13 are positioned on the front surface 11 of the spectacle lens 10.

[0068] Alternatively, all or part of the micro-optical elements may be placed on the rear surface 12 of the spectacle lens 10, or on both the front surface 11 and the rear surface 12.

[0069] Alternatively, all or part of the micro-optical elements can be embedded within the thickness between the front and rear surfaces of the spectacle lens.

[0070] In practice, the micro-optical elements are formed (typically by injection molding, press molding, rolling, or machining) as a single, integrated part with the rest of the spectacle lens, or alternatively, on a film (forming a patch or being laminated) applied to one or both of the front 11 and rear 12 surfaces of the spectacle lens 10.

[0071] The eyeglass lens 10 is positioned to suppress the progression of myopia.

[0072] In a non-limiting example, the arrangement of the micro-optical elements 13 in the spectacle lens 10 has optical features that provide a function to suppress the progression of myopia in the wearer's eye. In other words, each of the micro-optical elements 13 in the spectacle lens 10 has optical features designed to suppress the progression of myopia.

[0073] According to one embodiment, the arrangement of micro-optical elements in an eyeglass lens is made to provide a specific spatial dispersion of blur, also known as a focus defocus effect. For this purpose, the micro-optical elements include microlenses that provide a refractive power different from that of the macro-optical components of the optical design of the eyeglass lens 10.

[0074] As shown in Figure 3, the spectacle lens 10 typically includes an ophthalmic lens center V10, which is the optical or geometric center of the spectacle lens 10. The spectacle lens 10 can also be defined using a first orthogonal reference coordinate system (V10, x, y, z), in which case the transverse axis z passes through the oculorotation point ERC of the wearer's eye E. In the following example, the transverse axis z of the spectacle lens corresponds to the optical axis of the spectacle lens.

[0075] As illustrated in Figure 3, the central line of sight direction is defined by two angles (αC, βC) that represent the rotation of the eye from the line of sight direction in the primary gaze position. More precisely, angles βC and αC represent the horizontal and vertical rotation angles applied to the oculovyl rotation point ERC in Fick's coordinate system to move the eye from the line of sight reference axis to the eye's line of sight axis, respectively. A third torsional rotation of the eye, derived from these two angles, is applied so that the eye's line of sight axis conforms to Listing's law. Figure 3 shows an example of angles αC and βC with respect to the oculovyl rotation point ERC and the spectacle lens 10. The central line of sight direction can be represented by a line passing through the oculovyl rotation point ERC.

[0076] Angle αC is defined in the vertical plane passing through the point of occultation ERC, and angle βC is defined in the horizontal plane passing through the point of occultation ERC. Angle αC is defined as positive when the wearer's eye is looking downwards and negative when the wearer's eye is looking upwards. Angle βC is defined as positive when the wearer's eye is looking nasally and negative when the wearer's eye is looking temporally.

[0077] This disclosure presents different regions of an eyeglass lens. Generally, the different parameters relating to these different regions are identified or defined based on the projection of the region onto a plane perpendicular to the optical axis of the eyeglass lens.

[0078] First example With respect to Figures 4-9, a spectacle lens 10 of the first example of this disclosure is disclosed. The elements shown in Figures 4 and 5 are orthogonal projections. The same applies to other examples of this disclosure when the spectacle lens is projected onto a projection plane. Thus, each region or element shown in these figures (projection diagrams) is an orthogonal projection of a particular region or a particular element of the spectacle lens. For simplicity, the term “orthogonal projection” is not used to describe the spectacle lens shown on the projection plane.

[0079] Figures 4 and 5 show only one example of the arrangement of micro-optical elements on an eyeglass lens. Several other configurations are possible, for example, as shown in Figures 11, 12, and 17. As disclosed below, the micro-optical elements do not necessarily have to be arranged on a concentric ring, and in other embodiments, the micro-optical elements do not have to be continuous.

[0080] The spectacle lens 10 shown in Figure 4 includes a central region 14, which does not contain any micro-optical elements and has a circular contour 17 with a radius of, for example, 4.5 millimeters, centered on the ophthalmic center V10 of the spectacle lens 10. In some modified forms, the contour of the central region 14 may take on other shapes such as polygons (particularly hexagons) or ellipses.

[0081] The spectacle lens 10 further includes a first peripheral region 15 arranged around a central region 14, and a second peripheral region 16 arranged around the first peripheral region 15.

[0082] In the example shown in Figure 4, the micro-optical elements 13 of the eyeglass lens 10 are arranged on the first peripheral region 15. There are no micro-optical elements in the second peripheral region 16.

[0083] The first or second "peripheral region" refers to a specific area of ​​the spectacle lens.

[0084] The second peripheral region 16 of the eyeglass lens 10 is positioned to be fixed to the eyeglass frame 20.

[0085] The central region 14, the first peripheral region 15, and the second peripheral region 16 are concentric. They are centered on the optical center of the spectacle lens 10. The first peripheral region 15 surrounds the central region 14, its inner boundary defined by the circular contour 17 of the central region 14, and its outer boundary defined by the circular contour 18. The second peripheral region 16 surrounds the first peripheral region 15, its inner boundary defined by the circular contour 18 of the first peripheral region 15, and its outer boundary defined by a circular contour 19 that can coincide with the outer edge of the spectacle lens 10, as shown in Figure 4.

[0086] In a non-limiting example, the radius of the circular contour 17 (which is the outer contour of the central region 14 and the inner contour of the first peripheral region 15) is 2.00 mm to 5 mm, preferably 3 to 4.5 mm.

[0087] Preferably, the diameter of the contour 18 (which is the outer contour of the first peripheral region 15 and the inner contour of the second peripheral region 16) is 40.0 mm to 80.0 mm, preferably 50.00 mm to 70.0 mm. This is an example of 60.0 mm in this embodiment. The diameter of the outer circular contour 19 of the second peripheral region 16 (which is the outer edge of the spectacle lens) is 80 mm to 100.00 mm (including any value between 80.00 mm and 100.00 mm), preferably 70.00 mm as shown in the figure example.

[0088] Naturally, in this example, the contour 17 of the central region 14, the contour 18 of the first peripheral region 15, and the contour 19 of the second peripheral region 16 are circular, but they can also exhibit other shapes, such as polygons (especially hexagons) or ellipses. Typically, the shapes of the contour 17 of the central region 14, the contour 18 of the first peripheral region 15, and the contour 19 of the second peripheral region 16 are determined by the shape of the spectacle lens 10.

[0089] In the examples shown in Figures 4 and 5, the micro-optical elements 13 are arranged according to concentric rings of adjacent micro-optical elements 13, centered at the center of a central region 14 that coincides with the center V10 of the spectacle lens 10. In this embodiment, the number of concentric rings depends on the size and shape of the spectacle lens 10. Thus, the spectacle lens 10 according to the first example may include other rings (at least two rings), for example, six, seven, or eight rings. Each ring is spaced 1.0 to 1.5 millimeters apart from each adjacent ring. In Figure 4, the spectacle lens 10 includes five concentric rings of micro-optical elements.

[0090] In this embodiment, the micro-optical elements of the spectacle lens 10 are all identical microlenses. Here, each micro-optical element 13 exhibits an average refractive power of approximately +4.5 diopters and is an aspherical micro-optical element. The diameter of each micro-optical element is approximately 1.12 millimeters, and its curvature is 131.3 millimeters. The average refractive power of the micro-optical elements is added to the prescribed correction of the spectacle lens 10.

[0091] The spherical mean refractive power means that the spherical refractive power of a micro-optical element can vary on the surface of the spectacle lens 10. For example, in this embodiment, micro-optical elements belonging to the same ring of micro-optical elements may have the same mean refractive power, while micro-optical elements belonging to different rings of micro-optical elements may have different mean refractive powers.

[0092] In Figures 4 and 5, the first peripheral region 15 includes a first region 21 having a circular shape with a diameter of 4 millimeters.

[0093] The first region 21 includes a portion or part of the micro-optical elements of the first peripheral region 15. Typically, the micro-optical elements included in the first region 21 are arranged to cover at least 30 percent of the total area of ​​the first region 21, where the density of micro-optical elements within the first region 21 is higher than 31 percent.

[0094] The first region has an outer contour 22 that indicates the geometric center U21. Typically, the geometric center U21 of the first region 21 is spaced at least 4 millimeters away from the ophthalmic center V10 of the spectacle lens 10. In Figure 5, the geometric center U21 of the first region 21 is aligned on the principal axis x of the spectacle lens and spaced 9.8 mm away from the ophthalmic center V10 of the spectacle lens 10. Hereafter, the first region 21 is defined in a Cartesian reference coordinate system (U21, x21, y21). Thus, the axis x of the spectacle lens 10 and the axis x21 of the first region 21 are aligned on the same line.

[0095] In this disclosure, the distance between the ophthalmic center V10 of the spectacle lens 10 and the geometric center of any region defined within the first peripheral region 15 is referred to as the eccentricity. Naturally, in modified forms, the first region 21 may be positioned with other eccentricities.

[0096] In Figures 4 and 5, the geometric center u 21 It is centered on one of the micro-optical axes Cm of the micro-optical elements included in the first region 21. Here, the geometric center u 21 The first region 21 is centered on the micro-optical axis Cma of the micro-optical element 13a, which is located on the second ring of the spectacle lens 10, starting from the center V10 of the spectacle lens 10. Naturally, in the modified form, the first region 21 can be centered on any of the micro-optical elements in the first peripheral region 15 of the spectacle lens 10.

[0097] The first peripheral region 15 further includes a second region 23 having a circular shape with a diameter of 4 millimeters.

[0098] The second region 23 includes a portion or part of the micro-optical elements of the first peripheral region 15. Typically, the micro-optical elements included in the second region 23 are arranged to cover at least 30 percent of the total area of ​​the first region.

[0099] In this first example, the density of micro-optical elements in the first region 21 differs from the density of micro-optical elements in the second region 23 by less than 30%, preferably less than 20%, and preferably less than 10%.

[0100] Here, the density of micro-optical elements in the second region 23 is higher than 40 percent. The positions of the micro-optical elements in the second region 23 are different from the positions of the micro-optical elements in the first region 21.

[0101] In this first example, the density of micro-optical elements in the first region 21 differs from the density of micro-optical elements in the second region 23 by more than 1%, preferably more than 5%.

[0102] Therefore, at least one characteristic of the first region 21 (e.g., the density of the micro-optical elements here) is different from the characteristic (here the density) of the second region 23.

[0103] The second region 23 has an outer contour 24 presenting a geometric center u 23 Typically, the geometric center u 23 of the second region 23 is at least 4 millimeters away from the ophthalmic center V10 of the spectacle lens 10. In FIG. 5, the geometric center u23 of the second region 23 is aligned on the main axis x of the spectacle lens 10 and is 10.95 mm away from the ophthalmic center V10 of the spectacle lens 10. Hereinafter, the second region 23 is defined in an orthogonal reference coordinate system (u 23 , x23, y23). Therefore, the axis x of the spectacle lens 10, the axis x21 of the first region 21, and the axis x23 of the second region 23 are aligned on the same line.

[0104] The geometric center u 23 of the second region 23 is centered at a point C located in the part of the first peripheral region 15 without micro-optical elements. Typically, the geometric center u 23 is centered at a point C positioned at the center between two adjacent rings of micro-optical elements starting from the center V10 of the spectacle lens 10, here at the center between the second and third rings of micro-optical elements. Therefore, the geometric center u 23 of the second region 23 is at least 0.5 millimeter, here at least 1.0 millimeter away from the geometric center u 21 of the first region 21. Typically, in this example, the axis y21 of the first region 21 is at least 1.0 millimeter away from the axis y23 of the second region 23.

[0105] Referring to FIGS. 6 and 9, the technical characteristics of the first region 21 and the second region 23 are disclosed. The technical characteristics of the first region 21 and the second region 23 are defined by their point spread functions.

[0106] In this disclosure, the point spread function (PSF) indicates the degree of spread (blurring) of a point object in the image across the entire selected area of ​​the spectacle lens 10.

[0107] The point spread function in this example is calculated for the first region 21 and the second region 23.

[0108] In this disclosure, a point spread function "on" or "over" a region means that the point spread function is measured or specified considering the entire surface of the region. In other words, a point spread function "on" or "over" a region means that the point spread function is measured or specified over the entire region.

[0109] When point spread functions of two regions are considered, they are naturally measured or identified in the same way, i.e., under the same conditions, so that they (or the values ​​derived from them, respectively) can be compared.

[0110] In the following disclosure, the point spread function can be measured directly using the optical system S described with respect to Figure 12.

[0111] System S includes a light capture device C, a light emitter I configured to generate a collimated beam CB of light, and an aperture P positioned on or very close to the spectacle lens 10 and used as a diaphragm to define the boundary of a first region 21 or a second region 23 where the point spread function is measured. Only rays of the collimated beam that have passed through the aperture P reach the light capture device. Here, the aperture P is positioned on or in front of the front surface F1 of the spectacle lens 10. In a variant of System S, the aperture P may be positioned on or behind the rear surface F2 of the spectacle lens 10.

[0112] In Figure 12, the spectacle lens 10 is positioned between the light-emitting device I and the light-catching device C. The light-emitting device I, aperture P, spectacle lens 10, and light-catching device C are aligned.

[0113] Light source I has a monochromatic or multichromatic visible spectrum from 400nm to 780nm (λ) and a high quality factor M close to 1. 2 This is a laser source. An advantage is that the collimated beam emitted by light source I has a wavelength of 540-560 nm, preferably 550 nm.

[0114] The collimated beam CB is generated by the light-emitting device I along an axis A that is sensually perpendicular to the surface normal of the spectacle lens 10, and the geometric center U of the first region 21. 21 Or the geometric center U of the second region 23 23 The center is positioned at [location]. As shown in Figure 12, the collimated beam illuminates the entire area of ​​the first region 21 or the second region 23 of the spectacle lens 10.

[0115] In Figure 12, the spectacle lens 10 is moved along a plane perpendicular to axis A, and different specific regions of the spectacle lens 10 are selected to measure the point spread function at different parts of the spectacle lens 10, here typically a first region 21 and then a second region 23 can be selected.

[0116] Since the spectacle lens 10 is illuminated by a collimated beam, the specified modulation transfer function does not substantially change even if the distance between the light-emitting device I and the spectacle lens 10 changes.

[0117] The light-capturing device C includes at least a lens L and an image sensor Sb. The positions of the lens L and the sensor Sb can be adjusted to scan the spectacle lens 10 along axis z (lateral axis) to consider different analysis planes. Typically, the distance between the rear surface of the spectacle lens (along the principal axis z) and the surface of the sensor may be 26 mm. This distance can be varied to scan the spectacle lens along the x-axis.

[0118] The sensor Sb is configured to capture an image acquired by a collimated light beam generated by the light source I and passing through the spectacle lens 10. Based on this captured image, the point spread function (PSF) can be determined.

[0119] In other embodiments, the point spread function of a first region 21 or a second region 23 of the spectacle lens 10 is determined by measuring the surface relief of the surface of the spectacle lens 10 containing the micro-optical elements, in this case the front surface 11 of the spectacle lens 10. Typically, the surface relief of a surface can be determined using an interferometer. The difference in optical path lengths between two points belonging to the selected region (first region 21 or second region 23) is determined. For this purpose, the optical path difference (OPD) of each point on the surface of the spectacle lens 10 can be obtained by multiplying the surface relief, denoted as Z(x, y), by a refractive index change Δn corresponding to the difference in refractive index between the materials on both sides of the surface containing the micro-optical elements. In a modified form, the point spread function can also be calculated on different planes of the spectacle lens 10.

[0120] In the modified form, the simulated point spread function is estimated before the manufacturing process of the spectacle lens 10. In this case, the first region 21 or the second region 23 of the spectacle lens 10 is selected by a simulated aperture P' (i.e., diaphragm) positioned on the optical design of the spectacle lens 10, or by projecting the pupil P' of the eye onto the spectacle lens 10. In either case, the center of the diaphragm P' or projection is centered on the wearer's possible central line of sight, for example, the wearer's possible central gaze line of sight that falls within 0 to 20 degrees, defined by the two radial directions (axes x, y) of the spectacle lens 10. As shown in Figure 3, the aperture P' is centered on a point indicating the central line of sight direction defined by two angles (αC, βC). The aperture P' has a shape that coincides with the shape of the first region 21 or the second region 23. Therefore, aperture P' indicates a geometric center that coincides with the geometric center U21 of the first region 21 when the modulation transfer function is estimated through the first region 21, and aperture P' indicates a geometric center that coincides with the geometric center U23 of the second region 23 when the modulation transfer function is estimated through the second region 23.

[0121] In this disclosure, the center of the diaphragm P or the simulated aperture P' is centered on the wearer's conceivable central line of sight, for example, the wearer's conceivable central line of sight that falls within 0 to 20 degrees, defined by the two radial directions (axis x and axis y) of the spectacle lens 10. Typically, such angles correspond to a point located at a distance of 0 to 30 millimeters from the center V10 of the spectacle lens 10, which typically corresponds to the line of sight position in the spectacle lens 10 when reading with a single-vision lens.

[0122] Regarding the method described above, the point spread function of different specific regions of the spectacle lens 10 (here, the first region 21 and the second region 23) can be calculated by spatially scanning the field of view of the spectacle lens 10 using a simulated aperture P' or projection P' defined for several central line of sight directions. This makes it possible to measure the point spread function according to different degrees of eccentricity in the line of sight directions. In this disclosure, the aperture P' that defines the boundaries of the specific regions (here, the first region 21 or the second region 23) has a circular shape with a diameter ranging from 4 mm to 8 mm, simulating the wearer's normal pupil size, particularly its variation under different simulated lighting environments.

[0123] The density of micro-optical elements in the portion selected via the aperture (here, the first region 21 or the second region 23) is at least 30%, typically ranging from 60% to 100% if the micro-optical elements are continuous, and from 30% to 50% if the micro-optical elements are not continuous.

[0124] Here, a point spread function is calculated that gives the degree of image spread (blurring) of a point object across the entire first region 21 and second region 23 of the spectacle lens 10.

[0125] The point spread function is calculated by a simulation known to those skilled in the art, using a point light source emitting in a monochromatic or polychromatic visible spectrum from 400 nm to 780 nm (λ) in a typically ideal Gaussian form (M2=1) centered at the center V10 of the spectacle lens 10. For each wavelength λ, the point spread function is calculated as the square of the amplitude of the inverse Fourier transform of the aperture function P'(x,y) defined as P'(x,y)=A(x,y)exp(ikOPD(x,y)), which simulates the aperture P' by simulation, where k is the wavenumber (2π / λ), λ is preferably the wavelength of the point light source equal to 550 nm, A(x,y) is the amplitude of the pupillary function which is equal to 1 inside the pupil (defined by its diameter and center position) and equal to 0 outside the pupil, and OPD(x,y) corresponds to the optical path difference provided by the spectacle lens 10.

[0126] In Figures 6 and 7, the point spread function is calculated or measured at a wavelength of 550 nm in the first region 21, and in Figures 8 and 9, the point transfer function is calculated or measured at a wavelength of 550 nm in the second region 23.

[0127] As explained below, the point spread function can estimate different degrees of eccentricity, for example, eccentricity ranging from 4 mm to 30 mm when there are no micro-optical elements in the central region 14 of the spectacle lens 10. If the central region 14 of the spectacle lens 10 contains micro-optical elements, the point spread function can further estimate lower degrees of eccentricity, for example, ranging from 0 (central line of sight direction) to 4 mm.

[0128] In this disclosure, distances described on a projection plane (shown in Figure 4, also called an orthogonal projection plane) may also be expressed as angles or angular distances. An angular distance (also known as an angular interval) is the angle between two points or two objects as seen from the observer. In other words, an angular distance can be deviated from by proving the angular distance between two distant points on an eyeglass lens, defined with respect to a point away from the lens. Typically, here, the angular distance is defined with respect to the center of the pupil of the eye, or with respect to the rotation point of the eye (ERC). In the following example, the angular distance between two points on the eyeglass lens is defined with respect to the ERC of the eye under consideration.

[0129] By using angular distance, it becomes possible to take into account the dimensions related to the wearer's eye. For this purpose, in this disclosure, angular distance can be measured as the angle defined within the retina (or sensor) and the focal point of the eye (which has been conventionally established to be 16 mm) (or the focal point of the camera lens used).

[0130] Therefore, in this disclosure, the point away from the spectacle lens (used as a reference point for calculating angular distance) can be defined solely on the spectacle lens itself, instead of being the pupillary center or ERC of the eye. In fact, the point away from the spectacle lens can also be defined as the focal point or image point of the spectacle lens. The point away from the spectacle lens is, for example, a point located 16 mm behind the spectacle lens (e.g., from its optical rear surface) on a straight line passing through the optical center of the spectacle lens, as described above. In practice, such a reference point can be used when analyzing the spectacle lens on an optical bench to position the sensor.

[0131] As a result, by identifying the tangent to the angular distance, it becomes possible to determine the angular distance (the angle considered in this case).

[0132] In practice, in the following measurements, the angular distance is expressed as the angular distance separating two points on the spectacle lens with respect to the ERC.

[0133] Since the first and second regions can be defined on the rear surface 12 or front surface 12 of the spectacle lens, the distance used to determine the tangent of the angular distance (on the adjacent side) depends on the distance between the ERC and the rear surface or front surface of the spectacle lens.

[0134] As shown in Figure 5, the spectacle lens 10 includes a first region 21 and a second region 23. It can be seen that each region 21, 23 further includes an annular portion (the annular portion included in the first region 21 is called the first annular portion L21, and the annular portion included in the second region is called the second annular portion L23). In this disclosure, the first annular portion is the center u of the first region 21 21 The axis AX passes through and intersects with the ERC. 21 The center is located at the top. The first annular portion is the axis AX of the first region 21. 21 It is defined by a series of points that are angularly distanced from it. For example, when looking at the annular portion on the front or rear surface of an eyeglass lens, all points on the first annular portion L21 on the rear or front surface of the eyeglass lens are defined by the center u of the first region 21. 21 (or axis AX) 21 It is the same distance away from ). In fact, the aforementioned distance is defined with respect to the ERC, from the center u of the first region 21 21 (or axis AX) 21 It can be expressed by the angular distance corresponding to the angle formed between the lens and a specific point on the annular portion (on the surface of the spectacle lens).

[0135] Similarly, the second annular portion L23 is at the center u of the first region 21. 21 Passing through, the center u of the second region 23 23 Axis AX intersects with ERC above. 23 Centered at the top, it is defined by a series of points in the first region 23. On the front or rear surface of the spectacle lens, all points of the second annular portion L23 are centered at the center u of the first region 23. 23 (or axis AX) 23 It is the same distance (angular distance) away from ). In reality, the distance is defined with respect to ERC. The center u of the second region 23 23It can be expressed by the angular distance corresponding to the angle formed between the lens and a specific point on the annular portion of the surface of the spectacle lens.

[0136] Typically, the first annular portion L21 and the second annular portion L23 on the front or rear surface of the spectacle lens have a closed curve shape.

[0137] In this disclosure, each annular portion has a form that depends on the curvature of the spectacle lens 10. However, when the spectacle lens 10 is projected onto a facial plane (projection plane) perpendicular to the principal axis (axis z) of the spectacle lens 10 (as shown in Figure 5), the annular portion has a circular shape.

[0138] In this embodiment, the first region has only one annular portion L21, but the first region 21 has a center u 21 The second region 23 may include other annular sections defined by points at an angular distance from the first region 23. Similarly, the second region 23 may include other annular sections, each of which is defined by the center u of the first region 23. 23 It may include points defined by an angular distance from a point.

[0139] In this disclosure, the region is defined as a specific portion of the first peripheral region 15, but it is obvious that these regions can also be defined in other parts of the spectacle lens 10, insofar as those parts include micro-optical elements.

[0140] Figure 6 shows a graphical representation of the point spread function calculated over the entire first region 21 of the first peripheral region 15 of the spectacle lens 10. Figure 6 also shows the first cross-section a21 passing through the first center of the first region 21 and parallel to the optical axis of the spectacle lens 10, and the third cross-section b21 of the first region passing through the center of the first region and parallel to the optical axis of the spectacle lens. As shown in Figure 6, the first and second cross-sections are orthogonal.

[0141] In another example, the sensor resolution exhibiting the point spread function is 3840 x 2160 pixels, and the pixels are 2 μm (in both directions).

[0142] Figure 7 shows the following: - The first curve 1001 shown in Figure 6 corresponds to the point spread function along the cross-section of the first region by the first cross-section a21 of the first region. - The second curve 1002, shown in Figure 6, corresponds to the point spread function along the cross-section of the first region by the third cross-section b21 of the first region.

[0143] Figure 8 shows a graphical representation of the point spread function calculated over the entire second region 23 of the first peripheral region 15 of the spectacle lens 10. Figure 8 also shows a second cross-section a23 passing through the first center of the second region 23 and parallel to the optical axis of the spectacle lens 10, and a fourth cross-section b23 of the second region 23 passing through the center of the second region and parallel to the optical axis of the spectacle lens.

[0144] Figure 9 shows the following: - The first curve 2001, shown in Figure 8, corresponds to the point spread function along the cross-section of the second region by the second cross-section a23. - The second curve 2002, shown in Figure 8, corresponds to the point spread function along the cross-section of the second region by the fourth cross-section b23.

[0145] Each of the curves shown in Figures 7 and 9 is the maximum value M. q It reaches where q is the exponent corresponding to the reference sign of the corresponding curve (here, for the first curve 1001 measured on the first region 21, M 1001 For the second curve measured in the second region, M 1002 In practice, the point spread function of an eyeglass lens measured over a specific region reaches (or has) a maximum value corresponding to the center of the region in which the point spread function is measured.

[0146] As mentioned above, the distance on the sensor is measured directly from the pixel size (2 μm x 2 μm). In this disclosure, the same sensor is used in different embodiments.

[0147] Other measurements can be extracted from the curves shown in Figures 7 and 8. Typically, the total width, which falls within 10 percent (10%) to 90 percent (90%) of the maximum value of the curve under consideration, can also be extracted, and this includes the maximum value M of the curve under consideration. q This includes all of the following percentages: 20 percent (20%), 30 percent (30%), 40 percent (40%), 50 percent (50%), 60 percent (60%), 70 percent (70%), and 80 percent (80%).

[0148] In Figures 6 and 8, the maximum value of the point spread function at the center of each particular point spread function corresponds to the value of the point spread function at the center of a particular region.

[0149] However, in one embodiment, the point spread function of the first region is the center u of the first region 21. 21 It may have at least one local maximum far from the center of the first region u. Typically, at least one local maximum may be defined by an angular distance that falls between 0.0107° and 0.0895°, where the angular distance is such that, with respect to the ERC, the center of the first region u 21 It is defined between the point spread function of the second region and the location of a specific local maximum within the first region. Similarly, the point spread function of the second region is defined between the center u of the second region 23. 23 It may have at least one local maximum far from the center of the second region u. Typically, at least one local maximum may be defined by an angular distance that falls between 0.0107° and 0.0895°, where the angular distance is such that, with respect to the ERC, the center of the second region u 23 It is defined between the second region and the location of a specific local maximum.

[0150] Comparison of changes in the point spread function along two cross-sections of the same region. Regarding the first region 21, Figure 7 shows the full width at half maximum (FWHM) of the first curve 1001 in the first region 21. a21 And the full width at half maximum (FWHM) of the second curve 1002 in the first region 21. b21 The difference is found to be less than 50%, preferably less than 40%, or less than 30%, or less than 25%. Similarly, the full width at half maximum (FWHM) of the first curve 1001 in the first region 21. a21This is the full width at half maximum (FWHM) of the second curve 1002 in the first region 21. b21 The difference is by more than 5%, preferably more than 10%, or more than 10%, or more than 15%. In particular, in Figure 7, the full width at half maximum (FWHM) of the first curve 1001. a21 This is the full width at half maximum (FWHM) of the second curve 1002 in the first region 21. b21 The difference is less than 25% (24% here) of the full width at half maximum (FWHM) of the second curve 1002 in the first region 21. b21 It can be seen that it differs by more than 15% (19% in this case). Therefore, the change in the point spread function defined along the first cross-section a21 of the first region 21 is approximately the same as the change in the point spread function defined along the third cross-section b21 of the first region 21.

[0151] Regarding the second region 23, Figure 9 shows the full width at half maximum (FWHM) of the first curve 2001 in the second region 23. a23 And the full width at half maximum (FWHM) of the second curve 2002 in the second region 23. b23 The difference is found to be less than 50%, preferably less than 40%, or less than 30%, or less than 25%. Similarly, the full width at half maximum (FWHM) of the first curve 2001. a23 This is the full width at half maximum of the second curve 2002 in the second region 23. b23 The difference is by more than 5%, preferably more than 10%, or more than 10%, or more than 15%, or more than 20%, or more than 30%, or more than 35%. In particular, in Figure 9, the full width at half maximum (FWHM) of the first curve 2001 in the second region 23. a23 This is the full width at half maximum (FWHM) of the second curve 2002 in the second region 23. b23 It differs by less than 40% (38% here) in the second region 23 and the second curve 2002, and the full width at half maximum (FWHM) b23 It can be seen that it differs by more than 20% (28% in this case). Therefore, the change in the point spread function defined along the second cross-section a23 of the second region 23 is approximately the same as the change in the point spread function defined along the fourth cross-section b23 of the second region 23.

[0152] Comparison of the change in the point spread function along the first cross-section of the first region and the change in the point spread function along the second cross-section of the second region. By comparing the first curve 1001 associated with the first region 21 and the first curve 2001 associated with the second region 23, the full width at half maximum (FWHM) of the first curve 1001 identified in the first region 21 is determined. a21 It can be seen that it has at least one of the following characteristics: - Full width at half maximum (FWHM) of the first curve 2001 identified in the second region. a23 A value that differs by less than 40%, preferably less than 30%, preferably less than 15% (in this case less than 10%), - Full width at half maximum (FWHM) of the first curve 2001 identified in the second region. a23 A value that differs by more than 1%, preferably more than 5%, and preferably more than 10% (10% in this case).

[0153] Therefore, it can be seen that the change in the point spread function of the first region 21 defined along the first cross-section a21 is approximately the same as the change in the point spread function of the second region 23 defined along the second cross-section a23.

[0154] By comparing the first curve 1001 associated with the first region 21 and the first curve 2001 associated with the second region 23, the maximum value M of the first curve 1001 in the first region is found. 1001 It can be seen that the overall width at 20% has at least one of the following characteristics: - Maximum value M of the first curve 2001 in the second region 23 2001 A value that differs by less than 40% of the total width at 20%, preferably less than 30%, preferably less than 15% (less than 10% in this case), - Maximum value M of the first curve 2001 in the second region 23 2001 A value that differs by more than 1%, preferably more than 5%, and preferably more than 10% (10% in this case) of the total width at 20 percent.

[0155] Comparison of the change in the point spread function along the third cross-section of the first region and the fourth cross-section of the second region. Similarly, the full width at half maximum (FWHM) of the second curve 1002 in the first region 21. b21It can be seen that it has at least one of the following characteristics: - Full width at half maximum (FWHM) of the second curve 2002 in the second region 23 b23 A value that differs by less than 40%, preferably less than 30%, preferably less than 15% (here less than 7% or 5%), - Full width at half maximum (FWHM) of the second curve 2002 in the second region 23 b23 A value that differs by more than 1%. Therefore, it can be seen that the change in the point spread function of the first region 21 defined along the third cross-section b21 is approximately the same as the change in the point spread function of the second region 23 defined along the fourth cross-section b23.

[0156] By comparing the second curve 1002 associated with the first region 21 and the second curve 2002 associated with the second region 23, the maximum value M of the second curve 1002 in the first region 21 is found. 1002 It can be seen that the overall width at 20% has at least one of the following characteristics: - Maximum value M of the second curve 2002 in the second region 23 2002 A value that differs by less than 40% of the total width at 20%, preferably less than 30%, preferably less than 15% (less than 10% in this case), - Maximum value M of the second curve 2002 in the second region 23 2002 A value that differs by more than 1%, preferably more than 5%, and preferably more than 10% (10% in this case) of the total width at 20 percent.

[0157] Second example Referring to Figures 10A, 10B, and 11, a second example of an eyeglass lens 30 according to this disclosure is disclosed.

[0158] The spectacle lens 30 shown in Figures 10A and 10B is the same as the spectacle lens shown in Figure 4, except that the spectacle lens 30 includes 11 concentric rings of micro-optical elements. Therefore, only the differences from Figure 4 will be disclosed.

[0159] In Figure 10, the spectacle lens 30 (particularly the first peripheral region of the spectacle lens) includes a first region 31, a second region 33, and a third region 37. In this example, each of the first region 31, the second region 33, and the third region 37 has a micro-optical element that covers at least 30% of its respective region. Each region has a center that is different from the center of the other regions.

[0160] Typically, in this example, the distance between the center of the lens on the rear surface (point O) and the center of the first region 31 is 7.5 mm, the distance between the center of the lens on the rear surface (point O) and the center of the second region 33 is 10.1 mm, and the distance between the center of the lens on the rear surface (point O) and the center of the third region 37 is 14.4 mm.

[0161] As shown in Figure 10A, the spectacle lens 30 includes a first region 31, a second region 33 (not shown in this figure), and a third region 37. It can be seen that each region further includes an annular portion (the annular portion included in the first region 31 is called the first annular portion L31, the annular portion included in the second region is called the second annular portion L33, and the annular portion included in the third region 37 is called the third curve L37).

[0162] In this disclosure, the first annular portion L31 is the center u of the first region 31 31 The axis AX passes through and intersects with the ERC. 31 The center is located at the first annular part of the first region 31, at the center of the first region (here, axis AX). 31 It is defined by a point that is at a certain angular distance from ). On the front or rear surface of the spectacle lens, all points of the first annular portion L31 are defined by the center u of the first region 31. 31 It is the same distance (same angular distance) away from. In reality, the said distance is the center u of the first region 31 with respect to the ERC. 31 And, at a specific point in the annular section (here, the axis AY intersecting the ERC) 31This can be expressed by the angular distance (shown as D31 in Figure 10B) defined between the first annular portion L31 aligned above and point A31. In practice, this angular distance D31 corresponds to half the diameter of the annular portion (typically the radius of the annular portion L31 when the annular portion is projected onto the projection plane).

[0163] Similarly, the second annular portion L33 is defined by a point in the first region 33 that is located at an angular distance from the center of the second region. The second annular portion is defined by the center u of the second region 33. 33 The axis AX passes through and intersects with the ERC. 33 The center is located at u on the rear or front surface of the spectacle lens. All points of the second annular portion L33 are at the center u of the first region 33. 33 It is the same distance (angular distance) away from. In reality, the aforementioned distance is the center u of the second region 33 with respect to the ERC. 33 It can be expressed by the angular distance defined between the second ring and a specific point in the ring. In practice, this angular distance corresponds to half the diameter of the second ring.

[0164] In this disclosure, the third annular portion L37 is the center of the third region 37 (here, axis AX). 37 The third annular region is defined by a point located at a certain angular distance from the third region 37. 37 The axis AX passes through and intersects with the ERC. 37 The center is located at u. All points of the third ring are at the center u of the third region 37. 37 or axis AX 37 It is the same distance (angle distance) away from. In reality, the aforementioned distance is the center u of the third region 37 with respect to the ERC. 37 (Axis AX 37 ) and a specific point in the third part (here, the axis AY intersecting the ERC) 37 This can be expressed by the angular distance (shown as D37 in Figure 10B) defined between the third annular section L37 and point A37, which are aligned above. In practice, this angular distance D37 corresponds to half the diameter of the third annular section.

[0165] In this disclosure, each annular portion has a shape that depends on the curvature of the spectacle lens 30. However, when the spectacle lens 30 is projected onto a projection plane perpendicular to the principal axis of the spectacle lens 30, the annular portion has a circular shape.

[0166] In reality, this three-dimensional annular section has a frustoconical shape (in this example) that is positioned to extend along the extension axis (considering the height of the frustocone). The extension axis is oriented to intersect the ERC.

[0167] In this embodiment, the first region has only one annular portion L31, but the first region 31 may also have other annular portions, and each of these annular portions may be at the center u of the first region 31 21 (Here, axis AX) 31 It may include insofar as it is defined by a point at a certain angular distance from the first region 33. Similarly, the second region 33 may also include other annular parts, each of which is the center u of the first region 33. 23 (Here, the center u 23 It can include points defined by an axis passing through the ERC at a certain angular distance.

[0168] Each annular portion belonging to the same region is defined by a separate angular distance, so as to spatially scan a particular region. For example, if two first annular portions are defined within a first region, the edges of these two annular portions can be spaced at least 0.01°, preferably at least 0.02°, apart from each other. Naturally, for the purpose of comparing integral values ​​between the first and second regions, the comparison is made only with annular portions defined at the same angular distance.

[0169] In this disclosure, the region is defined as a specific part of the first peripheral region, but it is obvious that these regions can also be defined in other parts of the spectacle lens 10, insofar as those parts contain micro-optical elements.

[0170] Figure 10B shows only the first region 31 and the third region 37 for the sake of visibility.

[0171] In FIG. 10B, it can be seen that the dimension of the first region 31 can be represented by the angular distance (shown as K31) between two opposing points H1 and H2 included in the outer contour 32 of the first region 31 and defined with respect to the ERC. Similarly, the dimension of the third region 37 can be represented by the angular distance (shown as K37) between two opposing points I1 and I2 included within the outer contour 39 of the third region 37 and defined with respect to the ERC. The first annular portion L31 is included in the first region 31, and the third annular portion L37 is included in the third region 37.

[0172] In the present disclosure, the distance between the rear surface of the spectacle lens under consideration and the ERC defined along the optical axis z of the spectacle lens is 26 mm. The distance from the pupil of the wearer's eye to the front surface of the spectacle lens is approximately 13 mm. Similarly, since the rear surface of the spectacle lens 30 is considered to be spherical, the distance between the ERC and point u 31 is approximately 26 mm, and the distance between the ERC and point u 37 is approximately 26 mm. The same applies to the second region.

[0173] [[ID=)) Therefore, the angular distance associated with a particular annular portion can be found by determining the arctangent of the distance between the center of the particular region and a point on that particular annular portion, divided by the distance between the ERC and the center of that particular region. For example, in the case of the annular portion L31, the angular distance is specified by the following formula:

Equation

[0174] Comparison of the logarithmic change of the integral of the value of the point spread function along the annular portions included in the first, second, and third regions FIG. 11 shows a graphical representation as follows. - On the horizontal axis, the angular distance associated with the annular portion is shown, and each angular distance corresponds to the angle between the center of a particular region (in which a particular annular portion is included) and a point on the particular annular portion, defined with respect to the ERC (i.e., the angle corresponds to half of the diameter of the particular annular portion). - The y-coordinate represents the logarithmic base value of the point spread function. In this example, each value in the y-coordinate corresponds to the logarithm of the integral of the value of the point spread function along a specific ring section having the angular distance shown in the x-coordinate.

[0175] Therefore, this means that the value shown in the vertical coordinate is obtained by integrating all the values ​​of the point spread function defined in the annular region, which is related to the angular distance defined in the horizontal coordinate.

[0176] Figure 11 shows - The first curve 1031 corresponds to the change in the value of the integral (i.e., mean) of the point spread function identified along the ring portion contained in the first region 31, - The second curve 1033 corresponds to the change in the value of the integral of the point spread function identified along the ring portion contained in the second region 33. - Third curve 1037 corresponding to the change in the value of the integral of the point spread function identified along the ring portion contained in the third region 37. This indicates.

[0177] Each curve can be obtained by defining an annular region within a particular area, defined by points located at an angular distance defined with respect to the ERC from the center of that particular region. The mean point spread function associated with the annular region is determined by integrating all values ​​of the point spread function defined along that annular region. In practice, this corresponds to integrating the point spread function along a closed curve (circle) with a radius that corresponds to the angular distance of a particular annular region. Typically, this corresponds to integrating the values ​​of the point spread function along a circle defined by consecutive points of the point spread function, located at an angular distance equal to the angular distance defining a particular annular region, from the maximum value of the point spread function (corresponding to the center of a region). The same steps are performed for other annular regions corresponding to other angular distances. The total integral values ​​of the point spread function obtained for several angular distances yield the curves shown in Figure 11.

[0178] As a result, comparisons between different regions are made by comparing the y-coordinate values ​​of different curves obtained for the same angular distance. This means that comparisons between different regions are made by comparing the integral values ​​of the point spread function obtained along annular sections of the same dimensions (i.e., for the same angular distance).

[0179] The point spread function is observed to be maximum at the center of a particular region.

[0180] In Figure 11, the angular distance (corresponding to half the dimension of the annular section) falls within the range of 0° to 0.8°.

[0181] Note that an angular distance of 0.03° corresponds to the resolution of the human visual system.

[0182] For angular distances in the range of 0° to 0.2°, it is found that the difference between the logarithm of the integral of the value of the point spread function along the first annular part of the first region (defined for one of the angular distances in the range of 0° to 0.2°) and the logarithm of the integral of the value of the point spread function along the second annular part of the second region (defined for one of the angular distances in the range of 0° to 0.2°) is less than 15% (here less than 10%, in particular between 1% and 15% or 10%), and the logarithm of the integral of the value of the point spread function defined along the first annular part and the logarithm of the integral of the value of the point spread function defined along the second annular part are specified for the same angular distance (i.e., this means that the first annular part and the second annular part have the same dimensions and / or are defined by the same angular distance). In other words, this means that the difference between the value of the first curve 1031 defined within the angular distance range of 0° to 0.2° and the value of the second curve 1033 defined within the angular distance range of 0° to 0.2° is less than 15%. Similarly, the difference between the value of the first curve 1031 defined within the angular distance range of 0° to 0.2° and the value of the third curve 1037 defined within the angular distance range of 0° to 0.2° is less than 15%.

[0183] The same applies to the range of 0.2° to 0.4°. In the range of 0.45° to 0.8°, the difference between the value of the first curve 1031 and the value of the second curve 1033 or the third curve 1037 is less than 15%.

[0184] Third example Regarding Figures 13-14, a third example of spectacle lens 40 is disclosed in this disclosure. Only the differences from the first example will be explained.

[0185] In the third example, the spectacle lens 40 is divided into the following three regions: a central region 44, a first peripheral region 45, and a second peripheral region 46. The first peripheral region 45 includes the configuration of a micro-optical element 43 having at least one optical feature.

[0186] The optical features of the micro-optical element 43 in the first peripheral region 45 include at least one of the following optical features: refractive power, geometric shape, refraction, diffraction or diffusion optical function, focal length, diameter or size, and position.

[0187] The central region 44, the first peripheral region 45, and the second peripheral region 46 are concentric. They are centered on the optical center V40 of the spectacle lens 40. The first peripheral region 45 surrounds the central region 44, its inner boundary defined by the circular contour 47 of the central region 44, and its outer boundary defined by the circular contour 48. The second peripheral region 46 surrounds the first peripheral region 45, its inner boundary defined by the circular contour 48 of the first peripheral region 45, and its outer boundary defined by the circular contour 49 that coincides with the outer edge of the spectacle lens 40.

[0188] The outer circular contour 47 of the central region 44 has a diameter of 4 millimeters. The inner circular contour of the first peripheral region 45 has a diameter of 4 millimeters. The outer circular contour 48 of the first peripheral region 45 has a diameter of 60.0 millimeters. The inner contour of the second peripheral region 46 has a diameter of 60.0 millimeters, and the outer edge 49 has a diameter of 70.00 millimeters.

[0189] In this embodiment, the micro-optical element of the spectacle lens 40 is a continuous micro-optical element having a diameter of 0.60 millimeters and a refractive power of +4 diopters.

[0190] The first peripheral region 45 is - a first region 51 (U 51 , x 51 , y 51 ) having a circular shape with a diameter of 4 millimeters, - a second region 53 (U 53 , x 53 , y 53 ) having a circular shape with a diameter of 4 millimeters and includes.

[0191] Regarding the examples described above, the first region 51 and the second region 53 each include a part or portion of the micro-optical element of the first peripheral region 45. Typically, the micro-optical elements included in the first region 51 are arranged to cover at least 60 percent of the total area of the first region 51, and the micro-optical elements included in the second region 53 are arranged to cover at least 60 percent of the total area of the second region 53.

[0192] The first region 51 has an outer outline 52 centered on the micro-optical axis Cma of the micro-optical element 43a, which is 9.8 millimeters away from the center V40 of the spectacle lens 40. 51 and shows. [[ID=…]]

[0193] The second region 53 has an outer outline 54 showing a geometric center U 51 that is 0.10 millimeters to 2.00 millimeters (±0.075 mm) away from the geometric center U 53 of the first region 51. Here, the geometric center U 53 is 0.30 millimeters (±0.075 mm) away from the geometric center U 51 of the first region 21. In particular, the axis y 53 of the second region 53 is 0.30 millimeters away from the axis y 51 . The vertical axis x 51 of the first region 51This refers to the axis x of the main axis of the spectacle lens 40 and the axis x of the second region 53. 53 This matches the center U of the second region 53. 53 The horizontal axis x 51 , x 53 The center U of the first region 51 along the line 51 It means being away from something.

[0194] Geometric center u of the first region 51 51 It is at least 8.4 millimeters away from the geometric center V40 of the spectacle lens 40.

[0195] Typically, the geometric center u 53 The geometric center u of the second region 53 is located at point D, which is situated between the edges of two consecutive micro-optical elements, designated 43a and 43b, respectively. 53 It is at least 8.7 millimeters away from the geometric center V40 of the spectacle lens 40.

[0196] The technical features represented by the PSF values ​​in the first region 51 and the second region 53 of this third example are the same as those in the first and second regions of the first example.

[0197] Fourth example Regarding Figures 15-19, a fourth example of spectacle lens 70 is disclosed in this disclosure. Only the differences from spectacle lenses 10, 30, and 40 disclosed above will be explained.

[0198] The spectacle lens 70, like the spectacle lenses 10, 30, and 40, includes a central region, a first peripheral region 75 arranged around the central region, and a second peripheral region arranged around the first peripheral region 75. Each region of the spectacle lens 70 is concentric. The central region and the second peripheral region do not contain micro-optical elements. In this example, the central region has a hexagonal contour. Typically, the contour of the central region has a size defined by a circle (here, a circle with a diameter of 4 millimeters) set within the hexagonal contour of the central region. Naturally, in other embodiments, the contour of the central region can be circular, as shown in the first and second examples.

[0199] The spectacle lens 70 includes a configuration of micro-optical elements 73 having a similar shape to the micro-optical elements 13 of the spectacle lens 10. These micro-optical elements 73 are located in a first peripheral region 75 of the spectacle lens 70. For example, the density of the micro-optical elements on the first peripheral region 75 of the spectacle lens 70 is 30-70 percent (including any value of 40%, 50%, 60%), or 40-70 percent, or 50-70 percent, or 40-60 percent, or 40-50 percent, depending on the characteristics of the micro-optical elements 73 (size, geometric shape, refraction, diffraction, or diffusion function, etc.). Typically, in the example shown in Figure 15, the density of the micro-optical elements on the first peripheral region 75 of the spectacle lens 70 is 40-60 percent.

[0200] In this embodiment, all micro-optical elements 73 of the spectacle lens 70 are identical. Each micro-optical element 73 has a diameter of 1.12 millimeters and a spherical refractive power of 3.5 diopters. Unlike spectacle lenses 10 or 40, each micro-optical element 73 is spaced at least 0.1 millimeters, or at least 0.2 millimeters, or at least 0.3 millimeters, or at least 0.4 millimeters, or at least 0.5 millimeters, or at least 0.6 millimeters, or at least 0.7 millimeters, or at least 0.8 millimeters, or at least 0.9 millimeters, or at least 1 millimeter from an adjacent micro-optical element 73. In this example, each micro-optical element 73 is spaced at least 0.5 millimeters from an adjacent micro-optical element 73. For example, the edge of one optical element 73 is spaced at least 0.5 millimeters from the edge of an adjacent optical element.

[0201] Similar to the spectacle lens 10 or 40, the first peripheral region 75 of the spectacle lens 70 shown in Figure 15 is a first region 81 (u) having a circular shape with a diameter of 4 millimeters. 81 , x 81 , y 81) and a second region 83(u 83 , x 83 , y 83 ) includes. The first region 81 and the second region 83 each include a portion or part of the micro-optical elements of the first peripheral region 75. Typically, the micro-optical elements included in the first region 81 are arranged to cover at least 30 percent, or at least 40 percent, or at least 50 percent, or at least 60 percent, or at least 70 percent of the total area of ​​the first region 81, and the micro-optical elements included in the second region 83 are arranged to cover at least 30 percent, or at least 40 percent, or at least 50 percent, or at least 60 percent, or at least 70 percent of the total area of ​​the second region 83. Here, the micro-optical elements included in the first region 81 are arranged to cover at least 30 percent of the total area of ​​the first region 81, and the micro-optical elements included in the second region 83 are arranged to cover at least 30 percent of the total area of ​​the second region 83.

[0202] The first region 81 is the geometric center U centered on the micro-optical axis Cme of the micro-optical element 73e, which is located 9.8 millimeters away from the center of the spectacle lens 70. 81 It has an outer contour 82 that shows this.

[0203] The second region 83 is the geometric center U of the first region 81. 81 Geometric center U, spaced 0.10 mm to 2.00 mm (±0.075 mm) from the center. 83 It has an outer contour 84 that shows the geometric center U. 83 This is the geometric center U of the first region 81. 81 It is spaced 0.85 millimeters (±0.075 mm) from the geometric center U. 83 It is centered at point E located between the edges of two adjacent micro-optical elements, namely micro-optical elements 73e and 73f, and another micro-optical element numbered 73f. Geometric center U of the second region 83 83is at least 8.00 millimeters away from the geometric center V70 of the spectacle lens 70. In this example, the axis x of the first region 81 81 coincides with the axis x of the spectacle lens 70 and the axis x of the second region 83 83 However, the axis y of the first region 81 81 is 0.85 millimeters away from the axis y 83 .

[0204] Referring to FIGS. 16 to 19, the technical features of the first region 81 and the second region 83 are disclosed. The technical features of the first region 81 and the second region 83 are considered through the point spread function calculated or estimated as described above in the first example.

[0205] FIG. 16 shows a graphical representation of the point spread function calculated over the entire first region 81 of the first peripheral region 75 of the spectacle lens 70. This is also shown in this FIG. 16. In this FIG. 16, a first cutting plane a81 passing through the first center of the first region 81 and parallel to the optical axis of the spectacle lens 70, and a third cutting plane b81 of the first region 81 passing through the center of the first region and parallel to the optical axis of the spectacle lens are also shown. - A first curve 5001 corresponding to the point spread function of the first region shown in FIG. 16 along the cross-section of the first region by the first cutting plane a81, and - A second curve 5002 corresponding to the point spread function of the first region shown in FIG. 16 along the cross-section of the first region by the third cutting plane b81

[0206] FIG. 18 shows a graphical representation of the point spread function calculated over the entire second region 83 of the first peripheral region 75 of the spectacle lens 70. In this FIG. 18, a second cutting plane a83 passing through the first center of the second region 83 and parallel to the optical axis of the spectacle lens 10, and a fourth cutting plane b83 of the second region 83 passing through the center of the second region and parallel to the optical axis of the spectacle lens are also shown.

[0207] FIG. 19 is - The first curve 6001, which corresponds to the point spread function of the second region shown in Figure 18, along the cross section of the second region passing through the second cross-section a83, and - The second curve 6002, which corresponds to the point spread function of the second region shown in Figure 18, along the cross-section of the second region passing through the fourth cross-section b83. This indicates.

[0208] As explained in the first example, other measurements can be extracted from the curves shown in Figures 17 and 19. Typically, the total width, which falls within 10 percent (10%) to 90 percent (90%) of the maximum value of the curve under consideration, can also be extracted, and this includes the maximum value M of the curve under consideration. q This includes all of the following percentages: 20 percent (20%), 40 percent (30%), 40 percent (40%), 50 percent (50%), 60 percent (60%), 70 percent (70%), and 80 percent (80%).

[0209] Each of the point spread function numbers in Figures 16 and 18 has a maximum value at the center of a particular point spread function, which corresponds to the value of the point spread function at the center of a particular region. The point spread function of an eyeglass lens measured over an entire region has a maximum value at the center of that region.

[0210] However, in one embodiment, the point spread function of the first region is the center u of the first region 81. 81 It may have at least one local maximum at a distance from the center of the first region u. Typically, at least one local maximum may be defined by an angular distance that falls between 0.0107° and 0.0895°, where the angular distance is such that, with respect to the ERC, the center of the first region u 81 It is defined between and the location of a specific local maximum within the first region. Similarly, the point spread of the second region is defined by the center u of the second region 83. 83 It may have at least one local maximum far from the center of the second region u. Typically, at least one local maximum can be defined by an angular distance that falls between 0.0107° and 0.0895°, where the angular distance is such that, with respect to the ERC, the center of the second region u 83It is defined between the position of a specific maximum value within the second region.

[0211] The angular distance range of 0.0107° to 0.0895° corresponds to the distance range of 3 μm to 25 μm defined within the orthogonal projection plane of the spectacle lens under consideration.

[0212] Comparison of changes in the point spread function along two cross-sections of the same region. Regarding the first region 81, Figure 19 shows the full width at half maximum (FWHM) of the curve 5001 of the plateau in the first region 81. a81 This is the full width at half maximum (FWHM) of the second curve 5002 in the first region 81. b81 It can be seen that it differs by less than 40%, preferably less than 30%, or less than 20%, or less than 10%, or less than 5% (less than 5% in this case). Similarly, the full width at half maximum (FWHM) of the first curve 5001 in the first region 81. a81 This is the full width at half maximum (FWHM) of the second curve 5002 in the first region 81. b81 The difference is by more than 0.5%, preferably more than 1%. In particular, in Figure 19, the full width at half maximum (FWHM) of the first curve 5001 in the first region 81. a81 This is the full width at half maximum (FWHM) of the second curve 5002 in the first region 81. b81 The difference is less than 5%, and the full width at half maximum (FWHM) of the second curve 5002 differs from the first region 81. b81 It can be seen that the difference is only slightly more than 0.5%. Therefore, the change in the point spread function defined along the first cross section a81 of the first region 81 is approximately the same as the change in the point spread function defined along the second cross section b81 of the first region 81.

[0213] Regarding the second region 83, Figure 21 shows the full width at half maximum (FWHM) of the first curve 6001 in the second region 83. a83 And the full width at half maximum (FWHM) of the second curve 6002 in the second region 83. b83 It can be seen that the difference is less than 40%, preferably less than 30%, or less than 20%, or less than 10%. Similarly, the full width at half maximum (FWHM) of the first curve 6001 in the second region 83. a83 This is the full width at half maximum (FWHM) of the second curve 6002 in the second region 83. b83The difference is by more than 1%, preferably more than 5%, or more than 6%. In particular, in Figure 21, the full width at half maximum (FWHM) of the first curve 6001 in the second region 83. a83 However, the full width at half maximum (FWHM) of the second curve 6002 in the second region 83 b83 It differs by less than 9% (8% here) in the second region 83 and the second curve 6002, and the full width at half maximum (FWHM) b83 It can be seen that the difference is only slightly more than 6%. Therefore, the change in the point spread function defined along the second cross-section a83 of the second region 83 is approximately the same as the change in the point spread function defined along the fourth cross-section b83 of the second region 83.

[0214] Comparison of the change in the point spread function along the first cross-section of the first region and the second cross-section of the second region. By comparing the first curve 5001 associated with the first region 81 and the first curve 6001 associated with the second region 83, the full width at half maximum (FWHM) of the first curve 5001 identified in the first region 81 is determined. a81 It can be seen that it has at least one of the following characteristics: - Full width at half maximum (FWHM) of the first curve 6001 identified in the second region 83 a83 A value that differs by less than 40%, preferably less than 35%, preferably less than 30% (in this case less than 30%), - Full width at half maximum (FWHM) of the first curve 6001 identified in the second region 83 a83 A value that differs by more than 10%, preferably more than 15%, and preferably more than 20% (23% in this case).

[0215] By comparing the first curve 5001 associated with the first region 81 and the first curve 6001 associated with the second region 83, the maximum value M of the first curve 5001 in the first region 81 is found. 5001 It can be seen that the overall width at 20% has at least one of the following characteristics: - The maximum value M of the first curve 6001 identified in the second region 83. 6001 A value that differs by less than 40% of the total width at 20%, preferably less than 30%, preferably less than 28%, - The maximum value M of the first curve 6001 identified in the second region 83. 6001 A value that differs by more than 10%, preferably more than 20%, and preferably more than 25% of the total width at 20 percent.

[0216] Comparison of the change in the point spread function along the third cross-section of the first region and the fourth cross-section of the second region. Similarly, the full width at half maximum (FWHM) of the second curve 5002 in the first region 81. b81 It can be seen that it has at least one of the following characteristics. - Full width at half maximum (FWHM) of the second curve 6002 in the second region 83 b83 Only less than 40% of the values ​​differ, - FWHM at half maximum of the second curve 6002 in the second region 83 b83 A value that differs by more than 10% or more than 20%.

[0217] By comparing the second curve 5002 associated with the first region 81 and the second curve 6002 associated with the second region 83, the maximum value M of the second curve 5002 in the first region 81 is found. 5002 It can be seen that the overall width at 20% has at least one of the following characteristics: - Maximum value M of the second curve 6002 in the second region 83 6002 A value that differs by less than 40% of the total width at 20%, preferably less than 30%. - Maximum value M of the second curve 6002 in the second region 83 6002 A value that differs by more than 10%, preferably more than 20%, and preferably more than 23% of the total width at 20 percent.

[0218] Fifth example In relation to Figures 20 and 21, a fifth example of an eyeglass lens 80 according to this disclosure is disclosed.

[0219] Typically, in this example, the distance between the center of the lens on the rear surface (point O) and the center of the first region 86 is 7.5 mm, the distance between the center of the lens on the rear surface (point O) and the center of the second region 87 is 10.1 mm, and the distance between the center of the lens on the rear surface (point O) and the center of the third region 88 is 14.4 mm.

[0220] The spectacle lens 80 shown in FIG. 20 is the same as the spectacle lens 70 shown in FIG. 15, except that the spectacle lens 80 includes a hexagonal central region. The micro-optical elements of this spectacle lens 80 are the same as those of the spectacle lens 70.

[0221] In FIG. 20, the spectacle lens 80 (particularly the first peripheral region of the spectacle lens) includes a first region 86, a second region 87, and a third region 88. In this example, each of the first region 86, the second region 87, and the third region 88 has a micro-optical element that covers at least 30% of the respective region. Each region has a center that is different from the centers of the other regions. It can be seen that each region further includes an annular portion (referred to as the first annular portion L86 for the first region 86, the second annular portion L87 for the second region 87, and the third annular portion L88 for the third region 88).

[0222] As described with respect to other examples, each annular portion associated with a particular region is centered on an axis that passes through the center of this region and intersects the ERC. Each annular portion is defined by a point of the particular region that intersects the ERC. All points of a particular annular portion are equidistant from the center of the particular region. In practice, the said distance can be represented by an angular distance defined between the center of the particular region and a point of the annular portion. Here, this angular distance corresponds to half of the diameter of the particular annular portion.

[0223] The distance between the rear surface of the lens 80 and the ERC is the same as that used previously (for the second example).

[0224] FIG. 21 shows a graphical representation showing the following: - In horizontal coordinates, the angular distances related to the annular portion are shown, with each angular distance corresponding to the angle between the center of a particular region (including a particular annular portion) and a point on that particular annular portion, as defined with respect to the ERC. - The values ​​in the y-coordinate represent the logarithmic base of the point spread function. In this example, each value in the y-coordinate corresponds to the logarithm of the integral of the value of the point spread function along a specific ring section with an angular distance given in the x-coordinate.

[0225] Figure 21 shows the following: - The first curve 7001 corresponds to the change in the value of the integral (i.e., mean) of the point spread function identified along the ring portion contained in the first region 86. - The second curve 7002 corresponds to the change in the value of the integral of the point spread function identified along the ring portion contained in the second region 87. - A third curve 7003 corresponding to the change in the value of the integral of the point spread function identified along the ring portion contained in the third region 88.

[0226] For angular distances in the range of 0° to 0.2°, the difference between the logarithm of the integral of the value of the point spread function along the first annular part of the first region (defined for one of the angular distances in the range of 0° to 0.2°) and the logarithm of the integral of the value of the point spread function along the second annular part of the second region (defined for one of the angular distances in the range of 0° to 0.2°) is found to be less than 15% (here less than 10%, e.g., 1% to 10%, 15%), and the logarithm of the integral of the value of the point spread function defined along the first region and the logarithm of the integral of the value of the point spread function defined along the second region are specified for the same angular distance (i.e., this means that the first annular part and the second annular part have the same dimensions and / or are defined for the same angular distance).

[0227] In other words, this means that the difference between the value of the first curve 7001, defined for the angular distance range of 0° to 0.2°, and the value of the second curve 7002, defined for the angular distance range of 0° to 0.2°, is less than 15%.

[0228] For angular distances in the range of 0° to 0.2°, the difference between the logarithm of the integral of the value of the point spread function along the first annular part of the first region (defined for one of the angular distances in the range of 0° to 0.2°) and the logarithm of the integral of the value of the point spread function along the third annular part of the third region (defined for one of the angular distances in the range of 0° to 0.2°) is less than 15% (here less than 10%, e.g., 1% to 10%, 15%), and the logarithm of the integral of the value of the point spread function defined along the first annular part and the logarithm of the integral of the value of the point spread function defined along the third annular part are specified for the same angular distance (i.e., this means that the first annular part and the third annular part have the same dimensions and / or are defined for the same angular distance).

[0229] Similarly, the difference between the value of the first curve 7001, defined for the angular distance range from 0° to 0.2°, and the value of the third curve 7003, defined for the angular distance range from 0° to 0.2°, is less than 15%.

[0230] The same applies to the 0.2° to 0.35° range. In the 0.36° to 0.45° and 0.55° to 0.88° ranges, the difference between the value of the first curve and the value of the second curve 7002 or the third curve 7003 is less than 15%.

[0231] Sixth example In the sixth example, the spectacle lens comprises only diffusive micro-optical elements. Each diffusive micro-optical element is adapted to scatter light. For example, collimated light is scattered in a conical shape with an apex angle in the range of ±1° to ±40°. In one example, the diffusive micro-optical elements are adapted to scatter light locally, i.e., at the intersection of a particular micro-optical element and the wavefront reaching that particular micro-optical element. Micro-optical elements having diffusive optical properties may be similar to the micro-optical elements described in U.S. Patent No. 1,0302,962.

[0232] Figure 22 shows a magnified view of a portion of an eyeglass lens according to the sixth example. In Figure 22, the first region 91, the second region 93, and the third region 97 are shown.

[0233] Typically, in this example, the distance between the center of the lens on the rear surface (point O) and the center of the first region 91 is 7.5 mm, the distance between the center of the lens on the rear surface (point O) and the center of the second region 93 is 10.1 mm, and the distance between the center of the lens on the rear surface (point O) and the center of the third region 97 is 14.4 mm.

[0234] As shown in Figure 22, each region further includes annular sections (referred to as the first annular section L91 for the first region 91, the second annular section L93 for the second region 93, and the third annular section L97 for the third region 97).

[0235] Figure 23 shows a graphical representation of the following: - In horizontal coordinates, the angular distances related to the annular portion are shown, where each angular distance corresponds to the angle between the center of a particular region (including a particular annular portion) and a point on that particular annular portion, as defined with respect to the ERC (i.e., the angle corresponds to half the dimension of the particular annular portion). - The value of the logarithmic base of the point spread function in the y-coordinate. In this example, each value in the y-coordinate corresponds to the logarithm of the integral of the value of the point spread function along a specific ring section having an angular distance given in the x-coordinate.

[0236] Figure 23 shows the following: - The first curve 8001 corresponds to the change in the value of the integral (i.e., mean) of the point spread function identified along the ring portion contained in the first region 91, - The second curve 8002 corresponds to the change in the value of the integral of the point spread function identified along the ring portion contained in the second region 93. - A third curve 8003 corresponding to the change in the value of the integral of the point spread function specified along the ring portion contained in the third region 97.

[0237] For angular distances within the range of 0° (preferably 0.01°) to 0.2°, the difference between the logarithm of the integral of the value of the point spread function along the first annular part of the first region (defined for one of the angular distances within 0° (preferably 0.01°) to 0.2°) and the logarithm of the integral of the value of the point spread function along the second annular part of the second region (defined for one of the angular distances within 0° to 0.2°) is found to be less than 15% (here less than 10%, e.g., 0.1% to 10%, 15%), and the logarithm of the integral of the value of the point spread function defined along the first region and the logarithm of the integral of the value of the point spread function defined along the second region are specified for the same angular distance (i.e., this means that the first annular part and the second annular part have the same dimensions and / or are defined for the same angular distance).

[0238] In other words, this means that the difference between the value of the first curve 8001, defined for the angular distance range of 0° to 0.2°, and the value of the second curve 8002, defined for the angular distance range of 0° to 0.2°, is less than 15%.

[0239] For angular distances within the range of 0° (preferably 0.01°) to 0.2°, the difference between the logarithm of the integral of the value of the point spread function along the first annular portion of the first region (defined for one of the angular distances within the range of 0° (preferably 0.01°) to 0.2°) and the logarithm of the integral of the value of the point spread function along the third annular portion of the third region (defined for one of the angular distances within the range of 0° to 0.2°) is less than 15% (here less than 10%, e.g., 0.1% to 10%, 15%), and the logarithm of the integral of the value of the point spread function defined along the first annular portion and the logarithm of the integral of the value of the point spread function defined along the third annular portion are specified for the same angular distance (i.e., the first and third annular portions have the same dimensions and / or are defined by the same angular distance).

[0240] Similarly, the difference between the value of the first curve 8001, defined in the range of angular distances from 0° (preferably 0.01°) to 0.2°, and the value of the third curve 8003, defined in the range of angular distances from 0° (preferably 0.01°) to 0.2°, is less than 15%.

[0241] The same applies to the range of angular distances included in 0.2° to 0.8°.

[0242] How to identify eyeglass lenses Figure 24 shows a computer implementation method 100 for identifying spectacle lenses 10, 30, 40, 70, 80, and 90 already disclosed in the first, second, third, fourth, fifth, or sixth example. This means that method 100 is implemented by a computer. The computer may be a processor, a computing module, or a computer or computing unit. In other words, this means that the computer may be a processor or central processing unit (CPU), or any electronic device that enables the execution of a set of commands and / or calculations. Typically, the computer includes a processor, memory, and various input and output interfaces.

[0243] Eyeglass lenses 10, 30, 40, 70, 80, and 90 are intended to be worn by the wearer.

[0244] A pair of spectacle lenses 10, 30, 40, 70, 80, and 90 are intended to be incorporated into the frames of eyeglasses or eyewear.

[0245] The computer implementation method is, - Step E1 defines the first regions 21, 31, 51, 81, 86, 91, which include a plurality of micro-optical elements 13, 43, 73 arranged to cover at least 30 percent of the total area of ​​the first regions 21, 31, 51, 81, 86, 91, - Step E2 defines the second region 23, 33, 53, 83, 87, 93, which includes a plurality of micro-optical elements 13, 43, 73 arranged to cover at least 30 percent of the total area of ​​the second region 23, 33, 53, 83, 87, 93, The first region 21, 31, 51, 81, 86, 91 and the second region 23, 33, 53, 83, 87, 93 are different, - Step E3 to identify the point spread function of the first region and the point spread function of the second region, wherein the center of each region is defined as the point of the maximum value of the point spread function of a particular region, - Step E4, in each region, defines a first annular portion centered at the first center of the first region and defined by a point in the first region at a first angular distance from the center of the first region, and a second annular portion centered at the second center of the second region and defined by a point in the second region at a second angular distance from the center of the second region. - Step E5, which specifies the shape, size, and position of the micro-optical elements 13, 43, 73 in the first region 21, 31, 51, 81, 86, 91 and the second region 23, 33, 53, 83, 87, 93 such that the difference between the logarithm of the integral of the value of the point spread function along the first annular part of the first region and the logarithm of the integral of the value of the point spread function along the second annular part of the second region is less than 15%, wherein the angular distances of the first and second regions are equal. Includes.

[0246] If the difference between the logarithm of the integral of the value of the point spread function along the first ring portion of the first region and the logarithm of the integral of the value of the point spread function along the second ring portion of the second region is less than 15 percent (preferably less than 10 percent), then the characteristics of a particular region and / or the optical characteristics of the micro-optical elements of the first and second regions are confirmed to be effective for use as micro-optical elements of the first and second regions of the manufactured spectacle lenses 10, 30, 40, 70, 80, and 90.

[0247] Steps E4 and E5 can be repeated to perform the step of identifying annular portions having angular distances in the range of 0.01° to 0.20°.

[0248] Typically, steps E4 and E5 are repeated at least twice to confirm the validity of the region features. In other words, this means that at least two annular sections are identified for each region, so that step E5 is performed twice to identify them.

[0249] In practice, the computer implementation method 100 is performed sequentially by changing the optical features and / or features (position, size, inorganic properties) of the micro-optical elements 13, 43, 73 in the first regions 21, 31, 51, 81, 86, 91 and the second regions 23, 33, 53, 83, 87, 93, and by comparing the logarithm of the integral of the value of the point spread function along some first annular parts of the first region with the logarithm of the integral of the value of the point spread function along some second annular parts of the second region, wherein each value compared between the first and second regions is specified by the same angular distance.

[0250] Once it is confirmed that the micro-optical elements in the first and second regions are effective, the computer implementation process 100 is configured to spatially scan the optical designs of the spectacle lenses 10, 30, 40, 70, 80, and 90 by adding a third region positioned around the first region and a fourth region positioned around the second region. Typically, the third region has a contour of a different size and / or shape than the contour of the first region, and the fourth region has a contour of a different size and / or shape than the contour of the second region.

[0251] The defining step E4 and the identifying step E5 are performed for each region and can be repeated.

[0252] Again, the other two regions, namely the fifth and sixth regions, are defined.

[0253] Typically, the fifth region has a contour that is different in size and / or shape from the contour of the first region and the contour of the third region, and similarly, the sixth region has a contour that is different from the contour of the second region and the contour of the fourth region.

[0254] The optical features of these regions are specified as in the first and second regions, and as in the third and fourth regions.

[0255] Therefore, the region is defined to spatially scan the entire area of ​​the spectacle lenses 10, 30, 40, 70, 80, and 90 (typically the entire area of ​​the first peripheral region 15, 45, and 75) to identify the optical design of the micro-optical elements 13, 43, and 73 covering the surface of the spectacle lenses 10, 30, 40, 70, 80, and 90.

[0256] Figure 25 shows a method 200 for manufacturing eyeglass lenses 10, 30, 40, 70, 80, and 90 (i.e., physical lens elements).

[0257] Method 200 comprises all the steps of Method 100 already disclosed. Typically, Method 200 for manufacturing eyeglass lenses 10, 30, 40, 70, 80, and 90 is: - Step E11 of identifying the design of the lens element using a computer implementation method using the already disclosed method 100, - Step E12 involves manufacturing lens elements according to the design, Includes. [Explanation of Symbols]

[0258] 10 eyeglass lenses 11 Convex front surface 12 Concave posterior surface 13 Micro-optical elements 14 Central area 15. First peripheral region 16. Second Peripheral Region 20 eyeglass frames 21 First Domain 22 Outer contour 23. The Second Domain 24 Outer contour 30 eyeglass lenses 31. The First Domain 32 Outer contour 33. The Second Domain 37 The Third Domain 39 Outer contour 40 eyeglass lenses 43 Micro-optical elements 44 Central area 45. First peripheral area 46. ​​Second Peripheral Area 47 Outer circular contour 48 Outer circular contour 49 Outer edge 51 The First Domain 52 Outer contour 53 The Second Domain 54 Outer contour 70 eyeglass lenses 73 Micro-optical elements 75 First peripheral area 80 Eyeglass Lenses 81. The First Domain 82 Outer contour 83. The Second Domain 84 Outer contour 86. First Domain 87. The Second Domain 88 The Third Domain 90 eyeglass lenses 91 First Domain 93 Second Domain 97 The Third Domain

Claims

1. - A first region comprising a plurality of micro-optical elements arranged to cover at least 30 percent of the total area of ​​the first region, - A second region comprising a plurality of micro-optical elements arranged to cover at least 30 percent of the total area of ​​the second region, Eyeglass lenses comprising at least the following: Unlike the second region, the first region is The first region includes at least one first annular portion defined by a point in the first region located at a first angular distance from the first center of the first region, the second region includes at least one second annular portion defined by a point in the second region located at a second angular distance from the second center of the second region, the first center of the first region is defined as the point of the maximum value of the point spread function of the spectacle lens across the first region, the second center of the second region is defined as the point of the maximum value of the point spread function of the spectacle lens across the second region, the difference between the logarithm of the integral of the value of the point spread function along the first annular portion of the first region and the logarithm of the integral of the value of the point spread function along the second annular portion of the second region is less than 15%, and the first angular distance and the second angular distance are equal. Eyeglass lenses.

2. The spectacle lens according to claim 1, wherein the first and second angular distances are in the range of 0.01° to 0.20°, and the second angular distance is defined with respect to the point of occirotation.

3. The spectacle lens according to claim 1, wherein the first center and the second center are different from each other.

4. The micro-optical elements in the first region and the micro-optical elements in the second region are also - The point spread function of the first region has at least one local maximum located at an angular distance between 0.0107° and 0.0895° from the first center, and / or - The point spread function of the second region has at least one local maximum located at an angular distance between 0.0107° and 0.0895° from the second center, The spectacle lens according to claim 1, arranged in such manner.

5. The spectacle lens according to claim 1, wherein the micro-optical elements of the first region and the micro-optical elements of the second region are arranged such that the difference between the full width at half maximum of the point spread function of the first region, defined along the cross-section of the first region by a first cross-section plane passing through the first center of the first region and parallel to the optical axis of the spectacle lens, and the full width at half maximum of the point spread function of the second region, defined along the cross-section of the second region by a second cross-section plane passing through the second center of the second region and parallel to the optical axis of the spectacle lens, is less than 40%.

6. The spectacle lens according to claim 5, wherein the difference between the full width at half maximum of the point spread function of the first region along the cross-section of the first region as determined by the first cross-section and the full width at half maximum of the point spread function of the second region along the cross-section of the second region as determined by the second cross-section is greater than 10%.

7. The total width of the point spread function of the first region along the cross-section of the first region as determined by the first cross-section, at 20 percent of the maximum value of the point spread function of the first region along the cross-section of the first region as determined by the first cross-section, has the following characteristics, namely: - A value such that the difference between the total width at 20 percent of the maximum value of the point spread function of the second region along the cross-section of the second region by the second cross-section is less than 40%, - A value in which the difference between the total width at 20 percent of the maximum value of the point spread function of the second region along the cross-section of the second region by the second cross-section and the second cross-section is greater than 5%, An eyeglass lens according to claim 5, having at least one of the following.

8. The micro-optical elements in the first region and the micro-optical elements in the second region have the following characteristics: The full width at half maximum of the point spread function of the first region, defined along another cross-section of the first region by a third cross-section parallel to the optical axis of the spectacle lens, passing through the first center of the first region, has the following characteristics: - A value such that the difference between the point spread function of the second region and the full width at half maximum of the second region, defined along another cross-section of the second region by a fourth cross-section of the second region passing through the second center of the second region and parallel to the optical axis of the spectacle lens, is less than 40%. - A value such that the difference between the point spread function of the second region defined along another cross-section of the second region by a fourth cross-section of the second region and the full width at half maximum is greater than 10%, The spectacle lens according to claim 5, arranged to have at least one of the following.

9. The spectacle lens according to claim 8, wherein the point spread function of at least one of the first and second regions has one principal peak and at least two secondary peaks on either side of the principal peak.

10. The spectacle lens according to claim 1, wherein the orthogonal projection of the first region onto a projection plane perpendicular to the optical axis of the spectacle lens and the orthogonal projection of the second region onto the projection plane have different shapes or sizes.

11. The spectacle lens according to claim 10, wherein the geometric center of the orthogonal projection of the first region is at least 0.5 millimeters away from the geometric center of the orthogonal projection of the second region.

12. - The difference between the density of the micro-optical elements in the first region and the density of the micro-optical elements in the second region is less than 5%, and / or - The average refractive power of at least one of the micro-optical elements in the first region is different from the average refractive power of at least one of the micro-optical elements in the second region, and / or - At least one optical function of the micro-optical elements in the first region is different from the at least one optical function of the micro-optical elements in the second region, and / or - The difference between the diameter of at least one of the micro-optical elements in the first region and the diameter of at least one of the micro-optical elements in the second region is less than 5%. The spectacle lens according to claim 1.

13. At least one of the micro-optical elements in the first region and / or the second region has the following characteristics, namely: - Average refractive power values ​​included in 1 diopter to 10 diopters, - Refractive optical function, diffractive optical function, or diffuse optical function, An eyeglass lens according to claim 1, comprising at least one of the following.

14. The micro-optical elements in the first region are arranged according to a first pattern including at least two first concentric rings of the micro-optical elements, the first of the at least two first concentric rings of the micro-optical elements being spaced at least 1 millimeter apart from the second of the at least two first concentric rings of the micro-optical elements, and / or The micro-optical elements in the second region are arranged according to a second pattern including at least two second concentric rings of the micro-optical elements, wherein the first of the at least two second concentric rings of the micro-optical elements is spaced at least 1 millimeter apart from the second of the at least two second concentric rings of the micro-optical elements. The spectacle lens according to claim 1.

15. The spectacle lens according to claim 1, wherein at least one of the micro-optical elements in the first region is spaced at least 0.3 millimeters apart from another of the micro-optical elements in the first region or from another of the micro-optical elements in the second region.

16. A computer implementation method for identifying eyeglass lenses, - A step of defining a first region of the spectacle lens, which includes a plurality of micro-optical elements arranged to cover at least 30 percent of the total area of ​​the first region, - A step of defining a second region of the spectacle lens, which includes a plurality of micro-optical elements arranged to cover at least 30 percent of the total area of ​​the second region, wherein the second region is distinct from the first region and the second region. - A step of identifying the point spread function of the spectacle lens over the first region and the point spread function of the spectacle lens over the second region, wherein the center of each region is defined as the point of the maximum value of the point spread function for the particular region, - A step of defining a first annular portion centered at the first center of the first region and defined by a point in the first region located at a first angular distance from the center of the first region, and a second annular portion centered at the second center of the second region and defined by a point in the second region located at a second angular distance from the center of the second region, - A step of specifying the shape, size, and position of each micro-optical element within the first and second regions such that the difference between the logarithm of the integral of the point spread function along the first annular portion of the first region and the logarithm of the integral of the point spread function along the second annular portion of the second region is less than 15%, wherein the angular distances between the first and second regions are equal. A method that includes this.

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