Artificial eye lens with a reduced number of eye lens foci generated on the basis of chromatic aberration

Abstract

The invention relates to an artificial eye lens (1) with at least one optical part (2) which has a front side (3) and a rear side (4) opposite the front side (3), wherein the optical part (2) has at least one base lens body (10) which has a number n, with n greater than or equal to 2, of base lens body foci (BFN; BF1; BFF), wherein the artificial eye lens (1) has a transmission filter system (12) with at least one transmission filter (16, 17, 18) which is in optically operative connection with the base lens body (10), wherein at least one base lens body focus (BFN; BF1; BFF) has chromatic aberration and, depending on the chromatic aberrations thereof, a number m, with m greater than zero and less than n, of eye lens foci (AF1, AF2) of the artificial eye lens (1) is formed with the transmission filter system (12).

Description

[0001] One aspect of the invention relates to an artificial eye lens with at least one optical part. The optical part has a front side. This front side is to be understood locally in such a way that, when the artificial eye lens is arranged on or in the eye, it faces away from the retina, in particular the optic nerve of the eye. This front side therefore faces the person's surroundings. The optical part has a rear side opposite the front side. This rear side is to be understood locally in such a way that, when the artificial eye lens is arranged on or in the eye, it faces the retina, in particular the optic nerve of the eye. This rear side therefore faces away from the person's front surroundings or the front surroundings of the eye.

[0002] Artificial eye lenses, for example, are known as intraocular lenses. An intraocular lens has an optical part, to which at least one haptic element can be attached at the edge. This haptic element can be used to hold the intraocular lens in the eye, for example, in a capsular bag. The haptic element is a component of the intraocular lens and does not have any optical imaging properties, unlike the optical part.

[0003] An optical part of an artificial eye lens is typically constructed from a plastic material, such as a polymer material. Due to its shape, this optical part exhibits a specific optical imaging property. This optical imaging property can be refractive and / or diffractive. Typically, specific optical structures are formed or arranged in the optical part. This allows the light incident on the artificial eye lens from the environment to be specifically directed by the optical imaging property of the optical part.

[0004] Especially in multifocal artificial lenses, it is common for the foci to exhibit chromatic aberration. This longitudinal chromatic aberration, which forms along the main optical axis of the artificial lens, is usually undesirable because it leads to a blurred image. It is therefore known that such chromatic aberration should be corrected in artificial lenses. To this end, extensive and complex measures are sometimes taken to counteract this effect. In addition to this longitudinal chromatic aberration, other undesirable effects such as glare or halo can occur in multifocal artificial lenses. This is particularly the case when, in addition to this longitudinal chromatic aberration, superpositions with different images that are not in the foci occur.

[0005] Furthermore, it is also known that after cataract surgery, the filtering properties of the natural lens for blue light are lost. Therefore, it is known in the prior art that artificial lenses, such as intraocular lenses, are provided with specific dyes, for example a yellow dye, in order to come as close as possible to the natural lens and to enable the filtering of blue light through this artificial lens. However, this specific filtering of a wavelength, such as blue light, leads to disadvantages, especially at dusk or in low light conditions. This is particularly the case because there may be too few photons of this filtered-out wavelength. This can lead to disadvantages, for example, at dusk or at night, such as when driving a vehicle.

[0006] EP 1 866 693 B1 discloses a method for specifically reducing longitudinal chromatic aberration in an artificial eye lens. Thus, it is proposed to reduce this unavoidable chromatic aberration by means of the inventive measures in order to maintain the basic focal number and achieve better imaging properties in these original foci. The disadvantage, as already explained above, is that these changes maintain the existing foci, but they are then present with reduced light intensity at specific wavelengths.

[0007] According to the invention, EP 1 194 797 B1 mentions diffractive lenses that are formed without topographical and thus optical steps on the lens surface. In this context, a trifocal lens is also mentioned, in which the individual zones have different average refractive powers and, in addition, disadvantageous longitudinal chromatic aberrations occur in both the smallest and the largest of the three main refractive powers.

[0008] In the multifocal lenses in EP 1 194 797 B1 and the corresponding DE 600 16 219 T2, the n principal refractive powers are generated by at least n different optical annular zones. Disclosures in this prior art regarding the concept and effect of principal subzones and phase subzones are to be considered disclosed in the present application.

[0009] In the multifocal lenses there, the zones and their adjacent arrangement are also designed in such a way that a phase shift or phase shift of an incident light wave occurs. The zones have equal areas, and there are no topographical optical steps between adjacent zones, which means that the surface configuration is continuous. In particular, this also means that a wavefront behind the lens is continuous, meaning that no optical path length differences or optical steps occur between subregions of the wavefront behind the lens.

[0010] The phase subzones can counteract interference problems, as also explained in this prior art. Phase shifts between partial waves from different areas or zones of the lens, where the phase shifts are prerequisites for multifocality of the lens, are not caused by optical steps, as is usual with diffractive lenses, but rather by these phase subzones with specific refractive power. Such a design and corresponding structure of a lens with this subdivision of annular zones into a main subzone and a phase subzone therefore represent a fundamentally different approach.

[0011] Furthermore, DE 10 2010018 436 A1, which corresponds to WO 2011 / 134948 A1, discloses a further embodiment of a multifocal lens in which the principle of annular zones, each of which has a main subzone and a phase subzone, is also implemented. There, n main refractive powers are formed by a maximum of n-1 different zones, and the averaged refractive powers of the zones are equal.

[0012] Disclosures in this prior art regarding the concept and effect of main subzones and phase subzones are to be considered as disclosed in the present application.

[0013] It is an object of the present invention to provide an artificial eye lens which is improved in its imaging properties based on chromatic aberration.

[0014] This problem is solved by an artificial eye lens according to the independent claim.

[0015] One aspect of the invention relates to an artificial eye lens with at least one optical part. The optical part has a front side. This front side is to be understood locally in such a way that, when the artificial eye lens is arranged on or in the eye, it faces away from the retina, in particular the optic nerve of the eye. This front side therefore faces the person's surroundings. The optical part has a rear side opposite the front side. This rear side is to be understood locally in such a way that, when the artificial eye lens is arranged on or in the eye, it faces the retina, in particular the optic nerve of the eye. This rear side therefore faces away from the person's front surroundings or the front surroundings of the eye.

[0016] The optical part has at least one base lens body. This base lens body has a number n of base lens body foci. This number n is greater than or equal to 2. In addition, the artificial eye lens has a transmission filter system. This transmission filter system has at least one transmission filter that is in optically operative connection with the base lens body. At least one base lens body focus has chromatic aberration. Depending on the chromatic aberration, and thus intentionally utilizing the chromatic aberration, this at least one base lens body focus is formed with the transmission filter system as intended and thus defines a number m, in particular multichrome, eye lens foci of the artificial eye lens. The number m is greater than 0 and less than n.

[0017] This creates an artificial eye lens in which an existing chromatic aberration of a partial element, i.e. the base lens body, is cleverly utilized to reduce the focal number of the entire artificial eye lens compared to the focal number of the base lens body, which is filtered out in the remaining wavelength ranges by the transmission filter system. The artificial eye lens is therefore cleverly constructed in such a way that it forms a central element, namely the at least one base lens body, multifocally. Each of these base lens body foci is preferably multichromic. This means that in each of these base lens body foci, a spectrum of different wavelengths of the visible spectral range is present, in particular the visible spectral range with wavelengths between blue light and red light.

[0018] In the artificial eye lens, the intention is not to declare the existing chromatic aberration as an undesirable effect and to attempt to reduce or eliminate it in the base lens body foci. Rather, this effect of chromatic aberration in the base lens body foci is cleverly utilized for this purpose. Namely, to create other, and in this context, fewer, eye lens foci from these base lens body foci affected by chromatic aberration, which are also particularly multichromic. This means that the reduced number of eye lens foci also preferably has a wavelength spectrum that includes various different wavelengths of the visible spectral range, in particular the wavelength range from at least blue light to at least red light, in particular the entire visible spectral range.This creates eye lens foci that are not only multichromic in terms of the wavelength spectrum, but also exhibit a high photon count at virtually all wavelengths. This allows the creation of eye lens foci that are improved compared to artificial eye lenses, which are designed to eliminate chromatic aberration and thus exhibit insufficient intensity or a too low number of photons at at least some wavelengths, as described above.

[0019] This also ensures that the actual foci that characterize the entire artificial lens, namely these ocular lens foci, are essentially generated by this entire system consisting of at least one base lens body and the transmission filter system. These ocular lens foci thus shape the optical imaging properties of the artificial lens. Therefore, it is also specifically intended that the focal number of the artificial lens be defined by the number m.

[0020] In particular, one embodiment provides that a chromatic aberration, in particular a longitudinal chromatic aberration, in one eye lens focus is smaller than in at least one base lens body focus, in particular compared to all chromatic aberrations in the base lens body foci. This is a further advantageous embodiment, since the eye lens foci are thus particularly bright across the multichrome wavelength spectrum and, in addition, also exhibit a low chromatic aberration.

[0021] In one embodiment, at least one eye lens focus is multichrome. In particular, all eye lens foci are each multichrome. Preferably, at least one eye lens focus has light in the wavelength spectrum between blue light and red light. In particular, all eye lens foci are formed such that light from this wavelength spectrum between blue light and red light is present.

[0022] In one embodiment, the at least one eye lens focus is formed offset from the base lens body foci when viewed along the main optical axis of the artificial eye lens. Such an embodiment not only changes, in particular reduces, the number of eye lens foci compared to the number of base lens body foci, but also creates a shift along the main optical axis. This makes it possible to provide an artificial eye lens that is very individually configured with regard to the final focus number and its axial position, in particular completely different from the base lens body. This also makes it possible, in particular, to configure artificial eye lenses in a very diverse and individual manner with regard to the number m of eye lens foci and their axial position, depending on the base lens body and the transmission filter system.This also provides another advantage of this proposed concept of the artificial eye lens.

[0023] From a chromatic aberration occurring in a base lens body focus, a defined wavelength range is selected using the transmission filter system as intended, which then forms part of the multichromic wavelength spectrum in the eye lens focus. This is provided for multiple base lens body foci. Therefore, the eye lens focus, in its multichromic wavelength spectrum, is composed of selected wavelength subranges of the chromatic aberrations of the base lens body foci.

[0024] In one embodiment, the base lens body has at least one first lens zone, with which a first base lens body focus is formed or which at least contributes to creating the first base lens body focus. The base lens body has at least one different second lens zone, with which a second base lens body focus different from the first base lens body focus is formed or which at least contributes to creating the second base lens body focus. This makes it possible for different base lens body foci to be specifically formed by specific lens zones of the base lens body.This also means that light falling on the first lens zone, for example, is primarily or essentially primarily directed into one base lens body focus, while light falling on the other lens zone is primarily or essentially primarily directed into another base lens body focus. This also makes it possible to construct and configure the base lens body very individually, in order to provide a customized number n of base lens body foci and also to individually define the position of these base lens body foci along the main optical axis.This central component of the entire artificial eye lens, namely this at least one basic lens body, already creates a wide range of configuration options, so that a very individual design of the entire artificial eye lens is then possible using a transmission filter system in optical interaction with the basic lens body.

[0025] This highly specific modular system, with the base lens body and the transmission filter system, allows the aforementioned basic idea to be made highly variable and flexible, thus offering a wide variety of possibilities for creating an artificial eye lens, all of which can be provided with the aforementioned advantages. It is also possible for more than two different lens zones to form the base lens body. Lens zones can, for example, be ring zones. A central lens zone, to which the main optical axis is oriented perpendicularly, can be a circular solid surface. In three dimensions, it can be dome-shaped, in particular.

[0026] In particular, these lens zones can be formed on the front and / or back of the base lens body. In this regard, the lens zones can have the same radii. However, they can also have different radii. It is possible for the front side with the lens zones to be formed as a refractive structure. However, it is also possible for the lens zones to be arranged on the front side and form a diffractive structure.

[0027] It is also possible, for example, for a refractive structure composed of lens zones to be formed on the front side and a refractive structure composed of lens zones to be formed on the back side. It is also possible for a diffractive structure composed of lens zones to be formed on the front side and a diffractive structure composed of lens zones to be formed on the back side. It is also possible for a diffractive or refractive structure to be formed on the front or back side, and for a different type of optical structure to be formed on the other side of the base lens body than on the front side.

[0028] The front side can generally be concavely curved. In one embodiment, the back side can generally be concavely curved. In particular, it is provided that the front side and / or the back side are convexly curved.

[0029] It is possible that the base lens body, and especially the artificial lens, has a refractive-diffractive structure on the front side and / or a refractive-diffractive structure on the back side. However, it is also possible that a refractive-diffractive structure is formed on only one of the two sides, i.e., the front side or the back side.

[0030] In one embodiment, at least one lens zone has a plurality of ring zones. In particular, this is the case for both, and in particular all, lens zones formed. In one embodiment, these ring zones of the lens zones are arranged alternately with one another in the radial direction to a main optical axis of the artificial eye lens. The alternating arrangement forms a zone system with which a third base lens body focus is formed that is different from the two base lens body foci. In one embodiment, this makes it possible for at least a third base lens body focus to be formed by two different lens zones that are specifically arranged relative to one another in the radial direction, so that the base lens body is at least trifocal. In one embodiment, it is possible for the plurality of ring zones that form a lens zone to represent a bifocal lens.In one embodiment, it is possible for the multiple ring zones that form the other lens zone to also form a bifocal lens. Thus, in one embodiment, two bifocal lens zones, each having multiple ring zones arranged alternately with one another in the radial direction, interact to form a zone system that is trifocal.

[0031] In one embodiment, a phase zone is formed between each two annular zones. This phase zone, which can also be referred to as a phase sub-zone or secondary sub-zone, enables targeted phase shifts between partial waves from different areas or lens zones, in particular annular zones, of the artificial eye lens. These phase zones or phase sub-zones each have specific refractive powers. A phase zone, in operative connection with an annular zone, which in one embodiment can be referred to as the main sub-zone, represents an overall annular zone. This particularly advantageously enables the concept explained above to create a trifocal lens, in this case a trifocal base lens body, from two lens zones arranged alternately to one another, each of which is bifocal.

[0032] In this respect, a phase subzone is smaller in area than a ring zone and is therefore a main subzone of an overall ring zone.

[0033] Preferably, an annular zone and an adjoining phase subzone are arranged such that an angle between the two zones is greater than 90 degrees. This also applies in particular to tangents that are applied to a curved surface of an annular zone and a curved surface of a phase zone. In particular, it is therefore provided that, viewed in the radial direction relative to the main optical axis, an annular zone and an adjoining phase subzone are arranged without overlap and thus do not overlap with one another.

[0034] In one embodiment, the transmission filter system comprises a first transmission filter. This is arranged locally on one of the lens zones. In particular, this first transmission filter is arranged only on one of the lens zones. This first transmission filter is permeable to a first wavelength range of the visible spectral range. This first wavelength range is smaller than the total wavelength range of the visible spectral range. By means of such a transmission filter system with such a specifically designed and only locally arranged transmission filter, light incident on this specific lens zone can thus be specifically filtered and, on the other hand, specifically transmitted.This makes it possible to transmit a very specific wavelength sub-range of the incident total wavelength range of the visible spectral range in a very individual and defined manner, and thus to very specifically select a wavelength range that should contribute to an eye lens focus. This embodiment thus allows a very individual wavelength selection to be achieved through the specific type of this transmission filter and its specific position on the base lens body for a very specific base lens body focus, which is essentially created by this lens zone. This first transmission filter can therefore be used to very specifically decide which first wavelength range from this one base lens body focus should contribute to the eye lens focus to be created.

[0035] In one embodiment, the transmission filter system comprises a second transmission filter. This is arranged locally on a different lens zone. In particular, this second transmission filter is arranged locally only on this other lens zone. It is therefore arranged locally differently from the first transmission filter on the base lens body. In particular, the second transmission filter is permeable to a second wavelength range of the visible spectral range that is smaller than the total wavelength range of the visible spectral range. The advantages mentioned for the above-mentioned embodiment with the first transmission filter apply accordingly to the second transmission filter.This allows for individual wavelength selection to be performed in this other lens zone, which interacts with the second transmission filter, at a different base lens body focus created by this other lens zone. This also allows for an individual decision as to which wavelength subrange of this additional base lens body focus should contribute to the eye lens focus.

[0036] This makes it possible in a particularly advantageous manner that different filtering transmission filters, which are formed at different local positions of the base lens body and optically interact with the respective lens zones of the base lens body, select specific different wavelengths from the different base lens body foci, which then jointly contribute to a separate eye lens focus or to the individual formation of such a multichromic common eye lens focus.

[0037] In particular, it is thus preferably provided that, with the first transmission filter, the first transmitted wavelength range contributes to the formation of a common multichromic eye lens focus due to the chromatic aberration of the base lens body focus formed by this lens zone. Accordingly, it is then preferably provided that, with the second transmission filter, this different second wavelength range contributes to the formation of the common multichromic eye lens focus due to the chromatic aberration of the other base lens body focus formed by this other lens zone.

[0038] In one embodiment, it can be provided that the two wavelength sub-ranges that are transmitted through the different transmission filters, in particular on the main optical axis, overlap only partially at most. It is also possible for these two wavelength sub-ranges, in particular on the main optical axis, not to overlap. If they do not overlap, they can be directly adjacent to one another when viewed in the direction of the main optical axis. Alternatively, if they do not overlap, they can also be slightly spaced from one another. If the base body is trifocal in itself, the three wavelength ranges that are directed into the respective base lens body foci or form them can each overlap at least only partially in pairs.It can also be provided that only two such wavelength sub-ranges overlap, but the third wavelength sub-range does not overlap with one or both of the other wavelength sub-ranges.

[0039] It is also possible for the transmission filter system, in one embodiment, to have a third transmission filter, which is arranged, in particular, only locally on a third lens zone and is permeable to a third wavelength sub-range of the visible spectral range that is smaller than the total wavelength range of the visible spectral range. In particular, this third wavelength sub-range overlaps only partially with the first wavelength sub-range and / or only partially with the second wavelength sub-range.

[0040] Such a transmission filter system with a plurality of different transmission filters allows a high degree of variability and flexibility to be achieved for a configuration option of an artificial eye lens with regard to the number m of eye lens foci and / or their position along the main optical axis, in a base lens body that has at least two different lens zones, in particular at least three different lens zones. In one embodiment, the first wavelength range or the first wavelength subrange transmitted by the first transmission filter has a different interval width than the interval width of the second wavelength range or the second wavelength subrange. It is possible for a wavelength subrange to comprise only one wavelength, in particular blue light.The other wavelength sub-range can be configured differently, for example, not include any blue light. Thus, not only is the spectrum width across which the wavelength ranges extend different, but the actual wavelengths included therein can also be different, in particular, non-overlapping.

[0041] However, it is also possible for the wavelength subranges to have the same interval width. Even then, they can be formed without overlap.

[0042] In principle, the transmission filter system generally creates an optical system which, in interaction with the one base lens body, enables the creation of individual eye lens foci. These foci can be virtually regenerated, and the base lens body foci are masked out when the entire artificial eye lens is viewed. This means that, in one embodiment, no eye lens focus is formed by a base lens body focus alone, but rather that wavelength subranges from a base lens body focus made possible by the chromatic aberration contribute to an eye lens focus. The remaining wavelength subrange of a multichromic base lens body focus with chromatic aberration of the base lens body is filtered out by the transmission filter system.This means that this remaining wavelength sub-range of a base lens body focus, which is filtered out by the specific transmission filter system, is no longer present or is only present with such a small intensity that it no longer provides a usable focus in the optical sense. In particular, this remaining wavelength sub-range of a base lens body focus, which is filtered out by the transmission filter system, is smaller than an intensity threshold value, which is predetermined such that any remaining residual intensity in this base lens body focus is so small that this base lens body focus is no longer available as a usable focus for optical imaging or is no longer recognized as such.

[0043] Thus, in one embodiment, an eye lens focus is formed from several base lens body foci reduced in the wavelength ranges. This means that the base lens body foci are not completely filtered out and are no longer present at all, but are maintained with a reduced wavelength range, and the base lens body foci reduced in the wavelength ranges are combined or "fused" to form a new eye lens focus that is expanded in the wavelength range compared to these reduced base lens body foci.

[0044] In one embodiment, the transmission filter system filters out the wavelength range or wavelength subrange of the respective base lens body foci exhibiting chromatic aberration that does not contribute or is not intended to contribute to an eye lens focus. Thus, these remaining wavelength ranges, which the base lens body foci exhibit and are co-created by the wavelength ranges exhibiting chromatic aberration, are masked out by the filtering.

[0045] In one embodiment, the transmission filter system is in optically operative connection with the base lens body, in particular coordinated therewith, such that the chromatic aberration of an eye lens focus is smaller than a chromatic aberration of at least one base lens body focus, in particular of all base lens body foci.

[0046] In one embodiment, the transmission filter system is arranged, in particular directly, on the base lens body. In particular, the transmission filter system is arranged non-detachably on the base lens body. Therefore, it cannot be removed from the base lens body without causing damage, and in particular, it cannot be reversibly removed and reattached. The transmission filter system is preferably arranged on a front side and / or a rear side of the base lens body.

[0047] The base lens body is, in particular, void-free. It can be convex, concave, or flat on its front side. It can be convex, concave, or flat on its back side. For example, a biconvex shape of the base lens body is possible. The base lens body is, in particular, formed as a single piece.

[0048] In one embodiment, the transmission filter system is also additionally configured to correct a chromatic aberration of the eye, in particular a cornea of ​​the eye into which the artificial lens is intended for implantation. In one embodiment, the transmission filter system is also additionally configured to correct a chromatic aberration of the artificial lens itself.

[0049] The artificial eye lens is, in particular, an intraocular lens. It is specifically designed and intended for implantation into a capsular bag in the eye. It can therefore be a capsular bag-fixed basic intraocular lens. However, it can also be a phakic intraocular lens or a so-called additional intraocular lens. An additional intraocular lens is intended to be implanted into the sulcus in addition to the capsular bag-fixed basic intraocular lens. The artificial eye lens can also be an artificial lens system, in particular an IOL system, which comprises the basic intraocular lens and a phakic intraocular lens or an additional intraocular lens.

[0050] One aspect of the invention relates to an artificial eye lens with at least one optical part. The optical part has a front side. This front side is to be understood locally in such a way that, when the artificial eye lens is arranged on or in the eye, it faces away from the retina, in particular the optic nerve of the eye. This front side therefore faces the person's surroundings. The optical part has a rear side opposite the front side. This rear side is to be understood locally in such a way that, when the artificial eye lens is arranged on or in the eye, it faces the retina, in particular the optic nerve of the eye. This rear side therefore faces away from the person's front surroundings or the front surroundings of the eye.

[0051] The optical part has at least one base lens body. This base lens body has a number n, where n is greater than or equal to 2, of base lens body foci. In addition to the base lens body, the artificial eye lens has a focus number changing system and / or a focus number shifting system, in particular with respect to the base lens body foci. With this focus number changing and / or focus number shifting system, a number m of eye lens foci of the artificial eye lens is formed depending on the chromatic aberration, in particular by utilizing this chromatic aberration, of the base lens body foci and depending on the number n. The number m is in particular smaller than the number n and / or one, in particular multichrome, eye lens focus is offset from the base lens body foci along the optical principal axis of the artificial eye lens.The base lens body foci are hidden when the entire artificial eye lens with its optical properties is viewed as a whole.

[0052] This artificial eye lens achieves the corresponding advantages outlined above for the first independent aspect of an artificial eye lens. It is possible for the focus number changing system and / or the focus number shifting system to comprise at least one transmission filter system. This, in optical interaction with the base lens body, can achieve the corresponding reduction in the number of foci compared to the base lens body foci and / or achieve the axial shift along the main optical axis.

[0053] Embodiments of the first independent aspect relating to the artificial eye lens are to be regarded as advantageous embodiments of this second independent aspect relating to the artificial eye lens. However, the focus number changing system and / or the focus number shifting system can also comprise other optical elements that enable this focus number reduction and / or this axial focus shift.

[0054] In one embodiment, it is possible for the number n to be two, so that the number m is one. Thus, a monofocal artificial eye lens is formed from a bifocal base lens body. It is also possible for the number n to be three and the number m to be two or one.

[0055] In particular, the base lens body is formed such that the chromatic aberration, viewed along the principal optical axis of the artificial eye lens, overlaps in the base lens body foci. This means that this axial wavelength splitting in the base lens body foci axially overlaps, in particular only partially. This means that a sub-range of the wavelength spectrum split by the chromatic aberration at one base lens body focus axially overlaps in some areas with a sub-range of the wavelength spectrum split by the chromatic aberration at another base lens body focus.

[0056] In the artificial eye lens, the respective chromatic aberration is utilized across the base lens body foci, and through appropriate selection, a concentration is then combined into a new eye lens focus. Thus, a wavelength component is selected from selected wavelength ranges in the base lens body foci based on the respective chromatic aberration there, which then contributes to the multichromic composition or formation of a new eye lens focus.

[0057] A further aspect of the invention relates to a method for producing an artificial eye lens, in particular comprising the following steps: - Configuring at least one base lens body with a number n, where n is greater than or equal to 2, of base lens body foci, in particular base lens body foci having longitudinal chromatic aberration; - Creating a transmission filter system that is arranged in optical interaction with the base lens body, in particular such that a number m, in particular multichrome, eye lens foci of the artificial eye lens are formed with the transmission filter system in a defined manner. The number m is greater than 0 and less than n.

[0058] Embodiments of the artificial eye lens according to the above-mentioned aspect are considered advantageous embodiments of the method. In particular, features of the artificial eye lens are obtained, in particular generated, through simulation and generated during production by forming the eye lens.

[0059] A further aspect of the invention relates to an artificial eye lens obtainable by a method according to the above-mentioned aspect or an advantageous embodiment thereof.

[0060] Further features of the invention emerge from the claims, the figures and the description of the figures. The features and combinations of features mentioned above in the description, as well as the features and combinations of features mentioned below in the description of the figures and / or shown alone in the figures can be used not only in the respectively specified combination, but also in other combinations without departing from the scope of the invention. Thus, embodiments are to be regarded as encompassed and disclosed by the invention that are not explicitly shown and explained in the figures, but which emerge and can be produced by separate combinations of features from the explained embodiments. Embodiments and combinations of features are also to be regarded as disclosed that therefore do not have all the features of an originally formulated independent claim.Furthermore, embodiments and combinations of features are to be regarded as disclosed, in particular by the embodiments set out above, which go beyond or deviate from the combinations of features set out in the references to the claims.

[0061] The concrete values ​​of parameters and information on ratios of parameters or parameter values ​​for defining exemplary embodiments of the eye lens stated in the documents are to be regarded as being included within the scope of the invention, even in the case of deviations, for example due to measurement errors, system errors, DIN tolerances, etc., which also includes explanations that refer to essentially corresponding values ​​and information.

[0062] Embodiments of the invention are explained in more detail below with reference to schematic drawings. They show: Fig. 1 is a schematic plan view of an embodiment of an artificial eye lens according to the invention; Fig. 2 a schematic plan view of another embodiment of an artificial eye lens according to the invention; Fig. 3 a schematic plan view of another embodiment of an artificial eye lens according to the invention; Fig. 4 a schematic sectional view through an embodiment of an artificial eye lens according to the invention with a representation of optical imaging properties of this artificial eye lens; Fig. 5 a schematic representation of a partial region of an optical part of an embodiment of an artificial eye lens according to the invention; Fig. 6 a simplified representation of an embodiment of an artificial eye lens with a trifocal base lens body and a representation of two eye lens foci; and Fig. 7 a simplified representation according to Fig. 6, in which the artificial eye lens has a bifocal base lens body and the artificial eye lens has only one eye lens focus.

[0063] In the figures, identical or functionally identical elements are provided with the same reference symbols.

[0064] In Fig. 1 shows a schematic plan view of an embodiment of an artificial eye lens 1. The artificial eye lens 1 is an intraocular lens. It has an optical part 2. This optical part 2 forms the actual optical imaging element of the artificial eye lens 1. In this respect, it can be designed in a variety of ways and has a basic disk-like shape. This optical part 2 has a front side 3. The front side 3 can be convexly or concavely curved. The front side 3 is intended to be the side that, when the artificial eye lens 1 is implanted in the eye or, in the case of a design as a contact lens, rests against the front of the cornea of ​​the eye, faces the front area of ​​the person. This also means that the front side 3 is the side that, when the artificial eye lens 1 is arranged in the eye, faces away from the retina, in particular the optic nerve of the eye.The optical part 2 further has a rear side 4 opposite the front side 3. This rear side can be convex or concave. When the artificial lens 1 is arranged in the eye, the rear side 4 faces the retina, in particular the optic nerve of the eye. The optical part 2 has a main optical axis A, which is shown in . Fig. 1 is oriented perpendicular to the plane of the figure. The main optical axis A passes through the front 3 and the back 4 in the middle.

[0065] In the exemplary embodiment, this artificial eye lens 1 also has a haptic element 5. This element is formed by two separate brackets 6 and 7. These brackets 6 and 7 each terminate at one end on a peripheral wall 8 of the optical part 2.

[0066] The optical part 2 can contribute to the optical imaging properties over the entire geometry. In another embodiment, it can be provided that the optical part 2 has an outer ring 9, viewed in the radial direction to the main optical axis A. This can also be referred to as an outer end ring or peripheral ring. This peripheral ring, which in Fig. 1, which is symbolically delimited radially inward by the dashed line, has no optical imaging properties. It is integrated and thus formed in one piece with the remaining area of ​​the optical part 2. In particular, the optical part 2 is formed from a polymer material. The optical part 2 and the haptic 5 can be formed in one piece. It is also possible, however, for the brackets 6 and 7 to be separate components that are inserted or glued to the optical part 2.

[0067] In Fig. 3 shows an embodiment of an optical part 2 of an artificial eye lens 1. The artificial eye lens 1 can also have a haptic 5. However, it can also be designed without such a haptic 5. This can also be the case with the examples in Fig. 1 and Fig. 2 may be the case.

[0068] In Fig. Figure 3 is to be understood as an example and is shown as representative of many other configurations that the optical part 2 has at least one base lens body 10. Furthermore, in addition to this base lens body 10, the optical part 2 has a focus number changing system and / or a focus number shifting system 11. This is indicated here only symbolically with the corresponding reference numeral. The focus number changing system and / or the focus number shifting system 11 is designed to form a number m of eye lens foci of the artificial eye lens 1 depending on the chromatic aberration, in particular by utilizing the existing chromatic aberration, of base lens body foci and depending on a number n that describes the number of base lens body foci and n is greater than or equal to 2. The number m is less than the number n and greater than or equal to 1. The entire artificial eye lens 1 then has only the eye lens foci.The base lens body foci are then hidden.

[0069] The focus number changing and / or focus number shifting system 11 preferably comprises a transmission filter system 12. This is Fig. 3 is also only symbolically characterized by the reference symbol.

[0070] The base lens body 10 has the aforementioned number n of base lens body foci. This means that the base lens body 10 is at least bifocal.

[0071] In particular, the base lens body 10 has a first lens zone 13. In particular, this first lens zone 13 creates or forms at least one first base lens body focus. It is possible that this first lens zone 13 is formed from only one zone region shown or from several zone regions. For example, in Fig. 3 this first lens zone is a central lens zone through which the main optical axis A of the artificial eye lens 1 runs. In the Fig. In the plan view of the front side 3 of the optical part 2 shown in Figure 3, the main optical axis A is oriented perpendicular to the plane of the figure. This is also shown in Fig. 1 and Fig. 2 is the case.

[0072] In one embodiment, it is possible for this first base lens body focus to be, for example, a base lens body near focus BFN. In another embodiment, this central first lens zone 13 can form a base lens body far focus BFF as the first base lens body focus.

[0073] In one embodiment, the base lens body 10 can have a second lens zone 14 that is different from the first lens zone 13. This second lens zone 14 forms at least one second base lens body focus that is different from the first base lens body focus. If the base lens body 10 has only two base lens body foci, then, for example, the base lens body focus formed by the second lens zone 14 is a base lens body far focus BFF, while the base lens body focus formed by the first lens zone 13 is a base lens body near focus BFN. If the configuration of the two lens zones 13 and 14 is inverse, i.e., reversed, the respective base lens body foci generated thereby are also reversed.

[0074] In a further embodiment, the base lens body 10 can have a third lens zone 15. This is in turn different from the first lens zone 13 and different from the second lens zone 14. With this third lens zone 15, a third base lens body focus is preferably formed. Fig. 3, merely as an example and not to be understood as exhaustive, a base lens body distance focus BFF can be formed with the third lens zone 15. This is particularly provided when a base lens body near focus BFN is formed with the first lens zone 13 and a base lens body intermediate focus BFI is formed with the second lens zone 14.

[0075] On the other hand, if, for example, a base lens body far focus BFF is formed with the first lens zone 13 and a base lens body intermediate focus BFI is formed with the second lens zone 14, a base lens body near focus BFN is preferably formed with the third lens zone 15.

[0076] In the Fig. In the embodiments shown in Figure 3, the lens zones 13, 14, and 15 are each formed by only one surface area. The lens zones 14 and 15 are annular zones.

[0077] It is also possible for the lens zone 13 and / or the lens zone 14 and / or the lens zone 15 to each be formed from a plurality of separate surface regions. For example, at least two rings can form a lens zone. These rings can be formed in the radial direction relative to the main optical axis A, wherein, in particular, a ring zone of another lens zone can be arranged in between.

[0078] Not only in this context, it is possible for the front side 3 to be refractive and / or the back side 4 to be refractive. It is also possible for the front side 3 to be diffractive at least in some regions and / or the back side 4 to be diffractive at least in some regions, in another exemplary embodiment.

[0079] In particular, it is provided that the system 11, in particular the transmission filter system 12, has at least one transmission filter. In particular, this is arranged only locally on the front side 3 and / or the rear side 4, in particular only locally on an associated lens zone 13 and / or 14 and / or 15. Thus, an individual positioning is formed between a lens zone 13 and / or 14 and / or 15 and a transmission filter of the transmission filter system 12. This defines and intentionally creates an individual optical interaction between the transmission filter system 12 and the lens zones 13 and / or 14 and / or 15.

[0080] In Fig. Figure 3 shows a schematic sectional view of an embodiment of an artificial eye lens 1 with an embodiment of an optical part 2. The design of the optical part 2 is to be understood merely as an example and is not exhaustive. This specific illustration is intended to provide a general explanation of how the general basic idea is to be understood.

[0081] In this embodiment, the base lens body 10 has a convexly curved front side 3. In particular, it also has a convexly curved rear side 4.

[0082] In the example shown, a lens zone 13 is present. This is the centrally located first lens zone 1 of the lens zone system. In the exemplary embodiment, this first lens zone 13 is a near zone N. This means that it is designed to form at least one base lens body near focus BFN. Adjacent to it in the radial direction is a second lens zone 14. This is an annular zone. In the exemplary embodiment, this second lens zone 14 is an intermediate zone I. In the exemplary embodiment, the second lens zone 14 is intended to form at least one base lens body intermediate focus BFI. In addition, a third lens zone 13 is also formed. This is an annular zone. In the exemplary embodiment, this third lens zone 15 is a far zone F. In the exemplary embodiment, this third lens zone 15 is intended to form at least one base lens body far focus BFF.

[0083] In Fig. 4 also shows a principal plane H of the artificial eye lens 1, in particular of the base lens body 10. Furthermore, the light L incident on the artificial eye lens 1 is shown. In the simplified illustration, it can be seen that the base lens body 10 is trifocal in the exemplary embodiment, i.e., has the aforementioned base lens body foci BFN, BFI, and BFF.

[0084] As furthermore in Fig. 4, these base lens body foci BFN, BFI and BFF each exhibit longitudinal chromatic aberration. For the sake of clarity, the complete chromatic aberration is only shown for the third lens zone 15. For the sake of clarity, the chromatic aberration is symbolized here by the light rays of blue light b, green light g and red light r. As can be seen, this chromatic aberration in the base lens body foci BFN, BFI and BFF overlaps in some areas along the main optical axis A. This means that the respective different wavelength ranges of the base lens body foci BFN, BFI and BFF only overlap in some areas axially, but do overlap.

[0085] This explains a specific individual configuration of the base lens body 10 in this embodiment.

[0086] Based on this basic configuration of the base lens body 10, the artificial eye lens 1 has a system 11 already explained as a transmission filter system 12.

[0087] For this purpose, the exemplary embodiment provides for a first transmission filter 16 of the transmission filter system 12 to be arranged on the first lens zone 13. In particular, this first transmission filter 16 is formed or arranged locally only on the first lens zone 13. The first transmission filter 16 is transmissive for a first wavelength range or a wavelength sub-range of the visible spectral range. This first transmission filter 16 is opaque for the remaining wavelength sub-range of the visible spectral range. In the exemplary embodiment, it is provided for the first transmission filter 16 to be transmissive for a wavelength sub-range of red light and opaque for the remaining wavelength sub-range, in particular the wavelength sub-range containing green light and blue light.This means that only the red light is allowed to pass through this first transmission filter 16 in the area of ​​the first lens zone 13.

[0088] Furthermore, in the exemplary embodiment shown, a second transmission filter 17 of the transmission filter system 12, which is different from the first transmission filter, is formed or arranged on the second lens zone 14. In particular, this second transmission filter 17 is arranged only on this second lens zone 14. The second transmission filter 17 is transmissive to a second wavelength range or a wavelength sub-range of the visible spectral range and opaque to a remaining other wavelength sub-range of the visible spectral range. The second wavelength sub-range overlaps at most only partially with the first, transmitted wavelength sub-range of the first transmission filter 16. In the exemplary embodiment, it is provided that the second transmission filter 17 is transmissive to green light and in particular opaque to red light and blue light.

[0089] Furthermore, the exemplary embodiment provides for the transmission filter system 12 to have a third transmission filter 18. This third transmission filter 18, which differs from the other two transmission filters 16 and 17, is in particular formed or arranged only locally on the third lens zone 15. It is permeable to a third wavelength range or a wavelength sub-range of the visible spectral range. This third wavelength sub-range of the visible spectral range is also smaller than the total wavelength range of the visible spectral range. Here, too, it is provided that the third wavelength sub-range overlaps at most only partially with the first, transmitted wavelength sub-range and / or at most only partially with the second, transmitted wavelength sub-range.In the exemplary embodiment, it is symbolically shown that the transmission filter 18 is permeable to blue light and in particular green light and red light are not allowed to pass through.

[0090] This means that Fig. 4 symbolically shows a constellation in which an eye lens focus AF1 of the artificial eye lens 1 is formed. Here, a monofocal artificial eye lens 1 is formed with only this one eye lens focus AF1. As shown in the illustration in Fig. As can be seen in Figure 4, the chromatic aberration present in the three basic lens body foci BFN, BFI and BFF is cleverly used to form a multichromic eye lens focus AF1 through individual and clever selection of wavelength ranges.

[0091] The transmission filter system 12 thus very cleverly enables a multichromic composition of the eye lens focus AF1 from wavelength subranges resulting from the chromatic aberration of the base lens body foci BFN, BFI, and BFF through, on the one hand, its local arrangement on the base lens body 10 and, in particular, its optical interaction with the specific lens zones 13 and / or 14 and / or 15. In particular, through deliberate and specific selection of the transmitted wavelength subranges.

[0092] The wavelengths not transmitted by the transmission filters 16, 17, and 18 are then blocked or filtered out. In this context, in the final artificial eye lens 1, only the eye lens focus AF1 remains as a multichrome focus. The base lens body foci BFN, BFI, and BFF are then no longer present, and their chromatic aberration is also virtually eliminated. This is because the remaining and selected wavelength subranges of these base lens body foci BFN, BFI, and BFF form a new eye lens focus AF1. This is then, as shown in the example in Fig. 4, on the main optical axis A, they are also formed differently from the base lens body foci BFN, BFI, and BFF. It is therefore intended that the base lens body foci BFN, BFI, and BFF are each eliminated as a whole and with their respective intended and utilized chromatic aberration, and that the wavelength ranges only transmitted and utilized by these base lens body foci BFN, BFI, and BFF due to their chromatic aberration merge, so to speak, into a new eye lens focus AF1.

[0093] It should be mentioned that, for the sake of clarity and explanation, the chromatic aberration of these foci of the base lens body 10 is shown in Fig. 4 are exaggerated.

[0094] In particular, it is intended that the longitudinal chromatic aberration of the eye lens focus AF1 is smaller than a longitudinal chromatic aberration of a base lens body focus, in particular of all base lens body foci BFN, BFI and BFF.

[0095] It should be mentioned again at this point that both the number and the arrangement of the lens zones 13, 14 and 15 are to be understood merely as examples and / or the design of the system 11, in particular of the transmission filter system 12, is to be understood merely as examples. In this context, the transmission filter system 12 can also be individually designed depending on the design of the base lens body 10, for example whether it is bifocal or trifocal, and / or the axial position of the respective base lens body foci and / or the chromatic aberration of these base lens body foci. Thus, it may then also be possible that, for example, no transmission filter is present on the lens zone 13 and / or on the lens zone 14. It is also possible that, for example, no transmission filter is present on the lens zone 14 and / or the lens zone 15.In another embodiment, it may also be provided that, for example, no transmission filter is present on the lens zone 13 and / or the lens zone 15. A corresponding arrangement is also possible with a bifocal configuration of the base lens body 10, so that there too, an individual transmission filter is arranged either on both existing lens zones, or only on one of the two lens zones, or on both lens zones.

[0096] It is also possible for the wavelength ranges or wavelength sub-ranges of the visible spectrum transmitted by the transmission filters 16 and / or 17 and / or 18 to be identical or different in their interval widths. In particular, it can be provided, for example, that these interval widths are different. Thus, it can be provided that, for example, even with a bifocal design of the base lens body 10, a transmission filter that is in optical interaction with an associated lens zone, for example, only transmits blue light and filters out the other wavelengths of the visible spectral range. It can then be provided that a second transmission filter, which is then in optical interaction with the other lens zone of the base lens body 10, filters out precisely this blue light and transmits the remaining wavelength sub-range of the visible spectral range.This not only makes it possible to individually filter blue light with such a bifocal design of the base lens body. This is advantageous not only in this embodiment, but also, for example, to improve vision with such an artificial eye lens 1 when using digital media, such as a tablet or a computer screen.

[0097] As in the example explained in Fig. 4, the at least one eye lens focus AF1 is multichrome, in particular it has the entire or substantially the entire spectrum of the visible spectral range.

[0098] In Fig. 5 shows a simplified representation of an embodiment of an optical part 2, in particular with a front side 3. In this embodiment, the front side 3 is designed with a diffractive structure. This can be formed here from two lens zones 13 and 14. The lens zone 13 here has a plurality of surface zones, in particular ring zones 130. Furthermore, the second lens zone 14 is also designed such that it each has a plurality of zone regions, in particular ring zones 140. As can be seen, the ring zones 130 and 140 are arranged alternately with one another in the radial direction to the main optical axis A. In particular, it is provided that the ring zones 130 of the first lens zone 13 form a bifocal lens. Furthermore, it is preferably provided that the plurality of ring zones 140 of the lens zone 14 also form a bifocal lens.The design and alternating arrangement of these specific zones 130 and 140 creates a zone system in the overall system that forms a trifocal lens. Therefore, in this embodiment, the base lens body 10 is trifocal.

[0099] As in Fig. 5, each annular zone is designed with a main subzone and an associated phase subzone or secondary subzone. By way of example, a main subzone 130a and a phase subzone 130b are formed in each case. This is also provided for the annular zones 140. There, too, a main subzone 140a and a phase subzone 140b are preferably provided in each case. In this respect, the phase subzones are smaller in area, in particular significantly smaller, than the respective main subzones. Preferably, they have a maximum area proportion that is less than or equal to 20 percent, in particular less than or equal to 10 percent of a main subzone. As further shown in Fig. As also indicated in Figure 5, the main subzones and the adjoining phase subzones have different curvatures. In particular, the main subzones and the phase subzones are arranged in a completely non-overlapping manner, as viewed radially relative to the main optical axis. This also means, in particular, that an angle between a main subzone and an adjoining phase subzone, in particular the respective tangents, is greater than 90 degrees.

[0100] A phase subzone and a corresponding main subzone are therefore arranged without overlap when viewed in the direction perpendicular to the main optical axis A.

[0101] In Fig. 6 shows a simplified representation of an optical main axis A and a main plane H of an artificial eye lens 1, in particular of a base lens body 10. In this embodiment, the base lens body 10 is again trifocal. However, in this configuration, it is provided that the artificial eye lens 1 has two different eye lens foci AF1 and AF2. These are formed here, for example, between two base lens body foci. The production of this bifocal eye lens 1 from a trifocal base lens body 10 is correspondingly as it is to Fig. 4. Here, too, the base lens body foci BFI, BFN; BFF are shown merely for clarity, as they are filtered out by the transmission filter system 12 and are no longer present on the entire eye lens 1. In particular, by appropriately configuring the lens zones 13, 14, and 15 and the individual chromatic aberrations, this configuration is enabled in optical interaction with a transmission filter system 12. This enables a defined coordination between the focal points and the chromatic aberrations. In this regard, the eye lens focus AF1 represents a distance focus, and the eye lens focus AF2 a near focus. Here, too, the eye lens foci AF1, AF2 preferably exhibit multichromaticity; in particular, the chromatic aberration of the eye lens foci AF1 and AF2 is smaller than the chromatic aberration in the shown base lens body foci BFN, BFI, and BFF.

[0102] An advantage of such a bifocal artificial eye lens 1 compared to a monofocal solution, such as Fig. 4, it can be seen that in one embodiment, the total transmission is higher. This is particularly the case, for example, because the intermediate part, i.e., the lens zone responsible for the base lens body intermediate focus (BFI) in the base lens body 10, can be omitted.

[0103] It should be mentioned again at this point that the individual configuration of the base lens body 10 with an individual number n of foci and / or their configuration, in particular with regard to the location and / or size and / or whether refractive or diffractive, and / or taking into account and individually defined setting and here even desired chromatic aberration with then optically coordinated interaction with a system 11, in particular a transmission filter system 12, enables a wide variety of artificial eye lenses 1 with regard to the number m and / or their axial position and / or their respective individual chromatic aberration.

[0104] In Fig. 7 is in a simplified representation as in Fig. 6 shows an embodiment in which the base lens body 10 is bifocal, namely, it has two base lens body foci BFN and BFF. The number m of eye foci here is 1, namely only the eye lens focus AF1. This is formed, viewed in the axial direction of the main optical axis A, between the two fictitious base lens body foci, which are masked out by the system 11.

[0105] It should only be mentioned for clarification that the examples according to Fig. 6 and Fig. 7 merely for the sake of understanding and clarification, the base lens body foci are also shown, but these are filtered out by the system 11, in particular the transmission filter system 12, in all those wavelength ranges that do not contribute to the eye lens foci AF1 and AF2 or only to AF1, and are therefore no longer present.

Claims

[1] Artificial eye lens (1) with at least one optical part (2) which has a front side (3) and a rear side (4) opposite the front side (3), wherein the optical part (2) has at least one base lens body (10) which has a number n, with n greater than or equal to 2, of base lens body foci (BFN; BF1; BFF), wherein the artificial eye lens (1) has a transmission filter system (12) with at least one transmission filter (16, 17, 18) which is in optically operative connection with the base lens body (10), characterized by that at least one base lens body focus (BFN; BFl; BFF) has chromatic aberration and, depending on its chromatic aberrations, a number m, with m greater than zero and less than n, of eye lens foci (AF1, AF2) of the artificial eye lens (1) is formed with the transmission filter system (12). [2] Artificial eye lens (1) according to claim 1, characterized bythat at least one eye lens focus (AF1, AF2), in particular all eye lens foci (AF1, AF2), are multichromic. [3] Artificial eye lens (1) according to claim 1 or 2, characterized by that the at least one eye lens focus (AF1, AF2) is formed along the main optical axis (A) of the artificial eye lens (1) offset from the base lens body foci (BFN; BF1; BFF). [4] Artificial eye lens (1) according to one of the preceding claims, characterized by that the base lens body (10) has at least one first lens zone (13) with which a first base lens body focus (BFN; BFl; BFF) is formed, and at least one second lens zone (14) different therefrom, with which a second base lens body focus (BFN; BFl; BFF) different from the first base lens body focus (BFN; BFl; BFF) is formed. [5] Artificial eye lens (1) according to claim 4, characterized bythat the lens zones (13, 14) each have a plurality of ring zones (130, 140) which are arranged alternately with one another in the radial direction to a main optical axis (A) of the artificial eye lens (1), wherein the alternating arrangement forms a zone system with which a third base lens body focus (BFN; BFl; BFF) different from the two base lens body foci (BFN; BFl; BFF) is formed. [6] Artificial eye lens (1) according to one of the preceding claims 4 or 5, characterized by that the transmission filter system (12) has a first transmission filter (16) which is arranged, in particular only, locally on one of the lens zones (13) and is permeable to a first wavelength range of the visible spectral range which is smaller than the total wavelength range of the visible spectral range. [7] Artificial eye lens (1) according to claim 6, characterized bythat the transmission filter system (12) has a second transmission filter (17) which is arranged, in particular only locally, on a different lens zone (14) than the first transmission filter (16) and is permeable to a second wavelength range of the visible spectral range which is smaller than the total wavelength range of the visible spectral range, in particular wherein the second wavelength range overlaps at most only partially with the first wavelength range. [8] Artificial eye lens (1) according to one of the preceding claims 6 or 7, characterized by that the first wavelength range which is transmitted by the first transmission filter (16) is different in the interval width from the interval width of the second wavelength range, in particular one wavelength range comprises only one wavelength, in particular blue light, and the other wavelength range does not comprise any blue light. [9] Artificial eye lens (1) according to one of the preceding claims, characterized by that the transmission filter system (12) filters out that wavelength range of the base lens body foci (BFN; BF1; BFF) exhibiting chromatic aberration which does not contribute to an eye lens focus (AF1, AF2). [10] Artificial eye lens (1) according to one of the preceding claims, characterized by that the transmission filter system (12) is operatively connected to the base lens body (10) and is tuned in such a way that the chromatic aberration of an eye lens focus (AF1, AF2) is smaller than a chromatic aberration of at least one base lens body focus (BFN; BF1; BFF) filtered out by the transmission filter system (12) in the remaining wavelength ranges. [11] Artificial eye lens (1) with at least one optical part (2) which has a front side (3) and a rear side (4) opposite the front side (3), wherein the optical part (2) has at least one base lens body (10) which has a number n, with n greater than or equal to 2, of base lens body foci (BFN; BF1; BFF) has, characterized by , that the artificial eye lens (1) has, in addition to the base lens body (10), a focus number changing and / or a focus number shifting system (11), with which a number m of eye lens foci (AF1, AF2) of the artificial eye lens (1) is formed depending on the chromatic aberration of the base lens body foci (BFN; BF1; BFF) and depending on the number n, wherein the number m is smaller than the number n and / or an eye lens focus (AF1, AF2) is offset along the main optical axis (A) of the artificial eye lens (1) to the base lens body foci (BFN; BF1; BFF).

Images