Optical lens
A UV metering layer in UV-sensitive lenses adjusts UV radiation based on temperature to stabilize optical parameters, addressing inconsistent tinting in photochromic lenses due to temperature changes.
Patent Information
- Application Number
- PCT/EP2025/068579
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-07-02
- Filing Date
- 2025-07-01
- Publication Date
- 2026-01-08
AI Technical Summary
UV-sensitive optical lenses, such as photochromic spectacle lenses, exhibit changes in optical parameters due to both UV radiation and temperature, leading to inconsistent tinting effects as temperature increases.
Incorporating a UV metering layer connected to a UV-sensitive substrate, which adjusts UV radiation levels based on lens temperature to compensate for temperature-induced changes in optical parameters, ensuring consistent tinting across varying temperatures.
The UV metering layer compensates for temperature sensitivity, maintaining consistent optical performance by adjusting UV radiation levels to minimize changes in photochromic tinting, thus achieving a more stable photochromic effect.
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Figure EP2025068579_08012026_PF_FP_ABST
Abstract
Description
[0001] Description
[0002] Optical lens
[0003] The present invention relates to an optical lens, spectacles with at least one optical lens and a method for manufacturing at least one optical lens.
[0004] In UV-sensitive optical lenses, an optical parameter of the lens changes under or during UV (Be) radiation. This optical parameter often depends not only on the UV (Be) radiation but also on the lens temperature. A particularly well-known example, which can also be a particularly advantageous application of the present invention, is photochromic spectacle lenses that tint under or during UV (Be) radiation, with this tint becoming less pronounced as the lens temperature increases.
[0005] An object of one embodiment of the present invention is to improve an optical lens, preferably its response to UV-(Be) radiation, and / or the manufacture of at least one optical lens.
[0006] This problem is solved in particular by an optical lens with the features of claim 1. Claims 10 and 11 protect spectacles with at least one optical lens described herein and a method for manufacturing at least one optical lens described herein, respectively. "Providing" within the meaning of the present invention may in particular include manufacturing, storing and / or retrieving, positioning and / or shipping, or the like. The dependent claims relate to advantageous embodiments.
[0007] According to one embodiment of the present invention, an optical lens comprises a UV-sensitive substrate and a UV metering layer connected to this substrate, preferably by a material bond and / or directly or indirectly, in particular via one or more further (intermediate) layers. In one embodiment, the optical lens is an optical lens designed or intended for use as a spectacle lens or used as a spectacle lens; in a further embodiment, it is a spectacle lens, or a spectacle lens semi-finished product, in particular a spectacle lens blank or so-called blank.
[0008] The present invention is particularly suitable for this purpose, especially due to the requirements for eyeglasses (lenses), but is not limited to this.
[0009] According to one embodiment of the present invention, the UV metering layer reduces UV radiation incident on the lens, in one embodiment a radiometric quantity, in particular an energy value, of the incident UV radiation, in particular a radiative energy, irradiance, irradiance, radiant intensity, a radiant flux or the like, depending on a temperature of the lens, in particular of its UV metering layer(s), to UV radiation emitted by the UV metering layer to the substrate or its corresponding radiometric quantity, in particular a corresponding energy value, of the UV radiation, in particular a radiative energy, irradiance, irradiance, radiant intensity, a radiant flux or the like, or the lens or its UV metering layer is designed or configured in this way.
[0010] According to one embodiment of the present invention, a (value of a) one- or multi-dimensional optical parameter(s) of the carrier, preferably fully or partially reversibly, depends on a temperature of the lens, in particular of the carrier(s), and on a UV radiation emitted from the UV metering layer to the carrier, in one embodiment on a radiometric quantity, in particular an energy value, of the UV radiation emitted from the UV metering layer to the carrier, in particular radiant energy, irradiance, irradiance, radiant intensity, radiant flux or the like.
[0011] In one embodiment, the value of the optical parameter(s) of the support depends on the photochromicity and / or photoluminescence of the support; in a further development, it describes or specifies this, for example, a preferably percentage-based photoluminescent emission, photochromic transmission, photochromic absorption, or photochromic tinting, in particular photochromic darkening or photochromic coloring, or the like. This preferably percentage-based value can refer in particular to an ideal support; for example, a completely black, completely opaque, or completely absorbing support has a transmission (degree) of 0% and an absorption (degree) of 100%, and a completely transparent or completely transparent support has a transmission (degree) of 100% and an absorption (degree) of 0%.Similarly, the preferably percentage value can also refer to a maximum variation of the parameter(s) of the respective real carrier, for example, a maximally tinted carrier has a transmission (degree) of 0% and an absorption (degree) of 100%, and a minimally tinted carrier has a transmission (degree) of 100% and an absorption (degree) of 0%, or a maximally luminous carrier has an emission (degree) of 100% and a minimally luminous carrier has an emission (degree) of 0%.
[0012] Photoluminescence and especially photochromism are particularly advantageous applications, so that a UV-sensitive support can in particular be a support that tints or glows under or during UV (Be) radiation, preferably at least partially reversibly, and whose optical parameters depend accordingly on a photochromism or photoluminescence of the support, and can in particular describe these, without the invention being limited to this.
[0013] According to one embodiment of the present invention, a temperature change of the lens from a first to a second operating temperature causes a reduction of the UV radiation incident on the lens to the UV radiation emitted by the UV metering layer to the substrate, which at least partially compensates for a change in the parameter value of the optical parameter as a result of this temperature change, or the lens or its UV metering layer and substrate are designed or configured in this way, in particular the UV metering layer and substrate are matched to each other.
[0014] In one embodiment, the lens, in particular its UV metering layer and carrier, is / are designed or configured in such a way, in particular the UV metering layer and carrier are coordinated with each other in such a way that for one (i=1) or more (i=1 , 2,... ) tuples {Ti, T2, EI , E2, PI , API , AP2, E3}
[0015] • a first temperature Ti of the lens and a second, higher temperature T2 of the lens in one version,
[0016] • a first energy value Ei of UV radiation emitted from the UV dosing layer to the substrate and a second, higher energy value E2 of UV radiation emitted from the UV dosing layer to the substrate,
[0017] • a first parameter value Pi of one of the optical parameters of the carrier,
[0018] • a first deviation AP1 from this first parameter value and a second deviation AP2 from this first parameter value, and
[0019] • a third energy value E3 of the UV radiation incident on the lens, which in one version is higher than the second energy value E2, in each case:
[0020] - the optical parameter of the carrier
[0021] - at the first temperature Ti and the first energy value Ei, the first parameter value Pi is (P(Ti, Ei) = Pi ),
[0022] - at the second temperature T2 and the first energy value Ei, the first deviation AP1 from the first parameter value Pi is shown (AP(T2, Ei) = AP1), and at the second temperature T2 and the second energy value E2, the second deviation AP2 from the first parameter value Pi is shown (AP(T2, E2) = AP2), which is smaller than the first deviation (AP2 < AP1) and can be zero or as small as possible in one implementation; and
[0023] - the UV dosing layer reduces the third energy value E3 - at the first temperature Ti to the first energy value Ei (E3(TI) = Ei), and
[0024] - at the second, higher temperature T2 in one version, energy value E2 is reduced (Es(T2) = E2).
[0025] Accordingly, the UV dosing layer reduces the third energy value E3 of the UV radiation incident on the lens at temperature Ti or T2 to energy value Ei or E2, respectively. While the optical parameter of the substrate does change by AP1 due to a temperature change from Ti to T2 with the same UV radiation Ei emitted to it, the UV radiation emitted to the substrate decreases from Ei to E2 due to the temperature-sensitive UV dosing layer. Therefore, the overall change in the optical parameter of the substrate is smaller or at least partially compensated: (AP2 = |P(Ti , Ei) - P(T2, E2)| < AP1 = |P(Ti , EI) - P(T2, EI )|).
[0026] One embodiment of the present invention is based on the idea of reducing or at least partially compensating for the temperature sensitivity or dependence of the UV-(Be) radiation-induced change in the (parameter value) of the optical parameter of the UV-sensitive carrier, for example, the photochromic tinting, the photoluminescent glow, or the like, by ensuring that the UV metering layer reacts in the same direction to the temperature (change), so that, for example, at higher temperatures the UV-sensitive carrier reacts less strongly to UV-(Be) radiation, for example, tinting or...The UV-sensitive carrier reacts more strongly to UV-sensitive radiation at lower temperatures, for example by tinting or glowing. However, due to the higher temperatures, the UV-dosing layer also reduces the UV-sensitive radiation less effectively, so that the carrier that reacts less strongly to UV-sensitive radiation is exposed to more UV radiation to compensate. Conversely, at lower temperatures, the UV-sensitive carrier reacts more strongly to UV-sensitive radiation, for example by tinting or glowing. However, due to the lower temperatures, the UV-dosing layer also reduces the UV-sensitive radiation more effectively, so that the carrier that reacts more strongly to UV-sensitive radiation is exposed to less UV radiation to compensate.
[0027] In one embodiment, the carrier has a lens base body, preferably a lens base body that is made entirely or partially of plastic, preferably thermoformed, and / or machined by material removal, and / or has a front side that is preferably object-side or environmental-side and / or at least partially concave or convex, and / or a back side that is preferably eye-side or ocular-side and / or at least partially concave or convex.
[0028] In one version, this lens base body is made of a UV-sensitive material; in a further development, it is photochromic and / or photoluminescent.
[0029] By means of a lens base body made from a UV-sensitive material, which in a further development becomes photochromic or photoluminescent, a UV-sensitive optical parameter of the substrate, which is particularly dependent on photochromicity and / or photoluminescence of the substrate, can be realized particularly advantageously, especially in a compact manner.
[0030] Additionally or alternatively, according to one embodiment of the present invention, the carrier has at least one UV-sensitive, in a further embodiment photochromic and / or photoluminescent, casting layer, preferably molded onto the lens base body, preferably on the front surface of the lens base body. In one embodiment, the casting layer is produced by casting UV-sensitive, in a further embodiment photochromic and / or photoluminescent, material onto the lens base body, which is either completely or partially manufactured, and in particular, at least partially solidified during primary forming, preferably in the (negative) mold used for primary forming the lens base body.
[0031] With such a casting layer made of a UV-sensitive, in a further development photochromic or photoluminescent, material, a UV-sensitive optical parameter of the carrier, which is particularly dependent on a photochromicity and / or photoluminescence of the carrier, can also be realized particularly advantageously, especially variably.
[0032] In addition to or as an alternative to a UV-sensitive lens substrate material and / or a UV-sensitive casting layer, according to one embodiment of the present invention, the carrier has at least one UV-sensitive, in a further development photochromic and / or photoluminescent, coating, preferably of the lens substrate, which is preferably produced by means of a coating process, in a further development by means of a rotary coating process or dip coating process.
[0033] Such a UV-sensitive, or in further development photochromic or photoluminescent, coating can advantageously be made particularly thin.
[0034] In one embodiment, the carrier consists of the lens base body and optionally the UV-sensitive casting layer(s) and optionally the UV-sensitive coating(s) of the lens base body and is or is connected to the UV metering layer.
[0035] In one embodiment, the UV dosing layer has at least one photochromic layer for reducing UV radiation to which the substrate is (UV-)sensitive. In another embodiment, the layer is made of a photochromic material for reducing UV radiation to which the substrate is (UV-)sensitive. In a further embodiment, the maximum photochromic absorption of the UV dosing layer is shifted to a shorter wavelength relative to the maximum photochromic absorption of the UV-sensitive photochromic substrate. This means that, in particular, the UV dosing layer has no or only a slight visible effect, or does not superimpose, or only minimally superimposes, the photochromic effect of the substrate in the visible light wavelength range. Generally, in one embodiment, the UV dosing layer has no or only a slight visible UV-induced tint, in particular coloring and / or darkening, and / or light emission.in the visible light wave range, the photochromicity of the UV dosing layer is more pronounced than that of the substrate, allowing its photochromicity or photoluminescence to be particularly advantageously matched. Similarly, in an advantageous embodiment, an additional photochromicity of the UV dosing layer in the visible light wave range can be superimposed on the photochromicity of the substrate in the visible light wave range, or these can be matched to each other, in order to achieve advantageous (overall) photochromicity of the lens in the visible light wave range.
[0036] In the present context, photochromism or photoluminescence is understood to mean, in particular, the tinting, especially coloring and / or darkening, or light emission upon activation by UV radiation; a photochromic or photoluminescent material or photochromic or photoluminescent coating is accordingly understood to mean, in particular, a material or coating that tints, especially darkens or colors, or glows upon activation by UV radiation.
[0037] In one version, the UV metering layer and / or the UV-sensitive coating is produced using a coating process.
[0038] This allows the UV dosing layer to bond particularly well to the substrate, especially directly to a lens base made of a UV-sensitive material, or directly to a UV-sensitive sprue layer, or directly to a UV-sensitive coating of the substrate. Accordingly, the UV dosing layer is produced in one version using a coating process directly onto a lens base made of a UV-sensitive material, or directly onto a UV-sensitive sprue layer of the substrate, or directly onto a UV-sensitive coating of the substrate.
[0039] In a particularly advantageous embodiment, the UV metering layer is produced by means of a spin coating process. In a particularly advantageous further development, it is applied directly to a lens substrate made of a UV-sensitive material, or directly to a UV-sensitive casting layer of the substrate, or directly to a UV-sensitive coating of the substrate. In one embodiment, the substrate is fixed to a rotary platform ("chuck"), in a further development by means of vacuum suction on the underside, and the desired quantity of a UV-sensitive solution is applied by a metering device, in a further development above the center of the substrate. This solution is preferably distributed uniformly over the substrate surface, with any excess material being flung off the substrate.
[0040] This allows the UV metering layer to be formed particularly advantageously and / or to be bonded particularly well to the substrate, especially directly to a lens base body made of a UV-sensitive material or directly to a UV-sensitive casting layer of the substrate or directly to a UV-sensitive coating of the substrate.
[0041] In a particularly advantageous embodiment, the UV metering layer is produced by means of a dip coating process. In a particularly advantageous further development, it is produced directly on a lens substrate made of a UV-sensitive material, or directly on a UV-sensitive casting layer of the carrier, or directly on a UV-sensitive coating of the carrier. In one embodiment, the carrier is wholly or partially immersed in a bath containing a solution of UV-sensitive material.
[0042] This allows the UV metering layer to be designed particularly advantageously and / or to be bonded particularly well to the substrate, especially directly to a lens base body made of a UV-sensitive material or directly to a UV-sensitive casting layer of the substrate or directly to a UV-sensitive coating of the substrate.
[0043] In one embodiment, the UV dosing layer, particularly at at least one temperature and / or under at least one specific UV irradiation, has a different color than the substrate. This allows the UV dosing layer to achieve a different color for the optical lens compared to the substrate alone. In another embodiment, the UV dosing layer is colorless or clear. This allows for particularly advantageous matching of the substrate color.
[0044] Additionally or alternatively, in one embodiment, the UV dispensing layer, particularly at at least one temperature and / or at least one specific UV irradiation, exhibits a different, preferably higher or lower, reaction rate induced by UV (Be) radiation ("UV reaction rate") than the substrate. A higher UV reaction rate of the UV dispensing layer advantageously allows a temperature-induced change in the substrate to be compensated for at least partially, either in advance or even as it is occurring. Conversely, a lower UV reaction rate of the UV dispensing layer advantageously allows a UV-induced change in the optical parameter of the substrate to be less affected initially and thus occur more rapidly.
[0045] Additionally or alternatively, in one embodiment, the UV dispensing layer exhibits a different maximum reaction or change under UV radiation ("UV reaction") than the substrate, particularly at at least one temperature. In particular, the maximum UV reaction is weaker or stronger than that of the substrate. A stronger maximum UV reaction of the UV dispensing layer advantageously allows for significant compensation of temperature-induced changes in the substrate. Conversely, a weaker maximum UV reaction of the UV dispensing layer advantageously allows for simpler and / or thinner production of the UV dispensing layer.
[0046] In general, one embodiment includes a wall thickness of the UV dosing layer at at least one location on the lens and / or a maximum, average, and / or minimum wall thickness of the UV dosing layer that is smaller than the wall thickness of the lens base, in a further development of the lens body (alone) and / or the sprue (alone), at this location on the lens and / or a maximum, average, and / or minimum wall thickness of the lens base, in a further development of the lens body and / or the sprue. Additionally or alternatively, one embodiment includes a wall thickness of the sprue at at least one location on the lens and / or a maximum, average, and / or minimum wall thickness of the sprue that is smaller than the wall thickness of the lens body at this location on the lens and / or a maximum, average, and / or minimum wall thickness of the lens body.
[0047] In one embodiment, the UV dispensing layer, particularly in at least one temperature range and / or at least one UV wavelength range that excites or activates the UV-sensitive substrate and the UV dispensing layer, absorbs UV radiation more strongly and / or makes visible light less photochromic than the photochromic substrate. This allows the UV dispensing layer to advantageously compensate more effectively and unobtrusively.
[0048] In one embodiment, the UV metering layer is arranged, in particular directly, on a front surface of the substrate; in a further development, directly on a lens base body made of a UV-sensitive material, or directly on a UV-sensitive casting layer of the substrate, or directly on a UV-sensitive coating of the substrate. In one embodiment, a front surface is a side facing the object (in) or the environment in a typical or design viewing direction through the lens.
[0049] This allows the lens strength or thickness to be reduced and / or the UV dosing layer to be activated more effectively in one version.
[0050] In another embodiment, the UV metering layer is arranged, in particular directly, on the back side of the substrate; in a further development, directly on a lens base body made of a UV-sensitive material, or directly on a UV-sensitive casting layer of the substrate, or directly on a UV-sensitive coating of the substrate. In one embodiment, the back side is the eye-side or ocular-side side in a typical or design viewing direction through the lens.
[0051] This also allows the lens strength or thickness to be reduced and / or the wearer to be advantageously activated in one version.
[0052] In one embodiment, one or more further layers are arranged between the UV metering layer and the substrate, which are arranged accordingly on a substrate-facing side of the UV metering layer; in a further development, one or more adhesion-enhancing or adhesion-promoting or adhesive layers and / or photochromic and / or finishing layers, in particular one or more care layers and / or one or more anti-reflective layers (AR layer(s)) and / or one or more anti-scratch or hard layers and / or one or more anti-fog and / or anti-dirt layers.
[0053] This allows the bond between the UV dosing layer and the substrate to be improved and / or the protection of this additional layer(s) in one version.
[0054] In one embodiment, one or more further layers are arranged on a side of the UV metering layer facing away from the substrate; in a further development, one or more photochromic and / or finishing layers are arranged, in particular one or more care layers and / or one or more anti-reflective layers (AR layer(s)) and / or one or more anti-scratch or hard layers and / or one or more anti-fog and / or anti-dirt layers.
[0055] This allows the performance of the optical lens to be improved and / or the UV dosing layer to be protected in one version.
[0056] According to one embodiment of the present invention, a method for manufacturing one or more optical lenses described herein comprises the following steps: - providing the UV-sensitive, in a further embodiment photochromic and / or photoluminescent, carrier of the (respective) lens to be manufactured; in a further embodiment manufacturing and / or positioning the carrier, in particular in a corresponding manufacturing system; and
[0057] - Forming the UV metering layer of this lens, preferably connected to this carrier, preferably by means of a coating process.
[0058] Further advantages and features will become apparent from the dependent claims and the exemplary embodiments. These are shown, in part schematically:
[0059] Fig. 1: an optical lens according to one embodiment of the present
[0060] Invention at a first temperature and a first energy value of UV radiation emitted from a UV metering layer to a lens support;
[0061] Fig. 2: the optical lens at a second temperature and a second
[0062] Energy value of the UV radiation emitted from the UV dosing layer to the substrate; and
[0063] Fig. 3: the optical lens at the second temperature and the first
[0064] Energy value of the UV radiation emitted from the UV dosing layer to the substrate.
[0065] Fig. 1 shows an optical lens according to an embodiment of the present invention at a first temperature and a first energy value of UV radiation emitted from a UV metering layer 10 to a support 20 of the lens.
[0066] UV radiation is indicated in the figures by dotted wavy lines or arrows, visible light by solid wavy lines or arrows.
[0067] Different energy levels of radiation are indicated in the figures by varying arrow density, with fewer arrows indicating lower energy levels. Accordingly, Fig. 1 illustrates that UV radiation (the third energy level) incident on the lens or UV metering layer 10 is reduced at the first temperature to UV radiation (the first energy level) emitted by the UV metering layer 10 to the substrate 20.
[0068] Through or during the UV radiation emitted to the carrier 20 (with the first energy value), the carrier 20 becomes photochromic, which is indicated by a reduction of visible light and corresponds to a first parameter value of an optical parameter of the carrier, for example a transmission (s) or absorption (s) rate.
[0069] For the sake of simplicity, the figures do not show any attenuation of visible light by the UV dosing layer 10, nor do they show any UV radiation penetrating the substrate. If the UV dosing layer 10 also exhibits visible tinting and thus contributes to the (overall) photochromism of the lens (as explained, but not shown in the figures for simplicity), the photochromic properties of the UV dosing layer 10 and the substrate 20 can be advantageously matched to each other in order to achieve, at least approximately, the desired (overall) photochromism of the lens.
[0070] Fig. 2 shows the optical lens at a higher second temperature, corresponding to Fig. 1.
[0071] As the comparison of Figs. 1 and 2 suggests, the UV metering layer 10 reduces the same (third) energy value of UV radiation incident on the lens or UV metering layer 10 (cf. the same arrow density on the front (left) in Figs. 1 and 2) at the first temperature (cf. Fig. 1) to the first energy value and at the second temperature (cf. Fig. 2) to a second energy value that is higher than the first energy value (cf. the higher dashed arrow density on the back (right) of the UV metering layer 10 in Fig. 2).
[0072] The carrier 20 reacts less strongly to UV (Be) radiation at the higher second temperature. However, as explained above, at the higher second temperature the UV metering layer 10 also emits more UV radiation to it or transmits it further. This at least partially compensates for the temperature-related weakening of the photochromic tint, which is ideally indicated in Figs. 1, 2 by the same arrow density of visible light on the back of the lens (right in Figs. 1, 2).
[0073] For clarification and illustration, Fig. 3 shows a configuration in which the carrier 20 is exposed to the same UV radiation or the same first energy value at the higher second temperature as in Fig. 1 (cf. the same UV arrow density on the front of the carrier 20 in Figs. 1 and 3). This can be achieved, for example, by correspondingly weaker UV irradiation of the UV metering layer 10, which is less UV-effective due to the higher temperature. This is indicated in Fig. 3 by a lower UV arrow density on the front of the lens or UV metering layer 10 (left in Fig. 3). Since the photochromism of the carrier 20 is weaker at this higher second temperature, more visible light then reaches the back of the lens (right).
[0074] Accordingly, the second deviation (at the second temperature and the second energy value, see Fig. 2) from the first parameter value (at the first temperature and the first energy value, see Fig. 1) is smaller (ideally equal to zero in Fig. 1, 2) than the first deviation (at the second temperature and the first energy value, see Fig. 3) from the first parameter value (at the first temperature and the first energy value, see Fig. 1).
[0075] If one imagines the UV metering layer 10 according to the invention removed, a comparison of Figs. 1 and 3 shows that, due to the higher temperature (see Fig. 3), with the same UV irradiation of the then sole carrier 20 (see the same UV arrow density on the front of the carrier 20 in Figs. 1 and 3), more visible light reaches the eye side (right in Figs. 1 and 3). This means that at different temperatures, the same UV irradiation does not produce the same tinting, so that an optimal tint at one temperature is not achieved at another. Comparing this with Figs. 1 and 2, the lens, ideally, tints the same at the first and second temperatures with the same UV irradiation due to the combination of the UV-sensitive carrier with the UV metering layer.
[0076] In other words, according to the invention, a more temperature-stable photochromic effect is advantageously achieved.
[0077] In the present disclosure, "has an X" does not generally imply an exhaustive list, but is a shorthand for "has at least one X" and also includes "has two or more X" as well as "has Y in addition to X". Although exemplary embodiments were explained in the preceding description, it should be noted that a multitude of variations are possible. Furthermore, it should be noted that the exemplary embodiments are merely examples and are not intended to limit the scope of protection, applications, or structure in any way.Rather, the preceding description provides the skilled person with a guide for implementing at least one exemplary embodiment, whereby various modifications, particularly with regard to the function and arrangement of the described components, can be made without leaving the scope of protection as defined by the claims and these equivalent combinations of features.
[0078] List of reference signs
[0079] 10 UV dosing layer
[0080] 20 UV-sensitive carrier UV1 UV radiation incident on the lens
[0081] UV2 UV radiation emitted to the wearer
Claims
Patent claims 1. Optical lens, in particular spectacle lens or spectacle lens semi-finished product, comprising: - a UV-sensitive carrier (20); and - a UV dosing layer (10) connected to the substrate; wherein the UV dosing layer reduces UV radiation (UV1) incident on the lens to UV radiation (UV2) emitted by the UV dosing layer to the substrate, depending on the temperature of the lens; an optical parameter of the substrate depends on the temperature of the lens and UV radiation emitted by the UV dosing layer to the substrate; and a temperature change of the lens from a first to a second operating temperature causes a reduction of the UV radiation (UV1) incident on the lens to UV radiation (UV2) emitted by the UV dosing layer to the substrate by the UV dosing layer, which at least partially compensates for a change in the parameter value of the optical parameter as a result of this temperature change.
2. Optical lens according to claim 1, characterized in that the optical parameter of the support depends on a photochromicity and / or photoluminescence of the support.
3. Optical lens according to one of the preceding claims, characterized in that the carrier has a lens base body, wherein the lens base body is made of a UV-sensitive material and / or the carrier has at least one UV-sensitive casting layer and / or at least one UV-sensitive coating.
4. Optical lens according to one of the preceding claims, characterized in that the UV metering layer has at least one photochromic layer for reducing UV radiation.
5. Optical lens according to one of the preceding claims, characterized in that the UV metering layer is colorless or has a different color than the substrate and / or the UV metering layer has a different UV reaction rate and / or maximum UV reaction than the substrate and / or absorbs UV radiation more strongly and / or visible light less strongly photochromically than the photochromic substrate.
6. Optical lens according to one of the preceding claims, characterized in that the UV metering layer is arranged on a front side of the carrier.
7. Optical lens according to one of the preceding claims 1-5, characterized in that the UV metering layer is arranged on a back side of the carrier.
8. Optical lens according to one of the preceding claims, characterized in that at least one further layer is arranged on a side of the UV metering layer facing away from the carrier and / or at least one further layer is arranged on a side of the UV metering layer facing the carrier.
9. Optical lens according to one of the preceding claims, characterized in that the lens is configured such that for at least one tuple consisting of a first and second temperature of the lens, a first and second energy value of UV radiation emitted from the UV metering layer to the substrate, a first parameter value of an optical parameter of the substrate, a first and second deviation from this first parameter value, and a third energy value of UV radiation incident on the lens - the optical parameter of the carrier at the first temperature and the first energy value has the first parameter value, at the second temperature and the first energy value, the first exhibits a deviation from the first parameter value, and at the second temperature and the second energy value, the second exhibits a deviation from the first parameter value that is smaller than the first deviation; and - the UV dosing layer reduces the third energy value to the first energy value at the first temperature, and to the second energy value at the second temperature.
10. Eyeglasses with at least one optical lens according to one of the preceding claims.
11. Method for manufacturing at least one optical lens according to any one of the preceding claims, wherein the method comprises the steps: - Providing the UV-sensitive substrate for the lens to be manufactured; and - Formation of the UV metering layer of this lens, which is connected to this carrier.
Citation Information
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