Masking device for masking spectacle lens products in a coating device, coating device and method for manufacturing spectacle lens products

Abstract

A shielding device (100) is provided for shielding an eyeglass lens product (102) in a coating apparatus (118). The shielding device (100) includes a retainer element (104) for holding the eyeglass lens product (102) relative to a carrier (106) of the coating apparatus (118). The shielding device (100) also includes a support frame (108) mountable on or on the carrier (106) of the coating apparatus (118), wherein when the support frame (108) is mounted on the carrier (106), the support frame is rotatable about a rotation axis (114), and wherein when the support frame (108) is mounted on the carrier (106), the support frame at least partially surrounds the retainer element (104). The masking device (100) also includes a masking template (110) mounted on a support frame (108) such that the masking template (110) can be rotated about a rotation axis (114) via the support frame (108) to move from a masking position (112) to a hidden position (116), or from a hidden position to a masking position.

Description

Background Technology

[0001] In some cases, the convex side of the lenses used in sunglasses may be mirrored to adjust the optical transmittance of the lenses and / or for fashion purposes. A mirror coating can be applied to provide reflectivity, which in simple cases can be achieved by applying a thin (i.e., approximately 20 nm to approximately 100 nm thick) metal layer. The coating material may optionally include chromium, silver, and / or aluminum. The reflective color of the metal coating can substantially correspond to the reflective color of the selected solid metal, thereby making the coating translucent due to its thin layer thickness and thus reflecting less light compared to a comparable solid material.

[0002] Thin coatings are applied to the surface of eyeglass lens products in a vacuum coating apparatus, for example by means of vapor deposition (such as physical vapor deposition (PVD)). During this coating process, the eyeglass lens products are placed above a vapor source from which coating material is applied to the lens surface facing the vapor source. A large number of eyeglass lens products are typically placed on a cap-shaped support within the vacuum chamber of the coating apparatus. To achieve the same coating on all eyeglass lens products at different locations on the support, the support can be rotated about its central axis during the coating process.

[0003] Surface mirror coatings on eyeglass lenses used in sunglasses can also be achieved using coatings based on multiple thin dielectric layers. In this coating process, thin layers with different refractive indices are applied one after another, for example by means of PVD, resulting in a layer stack. In the simplest case, a dielectric layer with a low refractive index (e.g., SiO2) is followed by a layer with a high refractive index (e.g., TiO2). Although incident visible light passes through a single dielectric layer with almost no absorption, some light is partially reflected at the interfaces of the layers in the stack. By appropriately selecting the layer materials and layer thicknesses, precisely defined optical interference between the reflected and transmitted portions of the incident light beam can be achieved. In this way, the transmission and reflection of incident light can be tuned to almost any degree. In particular, based on dielectric coatings, not only can reflection be reduced, but highly reflective coatings, i.e., mirror-like surface coatings, can also be provided alternatively.

[0004] Mirror coatings, composed of individual dielectric layers, typically have a defined reflective color after production, such as red, blue, or green. The reflective color is determined by the structure of the stack, the thickness of each layer, and their refractive index. Changing the thickness of any individual layer in the stack can alter the reflective color. This is described, for example, in patent specification DE102012013683B.

[0005] Furthermore, spatial structures can be created within reflective coatings used in eyeglass lens products. In simple cases, this can be achieved by manually covering a portion of the lens surface before applying the coating (e.g., using a process known as Tambo printing or pad printing). In this process, a pattern is printed onto the uncoated eyeglass lens product using a mold and ink.

[0006] A reflective coating is then applied to the partially covered spectacle lens product. If the coating (e.g., ink) is removed from the spectacle lens product after the coating process, a pattern corresponding to the applied coating appears on the spectacle lens product, appearing as a shadow image of the coating.

[0007] The pattern produced on the spectacle lens product using the above-described coating process can show a monochrome mirror layer on the uncovered portion of the lens surface. To obtain a two-tone mirror pattern, a Tambo print or coating must be applied to a coating previously applied to the spectacle lens product; the color of this coating can be different from the mirror layer applied after the Tambo print or the applied coating. In this case, two coating processes need to be performed in a vacuum, thus requiring the Tambo print pattern to be applied between the two coating processes performed in the vacuum. To do this, the spectacle lens product must be removed from the coating system so that the pattern can be applied to the spectacle lens product using the Tambo print process outside the coating system. Document US2014 / 0055743A1 describes a method that includes removing the applied coating in a wet etching process, for which the spectacle lens product is removed from a vacuum.

[0008] When removing Tambo printing ink after coating, for example by wiping the ink off with solvent and a cloth, the coating on the uncovered parts of the lens may be damaged, which may cause the eyeglass lens product to fail.

[0009] Document EP 3 296 423 A1 describes a vacuum coating apparatus comprising a masking arrangement having multiple gradient sector portions. The gradient sector portions of this masking arrangement are rotatable about the rotation axis of a substrate holder to move from a gradient mask open position to a gradient mask closed position. The gradient sector portions are adapted to carry multiple gradient shields. Therefore, when the gradient sector portions are moved to the gradient mask closed position, multiple substrates may be collectively affected by the gradient sector portions. Furthermore, a disadvantage of needing to move the gradient sector mask to the gradient sector mask open position is that the effective available space in the coating apparatus for coating the substrates is reduced due to the space consumed by the gradient sector mask stored in the open position. Given that EP 3296 423 A1 is the closest prior art, the objective technical problem of the claimed subject matter may relate to facilitating a method for efficiently applying a coating to the surface of one or more individual spectacle lens products in a vacuum chamber.

[0010] US 2019 / 136364 describes a coating apparatus for selectively applying a functional coating using a movable template.

[0011] US 2023 / 151478 describes a coating apparatus having a mounting base for rotating an article in a coating opening. Summary of the Invention

[0012] This problem is solved by a shielding device, a coating device, and a method for manufacturing spectacle lens products having the features of the respective independent claims. Optional embodiments are provided in the dependent claims and description.

[0013] In one aspect, a shielding device is provided for shielding an eyeglass lens product in a coating apparatus. The shielding device includes a retainer element for holding the eyeglass lens product relative to a carrier of the coating apparatus. The shielding device also includes a support frame that can be mounted on or on the carrier of the coating apparatus, wherein when mounted on the carrier, the support frame is rotatable about a rotation axis, and wherein when mounted on the carrier, the support frame at least partially surrounds the retainer element. The shielding device further includes a shielding template mounted on the support frame such that rotation of the support frame about a rotation axis allows the shielding template to move from a shielded position to a hidden position, or from a hidden position to a shielded position.

[0014] Furthermore, a coating apparatus is provided for coating one or more spectacle lens products by vapor deposition. The coating apparatus includes: a vacuum chamber including a vapor source for at least partially coating one or more spectacle lens products by vapor deposition; and a carrier having a plurality of mounting slots. The coating apparatus also includes a plurality of shielding devices according to this disclosure, wherein one of the plurality of shielding devices is mounted in each of the plurality of mounting slots of the carrier. Furthermore, the coating apparatus includes one or more force generators for applying forces to one or more support frames of the plurality of shielding devices to rotate the one or more support frames about their respective axes of rotation, thereby switching the shielding template of the one or more shielding devices from a hidden position to a shielded position, or from a shielded position to a hidden position.

[0015] Additionally, a method for manufacturing an eyeglass lens product is provided. The method includes arranging the eyeglass lens product, mounted on a carrier, in a vacuum chamber and evacuating the vacuum chamber. The step of arranging the eyeglass lens product in the vacuum chamber includes: mounting the eyeglass lens product in a retainer element, wherein the retainer element is at least partially surrounded by a support frame mounted on a carrier (106) of a coating apparatus, and wherein the support frame is rotatable about a rotation axis. Arranging the eyeglass lens in the vacuum chamber further includes: providing a masking template mounted on the support frame, and arranging the retainer element and the support frame on the carrier of the coating apparatus. The method further includes: applying a first coating to the surface of the eyeglass lens product by vapor deposition when the masking template is in a concealed position; and moving the masking template relative to the eyeglass lens product to a concealed position by rotating the support frame about a rotation axis, and applying a second coating to the surface of the eyeglass lens product when the masking template is in the concealed position. Alternatively or additionally, the order can be reversed, i.e., when the masking template is installed in the masking position, a first coating can be applied to the surface of the eyeglass lens product by vapor deposition, then the masking template is moved to the hidden position, and when the masking template is in the hidden position, a second coating can be applied to the surface of the eyeglass lens product.

[0016] The carrier can be a carrier used to support eyeglass lens products during a coating process performed in a vacuum. The carrier can be cap-shaped, meaning its shape can follow the shape of a cap. Therefore, the carrier can be dome-shaped, wherein the dome can have the shape of a hemisphere or any other part of a sphere having the shape of a spherical cap or spherical dome. The carrier can have the appearance of a spherical cap, but can deviate from the strict mathematical shape of a spherical cap. The carrier can be rotationally symmetric about a central axis, wherein the central axis can form the central axis of the sphere defining the shape of the cap that describes the shape of the carrier. The cap-shaped form of the carrier can have a radius of curvature in the range of 0.5 m to 2 m, particularly in the range of 0.5 m to 1 m; that is, the sphere describing the shape of the cap-shaped holder can have a radius of curvature in the range of 0.5 m to 2 m, particularly in the range of 0.5 m to 1.2 m or 0.8 m to 1.2 m. If the radius of curvature of the cap-shaped support differs at different height positions, then the radius of curvature at any position can be within a specified range. In other words, any radius of curvature exhibited by the support can be entirely within the specified range. The support can be adapted to accommodate multiple eyeglass lens products, such as 100 or more eyeglass lens products.

[0017] The coating apparatus can be a device for receiving a carrier for coating one or more spectacle lens products supported by the carrier. The coating apparatus can be adapted to coat one or more spectacle lens products by vapor deposition. The coating apparatus may include a vacuum chamber for receiving the carrier and for storing the carrier in a vacuum during the coating process.

[0018] The concealed location can be a position where the masking template can be arranged so as not to prevent the coating from being applied to the surface of the eyeglass lens product. The concealed location can optionally be located on the opposite side of the eyeglass lens product relative to the vapor source used to apply the coating.

[0019] The retainer element can be a mechanical element that can be attached to the spectacle lens product to position the spectacle lens product on the carrier. The retainer element can be adapted to be fixed to a mounting groove on the carrier in a manner that prevents relative movement of the retainer element relative to the carrier.

[0020] A masking device can refer to a device for providing a mask that alters the coating process and the resulting coating on the surface of an eyeglass lens product. The masking device can be adapted to selectively arrange masking templates to vary the coverage of the coating applied to the surface of the eyeglass lens.

[0021] A masking template may be a template that defines one or more areas to which a coating is applied to an eyeglass lens product, and one or more other areas to which no coating is applied. The masking template may include multiple portions that prevent vapors used for coating application. The masking template may include one or more recesses that allow vapors used for coating to penetrate the masking template and cause coating on the surface of the eyeglass lens product in areas that may correspond to one or more recesses of the masking template.

[0022] Mounting slots can be pre-defined grooves in a carrier for mounting spectacle lens products. These mounting slots can be grooves formed in the carrier that are adapted to receive the spectacle lens product in a manner that exposes at least one surface of the spectacle lens product for a coating process. Each of the mounting slots may include a hole in the carrier onto which a substrate can be placed, allowing a coating to be applied to the surface through a hole in a substrate holder. The hole in the mounting slot may be adapted to support the spectacle lens product at an edge or rim while exposing a central area of ​​the spectacle lens product for a coating process.

[0023] Spectrum lens products can refer to finished spectrum lenses, semi-finished spectrum lenses, lens blanks, and / or substrates used to manufacture lens blanks or spectrum lenses, and in particular, can meet the requirements specified in EN ISO 13666:2012. The substrate of a spectrum lens can be an optical substrate used to manufacture spectrum lenses from that substrate. Spectrum lens products can have suitable dimensions for manufacturing one spectrum lens from one spectrum lens product. Spectrum lens products can form precursors to optical products. Alternatively, spectrum lens products can be (uncut) nearly finished optical products that will be finished after the coating process. "Multiple substrates for spectrum lenses" can refer to multiple substrates, each intended for use in manufacturing one spectrum lens based on the respective substrate. Throughout this disclosure, unless otherwise expressly stated, the term "spectacle lens product" can generally refer to the substrate of a spectrum lens.

[0024] The support frame can be a mechanical element for supporting the masking template and optionally the retainer element. The support frame can be adapted to mount the retainer element and, possibly, the spectacle lens product mounted within the retainer element, to the carrier. The support frame can be adapted to allow the masking template to rotate or move relative to the spectacle lens product. "Rotation" means that the masking template can be moved by a predetermined angle (e.g., between 100° and 300°), optionally by 180°. The axis of rotation can extend tangentially to the dome-shaped surface of the carrier and / or in the plane formed by the retainer element and / or the support frame. The axis of rotation can extend perpendicularly to an axis extending through the evaporation source of the coating apparatus and the center of the retainer element associated with the support frame.

[0025] The advantage provided by this disclosure is that a masking template can be brought to and removed from the masking position within the vacuum chamber of the coating apparatus without disrupting the vacuum in the chamber. This allows for the application of a spatially structured reflective coating to eyeglass lens products without the disadvantages exhibited by conventional techniques. In particular, the advantage provided by this disclosure is that it eliminates the need to remove the eyeglass lens product from the vacuum to change the position of the masking template. Therefore, a vacuum can be maintained during one or more coating processes with the masking template positioned in the masking position and during one or more coating processes with the masking template positioned in the concealed position. This allows for increased efficiency in the coating process and reduced time required to complete the coating process. Furthermore, this results in higher energy efficiency because it eliminates the need for venting and re-vacuuming the vacuum chamber.

[0026] Furthermore, this disclosure offers the advantage of eliminating the need to apply and remove the masking layer from eyeglass lens products. This allows for reduced manual work during the masking process and avoids the risk of damage to eyeglass lens products due to mechanical and / or chemical treatments. Additionally, this disclosure provides the advantage that the masking process does not require the use of chemicals, thus enabling a more eco-friendly masking process.

[0027] Furthermore, the advantage provided by this disclosure is that a separate masking template can be provided for each spectacle lens product, and that the masking template can be individually movable for each spectacle lens product. This allows spectacle lens products that require coating application, and those that do not, to be combined in the coating apparatus.

[0028] Furthermore, this disclosure offers the advantage that the masking templates do not need to be stored in their concealed positions within the vacuum chamber, eliminating the need to sacrifice the coating area. Since the masking templates can be moved to their concealed positions by rotating them behind their respective spectacle lens products (i.e., to the side of the spectacle lens product facing away from the evaporation source), it is unnecessary to retain an area in the coating apparatus that could otherwise be used to coat other spectacle lens products. Consequently, the coating apparatus can be used more efficiently compared to masking techniques as described in EP 3 296 423 A1.

[0029] The masking device can be adapted such that, when the masking template is arranged in the masked position, it at least partially shields the spectacle lens product mounted in the retainer element relative to the vapor source of the coating apparatus, and that, when the masking device is arranged in the concealed position, it does not shield the spectacle lens product mounted in the retainer element relative to the vapor source of the coating apparatus. This provides the advantage that, when the masking template is arranged in the concealed position, the entire surface of the spectacle lens product can be coated, and when the masking template is arranged in the masked position, a spatially selective coating is applied according to the masking template.

[0030] The shielding device may have a geometry that allows the shielding template to move around the retainer element when the support frame rotates about the axis of rotation. In other words, the shielding template and the retainer element may be adapted such that the retainer element and / or the spectacle lens product mounted in the retainer element do not obstruct the shielding template when the support frame rotates about the axis of rotation.

[0031] The support frame can be annular and can span the area used to receive the retainer element and the spectacle lens product held by the retainer element. The support frame can be adapted to attach to the mounting slot of the carrier.

[0032] The retainer element can be annular and is adapted to be mounted in an area spanned by the support frame. Furthermore, the annular retainer element can have a circular cover area, wherein the shielding template can have a shape based on a spherical cutout and / or spherical segment. The circular cover area can refer to a circular shape in a plane, within which the retainer element can be received by the carrier. The retainer element can have a flat profile in a direction perpendicular to the extension of the mounting slot of the carrier. The shape of the shielding template based on a spherical cutout and / or spherical segment is well-suited for allowing the shielding template to move around the annular retainer element when the support frame rotates, while still maintaining a limited space required for rotational movement.

[0033] The masking template may have one or more recesses that, when positioned in the masking position, provide a space-dependent covering for the spectacle lens product mounted in the retainer element. This allows for the application of a space-selective coating to the spectacle lens product according to the one or more recesses without the need for the application of chemicals or the venting and re-vacuuming of the vacuum chamber.

[0034] The support frame can be rotated about a rotation axis by applying a magnetic force to the support frame and / or the shielding template. This allows the support frame and the shielding template to be rotated without direct mechanical contact. Furthermore, this allows the use of magnetic generators, such as permanent magnets, that can be placed inside the vacuum chamber for other purposes.

[0035] The carrier can be adapted as a cap-shaped carrier for carrying multiple shielding devices to allow coating of multiple spectacle lens products, wherein each of the multiple spectacle lens products can be mounted in one of these shielding devices. This allows for the application of a spatially selective reflective coating to several spectacle lens products during the coating process (i.e., during a process between evacuating and venting the vacuum chamber).

[0036] The step of arranging an eyeglass lens product in a vacuum chamber according to the method of this disclosure may include mounting the eyeglass lens product in a retainer element, wherein the retainer element is at least partially surrounded by a support frame mounted on a carrier of the coating apparatus, and wherein the support frame is rotatable about a rotation axis. Furthermore, the step of arranging the eyeglass lens product in a vacuum chamber may include arranging the retainer element and the support frame on the carrier of the coating apparatus and arranging the carrier in the vacuum chamber of the coating apparatus. The vacuum chamber may be kept evacuated during the application of the first coating and the application of the second coating, and between the application of the first coating and the application of the second coating.

[0037] Other technical features will be apparent to those skilled in the art from the following figures, description and claims.

[0038] Those skilled in the art will understand that the features described above, as well as those in the following description and accompanying drawings, are not only disclosed in the explicitly disclosed embodiments and combinations, but also include other technically feasible combinations and isolated features. Hereinafter, several alternative embodiments and specific examples are described with reference to the accompanying drawings, which are used to illustrate this disclosure and not to limit it to the described embodiments. Attached Figure Description

[0039] Other alternative embodiments will now be described with reference to the accompanying drawings.

[0040] In the attached diagram: Figure 1A and Figure 1B A shielding device according to an alternative embodiment is schematically depicted.

[0041] Figure 2 A coating apparatus according to an optional embodiment is illustrated schematically.

[0042] Figure 3A A masking template according to an optional embodiment is illustrated schematically.

[0043] Figure 3B A retainer element according to an optional embodiment is schematically presented.

[0044] Figure 3C An eyeglass lens product according to an optional embodiment is illustrated schematically.

[0045] Figure 4 A method 400 for manufacturing eyeglass lens products according to an optional embodiment is shown.

[0046] In the accompanying drawings, corresponding or similar features in different drawings use the same reference numerals. Detailed Implementation

[0047] Figure 1A and Figure 1B A masking device 100 according to an optional embodiment is schematically depicted for use in coating apparatus 118 (see...) Figure 2 The shielding device 100 includes: a retainer element 104 for holding the spectacle lens product 102 relative to a carrier 106 of the coating device 118; and a support frame 108 mountable on or to the carrier of the coating device 118, wherein when mounted on the carrier 106, the support frame 108 is rotatable about a rotation axis 114, and wherein when mounted on the carrier 106, the support frame at least partially surrounds the retainer element 104. The shielding device 100 further includes a shielding template 110 mounted on the support frame 108 such that rotation of the support frame 108 about the rotation axis 114 allows the shielding template 110 to be moved from a shielding position 112 (e.g., ...) Figure 1B (As shown) Move to hidden position 116 (as shown) Figure 1A (as shown), or moved from a hidden position to a masking position. The vapor source 122 of the coating apparatus 118 can be arranged below the spectacle lens product 102. Accordingly, when the masking template 110 is arranged above the spectacle lens product 102, the masking template is arranged in the hidden position 116 because the masking template 110 does not affect the coating of the spectacle lens product 102 during the coating process. The masking device 100 is inserted into the mounting groove 124 of the carrier 106, wherein the size and / or shape of the support frame 108 can be adapted to the size and / or shape of the mounting groove 124.

[0048] Figure 1B This shows the support frame 108 after rotating from the hidden position 116 to the concealed position 112. Figure 1A The shielding device 100. In this shielding position 112, the shielding template 110 can affect the vapor supplied by the vapor source 122 below the spectacle lens product 102 on the front surface of the spectacle lens product 102. Figure 1A and Figure 1B The masking template 110 may have one or more recesses 132 (see the lower surface of the template). Figure 3A( ), to provide a space-dependent coating on the front surface of the eyeglass lens product 102, wherein the space-dependent coating may be determined by the size and shape of one or more recesses 132 of the masking template 110.

[0049] The shielding device 100 may be adapted such that when the shielding template 110 is arranged in the shielding position 112, the shielding template is positioned relative to the vapor source 122 of the coating device 118 (see [link]). Figure 2 The shielding device 100 at least partially obscures the spectacle lens product 102 mounted in the retainer element 104, and such that when the shielding device 100 is arranged in the concealed position 116, the shielding device does not obscure the spectacle lens product 102 mounted in the retainer element 104 relative to the vapor source 122 of the coating device 118.

[0050] The masking template 110 may have a geometry that allows the masking template 110 to move around the retainer element 104 when the support frame 108 rotates about the axis of rotation 114.

[0051] The support frame 108 may be annular and may span the area for receiving the retainer element 104 and the spectacle lens product 102 held by the retainer element 104.

[0052] The retainer element 104 may be annular and is adapted to be installed in the area spanned by the support frame 108.

[0053] The annular retainer element 104 may have a circular footprint, and the masking template 110 may have a shape based on a spherical cutout and / or a spherical segment.

[0054] The masking template 110 may have one or more recesses 132 that provide a space-dependent cover for the spectacle lens product 102 mounted in the retainer element 104 when the masking template 110 is arranged in the masking position 112.

[0055] The support frame 108 can be rotated about the rotation axis 114 by applying a magnetic force to the support frame 108 and / or the masking template 110.

[0056] Figure 2 A coating apparatus 118 according to an optional embodiment is schematically shown. The coating apparatus 118 is adapted to coat one or more spectacle lens products 102 by vapor deposition. The coating apparatus 118 includes a vacuum chamber 120 including a vapor source 122 for at least partially coating one or more spectacle lens products 102 by vapor deposition. The coating apparatus 118 further includes a carrier 106 having a plurality of mounting slots 124. Furthermore, the coating apparatus 118 further includes a plurality of shielding devices 100, which may optionally correspond to... Figure 1A and Figure 1B In the illustrated embodiment, one of the plurality of masking devices 100 is mounted in each of the plurality of mounting slots 124 of the carrier 106. Additionally, the coating apparatus 118 further includes one or more force generators 130 for applying forces to one or more support frames 108 of the plurality of masking devices 100 to rotate the one or more support frames 108 about their respective axes of rotation 114, thereby switching the masking template 110 of the one or more masking devices 100 from a hidden position 116 to a masked position 112, or from a masked position to a hidden position.

[0057] The coating apparatus 118 can be adapted to rotate one or more support frames 108 about their respective axes of rotation 114 within a vacuum chamber 120.

[0058] The coating device 118 can be adapted as a cap-shaped carrier 106 for carrying a plurality of shielding devices 100 to allow coating of a plurality of spectacle lens products 102, wherein each of the plurality of spectacle lens products 102 can be mounted in one of the shielding devices 100.

[0059] The coating apparatus 118 can be adapted to coat one or more eyeglass lens products 102 by vapor deposition.

[0060] in addition, Figure 2 The coating apparatus 118 shown further illustrates a vapor source 122 adapted to provide vapor of one or more materials that will form a coating to be applied to the surface of the spectacle lens product 102 facing the vapor source 122.

[0061] Furthermore, the coating apparatus 118 includes an opening 126 for evacuating the vacuum chamber 120 and a drive unit 128 for rotating the support member 106 about a vertical axis. Additionally, the coating apparatus 118 includes a force generator 130 for rotating the support frames 108 about their respective axes of rotation 114 to move the respective masking templates 110 from their concealed position 116 to a masked position 112, or from a masked position to a concealed position. The force generator 130 may include one or more magnetic elements, including one or more permanent magnets and / or electromagnets, to apply magnetic force to the support frames 108 and / or the masking templates 110, thereby rotating the support frames 108 and the masking templates 110 from the concealed position 116 to the masked position 112, and / or from the masked position to the concealed position.

[0062] Figure 3AA masking template 110 according to an alternative embodiment is schematically shown. The masking template 110 has a geometry corresponding to a hemisphere or dome, which allows the masking template 110 to surround the annular retainer element 104 (e.g., as shown in the diagram). Figure 3B The rotation is presented. The masking template 110 includes a star-shaped recess 132 that allows the application of a space-dependent coating in a star shape to the eyeglass lens product 102 partially covered by the masking template 110.

[0063] Figure 3B A retainer element 104 according to an alternative embodiment is schematically shown. The retainer element 104 is annular and adapted to receive the spectacle lens product 102 and secure the spectacle lens product 102 relative to the carrier 106 of the coating apparatus 118. The retainer element 104 may be adapted to fix the spectacle lens product 102 relative to the carrier 106. The retainer element 104 may be adapted to hold the spectacle lens product 102 fixed when the support frame 108 rotates about its axis of rotation 114, so as to move the shielding template 110 from a concealed position 116 to a concealed position 112, or from a concealed position to a concealed position. However, alternatively, the retainer element 104 may also be adapted to allow the retainer element 104 to rotate about the axis of rotation 114. In this case, to rotate the retainer element 104, a different force generator and / or the same force generator 130 used to rotate the support frame 108 may be used.

[0064] Figure 3C The diagram schematically illustrates a space-dependent reflective coating on the front surface of an eyeglass lens product 102, wherein the space-dependent reflective coating has a star-shaped form. This space-dependent coating can be applied using, as shown in the reference... Figure 1A and Figure 1B The described shielding device 100 and such Figure 3A Apply the masking template as presented.

[0065] refer to Figure 4 The present invention describes a method 400 for manufacturing an eyeglass lens product 102 according to an optional embodiment.

[0066] In method step 402, method 400 arranges the spectacle lens product 102, mounted on the carrier 106, in a vacuum chamber 120 and evacuates the vacuum chamber 120. Method step 402 may include mounting the spectacle lens product 102 in a retainer element 104, wherein the retainer element 104 may be at least partially surrounded by a support frame 108 mounted on the carrier 106 of the coating apparatus 118, and wherein the support frame 108 is rotatable about a rotation axis 114. Furthermore, method step 402 may include arranging the retainer element 104 and the support frame 108 on the carrier 106 of the coating apparatus 118, and arranging the carrier 106 in the vacuum chamber 120 of the coating apparatus 118.

[0067] In method step 404, when the masking template 110 is installed in the hidden position 116, method 400 applies a first coating to the surface of the eyeglass lens product 102 by vapor deposition.

[0068] The step of arranging the spectacle lens product 102 402 in the vacuum chamber 120 includes mounting the spectacle lens product 102 in a retainer element 104, wherein the retainer element 104 is at least partially surrounded by a support frame 108 mounted on a carrier 106 of the coating apparatus 118, and wherein the support frame 108 is rotatable about a rotation axis 114. The step of arranging the spectacle lens product 102 402 in the vacuum chamber 120 further includes: providing a masking template 110 mounted on the support frame; arranging the retainer element 104 and the support frame 108 on the carrier 106 of the coating apparatus 118; and arranging the carrier 106 in the vacuum chamber 120 of the coating apparatus 118.

[0069] In method step 406, method 400 moves the masking template to the masking position 112, and applies the second coating to the surface of the eyeglass lens product 102 when the masking template 110 is in the masking position 112.

[0070] The vacuum chamber 120 of the coating apparatus 118 can be kept evacuated during the application of the first coating and the application of the second coating, as well as between the application of the first coating and the application of the second coating.

[0071] List of reference numerals 100 shielding devices 102 Eyeglass Lens Products 104 Retainer Element 106 Bearing Components 108 Supporting Frame 110 Masking Template 112 Shielding location 114 Rotation axis 116 Hidden Location 118 Coating apparatus 120 vacuum chamber 122 Steam Source 124 mounting slots 126 Opening 128 drive units 130 Force Generator 132 recess 400 methods 402 Method and Steps 404 Method and Steps 406 Method and Steps.

Claims

1. A shielding device (100) for shielding an eyeglass lens product (102) in a coating apparatus (118), the shielding device (100) comprising: - A retainer element (104) for holding the spectacle lens product (102) relative to the carrier (106) of the coating device (118). The shielding device (100) is characterized in that it further comprises: - A support frame (108) that can be mounted on the carrier (106) of the coating apparatus (118) or on the carrier of the coating apparatus, wherein when the support frame (108) is mounted on the carrier (106), the support frame is rotatable about a rotation axis (114), and wherein when the support frame (108) is mounted on the carrier (106), the support frame at least partially surrounds the retainer element (104). - A masking template (110) is mounted on the support frame (108) such that by rotating the support frame (108) about the axis of rotation (114), the masking template (110) can be moved from a masking position (112) to a hidden position (116), or from a hidden position to a masking position.

2. The screening device (100) according to claim 1, wherein The shielding device (100) is adapted such that when the shielding template (110) is arranged in the shielding position (112), the shielding template at least partially shields the spectacle lens product (102) installed in the retainer element (104) relative to the vapor source (122) of the coating device (118), and such that when the shielding device (100) is arranged in the concealed position (116), the shielding device does not shield the spectacle lens product (102) installed in the retainer element (104) relative to the vapor source (122) of the coating device (118).

3. The shielding device (100) as described in claim 1 or 2, wherein, The masking template (110) has a geometry that allows the masking template (110) to move around the retainer element (104) when the support frame (108) is rotated about the axis of rotation (114).

4. The shielding device (100) as described in claim 1 or 2, wherein, The support frame (108) is annular and spans the area for receiving the retainer element (104) and the spectacle lens product (102) held by the retainer element (104).

5. The shielding device (100) as claimed in claim 4, wherein, The retainer element (104) is annular and is adapted to be installed in the area spanned by the support frame (108).

6. The shielding device (100) as claimed in claim 5, wherein, The annular retainer element (104) has a circular covering area, and wherein the masking template (110) has a shape based on a spherical cutout and / or a spherical segment.

7. The shielding device (100) as claimed in claim 1 or 2, wherein, The shielding template (110) has one or more recesses (132) that, when the shielding template (110) is arranged in the shielding position (112), provide a space-dependent cover for the spectacle lens product (102) mounted in the retainer element (104).

8. The shielding device (100) as claimed in claim 1 or 2, wherein, By applying magnetic force to the support frame (108) and / or to the shielding template (110), the support frame (108) can be rotated about the rotation axis (114).

9. The shielding device (100) as claimed in claim 1 or 2, wherein, The coating apparatus (118) is adapted to coat one or more spectacle lens products (102) by vapor deposition.

10. A coating apparatus (118) for coating one or more spectacle lens products (102) by vapor deposition, the coating apparatus (118) comprising: - A vacuum chamber (120) comprising a vapor source (122) for at least partially coating the one or more spectacle lens products (102) by vapor deposition; and - Support member (106) having multiple mounting slots (124); The coating apparatus (118) is characterized in that it further comprises: - A plurality of shielding devices (100) according to any one of claims 1 to 9, wherein one of the plurality of shielding devices (100) is mounted in each of the plurality of mounting slots (124) of the carrier (106); and - One or more force generators (130) for applying force to one or more support frames (108) of the plurality of shielding devices (100) to rotate the one or more support frames (108) about their respective axes of rotation (114) to switch the shielding template (110) of the one or more shielding devices (100) from a hidden position (116) to a shielded position (112), or from a shielded position to a hidden position.

11. The coating apparatus (118) as claimed in claim 10, wherein, The coating apparatus (118) is adapted to rotate the one or more support frames (108) about their respective axes of rotation (114) within a vacuum chamber (120).

12. The coating apparatus (118) as claimed in claim 10 or 11, wherein, The carrier (106) is adapted to be a round cap-shaped carrier (106) for carrying a plurality of shielding devices (100) to allow coating of a plurality of spectacle lens products (102), wherein each of the plurality of spectacle lens products (102) is mounted in one of the shielding devices (100).

13. A method (400) for manufacturing spectacle lens products (102), characterized in that, The method (400) includes: - Arranging (402) the spectacle lens product (102) mounted on the carrier (106) in the vacuum chamber (120) and evacuating the vacuum chamber (120), wherein the step of arranging (402) the spectacle lens product (102) in the vacuum chamber (120) includes: - The spectacle lens product (102) is installed in a retainer element (104), wherein the retainer element (104) is at least partially surrounded by a support frame (108) mounted on a carrier (106) of the coating device (118), and wherein the support frame (108) is rotatable about a rotation axis (114). - Provide a shielding template (110) to be installed on the support frame; - The retainer element (104) and the support frame (108) are arranged on the carrier (106) of the coating device (118), and - The carrier (106) is arranged in the vacuum chamber (120) of the coating apparatus (118); - When the masking template (110) is installed in the concealed position (116), a first coating is applied (404) to the surface of the eyeglass lens product (102) by vapor deposition; and - By rotating the support frame (108) about the axis of rotation (114), the shielding template (110) is moved (406) relative to the eyeglass lens product to the shielding position (112), and; - When the masking template (110) is in the masking position (112), the second coating is applied to the surface of the eyeglass lens product (102).

14. The method (400) as claimed in claim 13, wherein, The vacuum chamber (120) is kept evacuated during the application of the first coating and the application of the second coating, as well as between the application of the first coating and the application of the second coating.

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