Method and lens holder for tinting spectacle lens

Abstract

To provide a method for tinting a spectacle lens.SOLUTION: The present invention provides a method comprising the steps for selectively performing surface treatment onto a preselected part (62) of a surface of a spectacle lens (60) and providing a tinting solution (70) to the spectacle lens. Further, a lens holder for tinting the spectacle lens (60) is provided, which comprises a reception unit suitable for holding the spectacle lens (60) in a predefined position and a masking unit suitable for masking a part (63) of a surface of the spectacle lens when held by the reception unit in a predefined position.SELECTED DRAWING: Figure 3B

Description

[Technical field]

[0001] The present invention relates to a method for tinting a spectacle lens. Method for tinting eyeglass lenses by selective treatment, and tinted lenses obtained therefrom The present invention also relates to a spectacle lens and a lens holder used in the method. The present invention relates to a lens holder, a corresponding computer program, and a computer readable device. The present invention is directed to a coloring system having the above-mentioned data, as well as a kit for carrying out the above-mentioned method. [Background technology]

[0002] Tinting of eyeglass lenses is required for many reasons, including medical and safety reasons. Due to surface properties brought about by the surface material itself or by a coating applied onto the surface Thus, simple surface printing often does not meet the required quality, especially desirable resolution and durability. However, coloring having the above-mentioned properties has not been achieved.

[0003] Furthermore, patterns on eyeglass lenses that represent marks, numbers, letters, simple shapes, etc. There is also a need to effectively tint only selected portions of a surface. For this reason, lenses with a solid color are most commonly used. Partial or gradient coloring, which offers further advantages, is becoming more and more important.

[0004] Conventionally, the selective tinting of eyeglass lenses has so far been achieved by applying dye in a bath. Cover the parts of the lens surface that are not desired to be tinted by dipping the lens By designing and applying a masking means such as an adhesive tape or thin film to However, this method has drawbacks in terms of reproducibility and uniformity. do.

[0005] Specifically, in the conventional method using adhesive tape, when the lens is immersed in the coloring bath, Especially when tinting the curved surfaces (both convex and concave) of spectacle lenses, This has the disadvantage of undesirable infiltration of material beneath the masked areas. The adhesive is applied to the lens by hand, so it is difficult to apply it to the curved surface of the eyeglass lens. This poor applicability of the conventional method is due to wrinkles that form when the tape is applied onto a surface. Furthermore, the tape, which is almost flat in shape, is applied to the curved surface of the eyeglass lens. Since it must be applied on the surface, wrinkles easily form on the edges of the tape. Furthermore, the larger the portion of the eyeglass lens that needs to be masked, the more tape and The adhesion between the eyeglass lenses is poor. These wrinkles can lead to water infiltration and This results in uneven coloring with unclear edges of the pattern or ultimately in color stains. Specifically, when the eyeglass lens has a large curvature, the conventional method It has been difficult to obtain desirable colorations of good quality using

[0006] Furthermore, conventional selective coloring methods can only provide limited coloring patterns. For example, the most commonly used method to achieve colored patterns is the die-cut process. This process involves pressing the tape on a die press to prepare it into the desired shape. Dies are used to cut the adhesive tape at the same time. However, the die cutting process is It does not allow the realization of patterns with large size or complex patterns, because During the pulling or tape application step, the small size of the tape can be easily damaged. In addition, small masking tapes tend to be more susceptible to color infiltration. Furthermore, the step of applying the die-cut tape to the eyeglass lens may be performed manually. This is done in industry to align the tape to multiple lenses in the exact same position. The task of measuring is not easily repeatable with high accuracy by using hands. Therefore, it is possible to realize a tape having a shape that is not connected to the lens edge (side). Therefore, the conventional methods are inefficient and, in some cases, selective. The present invention is suitable for coloring simple, complex and / or small patterns on eyeglass lenses. No. 4,991,849, which is directed to incorporating slits into golf glasses The book mentions masking the slits when shading golf glasses. However, this also has the same problems as mentioned above. Moreover, it does not have any concrete It does not provide a method for skinning.

[0007] Finally, tape tinting, in most cases, begins with applying it to individual eyeglass lenses. Made of metal for realization of individual tapes to be applied and subsequently cut out by die The tape must be prepared in the same number as the number of eyeglass lenses to be tinted. This is a tedious process and requires a high degree of manual effort, as a large number of It requires labor and operator dexterity to align the tape to the lens. In order to prevent this, the adhesive tape must be discarded after use. Produce a single or just a few prototypes of tinted lenses in stages To do this, metal molds must be prefabricated, which increases the costs and time involved. There is a gap.

[0008] To improve the tinting of ophthalmic lenses, U.S. Pat. No. 9,677,222 B2 discloses: The use of two different surface materials allows for a uniform distribution of the surface area between different parts of the lens substrate. A method for selectively coloring a substrate is disclosed, in which a first material is formed on the substrate. A substrate is used having a first surface portion and a second surface portion formed of a second material. In this case, the first material and the second material are different. Thus, the wire penetrates only into the first surface portion having the first material, but penetrates into the second surface portion having the second material. It does not penetrate into the surface of the material. This uses the difference between the freezing or softening temperatures of the material. However, there is a further step of applying the film to individual eyeglass lenses having different surfaces. Delicate adjustment of the tip and heating temperature is required to improve the coloring process. Furthermore, there are two main reasons for the film application process: Due to the insufficient difference between the properties of the surface materials, it is difficult to obtain high quality coloring. Sometimes it’s not easy.

[0009] Alternatively, an ink receptor layer may be applied to the lens substrate in the form of a thin film. Japanese Patent No. 3075403 describes an inkjet printer, a heat treatment, and finally by rinsing and finally by applying a water-soluble polymer coating. A cured coating is applied to the eyeglass lens, and an aqueous solution of an ink containing a disperse dye is applied onto the cured coating. The present invention describes a method for producing tinted plastic lenses by using a WO 2006 / 079564A1 describes a porous ink receptor. Coating the substrate of an optical lens with a layer of ink receptor material capable of forming a film. and evaporating the solvent present in the ink receptor material to form a porous film. Then, the ink solution is applied onto the porous film in such a manner that the ink solution is absorbed into the film. The ink solution is applied using an ink jet device in a substrate, and the substrate is colored as desired. Heating the optical lens until the ink receptor film is removed. Therefore, in these cases, There is a need to apply a sublayer onto a lens substrate, particularly one that is free of haze. Clear coatings and thin film coatings are difficult to obtain, and application and adaptation of auxiliary layers is difficult. This can have a detrimental effect on the lens properties. The processing steps can also be tedious and inefficient.

[0010] EP 3266598 A1 is considered to be the closest prior art. and discloses a process for the manufacture of optical eyeglasses. In order to remove the surface coating in the non-treated zone, an area of ​​the optical eyeglasses is The pattern to be drawn on the eyeglasses is processed by a laser beam. Programming the movement of the laser beam to generate elements of a pattern or Then, to form a pattern with the ink, for example, an inkjet printer can be used. By dot printing, ink is deposited in the non-treated zones. In order to reach a layer of the ophthalmic lens having properties that allow the retention of the ink, the ink The surface coating that prevents adhesion of the coating to the substrate is locally removed. The coating is applied to optical eyeglasses, which require laser beam treatment and Damage is likely to occur due to poor ink adhesion. Summary of the Invention [Problem to be solved by the invention]

[0011] Thus, it is possible to produce desirable colored patterns in an industrially effective and simple manner and with high quality. There is a need for new selective coloring methods that can provide a range of colors.

[0012] Improved method for selectively tinting eyeglass lenses, improved method obtainable by the method It is an object of the present invention to provide a tinted lens, an improved lens holder, and an improved tinting device. In addition to this, a lens holder, a corresponding computer program, Also provided are coloring systems having computer data and kits for carrying out the methods. It can be done.

[0013] The inventors have developed a relatively sophisticated methodology that is relatively easily applicable and reproducible. Therefore, on the one hand, the adhesive tape adhesive is used for coloring the inkjet printer. In comparison to color methods, the present invention provides high quality coloring with cost-effectiveness and flexibility. On the other hand, it provides a spectacle lens that can be colored or further processed by providing an auxiliary thin film layer. In comparison with the method using It allows for coloring with high quality and in an easily applicable and reproducible manner. do. [Means for solving the problem]

[0014] Over the years, it has been used in a variety of applications such as surface treatment, oxidation, polymer etching, etc. Plasma treatment is used to treat a wide range of conditions, depending on the type of material and the plasma conditions. Depending on the conditions or type of plasma used, different effects can be induced. For example, CN No. 105204180 describes a method for depositing a plasma layer on the surface of an eyeglass lens. In order to prevent this, plasma treatment is applied to eyeglass lenses. It does not provide any practical application of the law.

[0015] Tinting eyeglass lenses by intentionally adjusting the surface properties of the lenses Based on the concept of using plasma treatment to achieve this, the inventors have addressed the shortcomings of the prior art. The present invention has been developed to address these issues.

[0016] According to a first aspect of the present invention, a method for selectively tinting eyeglass lenses is provided. The method includes (i) selectively plasma treating preselected portions of a surface of an eyeglass lens. and (ii) at least a surface of the spectacle lens that has not been treated with plasma. and applying a coloring solution to the portion.

[0017] According to a second aspect of the invention, a lens holder suitable for tinting eyeglass lenses is provided. This is a lens suitable for holding a spectacle lens in a predefined position. reception unit and held by the reception unit at a predefined position A masking unit suitable for masking a portion of the surface of an eyeglass lens when the eyeglass lens is And, it has.

[0018] A third aspect of the present invention is a method for manufacturing a spectacle lens held by a lens holder during plasma processing. In a second embodiment, a method for selectively tinting a spectacle lens suitable for covering a portion of the surface of the lens is provided. The lens holder is used.

[0019] According to a fourth aspect, there is provided a system or apparatus for coloring, the system comprising: The system or device comprises a lens holder according to the second aspect, a device for plasma treatment, and a coloring solution. The coloring tank has a coloring tank having a coloring tank.

[0020] The fifth and sixth aspects of the present invention provide a method for producing a program for a computer when the program is executed by a computer. A method according to the present invention comprising: and a computer program which, when executed by a computer, causes the computer to carry out the invention. A computer readable data set having instructions for carrying out a method according to the first aspect of the present invention. Specifically, the computer program provides a The information may be stored on a computer-readable non-transitory data carrier. Any of the above method steps are preferably carried out using a computer program. By using a computer or computer network Specifically, the computer program can be used to operate a plasma processing device or the like. Commands can be sent to devices suitable for processing the Zuma, and the devices will process the Zuma accordingly. For example, the device may perform plasma processing on a preselected portion of an eyeglass lens. The plasma processing device can be programmed to perform the plasma processing. The data program commands a suitable device for providing the coloring solution, such as a coloring bath or coloring chamber. A command can be transmitted and the device applies a color solution onto the eyeglass lenses according to the command. is doing.

[0021] Furthermore, a seventh aspect of the present invention is a lens holder according to the second aspect of the present invention and and instructions for use of the lens holder according to the method of the first aspect. There are.

[0022] The basic concept of the present invention is that the surface of the eyeglass lens that has not undergone plasma treatment is colored. While the preselected portions are exposed to the plasma treatment, they are colored in a subsequent coloring step. Selectively plasma-treating preselected portions of the surface of an eyeglass lens to prevent the lens from being discolored. The present invention provides a method for tinting a spectacle lens having a surface by performing a coloring process using a coloring agent. The inventors have found that plasma treatment modifies the surface properties of eyeglass lenses. The plasma treatment allows the exposed surface of the eyeglass lens to be coated with a colored solution. The lens is modified in such a way that the coloring required for the spectacle lens is prevented. A preselected surface of the spectacle lens is provided such that the surface properties are not substantially altered or damaged. Spectacle lenses that were not treated with plasma, modifying only a very thin area of ​​the surface The present invention provides for highly selective application of coloring solutions to surfaces.

[0023] Throughout this specification the following definitions apply:

[0024] Spectacle lenses are ophthalmic lenses that are worn in front of the eye without contact with the eye. lens (DIN ISO 13666:2019, section 3.5.2), in which Ophthalmic lenses are used to measure, correct, and / or protect the eye, or to change its appearance. The lenses are intended to be used to change the :2019, Section 3.5.1). A non-limiting example of an eyeglass lens is a segmented as well as single or multifocal lenses, which may or may not be used to correct or preserve vision. Corrective or non-corrective eyeglass lenses, including other elements used to protect, or improve Large lenses and protective lenses, or in glasses, glasses, goggles, and helmets In particular, spectacle lenses are used to protect the eyes and / or or lenses designed to fit into eyeglass frames to correct vision. and (e.g. sunglasses, sports-specific eyeglasses, or filters that filter out specific wavelengths) Non-corrective or corrective lenses (also called plano or afocal lenses, such as those for correcting vision) Corrective lenses can be monofocal, bifocal, trifocal, or progressive multifocal. Therefore, in general, in the context of the present invention, the term "lens" or "multiple The term "lens" refers to any of the spectacle lenses described above.

[0025] The eyeglass lens of the present invention is preferably a "eyeglass lens substrate." The term "substrate" refers to a piece of optical material used in the manufacturing process of eyeglass lenses; In other words, it means a precursor of the finished eyeglass lens. A suitable precursor of a lens is, for example, a semi-finished lens blank, in which case In this case, the term "semi-finished lens blank" refers to a lens blank that is used to manufacture eyeglass lenses. means a piece of optical material with one optically finished surface (DIN IS O 13666:2019, section 3.8.1). In any case, The eyeglass lens substrates used in the present invention may be used in the methods described herein. does not have any coatings such as AR (anti-reflective) or HC (hard coat) coatings used The substrate has at least one surface.

[0026] The term "lens material" means the material used to manufacture eyeglasses. The spectacle lens may comprise or consist of a lens material. The term "surface" or "spectacle lens surface" refers to a surface that is in direct contact with the environment. This refers to any layer of a three-dimensional spectacle lens that is located at the surface. The surface is considered as its boundary. The surfaces of the eyeglass lens substrate include its front surface, i.e., the front face, its side surface, i.e., the edge surface, , as well as a rear surface, or back surface.

[0027] The term "masking" refers to the covering of a portion of the surface of an eyeglass lens and the As a result, the masking of the surface of the eyeglass lens from contact with other substances or application of treatments. This means protecting the part.

[0028] The term "demasking" refers to the process of removing or removing a cover or material from the surface of an eyeglass lens. is removed, thereby preventing exposure of the previously masked area to other substances or processes. This means that it is possible to reacquire

[0029] The term "cover" means to cover, on or over the subject matter. It also means to place or arrange something around it.

[0030] The term "preselected portion" refers to a portion of a spectacle lens that is determined not to be tinted. The selection is made prior to applying the method. There can be at least one preselected portion in the

[0031] The term "part (of the surface of a spectacle lens)" refers to a separate or distinct whole ( "At least a portion (of the surface of the eyeglass lens)" The term "" may inform of a portion or a division of a whole and / or the whole.

[0032] The term "tinting" refers to the process of providing tint to the surface of an eyeglass lens. Tinted eyeglass lenses, for example, reduce the light spectrum perceptible by humans (380–700 nm). 80nm), and / or NIR (780-3000nm), UV-A (315-3 80 nm), and other spectral ranges such as the UV-B (280-315 nm) range. At least a portion of the electromagnetic spectrum, such as , a spectacle lens that is attenuated due to the addition of additional material. The amount of attenuation can be, for example, , may be between 6 and 99%. Cases of attenuation within the light spectrum that are perceptible by humans In this case, this is, for example, a DI of 1 to 94% in the colored lens area. N Provides luminous transmittance as defined in EN ISO 8930-3:2013 The luminous transmittance could be further increased by subsequent application of a coating such as an AR or HC coating. Conventionally, coloring is achieved by immersing the substrate in a color bath, i.e., a liquid dye solution, or The colored material may exhibit a homogeneous coloration. i.e., does the colored area exhibit the same degree of transmission throughout the colored area? Alternatively, the colored substrate may have a color gradient, i.e., a gradual change in transparency within the colored area. It can also show changes in the degree of overshoot.

[0033] The term "tint solution" refers to a liquid having a tint configured to tint a spectacle lens. The coloring solution is to be understood as a body that causes the lens to appear in a particular color or has dyes, which are colored substances used to change the color of eyeglass lenses. and optionally, swelling agents, mitigating solutions, surfactants, and / or buffers. The coloring solution may be converted to a coloring vapor, if desired. The term refers to a colored solution in which the primary solvent is water.

[0034] The term "selective tinting" refers to a type of tinting that is applied to specific desired portions of the surface of a spectacle lens. Thus, for example, in the form of a pattern, a colored and colored In a similar vein, the term "selectively plasma-coated" refers to a surface that is not The terms "selective plasma treatment" and "selective plasma treatment" refer to the plasma treatment of eyeglass lenses. applied only to certain desired (preselected) portions of the surface of the minutes means that it is not treated by plasma.

[0035] The term "pattern" refers to any macroscopic element, e.g., a spectacle lens. Selectively (locally) colored parts of the spectacle lens, marks, gradients, numerical values, any Graphic representations of type such as graphic letters, dots, symbols, etc. It can be considered as a turn.

[0036] The term "gradient" specifically refers to the intensity of the lens tint across the surface of a spectacle lens. It is used to describe the distribution. Specifically, the term "gradient coloring" is used to describe the distribution of the first In a state where the intensity increases in one direction and decreases in the opposite direction, the spectacle lens Shading of the lens in a direction parallel to the lens surface, more specifically, coloring on the lens The term "boundary gradient coloring" is used to describe the gradually changing intensity of a line. The term refers to the gradient at the boundary between the tinted and non-tinted surfaces of an eyeglass lens. Used to describe colors.

[0037] The term "plasma" refers to a gas produced by exciting it in an electromagnetic or electric field. These are clusters of particles that contain equal numbers of positive ions and electrons, free radicals, and natural species. This is the point at which ionized matter is subjected to long-range electric and magnetic fields that govern its behavior. Plasma is a state of things that is highly conductive up to 1000 times the electrical conductivity of the charged particles, or ions. and / or electrons. Plasma is created by heating a neutral gas. Or it can be artificially generated by applying a strong electromagnetic field to it. The terms "plasma treatment" or "plasma treatment step" refer to a process that uses a plasma generating method. This means that the subject is treated in a plasma state using a gas. For example, the method of generation can be Without limitation, glow discharge plasma, capacitively coupled plasma (CCP), cascade plasma Low pressure discharges such as arc plasma sources, inductively coupled plasma (ICP), and wave heated plasma , or arc discharge, corona discharge, dielectric barrier discharge (DBD), capacitive discharge, atmospheric pressure glow discharge (APGD), piezoelectric direct discharge plasma, or in some cases ion gun (oxygen The gas may be at atmospheric pressure, such as argon, argon, etc.

[0038] The term "reception unit" means a device that receives and holds one or more lenses. The present invention defines a portion of a lens holder specifically configured to receive the lens. The present invention relates to a method for producing a desired color pattern on a desired portion of the surface of a spectacle lens. The receiving device is configured to hold the eyeglass lens at a predefined position. The application unit is adapted to be mounted on at least a portion of the surface of the eyeglass lens. This can have a subunit structured as an "annular attachment means", for example. This can be achieved by taking into account the individual shape and surface profile ( Curvature) around the top periphery and optionally the outer (edge) periphery of the lens. The subunits are annular in shape and configured to be attached to each other through the annular attachment. The reception unit is fitted with a predefined means for holding the lens in the selected position, preferably at least one However, any other suitable means for receiving and holding a lens may be used. The structure of the lens can be defined as a reception unit. Or the term "retention means" refers to a side of a lens, such as a snap fit connection. (edge ​​shape, thickness) profile during plasma processing By this is meant any subunit capable of holding a lens.

[0039] The term "masking means" refers to a means for masking or covering at least a portion of the lens surface. A structure that masks or covers a part of the surface of the eyeglass lens and protects it from damage. Any structure suitable for protecting a portion of the surface of the eyeglasses during the lens treatment is called a masking means. For example, the masking means may be defined as: Any type of tape (e.g., adhesive tape) that can be placed and covered, Any material suitable for covering the surface of the Ganech lens (e.g., masking agent, die cast The cover may be a cover that is made of a thin material, a 3D printed cover, or a 3D printed cover. The term "masking unit" specifically refers to the lens holder according to the second aspect of the present invention. The masking unit is used to inform one of the components of the It is a component of the eyeglass lens holder and also serves to mask the surface of the eyeglass lens during plasma treatment. It's skinning.

[0040] The term "opening" in the present invention means an opening (i.e., a hole or aperture). As a result, the area of ​​the surface of the eyeglass lens that corresponds to the position of the opening in the lens holder is covered. The masking means or part of the masking unit that is not protected is notified. The shape of the opening is not limited and may be selected taking into consideration the desired coloring pattern. It is possible.

[0041] The term "spatial projection" refers to a portion that extends above the average surface of a masking unit and This allows the masking units of the lens holders to form a spatial gap therebetween. This is the hollow part of the knit.

[0042] As used in this specification and the appended claims, "a" and "an" mean The articles "," "the," and "the" are expressly and unambiguously limited to one reference. Includes plural references unless otherwise noted.

[0043] The method for tinting a spectacle lens having a surface according to the first aspect of the present invention comprises the steps of: (i) tinting a spectacle lens; (ii) selectively plasma treating preselected portions of a surface of the lens; At least in the part of the surface of the spectacle lens that has not been treated with plasma, and providing a liquid.

[0044] Selectively plasma treating preselected portions of a surface of an eyeglass lens. Thus, the plasma is applied only to preselected portions. A preselected portion of the surface of the spectacle lens is then tinted in a subsequent tinting step. On the other hand, the remaining surface of the spectacle lens that has not been treated with plasma The portion (i.e., the surface other than the preselected portion or portions) is to be colored. The preselected portion is not to be tinted, and the lens Select the desired tint pattern, keeping in mind that the rest of the surface of the eyeglasses will be tinted. The decision will be made based on the number of

[0045] Plasma treatment can be used to remove any coating such as AR (anti-reflective) or HC (hard coat) coatings. The surfaces of a spectacle lens having a surface, specifically the front, side and / or rear, In this case, the spectacle lens is preferably Preferably, it is a spectacle lens substrate. That is, plasma treatment is required and is not a conventional technique. Any additional lens that makes the process (e.g., laser beam processing) inefficient. It is performed on the surface of the spectacle lens that does not have a coating or lens layer. The reduction in the number of coating equipment reduces the investment required for the initial stage. The lens durability is improved due to the overall coating stack adhesion as well as reduced interfaces. It also improves durability.

[0046] The plasma treatment is preferably performed on a spectacle lens or on a surface of a spectacle lens. On the surface of the surface, preferably perpendicular to the center of the surface of the spectacle lens, It has been done.

[0047] In the present invention, a preselected portion of the surface treated by the plasma and a Thus, the plasma results in distinct properties between the portions of the surface that are not treated. The treatment steps are completed before the tint solution is applied to the eyeglass lenses, eliminating the need for A uniform coloring is produced by the penetration of the coloring solution under the masking means. There is no drawback of liquid seepage due to poor adhesion of the masking means. Selective tinting is achieved by the different properties of individual parts of the surface of a spectacle lens. Since the coloring quality generated in the coloring step is masked, the coloring quality is Compared to the prior art, which relies on the adhesion or quality of the means, the effect of masking itself (Rather, it will be affected by the plasma treatment conditions.)

[0048] In one embodiment, preselected portions of the surface of the eyeglass lens are selectively plasma treated. The step of treating includes treating the surface of the eyeglass lens other than the preselected portion prior to the plasma treatment. and applying a coloring solution to the eyeglass lens after the plasma treatment. demasking the masked portion of the surface of the eyeglass lens prior to providing; That is, the selective plasma treatment for the preselected portion is performed by masking the The eyeglass lens is then exposed to a plasma treatment at a preselected portion of the lens, such that the portion is protected during the plasma treatment. This is achieved by masking a portion of the surface of the The tip occurs after the plasma treatment and before the coloring solution is applied to the eyeglass lens. become.

[0049] In a further embodiment, a masking means can be used for masking. The masking means is adapted to cover a portion of the surface of the eyeglass lens during plasma treatment. and may be any structure suitable for protecting it from plasma processing. The covering means may be of any type that can be placed on and cover the lens surface. Tape (e.g., adhesive tape) and any suitable material for covering the lens surface (e.g., For example, the cover may be a masking agent, a die-cast cover, or a 3D printed cover. In this embodiment, the masking means is a masking material for the plasma treatment step. on one or more portions of the surface of the eyeglass lens other than preselected portions of the surface of the lens. The masking means is removed in a demasking step, and A tinting solution is then applied to the eyeglass lenses.

[0050] In one exemplary embodiment, the masking means is a lens hole according to the second aspect of the invention. The masking unit may be a filter having a reception unit and a masking unit. do.

[0051] In this respect, the present invention relates to a method for producing a masking tape or a masking agent in a coloring step. The adhesive tape or This is completely different from the conventional coloring or masking method using a masking agent. This also means that the parts that are not to be colored are exposed and the parts that are to be colored are covered. In this respect, the laser beam of EP 3266598 A1 is It also differs from the frame processing.

[0052] Spectacle lenses having any conventional and known material can be used for this method. In one preferred embodiment, the eyeglass lenses comprise a polymer lens material. Polymeric lens materials that may be used in the present context are well known in the art in optics and ophthalmology. Suitable lens materials are, for example, polyamide, polycarbonate, Polyimides, polysulfones, poly(ethylene terephthalate) and polycarbonates The types of polymers are copolymers of polyolefins, polyurethanes, and polythiourethanes. Specific examples of particularly suitable lens materials are polycarbonate or polyamide. When exposed to plasma treatment, the polymer dissociates into polymer chains on the surface of the eyeglass lens. This prevents the formation of crosslinks in the subsequent stages of staining by the staining solution. Spectacle lenses having polyamide or polycarbonate as lens material: The greatest distinction in this respect is between plasma-treated and non-treated surfaces. It was found to exhibit the following.

[0053] The plasma treatment is carried out on the surface of the eyeglass lens to prevent coloration in preselected areas. In one embodiment, the method comprises the steps of: The eyeglass lens masked by the masking means or the lens holder is irradiated with plasma. Plasma treatment of material surfaces has been shown to be an effective method for producing controlled surface modifications. This is a recently developed technique (Zhou et al., Investigation of surface properties of plasma-modified p olyamide 6 and polyamide 6 / layered silic ate nanocomposites, J Mater Sci (2011)46:3 084-3093;Poncin-Epaillard,Illustration o f surface crosslinking of different poly mers treated in argon plasma,Macromol.Ch em.Phys.198,2439-2456(1997)). Positive ions in plasma, The presence of species such as electrons, free radicals, and natural species can cause changes in surface properties within the subject materials. In particular, in polymers, the plasma induces the formation of free radicals within the polymer chains. It is known to induce formation of the fluorine-containing polymer and thus, for example, crosslinking, etching, activation, It functions to activate the polymer surface by, for example, The type of reaction may depend on the plasma conditions, the subject material, the plasma source, etc. In a preferred embodiment, for the subsequent step of providing a colored solution, the treatment plasma The intensity is the change in the surface properties of the exposed (preselected) portion of the surface of the eyeglass lens. For example, in the case of polymer eyeglass lenses, In this case, the plasma induces cross-linking on the surface, which in turn dissolves the exposed lens surface material. This results in a physical tightening, which allows the coloring solution to penetrate the exposed (pre-exposed) surface of the eyeglass lens. Therefore, the preselected portion can be prevented from entering the preselected portion. The result is that the polymer is not colored. Crosslinking on preselected portions of the surface of the eyeglass lens to form a This will prevent the particles from being stained in the subsequent staining step.

[0054] To allow selective coloring with distinct coloring patterns and high quality, the plasma state must be selected appropriately. Different materials with different properties are within the scope of the present invention. All possible lens materials and plasma generation materials can be combined in one It is not possible to indicate the specific conditions that may be used for all possible devices. However, one of ordinary skill in the art can determine an appropriate set of plasma conditions by considering the following constraints: This will be the case.

[0055] In this respect, the direct current of the plasma is preferably 50 to 1,000 mA, more preferably 50 to It is preferable that the current flow rate is 500 mA, and most preferably 100 to 300 mA. In a preferred embodiment, the DC voltage is 100V to 10,000V, more preferably In another embodiment, the pressure during the plasma treatment may be 100 V to 1,000 V. is 0.001 Pa to 100 Pa, preferably 0.001 Pa to 50 Pa, and more preferably The pressure during plasma generation can be in the range of 0.001 Pa to 10 Pa. May vary depending on type and / or plasma DC or voltage. Less than these ranges The plasma state prevents coloration on preselected portions and therefore selectively and separately On the other hand, it would be impossible to realize a change in surface properties that would allow for individual coloring. Excessively powerful plasma conditions can damage or degrade the lens properties of preselected portions. This can result.

[0056] The duration of the plasma treatment is preferably about 10 minutes or less, and more preferably from 10 seconds to 5 minutes. This is because the relatively long exposure to the plasma reduces the relatively poor adhesion of the lens. However, the duration depends on the applied plasma. The plasma current and voltage may vary depending on the type and / or strength of the plasma. Plasma treatment may be carried out by any conventional method, as long as the method can provide the above conditions. This can be done by industrial means of generating a plasma that

[0057] A particularly preferred means of generating plasma is, without limitation, one that uses a gas discharge. Preferably, the gas is oxygen (O), nitrogen (N), argon (Ar), carbon dioxide. (CO2), helium (He), xenon (Xe) and air. At least one of the gases may be selected from the group consisting of oxygen (O), argon (Ar), and air. In one embodiment, but not limited to, the current through the gas A glow discharge plasma, which is a plasma formed by passing through a gas, can be used. In this embodiment, a relatively compact ion gun plasma may be used. can.

[0058] After the plasma treatment, the colored solution is at least partially removed from the plasma-treated megacosm. In one embodiment, the coloring solution is applied to the surface of the lens, e.g. The entire surface of the lens is provided with a coloring solution, for example by immersing the entire lens in a coloring bath having the coloring solution. This is because the wafers that were selectively treated with plasma in the previous step can be The properties of a preselected portion of the lens' surface have changed such that the coloring solution can no longer be applied. In another embodiment, the coloring solution is, for example, For example, eyeglass lenses can be designed so that the longer a portion of the lens is exposed to the tint, the darker it becomes. The lenses are immersed in a color bath and gradually removed from the bath to obtain a color gradient. It can be provided in such a way.

[0059] Any tinting solution suitable for tinting eyeglass lenses can be used. For example, US Patent Application Publication No. 20070294841, European Patent No. 2966484B1 or the coloring solution disclosed in U.S. Pat. No. 5,453,100A. No. 6,399,413, the contents of which are incorporated herein by reference. In the form, the colored solution can be converted into a colored vapor. Surface of eyeglass lenses that have not been treated with plasma due to plasma treatment or masking The coloring solution is applied to the exposed and plasma-contacted portions of the surface to provide selective coloring. It is therefore not possible to tint preselected portions of the surface of a treated spectacle lens. In the case of eyeglass lenses having polymer lens materials, this can be achieved by plasma treatment. This is due to the resulting cross-linking on the surface of the polymer eyeglass lens.

[0060] In a preferred embodiment, the coloring solution is an aqueous coloring solution. The plasma treated surface is compared to a preselected portion of the surface treated by the plasma. Relatively effective due to its relatively high reactivity towards untreated surface areas. and providing a discrete selective color pattern on the surface of the eyeglass lens. In one relatively preferred embodiment, the aqueous tinting solution is applied to a polymeric eyeglass lens. Can be used to color.

[0061] Furthermore, the coloring solution comprises at least one dye. The dye is used to color the eyeglass lens. The materials must be suitable for use in the manufacture of the product.

[0062] The coloring solution may further comprise a swelling agent (also called an impregnation solvent). The swelling agent helps the dye penetrate the surface of the eyeglass lens to facilitate the dyeing process. However, after plasma treatment, the surface of the eyeglass lens experiences a change in properties and The expansion agent of the present invention is a mega-particle that has not been treated with plasma. It selectively functions on a portion of the surface of the lens, but by impregnating it, it can be selectively It does not function on preselected portions of the surface of the plasma-treated eyeglass lens. The swelling agent then results in the part of the surface of the eyeglass lens that is not treated by the plasma. The selected swelling agent further provides a relatively distinct color on the surface. Exemplary swelling agents include dipropylene glycol monomethyl ether. Ether (DPM), tripropylene glycol monomethyl ether (TPM), and Glycol ethers such as propylene glycol monomethyl ether (PM), etc. Alcohols such as recall, aromatic alcohols, non-aromatic alcohols, etc., and / or These include aromatic compounds such as xylene, toluene, benzene, etc. as blowing agents. Alcohol, more preferably o-phenylphenol, benzyl alcohol, or other aromatic compounds. Aliphatic alcohols have been found to provide the most selective coloration after plasma treatment. The effect is that these types of expanding agents are used to create aqueous tinting solutions for tinting polymer eyeglass lenses. This is even more evident when used within

[0063] In another embodiment, the coloring solution may further comprise a mild solvent. The mild solvent acts as a swelling agent while attacking the surface of the lens and allowing the dye to penetrate. It is blended with and acts as a diluent and wetting agent, and reduces the aggressiveness of the leavening agent. Mild solvents include, for example, propylene glycol (PG), 1,4 butanediol, or It may be ethylene glycol monobutyl ether (EB).

[0064] The molar ratio between the dye and the swelling agent is not limited, but is preferably 0.01m mol% to 5.00 mol%, preferably 0.05 mol% to 2.00 mol%, It may change.

[0065] In a further embodiment, the coloring solution is applied to the lens to facilitate mixing of the solution. To further improve the impregnation of the dye into the surface of the glass, surfactants and / or buffers may be added. The surfactant may include, but is not limited to, linear alkylbenzene Sulfonates, lignin sulfonates, fatty alcohol ethoxylates, and alkali The compound may have at least one selected from the group consisting of phenol ethoxylates. Buffers can be used to reduce the aggressiveness of the coloring solution or to adjust the pH. An example of a buffer is at least one selected from the group consisting of citrate and acetic acid. You can also have one.

[0066] This method allows the colored solution and pattern to be applied directly onto the surface of the eyeglass lens. No auxiliary layers such as primer layers are required. Thus, the method is easily applicable. It is affordable and cost effective to implement.

[0067] The method of the present invention further comprises the step of removing the coloring solution from the surface of the eyeglass lens. The method of the present invention can then be used to apply, for example, AR or HC coatings, mirror coatings, photoresist coatings, etc. The method may further include a coating step such as a photochromic coating, a polarizing coating, a top coat, etc. can.

[0068] The lens holder according to the second aspect of the invention is adapted to prevent a part of the surface of the spectacle lens from being damaged by plasma treatment. The lens holder is designed to protect the lens from damage in predefined positions. a reception unit adapted to hold a Ganech lens; When the eyeglass lens is held by the reception unit, a part of the surface of the eyeglass lens is masked. and a masking unit suitable for masking the lens holder. Any shape may be used, so long as it can provide the intended function and can be manufactured using any conventional method. It can be in this state.

[0069] In a preferred embodiment, the lens holder is manufactured using additive manufacturing (AM), also known as 3D printing. ) can be manufactured by the lens holder without any limitation. This provides high flexibility in designing the coloring pattern. This provides great flexibility.

[0070] 3D printing is the process of creating CAD (computer aided design) parts in precise geometric shapes, layer by layer. The construction of a three-dimensional object from a data-aided design (DA) model or digital 3D model. The process utilizes chemical and / or physical processes to convert amorphous materials (e.g., liquids, powders, etc.) into uda and similar) or neutral materials (bands, wires) These are implemented directly based on the data models in the computer. Although it is a shaping method, a special tool (e.g., a mold) that preserves the individual shape of the workpiece is used. , and is not required for any particular product. For current related technologies, see VDI Reported by Statusreport AM 2014. 3D Printing Today For an overview of the methodology, see 3druck.c, last accessed on February 15, 2022. om / grundkurs-3d-drucker / teil-2-uebersich t-der-aktuellen-3d-druckverfahren-462146 Provided by / .

[0071] Methods of Multijet Modeling, Multijet Fusion, or Polyjet Printing It has been found that the method is particularly suitable. Searched de.wikipedia.org / wiki / Multi_Jet respectively The URL is https: / / www.materialise. com / en / manufacturing / 3d-printing-technol The URL is www.materiali se.com / de / manufacturing / 3d-druck-technol ogien / polyjet or www.stratasys.com / As described at the URL polyjet-technology, or Instead, stereolithography (SLA, https: / / en.wikipedia.org / ) is used. See ia.org / wiki / Stereolithography), select Selective laser sintering (SLS, https: / / en.wikipedia.org / wiki / Selective_laser_sintering i / Selective_laser_sintering), Laser melting (SLM, https: / / en.wikipedia.org / wiki / Selective_laser_melting), or Fused Deposition Modeling (FDM, https: / / de.wikipedia.org / wiki / Fused_Depo In a preferred embodiment, 3D The printing method can be multi-jet fusion, which uses a laser does not require a 300 mm thick film and therefore offers a relatively high throughput and very good surface quality is doing.

[0072] By applying 3D printing in manufacturing the lens holder, the lens holder can be designed and Increased flexibility is provided for testing very complex and / or small packages. To realize any coloring pattern including turns without any technical difficulties can be done.

[0073] Any printable plastic material can be used for the lens holder. Metals are generally avoided to reduce possible scratches on the lenses. The holder may have an additional coating such as an AR (anti-reflective) or HC (hard coat) coating. Plastic materials are particularly preferred because they are provided on eyeglass lenses without any adhesive. More specifically, it can be printed from powder using Multi-Jet Fusion. The plastic material used is advantageous due to its low cost, relatively high printing throughput, and the ease of use of supporting parts. In a preferred embodiment, the lens holder material is Due to its good thermal and mechanical resistance, low cost, and compatibility with multi-jet fusion The material may be, but is not limited to, polyimide or polyurethane.

[0074] Due to its excellent durability, the lens holder of the present invention can be used for multiple lenses. Adhesive that can be used multiple times and is used for tape coloring Unlike tape, it is reusable. This is because the lens holder has already been plasma treated. After being removed from the tested eyeglass lenses, the lenses may undergo multiple cycles of plasma treatment. This means that a corresponding number of masks must be produced. and further by a laser beam for the desired pattern, respectively. In the case of having laser beam processing which requires processing all the lenses, The need to manufacture lens holders in the number corresponding to the number of lenses to be tinted is often generated. With this lens holder, the present invention is cost-effective and environmentally friendly. This can provide efficient and effective coloring.

[0075] The reception unit of the lens holder is adapted to receive the desired pattern of the eyeglass lens. The masking unit is located at a predetermined position (corresponding to the position of the masking unit). It is suitable for holding an eyeglass lens in a defined position.

[0076] In one exemplary embodiment, the reception unit and the masking unit of the lens holder The units are connected to each other. By connecting to each other, the reception unit The masking unit and the lens holder are formed as a single unit. Thus, this is a connecting unit or link between the masking unit and the reception unit. This can be achieved by a continuous surface.

[0077] In another exemplary embodiment, the reception unit is a small portion of the surface of the eyeglass lens. The device may have a subunit configured to be attached at least in part to the In a further embodiment, the subunit comprises at least an upper peripheral surface of the lens. The annular attachment means may be an annular attachment means surrounding the surface of the object to be attached. Designed to substantially match the top and / or outer (side) periphery of the lens. The annular attachment means may hold the outer and / or upper periphery of the spectacle lens. provides rigidity and mechanical strength to the reception unit to hold the eyeglass lenses. The present invention relates to a method for fixing a spectacle lens covered by an annular attachment means. Since the surrounding area does not experience the plasma treatment, this area is protected from subsequent coloring. Thus, the portion of the lens may be tinted in a stepwise manner, as required. In an appropriate finishing step, the lens is cut from the eyeglass lens. The width of the annular attachment means may be up to 15 mm, preferably between 1 mm and 10 mm. Widths greater than 15mm become impractical and widths less than 1mm are too narrow for the lens holder. This would compromise the mechanical strength of the

[0078] The reception unit comprises a means for holding the spectacle lenses, preferably a lens holder. and at least two means for holding the lens, which are attached to the lens. and removable therefrom, or mountable to the lens and The lens holder is configured to hold the lens during plasma processing. Can be attached / assembled to the lens and then removed / disassembled therefrom so as not to move In one embodiment, the holding means is a means for holding the lenses of the glasses to be tinted. The lens is then fitted to the individual thickness and edge profile of the lens and secured in place. It is structured as follows:

[0079] In one exemplary embodiment, the retention means may be a snap fit. Fits are used to attach two individual components together to join them into one In such a case, the lens is attached to a corresponding holding means. For example, eyeglass lenses can be designed with components that Manufactured by injection molding and caused by injection molding Therefore, in the case of a lens having a unique edge shape, the holding means holds the lens. The lens edge profile can be configured to match the edge profile of the lens. In an embodiment, the holding means includes a marking for marking an alignment position of the lens holder. That is, by assembling the holding means at the corresponding position of the lens, This allows the lens holder to be positioned according to the desired alignment with the lens. Not only will this cause damage to the surface, but it will also expose areas that should not be colored during plasma treatment. and fixed to the lens so that the part desired to be tinted is not exposed. This results in a colored pattern in the correct position.

[0080] The holding means are spaced apart from one another to ensure that the lenses are clamped and fixed during plasma processing. For example, the two means may be annular attachment means. at two symmetrical points, i.e. at 180° from each other or at 90° from each other. It can be displaced by ~180.

[0081] In one embodiment, the lens holder comprises at least one, preferably at least two The alignment position may be marked on the lens. In this case, the lens may also have a top and / or outer periphery. The surface may also have markings at corresponding locations. The guide is easily aligned with the lens in the correct position, allowing for In one embodiment, the lens can be used to precisely achieve the desired color pattern. The product is manufactured by injection molding and the injection molding In the case of a marking device having a unique edge shape due to marking, the marking device may be It matches the edge profile of the lens so that it fits the lens in the desired position. The system can be configured to perform chip-matching.

[0082] The lens holder is adapted to mask a portion of the surface of the eyeglass lens and to subject the lens to plasma treatment. A masking unit configured to protect a portion of the surface of the eyeglass lens during processing. The masking unit is adapted to mask the spectacle lens on which the desired coloring is to be obtained. The masking unit is designed to be positioned on a portion of the surface. Only the masked portions of the surface of the Ganech lens are subsequently colored in the coloring step. By taking this into consideration, any desired shape can be designed.

[0083] In one embodiment, the masking unit is separate and independent from the reception unit. The masking unit may be a separate unit arranged vertically. The masking unit and the reception unit are connected without having a The reception unit is connected to the reception unit through at least one connection unit. For example, the connection unit can be in the form of a bridge, which is connected to the lens. No contact between the reception unit and the masking unit. This configuration allows for high flexibility in designing coloring patterns. It is possible to provide high quality even with very small and / or complex patterns. This can be easily achieved with tinting. Constraints on tape coloring where turns cannot be realized with high precision due to difficulties in alignment In one embodiment, the connection unit comprises a holding means for the lens holder and and / or on the annular attachment means.

[0084] In a preferred embodiment, the thickness of the connection unit is at most 10 mm, more preferably 0.1mm to 5mm, and most preferably 0.5mm to 1.5mm. Bridge If the gasket unit is too thick, it may result in undesirable shearing on the corresponding surface of the spectacle lens. In another embodiment, the spectacle lens is The height of the connection unit from the surface is at most 20 mm, more preferably 5 mm to 15 mm; It could be.

[0085] In another embodiment, the masking unit and the reception unit have a continuous surface. The masking unit forms a single unit having a plurality of portions of the spectacle lens to be tinted. It is desirable and selected to cover a portion corresponding to a portion of the surface and not to be colored. corresponding to preselected portions of the surface of the eyeglass lens that will not be exposed to the selective plasma treatment. The shape of the opening may be any of the following: and can be designed with the desired coloring pattern in mind. can.

[0086] In a further embodiment, the lens holder comprises a combination of tinted and non-tinted surfaces. It may be suitable for providing a colored pattern having a gradient coloring at the border, This is referred to below as boundary gradient coloring. Adjusting the height between the part of the masking unit where the color is provided and the surface of the eyeglass lens The higher the height of the masking unit from the surface of the eyeglass lens, the , the transition of the gradient of the pattern becomes smooth. The masking unit is provided with a portion for preventing the occurrence of a spatial gap between the masking unit and the surface of the eyeglass lens. By creating a sufficient vertical margin, the surface of the eyeglass lens corresponding to the location of the spatial protrusion The surface undergoes a plasma treatment of controlled intensity, which results in a boundary gradient coloration, That is, a gradient coloring at the boundary line is obtained. In this respect, the lens of this embodiment The holder allows obtaining eyeglass lenses with a boundary gradient coloration. The spectacle lens thus obtained may be subjected to any of the above-mentioned methods for selectively tinting spectacle lenses and the method. This can be achieved by the lens holder described in connection therewith.

[0087] Further features, properties and advantages of the present invention will become apparent from the following detailed description when considered in conjunction with the accompanying drawings, in which: This will become apparent from the following description of the embodiments. [Brief description of the drawings]

[0088] [Figure 1] 1 shows a flow chart of a method for tinting a spectacle lens having a surface treated by selective plasma treatment according to a first embodiment of the present invention. [Diagram 2] 2 shows a lens holder according to a second embodiment of the invention and a lens aligned with the lens holder, in this case having only a reception unit, the masking unit being omitted for easier understanding; [Diagram 3] 3A-3B show a first exemplary embodiment of the present lens holder having a reception unit and a masking unit as a single unit, thereby being used for positive tinting. [Figure 4] 4A-4B show a second exemplary embodiment of the present lens holder having a reception unit, a masking unit, and a connection unit as separate units, thereby being used for negative tinting. [Diagram 5] 5A-5B show a third exemplary embodiment of the present lens holder, in which the reception unit has at least two marking units and their corresponding lenses. [Figure 6] 6A-6B show a fourth exemplary embodiment of the present lens holder, in which the reception unit has at least two marking units and their corresponding lenses in a different form than that of FIG. 5A. [Figure 7] 7A-7B show a fifth exemplary embodiment of the present lens holder for border gradient tinting and a lens having border gradient tinting. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0089] FIG. 1 shows a flow chart of a method for coloring according to a first embodiment of the present invention. In step S202, a preselected portion of the surface of the eyeglass lens is tinted with a desired color. The pattern is selected in consideration of the color of the lens, i.e. the lens should not be tinted. A portion of the surface of the spectacle lens is selected as the preselected portion. In one embodiment where the portion is masked for selective plasma treatment, one The spectacle lens (or lenses) is assembled in a masking means or lens holder. In this case, the masking means is arranged to cover the eyeglass lens except for the preselected portion. The material covers a portion (or portions) of the surface of the lens.

[0090] In a second step S204, a preselected portion of the surface of the eyeglass lens is plasma- In embodiments using a masking step, The spectacle lens assembled / mounted in the masking means or lens holder is plastic. The wafer is then subjected to a plasma treatment, whereby only preselected portions are exposed to the plasma.

[0091] In a third step S206, a dye having a dye suitable for dyeing the eyeglass lens is applied. A color solution is provided. The lenses are immersed in the color solution (partially) to obtain the desired color. The masking step or masking means is to be immersed (partially or entirely) in the In an embodiment of use, the masking means is removed from the lens before the tinting solution is applied. That is, only the eyeglass lenses are immersed in the coloring solution.

[0092] This step involves shuttling the lens in and out of the tinting solution for gradient tinting. In cases where selective gradient coloring is desired, When the lens is fully or partially immersed in the coloring solution, the lens Afterwards, the dye is added to the coloring solution to achieve the desired color degradation in terms of hue and intensity. and a swinging motion out of the colored solution at least partially out of the colored solution. do.

[0093] In a fourth step S208, a spectacle lens having a desired color pattern is obtained. It is being done.

[0094] The fourth step S208 is followed by a step of removing the coloring solution from the surface of the eyeglass lens. and a final, optional coating step, e.g., AR or HC coating, occurs. is.

[0095] FIG. 2 shows a configuration for protecting the surface of an eyeglass lens 60 during selective plasma treatment. FIG. 1 shows a lens holder 10 for tinting a spectacle lens 60. The lens holder is A reception unit 20 and a masking unit (not shown). In Figure 2, the masking unit is removed to show the clear structure of the reception unit. The lens holder 10 and the eyeglass lens 60 are in a predefined position. The reception unit 20 is configured to hold the eyeglass lens 60 in the eyeglass frame 10. 2 is aligned on the surface of the eyeglass lens to be tinted. The lens holder 10 includes a reception unit 20 and a masking unit. The reception unit 20 has an annular mounting means 2 1. The annular attachment means 21 can be mated with the upper peripheral surface 61 of the lens 60. The thickness may be from 0.1 mm to 20 mm. The upper peripheral surface 61 of the lens 60 is a lens that may be cut or removed after tinting if not needed. After the lens holder 10 is removed from the eyeglass lens 60, the colored solvent is The liquid 70 can be applied to at least a portion of the surface of the eyeglass lens 60 .

[0096] FIG. 3A provides a first exemplary embodiment of the present lens holder 10, in which The lens holder 10 comprises: (i) an annular mounting means 21 and at least two retaining means 22a; 22b, configured to hold the eyeglass lens 60 in a predefined position. and (ii) a masking unit 30a. Here, the masking unit 30a and the reception unit 20 are single units having a continuous surface. The masking unit 30a is configured as a single unit. The surface of the substrate 31 has an opening 31a through which the substrate 31 is to be exposed to plasma treatment. 1a is depicted as being circular in shape for simplicity, however, the opening 31a may be configured in any suitable manner. It can be easily understood from the details already provided that the invention can be realized. The masking unit 30a has the same shape as the desired color pattern without the mouth portion 31a. The lens holder 10 is provided with an annular mounting means 2. 1 and the surfaces of the eyeglass lenses 61, 63 covered by the masking unit 30a. A portion is provided with a positive coloring that is colored in a subsequent coloring step, The reception unit 10 is illustratively a cover for the lens surface during plasma treatment. two holding means 22a providing fixed holding of the lens to protect the attached portion, The holding means 22a, 22b are adapted to fit the edge profile of the lens. It is designed to be

[0097] Using 3D printing, sometimes very small openings or complex shapes can be created. This allows for a relatively flexible design of the lens holder 10 with an opening having The number and / or shape of the openings 31a may vary depending on the desired coloring pattern. The corresponding surfaces of the eyeglass lens 60 are exposed during the plasma treatment, and As a result, the lens holder 1 is not colored in the subsequent coloring step. 0 is to be removed from the lens 60 and the coloring solution 70 is to be applied to the eyeglass lens 60. As a result, colored patterns 61, 62, and 63 are provided as shown in FIG. 3 and a lens 60 having an untinted surface 62 is obtained.

[0098] FIG. 4A provides a second exemplary embodiment of the present lens holder 10, in which The lens holder 10 comprises: (i) an annular mounting means 21 and at least two retaining means 22a; (ii) reception unit 20 having reception unit 22b; and a masking unit 30b which is a vertically and separately positioned unit. The masking unit 30b is connected to at least one connecting unit 40a, 40b. The masking unit 30b is connected to the reception unit 20. The connecting unit 40a can be connected to the stage 21 and / or the holding means 22a, 22b. , 40b, the lens surfaces below the connection units 40a, 40b are exposed to plasma treatment. and therefore not to be colored in the subsequent coloring step. For this purpose, the device is constructed so as not to have contact with or cover the The thickness and height of the connection units 40a, 40b are as described above in the relevant sections. The number and / or shape of the connection units 40a, 40b can be adjusted as desired. The shape can be changed and the reception unit 20 and the masking unit 3 0b, which allows for a tight connection between the mass The king unit 30b performs plasma treatment to fix a high-quality colored pattern. In FIG. 4A, one masking unit 30 having a circular shape is shown. Although only b is provided, it should be understood that this is for illustrative purposes. The number and / or shape of the masking units 30b (and thus of the connecting units as well) may be It can be easily understood that the color can be freely adjusted depending on the desired coloring pattern. The remaining portion becomes the opening 31b of the lens holder 10. The portion of the surface 62 of the spectacle lens corresponding to b will be exposed to a plasma treatment, And therefore, it will have a surface 62 that is not colored, while the surfaces 61, 63 The masked portions will not be exposed to the plasma treatment and will therefore not be stained. Thus, the present invention provides a method for manufacturing a semiconductor device having a semiconductor substrate having a surface 61, 63 that is formed by applying a pressure to the semiconductor substrate as shown in FIG. Thus, it is possible to provide not only positive coloring but also negative coloring. The colored upper perimeter of the lens 61 may be cut off in a finishing step if necessary. can be done.

[0099] 5A and 5B show the alignment position of the lens holder 10 on the eyeglass lens. At least one marking unit 50a, 50b configured for marking A third exemplary embodiment of the lens holder 10 according to the first or second embodiment, further comprising: The marking units 50a, 50b are depicted here in these figures. The present invention is not limited to the embodiments shown, and may be applied to any desired color at any desired location. Precise alignment of lens holder 10 on lens 60 to provide pattern 63 As long as the lens can support the lens, it can have any shape. 0 marks the marking units 50a, 50b on the upper and / or outer peripheral surface of the lens 60. 0b. The lens 10 can be easily and precisely aligned with the lens 60 in the correct position. This makes it possible to obtain a desired color pattern at a precisely desired location.

[0100] 6A and 6B show a fourth exemplary embodiment of a lens holder, in which In addition, the lens holder of the first or second embodiment is adapted to fit the edge profile of the eyeglass lens. The device further comprises marking units 50a', 50b' designed to fit the For example, if the eyeglass lens is manufactured by injection molding, the lens For example, as shown in FIG. 6B, the lobe 66a is depicted for illustrative purposes. The unique shapes of the side edges such as '(left) and square protrusion 66b' (right) In this embodiment, the marking units 50a', 50b' may include a lens Can be designed to fit existing edge profiles of 66a' and 66b' It can be designed, preferably by using 3D printing. No additional markings need to be provided on the lens and the mark can be placed at the correct position. The lens holder 10 is aligned with the lens unit 50a', 50b'. This has the advantage that the initial lens design can be used as is to achieve the desired results. In some cases, the marking units 50a', 50b' may further comprise a holding unit. In such a case, the holding unit may function as a separate holding unit. 22a and 22b may be unnecessary.

[0101] 7A and 7B show a unique lens holder 10 and a method for using the lens holder 10. 1 shows a fifth exemplary embodiment of a lens 60 having a boundary gradient tint 64 fabricated using the In this embodiment, the masking unit 30c is disposed adjacent to the opening 31c. In this embodiment, the masking unit 30c may further include a spatial protrusion 32. The average height of the protrusion 32 and the surface of the eyeglass lens 60 or the surface of the masking unit 30c Due to the spatial gap between the lens 60 and the colored surface 63, the lens 60 is not colored. A boundary gradient coloring 6 has a boundary having a smooth transition 64 of color intensity to a clean surface 62. 4. Depending on the height of the spatial protrusion 32 from the surface of the eyeglass lens 60, In contrast, the coloring intensity and degree of transition may vary. A colored lens manufactured using a lens holder 10 having lens units 30a and 30b. The boundary between the colored and uncolored areas is the line from the colored surface to the uncolored surface. , which would have a sharp (non-gradient) transition in color intensity to

[0102] As shown in FIG. 7B, the boundary is completely covered by the masking unit 30. At boundary line 65 (on the left, between colored surface 63 and uncolored surface 62), The transition in color intensity is sharp (has no gradient), while the lens holder 10 The corresponding portion is a boundary having a space gap between the spatial protrusion 32 and the surface of the eyeglass lens 60. At line 64 (on the right, between colored surface 63 and uncolored surface 62), The transition in color intensity from the colored surface 63 to the uncolored surface 62 is smooth. Let's become.

Claims

1. A method for tinting an eyeglass lens (60) having a surface, comprising the steps of: (i) selectively subjecting preselected portions (62) of the surface of the eyeglass lens to a plasma A processing step; (ii) removing a small portion of the surface of the eyeglass lens that has not been treated by the plasma treatment; providing a coloring solution (70) to at least a portion (63); The method comprising:

2. of said spectacle lens other than said preselected portion (62) prior to said plasma treatment. masking a portion (63) of said surface; - after said plasma treatment, applying said colouring solution (70) to said spectacle lens (60) Prior to application, the masked portion (63) of the surface of the eyeglass lens is demasked. The steps to be taken are:

2. The method of claim 1, comprising:

3. 4. The eyeglass lens (60) according to claim 3, characterized in that it comprises a polymer lens material.

3. The method according to claim 1 or 2.

4. 2. The method of claim 1, wherein the plasma treatment is performed by utilizing a gas discharge. The method according to any one of claims 1 to 3.

5. The coloring solution (70) according to any one of claims 1 to 4, characterized in that it is an aqueous coloring solution. The method according to any one of claims 1 to 5.

6. The portion of the surface of the eyeglass lens (60) other than the preselected portion (62). The step of masking the portion (63) is performed to hold the eyeglass lens (60). and a reception unit (20) configured as above, and the eyeglass lens during the plasma treatment. and protecting the portion (63) of the surface of the lens (60) other than the preselected portion (62). a masking unit (30) for masking the lens at a predefined position.

6. The method according to claim 2, wherein the holder (10) is implemented. The method according to

7. A lens holder (10) for a spectacle lens (60) having a surface, - configured to hold said spectacle lens (60) in a predefined position A reception unit (20); held by the reception unit (20) at the predefined position configured to mask a portion (63) of the surface of the eyeglass lens when A masking unit (30), In a lens holder (10) having The reception unit (20) and the masking unit (30) are connected to each other. A lens holder (10) characterized in that it is connected to

8. The reception unit (20) is adapted to receive at least a portion of the surface of the eyeglass lens. The present invention is characterized in that it has a subunit configured to be mounted on a A lens holder (10) according to claim 7.

9. 9. The method according to claim 8, characterized in that the subunit is an annular mounting means (21). A lens holder (10).

10. The masking unit (30) and the reception unit (20) are connected together.

10. The method according to claim 7, wherein the first and second electrodes are formed as a single unit having a connecting surface.

2. A lens holder (10) according to claim 1.

11. The masking unit (30) and the reception unit (20) are connected, This allows for an independent and separate lens to be attached to the surface of the eyeglass lens (60) without contacting the surface. At least one connection unit (40a, 40b) configured to form a unit of A lens holder (10) according to any one of claims 7 to 9, characterized in that it has ）。

12. The masking unit (30) is arranged adjacent to the opening (31) so as to protrude into the space. The lens hole according to any one of claims 7 to 11, characterized in that it has a portion (32). Luda (10).

13. A system suitable for tinting an eyeglass lens (60), comprising: a colouring bath with a colouring solution (70), In a system having - an apparatus for plasma treatment, - a lens holder (10) according to any one of claims 7 to 12, The system further comprising:

14. The surface of the eyeglass lens held by the lens holder (10) during plasma treatment.

8. The selective tinting of a spectacle lens, adapted to cover a portion (63) of the Use of a lens holder (10) according to any one of claims 1 to 12.

15. The lens holder (10) is attached to the preselected portion (62) prior to the plasma treatment. ) configured to mask a portion (63) of the surface of the spectacle lens other than the and the lens holder (10) is, after plasma treatment, 2. The method of claim 1, wherein the lens is provided with a reflective coating.

5. Use of a lens holder (10) for selective tinting of a spectacle lens (63) according to claim 4.

16. When executed by a computer, the computer performs the method according to any one of claims 1 to 6. A computer readable data set having instructions for performing the steps of the method of any one of claims 1 to 5. a carrier or data signal, the step of plasma processing being suitable for plasma processing The step of providing a coloring solution is performed by the apparatus and includes providing a coloring solution. A computer-readable data carrier or a data signal processor, which is executed by a device suitable for issue.

17. A lens holder according to any one of claims 7 to 12 and a lens holder according to any one of claims 1 to 6. and instructions for use as described in claim 1.

18. A method for tinting an eyeglass lens (60) having a surface, comprising the steps of: (i) removing the preselected portion (62) of the spectacle lens prior to plasma treatment; Masking a portion (63) of the surface; (ii) after said plasma treatment, applying a coloring solution (70) to said eyeglass lens (60); Prior to providing, the masked portion (63) of the surface of the eyeglass lens is demasked. a step of skinning; The method according to claim 1, further comprising:

19. 4. The eyeglass lens (60) according to claim 3, characterized in that it comprises a polymer lens material.

18. The method according to claim 18.

20. 2. The method of claim 1, wherein the plasma treatment is performed by utilizing a gas discharge. 8 or 19. The method according to claim 19,

21. 21. The method according to claim 18, wherein the coloring solution (70) is an aqueous coloring solution.

13. The method according to any one of claims 1 to 12.

22. The portion of the surface of the eyeglass lens other than the preselected portion is The masking step of the portion (63) is suitable for holding the eyeglass lens (60). The reception unit (20) and the eyeglass lens (60) during the plasma treatment. to protect said portion (63) other than said preselected portion (62) of said surface of said and a lens holder (30) at a predefined position having 10) according to any one of claims 18 to 21, characterized in that it is carried out using The method described.

23. When executed by a computer, the computer is adapted to perform the method according to any one of claims 18 to 22. A computer readable data having instructions for performing the steps of the method according to any one of claims 1 to 5. A carrier or data signal, the step of plasma processing being suitable for plasma processing. and the step of providing the coloring solution comprises providing a coloring solution. A computer-readable data carrier or data TA signal.

24. A lens holder according to any one of claims 7 to 12 and any one of claims 18 to 22. and instructions for use according to claim 1.

Images