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| Number | Title | Issue Date |
| 8002852 | Lens dyeing method and lens dyeing apparatus A method of dyeing a lens, comprises the steps of: (a) applying a dyeing ink containing a sublimable dye onto a base material to produce a dyeing base body; (b) placing the dyeing base body and the lens so that a dye-applied surface of the dyeing base body and a sur... | 08/23/2011 |
| 7892296 | Photochromic benzopyrans The present invention relates to photochromic benzopyrans and to the use thereof in plastics of all kinds, especially for ophthalmic purposes. The inventive compounds are photochromic benzopyran compounds in which a polycyclic aromatic is joined to the 5 and 6 posit... | 02/22/2011 |
| 7422610 | Method and device for dyeing lenses In a method of coloring a dye coating-formed lens by heating, the lens is subjected to half dyeing by changing the heating temperature depending on the lens site. This dyeing method involves heating a lens having a dye coating-formed on the surface thereof in a heat... | 09/09/2008 |
| 7393368 | Dyeing method of dyeing plastic lens and dyeing device A dyeing method of a plastic lens (10), including the steps of placing the lens (10) in a vacuum vapor deposition device (20); placing a base body (1) for dyeing in the vapor deposition device (20), the base body having a dye appli... | 07/01/2008 |
| 7354959 | Water-based inks for hydrogel lenses The present invention is related to water-based inks for making colored hydrogel contact lenses, in particular, colored HEMA-based hydrogel contact lenses. The ink of the invention comprises at least one colorant, water, and a water-soluble and actinically-curable b... | 04/08/2008 |
| 7288578 | Biocompatible inks, preparation, and uses thereof An aqueous ink comprising containing a colorant and a radiation-curable oligomer or polymer containing H-active groups bonded to the oligomer or polymer backbone, some or all of whose hydrogen atoms have been substituted by radicals of a N-hydroxyalkyl (meth)acrylam... | 10/30/2007 |
| 7278736 | Contact lenses imparting a vivacious appearance to the eye The invention is directed to a colored contact lens designed for modifying or enhancing a wearer's eye color while giving the wearer's eyes an improved lively appearance (or more lively or vivacious appearance). In particular, a colored contact lens of the invention... | 10/09/2007 |
| 7255438 | Pad transfer printing method for making colored contact lenses A method comprises the steps of (a) providing a water based ink in at least one cliché with a contact lens pattern; (b) transferring the water based ink from the cliché to at least a surface of at least a contact lens forming mold by means of at least a transfer p... | 08/14/2007 |
| 7241312 | Silicone intraocular lens with blue light absorption properties A process for producing silicone intraocular lenses (IOLs) capable of absorbing blue light. Intraocular lenses so produced block blue light from reaching the retina of an eye implanted with the IOL. By blocking blue light from reaching the retina, the IOL thereby pr... | 07/10/2007 |
| 7232896 | Colorant for ocular lenses and material for colored ocular lenses using the colorant A colorant for ocular lenses represented by the formula (I) defined herein or a colorant for ocular lenses represented by the formula (II) defined herein. ... | 06/19/2007 |
| 7216975 | Method for preparing the reactive tinting compound and the tinted contact lens A method for preparing the tinted contact lens with the covalently bonded novel reactive tinting compound is disclosed. The reactive tinting compound with mono vinyl functionality is prepared by reacting the reactive dye with a hydrophilic monomer containing both pe... | 05/15/2007 |
| 7213918 | Method for making colored silicone hydrogel contact lenses The present invention generally relates to a method for making made-to-order (MTO) or customized silicone hydrogel lenses which have printed images on and/or below lens surfaces. A preferred method of the invention comprises printing and curing an ink on the molding... | 05/08/2007 |
| 7211149 | Method for applying a coating to a medical device This invention provides a method for efficiently applying a coating to each of a plurality of objects selected from the group consisting of ophthalmic lenses, molds for making ophthalmic lenses, and other medical devices, the method comprising dipping the plurality ... | 05/01/2007 |
| 7172286 | Colored contact lens A colored contact lens comprising a generally uncolored pupil region, a generally annular-shaped iris region and a multicolored pattern on the iris region. The multicolored pattern is sufficiently colored to change the apparent color of an iris of a person wearing t... | 02/06/2007 |
| 7147326 | Lens with colored portion and coated surface A lens with a colored portion is composed of a lens-forming polymer having a front lens surface and a back lens surface. A colorant is applied to at least one of these surfaces, and these surfaces may be coated with a coating layer composed of a material different t... | 12/12/2006 |
| 7143990 | Apparatus and method for the production of ophthalmic lenses An apparatus and method for the production of ophthalmic lenses, and particularly contact lenses, which minimizes damage of the lens in removal from the mold. The ophthalmic lens is produced in a mold having a male part and a female part that are placed in proximate... | 12/05/2006 |
| 7119210 | Dual function UV-absorbers for ophthalmic lens materials Disclosed are UV absorbers that contain a labile functional group capable of initiating free radical polymerization. ... | 10/10/2006 |
| 7078074 | Lens plasma coating system The invention provides a method for plasma coating of optical lenses, particularly lenses made of silicone-containing polymer. The method of the invention comprising selectively depressurizing and pressurizing an entry hold chamber and an exit hold chamber while con... | 07/18/2006 |
| 7044598 | Lens for eye and method for marking thereof It is an object of the present invention to provide an ophthalmic lens characterized in that it is capable of developing a color at a position where a light is irradiated, and to provide a marking method of the ophthalmic lens. It is another object of the present in... | 05/16/2006 |
| 7034069 | High molecular weight hydroxyphenylbenzotriazole uv-absorbers for thin film applications The present invention relates to highly compatible, high molecular weight hydroxyphenylbenzotriazole UV-absorbers and for their use in protecting plants in green houses and the protection of foodstuffs, beverages, pharmaceuticals, cosmetics, personal care products, ... | 04/25/2006 |
| 7026459 | Azo dyes The present invention relates to an azo dye of formula (I) wherein R1 and R2 are each independently of the other —NH—(CH2CH2)—OH, —NH—CH2—CHOH—CH2—OH, —NH—(CH2CH2 | 04/11/2006 |
| 7021761 | Lens with colored portion and coated surface A lens with a colored portion is composed of a lens-forming polymer having a front lens surface and a back lens surface. A colorant is applied to at least one of these surfaces, and these surfaces may be coated with a coating layer composed of a material different t... | 04/04/2006 |
| 7011408 | Printing colored contact lenses A method of making a colored contact lens comprises printing at least one layer of a colorant onto a contact lens using a printing process selected from the group consisting of ink jet printing, electrophotographic printing, thermal transfer printing, and photograph... | 03/14/2006 |
| 6955832 | Colored printing ink for contact lenses The present invention provides novels inks and methods for making a colored polymeric substrates, preferably a contact lens. In the inventive method at least a portion of a surface of a lens is coated with a color coat comprising at least one colorant, and a binder ... | 10/18/2005 |
| 6774178 | Tinted, high Dk ophthalmic molding and a method for making same The invention relates to ophthalmic molding formulations and to tinted, high Dk ophthalmic moldings. This invention also relates to a method for making a tinted ophthalmic molding. The method comprises: (a) providing a polymer precursor having cross-linkable or poly... | 08/10/2004 |
| 6365223 | Process for tinting a resin for optical materials A process for tinting a resin for optical materials, the resin containing sulfur, includes dipping the resin for optical materials into a liquid containing an inorganic acid and/or an organic acid and thereafter tinting the resin. Where the organic acid i... | 04/02/2002 |
| 6224945 | Process for the manufacture of a crosslinked, transparent, hydrophilic and photochromic polymeric material, and optical and ophthalmic articles obtained The process consists in dissolving a photochromic agent in a solvent, in impregnating the polymeric material with the solution of photochromic agent and in rinsing the polymeric material with an aqueous solution in order to replace the solvent with the aq... | 05/01/2001 |
| 6197226 | Process for tinting a resin having a large refractivity index and optical material tinted by the process A process for tinting a resin and a tinted optical material produced by the process. The process comprising dipping a resin into a liquid containing at least one compound selected from the group consisting of polar inorganic compounds and polar organic co... | 03/06/2001 |
| 6159296 | Optical lens coloring system It is difficult to efficiently fabricate optical lenses on which gradation coloring is finely implemented. Gradation coloring is implemented on optical lenses by using an optical lens coloring system having an optical lens holding device for holding an op... | 12/12/2000 |
| 6149692 | Method and composition for incorporating radiation-absorbing agents into polymers A method of incorporating dyes into polymeric materials. The method involved contacting a functionalized dye with a high molecular weight crosslinkable polymer precursor, dispensing the solution into a mold and applying radiation, thereby forming a molded... | 11/21/2000 |
| 6048371 | Process for preparing soft tinted lenses A process for preparing a soft, tinted lens is described. The process comprises the steps of softening and tinting a xerogel lens 1, wherein the softening and the tinting are achieved by immersing the xerogel lens 1 in a single solution 5 capable of softe... | 04/11/2000 |
| 6040005 | Colored polymers A colored polymer obtained or obtainable by polymerization of a mixture consisting essentially of a dye and a triazine compound having at least two groups selected from alkoxymethylamino and hydroxymethylamino. The colored polymers may be used in the colo... | 03/21/2000 |
| 5938795 | Method for preparing tinted contact lens An improved method for imparting a tint or color to a soft, hydrogel contact lens by uniformly dispersing a dye throughout the lens. The dye is a water-soluble halotriazine dye. The dye is reacted with a hydrophilic monomer to prepare a reactive dye conta... | 08/17/1999 |
| 5846457 | Light filtering contact lens method The invention relates to a light-absorbing contact lens and process for preparing same. A contact lens is tinted with colorants which provide desired spectral transmittance characteristics over the tinted portion of the lens. The contact lens provides tra... | 12/08/1998 |
| 5713963 | Method for making colored contact lenses and color coating composition The invention relates to a procedure for staining a contact lens, wherein at least part of the surface of the lens consisting of a polymer containing hydroxyl and/or carboxyl groups is coated with a color coating containing as polymer-cross-linking agent ... | 02/03/1998 |
| 5700394 | Method for the treatment of textile fibers A method for the treatment of a textile fiber to reduce the amount of UV light passing through a fabric produced from said treated fiber comprising treating a textile fiber with 0.1 to 6.0% by weight on the fiber, of a UV absorber of the formula (1) ... | 12/23/1997 |
| 5589387 | Method for preventing the accumulation of inorganic deposits on contact lenses A method for using a composition including a neutralizing system and a sequestering agent which prevents the accumulation of inorganic deposits on contact lenses, particularly when used regularly in a conventional hydrogen peroxide disinfection regimen. T... | 12/31/1996 |
| 5560751 | Method for dyeing an optical component A method for dyeing an optical component such as a lens or filter. A coating of dyeing solution is formed on a surface of a lens and the lens is subjected to a nonuniform heating treatment in dependence on the position within the surface to obtain the des... | 10/01/1996 |
| 5534038 | Tinting hydrogel materials with vat dyes Disclosed are processes for tinting hydrogel materials, such as contact lenses, by dissolving a leuco sulfate ester of a vat dye in an compatible monomer solution, adding an oxidizing initiator to the monomer solution, and oxidizing and polymerizing the m... | 07/09/1996 |
| 5516467 | Process for producing a tinted contact lens A process for producing a tinted contact lens, which includes dissolving a soluble vat dye in a monomer capable of dissolving the soluble vat dye therein, mixing the monomer having the soluble vat dye dissolved therein and other monomers, polymerizing the... | 05/14/1996 |
