Abstract: Provided are ink compositions for making cosmetic contact lenses, as well as cosmetic contact lenses and methods for their preparation and use. The ink composition comprises: (a) a colorant; and (b) a nonreactive hydrophilic polymer.

Abstract: An injection molding apparatus for manufacturing an ophthalmic lens mold having a front surface comprising a lens forming portion and a rear surface, comprises a first molding tool and a second molding tool. The first and second molding tools are movable towards and away from each other between a closed position and an open position. In the closed position the first mold forming portion of the first molding tool and the second mold forming portion of the second molding tool define a cavity between them corresponding in shape to the shape of the ophthalmic lens mold. The surface of the second mold forming portion, at least in a central zone thereof, has a surface roughness Sa in the range of 0.3 ?m to 2 ?m, and a surface roughness Sz in the range of 10 ?m to 50 ?m.

Abstract: An inkjet method for producing a spectacle lens and fluids that can be used in an inkjet method for producing a spectacle lens are disclosed. The inkjet method includes the following steps: a) providing a substrate to be printed on, b) applying to the substrate to be printed on from step a) at least two volume elements applied adjacently and/or adjoining one another, c) transferring the at least two volume elements applied adjacently and/or adjoining one another from step b) into at least one volume composite, d) transferring the at least one volume composite from step c) into at least one homogeneous volume composite, e) transferring the at least one homogeneous volume composite from step d) into at least one final volume composite.

Abstract: A method of manufacturing an ophthalmic lens having at least one optical function includes: a step of additively manufacturing a complementary optical element by depositing a plurality of predetermined volume elements on a predetermined build support, the complementary optical element being configured to provide at least a part of the optical function of the ophthalmic lens, wherein the build support includes at least one added value or adhesive configured to provide to the ophthalmic lens at least one added function. An ophthalmic lens including a build support and a complementary optical element as well as an ophthalmic lens obtained by such a manufacturing method.

Abstract: There is provided an insertion auxiliary tube having a tubular substrate a and a layer b disposed on at least one of an inside or an outside of the tubular substrate a. The layer b includes a polymer including a polysiloxane structure. The polymer includes an acrylic acid component, an acrylic acid ester component, an acrylamide component, or a styrene component and has a particular polar group in a molecule thereof. There are also provided a composition for an insertion auxiliary tube capable of providing the insertion auxiliary tube, a set of the insertion auxiliary tube and an endoscope, an endoscope apparatus including the insertion auxiliary tube and an endoscope, and a method for producing the insertion auxiliary tube.

Abstract: The present invention relates to novel compounds, particularly to compounds comprising a photoactive unit, said novel compounds being particularly suitable for compositions and ophthalmic devices as well as to compositions and ophthalmic devices comprising such compounds.

Abstract: A wettable silicone hydrogel contact lens having a low ionoflux and low evaporation is manufactured by curing a silicone hydrogel polymerizable composition in a contact lens mold comprising front and back lens-forming surfaces, where one of the lens-forming surfaces has a higher polarity than the other lens-forming surface.

Abstract: Various embodiments are directed to an apparatus and methods of forming and/or using an apparatus comprising a plurality of device components. An example method includes geometrically optimizing a periodic or aperiodic device comprising a plurality of device components by optimizing a topology, for each device component, from a starting point to have particular optical properties for a particular optical response. Each device component includes a plurality of geometric structures. The optimization includes selecting the starting point for a continuous profile to have the particular optical properties for the particular optical response, iteratively converging the continuous profile to a discrete profile, and, while iteratively converging to the discrete profile, adjusting edges between boundaries of the device components by accounting for fabrication constraints.

Abstract: A method for producing an optical waveguide by: (a) depositing a first composition: (i) a polysiloxane comprising epoxy and alkenyl groups with refractive index no greater than 1.50, (ii) a compound comprising at least one epoxy group and refractive index no greater than 1.49, and (iii) a polysiloxane having refractive index at least 1.50; (iv) a photo acid generator; (v) a hydrosilylation catalyst, (vi) an inhibitor for hydrosilylation; (b) curing by exposure to ultraviolet light; (c) removing the uncured portion to produce a patterned core layer; (d) after a time from 20 to 300 hours depositing a second composition comprising: (i) a polysiloxane comprising epoxy groups with refractive index no greater than 1.49, and (ii) a compound comprising at least two epoxy groups with a refractive index no greater than 1.49 and an alcohol having refractive index no more than 1.45 (iii) at least one photo acid generator.

Abstract: The invention is related to contact lenses that not only comprise the much desired water gradient structural configurations, but also have a minimized uptakes of polycationic antimicrobials and a long-lasting surface hydrophilicity and wettability even after going through a 30-days lens care regime. Because of the water gradient structural configuration and a relatively-thick, extremely-soft and water-rich hydrogel surface layer, a contact lens of the invention can provide superior wearing comfort. Further, a contact lens of the invention is compatible with multipurpose lens care solutions present in the market and can endure the harsh lens care handling conditions (e.g., digital rubbings, accidental inversion of contact lenses, etc.) encountered in a daily lens care regime. As such, they are suitable to be used as weekly- or monthly-disposable water gradient contact lenses.

Abstract: The present invention provides polyurethanes including a reaction product of components including: (a) an isocyanate functional urethane prepolymer including a reaction product of components including: (i) about 1 equivalent of at least one polyisocyanate; and (ii) about 0.01 to about 0.5 equivalent of at least one polyol having at least 3 hydroxyl groups; and (b) about 0.1 to about 1.0 equivalent of at least one polyol having at least 3 hydroxyl groups; compositions, coatings and articles made therefrom and methods of making the same.

Abstract: A method of preparing and using a contact lens is disclosed. In one step, a light-absorbing dye solution, comprising a light-absorbing dye disposed in a solution, is dispensed onto a contact lens. In another step, the light-absorbing dye is reacted with the contact lens so that the contact lens permanently contains the light-absorbing dye. The transmission of light of a certain wavelength through the contact lens is reduced due to the reacted light-absorbing dye permanently contained within the contact lens.

Abstract: A method of producing freeform lenses for a PSP laser line system having a laser line diode and a set of three freeform lenses aligned along an optical alignment axis, the set of freeform lenses configured to yield a resultant laser line, the method including: (a) calculating lens surfaces for a lens form to fabricate a lens of the lens set therefrom; (b) fabricating a plurality of slices of the lens form, the plurality of slices distributed over a width “SW” of the lens, wherein each the slices has a width dimension “SL”; (c) aligning and constraining together the plurality of slices to fabricate the lens form, and molding a lens using the fabricated lens form; (d) repeating steps (a) to (c) to produce all three lenses of the set of lenses; and (e) integrating the produced lens set into the laser line system; the resultant laser line having a length “L” and a width “W” and a power uniformity evaluated along L.

Abstract: A coated polymer film, such as a coated polyester film, is disclosed. In one embodiment, the coated film may be used as a substrate for digital printing. In one embodiment, the coating contains an anionic anti-static agent comprising a sulphonated copolyester resin. In an alternative embodiment, the coating contains an anti-static agent comprising an organometallic, such as an organo zirconate, in combination with metal oxide particles. The metal oxide particles may comprise nanoparticles. In one embodiment, the coating can further contain a print enhancing agent and an adhesion promoter.

Abstract: A hydrophilic intraocular lens (IOL) with high refractive index comprising at least one copolymer comprising: ((a) a first monomeric subunit comprising (i) a polymerized (meth)acrylate group and an aliphatic carbon moiety comprising at least two hydroxyl substituents or (ii) a polymerized (meth)acrylamide group, (b) a second monomeric subunit different from the first monomeric subunit comprising a polymerized (meth)acrylate group, at least one side group comprising (i) an aryloxy moiety comprising at least one halogen, and (ii) an aliphatic carbon moiety linking the aryloxy moiety with the polymerized (meth)acrylate group, wherein the aliphatic carbon moiety comprises optionally at least one hydroxyl substituent, (c) a third monomeric subunit different from the first and second monomeric subunits comprising a polymerized (meth)acrylate group and at least one alkoxyalkoxyalkyl side group.

Abstract: An imaging device includes a grin lens having a proximal end and a distal end, wherein the grin lens is made from a polymeric material, an optical fiber having a distal end coupled to the proximal end of the grin lens, and a beam director coupled to the distal end of the grin lens, wherein the beam director is configured to direct light at an angle relative to a longitudinal axis of the optical fiber.

Abstract: The invention relates to a method of making a contact lens, the method comprising identifying the eccentricity of a lens produced in a mold half, lathing the lens and adjusting the path of the lathe to take account of the eccentricity, and a computer program for controlling the lathe.

Abstract: A laminated glazing includes at least one outer glass sheet and a polymeric sheet, in which the outer glass sheet has a thickness of not more than 2 mm and a coefficient of thermal expansion of less than 70×10?7 K?1.

Abstract: Aspects of the disclosure are directed to milling a nose of a first shield of a blade to leave at least one strip of the first shield coupled to a blade body, subsequent to the milling, applying a cryogenic technique to the blade to weaken a bond between the first shield and the blade body, and subsequent to the applying of the cryogenic technique, removing the at least one strip of the first shield from the blade body.

Abstract: Ophthalmic device molds made from at least one water-soluble vinyl alcohol copolymer, ophthalmic devices such as ocular inserts and contact lenses and including silicone hydrogel devices formed using these molds, packaged ophthalmic devices present in a solution comprising the at least one water-soluble vinyl alcohol copolymer, and related methods are described. The methods of manufacturing ophthalmic devices can use wet demolding processes, or wet delensing processes or both wet demolding and wet delensing processes involving dissolving the molds in water or an aqueous solution.

Abstract: Acrylate-acrylamide copolymers are disclosed. They are rigid and glassy in dry state at room temperature (from about 23° C. to about 28° C.), but are soft and very deformable and have a high refractive index, a high glistening resistance and a low aging-related surface light scattering in fully hydrated state. They are particularly suitable for making wet-packed intraocular lenses (IOLs) which can be delivered through sub 2.0 mm incisions.

Abstract: A container (1) for accommodating an ophthalmic lens during a lens treatment process has a longitudinal axis (11) and comprises as separate elements a containment element (2), a mounting element (3), and a retaining element (4). The containment element (2) comprises a tubular section (21) and a bottom (22) arranged at a distal end of the tubular section (21), the bottom (22) protruding convexly towards the outside at the distal end of the tubular section (21) and being provided with a number of apertures (23, 24), the tubular section (21) at a proximal end (25) thereof having a latch (26) protruding from the proximal end (25) of the tubular section (21) towards the mounting element (3). The mounting element (3) comprises a sidewall (31) extending along the longitudinal axis (11) of the container (1), the sidewall (31) being provided with recesses or orifices (32) which are in engagement with the latch (26) of the containment element (2).

Abstract: The layered generation of at least one volume grating in a recording medium by way of exposure, the recording medium having at least one photosensitive layer which is sensitized for a presettable wavelength of the exposure light. Each volume grating is generated in the recording medium by at least two wave fronts of coherent light capable of generating interference, the wave fronts being superposed in the recording medium at a presettable depth, at a presettable angle and with a presettable interference contrast. The depth and the thickness of the refractive index modulation and/or transparency modulation of a volume grating in the recording medium is controlled by depth-specific control of the spatial and/or temporal degree of coherence of the interfering wave fronts in the direction of light propagation.

Abstract: The purpose of the present invention is to provide: an aqueous binder having high adhesiveness, that in particular does not exhibit oxidative degradation in an electrode environment, and having little environmental load; and an electrode and a battery that use same. Disclosed is a battery electrode binder containing: (A) a constituent unit derived from a monomer having a hydroxyl group; and (B) a constituent unit derived from a polyfunctional (meth)acrylate having no more than 5 functions. An electrode is prepared using this binder and is used in a battery such as a lithium-ion secondary battery.

Abstract: Methods of manufacturing a contact lens are provided. Such methods include using an adjustable mandrel to fixedly retain a single mold section carrying a polymerized contact lens product and delensing the contact lens product from the single mold section. Adjustable mandrels are also provided.

Abstract: A method for manufacturing ophthalmic lenses, e.g. contact lenses, in particular soft contact lenses, comprises the steps of molding in a high volume manufacturing process a plurality of lenses (CL) having different properties, and transferring the respective molded lenses (CL) that have the same properties to a respective intermediate buffer (1;1a) so as to store therein a bulk of lenses (CL) having the same properties.

Abstract: The invention relates to a copolymer which can be obtained by free-radical copolymerization of one or more urethane-based, polysiloxane-containing macromonomers and one or more further free-radically polymerizable comonomers. Processes for preparing the copolymer and its use as additive in coating compositions and plastics and as wetting agent and dispersant in homogeneous dispersions are also described.

Abstract: The present invention relates to a process for manufacturing an object made of biocompatible hydrogel by molding a polymer solution in a mold made of a particular material, said process comprising the following steps: (i) preparation of a polymer solution by dissolving a copolymer of acrylonitrile and of an olefinically unsaturated co-monomer bearing anionic groups in an aprotic solvent, optionally in the presence of a nonsolvent, (ii) shaping and the start of gelation of the polymer solution obtained at the end of step (i) in a mold consisting of a material containing said nonsolvent or of a material permeable to said nonsolvent, (iii) immersion of the object undergoing gelation resulting from step (ii) in a nonsolvent. The present invention also relates to the objects made of biocompatible hydrogel resulting from this process such as, for example, intracorneal lenses (or lenticules) implantable in the cornea or any other implants usable in ophthalmology.

Abstract: A system/method allowing hydrophilicity alteration of a polymeric material (PM) is disclosed. The PM hydrophilicity alteration changes the PM characteristics by decreasing the PM refractive index, increasing the PM electrical conductivity, and increasing the PM weight. The system/method incorporates a laser radiation source that generates tightly focused laser pulses within a three-dimensional portion of the PM to affect these changes in PM properties. The system/method may be applied to the formation of customized intraocular lenses comprising material (PLM) wherein the lens created using the system/method is surgically positioned within the eye of the patient. The implanted lens refractive index may then be optionally altered in situ with laser pulses to change the optical properties of the implanted lens and thus achieve optimal corrected patient vision. This system/method permits numerous in situ modifications of an implanted lens as the patient's vision changes with age.

Abstract: A 3-d stereoscopic viewing lens which the retarder film is made of a PVA film. A 3-D stereoscopic viewing lens having a linear polarized film, one or more lens substrate layers, and an epoxy layer. A process of making retarder film including mounting a PVA film to an assembly line; wetting, cleaning, and washing the PVA film through said assembly line; softening, expanding and stretching the PVA film's x-axis through said assembly line; adding gap filling agent to the PVA film; stretching the PVA film's y-axis through a width frame holder and as a result transforming the PVA film into a retarder film.

Abstract: Silicone hydrogel ophthalmic devices, such as ocular inserts and contact lenses, formed in direct contact with molds comprising at least one vinyl alcohol copolymer and related methods are described. The at least one vinyl alcohol copolymer of the molds is a vinyl alcohol copolymer other than an ethylene-vinyl alcohol copolymer. The methods of manufacturing ophthalmic devices can use dry or wet demolding processes, or dry or wet delensing processes.

Abstract: The subject invention relates to a method of preparing a biocompatible polymer comprising epsilon-linked L-lysine having free alpha-amino and carboxy functions. The invention further encompasses the resulting biocompatible polymer and articles made from the polymer, in particular contact and intraocular lenses.

Abstract: A method of determining conditioning pulse parameters for an optical element includes directing a pump pulse to impinge on the optical element and directing a probe pulse to impinge on the optical element. The method also includes determining a first time associated with an onset of electronic excitation leading to formation of an absorbing region of the optical element and determining a second time associated with expansion of the absorbing region of the optical element. The method further includes defining a turn-off time for a conditioning pulse between the first time and the second time. According to embodiments of the present invention, pulse shaping of the conditioning pulse enables laser conditioning of optical elements to achieve improvements in their laser induced damage threshold.

Abstract: The present technology provides an illustrative method for preparing fibers with desirable optical characteristics. The method includes providing a fiber that comprises a core layer and a cladding layer located around the core layer. The method further includes applying a nanostructure template to the cladding layer to form one or more photonic nanostructures having nanostructure scales and compressing the core layer to cause the core layer to bulge and form air gaps between the core layer and the one or more photonic nanostructures.

Abstract: A silicone contact lens has a radial cross-section of the inner face, the rim portion contour of which is convex between a point of inflection and the outer edge. For its manufacture, a silicone precursor is brought between a female and a male mold and is polymerized, and the polymerized contact lens is released from the mold by means of a liquid swelling same.

Abstract: The present invention discloses methods and apparatus for methods and apparatus for manufacturing an Ophthalmic Lens with passive event coloration mechanisms, which may not require a power source. In some embodiments, the passive event coloration mechanisms may be combined with Rigid Inserts or Media Inserts, wherein the inserts may provide additional functionalities.

Abstract: This invention includes a wettable biomedical device containing a high molecular weight hydrophilic polymer and a hydroxyl-functionalized silicone-containing monomer.

Abstract: The present disclosure provides systems and methods for fabricating a patterned lens through hot stamping techniques. In certain example embodiments, a lens material is placed in a heat press. The heat press includes at least one shim having a patterned surface. The shim is pressed onto the lens material with the patterned surface contacting the lens material. The heat press heats the lens material to malleability and the pattern of the shim is pressed into the lens material. The lens material is then cooled and a patterned lens is fabricated.

Abstract: A molded dichroic mirror and method of manufacture thereof. The dichroic minor may be molded from polysiloxane or lithia potash borosilicate and may be coated to reflect an infrared signal and configured to transmit a radio frequency signal between 33 GHz and 37 GHz.

Abstract: This invention includes a wettable biomedical device containing a high molecular weight hydrophilic polymer and a hydroxyl-functionalized silicone-containing monomer.

Abstract: To provide a medical device which is excellent in wettability and lubricity and is also scarcely broken since it is soft, by a medical device in which a layer made of an acidic polymer and a basic polymer is formed on at least a part of a surface of a low water content soft base material, the low water content soft base material containing, as a main component, a copolymer containing a monofunctional monomer component M having one polymerizable functional group and one silicone moiety per molecule.

Abstract: Silicone hydrogel contact lenses having ophthalmically acceptable surface wettabilities are obtained from pre-extracted polymerized silicone hydrogel contact lens products having relatively large amounts of removable or extractable materials. The silicone hydrogel contact lenses can be obtained from non-polar resin based contact lens molds and without surface treatments or an interpenetrating polymeric network of a polymeric wetting agent. Related lens products, polymerizable compositions, and methods are also described.

Abstract: The instant invention pertains to a method and a fluid polymerizable composition for producing contact lenses with improved lens quality and with increased product yield. The method of the invention involves adding a water soluble and/or water dispersible quaternary ammonium cationic group containing silicone surfactant into a fluid polymerizable composition including a lens-forming material in an amount sufficient to reduce an averaged mold separation force by at least about 30% in comparison with that without the water soluble and/or water dispersible quaternary ammonium cationic group containing silicone surfactant.

Abstract: Cellulose derivative optical retardation film with suitable birefringent characteristics to enhance wide view performance upon use in liquid crystal devices (LCD), especially in vertically aligned (VA) type LCDs. Method of manufacturing such a cellulose derivative optical retardation film and its use in a liquid crystal display or an imaging device.

Abstract: The invention provides an amphiphilic siloxane-containing vinylic monomer which comprises one sole ethylenically unsaturated group and a siloxane-containing group covalently linked to the ethylenically-unsaturated group through a hydrophilic linker. The present invention is also related to a polymer, an actinically-crosslinkable silicone-containing prepolymer, a silicone hydrogel polymeric material, or a silicone hydrogel contact lens, which comprises monomeric units derived from an amphiphilic siloxane-containing vinylic monomer of the invention. In addition, the invention provides a method for making silicone hydrogel contact lenses using a water-based lens-forming formulation comprising an amphiphilic siloxane-containing vinylic monomer of the invention and/or an actinically-crosslinkable silicone-containing prepolymer of the invention.

Abstract: A packaged, sterilized intraocular lens prepared by a process comprising providing a hydrophobic acrylic, or low water acrylic, intraocular lens and positioning the acrylic lens in a lens enclosure with an aqueous solution to provide a lens package. The lens package is then heated to a temperature sufficient for sterilization, however, the heating of the lens package must begin before the acrylic lens reaches an equilibrated, hydrated state following contact of the lens with the aqueous solution. The resulting sterilized acrylic intraocular lens will have less than sixty percent of total volume of disc-like features, or less than forty percent of total volume of water vacuoles, after 60 days following sterilization compared to an acrylic lens of the same composition, which was sterilized under the same conditions, but in an equilibrated, hydrated state.

Abstract: There is described a method of separating excess lens forming material from a molded ophthalmic lens, in particular a contact lens. After polymerization and/or cross-linking of a lens forming material (P) within a mold cavity (4) of a mold (1) comprising female and male mold halves (2, 3) to form an ophthalmic lens non-polymerized and/or non-cross-linked lens forming material is flushed away from the mold halves (2, 3) with a jet of a fluid flushing medium, such as, e.g., water or a solvent or an inert gas. Subsequently the molded lens is dried. In accordance with the invention the flushing is accomplished with the mold halves (2, 3) still in the closed position. There is also described an apparatus for carrying out the method.

Abstract: The present invention relates to improved contact lens products which not only have initial insertion comfort but also are comfortable to wear for more than about 6 hours. The invention is achieved by packaging and storing a hydrogel lens with two or more leachable polymeric lubricants incorporated therein in a relatively viscous packaging solution including a relatively low molecular weight polyethylene glycol (PEG) and a viscosity-enhancing hydrophilic polymer. The present invention also provides methods for making contact lens products of the invention.

Abstract: The present invention is drawn to an optical article comprising (a) a transparent optical substrate and (b) a transparent coating, said transparent coating being the outermost coating of the optical article and consisting essentially of a polythiol-ene matrix obtained by curing a liquid monomer mixture comprising at least one polyfunctional thiol and at least one polyfunctional allyl monomer, said cured polythiol-ene matrix having a glass transition temperature comprised in the range of from 40° C. to 70° C., and from 0.5 to 7% by weight of conductive mineral colloids homogeneously dispersed therein. It is also drawn to a method for preparing such an optical article and to a method for repairing scratches on such an optical article by heating.

Abstract: The present invention provides a method for preparing a medical device, preferably a contact lens, having an antimicrobial metal-containing LbL coating on a medical device, wherein the antimicrobial metal-containing LbL coating comprises at least one layer of a negatively charged polyionic material having —COOAg groups and/or silver nanoparticles formed by reducing Ag+ ions associated with the —COO? groups of the negatively charged polyionic material. In addition, the present invention provides a medical device prepared according to a method of the invention.