Abstract: A method is described for manufacturing an optical element (13) made of thermosetting plastic material comprising the steps of: a) positioning in a mould a first self-supporting layer (6) made of partially cross-linked thermosetting plastic material including reactive functional groups; b) forming, on at least one surface of the self-supporting layer (6), a second layer (12) including: i) a polymerisable material in liquid phase including: prepolymers and/or monomers including reactive functional groups capable of chemically reacting with the reactive functional groups of the self-supporting layer made of partially cross-linked thermosetting plastic material, a reactive component including functional groups capable of chemically reacting with the reactive functional groups of the prepolymers and/or of the monomers and optionally with the reactive functional groups of the self-supporting layer (6) made of partially cross-linked thermosetting plastic material; ii) at least one element adapted to modify the spec

Abstract: The present invention provides a method of producing a polarized lens capable of obtaining a high-quality polarized lens used for sunglasses and the like. More specifically, the present invention is a method of producing a polarized lens, comprising the steps of obtaining a lens made of resin having a polarizing film on a convex surface thereof, masking the convex surface thereof, and dyeing a non-masked surface thereof.

Abstract: A process for producing a plastic lens comprises, using a mold constituted with a pair of mold members facing each other and a plastic gasket which fixes the mold members to form a cavity and has an inlet for injecting a composition of a material monomer into the cavity, injecting the composition of a material monomer into the cavity through the inlet of the plastic gasket, sealing the inlet of the plastic gasket and, thereafter, conducting polymerization, wherein the inlet of the plastic gasket is sealed by the ultrasonic welding. No striae is formed in the produced lens, and the operations of the production can be performed efficiently at a high speed.

Abstract: Compounds that absorb ultraviolet light 380 nm to 400 nm range but avoid absorption in the blue light range, thereby imparting yellowness, i.e., 410-420 nm have suitable refractive characteristics useful in the preparation of optical resins or plastics suitable, for example, for the manufacture of ophthalmic lenses. Methods for making the compounds, optic lenses containing the compounds, and methods for making these are also described.

Abstract: The steps of producing a micro lens comprises the steps of forming a resin layer on a substrate in a desired pattern, causing the resin layer to absorb from its surroundings solvent which dissolves the resin so that the resin layer has fluidity and the surface of the resin layer becomes convex under the surface tension, and then drying the solvent.

Abstract: Devices and components that can interact with or modify propagation of electromagnetic waves are provided. The design, fabrication and structures of the devices exploit the properties of reactive composite materials (RCM) and reaction products thereof.

Abstract: Devices and components that can interact with or modify propagation of electromagnetic waves are provided. The design, fabrication and structures of the devices exploit the properties of reactive composite materials (RCM) and reaction products thereof.

Abstract: The present invention is directed to the incorporation of melanin in an optical article with polarization properties. Such an article includes a first polymer layer containing a polarizing agent, a second polymer layer containing melanin and wherein the second polymer layer is disposed upon the first polymer layer.

Abstract: An article of polarized eyewear has a lens with a first substrate lens material transparent to visible light and a pattern of elongated structures formed from at least a second material having a complex index of refraction that is deposited onto a curved surface of the first substrate lens material. The pitch between adjacent elongated structures is less than 300 nm and the width of each elongated structure is less than 90% of the pitch.

Abstract: A light fixture has an array of light emitting diodes arranged on a substrate, an array of lenses arranged adjacent the diodes, each lens corresponding to a diode, and having a center, the array of lenses arranged such that the each lens center is offset from a location of the diode. A light fixture has an array of light emitting diodes arranged in a x-y grid on a substrate, and an array of lenses arranged adjacent the array of light emitting diodes, each lens corresponding to a diode and having a center, the array of lenses arranged such that each lens center is offset a distance along a location axis of the diode. A method includes providing a substrate, forming an array of light emitting diodes on the substrate, and arranging an array of lenses adjacent the diodes, such that each lens corresponds to one diode, the lenses arranged such that a center of each lens is offset from a location of each diode.

Abstract: Method of making eyeglass lens are disclosed where the lens are made of layers which include an outer, convex hard coating, a layer of hard epoxy, a layer of polyurethane mixture film, a PVA film wherein the color is dipped in water with Photochromic powder, a layer of soft epoxy, a base material, and an inner, concave hard coating. Other methods configuration of lens also include an outer, convex hard coating, a layer of hard epoxy, a layer of polyurethane mixture film, a PVA film wherein the color is dipped in water without color dye, a layer of soft epoxy, a base material, and an inner, concave hard coating.

Abstract: A method for manufacturing an optical element wafer according to the present invention, in which a plurality of optical elements are arranged in two dimensions, includes: a replica forming step of forming a replica, in which an optical element shape is formed on a front surface side, in each of a plurality of recesses formed in a base; a stamper mold forming step of forming a stamper mold using the optical element shape of the replica; and an optical element wafer forming step of transferring the optical element shape to an optical element material using the stamper mold to form an optical element wafer.

Abstract: A method of forming a transferring surface onto a producing die to produce an optical element, wherein the transferring surface transfers an optical surface onto the produced optical element, the method comprising the steps of: cutting a material so as to form the transferring surface with a curvature; wherein the material has a hardness not smaller than Rockwell hardness HRA 80 or Vickers hardness Hv 1000 and the cutting step is conducted with a critical cutting-in depth of 5 ?m or less for the material.

Abstract: A method of in-mold coating utilizing an injection molding machine oriented to a horizontal parting line. At the beginning of the cycle the mold opens and a charge of liquid coating solution is deposited onto the lower mold insert. A ophthalmic wafer is deposited on the coating to spread it across the insert surface. The mold is closed and a pre-cure phase elapses before the thermoplastic resin is injected into the mold cavity above the wafer. The process provides coated and functionally enhanced lenses upon ejection from the molding machine.

Abstract: Various embodiments of the present invention provide systems, methods, and processes for constructing a contact lens. In one embodiment, a contact lens assembly is provided, comprising: a curved polymer polarizer with an aperture; a lenslet disposed inside the aperture, wherein the lenslet enables imaging near objects; and a filter attached to the lenslet. In further embodiments, a method for fabricating a flexible contact lens is provided, comprising: fabricating an element having an extrusion; providing a front concave mold, wherein the front mold has an intrusion to accommodate the extrusion of the optical element; affixing the extrusion of the optical element to the intrusion of the front mold; attaching a back convex mold to the front concave mold, thereby forming a mold cavity; and filling the mold cavity with a pre-polymerized liquid, whereby upon polymerization, the pre-polymerized liquid forms the flexible contact lens and the optical element is partially encapsulated within the lens.

Abstract: A method of manufacturing a biopolymer photonic crystal includes providing a biopolymer, processing the biopolymer to yield a biopolymer matrix solution, providing a substrate, casting the matrix solution on the substrate, and drying the biopolymer matrix solution to form a solidified biopolymer film. A surface of the film is formed with a nanopattern, or a nanopattern is machined on a surface of the film. In another embodiment, a plurality of biopolymer films is stacked together. A photonic crystal is also provided that is made of a biopolymer and has a nanopatterned surface. In another embodiment, the photonic crystal includes a plurality of nanopatterned films that are stacked together.

Abstract: The present invention relates to a radiation curable resin composition which comprises epoxy (meth)acrylate, a monofunctional (meth)acrylate, a bifunctional (meth)acrylate having a specific structure, and a bifunctional (meth)acrylate obtained from an aliphatic dihydric alcohol having an oxyalkylene structure and (meth)acrylic acid and further contains a thermoplastic resin, thereby causing satisfactory adhesion to plastic substrates, sufficient shape retention, and excellent shape recovery properties, and satisfaction in moldability including casting efficiency and shape reproducibility, as well as a high refractive index and appropriateness for use as a lens sheet.

Abstract: A method for laminating a functional film on to a plastic injection molded lens. An outer layer of the film is selected to perform an HMA-type function when subjected to the heat and pressure of the mold. After forming the lens, the mold is open and the film is loaded in to the empty insert. The residual heat and pressure bonds the film via the HMA to the lens, in a press lamination process. A functionally enhanced lens having a film intimately laminated on to one side.

Abstract: High productivity polarizing lens that is impact-resistant, and is not prone to warping or iridescent patterning and other color irregularities. Polarizing lens (1) includes a polarizing sheet (2) in which a pair of protective films (11) and (12) is laminated on both sides of a polarizing film (10), and a lens base material layer (3) integrally bonded on a rear side of the polarizing sheet (2), the lens base material layer (3) being composed of polyurethane. Manufacturable by: bending the polarizing sheet (2) at a predetermined curvature; fitting the polarizing sheet (2) in a mold recessed with a cavity contoured to correspond to the bent polarizing sheet so that its front side runs along the cavity; and filling and injection-molding thermoplastic polyurethane into the mold in which the polarizing sheet (2) has been fit, to form the lens base material layer (3) on the polarizing sheet (2) rear side.

Abstract: A protective film (10) is eccentrically adhered to a concave-side transfer surface (3b) of a first mold (3) which is used in a plastic lens forming mold, and part (10a) of the peripheral portion of the protective film is projected laterally from the mold (3). The protective film (10) comprises a film layer with an outer diameter smaller than that of the first mold (3), and an adhesive layer with a relatively low adhesive strength which is formed on one surface of the film layer.

Abstract: An eyeglass lens is made of layers which include an outer, convex hard coating, a layer of hard epoxy, a PVA film, a layer of soft epoxy, a layer of adhesive, a base material, and an inner, concave hard coating. The major steps in producing the lens are to 1: prepare a clean, soft PVA film; 2: form the PVA film into the desired curved shape using a convex mold; 3: add hard epoxy to the outer, convex side of the PVA film; 4: add soft epoxy to the inner, concave side; 5: add the base material to the inner, concave side; and 6: harden and package the lens.

Abstract: Methods and apparatus to correct a curved Petzval focusing surface to a plane using a convex lens, a concave lens, and a space arranged between the curved side of the convex lens and the curved side of the concave lens. The method and apparatus may also include a Fresnel lens arranged between the concave lens and a pixel array.

Abstract: The invention concerns a method for producing a lens (6), one side of which (9, 10) has a complex multifocal or progressive or regressive multifocal surface (7). This method comprises the following steps: 1—forming a mold (1) composed of two parts (2, 3), each having an imprint (4, 5); 2—machining at least one of the imprints (4, 5), via a first machining with a digitally controlled, micrometrically precise machine using a computer file of tool movement points defining a complex surface (7), and a nanometric finish machining with a digitally controlled diamond turning tool; 3—injecting a thermoplastic polymer-based material into the mold (1). The invention also concerns a complex lens made of injected thermoplastic polymer, particularly methyl polymethacrylate.

Abstract: A method and apparatus providing a lens master device and use of the same to form a lens template and/or a lens structure. The method includes obtaining a plurality of individual lens masters, each of which has a shaped portion defining at least a portion of a lens structure to be formed. The lens masters are affixed onto a supporting structure to form a lens master device.

Abstract: The invention concerns a method for making a transparent optical element (11), which consists in first producing an optical component (10) having at least a transparent assembly of cells (15) juxtaposed parallel to a surface of the component, each cell being hermetically sealed and containing a substance with optical property. Said optical component is then cut out along the contour defined on its surface, corresponding to a shape specific for the optical element. The cells of the assembly have dimensions ranging between 100 ?m and 500 ?m parallel to the surface of the component.

Abstract: The invention relates to a thermoset plastic material, comprising a three-dimensional matrix containing sulphur atoms and at least one anti-plasticizing additive which is unreactive toward said matrix.

Abstract: A method is disclosed of implementing lens elements or lens arrays having dimensions ranging from a few centimeters down to the micro-scale or nano-scale using the surface tension of the lens material in a molten state to allow the curved shape of the lens to be precisely defined. The method has useful application in the fabrication of lens elements and lens arrays out of a large variety of material types, including elemental materials, as well as compound materials and alloys. The method also allows the implementation of lenses having far superior surface smoothness compared to other approaches, as well as very accurate lens shapes. The method allows the making of high quality lenses and lens arrays, wherein the diameter of the lenses are on the order of a few microns or less. Convex, concave, plano-convex, plano-concave, compound lenses, and many other types of lens shapes can be implemented using the method of the present invention.

Abstract: A method for laminating a functional film on to a thermoplastic injection molded lens. A thermally curable glue is deposited on the lens while it is still in the mold. A functional film is introduced and the mold is closed again. The heat from the mold and the clamping pressure thermoform the film and cure the glue, in a lamination process. A functionally enhanced lens having a film intimately laminated on to one side.

Abstract: A method of molding provides two molds (102, 104) formed of semiconductor material. The molds (102, 104) have substantially planar working faces (108, 110) into which recesses (106, 112) are formed. In use the molds (102, 104) are pressed together with the working faces (108, 110) opposed so the recesses (106, 112) form mold cavities. The molds (102, 104) only contact each other in the plane of the working faces (108, 110). A thermoplastic sheet placed between the molds is heated to deform the sheet into the mold cavities.

Abstract: Method of making eyeglass lens are disclosed where the lens are made of layers which include an outer, convex hard coating, a layer of hard epoxy, a laminated PVA film where one of the layer of the PVA film is dipped in high contrast dye, a layer of soft epoxy, a base material, and an inner, concave hard coating. Other methods configuration of lens also include a camouflaged patterned lens, a layer of hard epoxy, a polyurethane mixture, a laminated PVA film where one of the layer of the PVA film is dipped with high contrast dye, a layer of soft epoxy, a base material, and an inner, concave hard coating.

Abstract: The inventive device includes a first shell holder (6) for fixing a first shell (12), a second shell holder (27) for fixing a second shell (29), a first support (1) on which the first shell holder (6) is mounted and a second support (2) on which the second shell holder (27) is mounted, the first (1) and second (2) supports being pivotable with respect to each other. When the first (1) and second (2) supports are in a first relative position thereof they are arranged oppositely to each other, thereby bringing the first (12) and second (29) shells into a predetermined relative moulding position thereof. When the first (12) and second (29) shells are brought into the second relative position thereof, the first (1) and second (2) supports are removed from each other by pivoting motion.

Abstract: A method for making a plurality of lenses, is provided. Each of the lenses has an optical structure on at least one side thereof. The method includes steps of: providing a lens material sheet having a first surface and an opposing second surface; providing a press-molding roller, the press-molding roller having a circumferential surface and a plurality of molding structures formed thereon, the molding structures having molding surfaces to form the optical structures of the lenses; press-molding one of the first and second surfaces of the lens material sheet by applying and rolling the press-molding roller thereon, thereby forming a plurality of the optical structures on the lens material sheet; and dicing the lens material sheet into a plurality of the lenses each having one of the optical structures on the at least one side thereof.

Abstract: There is provided a polarizing lens for sunglasses capable of effectively preventing effectively light from falling on eyes outside the lens at the side of the tail of eyes in the polarizing lens for sunglasses of spherical shape.

Abstract: An optical part for a camera comprising a substrate made of a polyolefin plastic and an optical resin layer placed on the substrate, wherein the surface of the substrate is provided with a polar group and the optical resin layer is formed from a resin composition including a fluorene compound having a (meth)acryloyl group.

Abstract: A mold for molding a product in a cavity formed by closing the mold includes a first half; a second half; and a plurality of aligning members which come in contact with each side circumferential surface of the first half 100 and the second half at least in three directions, when the mold is closed. After the mold is closed, at least one of the aligning members is moved to contact the aligning member with the each side circumferential surface of the first half and the second half, which enables a center axis alignment between the first half and the second half.

Abstract: A solid state, compression method for fabricating lenses, lens blanks, and lens components from materials ground into fine powders having mechanical properties the make them capable of being formed into cohesive monolithic masses that are low in scattering. The fine powders may be admixtures of host matrix materials and others which, when combined, provide preferred optical properties such as index and dispersion. Parts possessing transmission from within the range from the ultraviolet to the infrared are possible. The method is particularly suited to low temperature formation of aspheric lenses transmissive in the near and far IR.

Abstract: A method of making a printed product having an optical effect based on light refraction has the steps of applying an embossable coating to face of a substrate in an image zone, embossing an optical structure in the embossable coating, curing the embossed coating, and printing an image on the substrate in the image zone.

Abstract: Optical-quality polarized parts and methods for manufacturing the optical parts are disclosed. The optical-quality polarized parts comprise a high impact, lightweight, high optical quality polyurethane construct and a polarizer bonded to the construct. The construct may be a lens substrate wherein the polarizer is integrally bonded at or near the front surface of the lens substrate. A sidefill gasket may be used to support and position the polarizer within a mold cavity for reproducibly forming the optical part. The polarizer may comprise a polyethylene terephthalate film or a laminated polyvinyl alcohol film or wafer. The polarized optical part- has improved impact resistance over conventional thermoset resin parts, as well as better optical properties than similarly impact-resistant polycarbonate constructs.

Abstract: Identity document comprising a data medium with data. These data comprise an image of a face. This image consists of two component images that are observed at different angles. By simultaneously viewing the two images, the person studying the identity document can obtain further information about the face. This is possible because the two images are applied at a relatively small angle of 5° to 20°.

Abstract: A method of manufacturing an optical sheet includes: discharging a liquid droplet discharged to one side surface of a sheet substrate; and curing the liquid droplet so that a protrusion is formed in the one side surface to allow light from the one side surface to be refracted and emitted, wherein a supporting substrate that supports the sheet substrate is adhered to another side surface of the sheet substrate before the liquid droplet is discharged.

Abstract: A lens molding gasket comprising one integral membrane serving as a mold shell, and a seating for a removable mold shell.

Abstract: A manufacturing method of a minute structure having fine structures on opposing inner surfaces, includes the steps of forming a first pattern in a surface of a first layer, forming a sacrificial layer on the patterned surface of the first layer, forming a second pattern on a surface of the sacrificial layer, forming a second layer on the sacrificial layer and a portion of the surface of the first layer, and removing a member constituting the sacrificial layer. In the step of forming the first pattern on the first layer and the step of forming the second pattern on the sacrificial layer, the patterns are formed using the same alignment marks as references. This manufacturing method can realize highly accurate alignment even when plural lenses or DOEs are used.

Abstract: Described are contact lenses having photochromic materials within the central or pupillary area of the lens and methods for manufacturing such lenses. In one method, a photochromic amount of at least one photochromic material is added to the pupillary region of a casting mold containing a polymerizable monomer that can be at least partially cured before and/or after the addition. Another method involves providing an amount of polymerizable photochromic monomer for the pupillary region and an amount of polymerizable non-photochromic monomer for the remainder of the contact lens in a casting mold. The photochromic and non-photochromic monomers can differ by their degree of polymerization, viscosity and/or density.

Abstract: Method of making eyeglass lens are disclosed where the lens are made of layers which include an outer, convex hard coating, a layer of hard epoxy, a PVA film wherein the color is coated in the peripheral portion, a layer of soft epoxy, a base material, and an inner, concave hard coating. Other methods configuration of lens also include a camouflaged patterned lens, a layer of hard epoxy, a polyurethane mixture, a PVA film wherein the color is coated in the peripheral portion, a layer of soft epoxy, a base material, and an inner, concave hard coating.

Abstract: Method of making eyeglass lens are disclosed where the lens are made of layers which include an outer, convex hard coating, a layer of hard epoxy, a PVA film wherein the color is dipped in water without color dye, a layer of soft epoxy, a base material, and an inner, concave hard coating. Other methods configuration of lens also include a camouflaged patterned lens, a layer of hard epoxy, a polyurethane mixture, a PVA film wherein the color is dipped in water without color dye, a layer of soft epoxy, a base material, and an inner, concave hard coating.

Abstract: Method of making eyeglass lens are disclosed where the lens are made of layers which include an outer, convex hard coating, a layer of hard epoxy, a layer of polyurethane mixture film, a PVA film wherein the color is dipped in water with Photochromic powder, a layer of soft epoxy, a base material, and an inner, concave hard coating. Other methods configuration of lens also include an outer, convex hard coating, a layer of hard epoxy, a layer of polyurethane mixture film, a PVA film wherein the color is dipped in water without color dye, a layer of soft epoxy, a base material, and an inner, concave hard coating.

Abstract: Method of making eyeglass lens are disclosed where the lens are made of layers which include an outer, convex hard coating, a layer of hard epoxy, a laminated PVA film where one of the layer of the PVA film is coated in the peripheral portion, a layer of soft epoxy, a base material, and an inner, concave hard coating. Other methods configuration of lens also include a camouflaged patterned lens, a layer of hard epoxy, a polyurethane mixture, a laminated PVA film where one of the layer of the PVA film is coated in the peripheral portion, a layer of soft epoxy, a base material, and an inner, concave hard coating.

Abstract: A method is provided of forming a biomedical device in a casting mold which has an anterior mold section and a posterior mold section, wherein one of the mold sections includes a plurality of radially extending ribs and the remaining mold section includes an annular shoulder for engaging an outer end of the ribs to define a mold cavity. The method includes engaging the mold sections along a peripheral seal of the mold cavity and a plurality of circumferentially spaced contact points on a shoulder of one of the mold sections. Cured excess material bonds to the ribs of the one mold section and provides repeatable retention and location of the excess material after formation of the biomedical device.

Abstract: Method of making eyeglass lens are disclosed where the lens are made of layers which include an outer, convex hard coating, a layer of hard epoxy, a laminated PVA film where one of the layer of the PVA film is coated with Photochromic powder, a layer of soft epoxy, a base material, and an inner, concave hard coating. Other methods configuration of lens also include a camouflaged patterned lens, a layer of hard epoxy, a polyurethane mixture, a laminated PVA film where one of the layer of the PVA film is coated with Photochromic powder, a layer of soft epoxy, a base material, and an inner, concave hard coating.

Abstract: This invention discloses improved mold parts for ophthalmic lenses fashioned from a first thermal plastic resin compounded with a second thermal plastic resin resulting in a thermal plastic compound with a deionized water contact angle that is greater than the deionized water contact angle of either the first thermal plastic resin or the second thermal plastic resin. The mold parts can be used in manufacturing processes, such as, for example: continuous, in-line or batched processes.