Class / Patent application number | Description | Number of patent applications / Date published |
264100310 | Light polarizing article or holographic article | 72 |
20080230933 | OPTICAL ELEMENT AND METHOD FOR MANUFACTURING THE SAME - The present invention provides an optical element capable of improving the adhesive property between a refractive index anisotropic layer and an alignment property providing layer for. providing alignment property to the refractive index anisotropic layer and further improving the endurance of each of the layers. | 09-25-2008 |
20110024928 | Patterned volume diffuser elements - The present invention provides a method for manufacturing an optical diffuser element comprising: a) inserting striping shims in at least one flow passage of a multi-manifold extrusion die; b) extruding a first layer of polymer with light scattering particles through the flow passage with the striping shim to create linear domains of varying diffusion; c) extruding a second layer of polymer with less diffusion than the linear domains of varying diffusion through the manifold without a striping shim; and d) extruding the first and second layers of polymer into a dual roller nip with microstructure engravings in at least one roller. | 02-03-2011 |
20120256334 | METHOD FOR DETERMINING RECORDING EXPOSURE FOR HOLOGRAPHIC RECORDING MEDIUM AND METHOD FOR RECORDING THEREON - An optimal recording exposure is determined by varying in the first to nth stages the recording exposure with a write laser beam to record a bright pattern image and a dark pattern image in each stage as the first to nth bright pattern images and the first to nth dark pattern images, respectively; irradiating the respective pattern images with a read beam to detect the intensity of a diffracted beam from the central portion of each image of the bright and dark patterns; calculating Sa | 10-11-2012 |
20130249129 | METHOD OF MANUFACTURING POLARIZING PLATE - The present invention provides a method of manufacturing a polarizing plate having sufficient heat resistance, without deteriorating the dye-affinity and the like of the polarizing film and without the necessity of transferring or detaching the polarizing film. Provided is a method of manufacturing a polarizing plate ( | 09-26-2013 |
20140054805 | DEVICES AND PROCESSES FOR FABRICATING MULTI-COMPONENT OPTICAL SYSTEMS - The present disclosure relates to devices and processes for fabricating a multi-component optical system. A device is an integral mold comprising an attachment portion and a cup portion having a cavity, and the mold further comprises a first optical component. The cavity of the mold contains additional optical components to form a multi-component optical system blank. Another device is a multi-component optical system blank. A process for fabricating a multi-component optical system blank comprises providing an integral mold comprising a first optical component, adding at least a second optical component, shaping the mold after addition of an optical component, and shaping the resultant blank into an optical system. A further device is a multi-component optical system produced in a process disclosed herein. | 02-27-2014 |
264100320 | Lens | 30 |
20080246171 | CHILLED INJECTION MOLDING DURING OPHTHALMIC LENS MANUFACTURE - The present invention includes molds for forming ophthalmic lenses, such as contact lens. In particular, the present invention relates to apparatus, molds and methods for fashioning mold parts used to fashion an ophthalmic lens which includes cooling a mold structure used to fashion a mold part prior to depositing a molten material into the mold structure. | 10-09-2008 |
20080251958 | LIGHT ABSORBING PREPOLYMERS FOR USE IN TINTED CONTACT LENSES AND METHODS FOR THEIR PRODUCTION - The present invention relates to compositions comprising a light absorbing prepolymer having a molecular weight of between about 7,000 and about 100,000 and polymeric units derived from and least one reactive light absorbing component and monomers selected from the group consisting of hydrophilic monomers, hydrophobic monomers and mixtures thereof. The compositions of the present invention are useful for the manufacture of ophthalmic devices, including contact lenses. | 10-16-2008 |
20080258322 | USE OF SURFACTANTS IN EXTRACTION PROCEDURES FOR SILICONE HYDROGEL OPHTHALMIC LENSES - Methods of producing silicone hydrogel ophthalmic lenses include contacting one or more delensed silicone hydrogel ophthalmic lens with a liquid composition that contains alcohol, water, and a surfactant. The methods can be steps of an extraction/hydration procedure used in the production of silicone hydrogel contact lenses. In some examples, contacting silicone hydrogel ophthalmic lens products with a liquid composition that contains alcohol, water, and a surfactant can significantly reduce or prevent surface distortion of the ophthalmic lens resulting from the extraction procedure. Some methods include subsequently contacting the silicone hydrogel ophthalmic lens with a liquid composition consisting essentially of water and a surfactant. | 10-23-2008 |
20080277811 | Contact Lens Production - A mould set for making contact lenses comprising a first unitary half mould set comprising a plurality of male mould halves in a first array and a second unitary half mould set comprising a plurality of female mould halves in a second array, wherein the arrays are such as to permit the engagement of respective pairs of male and female mould halves to define a corresponding set of mould cavities therebetween, and to permit engagement of each said female mould half with a different said male mould half by relative rotation of the first and second array about an axis of rotation, such that the male and female mould halves can be engaged in a plurality of different relative orientations. The shape and/or orientation of the male mould halves in the first array, and the female mould halves in the second array is not identical for each mould half in each said array, whereby relative rotation results in the definition of different sets of respective mould cavities. Methods of making the mould set and methods of making contact lenses using the mould set are also mentioned. | 11-13-2008 |
20090091048 | Method of Sealing and Molding an Optical Device With Resin - A top mold capable of holding a substrate and a bottom mold including a cavity having a molding portion corresponding to a geometry of a lens are prepared. Then the substrate with a plurality of chips mounted thereon is fixed to the top mold. Then a translucent resin material is introduced into the cavity and alters to be molten resin. Then the top mold and the bottom mold are closed together to immerse the plurality of chips in the molten resin and also distribute the molten resin in the cavity uniformly. Then the molten resin alters to be a translucent mold product to provide a lens member. Subsequently the top mold and the bottom mold are opened to detach from the bottom mold the substrate bearing the lens member. Then the substrate bearing the lens member is removed from the top mold. | 04-09-2009 |
20090102078 | Contact Lens Molds and Systems and Methods for Producing Same - Contact lens molds and systems and methods for producing contact lens molds are described. The contact lens mold sections include two optical quality surfaces, a flange circumscribing at least a portion of the two optical quality surfaces, and an elongate member extending from the flange. Two mold sections can contact one another to form a mold assembly having a contact lens shaped cavity. The mold sections are structured to form a contact lens having an edge that does not require further physical modification before placement on an eye. Systems and methods are described which direct a molten polymeric material into cavities corresponding to the mold sections. | 04-23-2009 |
20090121369 | APPARATUS FOR MOLDING OPTICAL ELEMENT AND METHOD FOR MOLDING OPTICAL ELEMENT - A pressing device is provided so as to abut on an upper face of a drum mold of a mold to press the drum mold downward and fix the drum mold on a pedestal. While the drum mold is fixed to the pedestal by the pressing device, an upper mold is detached from and attached to the drum mold by a clamper. Further, a lower mold is engaged with a tapered engaging part of the drum mold through a tapered engaging part and fixed to the pedestal through the drum mold by the pressing device. According to this molding apparatus, the drum mold and the lower mold can be easily fixed to the pedestal by the pressing device irrespective of the presence or absence of an outer drum arranged in the outer periphery of the drum mold. | 05-14-2009 |
20090146328 | Method for Providing Lens Blanks - A method provides a machineable silicon-containing lens blank by removal of diluent from the lens blank. The method involves casting a lens blank in a mold, wherein the lens blank is made of a polymerization product of a monomeric mixture comprising a silicone-containing monomer and an organic diluent; removing the lens blank from the mold; and removing organic diluent from the lens blank. | 06-11-2009 |
20090146329 | LENS RELEASE - 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. | 06-11-2009 |
20090152747 | Polarized Lens and Method of Making Polarized Lens - 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. | 06-18-2009 |
20090166904 | Method of Forming a Biomedical Device including an Ophthalmic Device - 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. | 07-02-2009 |
20090174093 | Polarized Lens and Method of Making Polarized Lens - 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. | 07-09-2009 |
20090174094 | Polarized Lens and Method of Making Polarized Lens - 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. | 07-09-2009 |
20090174095 | Polarized Lens and Method of Making Polarized Lens - 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. | 07-09-2009 |
20090174096 | Polarized Lens and Method of Making Polarized Lens - 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. | 07-09-2009 |
20090179339 | Lens molding gasket - A lens molding gasket comprising one integral membrane serving as a mold shell, and a seating for a removable mold shell. | 07-16-2009 |
20090261489 | METHOD FOR MAKING LENSES - 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. | 10-22-2009 |
20090278268 | Polarized Lens and Method of Making Polarized Lens - 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. | 11-12-2009 |
20090283926 | METHOD FOR POST-INJECTION LAMINATION TO ADD A FUNCTIONAL FILM TO AN OPTICAL LENS - 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. | 11-19-2009 |
20090283927 | Method of fabricating small dimensioned lens elements and lens arrays using surface tension effects - 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. | 11-19-2009 |
20100065975 | INJECTION MOLDING A LENS ONTO A COATED OPHTHALMIC WAFER - 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. | 03-18-2010 |
20100230836 | IMPRINT MOLD AND IMPRINT MOLDING METHOD - An exemplary imprint mold includes a surface, a plurality of molding portions arranged on the surface and a plurality of contraposition symbols arranged around the molding portions. The contraposition symbols include two first contraposition symbols arranged parallel to a first axis, two second contraposition symbols arranged parallel to a second axis, and four third contraposition symbols. The first axis and the second axis are perpendicularly intersecting at a geometrical center of the surface. Any two selected of the four third contraposition symbols are symmetrically positioned relative to each other about one of the first axis, the second axis, and the geometrical center. | 09-16-2010 |
20100283164 | Ocular Lens - A method of making an ocular lens device (and resulting lens device) from a polyolefin copolymer material having a crosslinking component, wherein the material is processed to remove unwanted reaction byproducts that can contribute to reduced transparency of the polyolefin copolymer material in the ocular environment of the eye. | 11-11-2010 |
20110001252 | PROCESS FOR PRODUCING OPTICAL ARTICLE - An object of the present invention is to provide a process for producing a lens suitable in sunglasses or anti-glare spectacles which reduces blue hazard, and by which a blue signal can be confirmed visually, and an optical filter, and an optical article which can cut at least a part of visible light of 380 to 500 nm. | 01-06-2011 |
20110215493 | PLASTIC POLARIZED LENS AND METHOD OF PRODUCING THE SAME - A method of producing a plastic polarized lens with excellent processability and the like by injecting a mixture of a specified isocyanate compound and a specified active hydrogen compound into a lens-forming mold wherein a polarized film containing a thermoplastic polyester is fixed, followed by polymerization and curing. | 09-08-2011 |
20110266703 | Method and System of Measuring Toric Lens Axis Angle - A method of measuring an axis angle of a toric contact lens including a posterior toric central zone having a cylindrical axis, and an anterior lens surface forming a ballast that has an axis of orientation offset from the cylindrical axis at a selected rotational angle is disclosed. The method involves (a) providing anterior and posterior mold sections including respective anterior and posterior mold cavity defining surfaces, wherein the posterior mold cavity defining surface includes a toric central zone and the anterior mold cavity defining surface is shaped to provide the ballast, the mold sections being alignable at multiple rotational positions; (b) providing a detectable feature on each of the anterior and posterior mold sections at a predetermined angular location with respect to the tonic and ballast axes thereof, respectively; (c) rotating the detectable feature of the posterior mold section relative to the detectable feature of the anterior mold section, wherein the detectable feature of the anterior mold section is a zero reference; and (d) measuring the axis angle between the detectable feature of the posterior mold section relative to the detectable feature of the anterior mold section after rotational displacement of the mold sections during toric contact lens formation. | 11-03-2011 |
20130175720 | RESIN MOLDED PRODUCT, METHOD OF MANUFACTURING THE SAME, DIE FOR RESIN MOLDED PRODUCT - A resin molded product includes a primary molded object molded by a primary molding die, and a secondary molded object formed to be integrated with the primary molded object by a secondary molding die, the secondary molding die including a shared molding die which shares a part of the primary molding die. The primary molded object includes a rotation regulation portion making a mutual concave-convex fit engagement at a joint portion between the primary molded object and a molding surface of the shared molding die and regulating rotation and shift of the primary molded object in circumferential directions about a center axis of the primary molded object. | 07-11-2013 |
20130313731 | ACTINICALLY CURABLE SILICONE HYDROGEL COPOLYMERS AND USES THEREOF - The present invention provides inks and methods for making colored silicone hydrogel contact lenses. The ink of the invention comprises an actinically-curable binder copolymer comprising fluorine-containing segments and is characterized by having capability to be cured actinically or thermally to form a colored film on a molding surface of a mold or a silicone hydrogel contact lens and by having an increased durability in a solvated state in a silicone-hydrogel lens formulation in relation to a control colored film obtained from a control ink including an actinically-curable fluorine-free binder copolymer. The invention also provides methods for making colored silicone hydrogel contact lenses based on print-on-mold processes for producing colored contact lenses. | 11-28-2013 |
20140151911 | POLARIZING LENS MADE OF AROMATIC POLYCARBONATE - The present invention relates to a polarizing lens molded by inserting a polarizing sheet bent into a sphere or an asphere after having an aromatic polycarbonate sheet bonded via an adhesive layer to both surfaces of a film with polarized nature into a mold, and injecting aromatic polycarbonate, wherein heat treatment at a temperature not less than a temperature of 50° C. lower than the glass transition point and less than the glass transition point for an appropriate time has been performed after injecting aromatic polycarbonate to approximate a designed value of the lens curvature. | 06-05-2014 |
20160176131 | METHOD OF MANUFACTURING POLARIZING PLASTIC LENS | 06-23-2016 |
264100330 | Optical recording medium | 4 |
20090045534 | SYSTEM, METHOD, AND APPARATUS FOR MEMBRANE, PAD, AND STAMPER ARCHITECTURE FOR UNIFORM BASE LAYER AND NANOIMPRINTING PRESSURE - A nanoimprinting system incorporates a patterned media contact architecture to provide a uniform imprinting pressure across the target imprinting area on a disk substrate. The system leverages the unique disk substrate characteristic of an inner diameter hole by incorporating a membrane suspension, gel-pad buffering, and air cushion loading that exploits the inner diameter hole characteristics of the disk substrate. This design dramatically increases the uniformity of the pressing pressure across the target imprinting area. As a result, a simple and effective improvement of the quality of the patterns imprinted on the recording disk substrate is realized. | 02-19-2009 |
20090102079 | OPTICAL DISK AND METHOD FOR PRODUCING THE SAME - An optical disk is constructed such that a thin film including a reflective layer is formed on a substrate, or on a thermoplastic resin layer on the substrate. A stamper having an asperity pattern corresponding to information signals is directly pressed against the thin film to transfer the asperity pattern on the thin film. Heat-pressing the stamper against the thin film makes it possible to further accurately transfer the asperity of the stamper to the reflective layer with less pressing force in the case where the reflective layer is formed on a thermoplastic resin layer. | 04-23-2009 |
20090134534 | Device and A method for producing a diffractive microstructure - Micro-protrusions, which constitute a diffractive microstructure, are produced by embossing the surface layer of a substrate by an embossing member having microgrooves in such a way that the cross-sectional area of a produced micro-protrusion is substantially smaller than the cross-sectional area of the microgroove producing said micro-protrusion. Thus, the embossing pressure is small, the risk of adhesion is reduced, it is possible to use a low embossing temperature, and microstructures may be produced at a high speed. Furthermore, the same embossing member may be used for producing a low microstructure, a normal microstructure, and a high microstructure. | 05-28-2009 |
20100090358 | PROCESS AND APPARATUS FOR PRODUCING OPTICAL RECORDING MEDIUM - To produce an optical recording medium having a good concavo-convex shape whereby optical information recording/retrieving is stabilized. | 04-15-2010 |
264100340 | Film or sheet | 33 |
20080197518 | Shaped article with polymer domains and process - A process for making a multiphase birefringent film and resulting shaped article comprise (a) a first polymeric material forming a continuous phase in all directions and (b) a second polymeric material that is continuous in only one direction disposed within the first phase, the second polymeric material being predominately curvilinear in shape and substantially extending the length of the film, at least one of the phases being birefringent and the two phases being substantially matched in refractive index in at least one direction | 08-21-2008 |
20080217798 | MOLD STRUCTURE AND THE MANUFACTURING METHOD THEREOF - A mold structure and the manufacturing method thereof are disclosed. The mold structure is comprised of: an axle; a roller, axially ensheathing the axle; and a mold having a specific imprint pattern of microstructures formed thereon, being arranged to mount on the periphery of the roller while connecting to the axle; wherein a pulling force is exerted on the mold by the axle for stretching the mold while enabling the same to tensely adhere upon the periphery of the roller. | 09-11-2008 |
20080217799 | OPTICAL BODIES INCLUDING STRIPPABLE BOUNDARY LAYERS - The present disclosure is directed to optical bodies including a first optical film, a second optical film and one or more strippable boundary layers disposed between the first and second optical films. Each major surface of a strippable boundary layer may be disposed adjacent to an optical film or another strippable boundary layer. At least one of the first and second optical films may include a reflective polarizer. The present disclosure is also directed to methods of processing such optical bodies. | 09-11-2008 |
20080224340 | Method of making a polarizing sheet and method of lamination - A method of making a polarizing sheet and a related method of lamination are disclosed. The method of making a polarizing sheet includes steps of forming a surface-modified polarizer having carboxylic groups from a polyvinyl alcohol (PVA) film, and then performing a thermocompression lamination to laminate the polarizer with at least one protective film having hydroxyl groups on a surface thereof to form a polarizing sheet. | 09-18-2008 |
20080296793 | Lighting apparatus and display apparatus - The lighting apparatus includes a light source, a housing that contains the light source inside and has an exit port for outputting light from the light source, and an optical sheet that is placed in the exit port. The optical sheet includes a lens structure that is placed at a light exit side and aligns an output direction of incident light from the light source, a reflector that is placed at a light incident side and reflects light emitted by the light source, and a light transmitting opening that exists in the reflector and transmits incident light from the light source. The light transmitting opening is placed in a position deviated from an optical axis of the lens structure. The display apparatus includes the lighting apparatus. | 12-04-2008 |
20090032986 | METHOD FOR MANUFACTURING THERMOPLASTIC RESIN FILM - According to an aspect of the invention, there is provided a method for manufacturing a thermoplastic resin film, comprising the steps of: extruding a molten thermoplastic resin from a die in the form of sheet and sandwiching the sheet-form thermoplastic resin between one drum and the other drum to cool, in which at least one of the drums has concave portions of 5 nm to 500 nm (both inclusive) depth in an area ratio of 0.5% to 20% (both inclusive). According to the aspect of the present invention, the sheet-form thermoplastic resin is excellent in handling, since desired convex portions are formed therein. | 02-05-2009 |
20090051058 | Method for producing polarized, polarizer, polarizing plate, optical film, and image display device - A method for producing a polarizer of the present invention comprises: subjecting a polyvinyl alcohol film to at least a dyeing process, a crosslinking process and a stretching process; and then subjecting the polyvinyl alcohol film to a washing process with an aqueous solution containing 1 to 50% by weight of an alcohol and 0.5 to 10% by weight of an iodide compound. A polarizer produced by the production method has high transmittance and high degree of polarization. | 02-26-2009 |
20090085236 | FILM STRETCHING METHOD AND SOLUTION CASTING METHOD - A TAC film has a thickness profile in which its thickness decreases from side edge portions toward a center portion. The TAC film has a retardation profile in which its in-plane retardation Re decreases from the side edge portions toward the center portion. The retardation profile is caused by the thickness profile. In a tenter section, the TAC film is stretched in a width direction while the side edge portions are being held. A difference of increase in the in-plane retardation Re of the film in the width direction after the stretching is compensated by a difference of the in-plane retardation Re of the film in the width direction before the stretching. | 04-02-2009 |
20090134535 | Method of manufacturing an intrinsic polarizer - An improved method of forming an intrinsic polarizer, referred to as a K-type polarizer, includes stretching a polymeric film a first stretching step. The polymeric film comprises a hydroxylated linear polymer which is converted after the first stretching step to form dichroic, copolymer polyvinylene blocks aligned in the polymeric film. The polymeric film is stretched in a second stretching step while converting the hydroxylated linear polymer. This method produces an improved K-type polarizer with excellent polarizing and color characteristics. For example, the dichroic ratio is higher than 100, the color shift for light passed through the polarizer in a crossed configuration is low, and the absorption of light in the blue region of the visible spectrum is more than one half of the absorption for light in the middle of the visible spectrum. | 05-28-2009 |
20090152748 | Polarizer Films and Methods of Making the Same - In general, in one aspect, the invention features methods that include forming a roll of a first material into a substrate and forming a plurality of rows of a second material on the substrate, where the second material includes a metal, the rows of the second material extend along a first direction, the rows are spaced apart from one another, and adjacent rows are spaced apart by about 400 nm or less. | 06-18-2009 |
20090174097 | SYSTEM FOR MANUFACTURING MICRO-RETARDER AND METHOD FOR MANUFACTURING THE SAME - A system for manufacturing a micro-retarder and a method for manufacturing the same are provided. The system for manufacturing a micro-retarder includes a carrying device, a heating device and a movement control device. The carrying device is used for carrying a polymolecule film. The polymolecule film is selected from a polymolecule film having an arrangement direction. The heating device is used for providing a heating source. The energy formed in the central area of the heating source is smaller than that in the peripheral area of the heating source. The movement control device is used for controlling the heating source and the polymolecule film to relatively move along a first direction, so that the adjusted heating source heats at least one partial area of the polymolecule film along the first direction and resumes the partial area of the polymolecule film to be non-directional. | 07-09-2009 |
20090218707 | METHOD FOR MAKING PEN/PMMA MULTILAYER OPTICAL FILMS - Methods and apparatuses are provided for the manufacture of coextruded polymeric multilayer optical films. The multilayer optical films have an ordered arrangement of layers of two or more materials having particular layer thicknesses and a prescribed layer thickness gradient throughout the multilayer optical stack. The methods and apparatuses described allow improved control over individual layer thicknesses, layer thickness gradients, indices of refraction, interlayer adhesion, and surface characteristics of the optical films. The methods and apparatuses described are useful for making interference polarizers, mirrors, and colored films that are optically effective over diverse portions of the ultraviolet, visible, and infrared spectra. | 09-03-2009 |
20090230579 | METHOD OF FABRICATING POLARIZER - A method of fabricating a polarizer is provided. The method includes following steps. First, a polyvinyl alcohol (PVA) film is provided. A dyeing process is then performed on the PVA film by using an ultraviolet (UV) light as a dyeing assistant. Next, an iodine dyeing process is performed on the PVA film. Finally, a protection film is formed on an upper surface of the PVA film and a protection film is formed on a lower surface of the PVA film, so as to form the polarizer. | 09-17-2009 |
20090261490 | FILM INSERT MOLDING (FIM) ON A 3D SHAPE - Systems and methods are described for performing film insert molding (FIM) on a 3D shape, such as a traffic light shell or cover. A film is pre-generated for a surface to be covered by the film, and is inserted into a mold. A viscous material is then injected into the mold and the film bonds to the shell as the viscous material cools and hardens. The film includes a material selected to provide one or more of scratch resistance, improved shell hardness, UV protection, corrosion protection etc., and/or may be selected to alter optical characteristics of the shell. | 10-22-2009 |
20090267246 | METHOD AND APPARATUS FOR MANUFACTURING LENTICULAR PLASTICS BY CASTING - A method and apparatus for producing a lenticular plastic sheet from a material resin having a first surface and an opposite second surface employs a patterned chill roller having an outer surface defining a lenticular pattern thereon disposed adjacent and parallel to a nip roller so as to define a nip therebetween. A material resin is extruded onto the chill roller while in a molten state and begins to cool forming a sheet. Thereafter, the sheet passes into the nip so that the first surface of the sheet is in contact with the lenticular pattern of the chill roller. The lenticular pattern of the chill roller is subsequently transferred to the sheet. | 10-29-2009 |
20090295000 | Biaxial-optical polynorbornene-based film and method of manufacturing the same, integrated optical compensation polarizer having the film and method of manufacturing the polarizer, and liquid crystal display panel containing the film and/or polarizer - Disclosed is a method of manufacturing a biaxial polynorbornene-film having a compensation film which has good light transmittance and a uniform in-plane retardation value and can function as both a negative C-plate and an A-plate. | 12-03-2009 |
20100052196 | OPTICALLY DRIVEN ACTUATOR AND METHOD OF MANUFACTURING THE SAME - An optically driven actuator includes a crosslinked polymer obtained by crosslinking at least part of the side chains of a condensation polymer having, on its backbone chain, a photoisomerizable group that undergoes structural change under optical stimulation. The crosslinked polymer deforms reversibly depending on optical stimulation, thereby performing the function of an actuator. | 03-04-2010 |
20110115109 | Method of manufacturing a reflective polarizer - The present invention provides a method for manufacturing a diffusely reflecting polarizer, comprising: extruding and stretching a film containing a first polymer having a birefringence of less than 0.02, with said first polymer being a substantially amorphous nano-composite material, and a second polymer, the first polymer being a major phase, and the second polymer being a dispersed minor phase, wherein said first and second polymers taken together along a first axis for one polarization state of electromagnetic radiation exhibit a diffuse reflectivity R | 05-19-2011 |
20120056340 | METHOD OF PRODUCING ROLL OF LAMINATE STRIP WITH POLARIZING FILM - A method of producing a roll of an optical film laminate strip including a polarizing film includes the steps of: forming a continuous web of optical film laminate including a polarizing film which consists of a polyvinyl alcohol type resin layer and has a thickness of 10 μm or less, wherein the polarizing film is formed by performing an stretching sub-step of subjecting a laminate comprising a continuous web of thermoplastic resin substrate and a polyvinyl alcohol type resin layer formed on the substrate, to a uniaxial stretching in a lengthwise direction of the laminate based on 2-stage stretching consisting of preliminary in-air stretching and in-boric-acid-solution stretching; cutting the continuous web of optical film laminate along a direction parallel to the length direction to form at least one continuous web of laminate strip having a given width; and winding the continuous web of laminate strip having the given width into a roll. | 03-08-2012 |
20120161344 | METHOD OF MANUFACTURING A DIFFUSELY-REFLECTING POLARIZER HAVING A NEARLY ISOTROPIC CONTINUOUS PHASE - The present invention provides a method for manufacturing a diffusely reflecting polarizer, comprising the steps of: coextruding first and second polymers through a chaotic mixer and a sheeting die to produce a cast sheet with a desired blend morphology and stretching said cast sheet to produce a composite film containing a first polymer having a birefringence of less than 0.02, with said first polymer being an amorphous material and a continuous phase, and a second polymer which forms a dispersed phase, and having an index of refraction that differs from said continuous phase by greater than about 0.05 along a first axis and by less than about 0.05 along a second axis orthogonal to said first axis, wherein said first and second polymers taken together along a first axis for one polarization state of electromagnetic radiation exhibit a diffuse reflectivity R | 06-28-2012 |
20120161345 | METHOD OF MANUFACTURING A DIFFUSELY-REFLECTING POLARIZER HAVING A SUBSTANTIALLY AMORPHOUS NANO-COMPOSITE CONTINUOUS PHASE - The present invention provides a method for manufacturing a diffusely reflecting polarizer, comprising the steps of: coextruding first and second polymers through a chaotic mixer and a sheeting die to produce a cast sheet with a desired blend morphology and stretching said cast sheet to produce a composite film containing a first polymer having a birefringence of less than 0.02, with said first polymer being a substantially amorphous nano-composite material, and a second polymer, the first polymer being a major phase, and the second polymer being a dispersed minor phase, wherein said first and second polymers taken together along a first axis for one polarization state of electromagnetic radiation exhibit a diffuse reflectivity R | 06-28-2012 |
20140124966 | METHOD AND DEVICE FOR MANUFACTURING TREATED FILM - A method for manufacturing a treated resin film from a long resin film, the method including at least treatment steps each including treating the long resin film by bringing the long resin film into contact with a treatment liquid in a treatment tank, while feeding the long resin film, wherein at least one of the treatment steps is a one-side contact step including bringing a lower surface of the resin film into contact with a surface of the treatment liquid in the treatment tank that is filled with the treatment liquid, and nip rolls are placed downstream of at least one one-side treatment tank for the one-side treatment step. The method is capable of satisfying the properties required of the treated film and also capable of reducing the occurrence of scratches, dents, and other defects. | 05-08-2014 |
20140167298 | ALIGNMENT APPARATUS, EXPOSING APPRATUS INCLUDING THE SAME, AND MANUFACTURING METHOD OF LIQUID CRYSTAL DISPLAY DEVICE - Exemplary embodiments of the invention relate to an alignment apparatus including a source unit providing an electromagnetic signal, a receiving unit detecting the provided electromagnetic signal, and a polarization element positioned between the source unit and the receiving unit and having a transmissive axis fixed in a predetermined direction. A substrate may be positioned between the source unit and the receiving unit, and may be formed with a polarizer including a plurality of metal lines with a minute linear pattern. The luminance or intensity of the electromagnetic signal may be detected by the receiving unit while rotating the substrate. | 06-19-2014 |
20140175684 | Methods and Equipment for Trimming Polarizers in Displays - An electronic device is provided with a display such as a liquid crystal display mounted in an electronic device housing. The display includes a glass display layer such as a glass color filter substrate. A polarizer layer is formed on the glass display layer. To ensure that the peripheral edge of the polarizer layer matches the peripheral edge of the glass display layer, a laser beam scanning system is used to trim edge portions of the polarizer layer that overhang the glass display layer. The laser beam scanning system includes a moving laser beam that makes multiple scans along the edge of the polarizer layer. To prevent damage to the glass display layer during trimming operations, a characteristic of the moving laser is modified in between successive scans such that the energy density of the laser cut is reduced as the laser beam approaches the surface of the glass. | 06-26-2014 |
20140191428 | MULTI-AXIS DIFFRACTION GRATING - An enhanced optical interference pattern, such as a diffraction grating, is incorporated into a photodefineable surface by shining three or more beams of coherent light from a single source at a photodefinable surface, such as a photosensitive emulsion/photoresist covered glass or an ablatable substrate and mapping the diffraction grating pattern to the photodefinable surface. Mapping of the optical interference pattern is created by interference of three or more light beams, such as laser light or other light sources producing a suitable spectrum of light. The mapped photodefinable surface can be used to create embossing shims. The embossing shim can then be used to emboss film or paper. The embossed film/paper can be metalized and laminated onto a substrate to create a product that has shifting patterns at a variety of viewing angles when exposed to white light. | 07-10-2014 |
20140252666 | METHOD OF FABRICATING A LIQUID CRYSTAL POLYMER FILM - A method of fabricating a liquid crystal polymer film includes providing a support substrate having a surface having a shape arranged to define a form of a liquid crystal polymer film to be fabricated; applying a layer of a photoaligning material over the surface of the support substrate, the photoaligning material having an absorption band; exposing the layer of photoaligning material to a light having a linear polarization and the light comprising a wavelength within the absorption band to convert the layer of photoaligning material into a layer of photoaligned material; applying a layer of a polymerizable liquid crystal over the layer of photoaligned material; performing photopolymerization of the layer of polymerizable liquid crystal to form a liquid crystal polymer film; applying a solvent to the layer of photoaligned material, the solvent formulated to dissolve the photoaligned material to thereby release the liquid crystal polymer film from the support substrate; and removing the liquid crystal polymer film from the support substrate. | 09-11-2014 |
20140264979 | METHOD OF PREPARING PHOTOCHROMIC-DICHROIC FILMS HAVING REDUCED OPTICAL DISTORTION - The present invention relates to a method of preparing a photochromic-dichroic film that includes a photochromic-dichroic layer. The method includes forming a molten thermoplastic photochromic-dichroic composition that includes a thermoplastic polymer and a photochromic-dichroic compound. Optionally at least one further molten thermoplastic composition is formed, each of which independently includes a further thermoplastic polymer. A molten stream is formed that includes a first molten layer composed of the molten thermoplastic photochromic-dichroic composition, and at least one further molten layer, each of which is independently composed of a further molten thermoplastic composition. The molten stream is passed between a rotating roll and a continuous belt that move in the same relative direction. A photochromic-dichroic film having reduced/minimal optical distortion is obtained (e.g., continuously) from between the rotating roll and the continuous belt. | 09-18-2014 |
20150008601 | RETARDATION PLATE MANUFACTURING METHOD - A retardation plate manufacturing method for manufacturing a retardation plate that has an orientation pattern in which is formed a plurality of regions having optical axes oriented in different directions from each other, the retardation plate manufacturing method comprising arranging an unoriented light orientation layer that is to be oriented by light on a first surface of a substrate; preparing a retardation mask including an orientation pattern in which is formed a plurality of regions that have a quarter wavelength retardation plate retardation function and correspond to the plurality of regions in the orientation pattern of the retardation plate; and orienting the light orientation layer by irradiating the retardation mask with elliptically polarized light and irradiating the light orientation layer with polarized light emitted form the retardation mask. | 01-08-2015 |
20160052215 | METHOD FOR PRODUCING PHASE-DIFFERENCE FILM AND METHOD FOR PRODUCING CIRCULARLY POLARIZING PLATE - The present invention provides a method capable of producing a retardation film having an elongated shape, having high uniaxiality and a high in-plane alignment property, and having a slow axis in an oblique direction with high production efficiency. The production method for a retardation film of the present invention includes: holding left and right end portions of a film with left and right variable pitch-type clips configured to have clip pitches changing in a longitudinal direction, respectively; preheating the film; increasing the clip pitch of the clips on one side and reducing the clip pitch of the clips on another side, while extending a distance between the left and right clips, to obliquely stretch the film; maintaining or reducing the clip pitch of the clips on the one side and increasing the clip pitch of the clips on the another side so that the clip pitches of the left and right clips are equal to each other, while extending the distance between the left and right clips, to obliquely stretch the film; and releasing the film from being held with the clips. | 02-25-2016 |
20160377777 | METHODS FOR MANUFACTURING POLARIZING ELEMENT, POLARIZING ELEMENT ROLL AND SINGLE SHEET TYPE POLARIZING ELEMENT HAVING LOCAL BLEACHING AREAS (AS AMENDED) - The present invention relates to a method for manufacturing a polarizing element including locally bleached areas including steps of providing a polarizing element including a polyvinyl alcohol-based polarizer in which at least one or more of iodine and dichroic dye is oriented in a certain direction; partially bleaching the polyvinyl alcohol-based polarizer by bringing a bleaching solution into contact with one surface of the polyvinyl alcohol-based polarizer through a printing method; and correcting an appearance of the partially bleached polarizing element. | 12-29-2016 |
264100350 | Halogen containing | 3 |
20100314784 | PROCESS FOR PRODUCING WATER-RESISTANT POLARIZING FILM - To obtain a water-resistant polarizing film free from deterioration in dichroic ratio caused by water-resistant treatment, it is critical that adjacent sulfonic acid groups or sulfonate groups in the organic dyes to be used for the polarizing film are spaced at moderate intervals. In a process for producing a water-resistant polarizing film of the present invention, the polarizing film before water-resistant treatment includes an organic dye which comprises an azo compound 20 represented by the following general formula (1) or (2) | 12-16-2010 |
20120199994 | APPARATUS AND METHOD FOR A SUB MICROSCOPIC AND OPTICALLY VARIABLE IMAGE CARRYING DEVICE - The present invention relates generally to an apparatus for embossing a flexible substrate. More specifically, the present invention relates to an apparatus for embossing a curable composition coated flexible substrate with an optically variable image transferred from an embossing foil, especially belt, or sheet of an optically transparent fluoropolymer. The optically variable image is irradiated through the embossing belt, or sheet with ultra-violet light contemporaneously with the embossing so that the transferred imprint pattern cures, hardens, and retains its shape. | 08-09-2012 |
20130277871 | PROCESS FOR PRODUCING WATER-RESISTANT POLARIZING FILM - To obtain a water-resistant polarizing film free from deterioration in dichroic ratio caused by water-resistant treatment, it is critical that adjacent sulfonic acid groups or sulfonate groups in the organic dyes to be used for the polarizing film are spaced at moderate intervals. In a process for producing a water-resistant polarizing film of the present invention, the polarizing film before water-resistant treatment includes an organic dye which comprises an azo compound | 10-24-2013 |