Class / Patent application number | Description | Number of patent applications / Date published |
264200700 | Reshaping or treatment of an optical preform | 45 |
20080230934 | METHOD OF PRODUCING A WAFER SCALE PACKAGE - A method for manufacturing a wafer scale package including at least one substrate having replicated optical elements. The method uses two substrates, at least one of which is pre-shaped and has at least one recess in its front surface. Optical elements are replicated on a first substrate by causing a replication tool to abut the first substrate. The second substrate is then attached to the first substrate in an abutting relationship in such a way that the optical element is contained in a cavity formed by the recess in one of the substrates in combination with the other substrate. Thereby, a well defined axial distance between the optical elements and the second substrate is achieved. Consequently, well defined axial distance between the optical elements and any other objects attached to the second substrate, e.g. further optical elements, image capturing devices, light sources, is also established. | 09-25-2008 |
20080265452 | Inflatable Membrane Pressing Apparatus for a Film or Coating Application or Lamination Process - An inflatable membrane pressing apparatus ( | 10-30-2008 |
20090057934 | FORMING SHEET, LENTICULAR LENS SHEET PRODUCTION METHOD, AND THEIR PRODUCTION APPARATUS - A method and an apparatus for producing a pattern forming sheet efficiently. The method and apparatus for producing a sheet having a first pattern formed on at least one side by a first roll forming die and a second pattern formed by a second roll forming die is characterized in that the rotational angular speeds of the first and second roll forming dies are substantially equalized and relative positional variation of the first and second patterns is substantially minimized by synchronizing the phases of the periodic positional variation caused by the rotation of the rolls. | 03-05-2009 |
20090072421 | METHOD FOR CUTTING SEMI-FINISHED MOLDING LENS - An exemplary method for cutting a semi-finished molding lens is provided. The semi-finished molding lens includes a lens portion, a runner forming portion, and a joint, the joint connected between the lens and the runner forming portion. The method includes the steps of: securing the semi-finished molding lens on a base; holding the lens portion by a suction force using a suction device; and cutting the lens portion off from the runner forming portion by a laser beam. | 03-19-2009 |
20090072422 | OPTICAL GLASS AND OPTICAL ELEMENT - An optical glass contains, based on a total weight of the optical glass: 12 to 30 weight percent of P | 03-19-2009 |
20090115082 | Method of producing a lens - A method of producing a lens that includes shifting a first die relative to a second die, and pressing an optical material shaped in a preliminary form between the first die and the second die so as to form a lens having a configuration corresponding to a hollow portion formed by the first die and the second die while shifting the first die relative to the second die. The produced lens includes an effective optical surface configured to converge a light flux. The effective optical surface includes a light entrance side, a light exit side, and an optical axis. The effective optical surface is a convex surface shaped such that when a maximum normal line angle is defined as an angle formed between the optical axis and a normal line at the outermost circumference of the effective optical surface, the maximum normal angle is 60° to 90°. | 05-07-2009 |
20090121371 | Process for Producing Microlens - In a microlens formation step, the portions of a lens material film ( | 05-14-2009 |
20090230581 | Optical element molding die, and optical element manufacturing method - It is to provide an optical element, an optical element molding die, and an optical element manufacturing method, which can easily but surely suppress generation of transcription failure of a resin material and also enables to manufacture an optical element with an excellent optical performance at a low cost while improving the yield. In an optical element formed with a resin material, a gate part is formed on a side face of an optical element main body, and a ratio of the thickness of the gate part with respect to the thickness of an optical function part of the optical element main body is set as 50% or more. | 09-17-2009 |
20090256273 | METHOD FOR MAKING LENSES - A method for making a plurality of lenses, includes steps of: providing a transparent substrate; jetting a plurality of first lumps of a first molding material on a first surface of the substrate using a first nozzle; press-molding the first lumps of the first molding material into a plurality of first optical structures using a first mold including a plurality of first molding surfaces corresponding to the first optical structures; jetting a plurality of second lumps of a second molding material on a second surface of the substrate using a second nozzle; press-molding the second lumps of the second molding material into a plurality of second optical structures using a second mold including a plurality of second molding surfaces corresponding to the second optical structures; and dicing the substrate to form a plurality of lenses each with one of the first optical structures and one of the second optical structures. | 10-15-2009 |
20090315202 | METHOD OF SHAPING AN ASPHERICAL OPTICAL ELEMENT - A method of shaping an aspherical optical element, such as a composite mirror element, the method comprising the following steps: | 12-24-2009 |
20100019402 | MOLDING METHOD FOR AN OPTICAL ELEMENT AND OPTICAL ELEMENT MOLDING APPARATUS - In a molding apparatus in which upper and lower dies are held in a bearing, there are provided pipes for introducing N | 01-28-2010 |
20100072643 | BINDER OF ENERGIZED COMPONENTS IN AN OPHTHALMIC LENS - This invention discloses methods and apparatus for providing an ophthalmic lens with an energy source incorporated therein. | 03-25-2010 |
20100102465 | PLASTIC LENS MOLDING METHOD - A plastic lens molding method includes: preparing a lens preform having the temperature equal to or higher than a glass transition point temperature; and molding a lens by compressing the lens preform having the temperature equal to or higher than the glass transition point temperature, the compressing of the lens preform being performed by a mold providing a finished lens dimension at a constant temperature equal to or lower than the glass transition point temperature. | 04-29-2010 |
20100176523 | Device for and Method of Manufacturing Optical Part - A device to manufacture an optical component, wherein a fixed metal mold | 07-15-2010 |
20100187704 | METHOD FOR MAKING PRISM SHEET - A method for making a prism sheet includes: providing a cutting device comprising a cutter, a table plate, and a control unit, the table plate controlled to move up and down by the control unit, and the cutter having a blade rotatable; providing a mold insert preform on the table plate, the mold insert preform having a flat surface; moving the cutter to etch the flat surface of the mold insert preform along a first direction, and simultaneously driving the table plate to move up and down by the control unit in a first predetermined manner to form first elongated depressions in the flat surface; moving the cutter to etch the flat surface of the mold insert preform along a second direction to form second elongated depressions in the flat surface, thereby forming a mold insert; using the mold insert to form the prism sheet by injection molding method. | 07-29-2010 |
20100201012 | Lens surface with combined diffractive, toric, and aspheric components - In one aspect, the present invention provides an intraocular lens (IOL) that includes an optic comprising an anterior surface, a posterior surface, and a plurality of diffractive zones disposed on one of those surfaces. The surface having the diffractive zones has a profile characterized by a combination of aspheric and toric components. | 08-12-2010 |
20100244291 | IMPRINTING METHOD FOR MAKING OPTICAL COMPONENTS - An imprinting method for making optical components includes: providing an imprinting mold, the imprinting mold comprising a molding surface and a molding portion formed on the molding surface; providing a substrate comprising a first surface, the first surface comprising a plurality of supporting areas arranged in an array, each of the supporting areas configured for supporting a mass of molding material; applying a mass of molding material on each of the supporting areas; pressing the imprinting mold on each mass of the molding material; and solidifying the imprinted molding material to form the optical components. | 09-30-2010 |
20100264556 | DELENSING OF OPHTHALMIC LENSES USING GAS - Contact lens delensing methods are described, and the present delensing methods include using a gas to facilitate separation of a polymerized contact lens product from a contact lens mold member. The contact lens mold member is compressed to deform a portion of the mold member, and gas, such as air, is directed toward the polymerized contact lens product in contact with the portion. The contact lens mold member can be compressed as the mold member and lens product rotate. A vacuum device can be used to separate the polymerized contact lens product from the contact lens mold member after compressing the portion of the mold member and directing the gas towards the mold member. Delensing systems used to practice the present methods are also described. | 10-21-2010 |
20100270694 | CONTACT LENS STOCK HOLDING APPARATUS - The present invention is directed toward the design of a holding apparatus which allows contact lens lathes to hold contact lens buttons during the contact lens manufacturing process. The holding apparatus functions to hold lenses manufactured from a different sized stock than what the lens manufacturing equipment is designed to hold. | 10-28-2010 |
20100276826 | PROCESS FOR PRODUCING RETARDATION FILM - A method for producing a retardation film by a tenter method, in which a thermoplastic resin film | 11-04-2010 |
20100314786 | METHODS FOR CONTROLLING AND ENHANCING THE QUALITY OF BASE MATERIALS EMPLOYED FOR THE PRODUCTION OF SEMI-FINISHED OPHTHALMIC LENSES - Optical qualities of a production lot of base material used in the fabrication of semi-finished lenses may be accurately determined by employing chipper plate samples produced from the base material in accordance with aspects of the present invention. In various implementations of the present invention, the chipper plates samples may be fabricated by subjecting base material to an extended cycle time and temperature profile using a mold having cavities of different thicknesses. The resulting chipper plates provide an improved indication of the color of semi-finished lenses molded from the production lot as well as an improved indication of resin stabilizer defects that may be utilized during a pelletizing process to control and enhance the quality of a production lot. Furthermore, the chipper plates may be provided by suppliers as samples of a production lot to enable customers to base purchasing decisions on a reliable and accurate measure of optical properties. | 12-16-2010 |
20110031637 | Lens Blocking and Deblocking Method and Related Device - A method of deblocking a lens component ( | 02-10-2011 |
20110074056 | METHOD FOR MANUFACTURING SPHERICAL FRESNEL LENS - Manufacturing spherical Fresnel lens includes providing a first optical element with a regular hexagonal first Fresnel micro-lens in the center of the first optical element and six regular hexagonal second Fresnel micro-lens arrayed around the first Fresnel micro-lens. One edge of the second Fresnel micro-lens is connected to one edge of the first Fresnel micro-lens. The first optical element is stressed to yield a spherical cap configuration of the first optical element, and a second optical element is provided matched to the first optical element, and including a plurality of Fresnel micro-lens. The second optical element is bent into a curve shaped configuration having a curvature as the bent first optical element, and a number of bent second optical elements are assembled around the bent first optical element in sequence to form a hemispherical-shaped configuration. | 03-31-2011 |
20110089590 | ENHANCED SEPARATION OF INJECTION MOLDED MICROLENSES FOR HIGH VOLUME MANUFACTURING - A method and system for enhanced demolding of injection molded optical devices are disclosed. In one embodiment the system includes a metal moldplate without a coat of release layer and a curing device that generates high intensity pulses of UV light. The method includes: providing a moldplate made of a predetermined moldplate material; directly injecting optical material into cavities of a moldplate without a release layer; rapidly curing the injected optical material with high intensity pulses of UV light such that a predetermined optical device is formed; and separating the thus formed optical device from the cavities of the moldplate due to a differential thermal expansion between the optical device material and the moldplate material. | 04-21-2011 |
20110101552 | METHOD FOR MAKING A COLORED CONTACT LENS - The present invention relates to a method for the manufacture of a contact lens with a printed image thereon, in particular a silicone hydrogel contact lens with a printed image thereon, comprising applying one or more ink drops to at least a portion of at least one molding surface of a lens mold, wherein each ink drop is sufficiently flat, that the forces exerted by the mold surface to the ink drop surface in the area where they make contact, are higher than the forces exerted by the flowing lens forming material to the facing surface of the ink drop, and wherein the ink material and the lens forming material are sufficiently immiscible or not miscible at all. | 05-05-2011 |
20110147960 | METHOD OF REMOVING EXCESS LENS FORMING MATERIAL FROM A MOLDED OPHTHALMIC LENS SUCH AS A CONTACT LENS - There is described a method of removing excess lens forming material from a molded ophthalmic lens ( | 06-23-2011 |
20110193248 | Method and Appartus for Making Retarder in Stereoscopic Glasses - 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. | 08-11-2011 |
20110198766 | METHOD AND APPARATUS FOR PRODUCING OPTICAL FIBER - An optical fiber producing method and apparatus are provided in which sufficient pulling tension is applied to an optical fiber to enhance the twisting efficiency without affecting winding tension of a winding bobbin, whereby the PMD of the optical fiber can be reduced. In a method of producing an optical fiber in which, in a path where an optical fiber | 08-18-2011 |
20110227239 | METHOD OF MOLDING - There is provided a method of molding which is capable of more highly precisely molding a molded article to be molded such as a lens than conventional technologies. | 09-22-2011 |
20110304065 | METHOD FOR MAKING OPTICAL DIFFUSER - A method for making an optical diffuser includes the following steps: providing a pressing plate and a substrate; coating a layer of PTFE film on the pressing plate; sandblasting and grinding the layer of PTFE film to form a number of uniformly distributed micro-concaves; coating a layer of acrylic resin onto the substrate; pressing the layer of PTFE film with the pressing plate onto the layer of acrylic resin to form a number of uniformly distributed raised micro-dots on the layer of acrylic resin; and separating the layer of acrylic resin from the layer of PTFE film to obtain an optical diffuser. | 12-15-2011 |
20120068371 | PROCESSES FOR IMPROVED OPTICAL FILMS - A method of forming an optical film results in a film having a useful central 60% portion with a caliper variation of about 5% or less of an average thickness of the film. The method includes selecting a draw ratio λ in a first in-plane stretch direction, setting an effective draw gap defined by a length L and a width W, and stretching a polymer film at the draw ratio and effective draw gap. The effective draw gap is set such that the stretching step fits into one of two regimes, the first regime referred to as a uniaxial regime and characterized by a β equal to or less than about 1.0; and the second regime referred to as a planar extension regime and characterized by a β equal to or greater than about 10.0. The disclosure also describes an optical film formed by the method. | 03-22-2012 |
20120256335 | SCINTILLATOR PANEL AND METHOD FOR MANUFACTURING THE SAME - Provided is a scintillator panel having excellent sharpness and graininess. In the scintillator panel, the scintillator panel and a surface of a planar light receiving element can be brought into uniform contact with each other within the surface, and deterioration of sharpness between the scintillator panel surface and the surface of the planar light receiving element is reduced. Furthermore, a method for manufacturing such scintillator panel is also provided. The scintillator panel is provided by arranging a phosphor layer composed of phosphor columnar crystal on a polymer film substrate. A leading end portion of the phosphor columnar crystal is flattened by pressurized thermal processing. | 10-11-2012 |
20130093109 | Retroreflective Sheet Structure - A retroreflective sheet structure ( | 04-18-2013 |
20130200540 | METHOD OF MANUFACTURING A LENS FOR PROVIDING AN OPTICAL DISPLAY - The invention concerns a method of manufacturing a lens ( | 08-08-2013 |
20130200541 | STAMPER, ARTICLE AND METHOD FOR MANUFACTURING THE SAME - The invention relates to a stamper in which an oxide film having a fine concave-convex structure made up of a plurality of fine pores having an aspect ratio represented by [the depth of the fine pores/the average interval between the fine pores] of 1 to 4 is formed on the surface of an aluminum base material which is made of aluminum having a content of Ti of 150 ppm to 500 ppm, a content of B or C of 1 ppm to 50 ppm and a purity of 99.9% or more. According to the invention, it is possible to provide a low-cost stamper in which the emergence of a pattern derived from the traces of crystal grains on the surface of the oxide film is suppressed, an article having a favorable appearance, which is manufactured using the above stamper, and a method for manufacturing the above. | 08-08-2013 |
20140027936 | Retroreflective Sheet Structure - A retroreflective sheet structure ( | 01-30-2014 |
20140042650 | PROCESS FOR MANUFACTURING A HEADLIGHT LENS FOR A MOTOR VEHICLE HEADLIGHT - A process for manufacturing a headlight lens for a vehicle headlight, wherein a blank is molded from transparent plastic material by means of an injection molding process, and wherein the blank is subsequently blank-molded by means of a final contour mold to form the headlight lens. | 02-13-2014 |
20140084502 | METHOD FOR PRODUCING WAFER LENS, DEVICE FOR PRODUCING WAFER LENS, AND METHOD FOR PRODUCING OPTICAL ELEMENT - A purpose is to provide a method for producing a wafer lens and a device, capable of forming a wafer lens provided with a plurality of optical elements having intended properties. In order to adjust the gap between a molding die | 03-27-2014 |
20140124967 | OPTICAL ELEMENT MANUFACTURING METHOD AND SURFACE PROCESSING DEVICE - A method includes: a main body processing step of forming a lens main body having the concave lens surface; a molding step of coating a molding resin on the concave lens surface, pressing a microstructure forming mold, having a molding surface portion transferring the reflection preventing part formed on the surface of a deformable base body part thereof, against the concave lens surface, and curing the molding resin; and a mold release step of exerting a moment of a force relating to the surface top of the molding surface portion so as to deform the base body part to gradually separate the microstructure forming mold from an outer peripheral side thereof in a direction in which the concavo-convex shape of the reflection preventing part extends, thereby performing mold release. | 05-08-2014 |
20140217627 | METHOD FOR MANUFACTURING OPTICAL ELEMENT AND DEVICE FOR MANUFACTURING SAME - A method for manufacturing an optical element, the method including: heating an optical element material by suspending it in a gas; supplying the heated optical element material from a direction which intersects a central axis interconnecting centers of a first mold and a second mold to a space between molds in a non-contact state, the space between molds being a space between the first mold and the second mold; pressurizing the optical element material supplied to the space between molds by the first mold and the second mold; and cooling the pressurized optical element material. | 08-07-2014 |
20140319710 | METHOD OF MAKING LIGHT REDIRECTING FABRIC - A flexible sheet-form optical system, referenced to as a light redirecting fabric, which has a fabric-like behavior and light redirecting properties. The light redirecting fabric comprises a soft and flexible sheet of optically transmissive material, such as plasticized polyvinyl chloride. A surface of the flexible sheet includes a plurality of parallel slits having spaced-apart walls configured to reflect light by means of a total internal reflection. At least a portion of daylight incident onto the sheet is internally redirected at bend angles greater than the angle of incidence. Disclosed also are a method and apparatus for making the light redirecting fabric. The method includes steps of mechanical slitting of the flexible sheet with a blade, elastic stretch-elongation of the sheet along a direction perpendicular to the slits, and making at least a portion of the sheet elongation irreversible. | 10-30-2014 |
20150061168 | POLYMERS FOR INTRAOCULAR LENSES - The present invention provides optic portions, intraocular lenses, and polymers for use in manufacturing optic portions and intraocular lenses. The optic portions include a polymer that comprises (a) one or more alkoxyalkyl methacrylate monomers and/or one or more alkoxyalkyl acrylate monomers that are incorporated in the polymer; (b) one or more hydroxyalkyl methacrylate monomers and/or one or more hydroxyalkyl acrylate monomers that are incorporated in the polymer; and (c) optionally, one or more crosslinking agents that are incorporated in the polymer. | 03-05-2015 |
20150293269 | METHOD AND DEVICE FOR PRODUCING A LENS WAFER - A device for producing a lens wafer with a plurality of microlenses with an upper die and a lower die for embossing of the lens wafer from a fluid embossing mass which has been delivered between the dies, curing means for curing of the embossed lens wafer, characterized in that at least one release element for detachment of the cured lens wafer prior to curing can be located between the lower die and the upper die. | 10-15-2015 |
20160060409 | OPTICAL FILM AND DISPLAY DEVICE INCLUDING SAME - An optical film including a polymer including a repeating unit A including a repeating unit represented by the following Chemical Formulas 1 to 3, or a combination thereof; and a repeating unit B derived from a monomer having an unsaturated bond copolymerizable with the repeating unit A, wherein the optical film has a short wavelength dispersion of an in-plane phase-difference value (R | 03-03-2016 |
20160185056 | SYSTEM AND METHOD FOR MANUFACTURING AN ULTRASOUND PROBE LENS - A method includes the steps of measuring a surface profile of a first component, determining a profile of a second component, the profile of the second component being configured to correspond to the surface profile of the first component, and manufacturing the second component utilizing additive technology in accordance with the determined profile. | 06-30-2016 |