| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 451042000 | Lens | 40 |
| 20080280539 | Optical component fabrication using amorphous oxide coated substrates - A method of fabricating or preparing an optical component, such as a mirror, using an amorphous oxide coated substrate is presented. An amorphous oxide coating is applied to an optical substrate. An assessment of surface roughness of the coated surface is performed. The coated surface is polished based on the assessment. Initial assessments can be conducted and polishing can be performed based on those initial assessments prior to applying the coating to better prepare the surface for the coating. Each assessment can assess the surface's Mid-Spatial Frequency Roughness (MSFR), High-Spatial Frequency Roughness (HSFR), or both. The performing of the assessments, polishing and/or coating can be computer-controlled. This process is ideal in the fabrication of an optical component formed from a substrate with a near-zero coefficient of thermal expansion. An optical component fabricated in this manner is also presented. | 11-13-2008 |
| 20090047874 | Lens surface cutting apparatus and lens surface cutting method for spectacle lens, and spectacle lens - A lens surface cutting method for a spectacle lens includes the steps of calculating the mean curvature of a lens surface ( | 02-19-2009 |
| 20090117830 | Ophthalmic roughing wheel - Ophthalmic rough-cut and polishing wheels having a plurality of swarf clearance grooves formed across the shaping face are described. The grooves are spaced around the shaping face of the wheels, wherein the slots are configured so as to be substantially angled either towards or away from one another. | 05-07-2009 |
| 20090163118 | APPARATUS AND A METHOD OF POLISHING AN OPTICAL SURFACE; AN OPTICAL COMPONENT; AND A METHOD OF MANUFACTURING A POLISHING TOOL - An apparatus for polishing an optical surface, in particular an optical surface of a spectacle lens, is disclosed. The apparatus comprises a polishing head having a polishing tool, the polishing tool being provided along a common axis, one behind another, with a first preferably rigid member, a second elastic member, and a polishing lining, each extending essentially radially relative to the axis. The second elastic member is configured to be increasingly soft in a radial outward direction. Moreover, a method of polishing an optical surface, in particular a surface of a spectacle lens, an optical component manufactured according to that method, in particular a spectacle lens, as well as a method of manufacturing a polishing tool are disclosed. | 06-25-2009 |
| 20100035524 | METHOD OF PRODUCING OPTICAL ELEMENT, AND OPTICAL ELEMENT - While having a milling cutter, equipped with a rotary shaft and a blade portion projecting in the direction intersecting with the axial line direction of the rotary shaft, rotated about the axial line of said rotary shaft, the milling cutter and the base material for forming an optical device are relatively moved in the cutting-in direction and the feed direction to form machining faces that constitute the device face. At the boundary part of the machining faces, the rotary shaft is directed in the direction orthogonal to the boundary part to cut the lower machining face of two adjacent machining faces. | 02-11-2010 |
| 20100041318 | METHOD FOR PRODUCING A SPECTACLE LENS - A method for producing a semi-finished product for a plus or minus power lens having a toroidal or atoroidal back that is configured as a prescription surface. According to the method, a blank having a diameter D | 02-18-2010 |
| 20100112907 | METHOD AND DEVICE FOR PROCESSING LENS - The optical surface of a lens ( | 05-06-2010 |
| 20100151772 | Polishing head for the zonal machining of optical spectacle surfaces - A polishing head for spectacle surfaces with a basic body for attachment to a polishing spindle, with an elastic supporting part for a polishing film which is or can be attached, wherein the supporting part comprises a recess with a wall surface and a depth t, and the polishing film comprises at least one hole, wherein the hole forms an access to the recess, wherein the polishing film comprises in addition to the hole at least one further hole, which is arranged in the area of an edge of the recess and is at a radial distance a from the hole, wherein the further hole forms an outlet channel for polishing agent from out of the recess or the wall surface is raised at least over one section of the depth t, and/or with reference to a circumference, at least in segments in relation to the rotational axis D at an angle α, and/or the supporting part comprises at least one groove which is provided in the front side with a groove base and a depth t | 06-17-2010 |
| 20100159809 | Polishing device with potary joint - A polishing device for polishing optical lenses having a tiltable base part for directly or indirectly receiving a polishing plate, which base part is connected to a polishing spindle having an axis of rotation D in order to be rotationally driven, wherein a rotary joint for supplying a polishing agent is provided, which rotary joint is at least partly arranged opposite said polishing spindle, relative to the base part, and a coupling element is provided by means of which the rotary joint can be detachably push-fitted or clipped onto a polishing spindle. A method for polishing selected zones of aspherical lenses which are not rotationally symmetric using a polishing plate which is guided by a polishing spindle so as to be tiltable, wherein during polishing, a polishing agent is introduced between said polishing plate and the lens via a rotary joint arranged between said polishing spindle and said polishing plate. | 06-24-2010 |
| 20100190415 | Device and a method for polishing lenses - A method for polishing lens surfaces, in which a) prior to the polishing process, for the purpose of determining an abrasion profile, at least one point of a workpiece is polished by means of a polishing tool to be used, using at least one pre-defined parameter; b) the polishing abrasion thus achieved on the workpiece side is determined by measuring; c) on the basis of the abrasion profile, at least one parameter is set for a subsequent polishing process, and the polishing process is completed at least partially. A method for polishing lens surfaces, in which the polishing point is places at least outside of the workpiece centre at a distance a from a plane which is tensioned by the tool spindle axis and the workpiece spindle axis. The invention furthermore relates to a lens polishing machine in which at least one movement axis is provided, by means of which a distance a between the polishing point and a plane which is tensioned by the tool spindle axis and the workpiece spindle axis can be set and/or changed. | 07-29-2010 |
| 20100297919 | LENS BLOCKING METHOD AND RELATED DEVICE - A method for blocking an optical lens ( | 11-25-2010 |
| 20100330884 | Diatomaceous Earth-Containing Slurry Composition And Method For Polishing Organic Polymer-Based Ophthalmic Substrates Using The Same - The present invention provides a slurry composition and method for polishing organic polymer-based ophthalmic substrates. The slurry composition according to the invention includes an aqueous dispersion of particles of diatomaceous earth and, optionally, particles of abrasives selected from alumina, zirconia, silica, titania and combinations of the foregoing. Slurry compositions according to the invention can be used to polish all types of organic polymer-based ophthalmic substrates, but are particularly useful for polishing organic polymer-based ophthalmic substrates having an index of refraction greater than 1.498 because they remove such materials at a greater efficiency than conventional slurry compositions. | 12-30-2010 |
| 20110009035 | Polishing machine for lenses and method for polishing a lens using a machine tool - A polishing machine for lenses with at least one first polishing spindle having a polishing axis (K) and a tool holder disposed on the first polishing spindle for a first polishing disc designed as a tool, further comprising at least one first workpiece spindle having a rotary axis (C) and a workpiece holder disposed on the first workpiece spindle for a lens, wherein the workpiece holder and the tool holder are disposed so as to be movable in translation in the direction of a telescoping axis (Z) disposed parallel to the polishing axis (K) and in the direction of a translation axis (X) disposed at right angles to the rotary axis (C).; The polishing machine further has at least one first tool changer for changing the tool and a working chamber formed of at least one wall spatially limiting a spray of polishing medium during processing, wherein at least the workpiece holder and the tool holder are disposed within the working chamber, wherein the first tool changer is disposed at least partially within the working chamber during operation. | 01-13-2011 |
| 20110124272 | Lens Blocking and Deblocking Method and Related Device - A method for blocking and/or deblocking an optical lens ( | 05-26-2011 |
| 20120178345 | Abrasive wheel with closed profiles in cutting surface - Ophthalmic abrasive wheel including a plurality of swarf clearing grooves formed across the cutting surface and having closed profiles such that the swarf clearing grooves do not open to or exit the side of the abrasive wheel. The swarf clearing grooves are spaced around the cutting surface of the wheel and are configured so as to be substantially angled either towards or away from one another. | 07-12-2012 |
| 20120289127 | LENS SPHERICAL SURFACE GRINDING METHOD USING DISH-SHAPED GRINDSTONE - A spherical core type lens grinding device ( | 11-15-2012 |
| 20120295518 | Method for Mounting an Optical Lens to be Polished - Method for mounting an optical lens ( | 11-22-2012 |
| 20130052918 | METHOD OF MANUFACTURING EYEGLASS LENS - An aspect of the present invention relates to a method of manufacturing an eyeglass lens, which comprises a step of conducting polishing processing of a non-optical surface of a semifinished lens, one surface of which is an optical surface and the other surface of which is the non-optical surface, to create an optical surface. The semifinished lens comprises an acrylic coating on an optical surface of a lens substrate, a surface of the acrylic coating having a contact angle relative to water of equal to or less than 90°, prior to the polishing processing, a protective film is adhered through an adhesive layer of the film to the surface of the acrylic coating, and the polishing processing is conducted by polishing a non-optical surface of the lens substrate in a state where the protective film surface is secured in a block jig. | 02-28-2013 |
| 20140024296 | NON-PLANAR GLASS POLISHING PAD AND METHOD OF MANUFACTURE - A polishing pad, for polishing of a work piece having portions that are non-planar, the polishing pad comprising a first side and a second side of the polishing pad. The first side is substantially flat, and the second side is configured to polish the non-planar work piece. The polishing pad further comprises a concentric annular channel in the polishing pad, wherein the concentric annular channel comprises a channel surface, wherein the second side of the polishing pad comprises an inner surface, the channel surface, and an outer surface, and wherein the channel surface is recessed relative to the inner surface and outer surface. The polishing pad further comprises a plurality of islands located within the concentric annular channel, wherein the islands comprise an island surface that is raised relative to the channel surface. | 01-23-2014 |
| 20140038494 | DEVICE AND METHOD FOR MACHINING OF AN OPTICAL LENS - A device and a method for polishing of an optical lens by means of rotary tool are proposed, a fixture for the lens being pivotable around a pivoting axis transversely to the axis of rotation by means of a push-rod adjustment and being pivotable up out of a machining position such that the lens can be changed from overhead. This allows a compact structure and easy changing of the lens. | 02-06-2014 |
| 20140073227 | DEVICE AND METHOD FOR MACHINING OF AN OPTICAL LENS - A device and a method for machining, especially for polishing of an optical lens, are proposed, there being both a lens changing apparatus and also a separate tool changing apparatus. The lens changing apparatus is located between a working space and a conveyor apparatus for lenses and is pivotally mounted around a horizontal axis. The tool changing apparatus is located laterally next to the working space. | 03-13-2014 |
| 20140315472 | METHOD AND DEVICE FOR BLOCKING EYEGLASS LENSES - A blocking device and a method for blocking of eyeglass lenses on blocking pieces with a base body, with a blocking piece receiver which is located on the base body for the blocking piece which is to be attached to the eyeglass lens and with a positioning unit which is located on the base body for aligning and holding the eyeglass lens which is to be blocked, the blocking piece receiver and the positioning unit can be fixed on the eyeglass lens by activation being movable relative to one another via a lifting axis, the approach motion between the positioning unit and the blocking piece receiver being limited in the direction of the lifting axis by an adjustable stop means in at least two positions. | 10-23-2014 |
| 20140329442 | Multimaterial Block Piece - The invention provides for a blocking piece comprised of at least two materials having different rigidity/stiffness/hardness, wherein at least one among the two materials is translucent and defines an annular junction surface with respect to the other material. The invention also provides for a process using such a block piece. | 11-06-2014 |
| 20150024663 | COMPONENT MANUFACTURING METHOD AND POLISHING APPARATUS - A component manufacturing method includes causing a holding member to hold a workpiece such that a spherical center of a processed surface of the workpiece is located on a supporting member; rotating the workpiece by rotating the holding member; and polishing the workpiece by moving the supporting member to move the workpiece on a polishing tool, with the spherical center of the processed surface located at a spherical center of a processing surface of the polishing tool. | 01-22-2015 |
| 20150050864 | POLISHING METHOD FOR MACHINING AN OPTICAL SURFACE OF AN OPTICAL LENS AND POLISHING TOOLS SUITABLE THEREFOR - A polishing method for machining an optical surface of an optical lens uses a polishing wheel which has a wheel axis and a polishing face. The polishing wheel is moved in relation to the lens over the surface of the latter along a spiral machining path. The polishing wheel is rotated about the wheel axis, and is (simultaneously) rotated about an axis of rotation oriented perpendicularly to the wheel axis. The rotational speed of the polishing wheel about the wheel axis and/or the axis of rotation is reduced at the spiral center of the movement path. A workpiece fixture for receiving an optical lens stands opposite the polishing wheel, with the workpiece fixture and the polishing wheel being mounted movably in relation to one another along a spiral movement path. The rotational speed of the wheel axis can be coupled kinematically to the rotational speed of the axis of rotation. | 02-19-2015 |
| 20150105002 | TOOL FOR THE POLISHING OF OPTICAL SURFACES - A tool for the polishing of an optical surface has a base which has an active surface facing the optical surface. An intermediate layer is arranged on the active surface of the base. A polishing agent carrier is arranged on the elastic intermediate layer. The elastic intermediate layer projects radially beyond the active surface of the base and the polishing agent carrier projects radially beyond the elastic intermediate layer. | 04-16-2015 |
| 20150353420 | METHOD FOR MANUFACTURING OPTICAL ELEMENT - Provided is a method for manufacturing an optical element from glass after polishing and in which either or both of a cleaning liquid used in a cleaning step for the glass after polishing and a rinsing liquid used in a rinsing step after the cleaning step are a liquid that inhibits expansion of cracked parts present on the surface of the glass after polishing. | 12-10-2015 |
| 20160039703 | GLASS LENS BLANK FOR POLISHING, MANUFACTURING METHOD THEREFORE, AND OPTICAL LENS MANUFACTURING METHOD - A glass lens blank for polishing in which a thickness of a defect-containing layer is suppressed to a minimum and thus it is possible to shorten the processing time required for grinding and polishing the glass lens blank for polishing after press-molding, a method of manufacturing the same, and a method of manufacturing an optical lens. A glass lens blank for polishing of which at least a main surface is a press-molding surface, wherein a defect-containing layer formed on the main surface has a thickness of 50 μm or less. | 02-11-2016 |
| 451043000 | Edging | 12 |
| 20080207092 | Method of Centering a Non-Edged Ophthalmic Lens in Which the Centering Point of the Lens is Offset Relative to Its Geometric Center - The invention relates to a method for centering an uncut single vision ophthalmic lens ( | 08-28-2008 |
| 20090068931 | METHOD OF BEVELING AN OPHTHALMIC LENS BLANK, MACHINE PROGRAMMED THEREFOR, AND COMPUTER PROGRAM - The present invention is directed to a machine programmed to edge an ophthalmic lens blank. The machine includes an edger device for forming a bevel in a peripheral edge of the lens blank, a central processing unit operably associated with the edger device for controlling operation thereof, and a computer program stored on a medium in communication with the central processing unit. The computer program includes a first instruction set operably causing the edger device to form a bevel in a peripheral edge of a lens blank. A second instruction set operably causes the edger device to form a step in the peripheral edge intermediate an apex of the bevel and an interface between the peripheral edge and a major surface of the lens blank. A method of controlling an edger device for edging an ophthalmic lens blank and a computer program are also disclosed. | 03-12-2009 |
| 20090068932 | METHOD AND DEVICE FOR TRIMMING A LENS BY CUTTING SAID LENS - The present invention relates to a device and to a method for shaping an optical lens. According to the invention, a selection is provided between either a first tool ( | 03-12-2009 |
| 20090093194 | METHOD AND A DEVICE FOR EDGING AN OPHTHALMIC LENS FOR MACHINING THE EDGE FACE OF THE LENS TO A DESIRED CURVE - A method and device for edging an ophthalmic lens, includes turning the lens about a first axis of rotation and working on the edge face of the lens with a beveling grindwheel or cutter having a beveling groove or chamfer and mounted to rotate about a second axis of rotation. While machining the edge face of the lens with the beveling grindwheel or cutter, the first and second axis of rotation are moved dynamically relative to each other as a function of the angle of rotation of the lens about the first axis of rotation, in such a manner that during machining of each portion of the edge face of the lens, the tangent to the curve of the working portion of the beveling groove or chamfer is substantially parallel to the tangent to the curve of the bevel desired on the portion of the edge face. | 04-09-2009 |
| 20090163119 | Method for Machining Chamfer Portion of Semiconductor Wafer and Method for Correcting Groove Shape of Grinding Stone - According to the present invention, in a method for subjecting a roughly ground chamfer portion of a semiconductor wafer to helical grinding by relatively inclining the wafer and a second grinding stone to perform precise grinding, an edge portion of a discoid truer is formed into a vertically asymmetrical groove shape of a first grinding stone by using the first grinding stone having a vertically asymmetrical groove formed on a periphery thereof to grind the edge portion of the truer by the groove of the first grinding stone without being relatively inclined, a groove is formed on a periphery of the second grinding stone by relatively inclining the truer and the second grinding stone to subject the second grinding stone to helical grinding, and the chamfer portion of the wafer is precisely ground based on helical grinding by relatively inclining the semiconductor wafer with respect to a direction of the groove formed on the periphery of the second grinding stone. As a result, there is provided the method for machining a chamfer portion of the semiconductor wafer, which can machine the chamfer portion of the wafer into a vertically symmetrical shape when subjecting the chamfer portion of the semiconductor wafer to helical grinding, e.g. a resin grinding stone and the like. | 06-25-2009 |
| 20090305614 | Method and a device for working the periphery of an ophthalmic lens for eyeglasses - A method of working the periphery of an ophthalmic lens (L), the periphery of the lens possessing an edge face (C) and the method including edging the edge face of the lens by machining with a first grindwheel ( | 12-10-2009 |
| 20100009603 | MACHINE FOR SHAPING AN EYEGLASS LENS, THE MACHINE BEING PROVIDED WITH A TURNABLE TOOL-CARRIER HAVING A PLURALITY OF WORKING TOOLS MOUNTED THEREON - The machine includes: elements for supporting the lens and for driving it in rotation about a first axis of rotation, the rotation of the lens being driven by first driver element, a tool-carrier mounted to turn about a second axis of rotation, turning of the tool-carrier being driven by second driver element, a plurality of working tools mounted on the tool-carrier to rotate about tool axes, with at least two of the tools including tools for shaping the periphery of the lens for shaping having distinct tool axes, third driver element for driving relative spacing movements between the first axis of rotation and the second axis of rotation, swivel elements for enabling the tool-carrier to be pivoted relative to the first axis of rotation about a third axis of rotation that extends substantially transversely to the first axis of rotation. | 01-14-2010 |
| 20100105293 | SPECTACLE LENS EDGING METHOD - A lens holder ( | 04-29-2010 |
| 20100112908 | METHOD OF SHAPING AN OPHTHALMIC LENS - A method of shaping an ophthalmic lens includes machining the edge face of the lens by at least one rotary tool having an axis of rotation movable relative to the lens axis, both in rotation and radial and axial translation. These movements are controlled so that the edge face of the lens presents a profiled shape with an engagement ridge suitable for engaging in a bezel of eyeglasses and first and second margins. Given first and second longitudinal curves of the first and second margins, respectively, the edge face of the lens is machined in such a manner that, at each axial section of the lens, the traces in the axial section of the first and second longitudinal curves present first and second distances from the axis of the lens, with the difference (rs) therebetween being a function of the position of the plane of the axial section under consideration. | 05-06-2010 |
| 20120058714 | METHOD OF SHAPING AN OPHTALMIC LENS - A method of shaping an ophthalmic lens for mounting in a mixed surround of an eyeglass frame that presents at least one half-rim, includes:
| 03-08-2012 |
| 20140329443 | Multi Part Blocking Piece - The invention refers to a blocking piece, comprising at least two parts, at least one part being designed for multiple use and at least one part being designed for single use, wherein a surface for supporting one face of an optical article to be blocked is constituted at least in part by the reusable part and at least in part by the single use part. | 11-06-2014 |
| 20150140905 | METHOD FOR CUTTING-OUT A MULTI-LAYER OPHTHALMIC LENS - A method for cutting-out a multi-layer ophthalmic lens ( | 05-21-2015 |
