Abstract: In a process for polishing the chamfered peripheral part of a wafer using a polishing cloth while supplying a polishing slurry in order to improve productivity of the process by reducing a polishing time, at least two steps of polishing processes are performed in sequence. The process comprises a first polishing process to polish a particular part, e.g. the part corresponding to the {110} plane of a peripheral part of the wafer and a second polishing process in which the whole part of a peripheral part of the wafer is polished for finishing by means of varying a hardness of the polishing clothes and/or a particle size of abrasives in the slurry such as the hardness of the polishing cloth in the second polishing process being softer than that of in the first polishing process and a particle size of abrasives in the slurry in the second polishing process being finer than that of in the first polishing process.

Abstract: In a conformable lap and related method for finishing ophthalmic lens surfaces, a rigid base surface of the lap defines a nominal ophthalmic lens curvature corresponding to a predetermined range of curvatures. A work surface of the lap is defined by a thin, hard, polymeric material extending adjacent to the base surface for contacting a selected ophthalmic lens surface and conforming to the curvature of the selected surface. A selectively conformable substance consisting of a mixture of thermoplastic and metallic particles forms a layer extending between the rigid base surface and the work surface, and is selectively changeable between solid and non-solid forms.

Abstract: A lens surface shape is created by a near-finish surface forming rough-cutting step of creating a near-finish surface shape analogous to a lens surface shape based on a prescription of a spectacle lens from a spectacle lens base material 11 by numerically controlled cutting, and a finish-cutting step of creating the lens surface shape based on the prescription of the spectacle lens from the near-finish surface shape by numerically controlled cutting. According to this method of producing a spectacle lens, all kinds of spectacle lenses including an inner surface progressive power lens can be produced with high productivity. A complex curved surface can be mirror-polished by a polishing tool, which includes an elastic sheet 41 having a curved surface, wherein a workpiece is polished by applying a pressure to the inner surface side of the elastic sheet 41, to stretch the elastic sheet 41 and bring the outer surface side of the elastic sheet 41 into contact with the workpiece.

Abstract: Disclosed herein is a block including a block base configured to support a lens for surfacing or finishing, a cover retained to the base, and a formable material disposed between the base and the cover. Further disclosed herein is a system for blocking a lens including a block base configured to support a lens for processing, a cover retained to the base, a formable material disposed between the base and the cover, and a receptacle configured to receive the base to heat and cool the base. Further disclosed herein is a method for blocking a lens includes heating a block to render the formable material pliable, applying a lens to the block, and cooling the block to render the material non-pliable. A method for blocking a lens includes rendering a formable material of a block pliable, deforming the material with a lens, rendering the formable material non-pliable and causing a vacuum between the formable material and the lens to hold the lens to the block.

Abstract: An apparatus for processing a lens including a displaceable lens-holding unit comprising a holding shaft that holds the lens, and a means for detecting a rotation angle of the holding shaft; a means for processing a peripheral portion of the lens; an elevating and lowering unit that holds the lens-holding unit, wherein the elevating and lowering unit displaces to a first position in a vertical direction in accordance with a processing amount; wherein, when the lens-holding unit is lowered until the lens contacts the means for processing, the elevating and lowering unit is separate from the lens-holding unit, wherein the lens-holding unit is further lowered to the first position in the vertical direction in accordance with the processing amount, and the lens-holding unit presses the lens to the means for processing under a load determined in accordance with a weight of the lens-holding unit.

Abstract: A part-holding fixture is adapted for rotation about a work spindle axis and includes a mounting land that seals a back surface of an optical flat for securing the optical flat to the part-holding fixture and that inclines the back surface of the optical flat through a wedge angle for grinding wedged optical flats at repeatable wedge angles.

Abstract: One aspect is directed to an improved method for polishing an integrated circuit. According to one aspect, metal features deposited on an integrated circuit are polished using electropolishing techniques. Because electropolishing is used, polishing avoids removal of softer insulating materials of the integrated circuit.

Abstract: This invention improves aspects critical to the reflector making process currently in practice. If implemented, they would ensure achieving a better distributing of light energy to a planned design. A reflector surface definition of “specularity” defined by its “solid angle” measurement and a repeatable execution process are required. That is accomplished by putting the finish of controlled specularity on a hardened steel tool. When the forming is being completed with the reflector closely against the tool, the tool's specularity is replicated on the reflector by forcing the reflector surface to yield in extra compression yield failure and permanently set the desired specularity in the reflector. Next, a physical as well as analytical model of the reflection behavior, based on the solid angle geometry, is provided. That model may be used in photometric design or for results confirmation.

Abstract: A cleaning apparatus for a lens defining opposed top and bottom surfaces and a peripheral edge. The cleaning apparatus comprises a rotatable base having a plurality of arms pivotally connected thereto and rotatable therewith. The arms are configured to releasably engage the peripheral edge of the lens. The cleaning apparatus further comprises a steam conduit including a dispensing nozzle which is selectively positionable in a prescribed orientation relative to the lens mounted within the arms, the dispensing nozzle being operative to propel steam towards at least one of the top and bottom surfaces of the lens while the lens is being spun by the rotation of the base and the arms.

Abstract: An eyeglass lens or lens pattern shape capture system comprises a digitizer having a position indicator and a coordinate detecting surface. The digitizer generates positional data corresponding to the circumference of one of a lens and a lens pattern positioned on the detecting surface. A central processing unit is operably associated with the digitizer, and receives the positional data from the digitizer. An instruction set processes the positional data into trace data usable by an edger device.

Abstract: A tool, apparatus, and method for polishing objects having a wide variety of materials and shapes including precision optical surfaces, injection mold inserts, and thin film coating dies; and in particular, objects having deeply concave precision surfaces. The tool has a rotatably drive wheel engaged with a polishing wheel by use of a polishing foil formed as a flexible belt. The polishing wheel may have a cavity within, such cavity being inflatable using a variety of fluids having a range of physical properties. The polishing wheel is adjustably positionable against an object to be polished by actuating means joined thereto. The apparatus comprises a multi-axis computer controlled machine to which the tool is attached.

Abstract: In a lens periphery edge processing apparatus comprising lens rotating shafts 16, 17 for putting and holding an objective lens therebetween, a carriage 15 rotatable around a pivot, and a grindstone rotating shaft 9 provided with a grindstone 5 for grinding the objective lens L, the lens rotating shaft 17 is provided with a reference globe 70 having a predetermined radius.

Abstract: An end face polishing apparatus has a lapping board mounted to undergo rotation and revolving movement, a lapping member having a polishing surface and disposed on the lapping board for rotation and revolving movement therewith, a polishing fixture for supporting a workpiece having an end face, and a pressing member. During a polishing operation, preselected portion thereof to bring the end face of the workpiece into pressure contact with the polishing surface of the lapping member and to dispose the preselected portion at a position closer to the polishing surface than to a center of gravity of the polishing fixture to thereby polish the end face of the workpiece during rotation and revolving movement of the lapping board.

Abstract: A tool for polishing an optical surface of a lens includes a rigid support including a support surface, a first layer called the buffer made from an elastic material and covering at least part of the support surface, and a second layer called the polisher and covering at least part of the buffer. The buffer has a first surface adhering to the support surface and a second surface opposite the first surface. The polisher has a first surface adhering to the second surface of the buffer and a second surface called the polishing surface opposite the first surface and adapted to polish the optical surface of the lens by rubbing against it. The polishing surface is a toric surface and, to be able to polish an atoric optical surface, the buffer is adapted to be compressed elastically and the polisher is adapted to be deformed to espouse the atoric surface. Applications include polishing atoric optical surfaces.

Abstract: The present invention relates to a method and a device for machining glass-lenses using a glass-lens machining apparatus with computerized numerical control. The method of the present invention comprises the following steps: introducing opto-metrical data relating to the glasses support into the computer of the apparatus control device which is provided with a host connection; introducing into the computer the data corresponding to the shape of a selected rim for glasses; introducing into the computer data about the material of the non-machined lens; calculating the required diameter of the glass-lens and displaying the result; introducing a non-machined lens into the apparatus; optionally calculating, e.g. in the host computer, the gradient of a bevel, groove or bezel on the shaped glass-lens according to the data introduced or to the front or back curves which are inherent to the existence of surfaces; and carrying out the computerized numerical-control machining of the non-machined lens.

Abstract: The invention relates to a device for loading and unloading optical workpieces, for an optical machine. The device comprises a loading arm (24) which is pivotally driven about an axis (A) and is pivoted in controlled movement sequences on the optical machine between a workpiece magazine (26, 28) and the operating position. The outer end of the loading arm is provided with a device (30) for receiving and placing workpieces. According to the invention, the swivelling axis of the loading arm is the central axis of a spindle (40) which rotates in both directions of rotation (D+, X−) and which can be driven linearly in a lifting motion in both axial directions (X+, X−) by means of drive elements, as well as guided in guide elements in a rotating and displacing manner. The loading arm (24) is fixed to the spindle.

Abstract: A lens-holding shaft 41 displaces a lens 1 towards a main rotating tool 50 for processing the peripheral portion of the lens 1. A long hole 115 penetrating a waterproof case 101 is formed in the waterproof case 101 along the locus of displacement of the lens-holding shaft 41 and the lens-holding shaft is inserted through the long hole 115. At the outside of the waterproof case 101 along the long hole 115, a flexible water-resistant sliding shutter 130 is disposed in a manner such that the sliding shutter 130 can be freely displaced. The sliding shutter 130 is connected with the lens-holding shaft 41. A guide member 150 containing the sliding shutter 130 is bent at a position before the main shaft 51.

Abstract: An eyeglass lens processing apparatus for processing a periphery of an eyeglass lens includes: a lens rotation unit which includes a first motor and rotates lens rotating shafts by first torque of the first motor; an axis-to-axis distance changing unit which includes a second motor and changes an axis-to-axis distance between rotational center axes of the lens rotating shafts and a rotational center axis of the abrasive wheel; a monitor unit which detects the first torque; and a control unit which controls the first or second motor so as to adjust rotational speeds of the lens rotating shafts or pressing pressure exerted on the lens, on the basis of a result of detection of the motor unit, such that the first torque becomes lower than a predetermined allowable torque level which is determined so as not to cause rotational displacement between the lens rotating shafts and the lens.

Abstract: An eyeglass lens processing apparatus for processing a periphery of an eyeglass lens, includes: a lens rotation shaft which holds and rotates the lens, the shaft being rotatable about a first axis; a piercing tool which pierces a hole in the lens; a holder which rotatably holds the piercing tool; and inclination means for relatively inclining the holder with respect to the lens rotation shaft to change inclination of a rotation axis of the piercing tool with respect to the first axis.

Abstract: A polishing puck assembly is provided for use in polishing a fiber optic connector. A slidable weight rests on the fiber optic connector to urge the ferrule of the fiber optic connector to extend below a bottom surface of the puck assembly. The puck assembly can be manipulated relative to polishing material to polish the end of the fiber optic connector. The polishing material can be circular in shape and held by a palette defining one or more circular pockets for holding the polishing material. Different polishing material can be positioned in the different pockets. A circular guide can be utilized in the circular pocket wherein the guide includes a circular opening with a center offset from a center of the circular guide.

Abstract: A method of lathing a lens, especially a contact lens, involves attaching the cylindrical blank of lens material to a first block of machineable plastic material, lathe cutting a desired first lens surface in the cylindrical blank, attaching the machined first lens surface of the blank to a second block, lathe cutting to remove the block of machineable plastic material, and lathe cutting a desired second lens surface in the blank. Both the first and second blocks may be adhered to the lens blank with an adhesive curable by ultraviolet radiation, and a two-piece block, composed of a head section and a body section, is disclosed.

Abstract: A method for processing a first optical face and a second optical face of a lens, where a lens blank is positioned and gripped by a gripping device relying on reference datum indications rendering it possible to obtain topographic orientation for processing both faces of the lens, and wherein not more then one reference datum indication extends on a face of the lens.

Abstract: A method for producing lenses includes assembling a plurality of glass rods having a desired length into a single unit and cutting the single unit into multiple slices, each slice having a plurality of individual lenses. The method further includes finishing the slices to a desired thickness and surface finish and extracting the individual lenses from the slices.

Abstract: The present invention provides an abrasive article formed of a binder, abrasive particles associated with the binder, and a lubricating particulate additive comprising polytetrafluoroethylene associated with the binder. The abrasive article of the invention is useful in the polishing of fiber optic connectors because the lubricating particulate additive allows the polishing rate of the softer glass fiber material to be slower than the polishing rate of the harder ceramic ferrule material. Methods of manufacture and methods of polishing a fiber optic connector is also provided.

Abstract: The invention relates to different methods for distortion-free production of data carriers having at least in partial areas a transparent plastic layer with a surface structure in the form of a lens structure. The surface structure can be produced by cutting method or embossed by applying heat and pressure. Alternatively the surface structure can be produced as a separate element which is connected after its production with the data carrier.

Abstract: An apparatus for polishing or lapping an aspherical surface of a work piece comprises a tool rotatable about an axis, the working surface area of the tool being smaller than the work piece, and an arrangement by means of which the tool and the work piece are adjustable relative to each other in all three directions in space, by means of which the orientation of the tool relative to the work piece is adjustable about at least two axes, and by means of which the work piece is rotatable about an axis.

Abstract: A ferrule end-surface polishing apparatus for polishing an end-surface of a ferrule for an optical fiber is provided. The apparatus includes a ferrule holder having a holder block capable of sandwiching a cylindrical portion of a ferrule, and a guide block for guiding the ferrule to the holder block; a polisher having a rotatable polishing board for polishing an axial end-surface of the ferrule held by the ferrule holder; and a ferrule transfer device for transferring and loading the ferrule into the ferrule holder, and for removing the ferrule therefrom after polishing. With this configuration, the ferrule polishing operation is automated.

Abstract: Jet-induced finishing of a substrate surface includes means for covering the surface with an abrasive liquid slurry and means for impinging a jet of fluid, either a gas or a liquid, against the slurry to create a high-shear work zone on the substrate surface whereby portions of the substrate are lifted and removed to alter the shape of the surface towards a predetermined shape and/or smoothness. The surface may be covered as by cascading a flowing layer of slurry over it or by impinging slurry onto the work zone or by immersing the substrate in a pool of the slurry. A nozzle for dispensing the jet fluid is precisely located at a predetermined distance and angle from the surface to be finished. A coarse removal function is provided by disposing the nozzle tip at a first distance from the substrate surface, and a fine removal function is provided by disposing the nozzle closer to the substrate surface.

Abstract: A lens grinding processing apparatus of the present invention has lens rotating shafts 23 and 24 for holding an eyeglass lens ML, a lens retaining members (300, 320) fixed respectively to opposed end sections of the lens rotating shafts 23 and 24 capable of slanting adjustably, a drilling device (drilling processing device 200) for drilling a hole for a point frame into the slanted eyeglass lens ML, and a grinding stone (grinding stone 35, chamfering stones 224, 225) for grinding and processing a circumferential part of the eyeglass lens ML.

Abstract: A precision optical element is described, such as is used in thermal imaging systems in the infra-red, manufactured by means of single point machining, with both of its surfaces having an aspheric form, with or without the addition of a diffractive optics pattern. The element is produced while held in a novel vacuum chuck, whose support surface has a width in the radial direction significantly less than the size of the element, and which is aspherically machined to match the aspheric first surface of the element. A method whereby such an element can be produced by means of single point machining, such as diamond turning or fly cutting, is also described. Also described are new optical system designs and applications using such double-sided aspheric elements, thereby providing significant improvement over currently available optical systems.

Abstract: The disclosed invention relates to a system and method for aligning reference marks defining the optical center or major reference point on a lens blank with a series of alignment marks, or “fiducials”. The fiducials comprise first and second alignment bars displayed on a display operably associated with a computer, and overlay the reference marks, also displayed on the display. The fiducials may be adjusted to accurately precisely align the lens blank.

Abstract: An eyeglass lens processing apparatus for processing a periphery of an eyeglass lens, comprises: a detecting unit, which detects an edge position of the lens based on inputted target lens shape data and layout data; a processing unit, which has at least one grinding tool and which processes the lens by relatively moving the lens with respect to the grinding tool, the at least one grinding tool being adapted to execute at least two types of processing including: a plane finish processing; a bevel finish processing; a plane polish processing; a bevel polish processing; a first groove processing; and a second groove processing; an input unit, which inputs data on ranges of the lens periphery and data on respective processing types to partially change the processing types to be executed on the lens periphery; a computing unit, which obtains processing data for the respective ranges, different in processing type, based on data on edge position and data on processing type corresponding respectively to the ranges; a

Abstract: A polisher for polishing a curved surface such as a concave surface of a spectacle lens has a structure in which a polishing pad 3 comprising water passing grooves 5 having a width W of 0.1 to 5 mm is adhered to a dome-shaped elastic base member 2. The polishing pad 3 is composed of a plurality of pads 31, and the water passing grooves 5 are formed at the gaps between the pads 31, whereby the width W of the water passing grooves 5 are made small. It is effective to make the pads 31 polygonal in shape. The polishing pad 3 covers the moving region 6 of the work 8 to be polished. The polishing pad 3 is adhered through a high-tack adhesive layer 4. A polishing method is adopted in which such a polisher 1 is used and the work 8 is polished by pressing the polishing pad 3 against the work 8, whereby the polishing pad 3 adhered to the elastic base member 2 can be prevented from being stripped by an end edge of the work 8, and generation of defective polish can be prevented.

Abstract: A method for polishing a ferrule structure having first and second end faces is disclosed herein. The method includes positioning the ferrule structure within a housing such that the first end face is located outside the housing. The method also includes polishing the first end face while the ferrule structure is positioned within the housing and the first end face is located outside the housing. The method further includes reversing the ferrule structure within the housing such that the second end face is located outside the housing, and polishing the second end face while the ferrule structure is positioned within the housing and the second end face is located outside the housing.

Abstract: A method of polishing a surface such as a surface of a material layer on a substrate is provided. In one embodiment, a substrate having a material layer thereon is provided. The material layer has a surface with a plurality of features having a feature size less than about 1 micron. The surface is contacted with a polishing composition that comprises a compound capable of reacting with the material layer. Relative motion is provided between the polishing composition and the surface to be polished, and portions of the material layer are removed, thereby reducing the feature size of the features on the surface of the material layer. The surface is irradiated with sonic energy. The polishing composition may comprise ozone. In another aspect of the invention, a polishing composition comprising about 1 part per million (ppm) to about 50 ppm of ozone and a sufficient concentration of acid to solubilize the ozone is provided.

Abstract: A grinding water tank apparatus includes a tank for storing grinding water to be used for machining a peripheral edge of an eyeglass lens and recycles the grinding water stored in the tank by circulation. The apparatus further includes an air filter provided at a position in a space higher than the water surface of the grinding water in the tank, and a suction unit for drawing bubbles developing in the tank by way of the air filter.

Abstract: A mask for removably covering an IOL to protect a sharp peripheral edge of the IOL optic during polishing.

Abstract: A polishing pad for polishing semiconductors and other planar substrates in the presence of a slurry comprising abrasive particles and a dispersive agent is disclosed. The polishing pad includes a soluble component, preferably fibrous, within a polymer matrix component. The fibrous component includes fibers soluble in the slurry sufficiently to provide a void structure in the polishing surface of the pad. The void structure enhances the polishing rate and uniformity by increasing the mobility of the abrasive particles while reducing scratching of the polished surface. Additives that further enhance polishing and/or assist in the removal of residues generated during polishing, such as surfactants and removers, are optionally incorporated in the fibrous substance or topographically coated on the fibrous substance.

Abstract: In a semiconductor device having a front surface where circuits are formed and a back surface, a hemispherical solid immersion lens is formed at the back surface of the semiconductor device in a body with the semiconductor device.

Abstract: Generally a method and apparatus for determining a position of an object is provided. In one embodiment, an apparatus includes a locating plate, a window and a camera. The camera is positioned to view the target through the window disposed in the locating plate. The position of an object viewed by the camera through the window by be resolved relative to the position of the locating plate. In other embodiments, the apparatus may be disposed in a processing system such as a chemical mechanical polisher to align components such as robots, load cups and polishing heads.

Abstract: Embodiments of the invention provide methods and apparatuses to process optical subsystems. In one aspect, the optical subsystems are polished using an orbital polishing apparatus adapted to polish and clean an optical subsystem interconnect surface. The orbital polishing apparatus is adapted to incrementally advance a movable web of polishing material to provide polishing uniformity and consistent polishing performance device to device.

Abstract: A rod lens manufacturing method having satisfactory machining accuracy and enabling mass production. In the method, lens assembly sheets, each holding at least a row of rod lenses, are prepared. The lens assembly sheets are then arranged on holding surfaces defined on a jig. The holding surfaces are inclined relative to a reference surface of the jig by a predetermined angle. Each of the lens assembly sheet is clamped so that optical axes of the rod lenses are inclined relative to a direction perpendicular to the reference surface by that predetermined angle. The lens assembly sheets are then ground and polished.

Abstract: A method of grinding a glass or other workpiece is described comprising the steps of: contacting a grinding layer of a flexible abrasive article with the surface of a glass workpiece, the grinding layer comprising abrasive grit dispersed in a bonding matrix, the matrix attached to a flexible backing; and moving the grinding layer of the flexible abrasive article and the surface of the glass workpiece relative to one another at a velocity of at least about 16.5 meters per second to provide a final surface roughness Ra less than about 0.030 micrometer.

Abstract: A fiber optic ferrule polishing devise comprising a disk having an outer periphery and a center. Rings having a polishing surface coated with varying degrees of abrasive and attached to the disk such that the courseness of abrasive on the rings decreases from the outer periphery to the center. A ferrule holder having a ferrule holding recess adjacent to the polishing surface, a water injecting recess and an attachment arm pivotally attached to the ferrule holder such that the arm is positioned adjacent to the ferrule holding recess. A holding plate having a ferrule end face receiving recess having a smaller diameter than the ferrule holding recess and positioned adjacent to the ferrule holding recess and polishing surface. A mounting plate for mounting the ferrule holder a predetermined distance from the polishing surface. The arm biases a ferrule toward the polishing surface when a ferrule is received in the ferrule holding recess.

Abstract: A lens layout block device, comprising a seal feeding device (24) for feeding an elastic seal (3) to a seal sticking position (A5), wherein the elastic seal (3) is loaded in a tape loading part (73) in the form of a seal tape (67) covered by a mount (65) and a protective sheet (66) and wound in roll shape and fed by the driving of a motor (86), the protective sheet (66) being separated by a protective sheet separating mechanism (75), whereby a sensor (108) detects the leading edge of a positioning hole (69) in the mount (65) at the seal sticking position (A5) and stops feeding the seal tape (67) after feeding the seal tape (67) for a specified time from the time of the detection, the stop position is positioned as the reference sticking position of the elastic seal (3) and a lens holder (2) is pressed against the elastic seal (3) from the upper side for sticking, and the mount (65) is pulled down by the seal separating mechanism (110) so as to separate the mount (65) from the elastic seal (3).

Abstract: A lens machining apparatus is provided that can execute everything required in machining eyeglass lenses, from measurement to various kinds of machining, and still can ensure high-precision machining. A lens holding unit 12 which holds a lens 1 and causes the same to turn, a cutter 131 which cuts (edges) the circumferential surface of the lens in a prescribed cross-sectional shape, an end mill 141 which machines a groove in the circumferential surface of the lens whose circumferential surface has been cut (edged) and chamfers edges at the lens circumferential surface, and a lens measurement unit 15 which measures the shape and the position of the lens held by the lens holding unit are comprised.

Abstract: Methods and devices are disclosed for holding an optical element in an optical column with reduced stress (e.g., thermal stress) to the optical element. The devices and methods are especially useful for holding reflective optical elements in an optical column of an optical system used for extreme ultraviolet lithography. The devices allow the elements to be mounted and detached readily from the column. In an embodiment, the device includes multiple anchoring members that attach to respective locations on the optical element. The anchoring members are, in turn, mounted in a mounting frame by a releasable attachment mechanism. Each anchoring member has at least a compliant region configured to prevent transmission of stress to and from the optical element.

Abstract: This apparatus includes a unit for adhering an elastic seal to a lens holder, a unit for causing the lens holder, to which the elastic seal is adhered, to hold a lens, a pivotal arm, an arm driving unit for pivoting the pivotal arm, a clamp unit attached to the pivotal arm to be vertically movable to hold the lens holder, and a clamp driving unit for vertically moving the clamp unit. The pivotal arm is pivoted to sequentially adhere the elastic seal to the lens holder and hold the lens by the lens holder.

Abstract: A cup attaching apparatus for attaching a cup for eyeglass lens processing to a subject lens to be processed, includes: an imaging optical system, which obtains an image of the lens by illuminating the lens with rays of light shaped to be larger in diameter than the lens; a display; a display control unit, which displays, on the display, the obtained lens image and an alignment mark superimposed on the obtained lens image, the alignment mark having substantially the same contour as a small lens portion of a bifocal lens; a first input unit, which inputs an amount of offset of the alignment mark with respect to a cup attachment center; and a second input unit, which inputs layout data for layout of the lens with respect to a target lens shape, wherein the display control unit determines a display position of the alignment mark based on the inputted offset amount and layout data, and displays the alignment mark at the determined display position on the display.

Abstract: A polishing puck assembly is provided for use in polishing a fiber optic connector. A slidable weight rests on the fiber optic connector to urge the ferrule of the fiber optic connector to extend below a bottom surface of the puck assembly. The puck assembly can be manipulated relative to polishing material to polish the end of the fiber optic connector. The polishing material can be circular in shape and held by a palette defining one or more circular pockets for holding the polishing material. Different polishing material can be positioned in the different pockets. A circular guide can be utilized in the circular pocket wherein the guide includes a circular opening with a center offset from a center of the circular guide.