Abstract: Methods and systems for manufacturing a wavefront-guided scleral lens prosthetic device customized for an eye of a patient include obtaining a first scleral lens prosthetic device with a central optic zone configured to vault over the eye's cornea and a peripheral haptic zone configured to align with the eye's sclera, collecting measurements of any offset and/or rotation of the first scleral lens prosthetic device relative to the eye's pupil and of any aberrations, particularly higher-order aberrations, generating a wavefront-guided profile from the measurements, and fabricating a second scleral lens prosthetic device with the profile on a surface of a central optic zone configured to vault over the eye's cornea and a peripheral haptic zone customized to align with the eye's sclera.

Abstract: Method for determining a surface of a face of an optical lens to be mounted to a spectacle frame, the method comprising: a contour data providing step (S1), during which contour data representing a contour of the spectacle frame is provided, a target curvature data providing step (S2) during which target curvature data representing the target curvature of the surface to be determined over an evaluation zone of said surface is provided, an optical surface determining step (S3), during which a surface is determined so as to minimize: the difference between the target curvature and average curvature of the surface over the evaluation zone, and the difference between the contour of the spectacle frame and the periphery contour of the surface, the periphery contour of the surface corresponding to the contour of the surface to be determined of the optical lens after the optical lens has been edged to be mounted in the spectacle frame.

Abstract: An apparatus for inspecting lenses includes an inspection system including an open cuvette, a communicatively coupled CT measurement device, and a user interface communicatively coupled to the inspection system. According to one embodiment, the lens inspection system provides a single instrument for inspecting the quality of a lens, thereby minimizing the transference of the lens from one inspection component to another.

Abstract: An alignment tool provides for aligning the spindle of a machine tool to a work holding feature of the machine tool. The alignment tool may include one indicator or may include a first indicator and a second indicator in a spaced-apart relation. The faces of the indicators are rotatable. In use, a machinist may attach the indicators to the spindle of a machine tool, advance the spindle or work holding feature until the indicator tips contact the work holding feature. The machinist can rotate the faces so that the machinist can read the indicator faces without placing the machinist's head within the envelope of tool movement of the machine tool.

Abstract: A unique electro optical design will be disclosed, implemented for MTF measurements of multiple optical elements. The measurements are performed over a wide field of view by collimators moving in parallel in a synchronized manner while maintaining accuracy. The movement is angular over a wide angle and in two perpendicular directions—pitch and yaw. By design, each said collimator element will perform its angular movement while protecting towards the center of lens under test from remote. Thus, the collimators' center of rotation will be the central point of each lens' input aperture. By shifting a tray loaded with lenses, a different batch will be tested on each sequence. The apparatus is suitable for testing both camera and lenses simultaneously. The apparatus will preferably test lenses or cameras directly on the production floor.

Abstract: A holder (1) for pneumatically blocking an optical lens (300) on a surfacing machine, includes:—a gripping part (10) for fixing it to a corresponding member (200) of the surfacing machine, and—a part (100) for blocking the optical lens, which includes a body (110) from which there protrude abutments which are designed to afford the optical lens a rigid seat, and a seal (170) against which the optical lens is able to be brought to bear in order to delimit with the body a vacuum chamber (180). The abutments include first rods (160) which are mounted so as to be movable in translation with respect to the body in order to bear by way of their free ends (161) against the optical lens, and provision is made of return elements (179, 190) for returning the first rods against the optical lens.

Abstract: An apparatus for inspecting lenses includes an inspection system including an open cuvette, a communicatively coupled CT measurement device, and a user interface communicatively coupled to the inspection system. According to one embodiment, the lens inspection system provides a single instrument for inspecting the quality of a lens, thereby minimizing the transference of the lens from one inspection component to another.

Abstract: An ophthalmic-lens holder (200) includes a plate (210) and three pads (250) which are mounted on the plate and rise up above the latter to offer free ends (271) via which they can bear the ophthalmic lens. At least one of the three pads is movably mounted on the plate.

Abstract: A measuring device for in-process measurement of test pieces during a machining operation on a machine tool, in particular a grinding machine, has a base body, and a measuring head movable between a neutral position and a measuring position and which is connected to the base body via a rod assembly which is configured and set up in such a way that the measuring head in the measuring position follows orbital rotations of a test piece about a rotational axis. The measuring head has a measuring sensor which is deflectable along a linear axis for recording measured values during a measuring operation. A control apparatus is provided for controlling the measuring operation. The control apparatus is configured and set up in such a way that the measuring device may be calibrated in a calibration mode.

Abstract: A calibration template for calibrating a machining device that has blocking elements for blocking an ophthalmic lens, and machining elements for machining the ophthalmic lens, the template including a fastener portion suitable for being fastened to the blocking elements and a calibration portion arranged around the fastener portion. The calibration portion is made out of a material that is suitable for being machined by the machining elements, and presents firstly a plurality of shape patterns, and secondly a plurality of visual identifiers each visually associated with one of the shape patterns.

Abstract: A lens meter includes a measurement optical system having a light source, measurement target plate, and light receiving sensor. A lens table has an opening where a measurement optical axis of the measurement optical system passes. A frame support member includes a support plate that contacts a left rim and right rim of a spectacle frame. The support plate is moved toward the lens table by a guide mechanism. The frame support member further includes a cutout portion in the support plate that allow the lens, placed on the lens table, to measure a point near an edge of the lens located on the support plate side. A pad contacts and prevents the rim from entering the cutout portion. The pad is provided in at least a part of the cutout portion. A pad moving mechanism moves the pad from the contact surface.

Abstract: The cylindrical ruler is an elongated, hollow, cylindrical tube of known diameter having an axial slit extending the length of the tube. Indicia defining a circumferential scale are disposed around one end of the tube for measuring the length of an arc. Indicia defining a ruled scale extend lengthwise down the tube adjacent the slit for measuring length and width. Since the tube has a known diameter, it may be used to measure the inner or outer diameter of a pipe, the outer diameter or radius of curvature of a cylindrical lens, etc. The tube may also be used as a drawing tool to draw arcs, circles, or rectilinear lines on a cylindrical object. Preferably, the cylindrical ruler is furnished as a plurality of cylindrical tubes of progressively increasing diameter that can telescope within each other for storage and transport in a protective case.

Abstract: An eyeglass frame shape measurement device includes: an eyeglass frame holding unit including a first slider and a second slider for holding an eyeglass frame; a rim measuring unit including a tracing stylus for a rim of the eyeglass frame, and detecting the movement position of the tracing stylus to measure a shape of the rim; a template holder configured to attach a template and a measurement object of a demo lens; a template measuring unit including a tracing stylus shaft configured to contact an edge of the measurement object attached to the template holder, for measuring radius vector information of the measurement object; and a housing portion provided to house the template holder and provided in one of the first slider and the second slider when measurement using the template measuring unit is not being performed.

Abstract: The present invention relates to an ophthalmic holding mechanism for holding an eyeglass frame. The holding mechanism includes a base, a clamping mechanism configured for releaseably securing a lens mount of an eyeglass frame, and an actuator operatively associated with the clamping mechanism for causing linear and rotational movement thereof. The clamping mechanism is moveably coupled to the base for linear and rotational movement about an axis of rotation relative to the base, wherein the clamping mechanism is rotatable about first and second spaced pivot points. The present invention also relates to a method of tracing a lens mount of an eyeglass frame.

Abstract: An apparatus for measuring a shape of an eyeglass frame, includes: a tracing stylus to detect a position of the rim in a moving radius direction and in a vertical, a tracing stylus shaft for the tracing stylus, a holding unit movably holding the tracing stylus shaft and including a pressure applying element for pressing a tip end of the tracing stylus to the rim, a moving unit for moving the holding unit, a rotating unit for rotating the holding unit around an axis along a vertical direction; a moving radius position detection unit configured to detect a position of the tracing stylus; and a controller configured to obtain a rotating angle of the rotating unit and a position of the holding unit in the moving radius direction at a next measurement position, and control the rotating unit and the moving unit.

Abstract: A vision shift amount measuring method includes: forming a reference mark indicating a distance eye point on a surface of a spectacle lens attached to a spectacle frame practically worn by a wearer, and forming a plurality of opaque lines in an area expected to contain a shifted vision on the surface of the spectacle lens with a predetermined space between the adjoining lines; and allowing the wearer wearing the spectacle frame to select the line closest to a position through which the vision passes from the plural formed lines.

Abstract: The present invention relates to an ophthalmic holding mechanism for holding an eyeglass frame. The holding mechanism includes a base, a clamping mechanism configured for releaseably securing a lens mount of an eyeglass frame, and an actuator operatively associated with the clamping mechanism for causing linear and rotational movement thereof. The clamping mechanism is moveably coupled to the base for linear and rotational movement about an axis of rotation relative to the base, wherein the clamping mechanism is rotatable about first and second spaced pivot points. The present invention also relates to a method of tracing a lens mount of an eyeglass frame.

Abstract: This invention discloses a spectacle edging assist device including a flexible layout chart, chart holding portion, and spectacle frame holding portion. An index used to determine the suitability of a lens while the layout chart is superposed on a spectacle frame is drawn on the flexible layout chart. The chart holding portion holds the layout chart upon bending the layout chart to have a curvature corresponding to the frame curve of the spectacle frame, and also holds the layout chart to be movable in the horizontal direction of the spectacle frame. The spectacle frame holding portion holds the spectacle frame so that its front portion overlaps the layout chart. The chart holding portion brings at least two end pieces of the spectacle frame into contact with the layout chart. A spectacle lens suitability determining method is also disclosed.

Abstract: A relationship between a rim shape and a position of a mounting hole is obtained based on a detection signal from the second position detector (40) by controlling a measuring element shifter (6) to move the leading end of a measuring element for a lens (36) to have contact with an refracting face of the lens (Lm) held in the lens holder.

Abstract: A handheld digital lens clock device is disclosed for measuring front and back dioptric power of eyeglass lenses based on curvature and refractive index. The device includes a reference probe, a measuring probe for measuring a sagittal depth of a lens relative to the reference probe and a digital display to show the measurement information. The device can further include a refractive index input button that allows the device to measure the optical power of lens composed of materials having different refractive indices. The device can further include a calibration button that is used to set a reference or zero reading by placing the reference probes and measuring probe on a flat surface. A tube level can also be included on the device to assist orienting the device when taking measurements.

Abstract: A method for determining a contour data set of a spectacle frame rim comprising the steps of: a) providing a plurality (N) of three dimensional measured points along a contour of a spectacle frame rim; b) calculating a plurality of best torus that fits P points chosen among the N measured points and where P is equal or more than 4; c) selecting the (T) points among the N measured points that deviate from one of the best torus more than a threshold value; and d) forming the contour data set with (N-T) three dimensional measured points where the T selected points of step c) are excluded from the list of three dimensional measured points of step a).

Abstract: The present invention relates to an ophthalmic holding mechanism for holding an eyeglass frame. The holding mechanism includes a base, a clamping mechanism configured for releaseably securing a lens mount of an eyeglass frame, and an actuator operatively associated with the clamping mechanism for causing linear and rotational movement thereof. The clamping mechanism is moveably coupled to the base for linear and rotational movement about an axis of rotation relative to the base, wherein the clamping mechanism is rotatable about first and second spaced pivot points. The present invention also relates to a method of tracing a lens mount of an eyeglass frame.

Abstract: A handheld digital lens clock device is disclosed for measuring front and back dioptric power of eyeglass lenses based on curvature and refractive index. The device includes a reference probe, a measuring probe for measuring a sagittal depth of a lens relative to the reference probe and a digital display to show the measurement information. The device can further include a refractive index input button that allows the device to measure the optical power of lens composed of materials having different refractive indices. The device can further include a calibration button that is used to set a reference or zero reading by placing the reference probes and measuring probe on a flat surface. A tube level can also be included on the device to assist orienting the device when taking measurements.

Abstract: A bevel perimeter measurement apparatus (1) includes a retractable slider (3), a stylus holder (5) disposed to be vertically movable on the slider (3), a stylus (13) which has a bevel measurement groove (30) formed on its outer periphery and is provided on the stylus holder (5), a pressing force application device (14) which moves the slider (3) forward at the time of bevel measurement to press the stylus (13) against the edge surface (50c) of a spectacle lens (50), and a retracting device (19) which holds the stylus holder (5) at the retraction position during non-measurement. When the stylus holder (5) is released from the retracting device (19) at the time of measurement, it ascends using the spring force of biasing springs (27) to engage the bevel measurement groove (30) in the stylus (13) with a bevel (52) of the spectacle lens (50).

Abstract: A spectacle lens frame shape measuring apparatus includes a holding device including upper pins and lower pins respectively holding upper rims and lower rims of frames for a spectacle lens, the upper pins holding the frames at different positions in a right-left direction from the positions at which the lower pins hold the frames and being placed at a same height as the lower pins in a vertical direction, a probe brought into contact with lens fitting grooves of the frames held by the holding device, a swinging mechanism swinging the holding device around a predetermined virtual axis, and a calculation controller calculating an axial shift amount or angle of the frames held by the holding device on the basis of a carved angle of the frames and an inclination angle of any one of the upper and lower rims, and correcting a shape of the frames obtained by the probe in accordance with the calculated axial shift amount or angle.

Abstract: An instrument to measure vector height comprises a base 8, linear guide rail 10, support and rotating plate 7, slide block 11 on guide rail with a measuring device vertically sliding in the sliding slot of linear guide rail 10 and riser 8 with a top fixed with bumper plate 12. There is a measuring seat 5 for polishing abrasive tools and a rotating clamp handle 6 on a support and rotating plate 7. By changing the corrective blocks on the measuring seat 5 for polishing abrasive tools, the instrument may measure the convexity of abrasive tools, but also the concave areas. Embodiments of the instrument have a wide range of 50 mm, high precision of 0.001 mm and accuracy of 0.006 mm, in a convenient to use form factor.

Abstract: The present invention relates to an ophthalmic holding mechanism for holding an eyeglass frame. The holding mechanism includes a base, a clamping mechanism configured for releaseably securing a lens mount of an eyeglass frame, and an actuator operatively associated with the clamping mechanism for causing linear and rotational movement thereof. The clamping mechanism is moveably coupled to the base for linear and rotational movement about an axis of rotation relative to the base, wherein the clamping mechanism is rotatable about first and second spaced pivot points. The present invention also relates to a method of tracing a lens mount of an eyeglass frame.

Abstract: An arithmetic control circuit (52) is configured to bring the measuring element (38) for a lens into contact with at least two points (measurement points P1, P2) of one of two refracting surfaces of the lens Lm held in the lens holder by controlling the measuring element shifter (driving motor 6), obtain the coordinates of the two points according to the detection signal from the position detector (linear scales 24, 40), and obtain a curve value Cv of one refracting surface of the lens from the difference of the coordinates of the two points.

Abstract: An apparatus for measuring a shape of an eyeglass frame, includes: a tracing stylus moving unit that includes a tracing stylus detecting a position of a rim of the frame in a moving radius direction and in a vertical direction, a tracing stylus shaft for the tracing stylus, a holding unit configured to vertically-movably hold the tracing stylus shaft, a vertical direction moving unit for moving the holding unit in the vertical direction, and a moving radius direction moving unit for moving the holding unit in the moving radius direction so that the tracing stylus traces the rim; a vertical position detection unit for detecting a position of the tracing stylus in the vertical direction; and a controller for obtaining a next measurement position of the holding unit in the vertical direction based on the detecting result of the vertical position detection unit, and controls the vertical direction moving unit.

Abstract: An arithmetic control circuit (52) is configured to bring the measuring element (38) for a lens into contact with at least two points (measurement points P1, P2) of one of two refracting surfaces of the lens Lm held in the lens holder by controlling the measuring element shifter (driving motor 6), obtain the coordinates of the two points according to the detection signal from the position detector (linear scales 24, 40), and obtain a curve value Cv of one refracting surface of the lens from the difference of the coordinates of the two points.

Abstract: The present invention relates to an ophthalmic holding mechanism for holding an eyeglass frame. The holding mechanism includes a base, a clamping mechanism configured for releaseably securing a lens mount of an eyeglass frame, and an actuator operatively associated with the clamping mechanism for causing linear and rotational movement thereof. The clamping mechanism is moveably coupled to the base for linear and rotational movement about an axis of rotation relative to the base, wherein the clamping mechanism is rotatable about first and second spaced pivot points. The present invention also relates to a method of tracing a lens mount of an eyeglass frame.

Abstract: A bevel perimeter measurement apparatus (1) includes a retractable slider (3), a stylus holder (5) disposed to be vertically movable on the slider (3), a stylus (13) which has a bevel measurement groove (30) formed on its outer periphery and is provided on the stylus holder (5), a pressing force application device (14) which moves the slider (3) forward at the time of bevel measurement to press the stylus (13) against the edge surface (50c) of a spectacle lens (50), and a retracting device (19) which holds the stylus holder (5) at the retraction position during non-measurement. When the stylus holder (5) is released from the retracting device (19) at the time of measurement, it ascends using the spring force of biasing springs (27) to engage the bevel measurement groove (30) in the stylus (13) with a bevel (52) of the spectacle lens (50).

Abstract: The present invention relates to an ophthalmic holding mechanism for holding an eyeglass frame. The holding mechanism includes a base, a clamping mechanism configured for releasably securing a lens mount of an eyeglass frame, and an actuator operatively associated with the clamping mechanism for causing linear and rotational movement thereof. The clamping mechanism is moveably coupled to the base for linear and rotational movement about an axis of rotation relative to the base, wherein the clamping mechanism is rotatable about first and second spaced pivot points. The present invention also relates to a method of tracing a lens mount of an eyeglass frame.

Abstract: The apparatus (10) comprises a turret (50), rotatable about a first axis (B-B?), a slide (52) mounted on the turret (50) and a sensor (30) mounted for sliding in the slide (52) along a third axis (C-C?) substantially parallel to the first axis (B-B?). It comprises means (34) for displacement of the sensor for displacing a contact surface (42) of the sensor along the mount (14) during the sensing of the mount. The displacement means (34) comprise means (70) for driving the turret (50) in rotation about the first axis (B-B?). The apparatus comprises control means (82) for controlling means (72) for displacement of the turret in a plane perpendicular to the first axis (B-B?) and suitable for displacing the turret (50) in said plane when the turret is driven in rotation about the first axis (B-B?) during the sensing of the mount.

Abstract: A lens shape measuring method includes: bringing a feeler into contact with an outer peripheral surface of a spectacle lens, the outer peripheral surface corresponding to a lens shape of spectacles, the feeler being rotatable about a rotation axis and movable forward and backward relative to the rotation axis in a radial direction, and, while keeping the contact state, moving the feeler along a contact surface of the feeler with the lens shape in a circumferential direction, to measure radii ?i (i=0, 1, 2, . . . n) of the lens shape over an entire circumference of thereof, the radii ?i representing change in distance from a geometric center of the lens shape to the feeler, a measurement region of the lens shape being divided into multiple sub-regions, and within each of the sub-regions, the rotation axis line being moved to a position to cause the feeler to measure the lens shape within the sub-region.

Abstract: A shape measuring apparatus for eyeglasses which measures a contour shape of an eyeglass element includes: a holder which holds the eyeglass element; a holder swing mechanism which swings the holder around a virtual rotational axis which is set outside of the shape measuring apparatus for eyeglasses; a measuring element which traces a surface of the eyeglass element; a driver which drives the measuring element; a position detector which detects a position of the measuring element; and a controlling-calculating section which controls the driver and obtains and processes position information of the measuring element by the position detector, wherein, in a state of holding the eyeglass element by the holder, the controlling-calculating section controls the driver to slide the measuring element on the surface of the eyeglass element, so that the measuring element traces a three-dimensional shape of the eyeglass element and the three-dimensional shape of eyeglass element is obtained based on information of a drivi

Abstract: A lens shape measuring method includes: bringing a feeler into contact with an outer peripheral surface of a spectacle lens, the outer peripheral surface corresponding to a lens shape of spectacles, the feeler being rotatable about a rotation axis and movable forward and backward relative to the rotation axis in a radial direction, and, while keeping the contact state, moving the feeler along a contact surface of the feeler with the lens shape in a circumferential direction, to measure radii ?i (i=0,1,2, . . . n) of the lens shape over an entire circumference of thereof, the radii ?i representing change in distance from a geometric center of the lens shape to the feeler, a measurement region of the lens shape being divided into multiple sub-regions, and within each of the sub-regions, the rotation axis line being moved to a position to cause the feeler to measure the lens shape within the sub-region.

Abstract: The invention relates to a method of calibrating an ophthalmic-lens-piercing machine, a device used to implement one such method and a ophthalmic-lens-machining apparatus comprising one such device. The inventive method applies to a machine including a piercing tool, a lens support which is associated with a first reference mark (O1, X1, Y1), and programmable tool-control means which are associated with a second reference mark expressing set co-ordinates which define a target piercing point (M). A template is placed on the support, and the template includes pre-applied markings defining a third reference mark (O3, X3, Y3), such that the third reference mark in essentially in line with the first reference mark. The template is pierced at a pre-determined point corresponding to a target point, and an image of the template this point position, and a correction is applied to the set co-ordinates that can compensate for the misalignment.

Abstract: A method of reading the outline of the bezel of a rim of an eyeglass frame, includes contacting the bottom of the bezel and a feeler finger (9) belonging to a feeler (8) and pointing along a feeler axis (C) or with a feeler blade belonging to a feeler and extending in a feeler plane, and moving the feeler along the bezel In order to feel the bottom of the bezel by turning about an axis of rotation. The invention, the feeler blade or finger, at least when located in a temple zone of the rim of the frame, points obliquely towards the rim of the frame and towards its rear side that is to be placed facing the eyes of a wearer, such that its feeler axis or its feeler plane forms a non-zero feeler angle (A1) with a plane orthogonal to the axis of rotation of the feeler.

Abstract: An apparatus for measuring a thickness of a lens includes a plurality of first touch heads, a base, a plurality of second touch heads and a driving mechanism. The first touch heads each has a first curved contact surface for coming into contact with a first surface of the lens. The first curved contact surfaces have different curvatures for being selectively mated with the first surface of the lens. The base is configured for selectively mounting one of the first touch heads thereon. The second touch heads each has a second curved contact surface for coming into contact with a second surface of the lens. The second curved contact surfaces have different curvatures for being selectively mated with the second surface of the lens. The driving mechanism is configured for driving the mounted second touch head to move relative to the mounted first touch head.

Abstract: An eyeglass frame measurement apparatus includes: a measurement unit which includes a tracing stylus to be inserted into a groove of a rim of an eyeglass frame, a moving mechanism for moving the tracing stylus along the groove of the rim, and a detector for detecting movement of the tracing stylus, and obtains three-dimensional shape of the rim based on a detected result by the detector; and a holding unit which includes upper and lower sliders for positioning the frame, left and right clamp pins for clamping the rim and left and right contact portion to be contacted with the rim which is clamped by the clamp pins, and holds the frame fixedly. The left and right clamp pins and the contact portions protrude from each of the upper and lower sliders. Each of the contact portions is formed at the periphery of each of the clamp pins.

Abstract: A shape measuring apparatus for eyeglasses which measures a contour shape or an eyeglass element includes: a holder which holds the eyeglass element; a holder swing mechanism which swings the bolder around a virtual rotational axis which is set outside of the shape measuring apparatus for eyeglasses; a measuring element which traces a surface of the eyeglass element; a driver which drives the measuring element; a position detector which detects a position of the measuring element; and a controlling-calculating section which controls the driver and obtains and processes position information of the measuring element by the position detector, wherein, in a state of holding the eyeglass element by the holder, the controlling-calculating section controls the driver to slide the measuring element on the surface of the eyeglass element, so that the measuring element traces a three-dimensional shape of the eyeglass element and the three-dimensional shape of eyeglass element is obtained based on information of a drivi

Abstract: Contour reading device, in particular for eyeglass frame rims, including a carrier axis (A) projecting transversely to the surface of a turntable (6), a carrier arm (18) which is mounted at one end to turn about the carrier axis (A) and at the other end of which a feeler (8) is mounted, whereby the feeler (8) is mobile relative to the turntable (6) along a circular arc path centered on the carrier axis (A).

Abstract: A spherometer for measuring at least one physical parameter of the workpiece includes at least on fluid-actuated linearly extensible probe member having an output indicative of an amount of linear travel and a chamber housing the linearly extensible probe member. The chamber has an aperture for supporting a workpiece and a vacuum line is coupled to the chamber for creating a vacuum. The probe member is activated as a result of the vacuum in the chamber, causing it to extend linearly toward the workpiece until touching it. The linear extension of the probe may be used as a measurement of distance. The distance measured to a workpiece may be compared to a standard to determine a physical parameter of the workpiece.

Abstract: A hole data input device for inputting hole data including a position of a hole with respect to a target lens shape for forming the hole on an eyeglass lens to attach a rimless frame to the lens, includes: a storage that stores plural types of hole patterns; a selector that selects a desired hole pattern from the stored hole patterns; and a setting unit that automatically sets at least one of positions, diameters, depths, and angles of plural holes based on the selected hole pattern.

Abstract: A contour reading method for an item such as an eyewire for spectacles, the method using an appliance including a support for holding the item, and a rotary platform which is rotatably mounted in relation to the support about a rotational axis and carries a reading sub-set provided with a sensor consisting of a finger and a rod, the finger having a distal end. The distal end is displaced along the contour and successive positions thereof are detected. The method is characterized in that the displacement step includes a measuring step wherein the effort exerted between the platform and the rod is measured parallel to the rod, and a control step wherein the distance between the finger and the platform is controlled according to the effort in such a way that the intensity of the effort remains lower than a pre-determined threshold.

Abstract: An apparatus for measuring a thickness of a lens includes a plurality of first touch heads, a base, a plurality of second touch heads and a driving mechanism. The first touch heads each has a first curved contact surface for coming into contact with a first surface of the lens. The first curved contact surfaces have different curvatures for being selectively mated with the first surface of the lens. The base is configured for selectively mounting one of the first touch heads thereon. The second touch heads each has a second curved contact surface for coming into contact with a second surface of the lens. The second curved contact surfaces have different curvatures for being selectively mated with the second surface of the lens. The driving mechanism is configured for driving the mounted second touch head to move relative to the mounted first touch head.

Abstract: A method of reading the outline of the bezel of a rim of an eyeglass frame, includes the steps of putting a feeler into contact against the bezel and of feeling the bezel by sliding or running the feeler along the bezel, the feeler being actuated by actuator elements along at least a first axis normal to the general plane of the rims of the frame. According to the invention, the overall force delivered by the actuator elements varies continuously or in step during reading as a function of the position of the feeler along the first axis.

Abstract: An eyeglass lens appliqué device for determining placement of at least one auxiliary lens within an eyeglass lens includes a polymer sheet that can be removably disposed on the eyeglass lens, and is clingable to the eyeglass lens. The polymer sheet includes a pupil mark, and scale markings to show a distance from the pupil mark to an approximate peripheral edge of the eyeglass lens when the appliqué is disposed on an eyeglass lens.

Abstract: Rotational motions between a displacement-measuring probe and an optical test surface define a spherical or near spherical datum surface against which measurements of the probe are taken. The probe has a measurement axis that is maintained substantially normal to the optical test surface during the course of measurement.