EP2025462B1 - Appareil de fixation de tasses - Google Patents

Appareil de fixation de tasses Download PDF

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Publication number
EP2025462B1
EP2025462B1 EP08021079A EP08021079A EP2025462B1 EP 2025462 B1 EP2025462 B1 EP 2025462B1 EP 08021079 A EP08021079 A EP 08021079A EP 08021079 A EP08021079 A EP 08021079A EP 2025462 B1 EP2025462 B1 EP 2025462B1
Authority
EP
European Patent Office
Prior art keywords
lens
cup
mode
central axis
pins
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP08021079A
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German (de)
English (en)
Other versions
EP2025462A2 (fr
EP2025462A3 (fr
Inventor
Yoshinori Matsuyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nidek Co Ltd
Original Assignee
Nidek Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nidek Co Ltd filed Critical Nidek Co Ltd
Publication of EP2025462A2 publication Critical patent/EP2025462A2/fr
Publication of EP2025462A3 publication Critical patent/EP2025462A3/fr
Application granted granted Critical
Publication of EP2025462B1 publication Critical patent/EP2025462B1/fr
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Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • B24B13/005—Blocking means, chucks or the like; Alignment devices
    • B24B13/0055—Positioning of lenses; Marking of lenses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • B24B13/005—Blocking means, chucks or the like; Alignment devices

Definitions

  • the present invention relates to a cup attaching apparatus for attaching a cup, used for fixing an eyeglass lens to an eyeglass lens processing apparatus, to the lens.
  • cup attaching apparatus called a blocker for attaching a cup, used for fixing an eyeglass lens to an eyeglass lens processing apparatus, to the lens.
  • This cup attaching apparatus comprises a blocking arm provided with a cup holder in the vicinity of a distal end of the arm, the holder being used to hold the cup, and a lens mount (a lens support) on which the lens is to be mounted.
  • the cup is mounted (fitted) in the holder, and the arm is moved downward, the cup is attached to a front refractive surface of the lens.
  • the orientation of the cup holder is constant. This may cause an operator to have difficulties in viewing and mounting the cup depending on his/her posture, dominant hand, or other reasons.
  • the present invention has been made in view of the above circumstances and has an object to provide a cup attaching apparatus adapted to make it easy to mount a cup to a cup holder.
  • a cup attaching apparatus for attaching a cup to an eyeglass lens, according to claim 1.
  • Fig. 1 is a schematic perspective view of a cup attaching apparatus 1 of the present embodiment.
  • Figs. 2A and 2B are schematic configuration views of the attaching apparatus 1;
  • Fig. 2A is a front view and
  • Fig. 2B is a side view.
  • an eyeglass frame measuring device 5 is placed (built) and a switch panel (an input part) 4 for the measuring device 5 is placed.
  • a display (a display and input part) 3 of a touch screen type is placed in an upper front portion of the attaching apparatus 1, forming a canopy part 1b.
  • the display 3 is movable to change the orientation of a screen according to the posture of an operator or the like (see Fig. 2B ).
  • a lens mount (a lens support) 100 having three support pins 120 is placed.
  • a lens clamp 200 having three presser pins 220 is placed.
  • the lens clamp 200 is movable up and down by a moving unit 250.
  • a blocking unit (a cup attaching unit) 300 for attaching a cup CU to a front refractive surface of an eyeglass lens LE is placed.
  • the blocking unit 300 includes a blocking arm 310 including a cup holder 320 disposed at the vicinity of a distal end thereof, in which the cup CU is to be mounted (fitted).
  • a switch 2a for activating the moving unit 250 and a switch 2b for activating the blocking unit 300 are arranged on the front of the base part 1a.
  • the base part 1a internally contains an illumination optical system 10 for illuminating the lens LE with diffused illumination light.
  • the optical system 10 has an optical axis L1 that passes almost the center of the lens mount 100.
  • the illumination light from the illumination optical system 10 is reflected by a concave mirror 21 placed inside the canopy part 1b.
  • a light receiving optical system 20 for receiving the illumination light reflected by the mirror 21 is placed in a root portion of the base part 1a so that an optical axis L2 of the optical system 20 forms a predetermined angle with respect to the optical axis L1.
  • the configuration of the blocking unit 300 will be explained referring to Figs. 2 through 6 .
  • the arm 310 which rotatably holds the holder 320 is rotatably held by an arm holding base 312.
  • the holding base 312 is held by a moving unit 302 in such a manner as to be movable backward and forward (in a Y-axis direction).
  • the moving unit 302 is held by a moving unit 304 in such a manner as to be movable upward and downward (in a Z-axis direction).
  • the moving unit 304 is held by a moving unit 306 in such a manner as to be movable rightward and leftward (in an X-axis direction).
  • Each of the moving units 302, 304, and 306 is constituted of a well known moving mechanism including a motor, a sliding mechanism, etc.
  • Fig. 3 is a sectional view showing a schematic configuration of a rotating mechanism of the holder 320 and a rotating mechanism of the arm 310.
  • the holder 320 is placed near the distal end of the arm 310 in such a manner as to be rotatable about a central axis S1.
  • the arm 310 internally contains a motor 314 whose rotating shaft is coupled to a rear end of a shaft 318 supported by a bearing 316 in such a manner as to be rotatable about a central axis S2.
  • a bevel gear 319 is attached to a front end of the shaft 318 and in mesh with a bevel gear 322 attached to a rear end of the holder 320.
  • Such mechanism causes the holder 320 to rotate about the central axis S1 relative to the arm 310 in conjunction with rotation of the motor 314.
  • a base portion CUa of the cup CU is formed with a linear recess CUb and a small circular recess CUc.
  • a hole 320a of the holder 320 in which the base portion CUa is to be fitted is formed with a linear protrusion 320b engageable in the recess CUb and a small circular protrusion 320c engageable in the recess CUc. This makes it possible to control the orientation of the cup CU.
  • the arm 310 is held by the holding base 312 through a bearing 324 in such a manner as to be rotatable about the central axis S2.
  • the holding base 312 internally contains a motor 330 whose rotating shaft is attached with a spur gear 332 meshing with a spur gear 334 attached to a rear end of the arm 310.
  • Such mechanism causes the arm 310 to rotate about the central axis S2 relative to the holding base 312 in conjunction with rotation of the motor 330.
  • the orientation of the holder 320 can be changed to any one of a downward orientation (see Figs. 3 and 4A ), a sideways orientation (see Fig. 4B ), an upward orientation (see Fig. 4C ), and others.
  • Figs. 5A and 5B are sectional views showing a schematic configuration of a modified form of the rotating mechanism for the holder 320 and the rotating mechanism for the arm 310; Fig. 5A is a sectional side view and Fig. 5B is a sectional view (a sectional front view) taken along a line A-A in Fig. 5A .
  • the arm 310 includes a first arm 350a and a second arm 350b. The first arm 350a is held by the holding base 312.
  • the second arm 350b is placed near a distal end of the first arm 350a in such a manner as to be rotatable about a central axis S3 perpendicular to the central axis S2.
  • the first arm 350a contains a motor 352 whose rotating shaft is coupled to a rear end of a shaft 354 supported by a bearing 353 in such a manner as to be rotatable about the central axis S2.
  • a bevel gear 356 is attached to a front end of the shaft 354 and in mesh with a bevel gear 362 attached to a shaft 358 that is fixed to an outer surface of the second arm 350b and is supported by a bearing 360 in such a manner as to be rotatable about the central axis S3.
  • Such mechanism causes the second arm 350b to rotate about the central axis S3 relative to the first arm 350a in conjunction with rotation of the motor 352. Accordingly, the orientation of the holder 320 can be changed to any one of the downward orientation (see Figs. 5A and 5A ), a frontward orientation (see Fig. 6A ), the upward orientation (see Fig. 6B ), and others.
  • the holder 320 is held near a distal end of the second arm 350b in such a manner as to be rotatable about a central axis S4 perpendicular to the central axis S3.
  • the second arm 350b contains a motor 364 whose rotating shaft is coupled to a rear end of a shaft 366 supported by a bearing 368 in such a manner as to be rotatable about the central axis S4.
  • a front end of the shaft 366 is coupled to a rear end of the holder 320.
  • Such mechanism causes the holder 320 to rotate about the central axis S4 relative to the second arm 350b in conjunction with rotation of the motor 364.
  • the arm rotating mechanism in Fig. 3 and the arm rotating mechanism in Fig. 5 may be combined.
  • the first arm 350a may be adapted to be rotatable about the central axis S2 relative to the holding base 312.
  • Fig. 7 is a schematic perspective view of the lens mount 100.
  • Fig. 8 is a top view of the lens mount 100.
  • Fig. 9 is a sectional view (a sectional side view) taken along a line B-B in Fig. 8 .
  • a ring member 104 is placed on the top of a cylindrical mount base 102.
  • a diffusing plate 12 which can also be used as a lens table, is fitted.
  • a light source 11 of the illumination optical system 10 is placed on the center of a bottom plate 106 placed under the mount base 102.
  • three ball splines 112 each holding a spline shaft 110 in a manner to permit vertical movement of the spline shaft 110 are arranged.
  • Three ball splines 112 are arranged at an equal distance from and circumferentially spaced at equally intervals about the central axis L1 (an axis coinciding with the optical axis L1 of the illumination optical system 10).
  • three spline shafts 110 are arranged at an equal distance from and circumferentially spaced at equally intervals about the central axis L1.
  • Each ball spline 112 is held in the mount base 102 in such a manner as to be rotatable about the central axis of the spline shaft 110.
  • An arm 114 is attached to an upper end of each spline shaft 110 and provided at its distal end with the support pin 120.
  • three support pins 120 are arranged at an equal distance from and circumferentially spaced at equally intervals about the central axis L1.
  • Fig. 10 is a partly sectional view taken along a line C-C in Fig. 9 .
  • Each spline shaft 110 is formed with two semicircular grooves 110a extending along the central axis of the spline shaft 110.
  • Each ball spline 112 is also formed with two semicircular grooves 112a facing the grooves 110a. Between the groove 110a and the groove 112a, a ball 116 is interposed.
  • Such mechanism causes the spline shaft 110 to move in the direction of its central axis (in the Z-axis direction) relative to the ball spline 112, and further permits the spline shaft 110 together with the ball spline 112 to rotate relative to the mount base 102.
  • Fig. 11 is a sectional view taken along a line D-D in Fig. 9 .
  • a ring member 130 is held on the periphery of the mount base 102 in such a manner as to be rotatable about the central axis L1.
  • the ring member 130 is formed with long holes 132 each radially extending in correspondence with the position of each ball spline 112.
  • Each ball spline 112 is provided with a pin 134 standing in the position deviated from the central axis of the spline shaft 110 and engaging in the hole 132.
  • the pin 134 is arranged in the position deviated from the rotating center of the ball spline 112 (the central axis of the spline shaft 110) and, accordingly, when the ring member 130 is rotated about the central axis L1, the pin 134 is guided in the hole 132, thereby rotating the ball spline 112 about the central axis of the spline shaft 110, simultaneously rotating the spline shaft 110.
  • the intervals between the support pins 120 are changed.
  • the mount base 102 is provided with a motor 140 for rotating the ring member 130, through a plate 141.
  • a rotating shaft of the motor 140 is coupled to a feed screw 143 on which a nut 145 is threadably engaged.
  • the ring member 130 is provided with an engagement member 147 having a hole 149 in which the nut 145 is engaged.
  • Fig. 12 is a sectional view taken along a line E-E in Fig. 9 and also an explanatory view for showing an inclination mechanism for a supporting plane (level) He defined by the support pins 120.
  • An x-axis inclining ring member 144 is placed around the mount base 102 and a y-axis inclining ring member 148 is placed around the ring member 144.
  • the ring member 144 is connected to the mount base 102 with two connecting shafts 142 located on the x-axis in Fig. 12 so that the ring member 144 can be rotated about the x-axis.
  • the ring member 148 is connected to the ring member 144 with two connecting shafts 146 located on the y-axis in Fig.
  • the spline shafts 110 are moved up and down as the ring member 148 inclines two-dimensionally, so that the supporting plane He defined by the support pins 120 is inclined two-dimensionally about a point O1 on the central axis L1 passing that supporting plane He.
  • This inclination of the supporting plane He is restricted in a position where an undersurface of each of the arms 114 comes into contact with the edge of the ring member 104.
  • a permissible inclination range is set at about 6°, for example.
  • Columnar magnets 150a and 150b are embedded to face each other in an outer surface of the mount base 102 and an inner surface of the ring member 144 respectively.
  • columnar magnets 152a and 152b are embedded to face each other in an outer surface of the ring member 144 and an inner surface of the ring member 148 respectively.
  • the magnets 150a, 150b, 152a, and 152b constitute means for horizontally keeping the supporting plane He defined by the support pins 120 and serve as an urging member that applies an urging force to the support pins 120 to make the supporting plane He horizontal.
  • the magnetic force (the urging force) of the magnet 150a and others serving as the urging member is determined to be strong enough to reliably keep the supporting plane He in the horizontal position against a load on the support pins 120 when the lens LE is mounted on the support pins 120 and enough to allow the support pins 120 and the spline shafts 110 and others to move up and down under a load on the lens LE when the lens LE is pressed by the presser pins 220.
  • the means for returning and keeping the supporting plane He in the horizontal position may be a resilient member such as a plate spring serving as the urging member, instead of using the magnet 150a and others.
  • a locking ring member 160 is placed below the ring members 144 and 148 in such a manner as to be movable up and down.
  • An upper surface of the ring member 160 is able to come into contact with respective lower surfaces of the ring members 144 and 148.
  • the ring member 160 is fixed to an arm 162 which can be moved up and down by a moving unit 164.
  • the ring members 144 and 148 are inhibited from inclining and hence the supporting plane He defined by the support pins 120 is also inhibited from inclining (locked in the horizontal position).
  • the means for locking the supporting plane He in the horizontal position may be configured such that the ring member 148, the ring member 144, and the mount base 102 are locked to each other with pins or the like inserted through them.
  • the means for horizontally keeping the supporting plane He by the magnets 150a and others and the means for locking the supporting plane He in the horizontal position with the ring member 160 and others may be applied to a lens mount (a lens support) provided with support pins spaced at constant intervals.
  • Fig. 13 is a bottom view of the lens clamp 200 and Fig. 14 is an enlarged view of a part F in Fig. 13 .
  • a clamp base 210 is placed to be movable in the Y-axis direction by the moving unit 250.
  • Fixed on the clamp base 210 is a ring member 212 centered on the central axis L1.
  • the ring member 212 includes three arms 214 provided at respective distal ends with the presser pins 220, each arm 214 being rotatable about a fixed shaft 216.
  • a ring member 222 is placed to be rotatable about the central axis L1.
  • presser pins 220 are arranged at an equal distance from and circumferentially spaced at equally intervals about the central axis L1.
  • the presser pins 220 are positioned with respective end faces being flush with one another.
  • the presser pins 220 are provided in the lens clamp 200 so that a pressing plane defined by the presser pins 220 is in a substantially horizontal position.
  • Each arm 214 includes a base plate 214a extending over the ring member 222.
  • the ring member 222 is formed with long holes 224 each radially extending.
  • each base plate 214a is provided with a pin 218 engaging in the hole 224.
  • the clamp base 210 is provided with a motor 230 for rotating the ring member 222.
  • a rotating shaft of the motor 230 is coupled to a feed screw 232 on which a nut 234 is threadably engaged.
  • the ring member 222 is provided with an engagement member 238 having a hole 239 in which the nut 234 is engaged.
  • Fig. 15A is a front view of the moving unit 250 and Fig. 15B is a sectional view of the same viewed along a plane passing through each center of two guide shafts 254 and a feed screw 262.
  • the guide shafts 254 are mounted extending in the Y-axis direction.
  • a moving block 256 is supported on the guide shafts 254 in such a manner as to movable in the Y-axis direction.
  • the moving block 256 is fixed to the clamp base 210.
  • a motor 260 is placed with its rotating shaft being coupled to the feed screw 262.
  • a nut 264 is threadably engaged in a manner so as to be non-rotatable relative to the moving block 256 but movable in the Y-axis direction.
  • a coil spring 268 is interposed between a lower end of the nut 264 and a bottom portion 256a of the moving block 256.
  • a plate 256b placed at the top of the moving block 256 restricts upward travel of the nut 264.
  • the nut 264 moves the moving block 256 downward through the spring 268, and thus the clamp base 210 fixed to the moving block 256 is also moved down.
  • the nut 264 is provided with a light shielding plate 270.
  • the moving block 256 is provided with a sensor 272 for detecting the position of the light shielding plate 270.
  • the light shielding plate 270 is also moved downward and becomes detected by the sensor 272.
  • a detection signal of the sensor 272 it is detected that the presser pins 220 are placed in contact with the front refractive surface of the lens LE.
  • the motor 260 is driven from the time of detection of the sensor 272 to further move the nut 264 downward to apply an increased pressing force of the lens clamp 200 by the urging force of the spring 268 to the lens LE.
  • the clamp base 210 as well as the moving block 256 is moved upward.
  • Fig. 16 is a schematic configuration diagram of the illumination optical system 10 and the light receiving optical system 20 and a schematic block diagram of a control system of the attaching apparatus 1.
  • the illumination optical system 10 includes the light source 11 such as an LED which emits white light and the diffusing plate 12 having a diffusing plane larger than the lens LE.
  • Formed on a surface of the diffusing plate 12 is an index part 13 including measurement indexes arranged in a regular pattern centered on the central axis L1.
  • the measurement indexes of the index part 13 are for example a plurality of dot indexes spaced at equally intervals.
  • the light receiving optical system 20 includes a half mirror 22 located on the optical axis L2 in a reflecting direction of the concave mirror 21, a CCD camera (an imaging unit) 24 located on the optical axis L2 on a transmission side of the half mirror 22, and a CCD camera (an imaging unit) 28 located on the optical axis L2 on a reflection side of the half mirror 22.
  • An image of the lens LE is captured by the camera 28 and displayed on the display 3.
  • the cameras 24 and 28 are connected to an arithmetic control section 50.
  • this arithmetic control section 50 obtains an optical center and the direction of a cylinder axis of the lens LE, etc. based on images of the measurement indexes captured by the cameral 24, and further obtains a shape (a contour) of the lens LE, etc. based on an image of the lens LE captured by the camera 28.
  • the moving units 302, 304, and 306 of the blocking unit 300 and the motors 314 and 330 are also connected to the arithmetic control section 50. Also connected to the arithmetic control section 50 are the motor 140, the sensor 138, and the moving unit 164 of the lens mount 100, and also the motor 230, the sensor 240, the moving unit 250 (the motor 260), and the sensor 272 of the lens clamp 200.
  • the standby position of the arm 310 when the cup CU is to be mounted is the right portion of the apparatus 1 seen from the front, as shown in Figs. 1 and 2 .
  • a menu button 30a appearing on an initial screen 3a (see Fig. 16 ) of the display 3 is pressed (touched)
  • an orientation setting screen 3b for the orientation of the holder 320 appears.
  • buttons 31a to 31f on the setting screen 3b is pressed, the orientation of the holder 320 is specified (chosen).
  • the button 31a is pressed to specify "leftward orientation", seen from the front of the apparatus 1, the button 31b is pressed to specify “obliquely left-upward orientation”, the button 31c is pressed to specify “upward orientation”, the button 31d is pressed to specify “rightward orientation”, the button 31e is pressed to specify “obliquely right-upward orientation”, and the button 31f is pressed to specify "downward orientation”.
  • the arithmetic control section 50 activates the motor 330 to rotate the arm 310 to bring the holder 320 into the specified orientation.
  • the holder 320 is preferably placed in the upward orientation to facilitate the mounting of the cup CU to the holder 320.
  • buttons 31g The orientation of the holder 320 relative to the arm 310 can be adjusted with buttons 31g. Specifically, while an up button “ ⁇ " of the buttons 31g is being pressed, the arithmetic control section 50 activates the motor 314 to rotate the holder 320 to the left (counterclockwise). While a down button “ ⁇ ” of the buttons 31g is being pressed, the arithmetic control section 50 activates the motor 314 to rotate the holder 320 to the right (clockwise).
  • the height of the holder 320 (the arm 310) can also be adjusted with buttons 31h. Specifically, while an up button “ ⁇ ” or a down button “ ⁇ ” of the buttons 31h is being pressed, the arithmetic control section 50 activates the moving unit 304 to change the height of the arm 310.
  • the menu button 30a is pressed, closing the setting screen 3b, and set data on the orientation and height of the holder 320 are stored in a memory 51. Accordingly, the orientation and height of the holder 320 in the arm 310 placed in the standby position before and after the cup CU is attached thereto is adjusted to the specified orientation and height (see Figs. 1 and 2 ).
  • the arm rotating mechanism of Figs. 5A and 5B may be adapted to specify (choose) the orientation of the holder 320 from among "frontward orientation”, “obliquely front-upward orientation”, “upward orientation”, “obliquely front-downward orientation”, “downward orientation”, and the like.
  • the orientation of the holder 320 by the rotation of the holder 320 and the height of the holder 320 (the arm 310) may also be made adjustable.
  • Attaching of the cup CU to an unprocessed lens LE is explained below.
  • a mode selecting button 30b appearing on the initial screen 3a of the display 3 is pressed, an unprocessed lens blocking mode is established and an input screen for inputting target lens shape data and layout data appears on the display 3.
  • the target lens shape data on an eyeglass frame obtained by the measuring apparatus 5 is stored in the memory 51 at the press of a data transfer button not shown.
  • a target lens shape graphic based on the input target lens shape data is displayed on the display 3.
  • the layout data such as a FPD (frame pupillary distance) of the eyeglass frame, a PD (pupillary distance) of a person who wears the eyeglass, and the height of the optical center of the lens relative to the geometric center of the target lens shape, the type of the lens (a monofocal lens, a progressive multifocal lens, etc.), and the type of the eyeglass frame (with a rim, with no rim, etc.) are input. If the lens LE has cylinder power, data on an angle of the cylinder axis is further input.
  • the arithmetic control section 50 activates the motor 140 of the lens mount 100 to rotate the arms 114 from the standby position, thereby moving the support pins 120 to predetermined positions suitable for mounting the unprocessed lens LE.
  • the support pins 120 are moved to positions on a circle which is 40 mm in diameter and centered on the central axis L1 (see Fig. 18A ).
  • the positions (the intervals) of the support pins 120 can be changed on a setting screen, not shown in the figure, which will appear at the press of the menu button 30a.
  • the ring member 160 is put in a lower standby position, so that the supporting plane He defined by the support pins 120 is allowed to incline.
  • the arithmetic control section 50 also activates the motor 230 of the lens clamp 200 to rotate the arm 214 from the standby position, thereby moving the presser pins 220 to predetermined positions. For instance, the presser pins 220 are moved to positions on a circle which is 50 mm in diameter and centered on the central axis L1. The positions (the intervals) of the presser pins 220 can be changed on a setting screen, not shown in the figure, which will appear at the press of the menu button 30a.
  • the supporting plane He defined by the support pins 120 is kept horizontally by the horizontality keeping means such as the magnet 150a and others. Accordingly, the lens LE is stably mounted on the support pins 120.
  • the arithmetic control section 50 activates the moving unit 250 to move the moving block 256 downward, thereby bringing the presser pins 220 into contact with the front refractive surface of the lens LE.
  • the sensor 272 detects that the presser pins 220 come in contact with the lens LE
  • the arithmetic control section 50 stops the operation of the motor 260 based on that detection signal.
  • the lens LE has been pressed just slightly and hence is so movable on the support pins 120 as to adjust the position thereof.
  • the lens LE mounted on the support pins 120 is a lens having a rear refractive surface different in shape from the front refractive surface, such as a prism lens and an astigmatic lens (a toric lens), the front refractive surface portion of the lens LE to which the cup CU is to be attached can be held in the substantially horizontal position by the lens mount 100 adapted to allow the supporting plane He defined by the support pins 120 to incline.
  • the cup CU can be attached to the front refractive surface of the lens LE with accuracy.
  • the arithmetic control section 50 obtains the optical center position of the lens LE based on the measurement index images captured by the camera 24, and accordingly obtains data on the deviation of the optical center relative to the central axis L1 and data on the cylinder axis angle. Based on those data and the layout data with respect to the target lens shape, the attaching position and angle of the cup CU are determined. The arithmetic control section 50 successively activates the blocking unit 300.
  • the arithmetic control section 50 activates the motor 330 to rotate the arm 310, 180 degrees, to make an attachment surface of the cup CU face down. Based on the attaching position and angle of the cup CU, thereafter, the arithmetic control section 50 activates the motor 314 to rotate the holder 320 and also activates the moving units 302, 304, and 306 to move the arm 310 downward to attach the cup CU to the front refractive surface of the lens LE.
  • the arithmetic control section 50 activates the motor 260 of the moving unit 250 to rotate by only an amount corresponding to a fixed number of pulses, thereby moving the nut 264 downward to increase the pressing force to the lens LE by the urging force of the spring 268.
  • the arm 310 When the attachment of the cup CU to the lens LE is completed, the arm 310 is returned to the standby position again. At this time, the orientation of the holder 320 remains in (returns to) the specified one.
  • the lens clamp 200 After completion of the attachment of the cup CU, the lens clamp 200 is moved up to return to a standby position, thus removing the load on the lens LE. Accordingly, the supporting plane He defined by the support pins 120 is returned to and kept in the horizontal position again by the horizontality keeping means such as the magnet 150a and others.
  • the ring member 160 and the moving unit 164 serving as the locking means may be utilized as an alternative to the magnet 150a and others.
  • the inclination of the supporting plane He defined by the support pins 120 has only to be allowed when the lens LE is pressed by the lens clamp 200 (the presser pins 220).
  • the arithmetic control section 50 activates the moving unit 164 to move the ring member 160 upward, thereby locking the ring member 148 horizontally.
  • the arithmetic control section 50 causes the pressure pins 220 to move downward and the ring member 160 to move downward in interlocked relation to the downward movement of the pressure pins 220, releasing the locked state of the supporting plane He.
  • the arithmetic control section 50 causes the presser pins 220 to move upward and the ring member 160 to move upward in interlocked relation to the upward movement of the presser pins 220, thereby locking the ring member 148 horizontally.
  • the arithmetic control section 50 activates the motor 140 of the lens mount 100 to rotate the arm 114 from the standby position, moving the support pins 120 to predetermined positions suitable for mounting of the processed lens LE (at narrower intervals than those in the unprocessed lens blocking mode). For instance, the support pins 120 are moved to positions on a circle which is 20 mm in diameter and centered on the central axis L1 (see Fig. 18B ). The positions (the intervals) of the support pins 120 can be changed on a setting screen, not shown in the figure, which will appear at the press of the menu button 30a.
  • the cup CU is likely to collide with the presser pins 220 at the time of attachment of the cup CU.
  • the arithmetic control section 50 controls the activation of the moving unit 164 to move the ring member 160 upward, locking the horizontal position of the supporting plane He defined by the support pins 120.
  • the cup CU is attached to the lens LE. This attachment of the cup CU to the lens LE is effected in the same manner as the case of the unprocessed lens, and the explanation thereof is not repeated herein.
  • the demo lens LE mounted on the diffusing plate 12 is illuminated with the diffused illumination light of the illumination optical system 10.
  • the image of the lens LE is captured by the camera 28 and displayed on the display 3.
  • a Measure button 33a on the measuring screen 3c the measurement of the outer shape and the hole positions based on the obtained image of the lens LE is started. Since a distance and image-magnifying power of an imaging optical system including the camera 28 and others with respect to the diffusing plate 12 are well known in design, the outer shape of the lens LE can be detected by performing image-processing on contrast of the image of the lens LE captured by the camera 28.
  • the arithmetic control section 50 obtains data on the outer shape and data on the hole position of the lens LE by processing the image of the lens LE.
  • the arithmetic control section 50 causes an outline FT of the lens LE to appear in red in a superimposed manner on the image of the lens LE displayed on the measuring screen 3c.
  • a geometric center GO of the lens LE is determined based on the outer shape data and a coordinate of the center point of each hole HO relative to the geometric center GO is obtained.
  • the front refractive surface of the lens LE is applied with three dot marks in advance by a lensmeter or the like so that the dot marks represent a horizontal direction of the lens LE which a person will wear the eyeglass. This makes it possible for the operator to position the lens LE so that the three dot marks become parallel with the x-axis while viewing the image of the lens LE displayed on the measuring screen 3c.
  • a Hole-set button 33b on the measuring screen 3c is pressed after the hole HO is specified, and thus a setting screen 3d (see Fig. 20 ) showing the specified hole HO in an enlarged form appears.
  • a hole mark MH is displayed on the hole HO and adjusted while being moved with a stylus pen or the like not shown, thereby determining the position of the hole HO.
  • a hole size button 34a on the setting screen 3d is pressed to variously adjust the size of the hole mark MH to determine the size of the hole HO.
  • the determined size of the hole HO is displayed in a hole size box 34b.
  • the obtained outer shape data and the hole data are stored in the memory 51.
  • the data stored in the memory 51 can be output to a hole-making device (an eyeglass lens processing apparatus including a hole-making part) connected to an output part 52.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Eyeglasses (AREA)

Claims (8)

  1. Dispositif de fixation de ventouse (1) pour fixer une ventouse (CU) à un verre de lunettes (LE), comprenant :
    une monture de verre (100) sur laquelle le verre doit être monté ;
    au moins trois broches de support (120) prévues sur la monture de verre pour supporter le verre lorsqu'une surface de réfraction arrière du verre est amenée en contact avec les broches de support ; et
    un premier mécanisme de déplacement (102, 110, 112, 114, 130, 132, 134, 140, 143, 145, 147, 149) adapté pour déplacer simultanément les broches de support pour modifier une distance de chaque broche de support par rapport à un axe central (L1) pour la fixation de la ventouse ;
    caractérisé par :
    un dispositif de serrage de verre (200) pour serrer le verre en coopération avec la monture de verre lorsque le verre est monté sur la monture de verre ;
    au moins trois broches de pression (220) prévues sur le dispositif de serrage de verre pour serrer le verre lorsqu'une surface de réfraction avant du verre est amenée en contact avec les broches de pression ; et
    un deuxième mécanisme de déplacement (212, 214, 214a, 216, 218, 222, 230, 232, 234, 238, 239) adapté pour déplacer simultanément les broches de pression pour modifier une distance de chaque broche de pression par rapport à l'axe central de fixation.
  2. Dispositif de fixation de ventouse selon la revendication 1, dans lequel
    les broches de support sont prévues sur la monture de verre à des positions espacées à des intervalles égaux et selon des angles égaux par rapport à l'axe central de fixation, et
    le premier mécanisme de déplacement amène les broches de support à se déplacer de sorte que la distance de chaque broche de support par rapport à l'axe central de fixation soit constamment égale.
  3. Dispositif de fixation de ventouse selon la revendication 1, comprenant en outre des moyens de sélection de mode (30b, 30c) pour effectuer une sélection entre un premier mode de fixation de la ventouse à un verre non traité et un deuxième mode de fixation de la ventouse à un verre traité ;
    dans lequel, lorsque le deuxième mode est sélectionné, les premier et deuxième mécanismes de déplacement amènent les broches de support et les broches de pression à se déplacer de sorte que les distances de chaque broche de support et de chaque broche de pression par rapport à l'axe central de fixation soient plus courtes que celles du premier mode.
  4. Dispositif de fixation de ventouse selon la revendication 3, comprenant en outre :
    une unité de maintien (102, 110, 110a, 112, 112a, 114, 116, 142, 144, 146, 148) adaptée pour maintenir les broches de support de sorte qu'un plan de support (He) défini par les broches de support soit inclinable ; et
    une unité (160, 162, 164) adaptée pour permettre à l'unité de maintien de s'incliner lorsque le premier mode est sélectionné et pour empêcher l'unité de maintien de s'incliner de sorte que le plan de support soit sensiblement horizontal lorsque le deuxième mode est sélectionné.
  5. Dispositif de fixation de ventouse selon la revendication 1, comprenant en outre :
    une table de verre (12) ;
    une unité de formation d'image (28) pour capturer une image du verre monté sur la table de verre ;
    une partie arithmétique (50) adaptée pour obtenir une forme extérieure du verre en appliquant un traitement d'image à l'image capturée ; et
    des moyens de sélection de mode (30d) pour sélectionner un troisième mode pour obtenir la forme extérieure du verre ;
    dans lequel, lorsque le troisième mode est sélectionné, le premier mécanisme de déplacement amène chaque broche de support à se déplacer à une position d'attente à l'extérieur de la table de verre.
  6. Dispositif de fixation de ventouse selon la revendication 5, dans lequel
    le sélecteur de mode est agencé pour effectuer une sélection entre un premier mode de fixation de la ventouse à un verre non traité et un deuxième mode de fixation de la ventouse à un verre traité, et
    le premier mécanisme de déplacement amène chaque broche de support à se déplacer à une première position de support plus proche de l'axe central de fixation que la position d'attente lorsque le premier mode est sélectionné et à une deuxième position de support plus proche de l'axe central de fixation que la première position de support lorsque le deuxième mode est sélectionné.
  7. Dispositif de fixation de ventouse selon la revendication 1, dans lequel
    les broches de pression sont prévues sur le dispositif de serrage de verre à des positions espacées à des intervalles égaux et selon des angles égaux par rapport à l'axe central de fixation et
    le deuxième mécanisme de déplacement amène les broches de pression à se déplacer de sorte que la distance de chaque broche de pression par rapport à l'axe central de fixation soit constamment égale.
  8. Dispositif de fixation de ventouse selon la revendication 1, comprenant en outre :
    un troisième mécanisme de déplacement (250) adapté pour déplacer le dispositif de serrage de verre dans une direction de rapprochement de la monture de verre pour serrer le verre ; et
    des moyens de sélection de mode (30b, 30c) pour effectuer une sélection entre un premier mode de fixation de la ventouse à un verre non traité et un deuxième mode de fixation de la ventouse à un verre traité ; et
    dans lequel le troisième mécanisme de déplacement amène le dispositif de serrage de verre à se déplacer pour serrer le verre lorsque le premier mode est sélectionné et n'amène pas le dispositif de serrage de verre à se déplacer lorsque le deuxième mode est sélectionné.
EP08021079A 2006-03-31 2007-03-30 Appareil de fixation de tasses Not-in-force EP2025462B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006101283A JP2007268700A (ja) 2006-03-31 2006-03-31 カップ取付け装置
EP07006719A EP1839810B1 (fr) 2006-03-31 2007-03-30 Dispositif de pose de ventouse

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP07006719A Division EP1839810B1 (fr) 2006-03-31 2007-03-30 Dispositif de pose de ventouse
EP07006719.4 Division 2007-03-30

Publications (3)

Publication Number Publication Date
EP2025462A2 EP2025462A2 (fr) 2009-02-18
EP2025462A3 EP2025462A3 (fr) 2009-05-27
EP2025462B1 true EP2025462B1 (fr) 2010-07-28

Family

ID=38180694

Family Applications (3)

Application Number Title Priority Date Filing Date
EP07006719A Not-in-force EP1839810B1 (fr) 2006-03-31 2007-03-30 Dispositif de pose de ventouse
EP08021079A Not-in-force EP2025462B1 (fr) 2006-03-31 2007-03-30 Appareil de fixation de tasses
EP08021080A Not-in-force EP2025463B1 (fr) 2006-03-31 2007-03-30 Appareil de fixation de tasses

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP07006719A Not-in-force EP1839810B1 (fr) 2006-03-31 2007-03-30 Dispositif de pose de ventouse

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP08021080A Not-in-force EP2025463B1 (fr) 2006-03-31 2007-03-30 Appareil de fixation de tasses

Country Status (5)

Country Link
EP (3) EP1839810B1 (fr)
JP (1) JP2007268700A (fr)
KR (1) KR101381121B1 (fr)
DE (3) DE602007008091D1 (fr)
ES (3) ES2319578T3 (fr)

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Publication number Priority date Publication date Assignee Title
JP4920285B2 (ja) 2006-04-03 2012-04-18 株式会社ニデック カップ取付け装置
KR100972348B1 (ko) * 2008-03-11 2010-07-26 주식회사 휴비츠 인점 확인창이 형성된 블록커 및 이를 구비한 블록커일체형 3차원 자동 취형기
DE102011009400A1 (de) * 2010-12-22 2012-06-28 Schneider Gmbh & Co. Kg Vorrichtung zum Aufblocken von Brillengläsern
FR2974424B1 (fr) * 2011-04-21 2013-09-13 Essilor Int Support de lentille ophtalmique
FR2983313B1 (fr) * 2011-11-29 2014-06-27 Essilor Int Support de lentille ophtalmiquë pour dispositif de centrage
KR101327238B1 (ko) 2012-05-07 2013-11-11 주식회사 휴비츠 연결 블록 장착이 용이한 자동 렌즈 블록커
CN110086075A (zh) * 2019-04-26 2019-08-02 中国科学院长春光学精密机械与物理研究所 一种激光器谐振腔反射镜的远距离角度调节系统
KR102516904B1 (ko) * 2020-04-27 2023-04-03 주식회사 휴비츠 광 통과 및 반사 장치를 구비한 블로커
CN112658880A (zh) * 2020-12-18 2021-04-16 望江县天长光学仪器有限公司 一种光学镜片加工用的精磨抛光装置
CN113118917B (zh) * 2021-03-25 2022-07-12 长光卫星技术股份有限公司 一种用于反射镜的多自由度定位装置
KR102569662B1 (ko) 2021-07-27 2023-08-24 주식회사 휴비츠 립 블록 장착 장치 및 방법

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USRE18569E (en) * 1932-08-16 Assigitok to batrsch
FR2154320B1 (fr) * 1971-09-29 1974-05-10 Lunetiers
FR2608492B1 (fr) 1986-12-23 1989-04-21 Essilor Int Dispositif de glantage pour lentille ophtalmique et appareil de centrage comportant un tel dispositif de glantage
FR2652528A1 (fr) 1989-09-29 1991-04-05 Essilor Int Dispositif de glantage.
DE19502537C2 (de) * 1995-01-27 1998-07-16 Wernicke & Co Gmbh Vorrichtung zum Markieren von Brillengläsern mit Tintenstrahlen und Scheitelbrechwertmesser
FR2794045B1 (fr) * 1999-05-27 2001-08-10 Briot Int Dispositif de centrage et de positionnement d'une ebauche de verre de lunettes
JP3828686B2 (ja) * 1999-08-31 2006-10-04 株式会社ニデック カップ取付装置
IL132436A0 (en) * 1999-10-18 2001-03-19 Prolaser Ltd Automatic attachment of a finishing block to an ophthalmic lens
JP4104297B2 (ja) 2001-03-29 2008-06-18 株式会社ニデック カップ取付け装置
JP2004034166A (ja) * 2002-06-28 2004-02-05 Nidek Co Ltd レンズ加工システム
FR2861005A1 (fr) * 2003-10-16 2005-04-22 Essilor Int Centreur-bloqueur a mecanisme de serrage modulaire

Also Published As

Publication number Publication date
JP2007268700A (ja) 2007-10-18
KR101381121B1 (ko) 2014-04-04
EP1839810A1 (fr) 2007-10-03
EP2025462A2 (fr) 2009-02-18
DE602007008090D1 (de) 2010-09-09
EP2025463B1 (fr) 2010-07-28
DE602007000333D1 (de) 2009-01-22
EP2025463A2 (fr) 2009-02-18
KR20070098554A (ko) 2007-10-05
ES2349070T3 (es) 2010-12-22
ES2319578T3 (es) 2009-05-08
DE602007008091D1 (de) 2010-09-09
ES2349286T3 (es) 2010-12-29
EP2025463A3 (fr) 2009-05-27
EP2025462A3 (fr) 2009-05-27
EP1839810B1 (fr) 2008-12-10

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