WO2020004657A1 - Dispositif et procédé d'acquisition de données de forme de monture de lunettes, système de fourniture de verre et support d'enregistrement non transitoire lisible par ordinateur - Google Patents

Dispositif et procédé d'acquisition de données de forme de monture de lunettes, système de fourniture de verre et support d'enregistrement non transitoire lisible par ordinateur Download PDF

Info

Publication number
WO2020004657A1
WO2020004657A1 PCT/JP2019/025965 JP2019025965W WO2020004657A1 WO 2020004657 A1 WO2020004657 A1 WO 2020004657A1 JP 2019025965 W JP2019025965 W JP 2019025965W WO 2020004657 A1 WO2020004657 A1 WO 2020004657A1
Authority
WO
WIPO (PCT)
Prior art keywords
frame
shape data
rim
shape
stylus
Prior art date
Application number
PCT/JP2019/025965
Other languages
English (en)
Japanese (ja)
Inventor
喬弘 鈴江
Original Assignee
ホヤ レンズ タイランド リミテッド
喬弘 鈴江
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 ホヤ レンズ タイランド リミテッド, 喬弘 鈴江 filed Critical ホヤ レンズ タイランド リミテッド
Publication of WO2020004657A1 publication Critical patent/WO2020004657A1/fr

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/20—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring contours or curvatures, e.g. determining profile
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/20—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C1/00—Assemblies of lenses with bridges or browbars
    • G02C1/06—Bridge or browbar secured to or integral with closed rigid rims for the lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C13/00—Assembling; Repairing; Cleaning

Definitions

  • the present disclosure relates to spectacle lenses, and more specifically, to a technique for acquiring data for processing a lens mounted on a frame.
  • Patent Document 1 discloses a technique for “obtaining a processed eyeglass lens shape including a stepped processed shape of an eyeglass lens”.
  • the method for obtaining a spectacle lens processing shape for attaching a prescription lens having a thicker refractive power than the provided lens to the rim comprises the provided lens A lens contour obtaining step of obtaining a contour of the mounted lens, and a rim boundary obtaining step of obtaining an inner boundary of the rim on the mounted lens surface in a state where the mounted lens is mounted on the rim.
  • the step processing of the entire circumference of the lens is performed using the step amount obtained by the measurement, but the outer shape of the step-processed lens is not necessarily excellent in quality. It was hard to say. In many cases, a pre-processing test is required before the step processing, or fine adjustment of the size, correction of the step shape, and other fine corrections are required after the step processing.
  • the conventional technology for acquiring the external shape it can be realized only when the person acquiring the external shape of the lens, such as a processor, has a frame at hand, but it takes time and effort. In some cases, the accuracy was not good. For example, when scanning the outer shape of the lens, remove the dummy lens from the frame, place it on the scanner base so that it is horizontal with the concave surface of the dummy lens facing up, and perform two-dimensional scanning with the scanner. Was being done. In this case, it is not always possible to say that the lens with the concave surface facing upward is in a horizontal state, and as a result, the outer shape of the lens after step processing does not match the shape of the rim of the frame, and the lens is inserted into the frame. The appearance after was not good. In addition, a PD (Pupillary Distance) deviation and an axis deviation also occurred.
  • PD Physical Pilly Distance
  • an object in one aspect is to provide an apparatus for measuring the shape of an eyeglass frame so that the processing accuracy of a lens is improved. That is.
  • An object in another aspect is to provide an apparatus capable of processing a lens according to the shape of a frame even when the frame is not at hand.
  • An object in another aspect is to provide a system in which the processing accuracy of a lens is improved.
  • Another object of the present invention is to provide a method for measuring the shape of a spectacle frame such that the processing accuracy of a lens is improved.
  • an apparatus for measuring a shape of an eyeglass frame includes: an acquiring unit configured to acquire shape data of the outer shape of the frame and shape data of the rim of the frame; and a rim such that a reference point of the shape data of the rim is a frame center based on the shape data of the outer shape. For converting the shape data of the rim, and output means for outputting the shape data of the outer shape and the converted rim shape data.
  • an apparatus for measuring the shape of a spectacle frame includes an acquisition unit for acquiring shape data of a frame outer shape and shape data of a rim of a frame, and a reference point of the shape data of the outer shape.
  • the output means further outputs a processing order for a lens to be fitted to the frame.
  • the apparatus further includes a display device for displaying whether or not the lens can be processed based on the external shape data and the converted rim shape data.
  • obtaining the shape data of the outer shape of the frame includes calculating a tilt angle of the frame by three-dimensional measurement, leveling the frame by tilting the frame by the tilt angle, Measuring the outer shape of the frame.
  • the obtaining means includes a stylus.
  • the stylus includes either a stylus whose tip is hemispherical or a stylus whose cross-section is part of a circle.
  • obtaining the rim shape data comprises raising the stylus along the concave rim of the frame while pressing the cylindrical portion of the stylus against the frame, and, after the stylus has stopped rising, Turning 360 degrees while maintaining the contact state between the stylus and the rim is included.
  • a lens comprising: the device according to any one of the above, and a device for outputting shape data of the outer shape of the frame and shape data of the rim output from the device.
  • a system is provided for:
  • a lens comprising: the apparatus according to any of the above; and a 3D printer for manufacturing a lens based on shape data of a frame outer shape and shape data of a rim.
  • a system is provided.
  • a method for measuring the shape of a spectacle frame.
  • the step of obtaining shape data of the outer shape of the frame, the step of obtaining shape data of the rim of the frame, and the reference point of the shape data of the rim is a frame center based on the shape data of the outer shape.
  • the method includes a step of converting the rim shape data, and a step of outputting the shape data of the outer shape and the converted rim shape data.
  • a method for measuring a shape of a spectacle frame includes obtaining shape data of a shape of the frame, obtaining shape data of a rim of the frame, and determining a shape of the shape data of the shape.
  • the method includes a step of converting the shape data of the outer shape so that the point becomes a frame center based on the shape data of the rim, and a step of outputting the shape data of the outer shape and the converted rim shape data.
  • the outputting step further includes outputting a processing order of the lens to be fitted into the frame.
  • the method according to an aspect further includes a step of displaying whether or not the lens can be processed based on the shape data of the outer shape and the shape data of the converted rim.
  • acquiring shape data of the outer shape of the frame includes calculating a tilt angle of the frame by three-dimensional measurement, leveling the frame by tilting the frame by the tilt angle, Measuring the outer shape of the completed frame.
  • the step of obtaining includes obtaining shape data with a stylus.
  • acquiring the rim shape data includes raising the stylus along the concave rim of the frame while pressing the cylindrical portion of the stylus against the frame; and, after the stylus stops rising, the stylus. And turning 360 degrees while maintaining the contact state between the rim and the rim.
  • a non-transitory computer-readable recording medium storing a plurality of instructions for controlling an apparatus for measuring a shape of an eyeglass frame.
  • the plurality of instructions include: obtaining a shape data of an outer shape of the frame in a horizontal state; obtaining shape data of a rim on a concave side of the frame; Converting the shape data of the rim so that the reference point of the shape data is a frame center based on the shape data of the outer shape, and outputting the shape data of the outer shape and the converted rim shape data. Let it run.
  • the plurality of instructions when a plurality of instructions are executed by a computer on a non-transitory computer-readable recording medium, the plurality of instructions cause the computer to obtain shape data of a frame outer shape. Acquiring the shape data of the frame rim, converting the shape data of the outer shape so that the reference point of the shape data of the outer shape is a frame center based on the shape data of the rim, Outputting the converted rim shape data.
  • the outputting step further includes outputting a processing order of a lens to be fitted into the frame.
  • a non-transitory computer-readable recording medium when a plurality of instructions are executed by a computer, the plurality of instructions are based on the shape data of the outer shape and the shape data of the converted rim. A step of displaying whether or not the lens can be processed is further executed.
  • acquiring the shape data of the outer shape of the frame includes calculating the tilt angle of the frame by three-dimensional measurement, and tilting the frame by the tilt angle. Leveling and measuring the profile of the leveled frame.
  • the step of acquiring includes acquiring shape data with a stylus.
  • acquiring the rim shape data includes raising the stylus along the concave rim of the frame while pressing the cylindrical portion of the stylus against the frame; After the ascent of the stylus has stopped, turning 360 degrees while maintaining the contact state between the stylus and the rim.
  • the external shape of the spectacle frame can be obtained with high accuracy, so that the processing accuracy of the lens can be improved.
  • the lens can be processed according to the shape of the frame even when the frame is not at hand.
  • FIG. 1 is a diagram illustrating an outline of a configuration of a system 100 according to an embodiment.
  • FIG. 4 is a block diagram illustrating a hardware configuration of a general-purpose computer 200 functioning as a terminal 120 or a terminal 130.
  • 3 is a flowchart illustrating a part of a process performed by the system 100.
  • FIG. 3 is a diagram illustrating an appearance of a frame tracer 110.
  • FIG. 4 is a diagram schematically illustrating a state where a frame tracer measures an outer shape of a rim of a frame.
  • FIG. 2 is a diagram illustrating an appearance of a stylus 115 according to one embodiment.
  • FIG. 3 is a diagram illustrating a state in which a stylus 115 according to one embodiment is in contact with an inner circumference of a rim 401.
  • FIG. 5 is a cross-sectional view illustrating a state in which stylus 115 and rim 401 are in contact according to one embodiment.
  • FIG. 4 is a diagram illustrating an outer shape of a rim 401 obtained based on two-dimensional shape data obtained by a frame tracer.
  • FIG. 4 is a diagram illustrating an outer shape of a rim 401 obtained based on three-dimensional shape data obtained by a frame tracer.
  • step shape data is acquired, for example, as follows.
  • the measurer performs three-dimensional measurement of the frame shape using a known measuring device (frame tracer), and the measuring device calculates the tilt angle of the frame.
  • the tilt mechanism of the measuring device tilts the frame by the same angle as the tilt angle to make the frame horizontal with one eye.
  • the tilt mechanism is realized by, for example, a Frame @ Swing method mounted on a frame tracer (product number: GT5000) provided by HOYA.
  • the measuring device measures the outer shape of the frame which is maintained horizontally.
  • the measuring device measures the outer shape of the frame by tracing the base (groove) of the rim on which the lens is fitted, and acquires the measurement result as the first frame shape.
  • the measurement device acquires the second frame shape. For example, the measuring device raises the stylus along the concave rim of the frame while pressing the cylindrical portion of the stylus against the inner peripheral portion of the frame. The stylus stops when the projection of the stylus hits the frame. When the stylus stops, the measuring device applies a load above the stylus to maintain the state of contact between the stylus and the frame, and makes the stylus make a full circuit along the inner periphery of the frame to obtain three-dimensional shape data of the frame. To get.
  • the measuring device converts the obtained two shape data into conventional frame shape data, and converts the shape data of the rim on the concave side of the frame into a polar coordinate system (r ( ⁇ )).
  • the reason for the conversion is that the frame center based on the frame shape data does not match the frame center based on the rim shape data.
  • Each data after conversion calculated by the measuring device is input to the data communication terminal.
  • the data communication terminal is realized by, for example, a general-purpose computer having a known configuration.
  • the data communication terminal is connected to the control device of the lens processing machine via the Internet, a VPN (Virtual Private Network) or another communication line.
  • the processing machine is used by the whole eyeglasses or by the companies that provide the lenses.
  • the control device is used by the business operator or by a third party who has a close relationship with the business operator.
  • the data communication terminal transmits the lens processing order and the converted shape data obtained for the lens to the control device of the lens maker.
  • the control device receives the processing order and each shape data, the order for requesting the step processing of the lens is established.
  • the processing machine processes the lens based on each shape data. More specifically, after marking and a lens block, the lens is put into a processing machine in the same manner as in a normal cutting process.
  • the control device transmits the first shape data (outer shape data of the frame) and the second shape data (rim shape data) of the step processing to the processing machine. .
  • the processing machine performs the outer shape processing and the step processing based on the given data, with the frame center of the frame shape as a position reference.
  • the lens maker measures the circumference of the lens and supplies the processed lens (also referred to as a cut lens) to a customer (a spectacles store). If an order to place the lens in the frame has been issued, the customer places the lens in the frame (rim) of the frame. According to such a configuration, it is ensured that the step shape formed on the outer periphery of the lens corresponds to the shape of the rim of the spectacle frame, so that the accuracy in fitting the lens to the rim can be improved.
  • control device may notify the data communication terminal of the fact.
  • a prototype of a lens may be created using each shape data obtained by measuring the eyeglass frame.
  • the lens may be manufactured by a 3D printer using each shape data output from the frame tracer.
  • the spectacles store can put the prototype lens manufactured by the 3D printer into the spectacle frame selected by the general user.
  • a general user can check the usability by wearing spectacles in which the prototype lens is fitted.
  • the step-processed lens is held by the step formed on the inner peripheral portion of the frame.
  • the lens is fitted to a predetermined position obtained by the measurement with respect to the frame. Can be suppressed.
  • FIG. 1 is a diagram showing an outline of a configuration of a system 100 according to one embodiment.
  • the system 100 is realized by a spectacles store 101 and a lens maker 102.
  • the eyeglass store 101 includes a frame tracer 110 and a terminal 120.
  • the lens maker 102 includes a terminal 130 and a lens processing machine 140.
  • the terminal 120 and the terminal 130 are communicably connected to each other by, for example, the Internet or a VPN (Virtual Private Network).
  • VPN Virtual Private Network
  • the frame tracer 110 includes an input IF (Interface) 111, a control circuit 112, a tilt mechanism 113, an actuator 114, a stylus 115, an amplifier 116, an AD (Analog to Digital) converter 117, an arithmetic circuit 118, And an output IF 119.
  • the frame tracer 110 measures the shape of the frame of the glasses, in particular, the shape of the rim.
  • the frame tracer 110 traces the base of the rim (groove, rim line) and traces the end receiving the lens.
  • a rim for receiving a lens is configured in a stepped shape.
  • the input IF 111 receives an input of an instruction to the frame tracer 110.
  • the input IF 111 is implemented by, for example, a touch panel or other soft keys, a dial switch, or other hard keys.
  • the control circuit 112 controls the operation of the frame tracer 110 based on an instruction given to the input IF 111. In one aspect, the control circuit 112 controls the position of the tilt mechanism 113. In another aspect, control circuit 112 sends commands to actuator 114 to move or pivot stylus 115.
  • the tilt mechanism 113 is configured to rotate in order to change the attitude (inclination) of the frame.
  • the tilt mechanism 113 changes the inclination of the tray on which the frame is placed, for example.
  • the actuator 114 turns the stylus 115. Further, the actuator 114 moves the stylus 115 so as to rotate the inner circumference of the rim.
  • Amplifier 116 amplifies an analog signal output according to movement of stylus 115.
  • the amplified signal is input to the AD converter 117.
  • the AD converter 117 converts an analog signal into a digital signal.
  • the digital signal is input to the arithmetic circuit 118.
  • the arithmetic circuit 118 calculates frame shape data, particularly rim shape data, using the input digital signal. For example, the arithmetic circuit 118 calculates the tilt angle of the frame by three-dimensional measurement, and measures the outer shape of the leveled frame by tilting the tilt angle.
  • the calculated shape data includes two-dimensional data and three-dimensional data.
  • the output IF 119 outputs the shape data obtained by the arithmetic circuit 118 to the outside of the frame tracer 110.
  • the shape data is input to the terminal 120.
  • the terminal 120 receives the data acquired by the frame tracer 110.
  • the terminal 120 is realized by, for example, a general-purpose computer having a known configuration. General purpose computers may include desktop terminals, laptop terminals, tablet terminals, and the like.
  • the terminal 120 is connected to the terminal 130.
  • the terminal 120 transmits to the terminal 130 the shape data obtained by the measurement of the frame and the order data requesting the processing of the lens used for the frame.
  • the terminal 130 receives each data transmitted from the terminal 120.
  • the terminal 130 is also realized by a general-purpose computer having a known configuration, similarly to the terminal 120.
  • the terminal 130 verifies by simulation whether or not lens processing using the received data is actually possible.
  • the terminal 130 transmits to the terminal 120 that the order for requesting the lens processing has been received. Further, terminal 130 transmits the data to lens processing machine 140.
  • the terminal 130 confirms that lens processing using the received data cannot be realized, the terminal 130 notifies the terminal 120 of the fact and does not accept an order based on the order data.
  • the groove rim line
  • the lens processing machine 140 When the order is accepted, the lens processing machine 140 performs the step processing of the lens using the shape data received by the terminal 130 from the terminal 120.
  • the processed lens is transmitted to the spectacles store 101 as a processed lens when it is determined that the lens is non-defective after a predetermined inspection process.
  • the terminal 120 may transmit shape data of the outer shape of the frame and shape data of the rim to a terminal (not shown) used by the lens designer.
  • the lens designer can design the lens using these shape data and change the specifications of the lens as needed, so that the design efficiency can be improved.
  • the frame tracer 110 shown in FIG. 1 may include, but is not limited to, at least one processor (CPU), at least one ASIC (Application Specific Integrated Circuit), and / or at least one FPGA (Field Programmable Gate Array). It can be realized by a circuit including at least one semiconductor integrated circuit.
  • the at least one processor is configured to perform all or some functions of the frame tracer 110 by reading one or more instructions from at least one tangible machine-readable storage medium.
  • Such storage media include, but are not limited to, any kind of hard disk, any kind of optical medium such as CD (Compact Disc) or DVD (Digital Verstaile Disc), any kind of medium such as volatile memory and non-volatile memory. It can take many forms, including a semiconductor memory.
  • Volatile media can include DRAM (Dynamic Random Access Memory) and SRAM (Static Random Access Memory). Non-volatile media may include ROM (Read Only Memory) or NVRAM (Non-Volatile RAM).
  • a semiconductor memory can also be a semiconductor circuit that can be part of a circuit with at least one processor.
  • the ASIC may be an integrated circuit configured to perform all or some of the functions shown in FIG.
  • An FPGA may be an integrated circuit configured to perform, after manufacture, all or some of the functions illustrated in FIG.
  • FIG. 2 is a block diagram showing a hardware configuration of general-purpose computer 200 functioning as terminal 120 or terminal 130.
  • the computer 200 includes, as main components, a CPU (Central Processing Unit) 1 for executing a program, a mouse 2 and a keyboard 3 for receiving an instruction input by a user of the computer 200, and data generated by execution of the program by the CPU 1.
  • a RAM 4 for volatilely storing data input via the mouse 2 or the keyboard 3
  • a hard disk 5 for nonvolatilely storing data
  • Each component is mutually connected by a bus.
  • the optical disk drive 6 is loaded with a CD-ROM 9 and other optical disks.
  • the communication IF 7 includes, but is not limited to, a USB (Universal Serial Bus) interface, a wired LAN (Local Area Network), a wireless LAN, a Bluetooth (registered trademark) interface, and the like.
  • the processing in the computer 200 is realized by each hardware and software executed by the CPU 1.
  • Such software may be stored in the hard disk 5 in advance.
  • the software is stored in a CD-ROM 9 or other non-volatile computer-readable data recording medium, and is distributed as a program product.
  • the software may be provided as a downloadable program product by an information provider connected to the Internet or another network.
  • Such software is temporarily stored in the hard disk 5 after being read from the data recording medium by the optical disk drive 6 or another data reader, or downloaded via the communication IF 7.
  • the software is read from the hard disk 5 by the CPU 1 and stored in the RAM 4 in the form of an executable program.
  • CPU 1 executes the program.
  • Each component constituting the computer 200 shown in FIG. 2 is a general component. Therefore, it can be said that an essential part according to the present embodiment is a program stored in computer 200. Since the operation of the hardware of computer 200 is well known, detailed description will not be repeated.
  • the data recording medium is not limited to a CD-ROM, FD (Flexible Disk), and hard disk, but may be a magnetic tape, a cassette tape, an optical disk (MO (Magnetic Optical Disc) / MD (Mini Disc) / DVD (Digital Versatile Disc)). ), IC (Integrated Circuit) card (including memory card), optical card, mask ROM, EPROM (Electronically Programmable Read-Only Memory), EEPROM (Electronically Erasable Programmable Read-Only Memory), flash ROM, SSD (Solid State Drive) ) May be a non-volatile data recording medium that carries a fixed program such as a semiconductor memory.
  • IC Integrated Circuit
  • the program referred to here may include not only a program directly executable by the CPU but also a program in a source program format, a compressed program, an encrypted program, and the like.
  • FIG. 3 is a flowchart illustrating a part of the processing performed in system 100.
  • step S310 the system 100 three-dimensionally measures the frame with the frame tracer 110 having a known mechanical mechanism capable of tilting the frame, and calculates the tilt angle of the frame.
  • step S320 after calculating the tilt angle of the frame, the frame tracer 110 tilts the frame by a tilt mechanism equivalent to the tilt angle to bring the frame into a horizontal state with one eye.
  • step S330 the frame tracer 110 measures the outer shape of the frame again.
  • step S340 the frame tracer 110 raises the stylus along the concave rim of the frame while pressing the cylindrical portion of the stylus against the frame.
  • the frame tracer 110 applies 360 ° while applying a load upward. Rotate to measure the shape and obtain a three-dimensional shape.
  • step S350 the frame tracer 110 acquires frame shape data a (r ⁇ z, xyz) and step shape data b (r ⁇ z, xyz) as a result of the three-dimensional shape measurement.
  • the frame shape data a corresponds to data obtained by tracing a groove at the base of a rim constituting the frame.
  • the step shape data b corresponds to data obtained by tracing the end of the rim on the inner side (eyeball side) of the concave surface of the frame.
  • step S360 the frame tracer 110 replaces the acquired frame shape data a and step shape data b with the format of the conventional frame shape data. Further, the frame tracer 110 replaces the step shape data b with the radius data of the frame shape data a with the frame center as a reference point.
  • step S370 the frame tracer 110 converts the frame shape data a into frame shape data conforming to the VCA (Visual Clip Art) format.
  • the frame tracer 110 further converts the frame shape data a into shape data with the reference point of the step shape based on the step shape data b as the frame center.
  • step S380 terminal 120 transfers these two data from the front-end system to the factory server (for example, terminal 130) when transmitting the cut order.
  • the terminal 130 uses these data to determine whether or not the difference between the outer shape and the concave rim shape is equal to or greater than a predetermined value. For example, when the difference is 9 mm or more, the factory server (terminal 130) notifies the terminal 120 that the order cannot be received.
  • the terminal 130 determines that lens processing based on the data transmitted from the terminal 120 is possible, the terminal 130 transmits the frame shape data a and the step shape data b, and an instruction to start lens processing to the lens processing machine 140. I do.
  • the lens processing machine 140 processes the lens using these data.
  • the processed lens is sent from the lens maker 102 to the spectacle store 101.
  • FIG. 4 is a diagram illustrating an appearance of the frame tracer 110.
  • the frame tracer 110 includes a tilt mechanism 113 and a main body 410.
  • the tilt mechanism 113 can rotate by a tilt angle 420 by a rotation mechanism controlled by the control circuit 112 disposed inside the main body 410.
  • FIG. 5 is a diagram schematically illustrating how the frame tracer 110 measures the outer shape of the rim 401 of the frame 400.
  • stylus 115 is moved to the rim line of rim 401 in response to movement of actuator 114. Thereafter, the stylus 115 rotates and turns while maintaining the state of contact with the rim 401, and measures the shapes of the rim 401 for the right eye lens and the rim 402 for the left eye of the frame 400, respectively.
  • FIG. 6 is a diagram illustrating an appearance of stylus 115 according to one embodiment.
  • the stylus 115 has a protrusion 610.
  • the protrusion 610 hits the step, the contact state between the rim 401 and the stylus 115 is maintained.
  • FIG. 7 is a diagram showing a state in which stylus 115 according to one embodiment is in contact with the inner periphery of rim 401.
  • FIG. 8 is a cross-sectional view showing a state in which stylus 115 and rim 401 are in contact according to one embodiment.
  • the protrusion 610 is in contact with the side surface of a groove (rim line) formed on the inner periphery of the rim 401.
  • the end of the outer periphery of the step-processed lens is fitted into the groove. It is desirable that the outer diameter of the protrusion 610 be smaller than the interval between the grooves.
  • the shape of the protrusion 610 be cylindrical at the side surface and hemispherical at the tip (semicircular cross section). If the projection 610 is shaped like a flat plate and the stylus is scanned along the curve of the rim 401, the projection 610 may be caught by friction with the rim, and the rim shape may not be measured properly. is there. However, if the side surface of the protrusion 610 is cylindrical and the tip is hemispherical, the inside can be measured smoothly along the curve of the rim 401.
  • the stylus 115 is in contact with the end of the groove of the rim 401 on the protrusion 610 and the side surface of the shaft of the stylus 115.
  • the force by which the protrusion 610 presses the rim 401 acts on the stylus 115 so that this contact state is maintained.
  • a point 750 defines the inside of the rim groove serving as the lens outer shape.
  • the point 751 defines the inner diameter of the rim to be the step processing position.
  • FIG. 9 is a diagram illustrating the outer shape of the rim 401 obtained based on the two-dimensional shape data obtained by the frame tracer.
  • Line 910 represents the contour of the concave end of the frame. In one aspect, the contour corresponds to a contact portion between the stylus 115 and the rim 401.
  • the line 920 corresponds to a groove formed inside the rim 401.
  • FIG. 10 is a diagram showing the outer shape of the rim 401 obtained based on the three-dimensional shape data obtained by the frame tracer.
  • line 1010 represents the contour of the concave end of the frame.
  • the contour corresponds to a contact portion between the stylus 115 and the rim 401.
  • the line 1020 corresponds to a groove formed inside the rim 401.
  • the present embodiment it is possible to acquire accurate data of the step shape of the rim of the selected frame. As a result, the framing accuracy when the lens processed using the data is fitted to the rim of the frame is improved. Further, when processing the lens, the actual thing of the selected frame is not always necessary, so that the place where the frame is selected and the place where the lens is processed may be separated.
  • a potential customer selects a frame at a spectacles store, obtains shape data by measuring the outer shape of the selected frame, processes the lens using the shape data sent from the spectacles store, and processes It is also possible to send the obtained lens to an eyeglass store.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Optics & Photonics (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Eyeglasses (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Abstract

La présente invention concerne une technologie pour mesurer une forme de monture d'une manière qui améliore la précision de traitement de gradin de verre. Dans la présente invention, un traceur de monture comprend un mécanisme d'inclinaison (113) apte à amener une monture à être horizontale, un stylet (115), un circuit de commande (112) pour commander le fonctionnement du mécanisme d'inclinaison et du stylet, et un circuit de calcul (118) pour calculer des données de forme sur la base de la sortie du stylet. Le circuit de commande commande un actionneur (114) de façon à amener le stylet à tracer une partie de rainure d'un rebord d'une monture de lunettes et tracer un gradin formé dans le rebord de la monture de lunettes. Le circuit de calcul (118) convertit des données de forme de gradin de rebord de telle sorte que le centre de monture de données de forme pour la forme externe de la monture est une référence commune. Une interface de sortie (119) délivre en sortie les données de forme pour la forme externe et les données de forme converties à un terminal (120) connecté au traceur de monture (110). Chaque type de données de forme de sortie est transmis à un terminal de fabricant de verres (130).
PCT/JP2019/025965 2018-06-29 2019-06-28 Dispositif et procédé d'acquisition de données de forme de monture de lunettes, système de fourniture de verre et support d'enregistrement non transitoire lisible par ordinateur WO2020004657A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-124090 2018-06-29
JP2018124090A JP7081996B2 (ja) 2018-06-29 2018-06-29 眼鏡フレームの形状データを取得するための装置および方法、レンズを提供するためのシステム、ならびに、当該装置を制御するプログラム

Publications (1)

Publication Number Publication Date
WO2020004657A1 true WO2020004657A1 (fr) 2020-01-02

Family

ID=68984456

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/025965 WO2020004657A1 (fr) 2018-06-29 2019-06-28 Dispositif et procédé d'acquisition de données de forme de monture de lunettes, système de fourniture de verre et support d'enregistrement non transitoire lisible par ordinateur

Country Status (2)

Country Link
JP (1) JP7081996B2 (fr)
WO (1) WO2020004657A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0666553A (ja) * 1992-08-06 1994-03-08 Hoya Corp 眼鏡枠形状測定補正方法
JP2009243950A (ja) * 2008-03-28 2009-10-22 Topcon Corp 玉型形状測定装置
US20100094589A1 (en) * 2006-12-18 2010-04-15 Essilor International (Compagnie Generale D'optique) Method of correcting the shape of a sensed curve approximating a longitudinal trace of a bezel of an eyeglass frame, and a method of acquiring the shape of an outline of such a bezel
WO2014103800A1 (fr) * 2012-12-25 2014-07-03 Hoya株式会社 Système d'usinage de lentille, dispositif de terminal de placement de commande et procédé de commande de lentille

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0666553A (ja) * 1992-08-06 1994-03-08 Hoya Corp 眼鏡枠形状測定補正方法
US20100094589A1 (en) * 2006-12-18 2010-04-15 Essilor International (Compagnie Generale D'optique) Method of correcting the shape of a sensed curve approximating a longitudinal trace of a bezel of an eyeglass frame, and a method of acquiring the shape of an outline of such a bezel
JP2009243950A (ja) * 2008-03-28 2009-10-22 Topcon Corp 玉型形状測定装置
WO2014103800A1 (fr) * 2012-12-25 2014-07-03 Hoya株式会社 Système d'usinage de lentille, dispositif de terminal de placement de commande et procédé de commande de lentille

Also Published As

Publication number Publication date
JP7081996B2 (ja) 2022-06-07
JP2020003380A (ja) 2020-01-09

Similar Documents

Publication Publication Date Title
JP7257448B2 (ja) 固定具なしのレンズメータ及びその操作方法
JP7541970B2 (ja) レンズの１つ以上の光学パラメータを決定するための機器、システム、および方法
JP4086429B2 (ja) 眼鏡レンズの評価方法及び評価装置
JP2013190942A (ja) 視線誤差補正装置、そのプログラム及びその方法
JP7545978B2 (ja) レンズの１つ以上のパラメータを決定する装置、システム、及び方法
EP2820377B1 (fr) Processeur de données pour un appareil métrologique pour la mesure d'une caractéristique de surface et méthode de mesure correspondante
JP6510630B2 (ja) 眼鏡装用パラメータ測定システム、測定用プログラム、およびその測定方法、ならびに眼鏡レンズの製造方法
US9182499B2 (en) Inspection device of radioactive waste body and inspection method of radioactive waste body
JP2017003279A (ja) カメラ校正方法
JP2011508278A (ja) 眼科用レンズをフレームに嵌合させるためのパラメタの決定方法
EP2863171B1 (fr) Procédé de mesure avec amélioration de la précision de l'acquisition d'un point de mesure
WO2020004657A1 (fr) Dispositif et procédé d'acquisition de données de forme de monture de lunettes, système de fourniture de verre et support d'enregistrement non transitoire lisible par ordinateur
TWI632529B (zh) 判定一非對稱鏡片之靜止角之系統與方法
JP6474587B2 (ja) 測定値補正方法、測定値補正プログラム及び測定装置
JP2017211313A (ja) 画像処理装置、画像処理方法およびプログラム
JP6446176B2 (ja) 眼鏡レンズ製造システム及び眼鏡レンズ製造方法
JP4477909B2 (ja) 眼鏡装用シミュレーションシステム、および画像生成方法
JP6162907B2 (ja) 形状測定装置及び形状測定方法
US20150025844A1 (en) Surface measurement apparatus and method
WO2018103143A1 (fr) Procédé et appareil d'imagerie pour dispositif de réalité virtuelle, et dispositif de réalité virtuelle
JP6405195B2 (ja) 測定値補正方法、測定値補正プログラム及び測定装置
JP2016167038A (ja) 眼鏡装用パラメータ測定装置、眼鏡装用パラメータ測定プログラムおよび撮像制御方法
JP5211656B2 (ja) トロイダル面評価方法
JP2016070706A (ja) 算出方法、計測装置、プログラム及び情報処理装置
JP4462772B2 (ja) 形状測定装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19826718

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19826718

Country of ref document: EP

Kind code of ref document: A1