WO2001079918A1

WO2001079918A1 - Production method for spectacles-frame

Info

Publication number: WO2001079918A1
Application number: PCT/JP2000/002569
Authority: WO
Inventors: Takashi Aoyama
Original assignee: Aoyama Gankyo Kabushikikaisha
Priority date: 2000-04-19
Filing date: 2000-04-19
Publication date: 2001-10-25

Abstract

A production method for a spectacles-frame optimally fitted to the face of a customer by using 3-D profile data of the face obtained by using a 3-D face profile measuring device. A production method for a spectacles-frame, capable of providing for sale spectacles snugly fitted to the face of a customer and not keeping the customer waiting at the shop for a long time even when a specialist capable of fine-adjusting the spectacles-frame is not available at the shop. A production method for a spectacles-frame (22) optimally fitted to an examinee (2), wherein fabricating-control data generated based on 3-D face profile data is input to a 3-D profile model fabricating machine that uses a 3-D face profile measuring device (1) to pattern-measure the face of the examinee (2) three-dimensionally and generate the 3-D face profile data, and that fabricates a work according to the fabricating-control data to produce a 3-D profile product, to thereby produce a split-type 3-D face profile model (44) and adjust and fabricate the spectacles-frame (22) for fitting to the 3-D face profile model.

Description

Description Eyeglass frame manufacturing method Technical field

The present invention relates to a method for manufacturing a spectacle frame that fits a customer's face in an optimal state using three-dimensional face data obtained using a three-dimensional face shape measuring apparatus. Background art

If there is no technician who can adjust the details of the spectacle frame at the store, it will not be possible to process and adjust the spectacle frame for the customer, so it is possible to sell and provide the most fit eyeglasses to the customer's face Can not. Therefore, at least one technician had to wait at the store.

Further, even when the technician is at the store, it is necessary to have the customer stay at the store every time while adjusting and processing the eyeglass frame in order to provide the customer with the eyeglass frame to be fitted. Time was wasted on customers ο

The present invention has been made in view of the above problems, and an object of the present invention is to provide a perfect fit to the customer's face even when a technician who can adjust the details of the spectacle frame is not at the store. An object of the present invention is to provide a method for manufacturing spectacle frames that can sell and provide glasses to be cut and that does not require customers to wait for a long time in a store. Disclosure of the invention The eyeglass frame manufacturing method according to claim 1, wherein the three-dimensional face shape measuring device generates a three-dimensional face shape data by measuring the face of the subject three-dimensionally, and the processing control data. The processing control data generated based on the 3D facial shape data is input to a 3D shape model processing machine that processes the workpiece according to It is a method of manufacturing a spectacle frame that fits best to the subject by manufacturing and adjusting the spectacle frame to fit the three-dimensional face shape model. The customer only needs to be present for a short period of time when the above-mentioned pattern is measured by the measuring device, and it is not necessary to wait a long time for adjusting the processing of the eyeglass frame. Even if there is no technician who adjusts the details of the eyeglass frame at the store, the 3D face shape data about the customer's face is acquired by the 3D face shape measurement device at the store, and this 3D face shape is obtained. The data is sent to a recording medium on which the three-dimensional face shape data is recorded, or the three-dimensional face shape data is transmitted through a telecommunication line, and the technician receives the three-dimensional face. Using the shape data, it is possible to manufacture eyeglasses that fit perfectly to the customer's face.

3. The eyeglass frame manufacturing method according to claim 2, wherein the three-dimensional face shape model includes an eye and a nose of the three-dimensional face shape model. A first right ear shape model including a right ear of the three-dimensional face shape model, and a first left ear shape model including a left ear of the three-dimensional face shape model. And the eye-nose shape model, the first right ear shape model, and the first left ear shape model are relative to each other between the eyes, roar, and both ears of the three-dimensional face shape model. A divided 3D face fixed in the same positional relationship as the positional relationship Since the method is a shape model, the method has the same effect as the eyeglass frame manufacturing method according to claim 1 and can reduce the processing time of the three-dimensional face shape model. It also has the advantage of saving money. The eyeglass frame manufacturing method according to claim 3, wherein the three-dimensional face shape measuring device is configured such that an inspection plate body including an inspection plate and an ear hook portion having one end fixed thereto is hung on both ears. A 3D shape model processing machine that measures the examiner's face in three dimensions, generates 3D face shape data, processes the workpiece according to the processing control data, and manufactures a 3D shape. The eye and nose data of the processing control data generated based on the three-dimensional face shape data is input to produce an eye and nose shape model including the eyes and the nose, and six degrees of freedom are provided in accordance with the operation control data. The two right-hand ears processed into a shape following the shape of the ear hooks of the inspection plate body are attached to the two six-axis manual purifiers with the mounting parts operable in Attach the shape model and the second left ear shape model. The eye-nose shape model is fixed in the middle of the second left ear shape model, and the shape of the back of the ear of the subject obtained from the position and inclination of the inspection plate body in the three-dimensional face shape data The operation control data generated based on the data is inputted to the two 6-axis manual purifiers, and the mounting portion is moved and inclined with respect to the eye / nose shape model, and The eye, nose and both ears of the examiner are brought into the same positional relationship as the relative positional relationship, and the eye / nose shape model, the second right ear shape model, and the second This is a method of manufacturing a spectacle frame that fits best to the subject by adjusting and processing the spectacle frame to fit the left ear shape model, so that the second right And the left ear shape model can be shared. From Rukoto, they may, if only one set Bok, the test of the second right and left ear portion shape model Since there is no need to manufacture for each user, not only the same effects as in the eyeglass frame manufacturing method described in claim 2 can be obtained, but also the processing time can be further reduced and material costs can be saved. Has advantages. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a flowchart of an eyeglass frame manufacturing method according to the first embodiment.

FIG. 2 is a conceptual diagram of a configuration of a three-dimensional face shape measuring device.

FIG. 3 is a perspective view of the subject's ear with the inspection plate body hung.

FIG. 4 is a front view of the subject's ear with the inspection plate hanged thereon.

FIG. 5 is a perspective view of an eyeglass frame.

FIG. 6 is an explanatory diagram of an inward bending angle when the vine of the spectacle frame is viewed from directly above.

FIG. 7 is an explanatory view of a downward bending angle when the vine of the spectacle frame is viewed from the side.

FIG. 8 is an explanatory diagram of an inward bending angle when viewing the vine of the spectacle frame from directly behind.

FIG. 9 is a diagram showing a tilt when the inspection plate body is viewed from the front.

FIG. 10 is a diagram showing a tilt when the inspection plate is viewed from the side. · FIG. 11 is a diagram showing a tilt when the inspection plate is viewed from above. FIG. 12 is a schematic front view of a six-axis manifold.

FIG. 13 is a schematic plan view of a six-axis manifold.

Fig. 14 is a schematic left side view of the 6 翱 Manipire overnight.

FIG. 15 is an explanatory diagram of the iris portion of the three-dimensional face shape data. Fig. 16 is a schematic front view showing the state where the 6-axis manipulator and the eye, nose, right ear, and left ear shape models are attached to the workbench.

FIG. 17 is a schematic plan view showing a state in which a six-axis manipulator fixed on a workbench, and a model having eye, nose, right ear, and left ear parts are attached.

FIG. 18 is an explanatory diagram of a case where an eyeglass frame is attached to an eye-nose part, a right ear part, and a left ear part shape model and adjusted.

FIG. 19 is a perspective view showing a state where the divided type three-dimensional face shape model according to the second embodiment is fixed to a fixed base.

FIG. 20 is an explanatory diagram of a case in which an eyeglass frame is attached to the segmented three-dimensional face shape model according to the second embodiment and is adjusted. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, the eyeglass frame manufacturing method according to the embodiment of the present invention comprises: 3D face model is generated by measuring the pattern of the face in three dimensions (S 1), and the workpiece is processed according to the processing control data to produce a three-dimensional shape. The eye and nose data of the processing control data generated based on the three-dimensional face shape data is input to the processing machine to produce an eye / nose shape model including the eyes and nose (S2). Then, the mounting portions of the two 6-axis manual purses each having a mounting portion capable of operating with six degrees of freedom in accordance with the operation control data have a shape along the shape of the ear hook portion of the inspection plate body. The second right ear shape model and the second left ear shape model previously processed Are attached, and the eye-nose part shape model is fixed between these. Next, the right and left ears of the operation control data generated based on the data on the shape of the back of the ear of the subject 2 obtained from the position and inclination of the inspection plate body in the three-dimensional face shape data Part data is input to each of the two 6-axis manual purifiers, and the mounting part is moved and inclined with respect to the eye-nose shape model, so that the eyes, nose and both sides of the subject 2 A state is established in which the same positional relationship as the relative positional relationship between the ears is established (S3). Finally, the eyeglass frame is adjusted to fit the eye-nose shape model, the second right-ear shape model, and the second left-ear shape model in this state (S4). The eyeglass frame that fits the subject 2 best is manufactured. The details will be described below.

First, the three-dimensional face shape measuring device 1 will be described. As the three-dimensional face shape measuring device 1, a device similar to the three-dimensional face shape measuring device disclosed in Japanese Patent Application Laid-Open No. HEI 5-117245 can be used. As shown in FIG. 2, the measuring device 1 includes a detection head 3, an image encoder 4, a scanner driver 5, a display device 6, a computer 7, and a keyboard 8.

The detection head 3 is provided with a CCD camera 9 for photographing the front of the face of the subject 2 at the center of the heart-shaped frame, and the laser slit light sources 10 and A carpano mirror 112 is provided for rotating and projecting the laser slit light to the front side of the face of the subject 2. The computer 7 controls the image encoder 4 and the car controller 13 of the scanner driver 5, and the laser controller 14 is controlled by a shape calculation program built in the computer 7. The laser slit light source 10 is controlled by a laser controller 14 and Carpano mirrors 1 and 2 are controlled by a carba controller 13. Now, when the subject 2 is irradiated with laser slit light from one of the laser slit light sources 10 via the calpanomirror 112, the distortion of the laser slit light caused by the unevenness of the right side of the face is detected by the CCD camera. 9, and the image obtained here is processed by the image encoder 4 and the computer 7, which are image synthesizing devices, to measure the three-dimensional face shape of the front side of the subject 2.

In this way, the force for obtaining the three-dimensional facial shape data of the front side of the subject 2 at this time, as shown in FIGS. 3 and 4, the force applied to both ears 15 of the subject 2 By applying the three-dimensional face shape measuring device 1 to the projection plate 16 and measuring the inclination angle and the like of the surface of the projection plate 16 at the same time, the two balls shown in FIG. 5 are obtained. The optimal shape of the eyeglass frame 22 consisting of the frame 17, the bridge 18, the nose pad 19, and the two temples 20, etc., specifically, as shown in FIGS. 6 to 8 In addition, the bending angles X1, X2, and X3 that best fit the subject 2 can be used for basic data, and the bending angles XI, X2, and X3 obtained in this manner are as described above. This is reflected in the shape of the back of the ear in the 3D facial shape model. As shown in FIG. 3, the inspection plate body 16 includes a rectangular inspection plate 23 having a white surface and an ear hook 24 fixed at one end to the inspection plate 23. It is a thing. It is possible to obtain almost the same state as when the ear hook 24 is hung on the ear 15 and the temple 20 of the eyeglass frame 22 is hung on the ear 15. When this is applied to both ears 15 of the subject 2, the surface of the inspection plate 23 has various inclinations depending on the shape of the back of the ear of the subject 2. That is, as shown in FIG. 9, the inclination of the inspection plate 23 when viewed from the front, as shown in FIG. 10, the inclination of the inspection plate 23 when viewed from the side, As shown in the figure, it is a three-dimensional inclination such as the inclination of the inspection plate 23 when viewed from above. these The various inclinations and positions are calculated and analyzed by the computer 7 in accordance with a pre-installed program based on the data obtained by measuring the distance from the CCD camera 9 at a number of positions obtained by dividing the surface of the inspection plate 23 into a grid. It is required by doing.

Based on the three-dimensional facial shape data of the front side of the subject 2 obtained as described above, based on the evening, a combination in which a predetermined conversion program is installed. Generates machining control data to control the operation. The generation of the processing control data is executed by the computer 7 of the three-dimensional facial shape measuring device 1, but may be executed by another computer or the like.

The three-dimensional shape model processing machine processes a workpiece based on processing control data to produce a three-dimensional shape object. The processing mode is not particularly limited, and examples thereof include a cutting process for cutting wax, plastic, and the like, and a process using an ultraviolet curing resin for irradiating a liquid workpiece with ultraviolet rays to cure the workpiece.

As shown in Fig. 12, the 6-axis manifold can move independently in the X, Υ, and Ζ axes directions and can rotate around these axes. Possible). This degree of freedom of movement 6 is realized by providing joints that are independent from each other for direct motion in the X, Υ, and Ζ axis directions and rotation about the X, Υ, and Ζ axes. Specifically, as shown in FIGS. 12 to 14, a fixed seat plate 32 fixed to a work table 43 described later and a fixed seat plate 32 It is slidably provided in the axial direction (in FIG. 12, perpendicular to the paper surface). 紙 The axial slide part 33 a and the Y-axis slide part 33 a in the X-axis direction (In Fig. 12, right and left direction) A slide portion 33 b and a Z-axis direction slide portion 33 c slidably provided in the X-axis direction slide portion 33 b in the Z-axis direction (in the vertical direction in FIG. 12). The Z-axis direction slide portion 33c is provided so as to be rotatable around the X-axis, and the X-axis rotation portion 34a is rotatable around the Z-axis. And a Z-axis rotating section 34b provided rotatably about the Y-axis on the Z-axis rotating section 34b. And, between the fixed seat plate 32 and the Y-axis direction slide part 33a, between the Y-axis direction slide part 33a and the X-axis direction slide part 33b, and the X-axis A linear motion guide such as a linear ball bearing guide 35 and a drive mechanism 36 for moving in each axis direction are provided between the directional slide portion 33b and the Z-axis direction slide portion 33c, respectively. Have been. Furthermore, a ball bearing is provided between the X-axis rotation part 34a and the Z-axis rotation part 34b and between the Z-axis rotation part 34b and the Y-axis rotation part 34c. And a rotation drive mechanism 37 for rotating around each axis.

The drive mechanism 36 includes, for example, an input terminal 36b to which operation control data is input via a cable 36a, a servo motor 36c operating according to the operation control data, and the servo motor. The male screw part 36 e that outputs the driving force of 36 c through the reduction gear box 36 d, and the X, Y, and Ζ axial direction slide parts 3 to which the male screw part 36 e is screwed. 3a, 33b, and 33c, and female screw portions 36f provided on the X, Y, and 方向 axial slide portions 33a, 33b, and 33c. It is to be moved in the axial direction. The rotation drive mechanism 37 includes, for example, an input terminal 37 b to which operation control data is input via a cable 37 a, a servomotor 37 c that operates according to the operation control data, and a servomotor 37. c output shaft 3 7 d and screw And the rotation driving force of the servomotor 37 c via the reduction gears and the like, the X, Y, and Ζ axis rotation parts 34 a, 34 b, By transmitting them to 34c, they are rotated around the respective axes.

Hereinafter, the procedure of the eyeglass frame manufacturing method of the present embodiment will be described. First, the three-dimensional face shape measuring device 1 generates a three-dimensional face shape image by performing three-dimensional pattern measurement on the face of the subject 2 with the inspection plate body 16 hung on both ears. When acquiring the three-dimensional face shape data, as shown in Fig. 15, the eye 2 of the subject 2 absorbs the laser beam without reflecting the eye 2a power. If it is not possible, the 3D facial shape data is predicted and calculated from the white eye 2b portion of the 3D facial shape data to the black eye 2a portion within the computer according to a predetermined program. The iris of 2a is obtained.

Next, processing control data for the three-dimensional shape model processing machine to manufacture the eye-nose part shape model is generated based on the three-dimensional face shape data. The generation of the processing control data is executed by an operation of the computer 7 in which a predetermined conversion program is installed, but may be executed by another computer.

Further, operation control data for operating the mounting portion 28 of the 6-axis manual pinion 29 is obtained from the three-dimensional face shape data, such as the position and inclination of the inspection plate 16. Generated based on the shape of the back of the ear of subject 2 The data on the shape of the back of the ear in this case is obtained based on the position and inclination of the inspection plate 16, and accordingly, the inspection plate placed on both ears of the subject 2 This corresponds to the position and inclination of the ear hook portion 24 of the body 16. Next, the eye and nose data of the processing control data is input to the three-dimensional shape model processing machine, and an eye and nose shape model including the eyes and nose is manufactured. Next, as shown in FIGS. 16 and 17, a seat plate 43a and an eye-nose-shaped model mounting plate 43b, which is a plate material provided at right angles to the seat plate 43a, are provided. The eye / nose shape model 40a is fixed to the surface of the eye / nose shape model mounting plate 43b of the work table 43 obtained. The work table 43 is provided with two 6-axis manipulators 29 (symmetrically shaped). The mounting portions 28 are opposed to each other, and these mounting portions 28 are provided. The second right ear shape model 40b and the second left ear portion, each of which is partially processed into a shape that matches the inner peripheral shape of the curve of the ear hook portion of the inspection plate 16 Shape models 40c are mounted respectively. Naturally, the 6-axis manual model on the right side of the eye-nose shape model 40a has a second right-ear shape model 40b on the right side thereof, and the 6-axis manual model on the left side has the same shape. 29, a second left ear shape model 40c is attached. The operation control data includes the positions of the two 6-axis manipulators 29 installed on the work table 43 and the eye-nose shape model mounting plate 43 b. It is generated in consideration of the relative position with respect to.

Next, the operation control data is input to the two 6-axis manual switches 29. Naturally, to the side where the second right ear shape model 40b is attached, the operation control data relating to the right ear is attached, and the second left ear shape model 40c is attached. The other person inputs the operation control data for the right ear. Then, according to the operation control data, the two mounting portions 28 move and tilt, and the second right ear shape model 4 Ob and the second left ear shape model 40 c force The eyes and nose With respect to the part shape model 40a, the same position as the relative positional relationship between the eyes, nose, and both ears of the subject 2 It is in a state of making a relationship.

Finally, the subject 2 adjusts the favorite eyeglass frame 22 selected in advance. As shown in FIG. 18, the spectacle frame 22 is worn on the eye / nose shape model 40a, the second right ear shape model 40b, and the second left ear shape model 40c. Check that the nose pad 19 and the vine 20 are fitted perfectly, and that the eyeball 42 and the eyeglass frame 22 are properly positioned. If not, adjust these nose pads 19 and 20. In this way, an eyeglass frame 22 fitted to the eye / nose shape model 40a, the second right ear shape model 40b, and the second left ear shape model 40c is manufactured. This makes it possible to provide the subject 2 with the ophthalmic frame 22 that fits perfectly.

When the nose pad 19 is to be adjusted, for example, the support member of the nose pad 19 is bent and adjusted. If wobbling is provided in advance for adjustment, the adhesive is used after the adjustment. Fix this using something like If the nose pad 19 is to be cut and processed based on the three-dimensional face shape data, the nose pad 1 is fitted from the beginning to the nose of the eye-nose shape model 40a. The trouble of adjusting 9 can be saved. On the other hand, when the above-mentioned vine 20 is adjusted, for example, it is bent by hand so as to conform to the shape of the binaural shape model 40b, 40c, or by a predetermined tool. adjust.

As a second embodiment, the three-dimensional face shape measuring device 1 described above generates three-dimensional face shape data by three-dimensionally measuring the pattern of the face of the subject 2, By inputting the processing control data generated based on the three-dimensional facial shape data into the three-dimensional shape model processing machine, the workpiece is processed, and the front side of the subject 2 is represented. Three dimensional There is also a method of manufacturing a spectacle frame that fits best to the subject 2 by manufacturing a facial shape model and adjusting the spectacle frame in the same manner as in the first embodiment.

Although the three-dimensional face shape model is an integral object, the parts required for fitting the above-mentioned eyeglass frame 22 are the eyes, the nose and the back of both ears of the three-dimensional face shape model. Therefore, in the second embodiment, instead of the three-dimensional face shape model, an eye / nose shape model 44 a including eyes and a nose of the three-dimensional face shape model, and a right ear part of the three-dimensional face shape model And a first left ear shape model 44c including the left ear portion of the three-dimensional face shape model. a, the right ear shape model 44b and the left ear shape model 44c form the same relative positional relationship between the eyes, nose, and both ears of the three-dimensional facial shape model. (Hereinafter, referred to as a divided three-dimensional face shape model 44) may be used.

The split type three-dimensional face shape model 44 is, for example, fixed on a fixed base 39 described later. As shown in FIG. 19, the fixing base 39 has a bottom plate 39a, a fixing portion 39b for eyes and nose connected to the bottom plate 39a at right angles to each other, and right and left ear portions. Fixing portions 39c, 39d are provided, and the eye-nose, right-ear, and left-ear shape models 44a, 44b, 44c are fixed by positioning pins 41, respectively. ing. These are fixed so as to have the same positional relationship as the relative positions of the eyes, the nose, and both ears of the three-dimensional face shape model of the front side of the subject 2 which is the above-described object. . Therefore, even when the divided three-dimensional face shape model fixed in this way is used, the eyeglass frame 22 is worn on the model as shown in FIG. By adjusting the eyeglass frame 22, the The eyeglass frames that fit the examiner most can be manufactured.

As described above, the manufactured divided three-dimensional face shape model 44 is a compact model having the necessary and sufficient parts of the eyes, nose, and both ears when manufacturing the eyeglass frame. When this is used, compared with the three-dimensional face shape model representing the entire front side of the face, there is an advantage that the processing time can be shortened, and also an advantage that the material can be saved. Industrial applicability

INDUSTRIAL APPLICABILITY The present invention is useful as a method for manufacturing a spectacle frame that fits in a state optimal for a customer's face using three-dimensional shape data of the face obtained by using a three-dimensional face shape measuring device.

Claims

The scope of the claims

1. Using a three-dimensional facial shape measuring device, the subject's face is measured three-dimensionally to generate a three-dimensional facial shape

The processing control data generated based on the 3D face shape data is input to a 3D shape model processing machine that manufactures a 3D shape object by processing the workpiece according to the processing control data. Manufacturing the model,

An eyeglass frame manufacturing method characterized by manufacturing an eyeglass frame that fits the subject most by adjusting and processing an eyeglass frame so as to fit the three-dimensional facial shape model.

2. The three-dimensional facial shape model includes: an eye-nose shape model including eyes and a nose of the three-dimensional facial shape model; a first right ear shape model including a right ear of the three-dimensional facial shape model; A first left ear shape model including a left ear portion of the three-dimensional face shape model, and an eye / nose shape model, a first right ear shape model, and a first left ear shape model. Is a divided three-dimensional facial shape model fixed in the same positional relationship as the relative positional relationship between the eyes, nose, and both ears of the three-dimensional facial shape model. 2. The method for manufacturing an eyeglass frame according to claim 1, wherein

3. Using a three-dimensional face shape measuring device, three-dimensional pattern measurement of the subject's face with both sides covered by a projection plate with a projection plate and ear hooks with one end fixed to it To generate 3D facial shape data,

The eye and nose data of the processing control data generated based on the three-dimensional face shape data is sent to a three-dimensional shape model processing machine that manufactures a three-dimensional shape object by processing a workpiece according to the processing control data. Input to produce eye / nose shape model including eyes and nose, According to the operation control data, the attachment parts of two 6-axis manual purses equipped with attachment parts operable with six degrees of freedom were processed into the shape along the ear hook shape of the inspection plate Attach the second right ear shape model and the second left ear shape model

The eye nose shape model is fixed between the second right ear shape model and the second left ear shape model,

The operation control data generated based on the data on the shape of the back of the subject's ear obtained from the position and the inclination of the inspection plate body in the three-dimensional facial shape data is used for the two six-axis manual operation. In the evening, the mounting portion is moved and tilted with respect to the eye-nose shape model, and the same positional relationship as the relative positional relationship between the subject's eyes, nose, and both ears is formed. State,

In this state, the eyeglass frame is adjusted and fitted to fit the eye-nose shape model, the second right-ear shape model, and the second left-ear shape model, so that the subject is best fitted. Frame manufacturing method characterized by manufacturing a spectacle frame to be manufactured.