JPH05172545A - Spectacle-frame manufacturing system - Google Patents

Abstract

PURPOSE:To obtain a spectacle-frame manufacturing system, which automati cally manufactures a quickly spectacle frame that exactly fits the individual person wearing the spectacles. CONSTITUTION:A spectacle-frame manufacturing system performs the following functions. The face of a person under test 2 is measured with a three- dimensional face-shape measuring device 1 in three dimensions, and the three- dimensional face-shape data are obtained. At the same time, the spectacle-frame data suitable for the taste of the person under test 2 are selected out of a spectacle-frame database 3 comprising various data of the spectacle frames and inputted. The input data and the three-dimensional face-shape data are synthesized. The image of the state, wherein the spectacle frame 2 which is selected for the person under test 2 is worn, is displayed on a display device 4. Furthermore, the spectacle-frame cutting and adjusting data (h) required for the most fitting state for the person under test 2 are obtained based on the three-dimensional face-shape data and the selected spectacle-frame data. The spectacle-frame material is cut and adjusted based on the spectacle cutting and adjusting data, and the spectacle frame is manufactured.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a series of spectacle frame manufacturing systems for manufacturing a spectacle frame in an optimum state using a computer.

[0002]

2. Description of the Related Art In the manufacture of conventional eyeglass frames, a large number of eyeglass frames having different sizes and colors are manufactured in advance based on statistical data, and retail stores store as many actual samples and catalogs as possible. Prepare them side by side, try on the clothes at the customer and select the size that fits best, or select the eyeglass frame of the size to fit based on the data of the size of the basic face shape, At present, only the fine adjustments of details are manually performed by the technicians in the store.

[0003]

However, according to the above-mentioned prior art, although a large number of eyeglass frames of different types and sizes are prepared based on statistical data, the face of each person is delicately left and right balanced. Different, the nose height, width, left and right distortion, etc., and also the position of the ears and the point of receiving the temple of the eyeglass frame, so there are few eyeglass frames that fit perfectly, and the details Even if the fine adjustment is performed, if the basic points are not matched, there is a problem that it is difficult to use comfortably for many years. Also, from the manufacturer's point of view, a large number of eyeglass frames must be kept in stock at all times so that orders from retailers can be promptly fulfilled, and storage space for them is also needed, but if the production prospect goes crazy. There is a problem that a large amount of inventory must be disposed of. Furthermore, there is a problem in that it takes a considerable number of days from the time a retailer places an order until the eyeglass frame as a product is available.

[0004]

The present invention has been made in view of the above circumstances, and the means for achieving the means are as follows.
The three-dimensional face shape measuring device measures the face of the subject three-dimensionally to obtain three-dimensional face shape data, and the subject's favorite eyeglasses are selected from the eyeglass frame database including various eyeglass frame data. The frame data is selected and input, and the input data and the three-dimensional face shape data are combined to display an image of the subject wearing the selected eyeglass frame on the display device. After obtaining the eyeglass frame cutting adjustment data necessary to best fit the subject from the face shape data and the selected eyeglass frame data, eyeglass frame materials are cut and adjusted based on the eyeglass frame cutting adjustment data to make eyeglasses. It is in the process of manufacturing the frame.

[0005]

According to the above means, the three-dimensional face shape data of the face of the subject is measured by the three-dimensional face shape measuring device,
Next, select and input your favorite spectacle frame data from the spectacle frame database, and cut and adjust the spectacle frame material based on the spectacle frame cutting adjustment data that is adjusted by combining these data on the display device to achieve the best fit. Since the spectacle frame is manufactured in this manner, it is possible to manufacture a spectacle frame that does not require any human hands and is automatically and perfectly fitted to each face of the subject.

[0006]

Embodiments of the eyeglass frame manufacturing system of the present invention will be described in detail below with reference to the drawings.

The spectacle frame manufacturing system of this embodiment is shown in FIG.
As shown in FIG. 2, the three-dimensional face shape measuring apparatus 1 obtains the three-dimensional face shape data of the subject 2, and then the eyeglass frame database 3 including various data of eyeglass frames is used for the inspection. The conditions of the eyeglass frame that the person 2 prefers are selected and input, the input data and the three-dimensional face shape data are combined and displayed on the display device 4, and the selected eyeglass frame data is displayed to the subject 2 to the subject 2. This is a system in which the necessary eyeglass frame cutting adjustment data for fitting is obtained and is cut online by the NC machine tool 6 input via the flexible disk 5 to obtain the most desirable eyeglass frame for the subject 2.

As shown in FIG. 2, the three-dimensional face shape measuring apparatus 1 includes a detecting head 7, an image encoder 8,
It is composed of a scanner driver 9, a display device 4, a computer 11 and a keyboard 12.

The detection head 7 is provided with a CCD camera 13 for photographing the front of the face of the subject 2 in the center of a doglegged frame, and a laser slit light source 14 and this laser slit light are provided at the two tips respectively. A carbano mirror 15 for projecting light while rotating the subject 2 to the front face of the subject 2 is provided.
The computer 11 controls the image encoder 8 and the color controller 16 of the scanner driver 9, and the laser controller 17 is controlled by a shape calculation program incorporated in the computer 11. The laser slit light source 14 is controlled by a laser controller 17, and a carbano mirror 15 is also provided.
Are controlled by the carba controller 16.

When the subject 2 is irradiated with the laser slit light from one of the laser slit light sources 14 through the carbano mirror 15, the CCD camera 13 photographs the distortion of the laser slit light caused by the irregularities on the front side of the face. The image obtained here is processed by the image encoder 8 and the computer 11 which are image synthesizing devices, and the subject 2
Measures the three-dimensional facial shape of the normal face. At this time,
The subject 2 is irradiated with laser slit light from the other laser slit light source 14 through the carbano mirror 15 and 2
By combining two pieces of shape data, measurement with few blind spots is performed.

In this way, the three-dimensional face shape data of the face 2 of the subject 2 is obtained. At this time, FIG. 3 and FIG.
As shown in FIG. 3, the inspection plate 19 is hung on both ears 18 of the subject 2, and the inclination angle of the surface of the inspection plate 19 is set to 3 at the same time.
By measuring with the three-dimensional face shape measuring apparatus 1, various processing data of the temple 23 of the eyeglass frame 24 including the two lens frames 20, the bridge 21, the nose pad 22 and the two temples 23 shown in FIG. 8 is obtained. Can be used for basic data for. As shown in FIG. 3, the inspection plate body 19 has a rectangular inspection plate 25 with a white surface, an ear hook portion 26 having one end fixed to the inspection plate 25, and another ear hook portion 26. It is composed of chain-like weights 27 having both ends fixed to the ends and the middle thereof. By hanging the chain-like weights 27 by hooking the ear hooks 26 on the ears 18, the temples 23 of the spectacle frame 24 are almost hung. You can get the same condition as when you hang it.

When this is put on both ears 18 of the subject 2, the surface of the inspection plate 25 has various inclinations depending on the shape of the back of the subject 2. That is, as shown in FIG.
The inclination of the inspection plate 25 when viewed from the front, the inclination of the inspection plate 25 when viewed from the side, as shown in FIG. 6, and the inspection plate 25 when viewed from the top, as shown in FIG. Is a three-dimensional inclination such as the inclination of. These inclinations and positions are calculated and analyzed by the computer 11 according to a pre-installed program based on data obtained by measuring distances to the CCD camera 13 at a large number of positions obtained by dividing the surface of the inspection plate 25 into a grid. Desired.

The spectacle frame 2 of the subject 2 to be examined is based on the data thus obtained and the calculation results.
No. 4, the adjustment condition of the two temples 23, that is, the bending angle X1 to the inside of the ear hook portion of the two temples 23 when the spectacle frame 24 is viewed from directly above, as shown in FIG. Bending angle X2 to the lower side of the ear hook portion of the two temples 23 when the eyeglass frame 24 is viewed from the side, and the ear hooks of the two temples 23 when the eyeglass frame 24 is viewed from the rear side as shown in FIG. The bending angle X3 toward the inside of the portion is calculated and determined based on a program installed in the computer 11 in advance. Based on the data of the three bending angles X1, X2, and X3 thus obtained, the temple 23 is bent by manual work or an automatic bending device.

At this time, since the shape of the ear hook portion 26 of the inspection plate 19 is constant, even if the chained weight 27 is hung down to approximate the state in which the eyeglass frame 24 is put on, the subject 2 will be examined. There are cases where it does not fit perfectly. In order to prevent this, a clay-like shape is deformable along the back surface of the ear 18 of the subject 2, and if possible, a flexible member that hardens is applied, and then the ear hook portion of the inspection plate 19 is applied. 26 is hung on the back side of the ear 18 and is measured by the three-dimensional face shape measuring apparatus 1 in the same manner as described above, and thereafter, the flexible member attached to the ear hook portion 26 in a cured or uncured state is detected. The shape of the back side surface of the ear 18 of the subject 2 is measured by measuring with the three-dimensional face shape measuring device 1 from the front direction alone together with the copyboard body 19, and these two measurement data are based on the program. By performing the arithmetic analysis, it is possible to obtain the temple 23 that fits the subject 2 perfectly.

As described above, when the three-dimensional face shape data of the face of the subject 2 is obtained, the data is stereoscopically displayed on the display device 4 and the center of each eye is observed while looking at the screen. To cause the computer 11 to store the position. In the computer 11, the lens frame 20 of the eyeglass frame 24 is located at a position 12 mm away from the center of the surface of the eye.
The fact that the lens 36 to be fixed inside is located is memorized as an indispensable requirement, and this principle is adhered to in the subsequent adjustment.

Next, from the spectacle frame database 3 containing the size, shape, color and other data of the spectacle frame 24,
Data of various conditions of the spectacle frame 24 which suits the subject 2 is selected and input to the computer 11 from the keyboard 12. Since the reference eyeglass frame 24 based on the selected input data and the three-dimensional face shape data are both input as data on the same coordinate, they are combined based on a program installed in the computer 11 in advance. Then, an image of the subject 2 wearing the spectacle frame 24 is displayed on the display device 4.

At this time, as shown in FIG. 12, the spectacle frame 2
The distance line 28 is displayed around the spectacle frame 24 as the vertical distance from the peripheral edge of the spectacle frame 24, which is the distance between the inner surface of 4 and the face. Then, for example, when the distance between the inner surface of the spectacle frame 24 and the upper part of the eyes is small, the image of the spectacle frame 24 is slightly tilted downward by operating the keyboard 12.
Alternatively, when the distance between the left lens frame 20 and the face is small, the image of the eyeglass frame 24 is slightly tilted to the right, or when the eyeglass frame 24 is generally close to the face, it is moved away from the face. The spectacle frame 24 is moved in the three-dimensional direction on the screen to display the optimum fitting state on the screen.

In addition to such movement of the three-dimensional spectacle frame 24, the shape of the spectacle frame 20 of the spectacle frame 24 may be modified, or the interval between the two spectacle frames 20 may be increased or decreased. The selected eyeglass frame that serves as the reference is further adjusted on the screen so that the eyeglass frame becomes one that suits one's taste.

In this way, when the spectacle frame 24 that fits the subject 2 and matches the desired design, color, etc. is determined on the screen, the three-dimensional face of the subject 2 previously measured is determined. Together with the shape data, the cutting adjustment data of the nose pad 22 is calculated so as to satisfy all the conditions. The standard at this time is set on the program so that the center of the nose pad 22 is located at a point 5 mm below the vertical bisector of the line connecting the centers of the two eyes to a point 8 mm on both sides. ..

As described above, the eyeglass frame cutting adjustment data including the adjusted cutting adjustment data of the nose pad 22 is stored in the storage medium such as the flexible disk 5 or sent to the NC machine tool 6 online. In this NC machine tool 6, an eyeglass frame material 29 made of a synthetic resin plate as shown in FIG. 13 is attached to a base 30 as shown in FIGS. It is cut by a cutting tool 32 that moves three-dimensionally.

In this embodiment, the spectacle frame material 29 uses a plate member 33 which is curved in the same shape as the intended spectacle frame 24, and a long member 34 is attached to a considerable portion of the nose pad 22. Although the material is saved by using the cutting tool, instead of this, a thick rectangular parallelepiped synthetic resin plate may be used for cutting with the cutting tool 32.

Then, the temples 23 manufactured by the above-described method are attached to both sides of the lens frame 20 of the thus-formed eyeglass frame 24 through hinges 35 as shown in FIG.
Further, the lens 36 preselected and cut into a predetermined shape is fitted into the lens frame 20 and delivered to the subject 2 as a customer.

When the spectacle frame 24 and the temple 23 are made of metal, it is difficult to cut them with the cutting tool 32 of the NC machine tool 6, so only the nose pad 22 is cut and the spectacle frame 24 is cut. Be fixed with screws or adhesive. In this case, the spectacle frame 24 and the temple 23 are previously prepared.
Data is input to the computer, and the height and shape of the nose pad 22 to be fitted are calculated based on these data and the three-dimensional face shape data of the subject previously obtained, and NC
It is cut by the machine tool 6. This method is applicable not only when the spectacle frame 24 is made of metal but also when it is made of synthetic resin.

[0024]

As is apparent from the above description, according to the present invention, three-dimensional facial shape measuring data is obtained by the three-dimensional facial shape measuring device for each individual facial shape of the subject,
Next, select and input the most favorite spectacle frame data from the spectacle frame database, synthesize this data on the display device, and based on the spectacle frame cutting adjustment data adjusted to the best fit, select the spectacle frame material. Since it is manufactured by cutting and adjusting, it is possible to obtain a spectacle frame that best fits the facial shape of each individual subject, and can be comfortably used for many years.

Further, according to this system, the spectacle frame material is cut and manufactured for each order from the customer, so that a large amount of inventory is not required and the storage space can be effectively used for other purposes.

Furthermore, the measurement by the three-dimensional face shape measuring device can be performed in a short time, and the desired spectacle frame data can be selected from the database immediately by operating the keyboard. Since it takes almost no time to adjust the image of the person and the spectacle frame, there is an advantage that the spectacle frame can be immediately manufactured on the spot if a device capable of cutting and adjusting such as an NC machine tool is provided.

Further, a retail store is provided with a three-dimensional face shape measuring device, a spectacle frame database and a computer, and the spectacle frame cutting adjustment data calculated and analyzed by these are transferred online or on a flexible disk to perform NC machining. If this is received at a factory that cuts eyeglass frame materials with a machine or the like, an expensive machine such as an NC machine tool can be effectively used.

[Brief description of drawings]

FIG. 1 is a flowchart of a system according to an embodiment of the present invention.

FIG. 2 is a schematic view of the device.

FIG. 3 is a perspective view in which an inspection plate body is hung on an ear of a subject.

FIG. 4 is a front view in which an inspection plate body is hung on the subject's ear.

FIG. 5 is a diagram showing a tilt when the inspection plate body is viewed from the front.

FIG. 6 is a view showing a tilt when the inspection plate body is viewed from the side.

FIG. 7 is a view showing a tilt when the inspection plate body is viewed from above.

FIG. 8 is a perspective view of a spectacle frame.

FIG. 9 is an explanatory diagram of an inward bending angle when the temple of the spectacle frame is viewed from directly above.

FIG. 10 is an explanatory diagram of a downward bending angle when the temple of the spectacle frame is viewed from the side.

FIG. 11 is an explanatory diagram of an inward bending angle when the temple of the spectacle frame is viewed from directly behind.

FIG. 12 is an image in which the subject and the spectacle frame are combined on the screen of the display device.

FIG. 13 is a perspective view of an eyeglass frame material.

FIG. 14 is an explanatory view of a main part of an NC machine tool.

15 is a cross-sectional explanatory view of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 3 dimensional face shape measuring device 2 subject 3 eyeglass frame database 4 display device 24 eyeglass frame 29 eyeglass frame material

Claims (1)

[Claims] 1. A three-dimensional face shape measuring device three-dimensionally measures the face of a subject to obtain three-dimensional face shape data, and the subject is examined from a spectacle frame database composed of various spectacle frame data. Select and input the eyeglass frame data of the person's liking, synthesize the input data and the three-dimensional face shape data, and display an image of the state in which the subject is wearing the selected eyeglass frame on the display device, Further, after obtaining the eyeglass frame cutting adjustment data necessary to best fit the subject from the three-dimensional face shape data and the selected eyeglass frame data, the eyeglass frame material is selected based on the eyeglass frame cutting adjustment data. A spectacle frame manufacturing system, characterized in that a spectacle frame is manufactured by cutting and adjusting.