JPH026424Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to an eyeglass frame information display device that displays eyeglass frame information.

<Prior art> The method for selecting eyeglass frames is that an eyeglass wearer first tries on sample eyeglass frames at an eyeglass store, and from these samples the eyeglass wearer selects a specific model based on design, material, purpose of use, etc. Once the frames have been selected, mechanical adjustments are made to match the shape of the eyeglass wearer's head before the lenses are laid out.

Eyeglass frames are devices that hold the lenses in place in front of the eyes in order for them to function perfectly, so they must accurately follow every movement of the head. be done. Therefore, if it were possible to accurately measure the positional relationship between the eyes, nose, and ears based on the shape of the eyeglass wearer's head, it would be possible to accurately measure the positional relationship between the eyes, nose, and ears of the eyeglass wearer's head. Fully adjustable. Furthermore, if the eyeglass frames are custom-made from the beginning based on the above-mentioned measurement data, the process of mechanical adjustment can be completely eliminated.

A method of obtaining such eyeglass frame information is to use stereophotometry to take a three-dimensional photograph of the face of an eyeglass wearer, and from that photograph obtain data for manufacturing eyeglass frames (human bioquadrature). Application of the method (SPIE VOL.166 (NATO) 1978) is known, and there is also a special method for manufacturing frames that match the shape of each eyeglass wearer's head based on the measurement data of each eyeglass wearer using this stereoscopic photograph. 1986
It is known from the publication No.-88218. The stereoscopic photographic device used to measure the human head includes a grid irradiation type or grid projection type moiré photographic device, a camera, and an image analysis computer.

Furthermore, there is a known method of measuring the width of the nose at the area where the nose pads come in contact with a caliper-like universal measuring device or a Martin-type rod-like measuring device.

<Problems to be solved by the invention> The conventional caliper-like universal biological measuring instrument used to grasp the shape of the human head is different from the Martin-type rod-shaped instrument, which is composed of a rod-shaped measuring part and a scale. It is not possible to specify the measurement part of a curved part such as a curved part, and there is a large variation in the measurement value depending on the person taking the measurement. Another drawback is that it is difficult to measure the relative positional relationship of the eyes, nose, and ears on the face of each eyeglass wearer, which is very important in the manufacture of eyeglasses.

Also, in measurement methods using stereoscopic photographs,
The configuration described above requires a complicated and expensive system, and it is extremely difficult to identify the measurement site on the face using a photograph.

In addition, glasses include lenses, temples, bridges,
It is assembled from various parts such as pads, lens frames, endpieces, etc., and the above parts are combined based on certain standard model data from the eyeglass manufacturer to supply glasses that are made up of several basic models of glasses. Therefore, customers check by wearing the glasses whether they will fit into the assembled eyeglass frames of several basic model sizes and make a selection by replacing the eyeglass frames.

However, since the basic model has been determined, it is not easy to replace only each part. That is, simply
If only a specific part is changed, the frame balance with other parts must also be considered, and the above measurement method requires that relative frame information between each part be obtained.
It was difficult.

The present invention was made to eliminate these problems and drawbacks, and the purpose of the present invention is to obtain measurement data of the facial shape of each eyeglass wearer necessary for the manufacture of eyeglasses using a method suitable for the manufacture of eyeglasses. An object of the present invention is to provide an eyeglass frame information display device that accurately measures and displays information on eyeglass frames.

<Means for solving the problem> It consists of a lens, a lens frame, a front part consisting of a pad part, a bridge part, and an endpiece part, and a part shape corresponding to the glasses, and a lens position information display part and a pad information display part. It is equipped with a front information display section consisting of a display section, a bridge information display section, and a front body information display section, and a temple display section consisting of an endpiece information display section and a temple body display section, and displays the height of the pupils, the width of the nose pads, and the nose pads. An eyeglass frame characterized by displaying eyeglass frame information such as height, nosepiece inclination angle, front width, front inclination angle, endpiece height, endpiece opening angle, temple length, and ear hook bending angle. The purpose is to provide information display devices.

<Function> The display device of the present invention is assembled from parts shaped like glasses, and the length and angle of the joint can be variably adjusted, so when worn and brought into contact, the display device can adjust the shape of each person's head. Frame information can be obtained by reading the degree of adjustment on the scale displayed at the joint site.

Further, this frame information displays data of each frame information centering on the pupil position of the individual.

<Example> Hereinafter, an example of the present invention will be described in detail.

FIG. 1 shows an eyeglass frame information display device 1 of this embodiment.
FIG.

The display device of this example basically has a shape similar to general glasses having lenses, bridges, and temples, and has the following information: nose pad width, nose pad height, nose pad inclination angle (Z direction), This is a display device that can change the front width, front inclination angle, endpiece height, endpiece opening angle, temple length, and ear hook bending angle (Z direction) and displays the information. Its configuration includes a lens position information display section (hereinafter referred to as the lens section) 2, a front information display section (hereinafter referred to as the front section) 3, and a temple information display section (hereinafter referred to as the temple section) 4.
The lens section 2 is for displaying interpupillary position information in the direction of the nose of the face, and the front section 3 has a pad display section 6 (hereinafter referred to as "pupillary display") for displaying the nose pad width, nose pad height, and nose pad inclination angle. (referred to as pad part), bridge display part 5
(hereinafter referred to as the bridge section), front body information display section 7 that displays the front width and front inclination angle.
(hereinafter referred to as the main body part), which consists of a temple part 4
These include an endpiece information display section 8 (hereinafter referred to as the endpiece section) that displays the height of the endpiece and the opening angle of the endpiece, and a temple body information 9 (hereinafter referred to as the temple body section) that displays the length of the temple and the bending angle of the ear hook. It consists of

Each of the display sections will be described in detail below.

Incidentally, as shown in FIG. 1, the display device 1 of this embodiment
Since it is symmetrical from the center of the front part, it will be explained in detail using the symmetrical indicator on one side.

The lens portion 2 has almost the same shape as the edged eggplant-shaped lens of eyeglasses, and has an optical axis height marking line 1 in the center of a transparent plate 10 made of acrylic plastic.
1 is written, which indicates the geometric center height of the lens by aligning the subject's pupil center position.
It can be a horizontal reference line. The transparent plate 11 is
Dig a groove all over the outer lens edge (periphery),
A well-known eyeglass frame lens fixing method is used in which a nylon thread is fitted into the groove and fixed to the lens frame, and the end face of the lens is bonded to the front blower (described later) 12 with a solder. As the front portion 3 changes vertically, the clear line 11 also moves vertically.

FIG. 2 shows a partially enlarged view of the front section 3. FIG.

The bridge portion 5, which corresponds to the bridge of eyeglasses, has blow bar rods 12, which correspond to eyeglass bulovers, connected to both ends thereof. A nose pad fixing rod 14 is fitted into a through hole 5a provided in the center of the bridge portion 5, and is locked by a set screw 13 from the outside of the bridge portion 5. On both sides of the through hole 5a, a horizontally long space is formed in the bridge portion 5.
The nose pads 17 are formed to penetrate in substantially the same direction as a, and a nose pad 17 is slidably inserted into each of them along the space (direction A). This nose pad rod 17 has its upper end connected to the fixing rod 14 with the set screw 1.
a pair of connecting rods 16a, which are connected to each other via 5;
The lower end of 16b is pivotally connected.

A set screw 13 is provided on the outer surface of this space 5b.
A scale of the distance in the horizontal direction (direction A) from the horizontal center of the display device 1 is engraved, and the nose width data is based on the position information of the nose pad 17 in the space 5b. I understand.

Further, at the lower end of the nose pad rod 17, a pad portion 6 corresponding to the nose pad of glasses is fixed by a set screw 19, and a reference line 18b is marked near the screw hole 18 for receiving the set screw 19 of this pad portion 6. A scale indicating the distance in the vertical direction using the reference point is engraved on the outer peripheral surface of the nose pad 17, and can display the height of the nose pad from the bridge rod 5c.

Also, the method of fixing the nose pad 17 is to use the setscrew 13.
The fixing rod 14 can be moved up and down depending on the degree of tightening. When the nose pad 17 is opened and closed to the left and right, the nose pad 17 and the connecting rod 16 are pinned and connected, and the connecting rod 16 is a connecting node for crank movement, so the left and right sides of the nose pad 17 are connected. The connecting rod 16 follows the opening and closing movements. Connection rod 16
Since it has a two-pair configuration, the left and right opening and closing movements of the two nose pads always open and close in parallel and evenly.

Measure the nose width position by opening and closing this, and set the set screw 1.
When 5 is fixed, the connecting rod 16 is prevented from moving from side to side, so that it is fixed.

After fixing this set screw 15, loosen the screw 13 of the fixing rod 14, move the blow bar 12 in the vertical direction (direction B), and determine a suitable position by aligning the lens marking line 11 with the eye point,
The nose pad 17 is fixed by measuring and tightening the screw 13.

Therefore, bridge information can be displayed.

Next, the pad portion will be explained. nose pad 17
The structure of the pad portion 6 at the lower end is shown in FIG. 3. The lower end of the nose pad 17 is joined to a pad tube 18 in the shape of a hollow tube, and the lower end of the nose pad 17 is a small-diameter fitting portion 17a. is formed. Padded pipe 1
Since the inner diameter of the pad tube 8 is almost the same as the outer diameter of the small diameter fitting portion 17a, it can be fitted and inserted into the pad tube 1.
8 can be rotated by a fitting part 17a. A screw hole 18a is formed on the outer peripheral surface of the upper part of the pad tube 18, and a reference line 18b is formed near the screw hole. The screw hole 18a is for inserting the set screw 19 and pressing the fitting part 17a to tighten and fix it. At the lower end of the butt 18, two slits 18c are formed in the same direction, and a through hole 18d is formed at right angles to the direction of the slits on the outer peripheral surface of the adjustment portion. The slit 18c is the pad abutment part 2
This is for inserting the connection plate 20a of No. 0, and the connection plate 20a has a through hole 20b formed therein.
A support shaft 21 whose outer peripheral surface is threaded can be inserted from the through hole 18a of the pad tube 18 into the through hole 20b of the connecting plate and screwed together with the taper screw 22.

Before screwing, the pad abutment part 20 is attached to the support shaft 21
The pad tube 18 is pivotally supported, and the slit 18 is
Since c forms a space in the longitudinal direction of the pad tube, the pad rest part 20 can be rotated in the direction in which the slit 18c is formed, so the position (angle) of the nose pad can be adjusted. Can be fixed. This screw 2
2, the tip 22a is tapered and internally threaded, so the slit position of the pad tube 18,
The pad pipe 18 and the pad abutment part 20 are connected to the support shaft 21 through the respective through holes 18 of the pad pipe and the pad abutment part.
d, 20d and fixed with a taper screw 22. Through hole 18 at the lower end of pad pipe 18
A reference line 18e is engraved near d.

The reference line 18b at the upper end of the pad tube 18 provides information on how far the pad tube 18 has been rotated relative to the nose pad 17.
By reading the scale 17b engraved on the outer peripheral surface of the lower end of the nose pad 17, information on the nose pad angle in the direction of twist of the nose pad can be obtained. Further, the nose pad angle information requires information on the twisting direction of the nose pad rod and the nose pad inclination direction of the pad portion.

Information on the twist direction can be obtained by rotating the pad tube 18 to adjust the preferred twist angle of the nose pad, and inserting the set screw 19 into the through hole 18a of the pad tube 18.
is inserted and fixed by pressing the nose pad insertion part 17a.

The pad contact part 20 is connected to the pad 20c and the connection plate 2.
The connection plate 20a is horizontal when it coincides with the reference line 18e engraved on the pad tube 18 (in the case of the position shown in FIG. 2), and this is defined as the reference line 20d (O position). A scale is engraved so that the state of deviation from this reference line 20d can be displayed, and information on the direction of nose pad inclination can be obtained. Next, the front body portion 7 will be explained with reference to FIGS. 4 and 5. In FIG. 5, the blow bar rod 1
The end portion 23 of 2 is curved in a hook shape, and the curved portion 2
3a consists of insertion parts 23b and 23c that form small diameter keys on the bridge side and endpiece side, and a scale indicating the distance from the center of the nose is engraved on the outer periphery of the small diameter part 23b on the bridge side. The width of the temple in the front body information (temple width) is determined by the insertion amount of the small diameter portion 23b (direction e in Figure 4).
can be displayed. Further, the fixing is done by inserting a set screw 1 into the through hole 12a formed in the blow bar 12.
2b, tighten the screw 12b, and press the fitting part.

The small diameter part 23c on the endpiece side is designed to be inserted entirely into the connecting pipe 24, and the lower end has a blind hole 23d with an internal thread, and the small diameter end face is inserted into the hole 23d with a washer 25 and a screw 26. It is designed to be fixed by pressing. Also, connection pipe 2
4, inside the small diameter portion 23 before fixing the screw.
c can be rotated (in the direction of Fig. 4), and a wide angle of the endpiece from the front to the temple, that is, endpiece information can be displayed.

A key 24a is formed on the outer peripheral surface of the connecting tube 24 to prevent rotation of the connecting tube 24, and a scale is engraved to indicate the connection position of the endpiece 8. Therefore, information on the height of the armrest can be obtained.

The endpiece part 8 corresponding to the endpiece of the glasses is the connecting tube 2
4. A through hole 8b with a keyway 8a formed in the insertion direction.
A support shaft 24 is fixed to the side surface of the support shaft 27, and a connecting hole 9a formed on the end surface of the temple main body 9 is inserted into the support shaft 27 to adjust the mounting angle of the balance (g in Fig. 4). Since the angle of inclination of the front with respect to the temple can be adjusted, the outer periphery of the support shaft 27 is threaded, and the temple is pressed and fixed with a set screw 28.

In addition, by moving the endpiece 8 up and down with the connecting tube 24 (in the direction shown in Figure 4), the height of the endpiece can be adjusted depending on the position of the individual's ear, and the endpiece information can be displayed. is fixed by screwing together a screw from a through hole 8c formed on the outer surface of the armouring part 8 and pressing the connecting tube 24.

Next, the temple section will be explained.

As shown in FIG. 6, the temple main body part 9 consists of an endpiece connecting part 29 corresponding to the temple of glasses, a central part 30, and an angle adjusting part 31 corresponding to the temple of the glasses. As shown above, one end is connected to the endpiece side through the through hole and the support shaft, and the other end is formed with a small diameter rod-shaped fitting part 29a, and the connecting part main body 29b and the fitting part 29a are connected to each other.
A reference line 29c is engraved near the interface between the two.

The central part 30 is tubular, and the connecting side of the endpiece connecting part 29 has an angle scale 30a and a through hole 30b formed on the circumferential surface, and the insertion position with the endpiece connecting part 29 is determined based on the reference line 29c. , the insertion angle (direction shown in FIG. 7) can be displayed, and the insertion part 29a is pressed and fixed by a set screw 32. On the other hand, the other end connected to the angle adjustment part 31 has a slit 30 on the outer peripheral surface.
c is formed, the insertion part 31a of the temple angle adjustment part 31 is inserted into the slit, the screw 3 is inserted from above this slit, and the insertion part 31a is pressed and fixed by tightening with the screw 33, This insertion part 31
Regardless of the insertion amount of the screw 33, the locking position of the screw 33 can be changed by sliding it. (Direction in FIG. 7) The temple angle adjustment part 31 is fitted into the central part, and the angle adjustment part 3 is connected to a small diameter insertion part 31a whose distance from the endpiece support shaft 27 is indicated on a scale on the outer circumferential surface.
1b, and the fitting part 31a can adjust the length of the temple by fitting into the central part 30 as described above, while the rear end of the angle adjusting part is arranged in the longitudinal direction of the connecting tube (see Fig. 4). (g direction) A split 34 is included, and through holes 35 and 36 are formed perpendicularly to this split 34.

This split 34 is for sandwiching the ear hook 37 in the sagittal plane, which has a through hole 37a at the tip, and the through hole 37a provided at the tip of the ear hook and the through hole in the front of the split. A support pin 38 is inserted into the split 35, and a screw 39 is secured through a through hole 36 at the rear end of the split 34, so that the ear hook 37 can be held.

Therefore, an angle display scale 35a is formed on the outer periphery of the through hole 35a, and a reference line 37b is engraved near the through hole 37a on the front surface of the ear hook 37, so that the ear hook 37 can be adjusted to the angle adjusting section. By reading the angle display scale 35a with respect to the reference line 37b at a fixed position with respect to 31, the bending angle of the ear hook part at the insertion position with the endpiece connecting part 29 (in the direction of FIG. 7) can be displayed. .

That is, the bending angle of the ear hook can be displayed using the combined data shown in FIG.

Next, how to use the eyeglass frame information display device of this embodiment will be explained. In this usage, there is a specific eyeglass frame in advance, and the length, angle, etc. of other parts are adjusted using the data of this frame part as fixed values, and the other parts are adjusted for that specific part. A method for creating and displaying frame information, a method for displaying frame information for an already completed eyeglass frame, or a method for creating and displaying frame information by having an individual wear this display device and adjusting each part. There is a way to do it.

For example, first, adjust the width of the front body by adjusting in the direction e in Figure 4, measure the distance from the center of the face (the center of the nose), and determine the suitable front width according to the examiner's face width. .

Next, adjust the width of the nose pad in the direction shown in Figure 2 and fix it, then adjust and fix the nose pad inclination angle in the direction shown in Figure 2, and then fix it in the direction shown in Figure 2. Match the examiner's pupil position with the lens optical axis line.

Next, adjust and fix the height of the endpiece in the direction of FIG. 4, and the opening angle of the endpiece in the direction shown in FIG.

Here, as the final front information, the front inclination angle is adjusted in the direction of FIG. In this case, the corneal vertex distance is a fixed value, so determine the distance from the optical axis height explicit line (on the back side of the lens) and the subject's corneal vertex, and then determine the angle to achieve that distance. .

Generally, this distance is preferably 12 mm.

Next, the length of the temple is adjusted in the k direction of FIG. 7, and the bending angle of the ear hook part is adjusted in the J and L directions of FIG. 7 to obtain temple information.
In addition, the display method of the scale in this embodiment is that the height of the nose pad and the height of the nose pad are the distance from the lens light line, the width of the nose pad is the distance from the center of the nose, and the angle of the nose pad is the second. As shown in the figure. The deviation angle with reference to the set screw 19 and the pad abutting part, the wide angle of the endpiece is the deviation angle with the key of the connecting pipe 24 shown in FIG. 5 as a reference, and the length of the temple is the deviation angle with reference to the endpiece shown in The distance from the support shaft 27 and the bending angle of the ear hook can be displayed as the deviation angle of the joint position of the temple center part 30 with respect to the reference line of the endpiece connection part and the rotation angle of the ear hook with respect to the horizontal reference line of the angle adjustment part. There is.

This display standard can be set arbitrarily, and can also be set arbitrarily so that the relative position with respect to each part can be known.

In addition, in this example, screws and pins were used to join the corner parts, but the joining method is not particularly limited, and the connection position of the connection part can be adjusted, and the shape of the parts can be adjusted to match the shape of the glasses. It is essential to be able to display the eyeglass shape as it is assembled in sequence.

<Effects of the invention> As described above, according to the frame information display device of the present invention, it is possible to transform the shape into a shape very similar to the eyeglass frame to be manufactured or adjusted, and to make measurements. Since the location is very accurate and the measurement does not require advanced techniques, there is little chance of variations in the measured values even by an inexperienced examiner. Furthermore, compared to conventional measurements using stereoscopic photographs, the measurement system is much cheaper, and analysis can be performed in a short time, so it has great economic value.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the frame information display device of the embodiment, FIGS. 2, 4, and 7 are partially enlarged views, and FIG.
Figures 5 and 6 are assembly drawings. 1... Frame information display device, 2... Lens position information display section, 3... Front information display section, 4...
Temple information display section, 5... Bridge information display section, 6... Pad information display section, 7... Front body information display section, 8... Endpiece information display section, 9...
Temple body information display section.

Claims (1)

[Scope of utility model registration request] It consists of a lens, a lens frame, a front part consisting of a pad part, a bridge part, and an endpiece part, and a temple part. It is composed of a part shape corresponding to the glasses, and includes a lens position information display part, a pad information display part, a bridge information display part, and a front body. It is equipped with a front information display section consisting of an information display section, an armrest information display section, and a temple display section consisting of a temple main body display section, and displays information such as pupil height, nose pad width, nose pad height, nose pad inclination angle, and front width. , a front inclination angle, endpiece height, endpiece opening angle, temple length, and ear hook bending angle.