JPH0722244Y2 - Eyeglass information measuring tool - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an eyeglass information measuring tool for measuring the interpupillary distance and eyeglass wearing information.

(Prior Art) Measurement of the interpupillary distance (hereinafter referred to as PD) of a wearer is an important task in adjusting eyeglasses.

This is necessary for determining the distance between the optical centers of the spectacle lenses and has a great influence on the feeling of wearing.

As a PD measuring device, a pupil distance measuring device generally called a Pupyrometer is known.

In general, this device creates a far viewpoint and a near viewpoint optically in the device and allows the examinee to peep, while the examiner views the pupil of the examinee from an optically opposing observation port. Observe,
The interpupillary distance is measured by a built-in scale for simultaneous observation.

On the other hand, as a simpler PD measurement, a simple measure (including a ruler) and a handheld small ruler are known.

In the measurement of this measure, the measure is installed horizontally on the eyelid of the subject, and the subject is read into the distance or near to read the position of the center of the pupil.

(Problems to be solved by the invention) However, the above-mentioned Pupyrometer is higher in cost than the measure, while the measurement by the above-mentioned measure holds the scale horizontally in front of the subject's eye, A skilled technique is required to read the scale quickly while not blocking the line of sight of the subject, and there is a problem that the measurement technique is difficult in view of structural simplicity.
Further, since the measure is generally read on a linear scale part, the distance between the left eye and the right eye is easy to read, but there is a drawback that it is difficult to measure the distance between the left and right eyes from the nasal ridge. , The human face is not required to be symmetrical, and it is necessary to obtain the pupil center distances of the left and right eyes from the center of the face (generally the nasal ridge is used) as accurate measurement data. In some cases, there was the problem that accuracy was impaired.

The present invention has been made in order to solve the above-mentioned problems, and a first object thereof is to easily hold a measuring tool when measuring a PD and to reduce the burden on the measurer. In addition, it is possible to easily measure PD of the left and right eyes from the ridge of the nasal bone, to provide a spectacle information measuring tool that is easy to measure and does not require skill in measurement, and a second object is to
An object of the present invention is to provide an eyeglass information measuring tool having a function of quantitatively and simply measuring the wearing state of eyeglasses (relationship between the pupil and viewpoint and the eyeglass frame and eyeglass lens) in addition to the above interpupillary distance measuring function.

(Means for Solving the Problems) The present invention has been made to achieve such an object. The present invention is a plate-shaped body having a rectangular basic shape, and a measurer holds it by hand near the end thereof. An eyeglass information measuring tool having a gripping portion for performing a linear ruler on the upper long side of the rectangle of the plate, and the person to be measured on the lower long side of the rectangle of the plate. A notch having a size that accommodates part or all of the nose of the face is placed in the center of the plate in front of the eye of the person to be suspected, with the measuring tool being substantially parallel. When the cutout portion is housed in the nose, a transparent window disposed at a position corresponding to at least one pupil position of the right and left eyes of the subject is formed, and upper and lower frames of the transparent window are formed. A first target portion having a target portion indicating a distance from the center of the cutout portion in the vicinity of at least one of the portions. A measuring member,
A second measuring member having a linear ruler portion rotatably supported in a 90 degree direction with respect to the linear ruler portion of the first measuring member via a connecting member, in the gripping portion of the plate-like body; An eyeglass information measuring tool characterized by being provided.

(Operation) In the ruler portion of the first measuring member of the eyeglass information measuring instrument of the present invention, a notch having a size corresponding to a part or the whole of the nose of the human face is formed.

Therefore, this measuring tool can easily hold the approach / separation to the front of the subject's eye, and can determine the measurement position closer to the eye. It is held in front of the subject's eye with the part exposed.

Furthermore, at least one see-through window is formed in this measuring tool at a position corresponding to the left and right pupil positions which are arranged when the cutout portion is aligned with the nose position.

Therefore, when the measuring tool is held in front of the eyes with the nose exposed, the examiner can recognize the pupil position of the subject from the see-through window, and the PD value of each of the left and right eyes can be read by reading the scale of the ruler. I can read it.

The linear ruler portion of the second measuring member is rotatably supported in the direction perpendicular to the linear ruler portion of the first measuring member via a coupling member.

Therefore, the vertical measurement can be performed without changing the horizontal holding direction of the first measurement member, the height of the pupils of the left and right eyes, the relationship between the distance center and the near center of the multifocal lens, and the like.
The height data of eyeglass information can be detected.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a plan view of an eyeglass information measuring tool 1 (hereinafter referred to as a measuring tool) of this embodiment.

The measuring tool 1 has a first measuring section 2 for measuring a PD, which has two outer surface of the measuring member 2a, 2b integrally formed on the front and back, and a measuring direction of the first measuring section 2. A second measuring member 3 capable of measuring a distance in the vertical direction with respect to the first measuring member 2a, 2b and the second measuring member 3 forming the second measuring portion 3 , Two cap-shaped coupling members 4
The second measuring member 3a is clamped and joined from both outer surfaces via a and 4b so that the second measuring member 3a has a maximum opening angle of 90 ° in the A direction (see FIG. 1) about the joint 4 as the center of rotation. It is configured.

In the first measurement unit 2 for measuring PD, a rectangular first notch 6 is formed on the first long side 5 at the upper left end of FIG. 1, and the notch 6 serves as a starting point for the long side 5. A scale portion 7 is provided on the upper end surface, and the notch 6 can be brought into contact with an object to be measured so as to be a reference point for measurement.

Furthermore, the other long side 8 facing the scale portion 7 has a second notch 9 having a corrugated shape corresponding to the nose shape of the human face at substantially the center thereof. A curved grip portion 10 is formed near the right end of the.

The second notch 9 is provided between the two long sides 5 and 8.
Hollow see-through windows 11 are formed on the left and right sides, respectively, and a scale display 12 showing the distance from the center point 9a of the second cutout is provided on the upper and lower sides of the see-through window 11, respectively. , 13 are engraved.

In particular, the configurations of the above-described second cutout portion 9 and the transparent window 11 are a part of the features of the present invention, and the center 9a of the second cutout portion is aligned with the ridge line of the nasal bone so that it can be seen through the transparent window 11. By confirming the center position of the pupil of the eye and reading the scale displays 12 and 13 formed on the upper and lower sides of the see-through window 11, the distances of the left and right eyes from the ridge of the nasal bone can be known.

Next, the second measuring unit 3 is in the measurement state using the first measuring unit 2 (the state in which the measuring tool 1 is held in parallel) and the measurement in the direction perpendicular to the first measuring direction. It will be possible to explain the configuration from the parts diagram of FIG.
The measuring part 3 is made of a transparent plastic material, is composed of a linear scale member 14 and a hollow ring member 15, and is integrally molded by injection molding.

Furthermore, on the longest side of the transparent scale member 14,
A scale display portion 16 for displaying the distance is formed, and through this member 14, the scale can be read while comparing with the background behind.

Further, the step portion 16 is provided at the boundary between the scale display portion 16 and the ring member 15.
a, and by contacting the end surface 23 of the frame 29 formed on the back surface of the first measuring member 2a described below under predetermined conditions, the rotation of the second measuring unit 3 exceeding 90 ° is controlled. There is.

Next, the components of the measuring tool 1 and the assembly of the components will be described. For the assembly of the measuring tool 11, the back surfaces of the two coupling members 4a and 4b described above are opposed to each other, and
The measurement member 3 of 2 is sandwiched between the two first measurement members 2a and 2b, and then the coupling members 4a and ab are inserted from the outer surface sides of the two first measurement members 2a and 2b, respectively. An adhesive is applied to a part of the abutting portion 2a of the coupling members 4a, 4b to join them.

Therefore, the connecting members 4a, 4b for connecting the above-mentioned components will be described with reference to FIGS. 3 (a), (b), (c). The connecting members 4a, 4b have a circular cap shape. ,
Front side 17 (part that appears when the scale is assembled)
Has a recess in the central portion 18 and has a curved surface so that it can be easily gripped by hand. On the other hand, on the back surface side 19 (see FIGS. 3B and 3C), a groove having two steps is formed. The first ring groove 19a is a contact groove for contacting the first measuring member 2a, and the second ring groove 19a.
b is used as a groove for accommodating the protruding adhesive.

A ring band 20 is formed outside the second ring groove 19b, and the ring band 20 is a ring portion of the second measuring member 3.
It is for abutting against 15b, and it is not adhered, but the second measuring member 3 is rotatably held while being held by the ring bands 20 of the two coupling members 4a, 4b.

Further, the inner side 20a of the second ring groove 19b has two coupling members.
Reference numerals 4a and 4b denote surfaces to which an adhesive is applied at portions where they abut each other when assembling the main measuring tool 1, and two bonding members are bonded to form one bonding member 4.

Next, the first measuring members 2a and 2b that form the first measuring unit 2 will be described.

As described in FIG. 1, the outer surface side of the first measuring section is
Both sides have the same structure. Therefore, the structure on the front surface side is the same for both the measurement members 2a and 2b, and the description of the measurement site has already been described above, and will not be repeated here.

4 (a), (b), and (c) are component drawings of the measuring member 2a. In FIG. 4 (a), the right end of the grip portion 10 has a circular hollow portion 21, and the outer periphery thereof has a stepped shape, and a contact ring band 22 with which the coupling member 4 a abuts and is sandwiched. Has been formed.

In addition, as shown in FIGS. 4 (b) and 4 (c), the rear surface side of the grip portion 10 has a first long side portion 24 from a starting point 23 of the circular portion.
A frame 2 having a width of about 2 mm extending from the short side portion 25, the second long side portion 26, the second cutout portion 27, the lower surface 28 of the transparent window 11 and the transparent window 11.
9 is formed. (It has a stepped shape as shown in the sectional view taken along line X ₂ -X _{2 in} FIG. 4B.) The height H of the frame 29 is the same as the thickness of the second measuring member 3. The second measuring member 3 can be accommodated in the frame 29.

Further, the surface of the frame 29 serves as an adhesive portion which is applied with an adhesive when the measuring tool 1 is assembled and is bonded to the other measuring member 2b.

Further, in the middle of the transparent window 11a and the same grip portion 10, the frame 2
A small circular stopper part 30 with the same height as 9 is formed,
This is for preventing the second measuring member 3 from further rotating when it is rotated in the direction of the first long side portion 24, or for positioning at this point 30. FIG. 5 illustrates the rotational movement of the second measuring member 3 and the configuration of the first measuring member 2a. That is, in FIG. 5, the second measuring member 3
When it is closed, it comes into contact with the sputter member 30 (state A), and when it is opened for measurement, the stepped portion 16a of the ring member 15 of the second measuring member 3 has a frame on the gripping portion 10 side. The second measuring member 3 can be measured in a state in which it is positioned at 90 ° with respect to the horizontal direction because it is in contact with and fixed to the take-off face portion 23 (state B).

FIGS. 6 (a), (b), and (c) show a part drawing of the first measuring member 2b, which is a flat plate, and the rear surface side has only the structure excluding the scale display. Is different from the surface structure, and is bonded to the framing surface of the member 2a as a first member.
The first measuring unit 2 is configured by being bonded to 2a.

Although the configuration of the measuring tool 1 of the present embodiment has been described above, in the spectacle information measuring tool 1 of the present invention, the shape of the second cutout portion is a corrugated human face as shown in the present embodiment. The shape corresponding to the nose shape is preferable, but a semicircular shape, a triangular shape, etc. are particularly preferable as long as the object of the present invention is achieved in front of the face and the center position of the human face including the nasal ridge can be clearly indicated. The shape is not limited.

In addition, the size may be a size with respect to the nose and the whole or a part of the nose may be exposed.

Further, the transparent window is for detecting the pupil and the hollow shape is simple in manufacturing, but it may be formed of a transparent body or the like, and the formation position, shape, and size can detect the pupil of the human face. Allowed in range.

Further, the configuration of the measuring tool of the present invention may be provided with an adjusting function and a measuring function of other glasses, and the shape of the gripping part or the whole ruler can be changed.

Further, as the connecting means for connecting the ruler portion and the second ruler portion of the present invention, known mechanical means can be used, and preferably,
It is preferable to add a rotating means.

Next, a method of using the measuring tool 1 will be described.

FIG. 7 is a front view showing the PD measurement state of the left and right eyes.

In a state where the second measuring member 3 is folded, the measuring tool 1 is made horizontal, the measuring tool 1 is held in front of the eye, and the second cutout portion 9 is formed along the shape of the nose and on the face. The center 9a of the second cutout 9 is made to coincide with the nasal ridge line which is the center of the face by moving and approaching in parallel. Normally, in this state, the see-through window
The left and right pupil positions can be visually confirmed from 11, and the measuring tool 1
The holding operation of is ended. Next, while confirming the center position of the pupil, the PD values of the left and right eyes are read on the scale above or below the transparent window 11.

When you want to know the binocular PD, it is convenient to use the scale on the long side 5 at the top.

FIG. 8 shows a part of a usage example of the measuring member 3 of FIG.

In this example, the distance from the pupil 101 to the lower end of the lens frame 102 is measured with the spectacle frame 100 attached.

When preparing multifocal spectacles, it is said that the wearer needs to recognize the visual field area regarding the usage. That is, when wearing the spectacle frame arbitrarily selected by the user, it is necessary to numerically grasp whether or not the near vision desired by the user can be sufficiently secured within the lens frame. Due to the ability of the eye to rotate, a lens frame that is too small may lack the near vision range and may be difficult to use with a multifocal lens.
Therefore, the area in near vision is measured, and in this example of use, it is checked whether the selected spectacle frame is appropriate.

The second measuring member 3 can also be used to measure the difference in the height of the pupils of the left and right eyes, and in particular, the transparent member is used to obstruct the visual field of the subject. No, it is creating a measurement state.

(Effect of the device) According to the eyeglass information measuring tool of the present invention, the examiner can perform measurement at a position closer to the front of the subject's eye, and PD for each of the left and right eyes can be accurately measured without requiring skilled measurement techniques. Can be measured. Moreover, since the measuring mechanism is also simple, a large measuring device is not required, and the cost burden is reduced.

In addition to simply measuring PD in the horizontal direction, you can easily measure the distance information in the vertical direction with one hand while maintaining the horizontal state, so you can operate accurately and easily without worrying about the inclination of the scale (ruler). This is convenient for fitting adjustment of multifocal spectacles and wearing check.

Furthermore, since this measuring tool is convenient to carry, it can be measured anywhere.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of an eyeglass information measuring tool 1 of the present invention. FIG. 2 is a front view of the second measuring member 3 in the above embodiment. 3 (a) to (c) are partially enlarged views of the connecting members 4a, 4b in the above embodiment, and FIG. 3 (a) is a plan view.
3 (b) is a bottom view, and FIG. 3 (c) is FIG. 3 (b).
X ₁ -X line sectional view of. 4 (a) to (c) are partially enlarged views of the first measuring member 2a in the above embodiment, and FIG. 4 (a) is a plan view.
FIG. 4 (b) is a sectional view taken along line X ₁ -X ₁ of FIG. 4 (a), and FIG. 4 (c) is a bottom view. FIG. 5 is a view for explaining the rotating state of the second measuring member 3 when it is housed in the first measuring member 2a. 6 (a) to 6 (c) are partially enlarged views of the eleventh measuring member 2b in the above embodiment, FIG. 6 (a) is a front view, and FIG. 6 (b) is X ₃ -X ₃ FIG. 6C is a bottom view taken along the line. FIG. 7 and FIG. 8 are views showing a usage state of the eyeglass information measuring instrument 1 of the embodiment. 1 ... Eyeglass information measuring tool, 2 ... 1st measuring part 2a, 2b ...... 1st measuring member 3 ... 2nd measuring member, 4a, 4b ...... coupling member 6 ... 1st notch part , 7 ... Scale display part 5, 8 ... Long side, 9 ... Second cutout part 10 ... Gripping part, 11 ... Transparent window 9a ... Cutout center 12,13 ... Scale display

Claims (1)

[Scope of utility model registration request] 1. A spectacle information measuring tool having a rectangular plate-shaped body having a basic shape, and a gripping part for holding by a measurer by a hand in the vicinity of an end thereof, the rectangular upper part of the plate-shaped body. A linear ruler part on the long side of the plate-like body, and a notch part having a size for accommodating a part or all of the nose part of the human face of the subject on the long side of the lower part of the rectangle of the plate-like body, In the center of the plate-like body, in front of the human face of the subject, with the measuring tool in a substantially parallel state, when the notch is accommodated in the nose, the left and right eyes of the subject are measured. A perspective window disposed at a position corresponding to at least one pupil position is formed, and a distance from the center of the cutout portion is shown in the vicinity of at least one of the upper and lower frame portions of the perspective window. A first measuring member having an optotype portion, and a gripping portion of the plate-shaped member are directly connected to the first measuring member via a coupling member. An eyeglass information measuring tool, comprising: a second measuring member having a linear ruler portion rotatably supported in a direction of 90 degrees with respect to the line ruler portion;