JPH0928670A - Optometric aid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the structure and improve the accuracy of optometry for an optometric aid that is to be installed on the spectacles that the examinee wears routinely. SOLUTION: For the installation of an optometric aid 1, a knob 16 is pushed for opening support pieces 15a, 15b of hanger 15. The aid 1 is next placed on the examinee's spectacles 20 from above, and the lenses 21, 22 of the spectacles 20 are held between the support pieces 15a and 8h, 15b and 8i.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optometry aid having an optometry lens, and more particularly to an optometry aid for confirming a wearing state by superimposing it on a lens of spectacles being worn.

[0002]

2. Description of the Related Art Conventionally, as eyeglasses for optometry for optometry, there is one having a lens holder on the front surface of a frame as disclosed in Japanese Utility Model Publication No. 5-46725. In this spectacles for optometry, a frame is placed between both ears like normal spectacles, and an optometry lens is inserted into a lens holder to perform optometry. A plurality of optometry lenses can be inserted into the lens holder. For example, by combining a progressive multifocal lens and a spherical lens, various tests such as a bifocal spectacle lens test can be performed. . Further, in this optometry eyeglass, the lens holder is slidable to the left and right, and the interpupillary distance (P
D) can be adjusted.

[0003]

By the way, in the optometry for selecting a progressive multifocal lens or the like, it is necessary to know the difference between the case where the progressive multifocal lens is worn and the case where it is not worn. In this case, it is ideal to compare with the glasses that the eye examiner normally wears. In order to achieve this, it is possible to wear the entire frame from the top of the spectacles that are normally worn. However, in the conventional eyeglasses for eye examination, since the vertical position of the eyeglass lens with respect to the frame is fixed, it is difficult to vertically align the eyeglass lens of the eye examinee with the eyeglass lens. In addition, since the two glasses are worn over each other, the wearing feeling is poor and the appearance may be different from the actual appearance. Therefore, it is difficult to know the difference between the wearing and non-wearing of the progressive multifocal lens.

Further, in the conventional optometry glasses, the size of the optometry lens is standardized because the optometry lens is inserted into the lens holder, and an optometry lens of a size suitable for the spectacles of the examinee is used. It was difficult to use. This also makes it difficult to know the difference between when the progressive power multifocal lens is worn and when it is not worn.

Further, since the structure is complicated, the cost is high. The present invention has been made in view of such a point, and while having a simple structure, it is easier to understand the difference in the appearance between the eyeglasses and the optometry lens that the examinee normally wears. The object is to provide an optometry auxiliary tool that can be used.

[0006]

In order to solve the above problems, the present invention provides an assisting device for an optometry having an optometry lens, wherein a bridge for supporting the optometry lens and the optometry lens in the left-right direction relative to the bridge. And a hanger portion that allows the bridge to be attached to and detached from the eyeglasses by sandwiching the lens of the eyeglasses to be inspected with a predetermined vertical width from above. An optometry aid is provided.

[0007]

With the hanger portion, the lens of the spectacles worn by the eye to be inspected is clamped from above, so that the bridge of the optometry aid is attached to the eyeglasses of the eye to be inspected. At this time, the vertical position of the center of the optometry lens can be finely adjusted by adjusting the position of the bridge in the vertical direction within a predetermined vertical width range. Further, if the slide mechanism unit slides the optometry lens in the left-right direction with respect to the bridge, the interpupillary distance of the optometry lens can be finely adjusted.

[0008]

An embodiment of the present invention will be described below with reference to the drawings. 2 is a front view showing the outer appearance of the optometry aid of the present embodiment, FIG. 3 is a perspective view showing the appearance of the optometry aid as seen from the rear side, and FIG. 4 is an exploded perspective view showing the attachment mechanism of the optometry lens. Is. The optometry aid 1 mainly includes an optometry lens 2 for the right eye, an optometry lens 3 for the left eye, a bridge 4, a hanger portion 5, and slide mechanism portions 6 and 7. These functions are configured based on the base member 8.

The optometry lenses 2 and 3 are, for example, plastic lenses. The optometry lenses 2 and 3 are lenses for selecting, for example, a bifocal lens or a progressive multifocal lens,
The position of the focal point, the lens power, and the like are taken into consideration so that the eye examiner can perform the eye examination by superimposing the eyeglasses on the lenses of glasses that he or she usually wears.

Further, on each lens surface of the optometric lenses 2 and 3, graduations (not shown) showing datum lines are printed so that the optical center can be seen at a glance. Alternatively, instead of the scale of the datum line, a mark may be printed on the optical center portion.

The bridge 4 is mounted between the front mounting piece 8a and the both-side mounting pieces 8b, 8c of the base member 8 so as to be rotatable within a predetermined angle (about 90 ° to 120 °). . Rails 4a and 4b are formed at both ends of the bridge 4, respectively. Rails 4a, 4b
The slide members 9 and 10 are attached to each of them so as to be slidable with an appropriate frictional force. These rails 4
The slide mechanisms 6 and 7 are configured by the a and 4b and the slide members 9 and 10.

The slide members 9 and 10 and the rail 4a,
Reference numeral 4b denotes guide portions 8d and 8e formed on the base member 8.
Each of them is guided so that the bending in the back direction is buffered.

The optometry lenses 2 and 3 are attached to the slide members 9 and 10 via attachment members 11 and 12, respectively. Specifically, as shown in FIG. 4, in the case of the optometry lens 2, the holes 2a and 2b formed in the optometry lens 2 are shown.
Then, the protrusions 11a and 11b of the mounting member 11 are inserted into the holes 9a and 9b formed in the slide member 9, respectively, and the protrusions 11a and 11b are tightened from the back side by the tightening members 13a and 13b, respectively. ing. Similarly, in the case of the optometry lens 3, the protrusions 12a and 12b of the mounting member 12 are inserted into the holes 3a and 3b formed in the optometry lens 3 and the holes 10a and 10b formed in the slide member 10, respectively. This protrusion 12a, 12
b is fastened from the back side by fastening members 14a and 14b, respectively.

Both side mounting pieces 8b, 8c of the base member 8
Between the rear mounting pieces 8f and 8g and the hanger 15
Is rotatably attached. Both ends of the hanger 15 are bent downward, so that the holding portions 15a and 15a, respectively.
b. A knob 16 is attached to a central portion of the hanger 15, and the hanger 15 rotates integrally with the knob 16. However, the hanger 15, as shown in FIG.
The a and 15b are biased toward the optometry lenses 2 and 3 and are in contact with the sandwiching portions 8h and 8i formed on the base member 8, respectively.

The bridge 4, the hanger portion 5, the slide mechanism portions 6, 7 and the base member 8 are preferably made of synthetic resin such as plastic, but may be partially made of metal.

Next, a method of mounting the optometry auxiliary tool 1 having such a configuration will be described. FIG. 1 is a diagram showing a method of mounting the optometry auxiliary tool 1. When the auxiliary device 1 for optometry is attached, the knob 16 is pushed with a finger to hold the holding part 1 of the hanger 15.
Open 5a and 15b. Then, the lenses 21 and 22 of the spectacles 20 are placed between the clamping portions 15a and 8h, respectively, so that the subject eye wears the spectacles 20 that he or she usually wears from above.
It is sandwiched between 15b and 8i.

FIG. 5 is a front view showing a state in which the auxiliary device 1 for optometry is completely attached. Even when the eye examination auxiliary tool 1 is attached to the eyeglasses 20, fine adjustment of the alignment of the optical center can be performed. Adjust the knob 16 in the vertical direction as in Fig. 1.
By pressing down to loosen the holding force between the holding portions 15a and 8h, and between the holding portions 15b and 8i.
The length can be adjusted within the range of 8h and 8i. On the other hand, the adjustment in the horizontal direction can be performed within the movable range of the slide mechanism units 6 and 7 by manually moving the optometry lenses 2 and 3 to the left and right.

As shown in FIG. 6, the optometry lens 2,
Since 3 can be opened and closed up and down around the bridge 4, it is possible to know the difference between the case where the optometry aid 1 is used and the case where the optometry aid 1 is not used while the optometry aid 1 is attached to the glasses 20.

As described above, in this embodiment, the optometry lenses 2 and 3 are attached to the bridge 4 so that the hangers 5 can be mounted on the spectacles 20. Therefore, the cost can be reduced and the wearing feeling can be improved. improves. Also, since the work of attaching and detaching is easy, it is possible to easily compare the difference between when the optometry lenses 2 and 3 are worn and when they are not worn.

Furthermore, since the vertical and horizontal positions of the optometry lenses 2 and 3 with respect to the spectacles 20 can be easily adjusted, more accurate optometry can be performed. Further, since the optometry lenses 2 and 3 are only attached to the bridge 4, the size of the lenses can be freely designed, and it is possible to use the optometry lenses having the size suitable for the eyeglasses of the examinee. From this, it is possible to perform a more accurate optometry.

Furthermore, in this embodiment, since the optometry lenses 2 and 3 can be opened and closed vertically with the bridge 4 as the center, the optometry aid 1 with the optometry aid 1 attached to the spectacles 20 can be used. You can see the difference between using and not using.

[0022]

As described above, according to the present invention, the optometry lens is supported by the bridge, and the slide mechanism portion that allows the optometry lens to slide in the left-right direction with respect to the bridge is provided. By sandwiching the lens of the spectacles from above with a predetermined vertical width,
As I made the bridge detachable from the wearing glasses,
The simple structure reduces the cost and improves the feeling of wearing. Also, since the work of attaching and detaching is easy, it is possible to easily compare the difference between when the optometry lens is worn and when it is not worn.

Further, by mounting the bridge of the optometry auxiliary tool on the eyeglasses of the examinee and adjusting the position of the bridge in the vertical direction within a predetermined vertical width, the vertical position of the lens center of the optometry lens is adjusted. Fine adjustment is possible, and if the slide mechanism unit slides the optometry lens in the left-right direction with respect to the bridge, the interpupillary distance of the optometry lens can be finely adjusted. Therefore, a more accurate optometry can be performed.

Further, since the optometry lens is only supported by the bridge, the size of the lens can be freely designed,
It is possible to use an optometry lens having a size suitable for the eyeglasses of the examinee. From this, it is possible to perform a more accurate optometry.

[Brief description of drawings]

FIG. 1 is a diagram showing a method of mounting an auxiliary device for optometry.

FIG. 2 is a front view showing the outer appearance of the optometry aid of the present embodiment.

FIG. 3 is a perspective view showing an appearance of an auxiliary device for optometry as seen from the back side.

FIG. 4 is an exploded perspective view showing an attachment mechanism of an optometry lens.

FIG. 5 is a front view showing a state in which the auxiliary device for eye examination is completely attached.

FIG. 6 is a side view showing a state in which an eye examination auxiliary tool is attached to eyeglasses.

[Explanation of symbols]

 1 Auxiliary tool for optometry 2,3 Optometry lens 4 Bridge 4a, 4b Rail 5 Hanger part 6,7 Sliding mechanism part 8 Base member 9,10 Sliding member 15 Hanger 15a, 15b Clamping part 16 Knob 17 Spring 20 Glasses

Claims (4)

[Claims] 1. An optometry aid having an optometry lens, a bridge that supports the optometry lens, a slide mechanism section that allows the optometry lens to slide in the left-right direction with respect to the bridge, and a wearer of an examinee. An eye examination auxiliary tool, comprising: a hanger portion that allows the bridge to be attached to and detached from the wearing eyeglasses by sandwiching a lens of the eyeglasses from above with a predetermined vertical width. 2. The optometry aid according to claim 1, wherein the bridge is rotatably attached to the hanger so that the optometry lens can be opened and closed vertically. 3. The auxiliary device for optometry according to claim 1, wherein the optometry lens is provided with a mark indicating an optical center. 4. The auxiliary device for optometry according to claim 1, wherein the optometry lens is a lens for selecting a multifocal lens.