WO2019073950A1

WO2019073950A1 - Eyeglass cover

Info

Publication number: WO2019073950A1
Application number: PCT/JP2018/037524
Authority: WO
Inventors: 翔佐々木
Original assignee: 学校法人帝京大学
Priority date: 2017-10-10
Filing date: 2018-10-09
Publication date: 2019-04-18
Also published as: JPWO2019073950A1; JP7179355B2

Abstract

An objective of the present invention is to provide an eyeglass cover capable of being attached to frames or lenses having a variety of shapes. Provided is an eyeglass cover comprising: a main body part (11) positioned in proximity to one surface of one lens (22) of eyeglasses (20) comprising a pair of lenses (22) and a frame (21) supporting the lenses (22), said main body part (11) imparting an optical characteristic to a wearer of the eyeglasses (20) that differs from a situation where the lenses (22) are used without the cover; and a locking part (15) protruding from the main body part (11) toward the one surface side of the lens (22) and capable of locking either on an upper end part of a rim (23) of the frame (21) or an upper end part of the lens (22).

Description

Shield for eyeglasses

BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to an eyeglass shield applied at the time of vision test.

In the visual acuity test in ophthalmology, the naked eye visual acuity without correction of glasses and the like and the refractive acuity corrected visual acuity with correction with glasses and the like are respectively measured. In particular, in order to evaluate the visual function in the daily life of the patient, it is essential to measure the visual acuity when the patient wears the glasses (hereinafter referred to as the eyeglass acuity).

In the measurement of eyeglass vision, in order to measure the eyeglass vision of the patient's eye one by one, an eyeglass shut-off device is used which shuts off the vision of the eye not to be measured.

An example of a commonly used eyeglasses shield (see Non-Patent Document 1) will be described with reference to FIGS. 5 and 6.

As shown in FIGS. 5A and 5B, the eyeglass closure 30 includes a black plate-like substantially elliptical main body 31, a knob 32 projecting upward from the main body 31, and a main body 31. And a sandwiching portion 33 attached to the back surface (front in FIG. 5B). The pinching portion 33 is provided with a knob portion 34 provided on the back side (front side in FIG. 5B) of the knob portion 32, a pair of pressing portions 35 extending bifurcatedly in the figure from the knob portion 34, and the knob A supporting portion (not shown) (not shown) configured to support the portion 34 and the pressing portion 35 so as to be able to contact with the main body portion 31 freely, and to urge the knob 34 and the pressing portion 35 toward the back side of the drawing in FIG. And. The holding portion 35 is covered with a tube 36 made of an elastic member such as rubber or plastic for lens protection.

When measuring the eyeglass vision, as shown in FIG. 6A and FIG. 6B, the pressing portion 35 is biased by urging the pair of

knob portions

32 and 34 of the eyeglass closure 30 close to each other. The main unit 31 is disposed in front of the lens 41 (the right lens 41 in FIG. 6A) corresponding to the eye on the side not to be measured of the glasses 40 in this state, When the biasing force applied to the

portions

32 and 34 is released, the lens 41 is sandwiched and fixed between the main body portion 31 and the pressing portion 35 by the biasing force of the support portion. Thereby, the field of vision of the eye (left eye in FIG. 6) which is not the measurement target can be blocked by the eyeglasses blocker 30.

However, the above-described eyeglasses shield 30 has a configuration in which the lens 41 is held between the main body portion 31 and the pressing portion 35 by the biasing force of the biasing member, so that the frame of the applicable glasses 40 is limited. There was a problem of

As an example, as shown in FIG. 7, the glasses 41 are mounted on the glasses 40 configured such that the lens 41 is fixed only at a part of the frame 42 (near the bridge 43 in the illustrated example) and the lens 41 protrudes to the front of the frame 42 otherwise. When it is intended to apply the shield 30, the force in the direction approaching the frame 42 acts on the lens 41 by the biasing force of the support portion, and the frame 42 and the lens 41 may be deformed. In such a state, it may even be difficult in practice to wear the eyeglass closure 30.

The present invention has been made in view of the above-mentioned circumstances, and an object thereof is to provide a closure for glasses which can be worn in various shapes of frames and lenses.

In order to achieve the above object, the eyeglass closure of the present invention is disposed close to one surface of one lens of the glasses having a pair of lenses and a frame supporting the lenses, and for the wearer of the glasses Having a main body portion which provides different optical characteristics from the case of only the lens, and a locking portion which protrudes from the main body portion to one surface side of the lens and can be locked to the rim upper end of the frame or the upper end of the lens It features.

The eyeglasses shutter of the present invention thus configured is disposed close to one surface of one of the lenses of the glasses having the pair of lenses and the frame supporting the lenses, and the lens for the wearer of the glasses The main body has an optical characteristic different from that of the case only, and a locking portion which protrudes from the main body to one surface of the lens and can be locked to the rim upper end of the frame or the upper end of the lens.

Therefore, the eyeglass closure can be worn by locking the locking portion to the rim upper end of the frame or the upper end of the lens, regardless of the shape or support structure of the eyeglass lens or frame It is possible to provide a closure for spectacles that can be worn in various frame and lens configurations.

It is a front view showing the eyeglasses interceptor which is one side of this indication. It is a right side view showing the eyeglasses interceptor which is one side of this indication. It is a reverse view showing the eyeglasses interceptor which is one side of this indication. BRIEF DESCRIPTION OF THE DRAWINGS It is a front view which shows the state which mounted | wore the spectacles with the shielding device for spectacles which is one side of this indication. It is a perspective view which shows the state which equipped the spectacles with the shielding for spectacles which is one side of this indication. It is a figure for demonstrating the effect | action of a balancer part. It is a figure for demonstrating the operation | movement of a latching | locking part. It is a figure for demonstrating the operation | movement of a latching | locking part. It is a front view showing an example of a common eyeglasses shield. It is a reverse view showing an example of a common eyeglasses interceptor. It is a front view showing the state where one example of a common eyeglasses closure was worn on glasses. It is a reverse view showing the state where one example of a common eyeglasses closure was worn on glasses. It is a perspective view showing an example of glasses.

Hereinafter, the eyeglasses interceptor which is one aspect of the present disclosure will be described with reference to FIGS. 1A to 4B.

FIG. 1A is a front view showing a light shield for eye according to one aspect of the present disclosure, FIG. 1B is a right side view, and FIG. 1C is a back view.

In these figures, the eyeglasses shield 10 which is one side of this indication has the main-body part 11. The main body portion 11 is composed of a plate-like member formed in a substantially elliptical outer shape, and as will be described in detail later, when the eyeglass closure 10 is worn on the eyeglass, one side of one lens of the eyeglass is It is placed in close proximity and shields this lens. Accordingly, the main body portion 11 is preferably formed to be sufficiently larger than the lens in consideration of the dimensions (especially, the top and bottom and the ball shape) of the lens of a commercially available spectacle.

Preferably, the main body portion 11 is configured by sticking a black hard paper, a hard plastic plate or the like on both sides of a lightweight plate-like member such as foam plastic or sponge, and is formed in an opaque black plate as a whole There is.

A through hole 11a in the form of an elongated hole penetrating in the thickness direction is formed in the upper central portion of the main body 11, and a substantially rectangular connection member 12 is inserted into the through hole 11a. A guide portion 13a extending along the surface of the main body portion 11 on the front surface side (front surface side) of the connection member 12 in FIG. 1A and a front side (left side in FIG. 1B) in FIG. The slide knob 13 having the knob portion 13 b is connected.

On the other hand, a guide plate 14 extending along the back surface of the main body 11 is connected to the back surface side (front surface side in FIG. 1C) of the connecting member 12 in FIG. 1A. Then, on the left and right end portions of the guide plate 14, a pair of locking portions 15 protruding upward in FIG. 1C and to the right in FIG. 1B are attached.

As will be described in detail later, the locking portion 15 is mounted on the spectacles closure 10 when the main body portion 11 is disposed close to one surface of one lens of the spectacles. It projects to one side and is configured to be lockable to the rim upper end of the frame of the glasses or the upper end of the lens.

The locking portion 15 is formed in a hook shape which curves downward in FIG. 1B, as best shown in FIG. 1B. The locking portion 15 is preferably made of a soft member such as a sponge, and is formed in black in order to enhance the shielding effect by the main body portion 11. The locking portion 15 is connected to the guide plate 14 by the connecting member 16.

With the above configuration, as shown in FIG. 4A, by sliding the slide knob 13 in the vertical direction, the locking portion 15 can be moved in the vertical direction along with the slide of the slide knob 13. Therefore, for example, in the case of narrow eyeglasses, it is possible to cope with narrow eyeglasses to wide eyeglasses by moving the locking portion 15 downward as shown in FIG. 4B.

Referring back to FIGS. 1A to 1C, the balancer portion 18 is attached to the upper end of the main body portion 11 via the connecting rod 17. The balancer portion 18 is formed of a plate-like member formed to have an outer shape and an elliptical shape with a smaller diameter than the main body portion 11. The balancer portion 18 is attached to the main body portion 11 so as to tilt forward in FIG. 1B, as best shown in FIG. 1B. Thereby, the center of gravity of the eyeglass closure 10 as a whole is slightly above the center of the main body portion 11 and together with the locking portion 15 provided on the upper portion of the main body portion 11, and FIG. Will be located slightly to the left.

As best shown in FIG. 1C, a non-slip portion 19 made of a material having anti-slip effect and made of foamed plastic, sponge or the like is attached to the lower portion of the back surface (front surface in FIG. 1C) of the main body portion 11. . The anti-slip portion 19 is, as described in detail later, when the eyeglass closure 10 is worn on the eyeglasses and the body portion 11 is disposed close to one surface of one lens of the eyeglasses, the body portion 11 It is provided on one side of the lens of the 11 glasses, and is provided to be able to abut on one side of this lens.

A procedure for wearing the eyeglasses shield 10 having the above-described configuration will be described with reference to FIGS. 2A and 2B. FIG. 2A is a front view showing a state in which the eyeglasses light shield 10 which is one aspect of the present disclosure is worn on eyeglasses, and FIG. 2B is a perspective view thereof.

In order to wear the eyeglasses interceptor 10 according to one aspect of the present disclosure to the eyeglasses 20, one of the pair of lenses 22 of the eyeglasses 20 supported by the frame 21 (an example shown in FIGS. 2A and 2B Then, the main body 11 of the glasses 20 is disposed on the front surface of the lens 22) for the left eye in the figure, and in this state, the locking portion 15 is placed on the upper end of the rim 23 of the frame 21 corresponding to the upper side of the lens 22 The locking device 10 is locked to the glasses 20 by the locking portion 15. Alternatively, in the case of a so-called rimless frame (a frame of a type in which the rim 23 is omitted and the lens is directly supported), the locking portion 15 is placed on the upper end portion of the lens 22 and locked.

Then, by sliding the slide knob 13, the locking portion 15 is vertically moved relative to the glasses 20, and the entire lens 22 is blocked by the main body portion 11. Thereby, the eyeglasses shield 10 can be worn on the eyeglasses 20.

At this time, as described above, since the center of gravity of the entire eyeglass closure 10 is located slightly forward to the left in FIG. 2B than the main body 11, the eyeglass closure 20 is engaged with the eyeglass 20 by the engagement portion 15. Then, the main body 11 slightly rotates counterclockwise, and the anti-slip portion 19 stops in a state of being lightly in contact with the front surface of the lens 22. Thereby, the relative movement between the eyeglasses shield 10 and the eyeglasses 20 (particularly, the lens 22) is suppressed.

Furthermore, as shown in FIG. 3, when the wearer of the glasses 20, that is, the patient takes a forward-looking posture and rotates the glasses 20 counterclockwise in the figure, the barycentric position of the eyeglass closure 10 as described above. Since the main body 11 rotates counterclockwise, the anti-slip portion 19 more strongly abuts on the front surface of the lens 22. Thereby, the relative movement between the eyeglasses shield 10 and the eyeglasses 20 (particularly, the lens 22) is further suppressed.

The eyeglasses light shield 10 which is one aspect of the present disclosure configured in this manner is disposed close to one surface of one lens 22 of the eyeglasses 20 having the pair of lenses 22 and the frame 21 supporting the lenses 22. The main body portion 11 has a locking portion 15 which can be locked to the upper end portion of the rim 23 of the frame 21 or the upper end portion of the lens 22 by protruding from the main body portion 11 to one surface side of the lens 22.

Therefore, the eyeglass closure 10 can be worn by engaging the engaging portion 15 with the rim 23 upper end portion of the frame 21 or the upper end portion of the lens 22. It is possible to provide an eyeglasses shield that can be worn in various frame 21 and lens 22 shapes, regardless of the shape and support structure.

That is, since the eyeglasses shut-off device 10 which is one aspect of the present disclosure is not configured to be sandwiched like the general eyeglasses shield 30, it is a three-dimensional frame 42 as shown in FIG. 7, for example. However, the lens 41 can be worn without exerting an excessive force.

Further, since the locking portion 15 is formed in a hook shape which curves downward as best shown in FIG. 1B, the eyeglass closure 10 can be reliably locked regardless of the thickness of the frame 21. The frame 21 can be applied to a frame 21 having a wide range of shapes from a narrow frame to a thick frame, and further to a three-dimensional frame 42 as shown in FIG. 7.

Here, since the main body portion 11 shuts off the one lens 22, a shielding effect by the eyeglass shutoff device 10 can be sufficiently expected.

Further, since the pair of the locking portions 15 is provided, the locking of the eyeglass closure 10 to the eyeglasses can be made reliable.

Furthermore, since the locking portion 15 is provided so as to be movable in the vertical direction of the lens 22, by moving the locking portion 15 in the vertical direction according to the dimension of the lens 22 in the vertical direction, We can cope from to wide glasses.

Furthermore, since the anti-slip portion 19 provided on one surface side of the lens 22 of the main body 11 and capable of abutting on one surface of one lens 22 is provided, the anti-slip portion 19 abuts on one surface of the lens The relative movement between the shield 10 and the glasses 20 can be suppressed, so that even if the wearer of the glasses 20 moves his face, the glasses shield 10 can sufficiently follow the movement.

And since it has balancer part 18 projected upwards from the upper end part of main part 11, the center of gravity of eyeglasses shield 10 is moved upward by this balancer part 18, and, by this, the wearer of glasses 20 is temporarily Even in the forward inclined posture, the relative movement between the eyeglasses shield 10 and the eyeglasses 20 can be suppressed by rotating the main body 11 in the direction closer to the lens 22 side. In particular, when measuring the visual acuity at hand (near visual acuity), the patient takes a forwardly inclined posture, and in such a case, it is preferable to be able to suppress relative movement between the spectacle shield 10 and the spectacles 20.

As mentioned above, although the aspect of the present disclosure has been described in detail with reference to the drawings, the specific configuration is not limited to one aspect of the above-described disclosure, but a design change to the extent that does not deviate from the scope of the present invention Included in the invention.

As an example, in the eyeglasses light shield 10 which is one aspect of the present disclosure described above, the lens 22 is completely shielded by forming the main body 11 as a whole in an opaque black plate shape. The configuration of the unit is not limited to this, and is not limited as long as it can provide the wearer of the glasses with optical characteristics different from those of the lens only. As an example of such a main body part, a black transparent one like sunglasses, a translucent one like ground glass, a convex lens with a strong power, a pinhole lens, and a lens having an optical characteristic different from that of glasses are inserted. Possible lens holders etc. are mentioned.

Further, even when the main body portion 11 is formed as an opaque black plate as a whole, the side opposite to the lens 22 (the front side in FIG. 1A) does not have to be black. You may

Furthermore, the number and shape of the locking portions are not limited to the above-described one aspect of the disclosure, and various modifications are possible. As an example, in the eyeglasses light shield 10 which is one aspect of the above-mentioned disclosure, as best shown in FIG. 1C, the tips 15a (lower end in the drawing) of the locking portion 15 are bent in the direction approaching each other. . In other words, it can be considered that the pair of locking portions 15 is disposed on the arc of a horizontally extending curve in FIG. 1C. Therefore, even a single curvilinear lock corresponding to the arc of this curve can be locked to the glasses. However, by providing the pair of locking portions 15 as in one aspect of the present disclosure, there is an advantage that the locking portions 15 can be balanced and locked to the glasses 20.

Cross-reference to related applications

This application claims priority based on Japanese Patent Application No. 2017-196631 filed with the Japan Patent Office on October 10, 2017, the entire disclosure of which is incorporated herein by reference in its entirety.

Claims

A body portion disposed in proximity to one surface of one of the lenses of the pair of lenses and a frame supporting the lenses, the body portion providing an optical characteristic different from that of the lenses alone to the wearer of the glasses; And a locking portion which protrudes from the main body portion to the one surface side of the lens and which can be locked to a rim upper end portion of the frame or an upper end portion of the lens.
The eyeglasses shut-off device according to claim 1, wherein the body part shuts off one of the lenses.
The eyeglasses shut-off device according to claim 1, wherein the locking portion is provided in a pair.
The eyeglasses shield according to any one of claims 1 to 3, wherein the locking portion is provided movable in the vertical direction of the lens.
The eyeglass shield according to any one of claims 1 to 4, further comprising a non-slip portion provided on the one surface side of the lens of the main body portion and capable of abutting on the one surface of one of the lenses. Closure.
The eyeglasses shield according to any one of claims 1 to 5, further comprising a balancer portion protruding upward from an upper end portion of the main body portion.