JP2023060821A - Bifocal glasses and light blocking prescription glasses - Google Patents

Abstract

To solve the problem in which: in glasses using normal bifocal lenses, an upper half of one lens is made for a long visual range and a lower half for a short visual range, and thus a user's visual field and field of vision are reduced to the half of normal glasses, and when the user's view point comes and goes across the border between different degrees, the user may suffer glasses sickness; therefore, there is a need for bifocal glasses that do not require the user to change the glasses, has a wide field of view, can quickly change the degree of the lenses, and prevent the user from suffering lens sickness.SOLUTION: A pair of glasses is overlapped on another pair of glasses and they are slid to make a distant state (open state) and a close state (overlapped and closed state). Bifocal glasses have a wide field of view, do not require a user to change glasses, and prevent the user from suffering glasses sickness, the bifocal glasses characterized in having a good fit when worn resulting from an improvement in temples and end tips in accordance with the details of use and situations. Using a lens for blocking light for outside lenses allows switching from prescribed glasses that are normally used to light blocking glasses, that is, glasses having a sunglass effect, which are suitable for driving cars. In these days everybody holds a mobile phone on one hand, the glasses eliminate or reduce time and effort and inconvenience for the user to switch one glasses to another with a different degree and remove the glasses worn before the switching. The degree of the lenses is selected to be the degree for seeing small characters on newspaper or characters on the mobile phone. The degree for seeing small characters-the degree for seeing a normal distance (inside lenses)=the degree to be added (outside lenses).

Description

The present invention relates to bifocal spectacles in which two lenses with different powers are provided in one spectacle.

Conventionally, as disclosed in Patent Documents 1 and 2 below, bifocal glasses in which half of one lens has a lens for hyperopia and the other half has a lens for myopia, and one lens such as Patent Document 3 Bifocal glasses that can be removed have been devised, but the former has a narrow field of vision because the field of view of normal glasses is halved, and because the lenses do not match the downward direction, it is difficult to step on the stairs. may wake you up. Also, the latter is troublesome because you have to put away the removed lens. An object that can be kept open and closed by the magnetic force of a magnet is unstable and may fall. I think that it is a stressful and inconvenient situation to take out another lens from a bag or eyeglass case and put it away in order to see the screen.

Japanese Patent Laid-Open No. 2014-85364 (rotating bifocal glasses) Japanese Unexamined Patent Application Publication No. 2014-85363 (vertical inversion type bifocal glasses) Japanese Patent Laid-Open No. 2011-158876 (Magnetic Detachable Glasses Set)

Therefore, there are the following problems.
1 With the advent of smartphones and tablets, it was necessary to frequently change to glasses with different lenses.
2. Due to this factor, the number of people who have to wear two glasses, etc., has increased, and since they have a mobile phone in one hand, it was necessary to change the phone instantly and save the trouble of cleaning up the changed one.
3 Conventional bifocal glasses have two powers in one lens. It's hard to understand, and it's hard to focus on what you want to see.
Some of the 41 lenses are not compatible with lenses that have 2 degrees, which can cause lens sickness, especially when going down stairs.
The focal point of the 5-lens power has a range, and since the range and range are wide, there was a focus range that was blurred.
The present invention has been made to solve these problems.

One spectacle is connected to the other spectacle by providing a connecting part as a support shaft in front of the temple, and by sliding the front spectacle up and down, the power of the lens can be changed instantaneously, compared to conventional multifocal spectacles. The field of view is wide, and the presence of two degrees in one lens is easy to cause lens sickness, but this is eliminated, the field of vision is expanded, the inconvenience is eliminated, and the need for storage is not required. It is a pair of glasses for near and far and near and far.

By improving the field of view and eliminating lens sickness, you can live comfortably on the ground without stress. , you can instantly switch to the lens that matches the distance of the object you want to see.

1 is a side view of the present invention; FIG. 1 is a partially cutaway perspective view of the present invention; FIG. 1 is a partially cut-away top view of the present invention; FIG. It is the figure which showed other Embodiment 4 of this invention. It is the figure which showed other Embodiment 4 of this invention. FIG. 12 is a diagram showing another embodiment 8 of the present invention; It is the figure which showed other Embodiment 4 of this invention. It is the figure which showed other Embodiment 5*7 of this invention. It is the figure which showed other Embodiment 5*7 of this invention. It is the figure which showed other Embodiment 5*7 of this invention. It is the figure which showed other Embodiment 3 of this invention. It is the figure which showed other Embodiment 6*7 of this invention. FIG. 5 is a diagram showing another physical mobile phone 5 of the present invention; FIG. 5 is a diagram showing another physical mobile phone 5 of the present invention;

EMBODIMENT OF THE INVENTION Hereinafter, the form for implementing this invention is demonstrated.
(1) The front glasses have a lens power of 1, and the length of the front glasses and the temple of normal glasses is about 30% (4 to 5 cm) length + α (up and down The spectacles have this connecting portion 17 as a support shaft at a position of about 1 cm in length necessary for the strength to withstand operation, and the rear spectacles to be connected also have a support shaft hole, and both spectacles are connected.
(2) As shown in FIG. 1, the temple 8 of the rear spectacles 2 is provided with the spindle (4) in FIG. Slide forward about 3 cm (because there is a slight difference in length depending on the design, and when 1 and 2 are slid up and down, 1 and 2 touch and cannot be slid) and are connected at the support shaft.
(3) Since the connecting portion 17 serves as a rotating shaft, in order to reduce friction, it is not necessary depending on the material of the spectacles shown in Fig. 1-3. , The support shaft hole to which the rear spectacles are connected is provided at a portion of 4 to 5 cm, which is about 30% of the length of the temple, from the lens of the rear spectacles. However, regardless of the member, shape, or material, it is regarded as a support shaft, connection, and rotation element, and the position of this support shaft is 27 to 30 A support shaft hole and a support shaft are provided at the position of % length, but if this percentage is about 20%, it will hit the forehead quickly when the front eyeglass frame opens upward, so it is not suitable for use. At the same time, by having it behind the support shaft of the rear spectacles, it moves up and down around the rotation axis, so it hits the ear and cannot be used, so it is essential to eliminate it as shown in Fig. 1.2.3.
(4) As shown in Fig. 1, fine characters can be seen when the glasses are completely overlapped. The position of the lens is , and the upper part of the frame (rim) of the front glasses acts as a boundary line between far and near, making it easier to focus and reduce lens sickness than normal bifocals.
(5) Since it weighs about 1.5 times as much as normal glasses, as shown in Fig. 3, a strap, a metal insert in the center that can be deformed into various shapes, and a rubber covering are used. The wire-type temples and the goggle-type band type can be fixed entirely or partially to fit various head shapes, giving it a sense of hold and making it easy to slip and fall off. It has the effect of preventing work-related movements, and the 3-lens type of FIGS. 8 to 10 is easy to use with such an auxiliary tool because the whole glasses are heavy.
(6) As shown in the comparison diagram in FIG. 11, depending on the user's posture, the range of the field of vision can be adjusted to an appropriate range according to various situations, so that the rim (frame) part can be adjusted to the degree of the lens. It replaces the boundary line between the two, making it easier to focus on what you want to see than normal bifocals, reducing lens sickness, and providing the same effect as normal bifocals while at the same time increasing the field of vision. It also has a ratio adjustment function.
(7) By attaching a third lens as shown in Fig. 8, it becomes the world's first (?) glasses for distance, middle and near distance with three degrees of coexistence. Regarding this usage, as shown in Figures 8 to 10, by superimposing the lenses of the three glasses, it is possible to comfortably see by matching the viewpoints of various distances such as far, middle, and near. If you set it to shift from the inside to the middle and near distance, you can switch to the middle and far distance by stacking the third eye. It is possible to resolve the anguish of the field of vision delicately.
(8) The hinge at the normal eyeglass position is not necessary for this invention. As shown in Fig. 6, it is possible to provide a hinge about 1 cm behind the support shaft of the rear eyeglass and fold it, and it is a wire type. can be folded in the same way, and by using glasses straps, bands, temples and temples such as those shown in Figs. and reduces misalignment of glasses.
(9) Let me explain the form for carrying out the invention for the explanation of each figure,
Description of Figure 4:
A type that prevents the glasses from falling or slipping by turning the strap around the back of the head using the curvature of the temples and the strap hole.
Description of Figure 5:
The temple part can be repeatedly bent to the center from the back of the rotating shaft. By connecting the temple covered with rubber-based resin containing metal, it can be bent according to various head shapes. , The glasses can be worn perfectly, and the temples can be deformed in any direction, making it possible to fold them.
Description of Figure 6:
In the spectacles of the present invention, since the hinges in the normal position do not function, the hinges are provided behind the rotation support shaft in the temple portion so that the spectacles can be easily carried by being folded.
Description of Figure 7:
There is no temple on the back of the rotating spindle, and a strap is connected to the rotating spindle, and an elastic band is attached to the strap to prevent it from slipping or falling off.
A goggle type that fixes the position of the glasses in three places, the cushions newly provided between the ears and the eyebrows.
Description of Figures 8, 9 and 10:
By combining the three pairs of spectacles, there is an effect that the load on the visual field of the user can be reduced by various usages of combinations of the three glasses such as near-far, medium-near, and medium-far.
Description of Figure 11:
The position of the support shaft for the front glasses and the rear glasses is about 30% of the length of the temple of the rear glasses from the position of the lens of the rear glasses to the position of the temple. When the lens is raised upward, it hits the forehead and is considered unsuitable for use. A picture comparing them.
Description of FIG. 12:
By shifting the front glasses downward from the lenses of the rear glasses, it becomes the lens position of normal bifocal glasses, and by changing the shifting angle according to the user's posture etc. For example, by shifting the front glasses according to the posture of viewing the TV screen in the distance and the mobile screen nearby, the lens ratio is different from the fixed lens ratio of the normal progressive lenses. In contrast, the far and near vision ratio can be adjusted, and in the case of the three lenses for far, middle and near distances shown in Figs. A picture comparing them.
Description of Figure 13:
The band type in FIG. 7 is a diagram of a cushion that hits between the eyebrows, with the eyebrows and the nose pads viewed from the point of view, not the ears.
Description of FIG. 14:
It will be the connection part of the band and glasses in Fig. 7 and it will be the upper view.
That's it.
(10) Regarding the power of the lens, select the power so that when the lenses are overlapped, it will be the power to see fine newspapers and text on mobile phones.
If the power for viewing fine print is +4.0 - If the power for normal viewing from a distance is +2.0 (inner lens)
= The power of the plus lens (lens of the glasses that slides outside) is +2.0.
will be
Even if there are three pieces, it is possible to eliminate the discomfort of various users' vision depending on the combination, just like addition and subtraction.

1: Front Glasses 2: Rear Glasses 3: Washers 4: Support Screws 5: Nuts 6: Glasses Strap Holes 7: Glasses Straps 8: Temples 9: Hinge 10: Coupling Cups 11: Transformable Operating Temples 12: Between Eyebrows Partial sponge cushion 13 : Eyeglass band 14 : Lens glasses for far vision 15 : Lens glasses for medium vision 16 : Lens glasses for myopia 17 : Joint part 18 : Short temple of front glasses

Claims (5)

Fig. 1 (2), which corresponds to the temple of the rear spectacles for nearsightedness, is provided with Fig. 1 (3, 4, 5), which is the connection part that will be the rotating shaft, and Fig. 2 (1), which corresponds to the temple of the front spectacles for hyperopia. ) is connected to the glasses for myopia. The power of the lens for hyperopia is set in FIG. 1 (1) and combined with FIG. By sliding and rotating the frame and temples, you can manually change the distance and near field of view you want to see in an instant. With some adjustment, it is possible to play the same role as a normal progressive lens, and it is possible to play that role with a much wider field of vision. The support shaft is located at a length of about 30% (4 to 5 cm) of the temple of spectacles and normal spectacles + α (approximately 1 cm length required for strength to withstand repeated vertical movements). The spectacles having this joint portion 17 and the rear spectacles to be connected also have a pivot hole, and both spectacles are connected, and the temples 8 of the rear spectacles 2 are provided with pivots in the front part of the lens in FIG. 1 (4). , the distance between the lenses of the front spectacles 1 and the rear spectacles 2 is 1 to 1 . 3 cm (due to the slight difference in length depending on the design, when sliding 1 and 2 up and down, 1 and 2 touch and cannot be slid). Since the connecting part 17 serves as a rotation axis, it may not be necessary depending on the material of the spectacles shown in FIGS. 1-3 to reduce friction. By providing a support shaft hole that connects to the rear spectacle lens at a portion of 4 to 5 cm, which is about 30% of the length of the temple, the support shaft is a screw and a nut as shown in the comparison diagram of FIG. However, regardless of the member, shape, or material, it is regarded as a support shaft, connection, and rotation element. A support shaft hole and a support shaft are provided at the position of the back, but if this percentage is about 20%, it will hit the forehead quickly when the front eyeglass frame opens upward, so it is not suitable for use, and at the same time it is not suitable for use. By having it behind the support shaft of the glasses, it moves up and down around the rotation axis, so it hits the ear and cannot be used. can perform its function. Regarding the power of the lens, select the power so that it will be the power to see fine newspapers and text on mobile phones,
Near distance (degree for viewing fine print) - long distance (degree for viewing normal distance, inner lens) = plus power (outer lens),
In the case of the three-lens lens in Fig. 8, it is the same,
Near distance (power for fine print) - Middle distance (power for normal distance viewing, inner lens) - Long range (power for normal distance viewing, inner lens) = Plus power (middle and outer lenses) . As shown in Fig. 4 (7), Fig. 5, and Fig. 7, for example, the wire type temple part, eyeglass strap, goggle type eyeglass band, etc. are improved according to the movement of the user for light sports and light work. By using objects, the problem of weight associated with the application requirements can be alleviated, and in the case of the three lenses in Fig. 8, the weight of the glasses becomes even heavier, so it is necessary to use objects that are more suitable for the user. However, by changing the position of the hinge as described in the eighth embodiment, it is possible to fold it in the same way as the wire type. By using an oblique light lens for the outer lens, you can obliquely light the prescription glasses you normally use and switch to glasses with a sunglasses effect. It is also possible to use a lens together.

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