Spectacles

Abstract

To provide a pair of spectacles which promotes posture correction of a user when worn on the face of the user.SOLUTION: A pair of spectacles is provided, comprising: prism lenses, each having a thickness that changes uniformly from one end to the other end; elongate region dividing members extending in a direction different from a direction in which the prism lens thickness does not change, each region dividing member being designed to divide a surface of the prism lens into two regions with area difference; and a frame for holding the prism lenses as spectacle lenses.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to eyeglasses. [Background technology]

[0002] It has been said that there is a close relationship between a person's field of vision and their body. For example, Patent Document 1 discloses eyeglasses that use prism lenses to shift the wearer's field of vision according to the direction in which the base of the prism lens is located, thereby correcting the wearer's posture. Furthermore, Patent Document 2 discloses posture-correcting eyeglasses that have a difficult-to-see area that extends in the left-right direction and is located below the center of the lens. Patent Document 2 states that the user will attempt to look at an area where there is no difficult-to-see area, resulting in a downward posture. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2020 / 174636 [Patent Document 2] Japanese Patent Application Laid-Open No. 2012-73485 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the case of Patent Document 1, the use of a prism lens causes a problem in that the field of view can only be shifted in one direction. This is also the case in Patent Document 2.

[0005] Therefore, the object of the present invention is to provide eyeglasses that can have a favorable effect on the user's posture and nervous system by stimulating the user's unconscious spatial recognition ability based on visual information, an effect that cannot be achieved with prism lenses alone. [Means for solving the problem]

[0006] In order to solve the above problem, the eyeglasses of the present invention comprise a prism lens whose thickness changes uniformly from one end to the other, a long area dividing member that extends in a direction different from the direction in which the thickness of the prism lens does not change and divides the surface formed by the prism lens into two areas with different areas, and a frame that holds the prism lens as a lens of the eyeglasses.

[0007] In the above eyeglasses, the area dividing member may be provided on the surface of the prism lens, biased toward the opposite side from the direction in which the line of sight of the user wearing the eyeglasses is to be guided.

[0008] In the above eyeglasses, the area dividing member may extend perpendicular to a direction in which the thickness of the prism lens does not change.

[0009] In the above eyeglasses, the area dividing member may be configured to be detachable from the prism lens.

[0010] In addition, in the above-mentioned eyeglasses, the thickness of the prism lens may vary in the vertical direction of the eyeglasses, and the area dividing member may be arranged so as to be positioned to the left of the prism lens when viewed from the front.

[0011] In the eyeglasses, the area dividing member may be a long, rectangular member.

[0012] In addition, in the above-mentioned glasses, the prism lens has a thickness that changes in the left-right direction of the glasses, with the thickness on the inner edge side being thicker than the thickness on the outer edge side, and the area dividing member may extend in the left-right direction of the glasses and be positioned below the prism lens.

[0013] Furthermore, in the above-mentioned glasses, the prism lens may have a thickness that changes in the vertical direction of the glasses, with the lower side being thicker than the upper side, and the area dividing member may extend in the vertical direction of the glasses and be positioned near the outer edge of the prism lens in the horizontal direction.

[0014] In the above eyeglasses, the area dividing member may be a string-like member, and the frame may include a fastening portion for fastening the string-like area dividing member. [Effects of the Invention]

[0015] The eyeglass lenses of the present invention employ prism lenses, which allow the visible field of view to be shifted in one direction before entering the user's eyes. As a result, the user's posture can be corrected in accordance with the shifting direction. Meanwhile, the eyeglass lenses of the present invention include a long area dividing member. The area dividing member extends in a direction different from the direction in which the thickness of the prism lens does not change, dividing the prism lens into two areas with different areas. Users generally view objects broadly without any foreign objects in their field of view. Therefore, when a lens is divided into two areas with different areas, a user using the prism lens views objects through the larger of the two areas. That is, the user generally views objects with the center of the larger of the two areas as the center of their field of view. As a result, the area dividing member can also guide the user's line of sight. As a result, the user's posture can be corrected in accordance with the direction in which the user's line of sight is guided. As a result, the eyeglasses according to the present invention can provide the user with a posture correction effect that combines the posture correction effect of the prism lenses and the posture correction effect of the area dividing member. Therefore, a more complex posture correction effect can be achieved than with the prism lenses alone or the area dividing member alone. As a result, as a specific example, the prism lenses can suppress forward thrust of the user's head, encouraging upward rolling and leftward turning. [Brief explanation of the drawings]

[0016] [Figure 1] FIG. 1 is an external view of prism glasses. [Figure 2] 1A and 1B are diagrams showing a first example of refraction of incident light in prism glasses (prism structure). [Figure 3] 10A and 10B are diagrams showing a second example of refraction of incident light in prism glasses. [Figure 4] 10A and 10B are diagrams showing a third example of refraction of incident light in prism glasses. [Figure 5] 10A and 10B are diagrams showing a fourth example of refraction of incident light in prism glasses. [Figure 6] 1A is a schematic view showing the appearance of eyeglasses provided with area dividing members, and FIG. 1B is a schematic view showing how to use the eyeglasses shown in FIG. [Figure 7] 1A is a front view of the eyeglasses, and FIG. 1B is a diagram showing how the rims of the eyeglasses are divided. [Figure 8] 1A is a diagram showing the line of sight of a user when the eyeglasses are not provided with an area dividing member, and FIG. 1B is a diagram showing the line of sight of a user when the eyeglasses are provided with an area dividing member. [Figure 9] 10(a) to 10(d) are diagrams showing examples of eyeglass frame shapes and their relationships with area dividing members. [Figure 10] 1A is an external view showing an example of the configuration of eyeglasses in which an area dividing member is provided in a prism lens according to the present invention, FIG. 1B is a cross-sectional view taken along line AA, and FIG. 1C is a cross-sectional view taken along line BB. [Figure 11] 1A is an external view showing a second configuration example of eyeglasses in which an area dividing member is provided in a prism lens according to the present invention, FIG. 1B is a cross-sectional view taken along line AA, and FIG. 1C is a cross-sectional view taken along line BB. [Figure 12] 10A is a diagram showing yet another example of the configuration of eyeglasses, (b) is a cross-sectional view taken along line AA, (c) is a cross-sectional view taken along line CC, and (d) is a cross-sectional view taken along line BB. [Figure 13]10A is a diagram showing yet another example of the configuration of eyeglasses, (b) a cross-sectional view taken along line AA, (c) a cross-sectional view taken along line CC, (d) a cross-sectional view taken along line BB, and (e) a cross-sectional view taken along line DD. [Figure 14] 10A is a diagram showing yet another example of the configuration of eyeglasses, (b) a cross-sectional view taken along line AA, (c) a cross-sectional view taken along line CC, (d) a cross-sectional view taken along line BB, and (e) a cross-sectional view taken along line DD. [Figure 15] 1A and 1B are schematic diagrams showing the appearance of the eyeglasses, 1C and 1D are cross-sectional views of the lens portion, and 1E is a cross-sectional view showing another embodiment of the lens portion. [Figure 16] (a) is a perspective view of the area dividing member, (b) is a perspective view of the back side of the area dividing member, (c) is a front view of the area dividing member, (d) is a back view of the area dividing member, and (e) is a side view of the area dividing member. [Figure 17] 1A is a diagram showing an example in which a string-like member is attached to eyeglasses as an area dividing member, and FIGS. 1B and 1C are diagrams showing an example in which a locking portion for attaching the area dividing member is provided on the frame of the eyeglasses. DETAILED DESCRIPTION OF THE INVENTION

[0017] The eyeglasses according to the present invention will be described in detail with reference to the drawings.

[0018] (Embodiment) First, a case where prism lenses are used in eyeglasses will be described with reference to Figures 1 to 5. Figure 1 shows an example of the appearance of eyeglasses using prism lenses.

[0019] FIG. 2 is a diagram showing how incident light is refracted in the prism eyeglasses 1. As shown in FIG.

[0020] The prism glasses 1 are worn on the face of a user, and have the function of changing the direction of light from the outside world and inputting it into the user's eyes through prism lenses held by a frame that face the user's eyes. The lenses of the prism glasses 1 are composed of a prism structure. In this description, the prism structure refers to a structure, such as a prism lens, that has the property of refracting light.

[0021] As shown in Figure 1, prism eyeglasses 1 as a prism structure include a frame 12 and a pair of prism lenses 11 arranged side by side in the left-right direction on the frame 12, each of which refracts incident light in the same direction.

[0022] The pair of prism lenses 11 have the same refraction angle. Here, as shown in Fig. 2, the refraction angle of a lens is the refraction angle of light incident on the lens, and refers to the angle θ between the light incident on the lens and the light emitted from the lens. The refraction angle of prism lens 11 is expected to be 0.5° to 20°, and is particularly preferably 0.5° to 2°.

[0023] The surface of the prism lens 11 facing the user is flat, and the surface facing the user is inclined relative to the flat surface. This allows the thickness of the prism lens to increase or decrease monotonically. That is, the thickness of the prism lens changes uniformly from a predetermined thickness x1 to a predetermined thickness x2 (x2 is a length different from x1). For example, the thickness may be configured to increase monotonically from the right side to the left side of the eyeglass frame, or to decrease monotonically from the top to the bottom of the eyeglass frame. The direction of the change in thickness can be determined arbitrarily depending on the direction in which the user wishes to shift their field of view of the outside world (the direction in which they wish to correct their posture).

[0024] Prism lenses 11 are classified into base-left prism 11A, base-right prism 11B, base-down prism 11C, and base-up prism 11D depending on the direction of refraction. Referring to FIG. 2, base-left prism 11A will be described. As shown in FIG. 2, when used by user P1, the pair of prism lenses 11 increase in thickness from right to left as viewed from user P1. Such a prism lens 11 is called base-left prism 11A. The thicker side of the lens is called the base, and the name of the lens is determined by which side the base is located.

[0025] In the case of the base left prism 11A, the visual information of the user P1 is input in a state where it is shifted to the right of the actual space, which can promote the rotational movement of the eyeball to the right.

[0026] To elaborate on this point, the line of sight leads walking, so when a target object moves to the right, walking to the right is promoted and the eyeball rotates to the right.

[0027] The important functions are to obtain visual information about the direction of one's future destination, and to accurately control trunk rotation by using information on how much the eyes have moved (how much the eyes have rotated) to direct one's gaze in that direction. In other words, people unconsciously use various information obtained from their vision when walking. Furthermore, changes in these factors that cause changes in optic flow mean changes in gait. Changes in gait can be expected to reconstruct the internal and external loops.

[0028] Additionally, when user P1 walks, weight is shifted to the right. This causes the right half of the body to bend and tense, as if walking up a slope, while the left half of the body is stretched and relaxed, as if walking down a slope. This is called reciprocal alternating movement during walking. This is due to activation of the right and left cerebral cortices (Ponto Medullary Reticular Formation: PMRF).

[0029] As described above, with the prism glasses 1, the pair of prism lenses 11 can refract the light incident on each of them in the same direction. This changes the visual information input to the brain of the user P1 through the eyes, and changes the user P1's spatial perception, thereby adjusting the effect of the visual information on the brain and body of the user P1. This point will be described in detail below.

[0030] Generally, humans determine their position using visual information, vestibular sensation, and somatic sensation. Therefore, various visual information influences the cerebral cortex, causing changes in the body's postural function. Furthermore, by changing visual information and changing spatial perception, it is possible to change biased postural sensation toward the normal postural sensation that should be present.

[0031] In other words, input information perceived as visual information displaces the external space input through vision, which is expected to unconsciously change the body posture as output information.

[0032] For example, in a case where a patient with strabismus complains of lower back pain while walking, an analysis of the patient's walking movements divided into gait cycles confirmed that compensatory movements are reduced when wearing prism lenses 11. In this case, compensatory movements refer to movements such as changes in posture that are made to compensate for the strabismus.

[0033] Until now, when dealing with functional abnormalities seen in walking movements, exercise instructors and therapists have focused primarily on correcting abnormalities in walking movements as muscle output, and have focused on improving muscle strength.

[0034] However, gait control involves not only muscle strength but also visual, vestibular, and somatic information. Furthermore, it has been confirmed in recent years that visual information is utilized to the fullest extent not only in the body control system that enables ideal movements, but also in the function that proactively addresses disruptions in the movement patterns of the body control system that are repeated repeatedly. For this reason, an approach that uses prism lenses 11 to change spatial cognitive function in patients with strabismus is expected to be extremely effective.

[0035] Furthermore, ensuring smooth eye movement suppresses tension in the suboccipital muscles. For this reason, it is important to be able to separate and independently control eye movement and head movement. By using prism lenses 11, such as the prism eyeglasses 1 of the present invention, and minimizing the load on the eyeballs, it is expected that proper eye alignment can be ensured. Here, eye alignment refers to the position of the eyeballs within the eye sockets.

[0036] Furthermore, tension during walking can be seen as a compensatory action by the body to obtain visual information in addition to grounding and ground awareness. In other words, separating eye movement from head (orbital) movement can reduce the sacrifice of other sensory organs and the muscle tension of extensor muscles in order to obtain vision.

[0037] Furthermore, when using the base left prism 11A as in the prism glasses 1 in Figure 2, the user is made to repeatedly learn the action of reaching out to the target by utilizing the space that moves to the right along with the target. This allows the user P1 to change the space that he or she is unable to perceive due to injury, illness, etc., using the prism lens 11, which can lead to improvements in various actions in daily life.

[0038] Specifically, patients with hemispatial neglect due to brain damage lose the ability to recognize half of their visual field, significantly impairing their quality of life. This inability to recognize half of their visual field significantly impacts their ability to walk and move. Using Prism Lenses 11 for hemispatial neglect due to brain damage can help improve the client's quality of life.

[0039] Additionally, the unconscious position of the tongue in the mouth is linked to eye alignment due to simultaneous firing by the brainstem. This allows the prism lens 11 to change the tongue position.

[0040] In the case of the base left prism 11A, the user's tongue will be shifted to the right side.

[0041] Next, the base light prism eyeglasses 1 will be described with reference to Fig. 3. In the following explanation, the same configurations and effects as those described above will not be described again. Fig. 3 is a diagram showing the refraction of incident light in prism eyeglasses 1 that use prism lenses with a base on the right side of the eyeglasses.

[0042] 3, the pair of prism lenses 11 in the prism glasses 1 increase in thickness from the left to the right as seen by the user P1 when used by the user P1. Such prism lenses 11 are called base light prisms 11B.

[0043] In the case of the base light prism 11B, the visual information of the user P1 is input in a state where it has shifted to the left of the actual space, which can promote the rotational movement of the eyeballs to the left.

[0044] Furthermore, when user P1 walks, weight is shifted to the left side. This causes the left half of the body to bend and tense, as if walking up a slope, while the right half of the body is stretched and relaxed, as if walking down a slope. This is due to activation of the right cerebral cortex, which is opposite to the left side.

[0045] As explained above, when using the base light prism 11B as in the prism glasses 1 shown in Figure 3, the subject is made to repeatedly learn the act of reaching out to the target by utilizing the space that moves to the left along with the target. This allows the prism lens 11 to change the spatial bias that the subject is no longer able to recognize, leading to improvements in various actions in daily life.

[0046] In humans, the right peripheral vision is naturally dominant over the left peripheral vision. This is related to the right center of gravity and the fact that the left cerebral cortex is more active than the right cerebral cortex.

[0047] Furthermore, in the case of the base light prism 11B, the tongue of the user P1 will be shifted to the left side.

[0048] The direction of movement of the field of view by the prism glasses 1 is not limited to left and right.

[0049] Fig. 4 is a diagram showing an example of base-down prism eyeglasses 1, with the lower side of the prism lens as the base. Note that in the following explanation, explanations of the same configurations and effects as those explained above will be omitted. Fig. 4 is a diagram showing the refraction of incident light in prism eyeglasses 1.

[0050] The pair of prism lenses 11 in the prism eyeglasses 1 shown in Fig. 4 are thicker from top to bottom. Such prism lenses 11 are called base-down prisms 11C.

[0051] In the case of the base-down prism 11C, the visual information of the user P1 is input in a state where it is moved upward from the actual space. This promotes upward eye movement. Also, the position of the head of the user P1's body moves backward. Furthermore, heel strike and flexion of the flexor muscles are promoted when walking.

[0052] As explained above, the prism glasses 1 shown in Figure 4 can suppress forward head posture, in which the head is tilted forward and the neck is tilted, thereby suppressing forward head position of the head and neck and reducing strain on the neck.

[0053] For example, if the neck is tilted so that the head is positioned 10 cm forward from the neutral position, the strain on the neck increases by approximately 10 kg. This makes it impossible to maintain neutrality (proper posture) in the neck, leading to neck pain, stiff shoulders, and obstructed blood flow in the carotid arteries, reducing blood flow to the brain.

[0054] This makes it difficult to maintain continuous blood circulation, making people more susceptible to drowsiness and fatigue. Forward head positioning also has a significant impact on respiratory function, so eliminating this is extremely important for maintaining eye and neck function. Base-down prism 11C can be used to maintain these functions.

[0055] In addition, the use of spatial cognitive therapy with the base-down prism 11C is expected to be effective in preventing modern diseases. When the eyes are rotated downward, or when the eyes are facing downward, such as when the head is forward or prone, it causes an increase in intraocular pressure, which leads to the elongation of the eye axis.

[0056] The base-down prism 11C supports the upward movement of the eyeball and prevents the eye axis from elongating, creating an environment that is less likely to lead to myopia.

[0057] With the influence of digital devices such as smartphones, we now often view objects up close, and our eyes tend to rotate downward. It has been reported that downward rotation of the eyeballs may hinder occlusal movements, particularly the proper development of the maxilla. Therefore, using the base-down prism 11C is expected to promote upward rotation of the eyeballs and promote proper maxillary development.

[0058] In general, most postures when looking at digital devices involve downward eye movement. Downward eye movement refers to the downward rotation of the eyeball within the eye socket. When the eyeball is downward moved, a small amount of space is created at the back of the eye socket. If intraocular pressure increases with this space created (due to stimulation from digital devices), the eye axis may elongate, potentially causing the eyeball to become myopic.

[0059] Generally, when the human eye looks at an object closer than 6 meters, the crystalline lens accommodates the object, lengthening the anterior-posterior axis of the crystalline lens. The anterior-posterior axis of the crystalline lens refers to the thickness of the central part of the crystalline lens in the anterior-posterior direction, where the crystalline lens is at its thickest.

[0060] This obstructs the flow of aqueous humor and increases intraocular pressure. Furthermore, downward rotation of the eyeball is also a cause of forward head position, and if this posture continues, the strain on the internal carotid artery will obstruct blood flow to the eyeball, and the worst-case combination of reduced blood flow and increased intraocular pressure can lead to glaucoma, which, if progressed, can lead to blindness.

[0061] To address this issue, the base-down prism 11C, which moves the eyeball upward and suppresses forward head position, is expected to be effective.

[0062] Additionally, increased intraocular pressure is a concern when working at a desk using a smartphone or computer. By prescribing base-down prism 11C, the horizontal reference line in space can be raised. This suppresses the increase in intraocular pressure caused by downward rotation of the eyeball and the eyeball itself pointing downward, and is expected to protect the eye's function from eye diseases such as glaucoma.

[0063] Furthermore, with the base-down prism 11C, user P1's tongue will be positioned higher. Tongue and eye movement are related, and in this case, by rolling the eyes upward, the tongue will unconsciously be more likely to touch the palate inside the mouth. This will result in the tongue being positioned more appropriately in the mouth, leading to an approach that shifts breathing from mouth to nose. This is expected to stabilize trunk and lower limb muscle strength, improve forward head positioning, and eliminate sleep apnea syndrome caused by low tongue position.

[0064] In addition, the Base Down Prism 11C can be used to adjust the autonomic nervous system unconsciously.

[0065] Modern people often use their eyes in a downward movement of the eyeballs. The downward movement of the eyeballs is controlled by the trochlear nerve and the oculomotor nerve. Of these, the trochlear nerve, which is the more dominant of the four cranial nerves, is controlled by the sympathetic nervous system, so the sympathetic nervous system is always overactive when the eyeballs are downward moved.

[0066] In contrast, the Base Down Prism 11C supports upward eye movement. The upward eye movement is controlled by the oculomotor nerve of the third cranial nerve, which is innervated by the parasympathetic nervous system. Therefore, upward eye movement can be expected to have the effect of increasing parasympathetic nervous activity.

[0067] In addition, the Base Down Prism 11C can be used to unconsciously support the proper positioning of the tongue. In other words, by moving the eyes upward, the tongue is displaced upward so that it touches the palate. When the tongue is in this position, people unconsciously promote nasal breathing, which causes the parasympathetic nervous system to become dominant.

[0068] In addition, the frontal lobe of the brain consumes more oxygen when breathing through the mouth than when breathing through the nose, and its activity is not at rest. Conversely, breathing through the nose can reduce the number of breaths, further increasing the effect of parasympathetic dominance.

[0069] In addition, using the base-down prism 11C to favor flexion of the flexor muscles is expected to have the effect of suppressing tension in the posterior mediastinum. Because the posterior mediastinum is a collection of sympathetic ganglia, suppressing tension in the posterior mediastinum is expected to have the effect of promoting inspiration during breathing.

[0070] The three effects mentioned above - upward eye movement, change in tongue position, and suppression of posterior mediastinum tension - can be expected to have a very significant effect on balancing the autonomic nervous system by shifting from a state where the sympathetic nervous system is always dominant, which is characteristic of modern people, to a state where the parasympathetic nervous system is dominant.

[0071] Next, the prism glasses 1 will be described with reference to Fig. 5. Fig. 5 is a diagram showing how incident light is refracted in the prism glasses 1 that use prism lenses with the upper side of the glasses as the base.

[0072] The pair of prism lenses 11 in the prism eyeglasses 1 shown in Fig. 5 are thicker from bottom to top. Such prism lenses 11 are called base-up prisms 11D.

[0073] In the case of the base-up prism 11D, the visual information of the user P1 is input in a state where it is moved lower than the actual space. This promotes downward eye movement. Also, the position of the head of the user P1's body moves forward. Furthermore, when walking, the heel contact is suppressed and the stretching of the extensor muscles is promoted.

[0074] In the case of the base-up prism 11D, the tongue of the user P1 will be positioned downward. There is a relationship between tongue and eye movement, which can lead to excessive tension in the lower limb muscles, potentially disrupting a stable state. One example of a situation where this effect can be expected is when a person who has difficulty stretching their extensor muscles uses the prism selectively during sports, etc.

[0075] By using prism glasses 1 in which prism lenses are fitted into the eyeglass frame in this way, the user's line of sight can be guided according to the direction of the lens base. Therefore, by regularly wearing prism glasses 1, the user's posture can be naturally corrected to the user's desired direction, or movement in that direction can be made easier.

[0076] However, as mentioned above, because prism lenses can shift the scenery seen by the user by uniformly changing the thickness from one end to the other, there is a problem that they can only shift the scenery in one direction and can only correct the user's posture in one direction. Therefore, there is a demand for a simpler, more flexible configuration that can naturally guide the user's line of sight, thereby improving the ease of correcting posture and changing posture.

[0077] Next, we will explain eyeglasses that use an area dividing member 160 that divides the lens surface into two areas. The area dividing member 160 divides the lens surface into two areas to guide the user's line of sight. Specifically, the lenses of the eyeglasses are provided with a long, thin, flat member. This will be explained in detail using the drawings.

[0078] Fig. 6(a) is a perspective view showing the appearance of eyeglasses 2 provided with area dividing members. Fig. 6(b) shows the eyeglasses 2 worn by a user. Figs. 7(a) and 7(b) are front views of eyeglasses 2.

[0079] As shown in FIG. 6, the glasses 2 are different in that the lenses 131 are provided with an area dividing member 160 .

[0080] More specifically, as shown in FIG. 6(a), the eyeglasses 2 are eyeglasses consisting of a frame and lenses 131. The frame includes a bridge 136, a front portion 132 connected by the bridge 136 and sandwiching the lenses 131, temples 133 extending from the front portion 132, end pieces 134 attached to the tips of the temples, and nose pads 135 attached to the front portion 132 and supporting the prism lens eyeglasses by contacting the wearer's nose. The bridge 136, front portion 132, temples 133, and end pieces 134 of the eyeglasses 2 function as a mounting member. In other words, the eyeglass frame of the eyeglasses 2 functions as a mounting member for mounting the eyeglasses 2 on the wearer's head. The frame around the lenses 131 of the eyeglasses 2 is sometimes called a rim.

[0081] As shown in FIGS. 6(a) and 6(b) and 7(a) and 7(b), the region dividing member 160 divides the lens 131 into two regions in the vertical direction. That is, as shown in FIG. 7(b), the region dividing member 160 divides the lens 131 into an upper region 161 and a lower region 162. The region dividing member 160 is a member for dividing the user's visual space into upper and lower regions. The presence of the region dividing member 160 enables the eyeglasses 2 to correct the user's eye movement habits (e.g., many users nowadays roll their eyes downward to check the screens of smartphones, mobile devices, tablet devices, etc., but the region dividing member 160 can help the user to develop the habit of rolling their eyes upward). The region dividing member 160 can also provide favorable stimulation or inhibition to the nervous system and ocular reflexes by utilizing the user's posture and eye movement. The region dividing member 160 is connected to the left and right portions of each of the left and right rims of the eyeglasses 2 and divides the rims into two regions in the vertical direction.

[0082] The area dividing member 160 is located below the center of the lens 131 in the up-down direction. That is, the area dividing member 160 divides the lens 131 so that the upper area 161 has a larger area than the lower area 162. As shown in FIG. 6( a), the area dividing member 160 may be configured as part of the front part 132 on the front side of the lens 131 (the side opposite the user when the eyeglasses 2 are worn by the user) so as to cover the lens 131. Note that FIG. 6( a) shows an example in which the area dividing member 160 is provided on the front side of the lens 131 (the side opposite the user when the eyeglasses 2 are worn by the user), but it may also be provided on the back side of the lens 131 (the side facing the user when the eyeglasses 2 are worn by the user).

[0083] Alternatively, the area dividing member 160 may be one that divides the lens 131 visually, or may be one that physically divides the lens 131. That is, the shape of the frame may be the same as that shown in Fig. 6(a), but the lenses may be realized in a manner in which lenses that match the size of each area are fitted into two upper areas 161 and two lower areas 162 of the frame. That is, two lenses (a total of four lenses on the left and right) may be fitted into the glasses.

[0084] Alternatively, region dividing member 160 may be realized as a sticker-like member attached to eyeglass lens 131, as shown in Fig. 6. Region dividing member 160 does not have to be colorless and transparent, and may be any member that can be recognized by the user. Furthermore, region dividing member 160 need not be connected from one end to the other end of the lens, as long as the user can recognize that it divides the eyeglass lens into two regions.

[0085] As shown in FIGS. 7( a) and 7(b), the area dividing member 160 must have a width h greater than or equal to a predetermined value to allow the user to recognize that their field of view is divided by the front portion 132 of the eyeglasses and the area dividing member 160. If the width is too narrow and too close to the user's eyes, the user may not be able to recognize it. On the other hand, the width h should not be too narrow to prevent the user from seeing things. The area dividing member 160 divides the lens 131 of the eyeglasses 2 into two areas, prompting the user to unconsciously select one of the areas and view objects through the selected area. Therefore, the area dividing member 160 must be thick enough to allow the user to recognize its presence, yet thin enough not to obstruct the user's view. For example, the vertical width h of the area dividing member 160 may be 3 to 4 mm, but this may be increased or decreased depending on the individual user's needs. Furthermore, if a width of 3 to 4 mm is bothersome and stressful for some users, a shorter width, such as 2 mm, may be used. On the other hand, although a width of 2 mm or less may be unnoticeable to some users, a member having a length of 2 mm or more in any direction can be recognized by the user as the region dividing member 160a. That is, even if the width h shown in the figure is 1 mm and the length is 2 mm or more, for example, 4 mm, the region dividing member 160a may be recognized by the user and may provide the user with the posture correcting effect of the region dividing member. Furthermore, if the width or length of the region dividing member 160 is 2 mm or less, it may not be consciously recognized by the user, but it may be unconsciously recognized by the optic nerve and brain, which may encourage posture correction. Therefore, the width h of the region dividing member 160 may be 1 to 5 mm, although it can be increased or decreased depending on the user. Furthermore, it may be 1 mm or less as long as it is recognizable to the user.

[0086] Next, the effect that the eyeglasses 2 have on the user will be explained with reference to FIG. 8. FIG. 8(a) is a side view that schematically shows the line of sight when a user is wearing regular eyeglasses 1L. As shown in FIG. 8(a), a user who wears eyeglasses with frames (even when frames are not present, the outer edges of the lenses serve as frames) generally looks at objects by looking at the center of the lenses. That is, as shown in FIG. 8(a), the user looks at objects (obtains visual information) by aligning their line of sight G1 through the vertical center C1 of the eyeglasses 1L.

[0087] On the other hand, FIG. 8(b) is a side view schematically illustrating the relationship between the user's line of sight G2 and the eyeglasses 2 when the user wears the eyeglasses 2 equipped with the area dividing member 160. The eyeglasses 2 shown in FIG. 8(b) are equipped with an area dividing member 160 that extends in the left-right direction relative to the lens 131 so as to divide the lens 131 into two areas, upper and lower, as shown in this drawing and FIG. 7(b). As shown in FIG. 8(b), when the area dividing member 160 is present, the user tries to view an object so that the area dividing member 160 is as far out of the user's field of view as possible, since the user wants to avoid foreign objects in their field of view as much as possible. As a result, the user unconsciously (or consciously) looks at the center of the upper area 161, which is wider than the lower area 162 shown in FIG. 7(b), in order to obtain more visual information, i.e., a wider range of visual information. Therefore, the user looks at an object so that their line of sight G2 passes through at least the vertical center C2 of the upper area 161, as shown in FIG. 8(b).

[0088] FIG. 8(b) also shows the user's line of sight G1 in the absence of the area dividing member 160. Comparing line of sight G1 and line of sight G2 makes it clear that when the area dividing member 160 is present, the user's line of sight is directed upward because the user obtains visual information through the upper area 161. In other words, when the area dividing member 160 is present in the glasses 2, the user's eyes can be encouraged to roll upward, compared to when the area dividing member 160 is not present in the glasses 2. As a result, the amount of visual information obtained by line of sight G2 is less on the lower side of the line of sight than when the area dividing member 160 is not present. As a result, the user naturally tucks their chin in to obtain more information on the lower side of the line of sight.

[0089] In FIG. 8, an example is described in which the lens 131 is divided in the vertical direction, i.e., the region dividing member 160 extends in the left-right direction relative to the lens 131, in order to make the user's line of sight easier to understand. However, the position (extension direction) of the region dividing member 160 is not limited to the example in FIG. 8. The region dividing member 160 may divide the lens 131 in the horizontal direction, i.e., the region dividing member 160 may extend in the vertical direction relative to the lens 131. In this case, the lens 131 may be a base right lens or a base left lens. Furthermore, in the examples in FIGS. 6 to 8, the region dividing member 160 is disposed near the bottom of the eyeglass frame, but it may also be disposed near the top. The position can be changed depending on which direction the user's eyeballs are desired to rotate more easily and, therefore, how the user's posture is desired to be normalized. The strength of the correction varies depending on the position of the area dividing member 160; the closer to the center of the lens, the more the user moves their line of sight, and as a result, the strength of the posture correction provided by the area dividing member 160 can be increased.

[0090] It should be noted that the lenses 131 are not an essential component of the glasses 2. The glasses 2 do not necessarily have to include the lenses 131. The lenses 131 may be lenses for vision correction, non-prescription lenses for fashion, transparent colored lenses, lenses used for eye protection (e.g., blue light lenses), or lenses for cosmetic purposes (e.g., skin-beautifying lenses that improve the appearance seen through the lenses). In the case of lenses for vision correction, the focal position of the lenses may be adjusted to be in the upper region 161.

[0091] 8 shows an example in which the lens 131 is divided into upper and lower halves using the area dividing member 160, but the area dividing member 160 may be provided so as to extend in a different direction from the direction in which the thickness of the lens 131 does not change (in the case of FIG. 8, the up-down direction on the page), and may be provided obliquely, for example. In other words, the area dividing member 160 may be provided at a predetermined angle (1 degree or more) from the direction in which the thickness of the lens 131 does not change, and this angle may be an angle that corresponds to the effect that the user desires to achieve through the action of the area dividing member 160.

[0092] Furthermore, the shape of the eyeglasses 2 is not limited to that shown in Fig. 6. The eyeglasses may have a variety of shapes.

[0093] For example, FIG. 9(a) is a diagram showing an example of a frame shape that can be used for eyeglasses 2. As shown in FIG. 9(a), eyeglasses 2 are eyeglasses in which an area dividing member 160 is provided on a frame shaped by removing the upper rim from the frame. Furthermore, eyeglasses 2 may be eyeglasses with a round frame as shown in FIG. 9(b), or eyeglasses with a square frame as shown in FIG. 9(c). In either shape, the eyeglass frame will have an area dividing member 160 (posture correcting member) provided below the center of the rim in the vertical direction.

[0094] Furthermore, in the above description, the area dividing member 160 is formed so as to connect the left and right sides of the rim. However, the area dividing member 160 may also be formed so as to connect the top and bottom of the rim. That is, the area dividing member 160 may divide the area surrounded by the rim (lens 131) into left and right areas rather than top and bottom. In this case, the division may be performed on the same side of the left and right lenses, as in the up and down direction, or the division location may be different between the left and right lenses. That is, the vertical area dividing member 160 may make the ratio of the right area to the left area of the left and right lenses 131 the same, or vice versa. Therefore, when using a vertical area dividing member 160, the area dividing member 160 may be provided so that the right area of the left and right lenses is narrow and the left area is wide. Alternatively, the area dividing member 160 may be provided so that the right area of the right lens is narrow and the left area is wide, while the area dividing member 160 may be provided so that the right area of the left lens is wide and the right area is narrow. Conversely, the area dividing member 160 may be provided so that the right area of the right lens is wider and the left area is narrower, while the area dividing member 160 may be provided so that the right area of the left lens is narrower and the right area is wider. When using such glasses 2, it is possible to correct the head orientation of a user who has a habit of turning their head to one side or the other, or to correct the eye orientation of a user with strabismus who looks in different directions left and right.

[0095] Furthermore, the area dividing member 160 may divide the rim of the eyeglasses 2 into at least two sections in the vertical direction. Alternatively, two or more area dividing members 160 may be provided in parallel to divide the rim into three or more sections in the vertical direction. The area dividing member 160 also has the secondary effect of providing a reference line within the user's field of vision. Therefore, for example, when a user wearing the eyeglasses 2 plays a sport such as golf, the area dividing member 160 can be used to determine whether the user's stroke is performed with the correct posture, or as a reference for the position where the ball and club should pass when hitting a shot. Furthermore, when two or more area dividing members 160 are provided, different area dividing members 160 can be used as reference lines depending on the golf club used when hitting a shot. That is, golf clubs vary in length depending on the type, and therefore the positional relationship between the user's viewpoint and the golf club when hitting a shot varies. Therefore, it is not always possible to use the same area dividing member 160 as a reference line when hitting all shots, but by providing multiple area dividing members 160, the glasses 2 can provide reference lines corresponding to multiple clubs with a single pair of glasses 2.

[0096] Furthermore, while the above description illustrates an example in which the user consciously uses the area dividing member 160 as a reference line, it can also be said that the area dividing member 160 induces an unconscious eye reaction. The eyeballs restrict movement toward the reference line in the peripheral visual field, unconsciously favoring movement in the opposite direction. That is, when the area dividing member 160 is configured to extend left and right, if the reference line is positioned upward, the user can be encouraged to roll the eyes downward and extend the cervical spine. Furthermore, when the area dividing member 160 is configured to extend left and right, if the reference line is positioned downward, the user can be encouraged to roll the eyes upward and flex the cervical spine. On the other hand, when the area dividing member 160 is configured to extend up and down, if the reference line is positioned to the right, the user will adduct the right eye, abduct the left eye, and rotate the cervical spine left to avoid the area dividing member, thereby avoiding the blind spot of the dividing member and choosing to fit into an open space. Furthermore, when the area dividing member 160 is configured to extend vertically, if the reference line is located on the left side, the right eyeball is abducted, the left eyeball is adducted, and the cervical vertebrae rotate right to avoid the area dividing member, thereby avoiding the blind spot of the dividing member and making a selection to fit into the open space. Furthermore, when the area dividing member 160 is provided on both ends of the outer side of the rim of the eyeglasses 2 in both cases of extending vertically, both eyes can be adducted and muscle tone of the shoulder joint can be promoted (by restricting abduction, external rotation, extension, horizontal external rotation, and horizontal extension). Furthermore, when the area dividing member 160 is provided on the inner side of the rim of the face-worn device F in both cases of extending vertically, both eyes can be abducted and muscle tone of the shoulder joint can be suppressed (by restricting adduction, internal rotation, flexion, horizontal internal rotation, and horizontal flexion). These movements are not prompted by the user's awareness of the reference line, but are largely influenced by the visual system, which unconsciously recognizes them as visual information.

[0097] In the golf example mentioned above, the inventors have found that the presence or absence of the area dividing member 160 (reference line) changes the user's center of gravity and the way the user perceives space when in stance at address. When the area dividing member 160 extends left and right and is positioned lower, cervical flexion is encouraged, but the center of gravity position moves forward compared to when the area dividing member 160 is not present, making the user feel closer to the ball. Conversely, when the area dividing member 160 is positioned higher, cervical extension is encouraged, but the center of gravity position moves backward, making the user feel farther away from the ball.

[0098] Furthermore, when the area dividing member 160 is extended vertically and located to the right of the rim, the left field of view becomes dominant. This is effective for reproducing the performance of players who rotate their face (abduct their left eyeball / adduce their right eyeball) at the top position of the club trajectory, catch the ball with their left peripheral vision, and seek a deep take-back. When the area dividing member 160 is extended vertically and located to the left of the rim, the right field of view becomes dominant. This is effective for reproducing the performance of players who do not rotate their face at the top position of the club trajectory, catch the ball with their right peripheral vision, and seek a shallow take-back. Therefore, using the glasses 2 can provide unconscious guidance to the user and contribute to improving the user's (player's) performance. This can be attributed to the fact that humans unconsciously sense limitations in their peripheral vision in order to ensure their field of view (line of sight) in visual information, and this is an unconscious response to acquire a field of view (line of sight) in visual space.

[0099] Furthermore, the region dividing member 160 only needs to allow the user to recognize that the user's field of view is divided into two vertically. That is, rather than simply installing a component that allows the user to recognize the existence of a boundary, the region dividing member 160 may be realized by color-coding the lens 131 in two vertically-oriented colors, as shown in FIG. 9(d). As an example, as shown in FIG. 9(d), the upper region 131a may be transparent black and the lower region 131b may be transparent red, and the boundary, whose color changes due to the color difference, may function as the region dividing member 160. Because the user recognizes each region based on the difference in color, they will view objects with the region dividing member 160 as the lower limit of their field of view, which may cause the user to bend their neck and roll their eyes upward, as described above. The colors used for the upper region 131a and the lower region 131b are not limited to black and red, and other color combinations may also be used. Although the lens 131 is divided into multiple regions by the combination of colors, this can also be achieved by providing easy-to-see regions and hard-to-see regions within the lens 131. This can be achieved by making the easy-to-see regions within the lens 131 a normal transparent lens and making the hard-to-see regions opaque.

[0100] Furthermore, the area dividing member 160 may be configured to be connected to the rim so as to be able to slide up and down (if the area dividing member 160 extends left and right) or left and right (if the area dividing member 160 extends up and down) relative to the rim. This allows the user to adjust the degree of posture correction obtained by the eyeglasses 2 by themselves. Furthermore, in the above embodiment, the area dividing member 160 is shown as being contained within the rim, but the area dividing member 160 may be configured to extend beyond the outer frame of the rim.

[0101] In this way, eyeglasses 2 equipped with area dividing member 160 divide the area surrounded by the frame into two areas, one large and one small, by the area dividing member 160, thereby guiding the user's gaze to look at the center of the larger area. By regularly wearing eyeglasses 2, the user's gaze will naturally and constantly be directed toward the larger of the two areas divided by area dividing member 160. As a result, the user's posture can be naturally corrected, and the user's body can more easily rotate in the direction in which the gaze is being guided.

[0102] As described above, eyeglasses 1 using prism lenses have the problem that they can only correct the user's posture in one direction. Furthermore, the area dividing member shown in Fig. 6 and other figures can only correct the user's posture in one direction because it divides the lens surface into two areas. While it is conceivable to use multiple posture-correcting members, this poses a problem in that the placement of many foreign objects on the lens surface reduces the user's visibility.

[0103] Therefore, eyeglasses 10 according to the present invention use prism lenses as lenses, and are provided with an area dividing member 160 that divides the lens surface formed by the prism lenses into at least two areas, as shown in Figure 10. The effect of the prism lenses is as explained using eyeglasses 1, and the effect of the area dividing member 160 is as explained using eyeglasses 2.

[0104] FIG. 10(a) is a front view of the eyeglasses 10, FIG. 10(b) is a cross-sectional view of the eyeglasses 10 taken along line AA, and FIG. 10(c) is a cross-sectional view of the eyeglasses 10 taken along line BB. Note that temples and end pieces are omitted from FIGS. 10(a) to 10(c). As can be seen from FIG. 10(c), the lens 131 is a base-left prism. As can be seen from FIG. 10(b), the thickness of the lens 131 does not change. That is, the thickness of the lens 131 of the eyeglasses 10 shown in FIGS. 10(a) to 10(c) does not change in the vertical direction of the page. Furthermore, the area dividing member 160 extends at an angle close to a right angle to this direction. That is, as shown in FIGS. 10(a) to 10(c), the area dividing member 160 extends in the horizontal direction of the page. Therefore, the prism lens acts on the user's eyeball in the left-right direction, whereas the area dividing member 160 acts on the user's eyeball in the up-down direction.

[0105] In the case of the glasses 10 shown in Figures 10(a) to 10(c), the thickness of the prism lens changes uniformly in the left-right direction, but the direction in which the thickness of the prism lens changes uniformly is not limited to the left-right direction.

[0106] The eyeglasses 10 shown in FIGS. 11(a) to 11(c) are an example of the configuration of eyeglasses 10 according to the present invention, using prism lenses whose thickness varies uniformly in the vertical direction. FIG. 11(a) is a front view of the eyeglasses 10, FIG. 11(b) is a cross-sectional view taken along line AA in FIG. 11(a), and FIG. 11(c) is a cross-sectional view taken along line BB in FIG. 11(a). As can be seen from FIG. 11(b), the eyeglasses 10 are equipped with base-down prism lenses 131, and as shown in FIG. 11(c), the thickness of the prism lenses 131 does not vary in the horizontal direction. Therefore, the area dividing member 160 is configured to extend at an angle of approximately 90 degrees relative to the prism lenses 131. As shown in FIG. 11, the direction in which the thickness of the prism lenses 131 varies and the direction in which the area dividing member 160 extends may be reversed compared to FIG. 10. In the case of the eyeglasses 10 shown in Figure 11, the effect of the base-down prism lens 131 makes it easier to see the lower view, making it less likely that the chin will be tucked in too far, and the effect of the area dividing member 160 makes it easier for the user to turn left, which can be said to be useful for, for example, achieving a more desirable form when addressing the ball in golf.

[0107] Note that, although Figure 11(a) shows an example in which the area dividing member 160 is disposed to the left in front view on both the left and right lenses, it is not necessary that they be disposed in the same direction on the left and right. They may be disposed in opposite directions on the left and right lenses; for example, the area dividing member 160 provided on the right lens in front view may be disposed to the right, unlike Figure 11(a). In other words, the left lens may have the area dividing member 160 disposed to the left in front view, and the right lens may have the area dividing member 160 disposed to the right in front view. With such a configuration, for example, if a user has exotropia in both their eyes, it may be possible to correct this.

[0108] Also, although FIGS. 10(a) to 10(c) and 11(a) to 11(c) show examples in which the user's line of sight is guided in the vertical and horizontal directions, this is not limitative.

[0109] The area dividing member 160 may extend in a direction intersecting at a predetermined angle (1 degree or more) with respect to the direction in which the thickness of the prism lens does not change, and may form the eyeglasses 10 as shown in Figures 12(a) to 12(d).

[0110] That is, the area dividing member 160 may be disposed at an angle to the lens surface. Figure 12(a) is a front view of the glasses 10, Figure 12(b) is a cross-sectional view taken along line AA in Figure 12(a), Figure 12(c) is a cross-sectional view taken along line CC in Figure 12(a), and Figure 12(d) is a cross-sectional view taken along line BB in Figure 12(a).

[0111] In the case of the eyeglasses 10 shown in Fig. 12, the effect of the base-down prism lens 131 makes it easier to see downward scenes, preventing the user from tucking their chin in too far, and allows the user's right eye to look to the upper left from the user's perspective, and the user's left eye to look to the lower right from the user's perspective. The eyeglasses 10 shown in Fig. 12 show an example in which the extension direction of the area dividing member 160 is not 90 degrees relative to the direction in which the thickness of the prism lens 131 does not change (the horizontal direction in Fig. 12(d)), unlike Figs. 10 and 11. As shown in Fig. 12, by setting an angle between the direction in which the thickness of the prism lens 131 does not change as the extension direction of the area dividing member 160, it is possible to define multiple directions, not just one.

[0112] Furthermore, in the eyeglasses 10, the direction in which the thickness of the prism lens 131 changes or the position of the area dividing member 160 may be configured to be symmetrical on the left and right sides of the eyeglasses 10. An example of this will be described with reference to Figs. 13 and 14.

[0113] The eyeglasses 10 shown in Figure 13 show an example in which the area dividing member 160 is arranged vertically downward of the left and right prism lenses 131, and the thickness of the prism lenses 131 is configured to be symmetrical on the left and right. Here, "vertically downward" means, for example, that the area is below the vertical center of the prism lens 131, and the arrangement position is determined depending on the degree to which the user's line of sight is desired to be guided. In other words, the area dividing member 160 is provided on the prism lens 131 so that the area of the upper area of the prism lens 131 divided by the area dividing member 160 is larger than the area of the lower area.

[0114] Fig. 13(a) is a front view of eyeglasses 10. Fig. 13(b) is a cross-sectional view taken along line AA in Fig. 13(a). Fig. 13(c) is a cross-sectional view taken along line CC in Fig. 13(a). Fig. 13(d) is a cross-sectional view taken along line BB in Fig. 13(a), and Fig. 13(e) is a cross-sectional view taken along line DD in Fig. 13(a).

[0115] As shown in FIGS. 13(b) and 13(c), in the eyeglasses 10 shown in FIG. 13(a), the thickness of the prism lenses 131 is constant in the vertical direction. On the other hand, as shown in FIGS. 13(d) and 13(e), the thickness of the prism lenses 131 varies in the horizontal direction. That is, in the eyeglasses 10 shown in FIG. 13(a), the thickness of the prism lenses 131 is configured so that the inner edge side in the horizontal direction is thicker than the outer edge side. More specifically, in the eyeglasses 10 shown in FIG. 13(a), the left and right prism lenses 131 are configured so that the inner edge side in the horizontal direction is thicker than the outer edge side. This makes it easier for the right eye of a user wearing the eyeglasses 10 to see scenery on the left side relative to the right eye, and easier for the left eye to see scenery on the right side relative to the left eye. As a result, it may be possible to correct the eyes of users who are prone to cross-eyedness.

[0116] 13 shows an example of a base-in prism in which the thickness of the prism lens is thicker on the inner edge than on the outer edge, but this may also be the case with a base-out prism in which the thickness of the prism lens in the left-right direction is thicker on the outer edge of the eyeglasses 10 than on the inner edge. In this case, a user wearing eyeglasses 10 will find that scenery on the right side is more likely to enter their right eye, and scenery on the left side is more likely to enter their left eye. As a result, the user will be able to easily see a wide range of scenery in both directions in front of them, and this is expected to have the effect of improving the user's concentration.

[0117] 13(a), an area dividing member 160 is provided on each of the left and right prism lenses 131 of the eyeglasses 10, near the bottom in the vertical direction of the prism lens 131. This guides the user's line of sight upward, encouraging the user to tilt their head upward.

[0118] Figure 14 shows an example of eyeglasses 10 in a different form from that shown in Figure 13. Figure 14 shows an example of eyeglasses 10 in which the thickness of prism lens 131 changes in the same direction on both the left and right, i.e., in the up-down direction, and the position of area dividing member 160 relative to prism lens 131 is symmetrical on the left and right.

[0119] Fig. 14(a) is a front view of eyeglasses 10. Fig. 14(b) is a cross-sectional view taken from the right side of line AA in Fig. 14(a). Fig. 14(c) is a cross-sectional view taken from the right side of line CC in Fig. 14(a). Fig. 14(d) is a cross-sectional view taken from line BB in Fig. 14(a), and Fig. 14(e) is a cross-sectional view taken from line DD in Fig. 14(a).

[0120] As shown in Figures 14(b) and 14(c), the prism lenses 131 of the eyeglasses 10 shown in Figure 14(a) are configured so that their thickness varies in the vertical direction of the eyeglasses 10, with the lower lenses being thicker than the upper lenses. This configuration therefore encourages the user's eyes to rotate upward. This causes the user's head to be positioned further back than when the eyeglasses 10 are not being used.

[0121] On the other hand, the area dividing member 160 is provided on the outer edge side of the prism lens 131, as shown in FIGS. 14( a), 14(d), and 14(e). That is, as shown in FIG. 14(a), the area dividing member 160 is provided to the right of the right prism lens 131 in a front view, and to the left of the left prism lens 131 in a front view. Here, "to the right" or "to the left" means that the area dividing member 160 is at least to the right or left when viewed from the center of the prism lens 131, and the position of the area dividing member 160 is determined depending on the strength at which the user's line of sight is to be guided. Therefore, from the user's perspective, the area dividing member 160 is provided to the right of the right eye and to the left of the left eye. In other words, from the user's perspective, the area dividing member 160 appears to be sandwiched between the area dividing members 160 on the left and right, which is expected to have a blinker effect and improve the user's ability to concentrate.

[0122] In this way, the eyeglasses 10 of this embodiment are configured so that the direction in which the thickness of the prism lens 131 changes intersects with the direction in which the area dividing member 160 extends, and by devising the direction in which the thickness of the prism lens 131 changes and the position of the area dividing member 160, various effects are expected to be achieved for the user of the eyeglasses 10.

[0123] (supplement) The eyeglasses 10 shown in the above embodiment merely represent one aspect of the eyeglasses according to the present invention. As long as the eyeglasses are configured to include a prism lens and an area dividing member as shown in the above embodiment, they are not limited to the aspect supported by the above embodiment. Various modifications will be described below.

[0124] (1) The prism lenses 11, 131 shown in the above embodiment (hereinafter, in this modification, simply referred to as prism lenses) may be colorless and transparent, or may be colored and transparent. For example, if the prism lenses are red and transparent, it is expected that the sympathetic nerves of the user P1 (see FIG. 2) will be dominant over the parasympathetic nerves, thereby promoting the secretion of adrenaline.

[0125] Furthermore, this secretion of adrenaline can increase the pulse rate and breathing rate of the user P1, which is expected to have the effect of raising the perceived body temperature and increasing blood flow. For this reason, it is recommended for those who feel cold, want more energy and confidence, or want to activate their energy.

[0126] Furthermore, for example, if the prism lenses are yellow and transparent, it will stimulate the left brain of the user P1 and improve mental agility, which will lead to positive thinking and improve communication skills, and is recommended, for example, when speaking in public.

[0127] Furthermore, it is expected to have the effect of stimulating the digestive system, such as increasing appetite, because it acts on the endocrine system and promotes the secretion of growth hormone.

[0128] For example, if the prism lenses are made green transparent, they will be an intermediate color between warm and cool colors, and will provide a sense of calm and security due to the less stimulating effect. Green has also long been considered to have a resting effect on the eyes, and gazing forward through green transparent prism lenses is expected to reduce fatigue.

[0129] For example, if the prism lenses are made blue and transparent, it is expected that the parasympathetic nervous system will be dominant and nerve excitement will be calmed. This is expected to lower blood pressure, pulse rate, and body temperature, and relax the mind and body. It is recommended for those who suffer from insomnia, or who want to improve their ability to make calm judgments and observations and face things carefully.

[0130] For example, pink transparent prism lenses are expected to promote the secretion of female hormones, and are therefore recommended for those who want to feel more feminine, are in love, or are suffering from gynecological problems.

[0131] For example, if the prism lenses are made purple and transparent, they are a mixture of two very different colors, red and blue, and have the power to improve healing and intuition, so are recommended when you are in a state of mental conflict.

[0132] In this way, by making the lenses colored and transparent, it is possible to provide effects other than guiding the line of sight and correcting posture.

[0133] (2) In the above embodiment, an example was shown in which the area dividing member was formed as part of the frame, but the area dividing member may be any member that essentially divides the eyeglass lens into two or more areas, that extends from one part of the frame to another, and that is long enough for the user to recognize its presence even if it is not connected to the frames. Furthermore, the area dividing member may be configured to be detachable from the lens rather than being configured as part of the eyeglass frame. This will be specifically described using the drawings.

[0134] This modified example provides eyeglasses 10 with a different configuration from the above embodiment. The concept of eyeglasses 10 is similar to that of eyeglasses 10 shown in the above embodiment. However, in the above embodiment, area dividing member 160 divides the lens surface into two areas, upper and lower, and the area dividing member 160 is positioned toward the lower side of the lens surface, which has the effect of rolling the eyeball upward and tucking the chin. From the perspective of posture correction, eyeglasses 10 shown in the above embodiment have two-way effects due to the effects of both the prism lens and area dividing member 160.

[0135] FIG. 15(a) shows eyeglasses 10 according to this modification with region dividing member 160a attached. FIG. 15(b) shows eyeglasses 10 according to this modification without region dividing member 160a attached. The basic configuration of eyeglasses 10 is similar to that of eyeglasses 2 and eyeglasses 10 according to the above-described embodiment, so a detailed description will be omitted. Instead, only the configuration unique to this modification will be described. As mentioned above and as shown in FIG. 15(a), region dividing member 160 does not need to completely divide the region (lens surface). It is sufficient for the length to be such that the user can generally recognize the region as being divided, and it does not need to be connected from rim to rim of the frame. Furthermore, the width of region dividing member 160 does not need to be uniform.

[0136] As shown in FIG. 15(b), the lens 131 has perforations 231a, 231b, 231c, and 231d. As shown in the figure, the perforation 231a is a hole provided near the top of the lens 131 and is provided for attaching the area dividing member 160a near the top of the lens 131. In this case, the area defined by the rim of the eyeglasses 10 is divided in the up-down direction. The perforation 231b is a hole provided near the right of the lens 131 and is provided for attaching the area dividing member 160a near the right of the lens 131. In this case, the area defined by the rim of the eyeglasses 10 is divided in the left-right direction. The perforation 231c is a hole provided near the bottom of the lens 131 and is provided for attaching the area dividing member 160a near the bottom of the lens 131. In this case, the area defined by the rim of the eyeglasses 10 is divided in the up-down direction. Perforation 231d is a hole provided at a position closer to the left of lens 131, and is provided for attaching area dividing member 160a to the left of lens 131. In this case, the area defined by the rim of eyeglasses 10 is divided in the left-right direction.

[0137] FIG. 15(d) is a longitudinal cross-sectional view of the lens 131 shown in FIG. 15(b) when the lens 131 is vertically divided at the perforation 231a. As shown in FIG. 15(d), the lens 131 is provided with perforations 231a and 231c. FIG. 15(d) is a cross-sectional view of the lens 131 when the area dividing member 160a is not attached. On the other hand, FIG. 15(c) is a longitudinal cross-sectional view of the lens 131 when the area dividing member 160a is attached to the perforation 231c when the lens 131 is vertically divided at the perforation 231a. FIGS. 15(c) and 15(d) are cross-sectional views of the eyeglasses 10 as viewed from the right side in the state shown in FIG. 15(a). However, the perforations may be provided on the inside (user side) of the lens 131. In that case, FIGS. 15(c) and 15(d) are cross-sectional views of the eyeglasses 10 as viewed from the left side in the state shown in FIG. 15(a).

[0138] In this modification, the perforations do not penetrate the lens 131, but the perforations may be formed as through-holes as shown in FIG. 15(e). In this case, a convex portion 241 provided on an area dividing member 160a (described later) may be configured to be longer than the through-hole and configured to be locked from the opposite side of the lens 131 by a locking member 160b. In other words, the area dividing member 160a and the locking member 160b have a relationship similar to that of a bolt and a nut, and the area dividing member 160a can be prevented from easily coming off the lens 131. There are various locking methods, and the locking may be by screwing or by fitting.

[0139] Each of the perforations 231a-231d needs only to be able to attach the region dividing member 160a, but if the size is too large, it will be recognized by the user and will function as a region dividing member, so it is preferable that it is not too large. Specifically, it is desirable that the diameter of the perforations 231a-231d be 1.5 mm or less. Although there are individual differences, the inventors confirmed through experiments that if the diameter of the perforations 231a-231d is 2 mm or more, it will be recognized by the user, and concluded that it is preferable that it be 1.5 mm or less.

[0140] Fig. 16(a) is a perspective view showing the appearance of the area dividing member 160a. Fig. 16(b) is an external view of the area dividing member 160, seen from the back side in the state shown in Fig. 16(a). Fig. 16(c) is a front view of the area dividing member 160a, Fig. 16(d) is a rear view of the area dividing member 160a, and Fig. 16(e) is a right side view of the area dividing member 160a.

[0141] 16(b), (d), and (e), a convex portion 241 is provided on the back surface of the area dividing member 160a. The convex portion 241 is shaped to fit into each of the perforations 231a to 231d. By inserting the convex portion 241 into one of the perforations 231a to 231d, the area dividing member 160a is attached to the lens 131 and functions as the area dividing member 160a.

[0142] 16 shows an example in which the area dividing member 160a is arc-moon shaped, the area dividing member 160a may have any shape as long as it is recognizable to the user and can divide the area defined by the rim into two areas. The area dividing member 160 may be square, trapezoidal, triangular, or circular, as long as it does not cover the user's pupil.

[0143] As described above, the eyeglasses 10 according to this modification can be used by freely attaching and detaching the area dividing member 160a. Therefore, the eyeglasses 10 can be used as regular eyeglasses, and the position of the area dividing member 160a can rotate the eyeball to the opposite side and correct posture. Furthermore, by using prism lenses for the eyeglasses 10, it is possible to obtain the benefits of both the prism lenses and the area dividing member 160. Furthermore, by making the area dividing member 160 detachable, the user can attach the area dividing member 160 at a desired position, taking into account the desired posture correction effect at any given time. This allows the eyeglasses 10 to be provided as eyeglasses that encourage posture correction with a high degree of freedom. Furthermore, by making the convex portion 241 cylindrical, the area dividing member 160 can be attached at any angle relative to the lens 131. Therefore, the area dividing member 160 can be arranged to divide the lens surface of the lens 131 at an angle.

[0144] (3) In the above embodiment, the region dividing member 160 is provided at an angle such that the extension direction of the region dividing member 160 is not parallel to the direction in which the thickness of the prism lens 131 provided in the eyeglasses does not change. However, this is not necessarily the case. The region dividing member 160 may be provided so that its extension direction is parallel to the direction in which the thickness of the prism lens does not change. In this case, the effect obtained varies depending on whether the region dividing member 160 is provided on the side where the base of the prism lens is located or on the opposite side. If the region dividing member 160 is provided closer to the base side of the prism lens 131, the effect of the prism lens can be enhanced. Since the prism lens 131 is provided as part of eyeglasses, there is a limit to the thickness that can be imparted to the prism lens 131. Therefore, if the user feels that the effect of the prism lens is weak, the region dividing member 160 may be provided closer to the base side of the prism lens 131. Conversely, if the area dividing member 160 is provided on the side opposite to the base of the prism lens 131, i.e., on the thinner side, the effectiveness of the prism lens 131 can be weakened, and it can be used as a braking member, for example, when the effectiveness of the prism lens 131 is too strong for the user.

[0145] (4) The area dividing member in the above embodiment may be realized by, for example, a string or rubber. The string or rubber may be attached to the frame or prism lens with glue or tape, or may be attached by hanging it around the frame of the eyeglasses 2. Alternatively, the area dividing member may be formed by forming the string or rubber into a ring shape and inserting the eyeglass frame into the ring. In other words, the area dividing member may be formed by hooking the looped string or rubber around the eyeglass frame. FIG. 17(a) shows an example in which a string-like object (such as the string or rubber described above) is attached to the eyeglasses 2 as the area dividing member 160. In this case, a locking portion 170 for hooking the string or rubber to the eyeglass frame or lenses may be provided to make it easier for the string or rubber to hook onto the eyeglasses. FIG. 17(b) shows an example in which a groove is provided in the frame 132 of the eyeglasses 2 as the locking portion 170. By hooking the string-like object serving as the area dividing member 160 into this groove, the area dividing member 160 can prevent the frame 132 from easily slipping off. Furthermore, if rubber is used for the region dividing member 160, the tension of the rubber can further prevent the region dividing member 160 from slipping off the frame 132 of the eyeglasses 2. FIG. 17(b) shows an example in which a groove is provided in the frame 132 of the eyeglasses 2 as the locking portion 170, but this may also be provided in the prism lens 131 of the eyeglasses 2. Furthermore, as shown in FIG. 17(c), the locking portion 170 may be configured so that the region dividing member 160 can be hung by making a part of the frame 132 of the eyeglasses 2 protrude. The locking portion 170 shown in FIG. 17(c) is configured to protrude from the frame 132, but this may also be configured so that two parts protrude and the region dividing member 160 passes through the gap between them. Note that although FIGS. 17(a) to 17(c) show a prism lens 131 as the lens of the eyeglasses 2, this lens may also be a normal vision correction lens or a lens for sunglasses. Furthermore, even when cover glasses or overglasses are used for the glasses 2, the string-like area dividing member 160 can be similarly provided with a locking portion 170 on the frame 132, so that the area dividing member 160 can be attached and detached freely to the glasses 2.In this case, a groove or other engaging portion 170 may be provided in the cover glass or overglasses (which may be provided in either the frame or lens of the cover glass or overglasses), and the lens of this cover glass or overglasses may be a prism lens.

[0146] (5) The eyeglasses are not limited to the above-mentioned modifications, and may be selected and combined as appropriate, or other modifications may be made to the eyeglasses that can guide the user's line of sight, enforce posture, or assist exercise. [Explanation of symbols]

[0147] 1, 2, 10 glasses 131 Prism Lens 132 frames 160 Area division member 170 Locking part

Claims

1. A prism lens whose thickness changes uniformly from one end to the other; a long area dividing member extending in a direction different from the direction in which the thickness of the prism lens does not change, and dividing the surface formed by the prism lens into two areas having a difference in area; a frame that holds the prism lens as a lens for glasses; Glasses comprising:

2. The area dividing member is provided on the surface of the prism lens so as to be biased toward the opposite side of the direction in which the line of sight of the user wearing the eyeglasses is to be guided.

2. The eyeglasses according to claim 1.

3. The area dividing member extends perpendicular to the direction in which the thickness of the prism lens does not change.

3. The eyeglasses according to claim 2.

4. The area dividing member is configured to be detachable from the prism lens.

2. The eyeglasses according to claim 1.

5. The prism lens has a thickness that varies in the vertical direction of the eyeglasses, The area dividing member is disposed so as to be positioned to the left of the prism lens when viewed from the front.

2. The eyeglasses according to claim 1.

6. The area dividing member is a long rectangular member.

2. The eyeglasses according to claim 1.

7. The thickness of the prism lens varies in the left-right direction of the eyeglasses, and the thickness of the inner edge side is thicker than the thickness of the outer edge side, The area dividing member extends in the left-right direction of the eyeglasses and is disposed so as to be positioned below the prism lens.

2. The eyeglasses according to claim 1.

8. The thickness of the prism lens varies in the vertical direction of the eyeglasses, and the lower side is thicker than the upper side. The area dividing member extends in the vertical direction of the eyeglasses and is disposed so as to be positioned near the outer edge of the prism lens in the horizontal direction.

2. The eyeglasses according to claim 1.

9. the region dividing member is a string-like member, The frame has a locking portion for locking the region dividing member, which is the string-like member.

2. The eyeglasses according to claim 1.

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