Glasses
Wide temples with integrated temple pads provide stable support for eyeglasses without nose pads, addressing the trade-off between stability and appearance by concealing the support structure.
Patent Information
- Application Number
- JP2025002788U
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-08-18
- Publication Date
- 2025-10-16
- Estimated Expiration
- 2035-08-18
AI Technical Summary
Eyeglasses without nose pads face a trade-off between stability and appearance, as enlarging the support structure for temple-based support makes it noticeable, while making it thin compromises stability.
The eyeglasses feature wide temples with temple pads that are thin at the base and thick at the tip, bulging downward, integrated with a transparent polyamide resin and a metal core, hidden by the temples in side view, providing stable support without being conspicuous.
The design allows stable wear without nose pads while maintaining a discreet support structure, ensuring comfort and aesthetic appeal.
Smart Images

Figure 0003253234000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to eyeglasses, and more particularly to eyeglasses that can be worn stably without nose pads. [Background technology]
[0002] Generally, eyeglasses consist of a front part to which a pair of lenses are fixed, temples extending from both ends of the front part, and end pieces attached to the ends of the temples. In addition, nose pads or nose pads are provided in the center of the front part to prevent the front part from slipping off the face when wearing the eyeglasses.
[0003] When wearing such glasses for a long time, the weight of the front of the glasses continues to be placed on the base of the nose where the nose pads come into contact, which can be uncomfortable. Furthermore, when the glasses are taken off, the nose pads can leave marks on the base of the nose, which is undesirable from an aesthetic point of view. To address this issue, nose-padless glasses have been proposed, which do away with nose pads and instead use temple pads to support the entire weight at two points on the left and right temples (see, for example, Patent Document 1). [Prior art documents] [Patent documents]
[0004] [Patent Document 1] Japanese Patent Publication No. 2020-95243 Summary of the Invention [Problem to be solved by the invention]
[0005] If nose pads were removed, the weight of the front of the glasses would no longer be supported by the base of the nose, so all conventional glasses without nose pads are designed to support the weight at the temples.
[0006] In order for the weight of the front of the eyeglasses, which are positioned on the face, to be stably supported by the temples on the sides of the head, it is necessary to enlarge the support structure to a certain extent, for example by increasing the area of contact with the temples. However, if the support structure is made larger, it becomes noticeable when the eyeglasses are worn, which results in a poor appearance. In particular, for eyeglasses that require a fashionable look, it is desirable to make the support structure as inconspicuous as possible. On the other hand, if the support structure is made thin and small in order to prioritize appearance, stability when worn will be compromised. In this way, eyeglasses without nose pads have a trade-off between wearing stability and good appearance.
[0007] In view of the above problems, the present invention aims to provide eyeglasses that can be worn stably without nose pads and whose support structure is not noticeable when worn. [Means for solving the problem]
[0008] According to one aspect of the present invention, eyeglasses comprise temples that are wide in the vertical direction, and temple pads that are fixed at their bases at predetermined positions on the inside of the temples and extend in the direction of the temples so as to gradually deviate from the inner surface of the temples toward their tips. The temple pads are thin at their bases and thick at their tips that bulge gently downward when the eyeglasses are worn, so that the entire or most of the temple pads are hidden by the temples in side view and cannot be seen. The temples and the end pieces are formed as a single unit using a transparent polyamide resin, TR90, and a metal core material is embedded inside the end piece. [Effects of the Invention]
[0009] According to this invention, the glasses can be worn stably without nose pads and the support structure can be made inconspicuous when worn. [Brief explanation of the drawings]
[0010] [Figure 1] 1 is a perspective view of a pair of eyeglasses according to an embodiment of the present invention; [Figure 2] 1 is a plan view of a pair of eyeglasses according to an embodiment of the present invention; [Figure 3] A side view of a pair of eyeglasses according to an embodiment of the present invention. [Figure 4] Enlarged view of the temple pad pocket [Figure 5] Exploded view of temple pads [Figure 6] Diagram explaining temple pad installation [Figure 7] Diagram showing the pad body removed from the temple pad [Figure 8] FIG. 10 is a perspective view of a temple pad according to a modified example; [Figure 9] An enlarged view of the attachment area when the temple pad in Figure 8 is attached to the temple. [Figure 10] Comparison diagram of a normal modern and a modified modern [Figure 11] An example of the temple shown in Figure 10 formed with TR90. DETAILED DESCRIPTION OF THE INVENTION
[0011] Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. However, more detailed description than necessary may be omitted. For example, detailed description of well-known matters or redundant description of substantially identical configurations may be omitted. This is to avoid unnecessary redundancy in the following description and to facilitate understanding by those skilled in the art.
[0012] The inventor provides the accompanying drawings and the following description to enable those skilled in the art to fully understand the present invention, and does not intend to limit the subject matter described in the claims. Furthermore, the dimensions, thickness, detailed shapes, etc. of each component depicted in the drawings may differ from the actual ones.
[0013] Fig. 1 is a perspective view of eyeglasses according to an embodiment of the present invention. Fig. 2 is a plan view of eyeglasses according to an embodiment of the present invention. Fig. 3 is a side view of eyeglasses according to an embodiment of the present invention. In this specification, the sagittal, horizontal, and vertical directions of the head when wearing the eyeglasses are defined as the front-to-back, left-to-right, and up-to-down directions of the eyeglasses, respectively.
[0014] <General structure of the glasses> The eyeglasses 100 according to this embodiment include a front 20 for fixing a pair of left and right lenses 10L, 10R, a pair of left and right temples 30L, 30R, and a pair of left and right temple pads 40L, 40R fixed at predetermined positions inside the temples 30L, 30R. The temples 30L, 30R are connected to the front 20 via hinges 50L, 50R provided at both left and right ends of the front 20, respectively, and can be folded toward the front 20.
[0015] <Front configuration example> The front 20 is gently curved so that it bulges slightly forward. The degree of curvature can be designed depending on the purpose of the eyeglasses 10. For example, the curvature can be greater for fashion eyeglasses and less for corrective eyeglasses. The front 20 may also be straight.
[0016] Specifically, the front 20 is composed of a pair of left and right rims 21L, 21R to which the lenses 10L, 10R can be fixed, a bridge 22 connecting the rims 21L, 21R, and a pair of left and right end pieces 23L, 23R provided at the left end of the rim 21L and the right end of the rim 21R. The hinges 50L, 50R are attached to the end pieces 23L, 23R, respectively.
[0017] The lenses 10L, 10R may be vision corrective lenses, light blocking lenses, or so-called non-prescription lenses. The rims 21L, 21R, bridge 22, and end pieces 23L, 23R may be integrally formed or may be formed as separate parts and joined together.
[0018] The front 20 may be made of any material, such as synthetic resin or metal.
[0019] <Temple configuration example> The temples 30L and 30R are not thin rod-shaped members but are composed of members having a certain width in the vertical direction. The temples 30L and 30R may be made of any material, such as synthetic resin or metal.
[0020] Specifically, the temples 30L, 30R have a shape in which the vertical width gradually narrows from the connection with the hinges 50L, 50R to the distal end. The width of the widest part of the temples 30L, 30R (the connection with the hinges 50L, 50R) is approximately 15 mm, and the width of the narrowest part (the boundary with the end piece, described later) is approximately 4 mm. Note that these dimensions are merely examples, and the present invention is not limited to these.
[0021] When wearing the eyeglasses 100, the temples 30L, 30R have approximately straight sections 31L, 31R extending from the temples to the tops of the ears, which extend in a slightly outward arc in the front-to-back direction. The end pieces 32L, 32R extending from the tops of the ears to the back have a smaller curvature, curving inward and downward. The cross section of the approximately straight sections 31L, 31R is approximately rectangular, and the inner surfaces 33L, 33R and outer surfaces 34L, 34R are nearly flat. The corners of the temples 30L, 30R are chamfered. Meanwhile, the distal ends of the end pieces 32L, 32R have a thick, three-dimensional curved shape that gently bulges inward.
[0022] Furthermore, the temples 30L, 30R are provided with pockets 35L, 35R on the inner surfaces 33L, 33R, respectively, which are open in the extension direction of the temples 30L, 30R. The tips of the base portions of the temple pads 40L, 40R are inserted into the pockets 35L, 35R, respectively, to fix the temple pads 40L, 40R to the temples 30L, 30R.
[0023] 4 is an enlarged view of the temple pad insertion pocket 35R and its surroundings. The rear end of the approximately straight portion 31R of the temple 30R is thickened so that it protrudes inward from the inner surface 33R of the temple 30R, forming the pocket 35R. The thickened portion protruding inward from the inner surface 33R smoothly connects to the end piece 32R, forming the inner surface 36R of the end piece 32R.
[0024] The pocket 35R has an opening at its front end, and the opening is approximately 3 mm long in the vertical direction, approximately 2 mm long in the horizontal direction, and approximately 6 mm deep in the front-to-back direction (the direction in which the temple 30R extends). Note that these dimensions are merely examples, and the present invention is not limited to these.
[0025] A rib 37R is formed at the top of the pocket 35R, smoothly extending from the upper end of the inner surface 33R of the temple 30R to the upper end of the inner surface 36R of the end cap 32R. A rib 38R is formed at the bottom of the pocket 35R, smoothly extending from the lower end of the inner surface 33R of the temple 30R to the lower end of the inner surface 36R of the end cap 32R. The pocket 35R is located at the back of the space between these two ribs 37R and 38R. These two ribs 37R and 38R serve as guides when inserting the tip of the base portion of the temple pad 40R into the pocket 35R.
[0026] A hole 39R is formed on the inner surface 36R of the end piece 32R at a position approximately 3 mm rearward from the opening of the pocket 35R. This hole 39R is a hole for screwing in the temple pad 40R inserted into the pocket 35R.
[0027] The pocket 35L is simply mirror-symmetric in shape to the above-described pocket 35R, and therefore a detailed description thereof will be omitted.
[0028] <Temple pad configuration example> 1 to 3 again, the temple pads 40L, 40R have their bases fixed to predetermined positions inside the temples 30L, 30R, and extend from there to their tips along the extension direction of the temples 30L, 30R so as to gradually deviate from the inner surfaces 33L, 33R of the temples 30L, 30R. Specifically, the bases of the temple pads 40L, 40R are inserted into and fixed in pockets 35L, 35R provided near the rear ends of the approximately straight portions 31L, 31R of the temples 30L, 30R, and extend from there forward, i.e., toward the front 20, along the approximately straight portions 31L, 31R so as to gradually deviate from the inner surfaces 33L, 33R of the temples 30L, 30R.
[0029] The temple pads 40L, 40R are thin at their base portions 41L, 41R, and are formed with a thick shape that bulges gently downward at their tip portions 42L, 42R that come into contact with the temples of the wearer when wearing the eyeglasses 100. The tip portions 42L, 42R also have a thick, three-dimensional curved shape that bulges gently inward, similar to the end portions of the end pieces 32L, 32R.
[0030] The gap between the inner surfaces 33L, 33R of the temples 30L, 30R and the tips of the temple pads 40L, 40R is approximately 7 mm. Furthermore, when the temples 30L, 30R are open, the distance between the base portions 41L, 41R of the temple pads 40L, 40R is approximately 130 mm, and the distance between the tip portions 42L, 42R is approximately 120 mm. These dimensions are merely examples, and the present invention is not limited to these.
[0031] FIG. 5 is an exploded enlarged view of the temple pad 40R. The temple pad 40R includes a core 43R made of a plastically deformable metal and a pad main body 44R made of synthetic resin (preferably a slightly soft synthetic resin) in which a root portion 41R and a leading end portion 42R are integrally formed. One end of the core 43R bulges slightly in the vertical direction and is provided with a screw hole 45R. An opening for inserting the core 43R is provided on the side of the root portion 41R of the pad main body 44R, and the pad main body 44R can be placed over the core 43R from this opening along the entire length of the pad main body 44R. When the core 43R is placed all the way over the pad main body 44R, one end of the core 43R, including the screw hole 45R, is exposed.
[0032] The dimensions of the core material 43R are approximately 40 mm in length, approximately 1 mm in thickness, and approximately 1 mm in vertical width, the portion exposed from the pad body 44R having a vertical width of approximately 3 mm and a length of approximately 5 mm, and the diameter of the screw hole 45R being approximately 1 mm. The dimensions of the pad body 44R are approximately 44 mm in length, approximately 3 mm in thickness, the vertical width of the base portion 41R being approximately 4 mm, the maximum vertical width of the tip portion 42R being approximately 12 mm, and the length from the tip of the pad body 44R to the maximum vertical width portion being approximately 10 mm. Note that these dimensions are merely examples, and the present invention is not limited to these.
[0033] 6 is a diagram illustrating the attachment of the temple pad 40R. As shown in the figure, (1) the pad body 44R is placed over the core material 43R, (2) one end of the core material 43R provided with a screw hole 45R is inserted into the pocket 35R, and (3) a screw 46R is passed through the hole 39R to fasten the temple pad 40R in a predetermined position inside the temple 30R.
[0034] The length of the screw 46R is approximately 3 mm, and the diameter is approximately 1 mm. Note that these dimensions are merely an example, and the present invention is not limited to these.
[0035] When replacing the temple pad 40R, the screws 46R are removed, the temple pad 40R is pulled out from the pocket 35R, and replaced with a new temple pad 40R. Alternatively, it is also possible to replace only the pad body 44R while leaving the core material 43R screwed to the pocket 35R.
[0036] 7 is a diagram showing the state in which the pad body 44R has been pulled out from the temple pad 40R. When the pad body 44R is pulled out from the temple pad 40R, the core material 43R appears. The core material 43R extends in the extension direction of the temple 30R from one end where the screw hole 45R is provided to the other end so as to gradually deviate from the inner surface 33R of the temple 30R. With the core material 43R exposed as shown in the figure, a new pad body 44R can be placed over the core material 43R.
[0037] The temple pad 40L is simply mirror-symmetrical in shape to the above-described temple pad 40R, and therefore a detailed description thereof will be omitted.
[0038] Effect In the eyeglasses 100 according to this embodiment, the left temple 30L, end piece 32L, and pocket 35L, and the right temple 30R, end piece 32R, and pocket 35R are each formed as an integral member. In particular, the outer surfaces 34L, 34R of the temples 30L, 30R are formed as smooth, step-free curves from the connection to the hinges 50L, 50R to the ends of the end pieces 32L, 32R. Furthermore, the vertical width and thickness of the end pieces 23L, 23R are matched to the vertical width and thickness of the temples 30L, 30R, respectively. As a result, when the temples 30L, 30R are unfolded, the design gives a clean impression, with the front 20 extending from the left and right temples 30L, 30R, and further to the left and right end pieces 32L, 32R continuing in an integrated fashion.
[0039] Furthermore, when wearing the eyeglasses 100, the three-dimensional curved inner surface of the end portions of the earpieces 32L, 32R move from the top of the ear to the back while making contact with the temples, and when the eyeglasses 100 are worn, the end portions of the earpieces 32L, 32R pinch the back of the ear from both sides with moderate force, allowing the rear end of the eyeglasses 100 to be held firmly against the head.
[0040] Furthermore, the bases of the temple pads 40L, 40R are fixed near the rear ends of the approximately straight portions 31L, 31R of the temples 30L, 30R, respectively, and the temple pads 40L, 40R are positioned so that they extend from there toward the front 20 along the approximately straight portions 31L, 31R so as to gradually deviate from the inner surfaces 33L, 33R of the temples 30L, 30R. This means that when putting on the eyeglasses 100, the tip portions 42L, 42R of the temple pads 40L, 40R do not get caught on the temples of the head, and the eyeglasses 100 can be put on smoothly.
[0041] In addition, the temple pads 40L, 40R, which have a metal core, exhibit moderate elasticity, so that when the eyeglasses 100 are worn, the tip portions 42L, 42R of the temple pads 40L, 40R pinch the temples from the left and right with moderate force, providing firm support to prevent the front 20 from slipping down even without nose pads.
[0042] Furthermore, when the eyeglasses 100 are not being worn, the tip portions 42L, 42R of the temple pads 40L, 40R can be moved further inward or further outward to fit the head shape of the person wearing the eyeglasses 100, for example, by applying force with the fingers to the temple pads 40L, 40R.
[0043] Furthermore, since the pad main body can be removed while the core materials 43L, 43R of the temple pads 40L, 40R remain fixed to the temples 30L, 30R, replacement of the temple pads 40L, 40R is easy.
[0044] It is also worth noting that in a side view of the eyeglasses 100 according to this embodiment, most of the temple pads 40L, 40R are hidden by the temples 30L, 30R and cannot be seen. Fig. 3 is a left side view of the eyeglasses 100, and only a small portion of the lower part of the tip portion 42L of the temple pad 40L can be seen from the temple 30L.
[0045] In this way, the eyeglasses 100 according to this embodiment employ temple pads 40L, 40R that have a relatively large contact area with the temples, while the temple pads 40L, 40R are inconspicuous when wearing the eyeglasses 100. This achieves the intended purpose of allowing the eyeglasses to be worn stably without nose pads and making the support structure inconspicuous when worn.
[0046] <<Variations>> The above-described eyeglasses 100 may be modified as follows: For example, the left temple 30L, end piece 32L, and pocket 35L, and the right temple 30R, end piece 32R, and pocket 35R may be formed from separate parts and joined together.
[0047] The pockets 35L, 35R may not be provided, and the temple pads 40L, 40R may be fixed directly to the inner surfaces 33L, 33R of the temples 30L, 30R.
[0048] The frames 21L and 21R may be two-point frames or nylon frames.
[0049] The hinges 50L and 50R may be eliminated.
[0050] The vertical width of the temples 30L, 30R may be slightly increased, or the vertical width of the tip portions 42L, 42R of the temple pads 40L, 40R may be slightly decreased, or both may be performed so that the entire temple pads 40L, 40R are hidden by the temples 30L, 30R in a side view and cannot be seen.
[0051] <Prevents hair from getting caught> In the eyeglasses 100 according to the above embodiment, the temple pads 40L, 40R are arranged so as to gradually deviate from the inner surfaces 33L, 33R of the temples 30L, 30R from the rear end portions of the temples 30L, 30R toward the front 20. This means that when wearing the eyeglasses 100, hair may get caught in the gap between the temples 30L, 30R and the temple pads 40L, 40R and become caught in the base portions 41L, 41R of the temple pads 40L, 40R, preventing the hair from being removed. Therefore, the temple pads 40L, 40R may be arranged in the opposite direction. That is, the base portions of the temple pads 40L, 40R may be fixed near the hinges 50L, 50R, and the temple pads 40L, 40R may be attached from there along the extension direction of the temples 30L, 30R so that the tip portions 42L, 42R gradually deviate from the inner surfaces 33L, 33R of the temples 30L, 30R toward the rear.
[0052] Alternatively, a protrusion may be provided on the base portion 41R of the temple pads 40L, 40R. FIG. 8 is a perspective view of a temple pad 40R according to a modified example, showing the temple pad 40R of FIG. 5 as viewed from the back. In the temple pad 40R according to this modified example, a protrusion 47R is formed on the side of the base portion 41R of the pad main body 44R facing the temple 30R (not shown), and protrudes slightly to the extent that it fills the gap between the temple pad 40R and the temple 30R at the base portion 41R. As an example, the protrusion 47R protrudes approximately 1 mm from the surface of the base portion 41R of the pad main body 44R and extends approximately 6 mm toward the tip portion 42R from the side of the base portion 41R of the pad main body 44R (the edge of the opening for inserting the core material 43R) with a width of approximately 2 mm. FIG. 9 is an enlarged view of the attachment portion when the temple pad 40R of FIG. 8 is attached to the temple 30R. The convex portion 47R fills the gap between the temple pad 40R and the temple 30R at the base portion 41R of the temple pad 40R, so that even if hair gets into the gap between the temple 30R and the temple pad 40R when wearing the eyeglasses 100, the hair can be easily removed without getting caught on the base portion 41R of the temple pad 40R.
[0053] The shape of the convex portion 47R is not limited to that shown in Fig. 5, and the cross-sectional shape may be triangular or semi-cylindrical. Furthermore, the convex portion 47R does not have to extend from the side surface of the base portion 41R of the temple pad 40R, and may be provided so as to protrude at a position approximately 6 mm from the side surface of the base portion 41R. Alternatively, the temple pad 40R may not be provided with the convex portion 47R, but rather a convex portion may be provided on the inner surface 33R (see Fig. 7) of the temple 30R. Note that the temple pad 40L is simply mirror-symmetrical to the temple pad 40R in shape, and therefore a detailed description of modified examples of the temple pad 40L will be omitted.
[0054] <Measures to prevent the front from slipping down> Because the eyeglasses 100 do not have nose pads, if the end pieces 32L, 32R do not firmly hold the back of the wearer's head (behind the ears) when worn, there is a risk that the front piece 20 will slip down, with the tip portions 42L, 42R of the temple pads 40L, 40R acting as a fulcrum. Therefore, the end pieces 32L, 32R may be made thicker to more firmly hold the back of the head. Figure 10 is a comparison diagram between a standard end piece and an end piece according to a modified example. Like a standard end piece, the end piece according to the modified example is also thick near its tip and bulges inward, but the thickness of its thickest part is approximately 7 mm, roughly three times that of a standard end piece. By increasing the thickness of the end pieces near their tips, the end pieces 32L, 32R can firmly hold the back of the wearer's head when the eyeglasses 100 are worn, preventing the front piece 20 from slipping down and improving the wearing comfort of the eyeglasses 100.
[0055] It is also important that the end pieces 32L, 32R gently curve inward to fit the back of the head so that they can firmly hold the back of the wearer's head when wearing the eyeglasses 100. Because head sizes and shapes vary from person to person, it is advisable to form the end pieces 32L, 32R from a flexible material in order for the end pieces 32L, 32R to fit the back of the head of any person.
[0056] For example, the end pieces 32L and 32R can be made separately from the temples 30L and 30R using a material such as silicone rubber. However, if design is a priority, it is preferable to make the temples 30L and 32L, and the temples 30R and 32R, into one piece and form them from a transparent, glossy resin. Examples of such resins include cellulose acetate and a transparent polyamide resin called TR90.
[0057] Acetate is relatively hard, so once bent, it can maintain its shape for a long time. However, at room temperature, it is hard and difficult to bend, and forcing it to bend can lead to cracking or breakage, so it must be heated slightly before bending, making it difficult to handle. Furthermore, acetate is relatively expensive. On the other hand, TR90 is relatively soft, so it can be easily bent at room temperature, and is relatively inexpensive. However, while TR90 can maintain its shape when heated and bent, it quickly returns to its original shape when bent at room temperature. For this reason, in order to maintain a bent shape at room temperature for a long time, it is necessary to embed a highly plastic material such as a metal wire.
[0058] Figure 11 is a diagram showing an example of the end pieces shown in Figure 10 formed using TR90. A wire made of stainless steel, nickel alloy, or the like, i.e., a core material 60, is embedded inside end pieces 32L, 32R formed using TR90. Core material 60 extends from the vicinity of pockets 35L, 35R shown in Figure 4 to the vicinity of the tips of end pieces 32L, 32R. By forming end pieces 32L, 32R using TR90 and further embedding core material 60 inside them, end pieces 32L, 32R can be realized that are easy to bend, can maintain a bent shape for a long time, and are less likely to stretch.
[0059] As described above, the embodiments have been described as examples of the technology of the present invention, and for this purpose, the accompanying drawings and detailed description have been provided.
[0060] Therefore, the components shown in the accompanying drawings and detailed description may include not only essential components for solving the problem, but also components that are not essential for solving the problem in order to illustrate the above technology. Therefore, the fact that these non-essential components are shown in the accompanying drawings or detailed description should not be interpreted as immediately indicating that these non-essential components are essential.
[0061] Furthermore, since the above-described embodiment is intended to illustrate the technology of the present invention, various modifications, substitutions, additions, omissions, etc. may be made within the scope of the utility model registration claims or their equivalents. [Explanation of symbols]
[0062] 100...Glasses, 30L, 30R...Temple, 32L, 32R...Eyepiece, 35L, 35R...Pocket, 40L, 40R...Temple pad, 41L, 41R...Base, 42L, 42R...Tip, 43R...Core, 44R...Pad body, 47R...Convex part, 60...Core
Claims
[Claim 1] Glasses, With wide temples in the vertical direction, a temple pad whose base is fixed at a predetermined position inside the temple and extends from there to its tip along the extension direction of the temple so as to gradually deviate from the inner surface of the temple; and a tip end of the temple, The temple pads are formed in a thick shape with a narrow base and a tip that comes into contact with the temples of a wearer when the eyeglasses are worn, and that bulges out gently downward; The temple pads are entirely or almost entirely hidden by the temples in a side view, and are therefore not visible; The temple and the end cap are formed as an integral member using transparent polyamide resin TR90, and a metal core is embedded inside the end cap. Glasses characterized by:
Citation Information
Patent Citations
Spectacles
JP2020095243A