Eyeglass frame for height-number lenses and eyeglasses
By designing a sloping back and a thinning structure on the outer area of the ring-shaped lens, the edge of the lens is hidden, solving the problem of significantly increased thickness and weight of high myopia lenses, and improving the choice of frame design and wearing comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINS HLDG INC
- Filing Date
- 2025-04-07
- Publication Date
- 2026-05-08
AI Technical Summary
The significant thickness of high myopia lenses increases their weight, limits the range of frame design options, and makes them prone to shifting, affecting appearance and wearing comfort.
Design an eyeglass frame structure in which the annular lens rim has a sloping back on the outer region, the thickness of the outer region of the lens rim decreases from the outer peripheral edge to the inner peripheral edge, and a design is formed in the outer region of the lens rim to hide the edge of the lens, while the temple ends are sloping to increase stability.
It reduces the concern about lens thickness, lowers the overall weight of the frame, reduces the risk of lens shift, expands the range of frame design options, and enhances the wearer's aesthetic experience through optical illusions.
Smart Images
Figure CN224216958U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an eyeglass frame and eyeglasses for using high-prescription lenses to correct myopia. Background Technology
[0002] Generally, lenses for high myopia are concave lenses whose thickness increases from the center to the edge. In eyeglasses with such lenses, there are sometimes undesirable appearances, such as the lens appearing to protrude from the frame when viewed from the side, the wearer's silhouette appearing distorted, or the eyes appearing smaller. Therefore, in the past, methods have been used to make the thickness of the lens less noticeable, such as engraving fine lines on the outer surface of the frame to make the lens wall appear thinner, or performing a thinning process (so-called METS process) on the edge of the lens, and then using a frame made of a small oval or circular lens shape near the center of the relatively thin lens (see Patent Document 1).
[0003] Patent documents
[0004] Patent Document 1: Japanese Utility Model Registration No. 2544616 Utility Model Content
[0005] Generally, when purchasing eyeglasses, wearers choose frames with a design they like and then install lenses with a prescription suitable for their vision. In this case, wearers with mild myopia can choose frame designs without being restricted by lens prescription.
[0006] However, as mentioned above, generally speaking, for eyeglasses with high-powered lenses (diopter) of -6.00D or higher (large negative values) intended for high myopia, distinctive frame designs are used to minimize the lens thickness, thus narrowing the range of design options for the wearer. Furthermore, even with thinning processes, high-powered lenses are still thicker than low-powered lenses, and their added weight makes the entire front frame heavier, causing the glasses to shift forward easily when worn. Thus, high-powered eyeglasses present unique problems such as a narrower range of frame design choices, concerns about lens thickness, and the tendency for the glasses to shift due to the weight of the lenses.
[0007] This invention was made in view of the above aspects, and its object is to provide an eyeglass frame and eyeglasses for high-prescription lenses that reduce the problems specific to eyeglasses with high-prescription lenses for correcting myopia.
[0008] One embodiment of the present invention relates to an eyeglass frame for correcting myopia with high-prescription lenses, comprising a front frame and a pair of temples connected to the left and right ends of the front frame. The front frame has a pair of annular lens rings that define a lens holding hole for holding high-prescription lenses and a central beam connecting the pair of annular lens rings to each other. Each of the pair of annular lens rings has a back surface that is inclined in a manner in which the thickness decreases from the outer peripheral edge to the inner peripheral edge in at least a portion of the outer region of the lens ring located outside the lens holding hole.
[0009] According to this embodiment, each of the pair of annular lens rings has a back surface in its outer region that slopes downwards, with the thickness decreasing from the outer peripheral edge to the inner peripheral edge. Therefore, the outer peripheral edge of the high-prescription lens can be concealed using the outer peripheral edge of the outer region of the lens ring. Furthermore, the sloped back surface in the outer region of the lens ring reduces the weight of the front frame. Thus, problems unique to high-prescription eyeglasses, such as concerns about lens thickness and the tendency for the glasses to shift due to lens weight, can be reduced.
[0010] In the above embodiment, the thickness in the outer peripheral edge of the outer region of the annular lens ring with an inclined back can be greater than the thickness in the outer peripheral edge of a high-prescription lens in which the optical center of a single-focal lens with a power of -10.00D and a refractive index of 1.74 is set at the center of the lens retaining hole and has been machined.
[0011] In the above embodiment, the thickness of the inner peripheral edge of the outer region of the annular lens ring having an inclined back side can be less than the thickness of the outer peripheral edge of a high-prescription lens in which the optical center of a single-focus lens with a power of -10.00D and a refractive index of 1.74 is set at the center of the lens holding hole and has been machined.
[0012] In the above embodiments, the thickness difference between the outer and inner peripheral edges in the outer region of the annular lens ring with an inclined back surface can be 1 mm or more.
[0013] In the above embodiment, each annular lens ring can be configured such that its thickness decreases from the temple side at both ends of the front frame toward the center beam side when viewed from above.
[0014] In the above embodiments, the thickness difference between the outer peripheral edge and the inner peripheral edge in the outer region of the lens ring can be greater than the thickness difference between the outer peripheral edge and the inner peripheral edge in the inner region of the lens ring located inside the lens retaining hole.
[0015] In the above embodiments, the maximum width of the lens holding hole of each annular lens ring in the left-right direction when viewed from the front can be more than 43.5 mm and less than 46.5 mm.
[0016] In the above embodiments, each annular lens ring can have a width of more than 2 mm when viewed from the front.
[0017] In the above embodiment, the front frame may further have a pair of posts that protrude outwards in the left and right directions from each of the annular lens rings when viewed from the front and are connected to the temples. On the front of each pair of posts, multiple marks of different sizes may be arranged side by side in the left and right directions, and the size of the multiple marks may gradually decrease from the inside of the posts toward the outside.
[0018] In the above embodiments, the temple may have a temple end that is wider than other parts of the temple. The temple end may have an inner surface that is inclined in a manner that the upper part is located on the outside compared to the lower part, and is configured to clamp the wearer's head.
[0019] Based on one embodiment of the present invention, a pair of eyeglasses with a high-prescription lens of -6.00D or higher is provided on an eyeglass frame for high-prescription lenses in the above embodiment.
[0020] One embodiment of this utility model relates to a front frame for high-prescription lenses for correcting myopia and a pair of temples connected to the left and right ends of the front frame. The front frame has a pair of annular lens rings with lens holding holes for holding high-prescription lenses, a central beam connecting the pair of annular lens rings to each other, and a pair of posts protruding outward in the left and right directions from each annular lens ring and connected to the temples. The maximum width of the lens holding holes of each annular lens ring in the left and right directions when viewed from the front is more than 43.5 mm and less than 46.5 mm, and each annular lens ring has a width of more than 2 mm when viewed from the front.
[0021] According to this embodiment, since the maximum width of the lens holding hole of each annular lens ring in the left-right direction when viewed from the front is 43.5 mm to 46.5 mm, and each annular lens ring has a width of 2 mm or more when viewed from the front, the size of the lens shape can be increased, thereby reducing the problems unique to eyeglasses for high prescription lenses, such as the narrow range of frame design options.
[0022] In the above embodiments, the thickness in at least a portion of the outer peripheral edge of the region outside the lens ring located outside the lens retaining hole can be greater than the thickness in the outer peripheral edge of a high-prescription lens in which the optical center of a -10.00D, 1.74 refractive index single-focal lens is set at the center of the lens retaining hole and has been machined.
[0023] In the above embodiments, the thickness in the inner peripheral edge of at least a portion of the outer region of the lens ring may be less than the thickness in the outer peripheral edge of a high-prescription lens in which the optical center of a single-focal lens with a power of -10.00D and a refractive index of 1.74 is set at the center of the lens retaining hole and has been machined.
[0024] In the above embodiment, multiple marks of different sizes can be arranged side by side along the left-right direction on the front of each pair of pile heads, and the size of the multiple marks can gradually decrease from the inside of the pile head to the outside.
[0025] In the above embodiments, the temple may have a temple tail that is wider than other parts of the temple, and the temple tail may have an inner surface that is inclined in a manner that the upper part is located on the outside compared to the lower part, and is configured to clamp the wearer's head.
[0026] According to one embodiment of the present invention, a pair of eyeglasses with a high-prescription lens of -6.00D or higher is provided on an eyeglass frame for high-prescription lenses as described in the above embodiment.
[0027] According to this invention, problems unique to eyeglasses used for correcting myopia, such as a narrowing range of frame design options, concerns about lens thickness, and the tendency for glasses to shift due to the weight of the lenses, can be reduced. Attached Figure Description
[0028] Figure 1 This is a top view illustrating a structural example of eyeglasses (eyeglass frames with high-prescription lenses) used to illustrate high-prescription lenses.
[0029] Figure 2 This is a front view used to illustrate a structural example of the front frame of eyeglasses.
[0030] Figure 3 This is a rear view used to illustrate an example of the structure of the front frame of eyeglasses.
[0031] Figure 4 This is a diagram illustrating an example of the structure of the back side of the outer region of the lens ring in a ring-shaped lens ring.
[0032] Figure 5 This is a cross-sectional diagram (AA) illustrating an example of the structure of the back side of the outer region of the lens ring in a ring-shaped lens ring.
[0033] Figure 6 This is a diagram used to illustrate the thickness L1 of the outer peripheral edge of a high-prescription lens.
[0034] Figure 7 This is a BB cross-section diagram used to illustrate an example of the structure of the back side of the inner region of the lens ring in an annular lens ring.
[0035] Figure 8 This is a diagram illustrating an example of the thickness of the annular lens ring in the front-back direction.
[0036] Figure 9 This is a diagram illustrating a structural example of a ring-shaped lens when viewed from above. Detailed Implementation
[0037] The preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Figure 1 This is a top view illustrating an example structure of a spectacle frame fitted with high-prescription lenses for correcting myopia, i.e., spectacle 1 for high-prescription lenses. Figure 2 This is a front view illustrating a structural example of the front frame 10 of the glasses 1. Figure 3 This is a rear view illustrating an example of the structure of the front frame 10 of the eyeglasses 1. However, the hinge 90 for mounting the temples 11 is omitted. It should be noted that in this specification, the front and back of the eyeglasses 1 correspond to the front and back of the wearer's head when wearing the eyeglasses 1. When viewed from the temples 11 (described later), the side with the front frame 10 is considered the front, and the side with the temples 11 when viewed from the front frame 10 is considered the rear. The top and bottom of the eyeglasses 1 correspond to the top and bottom of the wearer's head when wearing the eyeglasses 1. Furthermore, relative to the temples 11, the side facing the wearer's head is considered the inside, and relative to the temples 11, the side opposite to the wearer's head is considered the outside. The direction Y, perpendicular to the front and back of the front frame 10 and horizontal, is considered the left and right direction X. The eyeglasses 1 includes a high-prescription lens and an eyeglass frame. That is, in this embodiment, the eyeglass frame may be the portion after the high-prescription lens 30 is removed from the eyeglasses 1.
[0038] like Figure 1 As shown, in one embodiment, the eyeglasses 1 for high-prescription lenses includes a front frame 10 and a pair of temples 11. In this specification, high-prescription lenses refer to lenses with a high prescription of -6.00D or higher (e.g., -10.00D, etc.), which is generally referred to as high myopia, including -6.00D.
[0039] like Figures 1 to 3 As shown, in one embodiment, the front frame 10 includes a pair of left and right annular lens rings 20, a bridge 21, and a headpiece 22. The front frame 10 further includes a nose pad 23 that abuts against the wearer's nose.
[0040] Each annular lens ring 20 has a lens retaining hole 40 on its inner side for retaining the lens power of the lens 30. A center beam 21 is disposed between the left and right annular lens rings 20, connecting the annular lens rings 20 to each other. The center beam 21 is located at the center of the front frame 10 in the left-right direction X, and the front frame 10 is symmetrical about the center beam 21.
[0041] Each annular lens ring 20 has a generally circular frame shape. Furthermore, each annular lens ring 20 has an approximately rectangular, approximately trapezoidal, or approximately square cross-section when cut by a plane perpendicular to the extension direction (circumferential direction) of the annular lens ring. That is, each annular lens ring 20 has a front surface 50, a back surface 51, an outer peripheral surface 52, and an inner peripheral surface 53. Moreover, each annular lens ring 20 has a thickness in the front-rear direction Y and a width in the radial direction (away from the center) relative to the center of the lens retaining hole 40.
[0042] Each annular lens ring 20 has a generally flat front surface 50. For example... Figure 4 and Figure 5 As shown, each annular lens ring 20 has a back surface 51a in the outer region 20a of the lens ring, located outside the lens retaining hole 40, where the thickness decreases from the outer peripheral edge 20b towards the inner peripheral edge 20c. The back surface 51a... Figure 5 The cross-sectional shape shown can be a straight inclined surface or a curved inclined surface that is concave towards the front 50° side. It should be noted that, for example... Figure 3 As shown, the outer region 20a of the lens rim can be the region located outside in the left-right direction (on the temple 11 side) compared to the line P2 that passes through the center C2 of the lens retaining hole 40 and faces in the vertical direction. The inclined back surface 51a can be formed in part of or the entire outer region 20a of the lens rim.
[0043] like Figure 5 As shown, the thickness T1 in the outer peripheral edge 20b of the outer region 20a of the lens rim is greater than the thickness L1 in the outer peripheral edge 30a of the high-prescription lens 30. More specifically, the thickness T1 in the outer peripheral edge 20b of the outer region 20a of the lens rim is greater than the thickness L1 in the outer peripheral edge 30a of the high-prescription lens 30, where the optical center of a -10.00D, 1.74 single-focal lens is set at the center of the lens holding hole 40 (the center of the lens shape) and has been machined. It should be noted that this is not limited to high-prescription lenses; the thickness in the outer peripheral edge of the lens generally depends on the position of the optical center of the lens, which is machined to match the shape of the lens holding hole. That is, when the high-prescription lens 30 is inserted into the lens holding hole 40, the position of the lens is determined in a way that the wearer's pupil is aligned with the optical center P1 of the lens, and the lens is machined to match the shape of the lens holding hole 40 (the lens shape). Figure 6 As shown, assuming that the wearer's pupil position is aligned with the center of the lens retaining hole 40, the thickness L1 of the high-power lens 30 mentioned here is the thickness in the outer peripheral edge 30a when the lens is cut such that the optical center P1 of the single-focal lens with a power of -10.00D and a refractive index of 1.74 is aligned with the position C1 of the wearer's pupil.
[0044] like Figure 5 As shown, the thickness T2 in the inner peripheral edge 20c of the outer region 20a of the lens ring can be less than the thickness L1 of the outer peripheral edge 30a of the high-prescription lens 30.
[0045] The difference ΔT1 between the thickness T1 in the outer peripheral edge 20b of the outer region 20a of the lens ring and the thickness T2 in the inner peripheral edge 20c can be 1 mm or more, or preferably 1 mm or more and 5 mm or less.
[0046] like Figure 7 As shown, each annular lens ring 20 has a back surface 51b in the inner region 20d of the lens ring located inside the lens retaining hole 40, where the thickness decreases from the outer peripheral edge 20b towards the inner peripheral edge 20c, or has a back surface 51b with a fixed thickness from the outer peripheral edge 20b towards the inner peripheral edge 20c. The thickness difference ΔT1 between the outer peripheral edge 20b and the inner peripheral edge 20c in the outer region 20a of the lens ring is greater than the thickness difference ΔT2 between the outer peripheral edge 20b and the inner peripheral edge 20c in the inner region 20d of the lens ring. The thickness difference ΔT2 can be zero. It should be noted that, as Figure 3 As shown, the inner region 20d of the lens rim can be the region located inside the left-right direction (on the side of the center beam 21) compared to the line P2 that passes through the center C2 of the lens retaining hole 40 and faces the vertical direction. The inclined back surface 51b can be formed in part of or throughout the inner region 20b of the lens rim.
[0047] like Figure 8 as well as Figure 9 As shown, the annular lens rings 20 of the front frame 10 are formed such that, when viewed from above, the thickness decreases from the temple 11 side in the left-right direction X towards the center beam 21 side. For example, the thickness T of the outer peripheral surface 52 of the upper side of each annular lens ring 20 in the front-back direction Y can gradually decrease from the outer side in the left-right direction X towards the inner side.
[0048] like Figure 2 As shown, the front frame 10 has a head 22 protruding outward in a left-right direction X from the outer regions 20a of each lens ring. The head 22 can extend rearward after protruding outward in a left-right direction X from the outer regions 20a of each lens ring. The temple 11 is rotatably connected to the end of the head 22.
[0049] On the front surface 22a of each pile head 22, multiple marks 80 of different sizes are arranged side by side along the left-right direction X. The size of the multiple marks 80 gradually decreases from the inside to the outside of the pile head 22. The multiple marks 80 have the same shape. For example, two circular marks 80a and 80b are arranged on the front surface 22a of the pile head 22, and the diameter of the outer mark 80b is smaller than the diameter of the inner mark 80.
[0050] The maximum width D1 of the lens retaining hole 40 in the left-right direction when viewed from the front is 43.5 mm to 46.5 mm. Each annular lens ring 20 has a width D2 of 2 mm or more when viewed from the front. For example, the width D2 of the front 50 is 2 mm or more. The width D2 of the front 50 on the upper and lower sides of the annular lens ring 20, excluding the portion continuous with the center beam 21 and the post head 22, can be 10 mm or less. Furthermore, the annular lens ring 20 can be a dark color such as black or brown.
[0051] like Figure 1 As shown, the temples 11 are configured to hang on the wearer's ears. Each temple 11 is connected to the head 22 of the front frame 10. Each temple 11 is rotatable relative to the head 22 via a hinge structure (hinge) 90 having a rotation axis extending in the vertical direction.
[0052] The temple 11 has an elongated shape in the front-to-back direction Y. The temple 11 has a temple tail 101 that is wider vertically than the other parts (front portion) 100 of the temple 11. The temple tail 101 has an inner surface 101a that slopes outwards from the upper part compared to the lower part, and is configured to hold the wearer's head. The inner surface 101a faces obliquely upwards. The front portion 100 has an inner surface 100a facing horizontally. The temple tail 101 can be a resin or rubber temple tip. The temple tail 101 can have a greater weight than the front portion 100.
[0053] According to this embodiment, the eyeglasses 1 for high-prescription lenses includes a front frame 10 and a pair of temples 11. The front frame 10 includes a pair of annular lens rings 20 that define a lens holding hole 40 for holding a high-prescription lens 30, and a bridge 21 connecting the pair of annular lens rings 20 to each other. Each pair of annular lens rings 20 has a back surface 51a in an outer region 20a located outside the lens holding hole 40, where the thickness decreases from the outer peripheral edge 20b towards the inner peripheral edge 20c. Therefore, as Figure 8 As shown, the thickness of the outer peripheral edge 20b of the outer region 20a of the annular lens rim 20 can be increased, thus concealing the thickness of the high-prescription lens 30 from the outside. Furthermore, since the thickness of the inner peripheral edge 20c of the outer region 20a of the lens rim can be reduced, the weight of the annular lens rim 20 and the entire front frame 10 can be reduced accordingly. This helps to suppress concerns about the thickness of the high-prescription lens and prevents the glasses from shifting due to the weight of the lens, thereby reducing problems specific to high-prescription glasses.
[0054] In this embodiment, the thickness T1 in the outer peripheral edge 20b of the outer region 20a of the lens ring is greater than the thickness L1 in the outer peripheral edge 30a of the high-prescription lens 30, where the optical center of the -10.00D, 1.74 single-focal lens is set at the center of the lens holding hole 40 and has been machined. Therefore, when viewed from the outside, the thickness of the high-prescription lens 30 can be concealed using the outer peripheral edge 20b of the outer region 20a of the lens ring, thus controlling the thickness of the high-prescription lens to a level that is a concern.
[0055] In this embodiment, the thickness T2 in the inner peripheral edge 20c of the outer region 20a of the lens ring is less than the thickness L1 in the outer peripheral edge 30a of the high-prescription lens 30, for which the optical center of the -10.00D, 1.74 single-focal lens is set at the center of the lens holding hole 40 and has been machined. Therefore, the thickness T2 in the inner peripheral edge 20c of the outer region 20a of the lens ring is reduced, thus correspondingly reducing the weight of the annular lens ring 20 and the entire front frame 10. As a result, the possibility of the front frame 10 shifting or slipping due to the weight of the high-prescription lens 30 can be reduced.
[0056] In this embodiment, each annular lens ring 20 is formed such that, in a top view, the thickness decreases from the temple 11 side towards the center beam 21 side. This reduces the thickness in the front-rear Y direction within the inner region 20d of the lens ring, thereby correspondingly reducing the weight of the front frame 10.
[0057] In this embodiment, the thickness difference ΔT1 between the outer peripheral edge 20b and the inner peripheral edge 20c in the outer region 20a of the lens ring is greater than the thickness difference ΔT2 between the outer peripheral edge 20b and the inner peripheral edge 20c in the inner region 20d of the lens ring. Therefore, while reducing the overall weight of the front frame 10, the thickness of the high-prescription lens 30 can be concealed through the outer peripheral edge 20b in the outer region 20a of the lens ring when viewed from the outside, making it less visible.
[0058] In this embodiment, the maximum width D1 of the lens holding hole 40 in the left-right direction when viewed from the front is 43.5 mm to 46.5 mm. Regarding high-prescription lenses, due to their high refractive index, when cut to accommodate larger lens shapes that are in high demand, such as those aiming to achieve a smaller face effect (big shape) or those giving a formal Wellington look, the wearer's profile distortion (reflection of the contour near the left and right ends of the lens) can easily become noticeable. The inventors of this utility model tested and demonstrated various lens shapes and sizes, and found that by setting the maximum width D1 of the lens holding hole 40 in the left-right direction when viewed from the front to 46.5 mm or less, the impression of the larger lens shape, which is in high demand as described above, can be retained, while obtaining glasses with less noticeable profile distortion. Furthermore, by setting the maximum width D1 of the lens holding hole 40 in the left-right direction when viewed from the front to 43.5 mm or more, a wider field of vision can be ensured compared to conventional high-prescription lenses where the lens shape tends to become smaller. Since the width of the lens will not become too small, it is possible to use designs that are in high demand under normal circumstances to make glasses for high-prescription lenses.
[0059] Each annular lens ring 20 has a width D2 of 2 mm or more when viewed from the front. When viewed from the front, the annular lens ring 20 appears as a circle surrounding the wearer's eyes. High-prescription lenses have a high refractive index, making the eyes appear smaller; however, if the circle surrounding the eyes has a certain width relative to the eyes, it creates the illusion that the eyes appear larger. The inventors of this utility model tested and demonstrated various lens ring widths and found that by setting the width D2 of each annular lens ring 20 to 2 mm or more when viewed from the front, it is possible to use this illusion to make the eyes appear larger. Therefore, in the eyeglasses 1 for high-prescription lenses, the problem of the eyes appearing smaller can be reduced.
[0060] On the front 22a of each of a pair of post heads 22, multiple marks 80 of different sizes are arranged side by side along the left-right direction X, with the size of the multiple marks 80 gradually decreasing from the inside to the outside of the post head 22. This creates a perspective effect at the post head 22, thus potentially producing an illusion of depth to the wearer's eyes. It should be noted that in this embodiment, the marks 80 are circular, with two on each side, but the shape and number are not limited to this. For example, three rectangular marks could be arranged on each side, gradually decreasing in size from the inside to the outside.
[0061] The temple 11 has a wider temple tail 101 than the front portion 100. The temple tail 101 has an inner surface 101a that slopes outwards from the upper part compared to the lower part, and is configured to clamp the wearer's head. Therefore, even if the front frame 10 becomes heavier due to the weight of the high-prescription lens 30, it can prevent the front frame 10 from shifting forward and falling off. Furthermore, because the temple tail 10 of the temple 11 is heavier, the center of gravity is located at the rear, which can further prevent the front frame 10 from shifting forward and falling off.
[0062] The eyeglasses 1 for high-prescription lenses are not limited to the structure described in the above embodiments. The structure, shape, size, etc. of the front frame 10 and temples 11 are not limited to the structure, shape, size, etc. of the above embodiments.
[0063] The embodiments of this utility model further include the following forms.
[0064] (Note 1)
[0065] A spectacle frame for high-prescription lenses, specifically for correcting myopia, and comprising:
[0066] Front frame; and
[0067] A pair of temples, which connect to the left and right ends of the aforementioned front frame.
[0068] The aforementioned front frame includes:
[0069] A pair of annular rings, which are designated to hold the lens retaining hole for high-prescription lenses; and
[0070] The central beam connects the aforementioned pair of annular mirror rings to each other.
[0071] Each of the aforementioned pair of annular lens rings has a back surface that is inclined in a manner in which the thickness decreases from the outer peripheral edge toward the inner peripheral edge in at least a portion of the outer region of the lens ring located outside the lens retaining hole.
[0072] (Note 2)
[0073] According to Note 1, the thickness of the outer peripheral edge of the annular lens ring in the outer region of the lens ring on the back side is greater than the thickness of the outer peripheral edge of the high-prescription lens in which the optical center of a single-focal lens with a power of -10.00D and a refractive index of 1.74 is set at the center of the lens holding hole and has been machined.
[0074] (Note 3)
[0075] According to Note 1 or 2, the thickness of the inner peripheral edge of the annular lens ring in the outer region of the lens ring on the back side is less than the thickness of the outer peripheral edge of the high-prescription lens in which the optical center of a single-focal lens with a power of -10.00D and a refractive index of 1.74 is set at the center of the lens holding hole and has been machined.
[0076] (Note 4)
[0077] According to any one of Notes 1 to 3, for a high-prescription lens frame, the thickness difference between the outer peripheral edge and the inner peripheral edge in the outer region of the annular lens ring on the back side is 1 mm or more.
[0078] (Note 5)
[0079] A spectacle frame for high-prescription lenses according to any one of Notes 1 to 4, wherein, when viewed from above, the thickness of each of the aforementioned annular lenses decreases from the temple side at the left and right ends of the front frame toward the bridge side.
[0080] (Note 6)
[0081] A spectacle frame for high-prescription lenses according to any one of Notes 1 to 5, wherein the thickness difference between the outer peripheral edge and the inner peripheral edge in the outer region of the lens rim is greater than the thickness difference between the outer peripheral edge and the inner peripheral edge in the inner region of the lens rim located inside the lens retaining hole.
[0082] (Note 7)
[0083] For spectacle frames for high-prescription lenses according to any one of Notes 1 to 6, the maximum width of the lens retaining hole of each of the aforementioned annular rims in the left-right direction when viewed from the front is 43.5 mm or more and 46.5 mm or less.
[0084] (Note 8)
[0085] Spectacular frames for high-prescription lenses according to any one of notes 1 to 7, wherein each of the aforementioned annular rims has a width of 2 mm or more when viewed from the front.
[0086] (Note 9)
[0087] Spectacular frames for high-prescription lenses according to any one of Notes 1 to 8, wherein...
[0088] The aforementioned front frame further includes a pair of posts that protrude outwards from the respective annular lens rings in the left-right direction when viewed from the front, and connect to the aforementioned temples.
[0089] On the front of each of the aforementioned pair of pile heads, there are multiple markings of different sizes arranged side by side in the left-right direction.
[0090] The size of the aforementioned markings gradually decreases from the inside of the pile head toward the outside.
[0091] (Note 10)
[0092] Spectacular frames for high-prescription lenses according to any one of notes 1 to 9, wherein...
[0093] The aforementioned temple has a wider temple tail compared to the rest of the temple.
[0094] The aforementioned temple has an inner surface that is inclined outwards from the upper part compared to the lower part, and is configured to clamp the wearer's head.
[0095] (Note 11)
[0096] A pair of eyeglasses in which a high-prescription lens of -6.00D or higher is mounted on an eyeglass frame for high-prescription lenses as described in any one of Notes 1 to 10.
[0097] (Note 12)
[0098] A spectacle frame for high-prescription lenses, specifically for correcting myopia, and comprising:
[0099] Front frame; and
[0100] A pair of temples, which connect to the left and right ends of the aforementioned front frame.
[0101] The aforementioned front frame includes:
[0102] A pair of annular lens rings, each having a lens holding hole for holding high-prescription lenses;
[0103] The central beam connects the aforementioned pair of annular mirror rings to each other; and
[0104] A pair of posts protrude outwards from the left and right sides of each of the aforementioned annular lens rings when viewed from the front, and connect to the aforementioned temples.
[0105] The maximum width of the lens retaining hole of each of the aforementioned annular lens rings in the lateral direction when viewed from the front is between 43.5 mm and 46.5 mm.
[0106] Each of the above-mentioned annular lenses has a width of more than 2 mm when viewed from the front.
[0107] (Note 13)
[0108] According to the eyeglass frames for high-prescription lenses described in Note 12, wherein...
[0109] The thickness of at least a portion of the outer peripheral edge of the region outside the lens ring located outside the lens retaining hole is greater than the thickness of the outer peripheral edge of the high-prescription lens in which the optical center of the -10.00D, 1.74 single-focal lens is set at the center of the lens retaining hole and has been machined.
[0110] (Note 14)
[0111] According to the eyeglass frames for high-prescription lenses described in Note 12 or 13, wherein...
[0112] The thickness of at least a portion of the inner peripheral edge of the outer region of the aforementioned lens ring is less than the thickness of the outer peripheral edge of a high-prescription lens in which the optical center of a single-focal lens with a power of -10.00D and a refractive index of 1.74 is set at the center of the lens retaining hole and has been machined.
[0113] (Note 15)
[0114] Spectacular frames for high-prescription lenses according to any one of notes 12 to 14, wherein,
[0115] On the front of each of the aforementioned pair of pile heads, there are multiple markings of different sizes arranged side by side in the left-right direction.
[0116] The size of the aforementioned markings gradually decreases from the inside of the pile head toward the outside.
[0117] (Note 16)
[0118] Spectacular frames for high-prescription lenses according to any one of notes 12 to 15, wherein,
[0119] The aforementioned temple has a wider temple tail compared to the rest of the temple.
[0120] The aforementioned temple has an inner surface that is inclined outwards from the upper part compared to the lower part, and is configured to clamp the wearer's head.
[0121] (Note 17)
[0122] A pair of eyeglasses having a high-prescription lens of -6.00D or higher mounted on a frame for high-prescription lenses as described in any one of notes 12 to 16.
[0123] The descriptions in the above embodiments are for illustrative purposes only and are not intended to limit the scope of this utility model. Various modifications can be made to the above embodiments without departing from the scope and spirit of this utility model. For example, some components of one embodiment can be added to other embodiments. Furthermore, some components of one embodiment can be substituted for corresponding components of other embodiments.
[0124] Industrial availability
[0125] This invention can be used to provide eyeglasses for high-prescription lenses that reduce problems unique to high-prescription eyeglasses, such as the thickness of the lenses being a concern and the lenses easily shifting due to their weight.
[0126] Symbol Explanation
[0127] 1……Eyeglasses for high-prescription lenses, 10……Front frame, 11……Template, 20……Ring lens, 20a……Outer region of the ring lens, 20d……Inner region of the ring lens, 22……Stem, 30……High-prescription lens, 40……Lens retention hole, 51a……Back of the outer region of the ring lens.
Claims
1. A spectacle frame for high-prescription lenses, characterized in that, have: Front frame; and A pair of temples, the pair of temples being connected to the left and right ends of the front frame. The front frame includes: A pair of annular lens rings, wherein the pair of annular lens rings define a lens retaining hole for holding high-power lenses; and The central beam connects the pair of annular mirror rings to each other. Each of the pair of annular lens rings has a back surface that slopes in a manner that decreases in thickness from the outer peripheral edge toward the inner peripheral edge, in at least a portion of the outer region of the lens ring located outside the lens retaining hole.
2. The spectacle frame for high-prescription lenses according to claim 1, wherein, The thickness of the outer peripheral edge of the annular lens ring on the back side is greater than the thickness of the outer peripheral edge of a high-prescription lens for which the optical center of a -10.00D, 1.74 single-focal lens is set at the center of the lens retaining hole and has been machined.
3. The spectacle frame for high-prescription lenses according to claim 2, wherein, The thickness of the inner peripheral edge of the annular lens ring on the outer region of the lens ring on the back side is less than the thickness of the outer peripheral edge of a high-prescription lens in which the optical center of a single-focal lens with a power of -10.00D and a refractive index of 1.74 is set at the center of the lens retaining hole and has been machined.
4. The spectacle frame for high-prescription lenses according to claim 1, wherein, The annular lens ring has a thickness difference of more than 1 mm between the outer peripheral edge and the inner peripheral edge in the outer region of the lens ring on the back side.
5. The spectacle frame for high-prescription lenses according to claim 1, wherein, When viewed from above, the thickness of each of the annular lens rings decreases from the temple side at both ends of the front frame toward the center beam side.
6. The spectacle frame for high-prescription lenses according to claim 1, wherein, The thickness difference between the outer peripheral edge and the inner peripheral edge in the outer region of the lens ring is greater than the thickness difference between the outer peripheral edge and the inner peripheral edge in the inner region of the lens ring located inside the lens retaining hole.
7. The spectacle frame for high-prescription lenses according to any one of claims 1 to 6, wherein, The maximum width of the lens retaining hole of each annular lens ring in the left-right direction when viewed from the front is between 43.5 mm and 46.5 mm.
8. The spectacle frame for high-prescription lenses according to any one of claims 1 to 6, wherein, Each of the annular lenses has a width of more than 2 mm when viewed from the front.
9. The spectacle frame for high-prescription lenses according to any one of claims 1 to 6, wherein, The front frame further includes a pair of posts that protrude outwards from the respective annular lens rings in the left-right direction when viewed from the front, and connect to the temples. On the front of each pair of pile heads, multiple marks of different sizes are arranged side by side in the left-right direction. The size of the plurality of marks gradually decreases from the inside of the pile head toward the outside.
10. The spectacle frame for high-prescription lenses according to any one of claims 1 to 6, wherein, The temple has a wider temple tail compared to the rest of the temple. The temple has an inner surface that is inclined outwards from the upper part compared to the lower part, and is configured to clamp the wearer's head.
11. A pair of eyeglasses, characterized in that, A high-power lens with a power of -6.00D or higher is mounted on an eyeglass frame for a high-power lens according to any one of claims 1 to 6.
12. A spectacle frame for high-prescription lenses, characterized in that, have: Front frame; and A pair of temples, which are connected to the left and right ends of the front frame. The front frame includes: A pair of annular lens rings, the pair of annular lens rings having lens holding holes for holding high-prescription lenses; The central beam connects the pair of annular mirror rings to each other; and A pair of posts, which protrude outwards from the left and right sides of each annular lens ring when viewed from the front, and connect to the temples. The maximum width of the lens retaining hole of each annular lens ring in the left-right direction when viewed from the front is between 43.5 mm and 46.5 mm. Each of the annular lenses has a width of more than 2 mm when viewed from the front.
13. The spectacle frame for high-prescription lenses according to claim 12, wherein, The thickness in at least a portion of the outer peripheral edge of the region outside the lens ring located outside the lens retaining hole is greater than the thickness in the outer peripheral edge of a high-prescription lens in which the optical center of a -10.00D, 1.74 single-focal lens is set at the center of the lens retaining hole and has been machined.
14. The spectacle frame for high-prescription lenses according to claim 13, wherein, The thickness of at least a portion of the inner peripheral edge of the outer region of the lens ring is less than the thickness of the outer peripheral edge of a high-prescription lens in which the optical center of a -10.00D, 1.74 refractive index single-focal lens is set at the center of the lens retaining hole and has been machined.
15. The spectacle frame for high-prescription lenses according to any one of claims 12 to 14, wherein, On the front of each pair of pile heads, multiple marks of different sizes are arranged side by side in the left-right direction. The size of the plurality of marks gradually decreases from the inside of the pile head toward the outside.
16. The spectacle frame for high-prescription lenses according to any one of claims 12 to 14, wherein, The temple has a wider temple tail compared to the rest of the temple. The temple has an inner surface that is inclined outwards from the upper part compared to the lower part, and is configured to clamp the wearer's head.
17. A pair of eyeglasses, characterized in that, A high-power lens with a power of -6.00D or higher is mounted on an eyeglass frame for a high-power lens according to any one of claims 12 to 14.