WO2024262170A1 - 眼鏡、および、眼鏡レンズ - Google Patents
眼鏡、および、眼鏡レンズ Download PDFInfo
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- WO2024262170A1 WO2024262170A1 PCT/JP2024/016915 JP2024016915W WO2024262170A1 WO 2024262170 A1 WO2024262170 A1 WO 2024262170A1 JP 2024016915 W JP2024016915 W JP 2024016915W WO 2024262170 A1 WO2024262170 A1 WO 2024262170A1
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- Prior art keywords
- clear area
- area
- peripheral
- central
- refractive power
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C5/00—Constructions of non-optical parts
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/06—Lenses; Lens systems ; Methods of designing lenses bifocal; multifocal ; progressive
Definitions
- the objective of one embodiment of the present invention is to provide a technology that, in eyeglasses having eyeglass lenses that have the effect of inhibiting the progression of myopia or reducing hyperopia, prevents the wearer from developing the habit of looking up or down while still ensuring peripheral vision, making it easier to obtain the effect of inhibiting the progression of myopia or reducing hyperopia.
- a second aspect of the present invention is a method for producing a composition comprising the steps of: In the eyeglasses according to the first aspect, the horizontal width of the peripheral clear area on a horizontal line passing through the eye point is larger than the circular equivalent diameter of the central clear area.
- a third aspect of the present invention is a method for producing a composition comprising the steps of: The eyeglasses according to the first aspect, wherein the peripheral clear area has a width in the vertical direction of 2.5 mm or more and 5.0 mm or less.
- a fourth aspect of the present invention is a method for producing a composition comprising the steps of: In the eyeglasses according to the first aspect, the central clear area is sized to fit within a circle having a diameter of 4 mm to 13 mm centered on the eyepoint.
- a fifth aspect of the present invention is a method for producing a composition comprising the steps of: The eyeglasses according to the first aspect, wherein the area of the central clear area is 4% or more and 16% or less of the sum of the areas of the central clear area and the function area.
- a sixth aspect of the present invention is a method for producing a composition
- the eyeglasses according to any one of the first to fifth aspects further include a frame having a vertical width of 27 mm to 38 mm and a horizontal width of 42 mm to 50 mm.
- a seventh aspect of the present invention is a method for producing a composition
- a spectacle lens having an effect of inhibiting the progression of myopia or reducing hyperopia, A central clear area that realizes the wearer's prescribed refractive power and includes the eye point of the spectacle lens; a ring-shaped functional area having a portion having a refractive power different from the prescribed refractive power and surrounding the central clear area; and an annular peripheral clear area that achieves the prescribed power and surrounds the functional area,
- This is a spectacle lens in which, when cut to fit a frame having a vertical width of 27 mm or more and 38 mm or less, the vertical width of the peripheral clear area on a vertical line passing through the eyepoint is smaller than the circular equivalent diameter of the central clear area.
- in eyeglasses having eyeglass lenses that have the effect of inhibiting the progression of myopia or reducing hyperopia it is possible to prevent the habit of looking up or down while still ensuring peripheral vision, making it easier to obtain the effect of inhibiting the progression of myopia or reducing hyperopia.
- FIG. 1 is a schematic plan view of the object side surface of a left-eye spectacle lens according to a first embodiment of the present invention.
- FIG. 2 is a schematic plan view showing an example of a spectacle lens having an effect of inhibiting the progression of myopia according to a reference example.
- FIG. 2 is a schematic plan view showing an example of a spectacle lens having a myopia progression suppression effect according to a reference example.
- the spectacle lens 100 according to the reference example has a central clear area 110, a functional area 120, and a peripheral clear area 130.
- the central clear area 110 and the peripheral clear area 130 are areas with good visibility that realize the prescribed refractive power of the wearer.
- the functional area 120 for example, has a plurality of convex areas formed therein, and is an area with poor visibility compared to the central clear area 110 and the peripheral clear area 130. With these configurations, the spectacle lens 100 has a myopia progression suppression effect. Details of each area will be described later.
- the spectacle lenses mentioned in this specification have an object-side surface and an eyeball-side surface.
- the "object-side surface” is the surface that is located on the object side when a wearer wears spectacles equipped with the spectacle lens
- the "eyeball-side surface” is the opposite, i.e., the surface that is located on the eyeball side when a wearer wears spectacles equipped with the spectacle lens.
- This relationship also applies to the lens substrate that forms the basis of the spectacle lenses.
- the lens substrate also has an object-side surface and an eyeball-side surface.
- the eye point is, for example, the position through which the line of sight passes when wearing the eyeglasses and looking straight ahead, and this example will be given hereinafter.
- the eye point may also be the position through which the line of sight passes when the wearer views an object close to the wearer (in other words, when looking at something close), that is, the near vision eye point.
- an example is given in which the geometric center of the eyeglass lens before it is fitted into the frame coincides with the eye point, coincides with the prism reference point, and coincides with the lens center.
- the eye point can be located by referring to a remark chart or centration chart issued by the lens manufacturer.
- Fig. 1 is a schematic plan view of the object side surface of an eyeglass lens 10 for the left eye of this embodiment.
- the eyeglass lens 10 of this embodiment is a myopia progression inhibiting lens that has a myopia progression inhibiting effect, and has a central clear area 11, a functional area 12, and a peripheral clear area 13.
- the eyeglass lens 10 of this embodiment is in a state where it is cut to fit a frame.
- the central clear area 11 is an area that realizes the prescribed refractive power of the wearer and includes the eye point of the eyeglass lens 10.
- the central clear area 11 is circular, and the center of the central clear area 11 coincides with the eye point of the eyeglass lens 10.
- the central clear area 11 is, for example, a transparent part with a smooth surface shape, and is an area that allows a light beam incident from the surface on the object side to exit from the surface on the eyeball side, enter the pupil of the wearer, and converge on the retina.
- the central clear area 11 allows the prescription power (spherical power, cylindrical power, cylindrical axis, etc.) to be achieved.
- This spherical power may be the power (distance power) that should be corrected when looking straight ahead (when the distance from the object is infinity to about 1 m), or it may be the power that should be corrected when looking at intermediate vision (when the distance from the object is about 1 m to 40 cm) or near vision (when the distance from the object is about 40 cm to 10 cm).
- the central clear area 11 does not include any structure (e.g., a convex or concave area) intended to have an effect of inhibiting the progression of myopia, etc.
- the central clear area 11 of this embodiment (as well as the base area 14 and peripheral clear area 13 in the functional area 12, which will be described later) functions as a so-called single-focus lens.
- the surface shape There are no particular limitations on the surface shape, but this embodiment illustrates an example in which the central clear area 11 has a spherical shape.
- the functional region 12 is an annular region that has a portion with a refractive power different from the prescribed refractive power of the wearer and surrounds the central clear region 11.
- the functional region 12 has a plurality of convex regions 15 (also called defocus regions) in an island shape as a portion with a refractive power different from the prescribed refractive power of the wearer. More specifically, as shown in FIG. 1, the convex regions 15 are independently and discretely arranged so that the center of each convex region 15 is the apex of an equilateral triangle.
- the portion other than the convex region 15 is a base region 14 that performs the same function as the central clear region 11.
- the functional region 12 is, for example, a region that causes a light beam incident from the object side surface to exit from the eyeball side surface, while at least a portion of the light beam incident into the wearer's pupil is not converged on the retina, and as a result, the eyeglass lens 10 of this embodiment has an effect of suppressing the progression of myopia.
- the functional area 12 may be defined as a circle centered on the eyepoint and tangent to the convex area 15 closest to the eyepoint, and a circle tangent to the convex area 15 furthest from the eyepoint.
- the multiple convex regions 15 may be formed on at least one of the object side surface or the eyeball side surface of the eyeglass lens 10. In this embodiment, a case where multiple convex regions 15 are provided only on the object side surface of the eyeglass lens 10 is illustrated.
- the surface shape of the convex regions 15 is preferably, for example, a spherical shape.
- the number of multiple convex regions 15 in the functional region 12 is not particularly limited, but is, for example, 20 to 500.
- the multiple convex regions 15 are arranged, for example, in an island shape (i.e., spaced apart and not adjacent to each other). It is preferable that the arrangement of the multiple convex regions 15 has a periodicity. This can reduce discomfort such as blurring in a specific direction and improve the wearing comfort of the eyeglass lens 10.
- the diameter of the convex region 15 in a planar view is preferably, for example, 0.6 mm or more and 2.0 mm or less.
- the pitch of the convex regions 15 (the distance between the centers of adjacent convex regions 15) is preferably, for example, 1.0 mm or more and 2.0 mm or less.
- the difference (defocus power) between the refractive power of the convex region 15 and the refractive power of the portion other than the convex region 15 is preferably, for example, 0.5 D or more and 10 D or less.
- convex regions 15 may be located in areas other than the functional region 12. However, from the perspective of improving the wearing comfort of the eyeglass lens 10, it is preferable that, for example, 80% or more (more preferably 90% or more) of all the convex regions 15 provided on the eyeglass lens 10 are located in the functional region 12.
- the area ratio of the convex region 15 is preferably, for example, 30% or more and 60% or less (more preferably 40% or more and 60% or less). If the area ratio of the convex region 15 is less than 30%, it is possible that the effect of inhibiting the progression of myopia may not be sufficiently obtained. In contrast, by making the area ratio of the convex region 15 30% or more, it is possible to sufficiently obtain the effect of inhibiting the progression of myopia. On the other hand, if the area ratio of the convex region 15 exceeds 60%, it is possible that the wearing comfort and appearance of the eyeglass lens 10 may be adversely affected. In contrast, by making the area ratio of the convex region 15 60% or less, it is possible to maintain the wearing comfort and appearance of the eyeglass lens 10.
- the peripheral clear area 13 is an annular area that realizes the wearer's prescribed refractive power and surrounds the functional area 12. In this embodiment, the peripheral clear area 13 performs the same function as the central clear area 11. In addition, since the peripheral clear area 13 is provided along the outer periphery of the eyeglass lens 10 so as to surround the functional area 12, a minimum level of peripheral vision can be ensured.
- the central clear area 11 and the peripheral clear area 13 are areas with good visibility that realize the prescribed refractive power of the wearer.
- the functional area 12 has multiple convex areas 15 formed therein, and is an area with poorer visibility than the central clear area 11 and the peripheral clear area 13. Therefore, for example, if the central clear area 11 is narrow and the peripheral clear area 13 is wide, the wearer may shift the glasses up or down and look at objects with their eyes looking up or down (using the peripheral clear area 13 to look at objects). If this condition becomes a habit, it may become difficult to achieve the effect of inhibiting the progression of myopia, and it may also cause strabismus or poor posture.
- the vertical width of the peripheral clear area 13 on a vertical line passing through the eyepoint is smaller than the circle-equivalent diameter d of the central clear area 11.
- the vertical width of the peripheral clear area 13 on a vertical line passing through the eyepoint can be measured at two points, top and bottom, of the eyeglass lens 10, and both the vertical width w1 (top side of FIG. 1) and the horizontal width w2 (bottom side of FIG. 1) are smaller than the circle-equivalent diameter d of the central clear area 11.
- the widths w1 and w2 are greater than 0 mm. Also, from the viewpoint of further suppressing the motivation to use the peripheral clear area 13 to look at things, it is preferable that the widths w1 and w2 are smaller than ( ⁇ /4)d.
- the horizontal width of the peripheral clear area 13 on a horizontal line passing through the eye point is preferably larger than the circle-equivalent diameter d of the central clear area 11.
- the horizontal width of the peripheral clear area 13 on a horizontal line passing through the eye point can be measured at two points, the left and right, of the eyeglass lens 10, and it is preferable that at least one of the width w3 on the nose side (left side of FIG. 1) or the width w4 on the ear side (right side of FIG. 1) is larger than the circle-equivalent diameter d of the central clear area 11. This makes it easier to ensure sufficient peripheral vision and improves safety.
- the width w3 or width w4 is larger than the circle-equivalent diameter d of the central clear area 11, the motivation to see an object using the peripheral clear area 13 is suppressed.
- the width w4 on the ear side is larger than the width w3 on the nose side, both from the viewpoint of ensuring peripheral vision and from the viewpoint of suppressing the motivation to see an object using the peripheral clear area 13.
- width w1 and width w2 are, for example, 2.5 mm or more and 5.0 mm or less. If width w1 and width w2 are less than 2.5 mm, there is a possibility that peripheral vision in the vertical direction may be insufficient. In contrast, by making width w1 and width w2 2.5 mm or more, it is possible to ensure sufficient peripheral vision in the vertical direction. On the other hand, if width w1 and width w2 exceed 5.0 mm, there is an increased possibility that the wearer will use the peripheral clear area 13 to view objects, and it may be difficult to obtain the effect of inhibiting myopia progression, etc.
- width w1 and width w2 5.0 mm or less it becomes difficult to view objects using the peripheral clear area 13, and it becomes easier to obtain the effect of inhibiting myopia progression, etc.
- making width w1 and width w2 5.0 mm or less corresponds to making the width of the high visibility area equal to or less than the pupil diameter of the wearer when the wearer looks up or down, for example, and making width w1 and width w2 2.5 mm or more corresponds to making the width of the high visibility area equal to or more than half the pupil diameter of the wearer, for example.
- the maximum vertical width of the peripheral clear area 13 on a vertical line passing through the central clear area 11 is smaller than the circle-equivalent diameter d of the central clear area 11. This reduces the motivation to use the peripheral clear area 13 to look at things even when the line of sight moves slightly left or right from the eyepoint, and suppresses the habit of looking up or down, making it easier to achieve the effect of inhibiting the progression of myopia. Also, it is more preferable that the maximum vertical width of the peripheral clear area 13 on a vertical line passing through the central clear area 11 is, for example, 2.5 mm or more and 5.0 mm or less.
- the central clear area 11 is preferably sized to fit within a circle having a diameter of 4 mm to 13 mm (more preferably 6 mm to 11 mm) centered on the eyepoint. This improves the comfort of wearing the spectacles and provides a sufficient effect of inhibiting the progression of myopia.
- the central clear area 11 is circular and the center of the central clear area 11 coincides with the eyepoint, as in this embodiment, the central clear area 11 fitting within a circle having a diameter of 4 mm to 13 mm and centered on the eyepoint can be rephrased as the circle-equivalent diameter d of the central clear area 11 being 4 mm to 13 mm.
- the area of the central clear region 11 is preferably 4% to 16% of the sum of the areas of the central clear region 11 and the functional region 12 (corresponding to the diameter of the central clear region 11 being 25% to 40% of the outer diameter of the functional region 12), and more preferably 6.3% to 12.3% (corresponding to the diameter of the central clear region 11 being 25% to 35% of the outer diameter of the functional region 12). If the area of the central clear region 11 is smaller than 4% of the sum of the areas of the central clear region 11 and the functional region 12, it may be difficult to find a clear zone in the functional region 12, and the motivation to see things using the peripheral clear region 13 may be easily induced.
- the functional region 12 may be relatively insufficient, and the effect of inhibiting the progression of myopia may be difficult to work.
- the wearer can easily recognize the central clear region 11, and the functional region 12 can effectively function, making it easier to obtain effects such as suppressing the progression of myopia.
- the frame of the eyeglasses of this embodiment has, for example, a vertical width L1 of 27 mm to 38 mm and a horizontal width L2 (also called the lens width) of 42 mm to 50 mm.
- the above frame size is intended for a typical frame for children, but for example, a frame with a vertical width L1 of 30 mm or less may cause the eyeglasses to be shifted down and objects to be viewed from outside the frame. Therefore, taking the above problems into consideration, it is more preferable that the frame of the eyeglasses of this embodiment has a vertical width L1 of 31 mm to 38 mm.
- the lens substrate constituting the eyeglass lens 10
- various lens substrates generally used can be used.
- the lens substrate may be, for example, a plastic lens substrate or a glass lens substrate.
- the glass lens substrate may be, for example, a lens substrate made of inorganic glass.
- a plastic lens substrate is preferable from the viewpoint of being lightweight and difficult to break.
- plastic lens substrate examples include styrene resins such as (meth)acrylic resins, polycarbonate resins, allyl resins, allyl carbonate resins such as diethylene glycol bisallyl carbonate resin (CR-39), vinyl resins, polyester resins, polyether resins, urethane resins obtained by reacting an isocyanate compound with a hydroxy compound such as diethylene glycol, thiourethane resins obtained by reacting an isocyanate compound with a polythiol compound, and a cured product (generally called a transparent resin) obtained by curing a curable composition containing a (thio)epoxy compound having one or more disulfide bonds in the molecule.
- styrene resins such as (meth)acrylic resins, polycarbonate resins, allyl resins, allyl carbonate resins such as diethylene glycol bisallyl carbonate resin (CR-39), vinyl resins, polyester resins, polyether resins, urethane resin
- the curable composition may be referred to as a polymerizable composition.
- a non-dyed one colorless lens
- a dyed one dyed lens
- the thickness of the lens substrate is not particularly limited, but may be, for example, about 1 to 30 mm in thickness (center thickness).
- the refractive index of the lens substrate may be, for example, about 1.60 to 1.75. However, the refractive index of the lens substrate is not limited to this range, and may be within this range or may be above or below this range. In this specification, the refractive index refers to the refractive index for light with a wavelength of 500 nm.
- the present invention can also be applied to eyeglass lenses that have the effect of reducing hyperopia, and to eyeglasses having such eyeglass lenses.
- the central clear area, functional area, and peripheral clear area can be designed so that, for example, when the eyeglass lens 10 is cut to fit a frame with a vertical width of 27 mm to 38 mm (preferably 31 mm to 38 mm), the vertical width of the peripheral clear area on a vertical line passing through the eye point is smaller than the circle equivalent diameter of the central clear area.
- the central clear area, functional area, and peripheral clear area are designed so that, for example, when the eyeglass lens 10 is cut to fit a frame with a horizontal width of 42 mm to 50 mm, the horizontal width of the peripheral clear area on a horizontal line passing through the eye point is larger than the circle equivalent diameter of the central clear area.
- the horizontal width of the peripheral clear area on a horizontal line passing through the eye point is larger than the circle equivalent diameter of the central clear area.
- glasses samples 1 to 6 were designed as glasses having spectacle lenses that have the effect of inhibiting the progression of myopia.
- a model was used in which the center of the frame box, the center of the lens, and the center of each area (central clear area, functional area, peripheral clear area) were all at the same point (matching the eyepoint).
- Two types of frames were used: a frame (Frame A) for lower elementary students with a vertical width of 29 mm and a horizontal width of 44 mm, and a frame (Frame B) for upper elementary students with a vertical width of 36 mm and a horizontal width of 48 mm.
- a spectacle lens (lens 1) with a central clear area having a circular equivalent diameter of 7.8 mm and a functional area having an outer diameter of 26.1 mm was applied to frame 1.
- the vertical width of the peripheral clear area was smaller than the circular equivalent diameter of the central clear area. This reduces the motivation to shift the glasses up and down and use the peripheral clear area to look at objects, making it easier to achieve the effect of inhibiting the progression of myopia.
- the vertical width of the peripheral clear area is 0 mm, so from the perspective of ensuring a minimum level of peripheral vision, Samples 1 to 4 are preferable.
- the vertical width of the peripheral clear area is larger than the circular equivalent diameter of the central clear area, so people end up looking at objects using the peripheral clear area, which may make it difficult to achieve the effect of inhibiting the progression of myopia.
- the horizontal width of the peripheral clear area was larger than the circular equivalent diameter of the central clear area. This makes it easier to ensure sufficient peripheral vision and increases safety.
- the horizontal width of the peripheral clear area was smaller than the circular equivalent diameter of the central clear area, which may make it difficult to ensure peripheral vision.
- the vertical width of the peripheral clear area was within the range of 2.5 mm to 5.0 mm. This makes it easier to obtain the effect of inhibiting the progression of myopia while ensuring sufficient peripheral vision in the vertical direction. Therefore, it can be said that the design of lens 2 is more preferable for frame A, and the design of lens 1 is more preferable for frame B.
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Abstract
Description
近視進行抑制効果または遠視軽減効果を奏する眼鏡レンズを有する眼鏡であって、
前記眼鏡レンズは、
装用者の処方屈折力を実現し、前記眼鏡レンズのアイポイントを含む中心クリア領域と、
前記処方屈折力とは異なる屈折力を持つ部分を有し、前記中心クリア領域を包囲する環状のファンクショナル領域と、
前記処方屈折力を実現し、前記ファンクショナル領域を包囲する環状の周辺クリア領域と、を有し、
前記アイポイントを通る天地方向の直線上における前記周辺クリア領域の天地方向の幅は、前記中心クリア領域の円相当径よりも小さい、眼鏡である。
前記アイポイントを通る水平方向の直線上における前記周辺クリア領域の水平方向の幅は、前記中心クリア領域の円相当径よりも大きい、上記第1の態様に記載の眼鏡である。
前記周辺クリア領域の天地方向の幅は、2.5mm以上5.0mm以下である、上記第1の態様に記載の眼鏡である。
前記中心クリア領域は、前記アイポイントを中心とした直径4mm以上13mm以下の円内に収まる大きさである、上記第1の態様に記載の眼鏡である。
前記中心クリア領域の面積は、前記中心クリア領域および前記ファンクション領域の面積の和に対して、4%以上16%以下である、上記第1の態様に記載の眼鏡である。
天地幅が27mm以上38mm以下、かつ、水平幅が42mm以上50mm以下であるフレームをさらに有する、上記第1から第5のいずれか1つの態様に記載の眼鏡である。
近視進行抑制効果または遠視軽減効果を奏する眼鏡レンズであって、
装用者の処方屈折力を実現し、前記眼鏡レンズのアイポイントを含む中心クリア領域と、
前記処方屈折力とは異なる屈折力を持つ部分を有し、前記中心クリア領域を包囲する環状のファンクショナル領域と、
前記処方屈折力を実現し、前記ファンクショナル領域を包囲する環状の周辺クリア領域と、を有し、
天地幅が27mm以上38mm以下であるフレームに合わせてカットした際に、前記アイポイントを通る天地方向の直線上における前記周辺クリア領域の天地方向の幅は、前記中心クリア領域の円相当径よりも小さい、眼鏡レンズである。
まず、発明者が得た知見について説明する。図2は、参考例に係る近視進行抑制効果を奏する眼鏡レンズの一例を示す平面模式図である。図2に示すように、参考例に係る眼鏡レンズ100は、中心クリア領域110と、ファンクショナル領域120と、周辺クリア領域130と、を有している。中心クリア領域110および周辺クリア領域130は、装用者の処方屈折力を実現している視認性のよい領域である。一方、ファンクショナル領域120は、例えば、複数の凸状領域が形成されており、中心クリア領域110および周辺クリア領域130に比べて視認性の悪い領域である。これらの構成により、眼鏡レンズ100は近視進行抑制効果を奏する。なお、それぞれの領域の詳細は後述する。
次に、本発明の一実施形態を、以下に図面を参照しつつ説明する。なお、本発明はこれらの例示に限定されるものではなく、特許請求の範囲によって示され、特許請求の範囲と均等の意味および範囲内でのすべての変更が含まれることが意図される。
図1は、本実施形態の左眼用の眼鏡レンズ10の物体側の面の平面模式図である。本実施形態の眼鏡レンズ10は、近視進行抑制効果を奏する近視進行抑制レンズであって、中心クリア領域11と、ファンクショナル領域12と、周辺クリア領域13と、を有している。本実施形態の眼鏡レンズ10は、図1に示すように、フレームに合わせてカットされた状態である。
以上、本発明の実施形態について具体的に説明したが、本発明は上述の実施形態に限定されるものではなく、その要旨を逸脱しない範囲で種々変更可能である。
・レンズ基材:PC(ポリカーボネート)
・レンズ基材の屈折率:1.589
・処方屈折力(球面屈折力):0.00D
・処方屈折力(乱視屈折力):0.00D
・ファンクショナル領域の構成:凸状領域を島状に配置
・凸状領域の形状:球面
・凸状領域の屈折力:3.50D
・凸状領域の形成面:物体側の面
・凸状領域の配置態様:各凸状領域の中心が正三角形の頂点となるように配置
・凸状領域の平面視での形状:円形(直径1.00mm)
・凸状領域のピッチ(隣接する凸状領域の中心間距離):1.50mm
11、110 中心クリア領域
12、120 ファンクショナル領域
13、130 周辺クリア領域
14 ベース領域
15 凸状領域
Claims (7)
- 近視進行抑制効果または遠視軽減効果を奏する眼鏡レンズを有する眼鏡であって、
前記眼鏡レンズは、
装用者の処方屈折力を実現し、前記眼鏡レンズのアイポイントを含む中心クリア領域と、
前記処方屈折力とは異なる屈折力を持つ部分を有し、前記中心クリア領域を包囲する環状のファンクショナル領域と、
前記処方屈折力を実現し、前記ファンクショナル領域を包囲する環状の周辺クリア領域と、を有し、
前記アイポイントを通る天地方向の直線上における前記周辺クリア領域の天地方向の幅は、前記中心クリア領域の円相当径よりも小さい、眼鏡。 - 前記アイポイントを通る水平方向の直線上における前記周辺クリア領域の水平方向の幅は、前記中心クリア領域の円相当径よりも大きい、請求項1に記載の眼鏡。
- 前記周辺クリア領域の天地方向の幅は、2.5mm以上5.0mm以下である、請求項1に記載の眼鏡。
- 前記中心クリア領域は、前記アイポイントを中心とした直径4mm以上13mm以下の円内に収まる大きさである、請求項1に記載の眼鏡。
- 前記中心クリア領域の面積は、前記中心クリア領域および前記ファンクショナル領域の面積の和に対して、4%以上16%以下である、請求項1に記載の眼鏡。
- 天地幅が27mm以上38mm以下、かつ、水平幅が42mm以上50mm以下であるフレームをさらに有する、請求項1から請求項5のいずれか1項に記載の眼鏡。
- 近視進行抑制効果または遠視軽減効果を奏する眼鏡レンズであって、
装用者の処方屈折力を実現し、前記眼鏡レンズのアイポイントを含む中心クリア領域と、
前記処方屈折力とは異なる屈折力を持つ部分を有し、前記中心クリア領域を包囲する環状のファンクショナル領域と、
前記処方屈折力を実現し、前記ファンクショナル領域を包囲する環状の周辺クリア領域と、を有し、
天地幅が27mm以上38mm以下であるフレームに合わせてカットした際に、前記アイポイントを通る天地方向の直線上における前記周辺クリア領域の天地方向の幅は、前記中心クリア領域の円相当径よりも小さい、眼鏡レンズ。
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| AU2024312448A AU2024312448A1 (en) | 2023-06-22 | 2024-05-02 | Spectacles and spectacle lens |
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| JP2023102374A JP2025002298A (ja) | 2023-06-22 | 2023-06-22 | 眼鏡、および、眼鏡レンズ |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009511962A (ja) * | 2005-10-12 | 2009-03-19 | カール ツァイス ビジョン オーストラリア ホールディングス リミテッド | 近視矯正のための眼科用レンズ要素 |
| US20100085536A1 (en) * | 2008-10-07 | 2010-04-08 | Essilor International (Compagnie Generale D'optique) | Ophthalmic Eyeglass Correcting Both Foveal Vision and Peripheral Vision |
| JP2022039960A (ja) * | 2020-08-26 | 2022-03-10 | ホヤ レンズ タイランド リミテッド | 眼鏡レンズ、その設計方法及びその設計システム |
| JP2022545506A (ja) * | 2019-08-23 | 2022-10-27 | ブリエン ホールデン ビジョン インスティチュート リミテッド | ピントずれした光によるピントの合った像への干渉を低減、最小化、および/または除去するための眼用レンズ |
| JP2023526484A (ja) * | 2020-05-19 | 2023-06-21 | サイトグラス・ヴィジョン・インコーポレイテッド | 眼科用レンズ、その製造方法、及びそれを含む眼科用品の提供方法 |
-
2023
- 2023-06-22 JP JP2023102374A patent/JP2025002298A/ja active Pending
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2024
- 2024-05-02 WO PCT/JP2024/016915 patent/WO2024262170A1/ja active Pending
- 2024-05-02 AU AU2024312448A patent/AU2024312448A1/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009511962A (ja) * | 2005-10-12 | 2009-03-19 | カール ツァイス ビジョン オーストラリア ホールディングス リミテッド | 近視矯正のための眼科用レンズ要素 |
| US20100085536A1 (en) * | 2008-10-07 | 2010-04-08 | Essilor International (Compagnie Generale D'optique) | Ophthalmic Eyeglass Correcting Both Foveal Vision and Peripheral Vision |
| JP2022545506A (ja) * | 2019-08-23 | 2022-10-27 | ブリエン ホールデン ビジョン インスティチュート リミテッド | ピントずれした光によるピントの合った像への干渉を低減、最小化、および/または除去するための眼用レンズ |
| JP2023526484A (ja) * | 2020-05-19 | 2023-06-21 | サイトグラス・ヴィジョン・インコーポレイテッド | 眼科用レンズ、その製造方法、及びそれを含む眼科用品の提供方法 |
| JP2022039960A (ja) * | 2020-08-26 | 2022-03-10 | ホヤ レンズ タイランド リミテッド | 眼鏡レンズ、その設計方法及びその設計システム |
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| JP2025002298A (ja) | 2025-01-09 |
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