WO2023168773A1 - 一种眼镜片 - Google Patents

一种眼镜片 Download PDF

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Publication number
WO2023168773A1
WO2023168773A1 PCT/CN2022/084950 CN2022084950W WO2023168773A1 WO 2023168773 A1 WO2023168773 A1 WO 2023168773A1 CN 2022084950 W CN2022084950 W CN 2022084950W WO 2023168773 A1 WO2023168773 A1 WO 2023168773A1
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area
region
spectacle lens
lens according
lens
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PCT/CN2022/084950
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English (en)
French (fr)
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王传宝
樊红彬
严清波
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江苏康耐特光学有限公司
上海康耐特光学有限公司
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Priority to EP22871138.8A priority Critical patent/EP4270099A4/en
Publication of WO2023168773A1 publication Critical patent/WO2023168773A1/zh

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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
    • G02C7/022—Ophthalmic lenses having special refractive features achieved by special materials or material structures
    • 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
    • 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
    • G02C7/021—Lenses; Lens systems ; Methods of designing lenses with pattern for identification or with cosmetic or therapeutic effects
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/16—Shades; shields; Obturators, e.g. with pinhole, with slot
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C2202/00—Generic optical aspects applicable to one or more of the subgroups of G02C7/00
    • G02C2202/24—Myopia progression prevention

Definitions

  • the present invention belongs to the field of lenses, and relates to a spectacle lens, and more specifically, to a spectacle lens having the function of suppressing or at least slowing down the refractive error of human eyes.
  • Myopia is characterized by the eye focusing distant objects in front of its retina, while hyperopia is characterized by the eye focusing distant objects behind the retina.
  • Concave lenses are usually used to correct nearsightedness, and convex lenses are usually used to correct farsightedness.
  • the center part of the image is transmitted on the retina, but its peripheral parts are transmitted behind the retina, thus inducing the eyeball to grow behind the retina, the axial length of the eye, and the refractive state of the eye.
  • Myopia deepens and develops.
  • the center part of the image is transmitted on the retina, but its peripheral parts are transmitted in front of the retina, thus inducing the eyeball to grow in front of the retina, shortening the axial length of the eye, and affecting the refraction of the eye.
  • the state develops towards deepening of farsightedness.
  • patents include CN104678572B and CN11390809A. These patents generally correct vision refractive errors through the first area, and add positive or negative refractive power to the first area through the second area to make the peripheral parts of the image transmit in front of or in front of the retina. rear, thus having the function of inhibiting or at least slowing down the progression of myopia or hyperopia.
  • the above-mentioned lenses have problems such as difficulty in processing and high processing costs. As a result, the price is high, which is not conducive to the promotion and popularization of vision prevention and control lenses.
  • the purpose of the present invention is to solve the above shortcomings and provide a spectacle lens that corrects the refractive error of vision through the first area and limits the focus of the image behind or in front of the retina through the second area, thereby slowing down the development of myopia or hyperopia.
  • a spectacle lens including
  • the first area has refractive power based on correcting the refractive error of vision
  • the second area has the function of unfocused imaging
  • the first area and the second area are arranged on the lens surface, the second area includes a plurality of mutually independent sub-areas, and the first area is an area on the lens surface other than the second area.
  • the refractive power of the first area is obtained by adjusting the curvature difference of the front and rear surfaces of the lens.
  • the front and rear curvature difference is the required refractive power, which can be myopia refraction or hyperopia refraction.
  • the second area slows down the development of myopia or hyperopia by reducing the surface finish so that the second area does not focus the image behind or in front of the retina of the eye. Reducing the surface finish can keep the lens bright, but it will not focus or form an image.
  • the entire second region is an annular structure surrounding the optical center of the lens, and its inner edge and outer edge are both symmetrical shapes.
  • the shapes of the inner edge and outer edge may be the same or different.
  • the sub-regions of the second region are also symmetrically shaped.
  • the symmetrical shape satisfies both axial symmetry and central symmetry, including but not limited to circles, squares or regular hexagons, and may also be other regular polygons that satisfy axial symmetry and central symmetry.
  • the maximum diameter of the first region surrounded by the inner edge of the second region is 5.0 mm to 20 mm, and the maximum diameter of the sub-region in the second region is 0.1 mm to 2.0 mm.
  • the maximum diameter is the diameter of the circle.
  • the maximum diameter is the length of the diagonal of the regular polygon.
  • the distance between adjacent sub-regions in the second region is 0.1 mm to 3.0 mm.
  • the second area can be provided on the front surface or the back surface of the lens.
  • the total area of the second area accounts for 20% to 70% of the total area of the lens surface where it is located.
  • the first area has the function of focusing the image on the retina of the eye while correcting the refractive error
  • the second area has the function of limiting the image focusing.
  • the first area can be visually distinguished through the first area. While the image of the object is formed in the area, the image is limited to the front or rear of the retina through the second area, inhibiting or at least slowing down the development of myopia and hyperopia.
  • Figure 1 is a schematic side structural view of a spectacle lens provided in Embodiment 1;
  • Figure 2 is a schematic diagram of the front surface structure of the spectacle lenses described in Embodiment 1 and Embodiment 2;
  • Figure 3 is a schematic structural diagram of the second region described in Embodiment 1 and Embodiment 2;
  • Figure 4 is a beam trajectory diagram of the lens described in Embodiment 1;
  • Figure 5 is a schematic side structural view of a spectacle lens provided in Embodiment 2;
  • Figure 6 is a beam trajectory diagram of the lens described in Embodiment 2.
  • a spectacle lens is a myopia prevention and control lens, which includes a concave lens on a front surface 3 and a back surface 4.
  • the front surface 3 is provided with a first area 1 and a second area 2.
  • the first area 1 has the refractive power to correct myopia, and the refractive power is the curvature difference between the front surface 3 and the rear surface 4 of the lens.
  • the second area 2 reduces the surface finish so that the second area 2 does not focus the image on the retina of the eye. rear position, thereby slowing down the progression of myopia.
  • the second area 2 in this embodiment includes a plurality of mutually independent sub-areas 21.
  • the first area 1 is an area other than the second area 2 on the lens surface.
  • the total area of the second area 2 occupies the front surface of the lens. 30% of the total area of surface 3.
  • the second region 2 in this embodiment is an annular structure surrounding the optical center of the lens. Its inner and outer edges are both circular.
  • the sub-region 21 of the second region 2 is also circular. Round.
  • the diameter of the first region 1 surrounded by the inner edge of the second region 2 is 5.0 mm
  • the diameter of the sub-region 21 in the second region 2 is 0.1 mm
  • the distance between adjacent sub-regions is 0.1 mm.
  • the myopia prevention and control lens of this embodiment when a patient uses the myopia prevention and control lens of this embodiment to view an object, an image is formed on the retina through the first area 1. At the same time, the second area 2 is opaque and limits the imaging behind the retina. Inhibit or at least slow down the progression of myopia.
  • a spectacle lens is a hyperopia prevention lens, which includes a convex lens on a front surface 3 and a back surface 4.
  • the front surface 3 is provided with a first area 1 and a second area 2.
  • the first area 1 has the refractive power to correct hyperopia, and the refractive power is the curvature difference between the front surface 3 and the back surface 4 of the lens.
  • the second area 2 reduces the surface finish so that the second area 2 does not focus the image on the eye. The position in front of the retina, thereby slowing down the development of hyperopia;
  • the second area 2 includes a plurality of mutually independent sub-areas 21.
  • the first area 1 is an area on the lens surface other than the second area 2.
  • the total area of the second area 2 accounts for the total area of the front surface of the lens. 30%.
  • the second region 2 in this embodiment is an annular structure surrounding the optical center of the lens. Its inner and outer edges are both circular.
  • the sub-region 21 of the second region 2 is also circular. Round.
  • the diameter of the first region 1 surrounded by the inner edge of the second region 2 is 5.0 mm
  • the diameter of the sub-region 21 in the second region 2 is 0.1 mm
  • the distance between adjacent sub-regions is 0.1 mm.
  • the hyperopia prevention lens of this embodiment when a patient uses the hyperopia prevention lens of this embodiment to view an object, an image is formed on the retina through the first area 1.
  • the second area 2 is opaque and limits the imaging in front of the retina to inhibit Or at least slow the progression of farsightedness.

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  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Prostheses (AREA)
  • Eyeglasses (AREA)

Abstract

本发明公开了一种眼镜片，包括第一区域，其具有基于矫正视力屈光不正用的屈光力；第二区域，其具有不聚焦成像的功能；所述第一区域和第二区域设置于镜片表面，所述第二区域包括多个彼此独立的子区域，所述第一区域为该镜片表面上第二区域以外的区域。本发明所述眼镜片第一区域具有将像聚焦在眼睛的视网膜上同时矫正屈光不正的功能，其第二区域具有限制像聚焦功能，通过两者的结合在目视辨别通过第一区域形成物体的像的同时，通过第二区域限制在视网膜前方或后方成像，抑制或至少减缓近视与远视的发展。

Description

一种眼镜片 技术领域
本发明属于镜片领域，涉及一种眼镜片，更具体地，涉及一种具有抑制或至少减缓人眼睛屈光不正的功能的眼镜片。
背景技术
眼睛的近视的特征为眼睛将远处的物体聚焦在其视网膜前方，眼睛的远视的特征为眼睛将远处的物体聚焦在其视网膜后方。通常使用凹透镜矫正近视，并且通常使用凸透镜矫正远视。
在使用常规单光光学镜片矫正近视时，图像中心部位透射在视网膜上，但其周边部位却透射在视网膜的后方，从而诱导眼球往视网膜后方的位置生长，眼轴增长，眼睛的屈光状态向近视加深发展。
在使用常规单光光学镜片矫正远视眼时，图像中心部位透射在视网膜上，但其周边部位却透射在视网膜的前方，从而诱导眼球往视网膜前方的位置生长，眼轴变短，眼睛的屈光状态向远视加深发展。
通过专利检索发现，对于视力防控镜片，国外专利有日本特许第44891249公报中描述的镜片，为同心菲涅耳多焦点镜片。
国内的专利有CN104678572B和CN11390809A等，该类专利普遍通过第一区域矫正视力屈光不正，并通过第二区域向第一区域增加正屈光力或负的屈光力来使图像周边部位透射在视网膜的前方或后方，从而具有抑制或至少减缓近视或远视的发展的功能。
上述镜片存在加工难度大、加工成本高的问题，从而售价高昂，不利于视力防控镜片的推广和普及。
发明内容
本发明的目的是针对以上不足，提供一种眼镜片，通过第一区域矫正视力屈光不正，并通过第二区域限制图像在视网膜后或前聚焦，从而减缓近视或远视的发展。
为实现上述目的，本发明是通过以下技术方案实现的：
一种眼镜片，包括
第一区域，其具有基于矫正视力屈光不正用的屈光力；
第二区域，其具有不聚焦成像的功能；
所述第一区域和第二区域设置于镜片表面，所述第二区域包括多个彼此独立的子区域，所述第一区域为该镜片表面上第二区域以外的区域。
优选的，所述第一区域的屈光力通过调整镜片前后表面的弯度差获得，不同折射率的镜片，前后弯度差即为所需要的屈光度，可以为近视屈光或远视屈光。
优选的，所述第二区域通过降低表面光洁度以使第二区域不将像聚焦在眼睛的视网膜后或前的位置，从而减缓近视或远视的发展。降低表面光洁度可以使镜片保持亮度，但是不聚焦，不成像。
优选的，所述第二区域整体为围绕镜片的光学中心的环状结构，其内缘和外缘均为对称形状，所述内缘与外缘的形状可以相同，也可以不同。所述第二区域的子区域也为对称形状。
优选的，所述对称形状同时满足轴对称和中心对称，包括但不限于圆形、正方形或正六边形，也可以为其他满足轴对称和中心对称的正多边形。
优选的，所述第二区域内缘所包围的第一区域的最大直径为5.0mm至20mm，所述第二区域中子区域的最大直径为0.1mm～2.0mm。上述对称形状为圆形时，所述最大直径即为圆形的直径，对称形状为正多边形时，最大直径即为正多边形的对角线的长度。
优选的，所述第二区域中相邻子区域之间的距离为0.1mm至3.0mm。
优选的，所述第二区域可以设置于镜片的前表面或后表面。
优选的，所述第二区域的总面积占其所在的镜片表面总面积的20％～70％。
与现有技术相比，本发明的有益效果为：
本发明所述眼镜片，其第一区域具有将像聚焦在眼睛的视网膜上同时矫正屈光不正的功能，其第二区域具有限制像聚焦功能，通过两者的结合在目视辨别通过第一区域形成物体的像的同时，通过第二区域限制在视网膜前方或后方成像，抑制或至少减缓近视与远视的发展。
附图说明
图1为实施例1所提供的一种眼镜片的侧面结构示意图；
图2为实施例1和实施例2所述眼镜片的镜片前表面结构示意图；
图3为实施例1和实施例2所述的第二区域的结构示意图；
图4为实施例1所述镜片的光束轨迹图；
图5为实施例2所提供的一种眼镜片的侧面结构示意图；
图6为实施例2所述镜片的光束轨迹图。
图中：1-第一区域，2-第二区域，21-子区域，3-前表面，4-后表面。
具体实施方式
下面将结合附图和具体实施例更详细地描述本发明的优选实施方式。
实施例1
如图1和图2所示的一种眼镜片，为近视防控镜片，包括前表面3和后表面4的凹透镜，所述前表面3上设有第一区域1和第二区域2。所述第一区域1具有矫正近视的屈光力，屈光度为镜片前表面3和后表面4的弯度差，所述第二区域2通过降低表面光洁度以使第二区域2不将像聚焦在眼睛的视网膜后方的位置，从而减缓近视的发展。
本实施例所述第二区域2包括多个彼此独立的子区域21，所述第一区域1为该镜片表面上第二区域2以外的区域，所述第二区域2的总面积占镜片前表面3总面积的30％。
如图3所示，本实施例所述第二区域2整体为围绕镜片的光学中心的圆环结构，其内缘和外缘均为圆形，所述第二区域2的子区域21也为圆形。
本实施例所述第二区域2内缘所包围的第一区域1的直径为5.0mm，所述第二区域2中子区域21的直径为0.1mm，相邻子区域之间的距离为0.1mm。
如图4所示，当患者使用本实施例所述近视防控镜片来观看物体时，通过第一区域1在视网膜上形成像，同时第二区域2不透光，限制在视网膜后方成像，以抑制或至少减缓近视的发展。
实施例2
如图5和图2所示的一种眼镜片，为远视防控镜片，包括前表面3和后表面4的凸透镜，所述前表面3上设有第一区域1和第二区域2。所述第一区域1，具有矫正远视的屈光力，屈光度为镜片前表面3和后表面4的弯度差，所述第二区域2，通过降低表面光洁度以使第二区域2不将像聚焦在眼睛的视网膜前方的位置，从而减缓远视的发展；
所述第二区域2包括多个彼此独立的子区域21，所述第一区域1为该镜片表面上第二区域2以外的区域，所述第二区域2的总面积占镜片前表面总面积的30％。
如图3所示，本实施例所述第二区域2整体为围绕镜片的光学中心的圆环结构，其内缘和外缘均为圆形，所述第二区域2的子区域21也为圆形。
本实施例所述第二区域2内缘所包围的第一区域1的直径为5.0mm，所述第二区域2中子区域21的直径为0.1mm，相邻子区域之间的距离为0.1mm。
如图6所示，当患者使用本实施例所述远视防控镜片来观看物体时，通过第一区域1在视网膜上形成像，同时第二区域2不透光，限制在视网膜前方成像来抑制或至少减缓远视的发展。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、 “上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”等的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，除非另有说明，“多个”的含义是两个或两个以上。
以上已经描述了本发明的各实施例，上述说明是示例性的，并非穷尽性的，并且也不限于所披露的各实施例。在不偏离所说明的各实施例的范围和技术原理的情况下，对于本技术领域的普通技术人员来说许多修改和变更都是显而易见的，这些修改和变更也应视为本发明的保护范围。

Claims (11)

  1. 一种眼镜片，其特征在于，包括
    第一区域，其具有基于矫正视力屈光不正用的屈光力；
    第二区域，其具有不聚焦成像的功能；
    所述第一区域和第二区域设置于镜片表面，所述第二区域包括多个彼此独立的子区域，所述第一区域为该镜片表面上第二区域以外的区域。
  2. 根据权利要求1所述的眼镜片，其特征在于，所述第一区域的屈光力通过调整镜片前后表面的弯度差获得。
  3. 根据权利要求1所述的眼镜片，其特征在于，所述第二区域通过降低表面光洁度以使第二区域不将像聚焦在眼睛的视网膜后或前的位置。
  4. 根据权利要求3所述的眼镜片，其特征在于，所述第二区域整体为围绕镜片的光学中心的环状结构，其内缘和外缘均为对称形状。
  5. 根据权利要求4所述的眼镜片，其特征在于，所述第二区域内缘所包围的第一区域的最大直径为5.0mm至20mm。
  6. 根据权利要求1所述的眼镜片，其特征在于，所述第二区域中的子区域为对称形状。
  7. 根据权利要求4或6所述的眼镜片，其特征在于，所述对称形状同时满足轴对称和中心对称，包括但不限于圆形、正方形或正六边形。
  8. 根据权利要求1所述的眼镜片，其特征在于，所述第二区域中子区域的最大直径为0.1mm～2.0mm。
  9. 根据权利要求1所述的眼镜片，其特征在于，所述第二区域中相邻子区域之间的距离为0.1mm至3.0mm。
  10. 根据权利要求1所述的眼镜片，其特征在于，所述第二区域设置于镜片的前表面或后表面。
  11. 根据权利要求1所述的眼镜片，其特征在于，所述第二区域的总面 积占其所在的镜片表面总面积的20％～70％。
PCT/CN2022/084950 2022-03-10 2022-04-02 一种眼镜片 WO2023168773A1 (zh)

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EP4270099A4 (en) 2024-08-21

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