CN113376866B - Adult progressive spectacle lens with microstructure - Google Patents
Adult progressive spectacle lens with microstructure Download PDFInfo
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- CN113376866B CN113376866B CN202110615710.5A CN202110615710A CN113376866B CN 113376866 B CN113376866 B CN 113376866B CN 202110615710 A CN202110615710 A CN 202110615710A CN 113376866 B CN113376866 B CN 113376866B
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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
- G02C7/061—Spectacle lenses with progressively varying focal power
Abstract
The invention discloses a micro-structured adult progressive spectacle lens, wherein one of two surfaces is a progressive surface, the other surface is a non-progressive surface, the non-progressive surface comprises a first refraction area and has a first refractive power based on ametropia of a corrected eye; and a second dioptric area having a refractive power different from the first refractive power and having a function of focusing an image on a position other than a retina of the eye to suppress development of ametropia of the eye, characterized in that: the second dioptric zone is composed of a plurality of circular sub-zones distributed on a non-progressive surface, the sub-zones are not distributed in a photopic zone, and the photopic zone is composed of a first photopic zone taking a distance zone center as a center, a second photopic zone taking a near zone center as a center and a transitional photopic zone connecting the first photopic zone and the second photopic zone. The invention applies the function of inhibiting the development of myopia to the progressive ophthalmic lens and ensures the comfort of the wearer.
Description
Technical Field
The present invention relates to an ophthalmic lens, in particular a progressive ophthalmic lens, in particular suitable for use by adults, provided with a microstructure.
Background
Human eyes are crucial for human information acquisition, and statistically more than 80% of human information acquisition originates from the eyes. At present, the social life is flooded with various electronic screens which emit light of different intensities, and the human eyes are used for a longer and longer time every day, so that the human eyes continuously generate ametropia, and the ametropia is increasing. According to incomplete statistics, over 80% of college students have refractive errors above 200 degrees.
On the basis of the refractive correction, functional spectacle lenses have emerged which have the function of inhibiting the ametropia of the human eye. For example, a lens having a concentric fresnel multifocal shape is provided, and a plurality of dioptric regions are concentrically arranged in the lens, and this lens has a function of focusing an image on the retina of the spectacles, and if a patient views an object using the lens for inhibiting myopia, the image of the object is formed on the retina, and an image is formed at a point in front of the retina, so that an effect of inhibiting the progression of myopia can be obtained by two images during visual observation.
Chinese patent CN 104678572B discloses an eyeglass lens, in which a plurality of small area lenses with a circular shape and a diameter of about 0.8 mm-2 mm are arranged in different areas to form a second dioptric area. The progression of myopia is suppressed by an image obtained in front of the retina by the second dioptric region while visually distinguishing an image of the object formed by the first refractive power. Meanwhile, the second dioptric region is not formed in a circular region having a radius of 2.5mm to 10.0mm with the optical center of the spectacle lens as the center, in order to maintain sufficient visibility and obtain a good wearing feeling. In the above-described aspect, as seen from the embodiment, the small area mirror of a circular shape for forming the second dioptric area is arranged on the object-side surface of the eyeglass lens.
However, the above structure, when applied to a progressive lens, causes extreme discomfort to the wearer.
Disclosure of Invention
The invention aims to provide a micro-structured adult progressive spectacle lens which can inhibit the continuous increase of ametropia of eyes and ensure sufficient visibility and good wearing feeling.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: a microstructured adult progressive ophthalmic lens, one of the two surfaces being a progressive surface and the other being a non-progressive surface; the non-progressive surface includes a first dioptric region having a first refractive power for correcting ametropia of the eye, and a second dioptric region having a refractive power different from the first refractive power and having a function of focusing an object on a position other than a retina of the eye to suppress development of ametropia of the eye, the second dioptric region being composed of a plurality of circular sub-regions distributed on the non-progressive surface, the sub-regions not being distributed in a photopic region, the photopic region being composed of a first photopic region centered on a center of a distance zone, a second photopic region centered on a center of a near zone, and a transitional photopic region connecting the first and second photopic regions.
In the technical scheme, in the distribution range of the secondary regions, the first refraction region and the second refraction region form a mixed region, a filling factor e is set, and the ratio of the area of the second refraction region formed by the secondary regions to the total area of the mixed region is equal to the filling factor.
In the preferred technical scheme, the filling factor e is 0.3-0.4.
In a preferred technical scheme, the distribution mode of the secondary regions in the mixed region is that the mixed region is seamlessly tiled by regular hexagons, one secondary region is arranged at the center of each regular hexagon, and the side length d of each regular hexagon is consistent with the radius r of each secondary region:
。
in a preferred technical scheme, the radius r of the secondary area is 0.25-0.6 mm. The secondary regions are protrusions or depressions provided in the non-progressive surface.
The structure of the sub-regions may be, for example, a micro-lens structure or a fresnel ring groove structure to provide imaging of the object on an image plane outside the retina.
In the technical scheme, the first bright visual area is a circle with the diameter of 8-12 mm, the second bright visual area is a circle with the diameter of 6-8 mm, and the transition bright visual area is a long strip with the width of 4-6 mm.
The outer contour of the second dioptric area is located at 65-70% of the aperture of the lens.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
1. the secondary region for forming the second refraction region is arranged on the non-progressive surface, so that the design and processing are convenient to realize, the shape design of the progressive surface is not influenced while the myopia development can be inhibited, and the mass production is easy to form;
2. the vision observation device adapts to the vision observation requirement of the progressive spectacle lens by arranging the photopic vision area, can improve the use comfort of a wearer, and is more suitable for adults to use by limiting the shape and the size of the photopic vision area;
3. according to the invention, the specific distribution form of the secondary region is set, so that the energy collected by the microstructures is ensured to be consistent, and additional wearing discomfort is avoided.
Drawings
FIG. 1 is a schematic view of the lens area distribution of an embodiment;
FIG. 2 is a partially enlarged schematic view of a sub-region distribution;
fig. 3 is a schematic view of the left and right eye lenses.
Wherein: 1. a first bright zone; 2. a second bright field; 3. a transitional bright field; 4. a secondary region; 5. an outer contour.
Detailed Description
The invention is further described with reference to the following figures and examples:
the first embodiment is as follows: a microstructured adult progressive ophthalmic lens, one of the two surfaces being a progressive surface and the other being a non-progressive surface, a first dioptric zone being formed between the two surfaces for correcting ametropia of the eye, a plurality of circular sub-zones 4 being provided on the non-progressive surface, constituting a second dioptric zone, the sub-zones providing different powers and having the function of focusing an image on a location other than the retina of the eye in order to inhibit the development of ametropia of the eye.
Referring to the attached figure 1, a first circular bright visual area 1 with the diameter of 8-12 mm is arranged by taking the center of a far zone as the center, a second circular bright visual area 2 with the diameter of 6-8 mm is arranged by taking the center of a near zone as the center, a strip-shaped transition bright visual area 3 is arranged by connecting the first bright visual area and the second bright visual area, and the width of the transition bright visual area 3 is 4-6 mm. No secondary zone 4 is provided in the first, second and transition clear zones 1, 2, 3, while the outer contour 5 of the second refractive zone is located between 65 and 70% of the lens' caliber.
Referring to fig. 2, a partial enlarged illustration of the sub-area distribution is shown. For the mixed area distributed with the secondary areas, the regular hexagons are used for seamless tiling, and one secondary area is arranged at the central position of each regular hexagonAnd the side length d of the regular hexagon and the radius r of the sub-region are in accordance with:
。
for example, when the radius r of the sub-region is 0.5mm and the fill factor e is 0.3, the side length d of the regular hexagon is 1mm.
In this embodiment, the sub-region may adopt a microlens structure, or may be an equivalent microlens formed by a ring groove structure conforming to a fresnel zone. Thereby forming a secondary focal plane different from the primary focal plane of the lens, and obtaining the function of inhibiting the progression of ametropia through the two image zones.
The photopic vision area has corridor corners. Fig. 3 shows a schematic view of the left and right ophthalmic lenses, with the corridor angles of the two lenses arranged opposite.
Claims (6)
1. A microstructured adult progressive ophthalmic lens, one of the two surfaces being a progressive surface and the other being a non-progressive surface; the non-progressive surface includes a first dioptric region having a first refractive power for correcting ametropia of the eye based thereon, and a second dioptric region having a refractive power different from the first refractive power, and having a function of focusing an object on a position other than a retina of the eye to suppress development of ametropia of the eye, characterized in that: the second dioptric zone is composed of a plurality of circular sub-zones distributed on a non-progressive surface, the sub-zones are not distributed in a photopic zone, and the photopic zone is composed of a first photopic zone taking a distance zone center as a center, a second photopic zone taking a near zone center as a center and a transitional photopic zone connecting the first photopic zone and the second photopic zone;
within the range of the distribution of the secondary regions, the first refraction region and the second refraction region form a mixed region, a filling factor e is set, and the ratio of the area of the second refraction region formed by the secondary regions to the total area of the mixed region is equal to the filling factor e;
the filling factor e takes a value of 0.3 to 0.4.
2. According to the rightThe microstructured adult progressive ophthalmic lens of claim 1, wherein: the distribution mode of the sub-regions in the mixed region is that the mixed region is seamlessly tiled by regular hexagons, one sub-region is arranged at the center of each regular hexagon, and the side length d of each regular hexagon is consistent with the radius r of the sub-region:
。
3. the microstructured adult progressive ophthalmic lens of claim 2, wherein: the radius r of the secondary area is 0.25-0.6 mm.
4. The microstructured adult progressive ophthalmic lens of claim 3, wherein: the secondary regions are protrusions or depressions provided in the non-progressive surface.
5. The microstructured adult progressive ophthalmic lens of claim 1, wherein: the first bright visual area is a circle with the diameter of 8-12 mm, the second bright visual area is a circle with the diameter of 6-8 mm, and the transition bright visual area is a long strip with the width of 4-6 mm.
6. The microstructured adult progressive ophthalmic lens of claim 1, wherein: the outer contour of the second dioptric area is located at 65-70% of the aperture of the lens.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110615710.5A CN113376866B (en) | 2021-06-02 | 2021-06-02 | Adult progressive spectacle lens with microstructure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110615710.5A CN113376866B (en) | 2021-06-02 | 2021-06-02 | Adult progressive spectacle lens with microstructure |
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| CN113376866A CN113376866A (en) | 2021-09-10 |
| CN113376866B true CN113376866B (en) | 2022-11-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115032815B (en) * | 2021-10-22 | 2022-12-13 | 温州医科大学 | Spectacle lens and frame glasses |
| CN114815308A (en) * | 2022-05-24 | 2022-07-29 | 江苏全真光学科技股份有限公司 | Progressive-refractive-power resin lens |
| CN115407525B (en) * | 2022-08-30 | 2023-10-17 | 北京天明眼科新技术开发公司 | Defocusing lens and defocusing glasses |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101595420B (en) * | 2006-09-15 | 2011-10-19 | 卡尔蔡司视觉澳大利亚控股有限公司 | Ophthalmic lens element |
| CN104678572B (en) * | 2013-11-29 | 2018-04-27 | 豪雅镜片泰国有限公司 | Ophthalmic len |
| CN109031696B (en) * | 2018-08-20 | 2020-06-05 | 赵佩韬 | Peripheral micro-lens based vision control lens and glasses |
| CN109633925A (en) * | 2019-01-14 | 2019-04-16 | 温州医科大学 | A kind of dioptric film patch flexible with micro-structure |
| CN212460228U (en) * | 2020-07-15 | 2021-02-02 | 明月镜片股份有限公司 | Lens for slowing down myopia progression |
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