CN217386029U - Spectacle lens and spectacles - Google Patents
Spectacle lens and spectacles Download PDFInfo
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- CN217386029U CN217386029U CN202121634406.7U CN202121634406U CN217386029U CN 217386029 U CN217386029 U CN 217386029U CN 202121634406 U CN202121634406 U CN 202121634406U CN 217386029 U CN217386029 U CN 217386029U
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Abstract
The utility model discloses an eyeglass and glasses, the eyeglass includes the substrate, the refractive power distribution of substrate sets up to the eyeball refractive power distribution looks adaptation with the user, and for this, each region on the substrate can select the refracting power of adaptation according to user's eyeball refractive power distribution, and then, when the user worn this glasses, the bore hole reaches the distribution of ideal in addition to the comprehensive diopter distribution of lens.
Description
Technical Field
The utility model relates to a glasses technical field, concretely relates to spectacle lens and glasses.
Background
For a long time, clinical vision correction is mainly a vision correction scheme for a central macular area of an eye, and according to the structure of an eye, the positions where visual cells of a human eye are distributed include a central macula lutea and a peripheral area of a fundus oculi, so that vision exists not only in the central macula lutea of the eye but also in other fundus areas with the visual cells. Further, depending on the distribution of visual cells at different positions of the fundus, a complicated dioptric distribution is exhibited due to complicated dioptric interstitials and different forms of the fundus from person to person.
Professor Smith, faculty of optometry, houston university, usa, proposed that peripheral hyperopic defocus is a cause of myopia at the end of the last century. According to the concept of dioptric power, the focus falling in front of the peripheral retina is called peripheral myopic defocus and the focus falling behind the peripheral retina is called peripheral hyperopic defocus. The peripheral defocus theory holds that this hyperopic defocus of the peripheral retina is the primary cause that contributes to the onset of myopia and the increasing number of myopic degrees. Peripheral myopic defocusing can slow down the increase of the axis of the eye, and has the effect of inhibiting the development of myopia.
Based on this theory, peripheral myopic out-of-focus framed and out-of-focus contact lenses have appeared on the market, aiming to move the peripheral focus position towards the object by providing additional peripheral refractive power. However, since there is no way to obtain peripheral refractive information of an individual, reliable peripheral myopic defocus is not provided. For example, the dioptric value of the peripheral specific field angle direction is +4D of far-vision defocus, while the glasses only provide-3D compensation in the field direction, and +1D of far-vision defocus still remains after compensation.
In view of the above limitations, some techniques have been developed in recent years to quickly measure the peripheral defocus state, and it is desirable to provide a reliable peripheral myopic defocus solution based on the known peripheral refractive information of an individual.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main objective provides a spectacle lens and glasses, aims at the refractive power distribution condition that can the adaptation user's eyeball is different.
In order to achieve the above object, the present invention provides an eyeglass lens, comprising a substrate, wherein the refractive power distribution of the substrate is configured to be adapted to the refractive power distribution of the eyeball of the user.
Optionally, the refractive power of the substrate is in a compensating relationship with the refractive power of the user's eyeball.
Optionally, the power distribution of the substrate from the center to the periphery and the power distribution on the same periphery are irregularly arranged to adapt to the distribution law of the eyeball power of the user.
Optionally, the optical power of the substrate is arranged non-axisymmetrically, non-point-symmetrically or non-rotationally symmetrically around its optical center.
Optionally, the substrate comprises a central zone and one or more annular zones surrounding the central zone, there being at least two zones of different refractive power in any of the annular zones to adapt the distribution of the eye's refractive power of the user.
Optionally, the substrate has a refractive adjustment structure comprising a structure corresponding to the area to adjust the thickness and/or radius of curvature.
Optionally, the refraction adjusting structure comprises a surface of the substrate, wherein a protrusion or a recess is locally formed on the surface of the substrate so as to change the thickness of the area; and/or the presence of a gas in the atmosphere,
the refraction adjusting structure comprises an arc-shaped convex part or an arc-shaped concave part which is formed on the surface of the substrate locally so as to adjust the curvature radius of the substrate.
Optionally, the spectacle lens further comprises a defocus adjusting structure disposed on the substrate for adjusting defocus.
Optionally, the defocus adjustment structure comprises a plurality of bumps disposed on the substrate.
The utility model also provides a glasses, including the lens, the lens includes the substrate, the refractive power distribution of substrate sets up to the eyeball refractive power distribution looks adaptation with the user.
The utility model provides a technical scheme, lens include the substrate, the refractive power distribution of substrate sets up to the eyeball refractive power distribution looks adaptation with the user, and for this, each region on the substrate can select the refractive power of adaptation according to user's eyeball refractive power distribution, and then, when the user worn this glasses, the bore hole reaches ideal distribution in addition to the comprehensive diopter distribution of lens.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic view of an embodiment of a spectacle lens according to the present invention for compensating refraction of a human eye;
FIG. 2 is a schematic view of an emmetropic eye;
FIG. 3 is a schematic view of an ametropia eye;
FIG. 4 is a diagram illustrating the adjustment and control of refractive power after wearing the eyeglass on an emmetropic eye;
FIG. 5 is a schematic view of a compensated peripheral myopic defocus effect of another embodiment of a substrate for an ophthalmic lens provided by the present invention;
FIG. 6 is a diagram of the refractive profiles of two real human eyes;
FIG. 7 is a schematic illustration of an optical power profile of the substrate of FIG. 1;
FIG. 8 is a schematic view of an alternative power profile of the substrate of FIG. 1;
FIG. 9 is a schematic contour plot of the optical power distribution of the substrate of FIG. 1;
FIG. 10 is a schematic view of a non-convex area focus for another embodiment of an ophthalmic lens provided by the present invention;
FIG. 11 is a schematic view of a bump area focus of the substrate of FIG. 10;
FIG. 12 is a schematic view of a bump layout of the substrate of FIG. 10;
fig. 13 is a schematic view of the bump distribution on the concave side of the substrate of fig. 10.
The reference numbers indicate:
| reference numerals | Name (R) | Reference numerals | Name(s) |
| 100 | |
2/21/22 | |
| 1 | |
200 | Eyeball and method for making the same |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B", including either A or B or both A and B. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Fig. 1 shows an embodiment of the spectacle lens according to the present invention, please refer to fig. 1, the spectacle lens 100 comprises a substrate 1, the power distribution of the substrate 1 is configured to match the power distribution of the user's eyeball 200, for this purpose, each area on the substrate 1 can select the matched power according to the power distribution of the user's eyeball 200, and further, when the user wears the spectacle, the combined power distribution of the naked eye and the spectacle lens reaches the ideal distribution.
In an embodiment of the present invention, the refractive power of the substrate 1 and the refractive power of the eyeball 200 of the user are in a compensation relationship, wherein the compensation relationship includes correction, that is, in this embodiment, the refractive power distribution of the substrate 1 is set to be equal to the refractive power distribution of the eyeball 200 of the user, so that after an object at infinity wears glasses, the object is focused on the central retina and the peripheral retina without adjustment, and fig. 1 shows a typical implementation that the refractive power distribution of the substrate 1 is set to be matched with the refractive power distribution of the eyeball 200 of the user, which is obviously not limited to this design, and in other embodiments, the matching is also understood as other meanings, specifically referring to the detailed description in the subsequent sections.
Because people's eye dioptric distribution is irregular, the refractive power distribution of substrate 1 sets up needs and user's eyeball 200 refractive power distribution looks adaptation, so the refractive power of substrate 1 also presents irregular distribution, in the embodiment of the utility model discloses an embodiment, the "adaptation" relation of the refractive power of substrate 1 and user's eyeball 200 can be expressed into regular function, and the concrete form of regular function can be according to user's demand or relevant restriction condition and set up, user's demand can be central and peripheral refractive power correction, peripheral hyperopia out of focus or peripheral near-sightedness out of focus etc..
How the refractive power of the substrate 1 is adapted to the refractive power of the eyeball 200 of the user will be described in detail below with reference to specific cases:
according to the current needs of the user for prescription, or related needs related to vision correction, control and prevention. As shown in FIG. 2, emmetropic eye refers to the refractive state in which parallel rays from distant objects are focused on the macula of the retina of an unadjusted eye. As shown in FIG. 3, non-emmetropic eye refers to a refractive condition in which parallel rays from distant objects fail to focus on the macula of an unadjusted eye. The degree of refraction of the incident light ray without the accommodative eye is recorded as D 1 . In FIG. 3, the refractive power required to focus parallel light onto the macula of the retina is D 0 Then the power deviation value DeltaD 1 ＝D 0 –D 1 Defined as the initial eye refraction. The initial ocular refractive concept may extend from the macular power deviation value to the entire ocular retinal area with visual cells. The initial refractive power of the eye at the plurality of different locations of the retina can constitute an initial refractive eye profile.
The initial refractive eye distribution of the eye may be measured directly by a refractive topography device or may be calculated indirectly by a measurement device such as an optometry instrument, aberrometer, or the like.
The initial refractive profile of the eye comprises a plurality of numerical elements, one by oneObtaining each numerical element, namely the initial eye refraction distribution numerical value, further calculating the substrate 1 refractive power numerical value of the same coordinate position point according to a rule function, and forming the substrate 1 refractive power distribution by the substrate 1 refractive power numerical value of each position point according to the coordinate position relation. The detailed understanding concept can be seen from fig. 4, in which fig. 4 is a schematic diagram of adjusting and controlling the retroflexion power of the non-emmetropic spectacle lens 100', and the wearing refractive power is D 2 The total refractive power of the initial ocular refractive power and the refractive power of the base plate 1 after the base plate 1 is subjected to refractive power control is D 1 +D 2 Here refractive power D of substrate 1 2 For initial eye refractive power D 1 Constitutes a refractive compensation, the deviation value DeltaD of the actual total power after being modulated by the lens and the total power required for focusing parallel light on the retina 2 ＝D 0 –(D 1 +D 2 ) Defined as regulating post-refraction. And the refractive power D of the substrate 1 for regulating the initial refraction of the eye 2 Defined as the optical power of the substrate 1. D in the present application 2 There may be differential values at different positions of the lens.
And introducing a position coordinate system by taking the initial eye refraction profile as an example, and defining the initial eye refraction profile as a polar coordinate expression E (r, theta), wherein the polar diameter r is 0 and represents a connecting line of the central macula lutea and the pupil center, namely the visual axis direction, and when the polar diameter r is not equal to 0, the polar diameter r represents an included angle between the connecting line of the fundus position point and the pupil center and the visual axis direction. Thus, r is the expressed single-sided angle of view, which is twice the single-sided angle of view as described herein. The polar angle θ of the polar coordinate represents the axial direction, and is the same axial concept as that associated with normal astigmatism.
The power value of the substrate 1 calculated based on the initial refractive distribution value of the eye is defined as G (r, θ). Further, in calculating the refractive power value of the substrate 1 based on the initial refractive power distribution value, it is necessary to perform calculation in consideration of the wearing effect desired by the user, the processing capability of the lens processing apparatus, and the like.
For example, if the substrate 1 is used to focus all objects at infinity within a certain field angle on the retina, the power distribution of the substrate 1 can be defined by using the rule of the rule function G (r, θ) or E (r, θ). The compensated focusing effect is shown in fig. 1.
For another example, if it is desired to realize gradual myopic defocus in the peripheral field by the substrate 1, the power distribution of the substrate 1 may be defined by a regular function such as the rule of G (r, θ) ═ E (r, θ) + β × r, and peripheral myopic defocus in which the degree of myopia gradually increases by a factor β with an increase in the field angle may be realized. The compensated focusing effect is shown in fig. 5.
As another example, where it is desired to achieve a constant add power across the field of view through the substrate 1, the power profile of the substrate 1 may be defined using a regular function, such as the rule of G (r, θ) ═ E (r, θ) + α.
As another example, to account for small rotations of the eye 200 or positional disturbances when wearing the lens, conventional macular vision correction may be applied to leave a zone in the center of the lens, compensation for focusing on the retina may be applied to the periphery, and a regular function such as
Namely, it is
Inside the circle of radius r0, refractive correction of the macula is used, in addition to the need to focus the peripheral infinitely distant objects on the retina under non-accommodative eye conditions.
As shown in fig. 6, two examples of the refractive power distribution of the real human eye are shown, because of the multi-layer structure of the retina of the human eye, the traction of the eye muscles and the complexity of the refractive interstice, so that the initial refractive power distribution E (r, θ) of the human eye exhibits irregularity, non-axisymmetric, non-point-symmetric, and accordingly, the refractive power of the substrate 1 is arranged around the optical center thereof in a non-axisymmetric, non-point-symmetric or non-rotational symmetric manner.
Since the power of the eyeball 200 of the user is irregularly arranged and the power distribution of the base plate 1 is arranged to match the power distribution of the eyeball 200 of the user, in the above embodiment, the power distribution of the base plate 1 is embodied such that the power distribution of the base plate 1 from the center to the periphery and the power distribution on the same circumference are irregularly arranged to match the power distribution rule of the eyeball 200 of the user as shown in fig. 7 and 8.
The power profile of the substrate 1, customized on the basis of the initial ocular refractive profile, inherits the irregular characteristics of the initial ocular refractive profile. The contours of the power distribution of the substrate 1 as illustrated in figure 9 exhibit an irregular course.
In an embodiment of the present invention, the substrate 1 includes a central region and one or more annular regions surrounding the central region, specifically, in this embodiment, the annular regions are provided in plurality, and on any one of the annular regions, there are at least two regions with different refractive powers to adapt to the distribution of the eyeball 200 refractive power of the user.
The refractive power of each region of the substrate 1 is adjusted accordingly according to the power distribution of the eyeball 200 of the user, and for this reason, in the present invention, the substrate 1 has a refraction adjusting structure for adjusting the refractive power, and for this reason, the refractive power of each region can be changed by setting the refraction adjusting structure,
as can be seen from the foregoing, the refractive power depends on the medium refractive index, the medium thickness and the interface curvature radius, and in the embodiment of the present invention, the refraction adjusting structure includes a structure corresponding to the area for adjusting the thickness and/or the curvature radius, wherein, for the thickness adjusting manner of the substrate 1, the refraction adjusting structure includes that the surface of the substrate 1 partially forms a protrusion or a recess to change the thickness of the area, and for the curvature radius adjusting of the local area of the substrate 1, the refraction adjusting structure includes that the surface of the substrate 1 partially forms an arc-shaped protrusion or an arc-shaped recess to adjust the curvature radius.
In the specific processing of the substrate 1, materials with the same refractive index can be adopted, wherein one surface is processed or injection-molded into a spherical or aspheric structure, and the other surface is processed into a free-form surface adapted to the refractive power distribution of the eyeball 200 of the user according to customized parameters. The refractive power distribution is ultimately determined by the surface type of the two surfaces of the substrate 1 and the refractive index of the material. The variation of the optical power can also be achieved using a graded index scheme.
In the embodiment of the present invention, please refer to fig. 10 to 13, the spectacle lens 100 further comprises an out-of-focus adjusting structure, the out-of-focus adjusting structure is disposed on the substrate 1 and used for adjusting out-of-focus amount, specifically, the out-of-focus adjusting structure comprises a plurality of bumps 2 disposed on the substrate 1, so as to form an additional focus different from the focus of the substrate 1 through the plurality of bumps 2, thereby enhancing the stimulation of the myopic out-of-focus signal.
As shown in fig. 10, the lens includes a substrate 1 and a plurality of bumps 2 (bumps 21, 22) made based on a regular function G (r, θ) ═ E (r, θ), and an object AB at infinity, and parallel light rays reaching the substrate 1 pass through the substrate 1 except the bumps 2 and are focused on the retina to form a clear image a 'B'. Fig. 11 depicts the same lens of fig. 10, with an object AB at infinity, parallel light rays reaching substrate 1, passing through the protrusions 2 and substrate 1, focused in front of the retina to form a sharp image A1B1 corresponding to the protrusions 21 and a sharp image A2B2 corresponding to the protrusions 22. As can be seen from fig. 10 and 11, the bumps 21 and 22 can form two additional clear images which are more forward than the image of the substrate 1 based on the existing refraction compensation of the substrate 1, so as to realize an additional refraction adjustment function, and the curvature of the bumps 2 can be set in a larger range, so that the limit of the processing capability of the free-form surface of the substrate 1 can be broken through, and the additional defocus stimulus can be more flexibly introduced.
The arrangement of the plurality of bumps 2 may be regular or irregular. As shown in fig. 12, the front surface of the substrate 1 is schematically illustrated, and the embodiment of the present invention employs a regular arrangement around the circumference. The center of the front surface (convex surface) of the substrate 1 is taken as the center of a circle, 7 concentric circles are distributed, the radius of each concentric circle is 5mm at the minimum and 17mm at the maximum, and the radius interval between every two adjacent concentric circles is 2 mm. The rotation is started by a horizontal line passing through the center of the substrate 1, so that 15 warps are obtained, and the included angle between two adjacent warps is 12 degrees. The longitude lines are intersected with the concentric circles to obtain 210 intersection points, 210 salient points 2 are generated by taking each focus as a circle center, and the diameter of each salient point 2 is 1 mm. The refractive power of all the salient points 2 is between 1D and 5D.
A plurality of bumps 2 may be distributed on the front surface of the substrate 1 as shown in fig. 10 to 12, and of course, a plurality of bumps 2 may also be distributed on the back surface of the substrate 1 as shown in fig. 13, depending on the actual requirement.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses an application scope, all be in the utility model discloses a conceive, utilize the equivalent structure transform that the content of the description and the attached drawing was done, or direct/indirect application all is included in other relevant technical field the utility model discloses an apply for the protection within range.
Claims (8)
1. An ophthalmic lens comprising a substrate, wherein the power profile of the substrate is arranged to match the power profile of a user's eyeball;
the substrate having a refractive adjustment structure comprising a corresponding area for adjusting the thickness and/or radius of curvature;
the refraction adjusting structure comprises a substrate, wherein the surface of the substrate is locally provided with bulges or recesses so as to change the thickness of the area; and/or, the refraction adjusting structure comprises an arc-shaped convex part or an arc-shaped concave part which is formed on the surface of the substrate locally so as to adjust the curvature radius of the substrate.
2. The ophthalmic lens of claim 1, wherein the optical power of the substrate is in a compensating relationship with the optical power of the eye of the user.
3. The spectacle lens of claim 2 wherein the power distribution of the substrate from the center to the periphery thereof and the power distribution on the same circumference are irregularly arranged to match the power distribution of the user's eyeball.
4. The ophthalmic lens of claim 3, wherein the optical power of the substrate is disposed non-axisymmetrically, non-point-symmetrically, or non-rotationally symmetrically about its optical center.
5. The ophthalmic lens of claim 3, wherein the substrate comprises a central zone and one or more annular zones disposed around the periphery of the central zone, there being at least two zones of different refractive power in any one of the annular zones to adapt to the distribution of the eye's refractive power of the user.
6. The spectacle lens as claimed in any one of claims 1 to 5, further comprising a defocus adjustment structure provided on the substrate and for adjusting a defocus amount.
7. The ophthalmic lens of claim 6, wherein said defocus adjustment structure comprises a plurality of bumps provided on said substrate.
8. Spectacles, characterized in that they comprise an ophthalmic lens as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121634406.7U CN217386029U (en) | 2021-07-16 | 2021-07-16 | Spectacle lens and spectacles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121634406.7U CN217386029U (en) | 2021-07-16 | 2021-07-16 | Spectacle lens and spectacles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217386029U true CN217386029U (en) | 2022-09-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121634406.7U Active CN217386029U (en) | 2021-07-16 | 2021-07-16 | Spectacle lens and spectacles |
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|---|---|
| CN (1) | CN217386029U (en) |
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- 2021-07-16 CN CN202121634406.7U patent/CN217386029U/en active Active
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