CN111552096A - Multi-concentric ring progressive spectacle lens capable of partially recovering vision for children - Google Patents
Multi-concentric ring progressive spectacle lens capable of partially recovering vision for children Download PDFInfo
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- 230000004438 eyesight Effects 0.000 title claims abstract description 17
- 230000000750 progressive effect Effects 0.000 title description 3
- 238000001514 detection method Methods 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 210000001508 eye Anatomy 0.000 abstract description 21
- 208000001491 myopia Diseases 0.000 abstract description 10
- 230000004379 myopia Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 2
- 210000005252 bulbus oculi Anatomy 0.000 description 8
- 239000011521 glass Substances 0.000 description 6
- 230000002265 prevention Effects 0.000 description 4
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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
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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
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Abstract
The invention discloses a spectacle lens with multiple concentric rings for children to partially recover vision, belonging to a stepped concentric ring asymptotic spectacle lens, wherein the spectacle lens has multiple power areas and can clearly see objects at multiple distance positions from far to near. The spectacle lens is at least divided into three concentric circle areas, the three areas are a height number area, a ladder-type multi-concentric-ring gradient annular area and a low-number annular area, the center of the height number annular area is positioned, the outer ring of the height number annular area is the ladder-type multi-concentric-ring gradient annular area, the outer ring of the ladder-type multi-concentric-ring gradient annular area is the low-number annular area, and the lens degree function general formula of each annular ring of the ladder-type multi-concentric-ring gradient annular area is Y-2.27X + A. The myopia degree can be recovered by 20-30% in three years, so that the spectacle lens is not easy to generate fatigue when people wear the spectacle lens to see various distances from far to near, and has good protection and rehabilitation effects on the vision of eyes.
Description
Technical Field
The invention belongs to the technical field of spectacle lenses, and particularly relates to a stepped concentric ring asymptotic spectacle lens which has a plurality of power areas and can clearly see objects at various distance positions from far to near.
Background
In order to adapt to the condition that objects with different distances can be seen clearly by only one pair of glasses, bifocal lenses are available. Bifocal lenses as shown in figure 1, bifocal lenses are lenses having two zones of different power, typically a small near zone and a large far zone, on one lens, with the near zone being below the far zone. The disadvantage of this lens is that only the near and far zones are present, which makes it difficult to satisfy the need for objects that are not visible within these two distances.
Chinese patent 2011200063799 "myopia prevention and treatment lenses and glasses" provides a myopia prevention and treatment lenses and glasses, the lenses include: a proximal lens located at a lower portion of said lens; the far lens is positioned at the upper part of the lens, a notch structure corresponding to the shape of the near lens is arranged below the optical central point of the far lens, and the near lens is placed in the notch structure; the invention also provides a pair of myopia prevention and treatment glasses, which comprises a glasses frame and the myopia prevention and treatment lenses. The invention has simple structure and convenient use, adopts the structure of the double-polished-film, is convenient to disassemble, can adjust the reaction, the eye position of far and near vision, the interpupillary distance of two eyes and the like according to the positive and negative relative adjustment of each person, and fundamentally solves the eye fatigue caused by over-sight.
Disclosure of Invention
The invention aims to provide a stepped concentric ring asymptotic spectacle lens which is provided with a plurality of power areas, can clearly see objects at a plurality of distance positions from far to near, enables eyes to be difficult to fatigue when seeing a plurality of distances from far to near, has the function of partially recovering the myopia vision when being used by children, and can protect the eyes better than the prior spectacles.
The structure of the invention is as follows:
the multi-concentric ring asymptotic spectacle lens capable of partially recovering vision for children comprises a spectacle lens 1 and is characterized in that: the spectacle lens 1 is at least divided into three concentric circle areas, the three areas are a height number area 2, a ladder-type multi-concentric ring gradient annular area 3 and a low-degree annular area 4, the center of the height number area 2 is provided with the ladder-type multi-concentric ring gradient annular area 3 at the outer ring of the height number area 2, the low-degree annular area 4 at the outer ring of the ladder-type multi-concentric ring gradient annular area 3,
the degree of the high-degree circular area 2 is the degree of a spectacle lens which needs to be worn by a human eye and is detected by an instrument;
the annular district 3 of concentric ring gradual change of ladder type has a plurality of annular rings 5 that follow each other closely, and every annular ring 5's lens number of degrees is the same, from the inner circle to the outer lane, and the degree of lens reduces gradually, and it is the 1 st circle to establish the minimum innermost round of diameter, and the biggest outermost round of diameter is the nth circle, and the function of the annular lens number of degrees of a certain circle of 1 st circle to nth circle is:
a first formula, Y ═ 2.27X-52.27;
the variable Y is the degree of a certain circle in the ladder-type multi-concentric ring gradient annular area 3, and when X is equal to 1, Y is-50;
the variable X is a natural number in the range of 2 to n +1 at a certain circle position of the ladder-type multi-concentric-ring gradient annular area 3;
x of the 1 st turn is 2, and X of the nth turn is n + 1;
a second formula, Y ═ 2.27X-102.27;
the variable Y is the degree of a certain circle in the ladder-type multi-concentric ring gradient annular area 3, and when X is equal to 1, Y is-100;
the variable X is a natural number in the range of 2 to n +1 at a certain circle position of the ladder-type multi-concentric-ring gradient annular area 3;
x of the 1 st turn is 2, and X of the nth turn is n + 1;
a third formula, wherein Y ═ 2.27X-302.27;
the variable Y is the degree of a certain circle in the ladder-type multi-concentric ring gradient annular area 3, and when X is equal to 1, Y is-300;
the variable X is a natural number in the range of 2 to n +1 at a certain circle position of the ladder-type multi-concentric-ring gradient annular area 3;
x of the 1 st turn is 2, and X of the nth turn is n + 1;
a fourth formula, wherein Y is 2.27X-402.27;
the variable Y is the degree of a certain circle in the ladder-type multi-concentric ring gradient annular area 3, and when X is equal to 1, Y is-400;
the variable X is a natural number in the range of 2 to n +1 at a certain circle position of the ladder-type multi-concentric-ring gradient annular area 3;
x of the 1 st turn is 2, and X of the nth turn is n + 1;
a fifth formula, wherein Y is 2.27X-602.27;
the variable Y is the degree of a certain circle in the ladder-type multi-concentric ring gradient annular area 3, and when X is equal to 1, Y is-600;
the variable X is a natural number in the range of 2 to n +1 at a certain circle position of the ladder-type multi-concentric-ring gradient annular area 3;
x of the 1 st turn is 2, and X of the nth turn is n + 1;
a sixth formula, wherein Y is 2.27X-902.27;
the variable Y is the degree of a certain circle in the ladder-type multi-concentric ring gradient annular area 3, and when X is equal to 1, Y is-900;
the variable X is a natural number in the range of 2 to n +1 at a certain circle position of the ladder-type multi-concentric-ring gradient annular area 3;
x of the 1 st turn is 2, and X of the nth turn is n + 1;
it can be seen that the general formula of the lens power of each ring is Y ═ 2.27X + a
The constant A is the degree B plus-2.27 of the height number circle 2, i.e. A ═ B-2.27
The variable Y is the degree of a certain circle in the ladder-type multi-concentric-ring gradual change annular area 3;
the variable X is a natural number in the range of 2 to n +1 at a certain circle position of the ladder-type multi-concentric-ring gradient annular area 3;
x of the 1 st turn is 2, and X of the nth turn is n + 1;
the degree of the low-degree annular area 4 is the maximum annular degree value of the ladder-type multi-concentric-ring gradual change annular area 3, and the degree of the low-degree annular area 4 is one degree.
The numerical function of the diameter of each ring outer edge line of the 1 st circle to the n +1 st circle of the ladder type multi-concentric ring gradient ring area 3 is as follows:
y＝1.0x+a；
the constant a is the outer ring diameter b of the height number circular area 2 minus 1.0, namely a is b-1.0;
the variable y is the diameter of the outer edge line of a circle in the gradient multi-concentric-ring gradient annular area 3, and the unit of y is millimeter; y ranges from 5 mm to 15 mm;
the variable x is a natural number in the range of 2 to n +1 at a certain circle position of the ladder-type multi-concentric-ring gradient annular area 3;
x of the 1 st turn is 2, and X of the n-th turn is n + 1.
The spectacle lens 1 is at least divided into three concentric circle areas, namely a height number area 2, a ladder-type multi-concentric ring gradient annular area 3 and a low-power annular area 4;
the degree of the height number zone 2 is the same degree within the diameter of 5 mm to 15 mm, and the degree of the height number zone 2 is the degree of glasses which are matched with human eyes and are detected by the instrument.
The ladder type multi-concentric ring gradual change annular region 3 is wrapped outside the height number region 2, the innermost ring of the ladder type multi-concentric ring gradual change annular region 3 is connected with the height number region 2, the diameter of the outermost ring of the ladder type multi-concentric ring gradual change annular region 3 of the spectacle lens for children is generally 24-35 mm, preferably 26 mm, when the difference between the lens power of the innermost ring and the lens power of the outermost ring of the ladder type multi-concentric ring gradual change annular region 3 is 20-30 degrees, the difference between the lens power of the innermost ring and the lens power of the outermost ring is generally preferred to be 25 degrees, namely when the lens power of the innermost ring of the height number region 2 is-100 degrees, the lens power of the outermost ring of the ladder type multi-concentric ring gradual change annular region 3 is; dividing the preferred difference of 25 degrees by 2.27 degrees equals the circle of lenses to which 11 different lens powers are to be set, and if the preferred difference of 70 degrees by 2.27 degrees equals the circle of lenses to which 30 different lens powers are to be set; preferably, the difference between the height and the height is 25 degrees, the diameter of each circle of annular outer edge line of the ladder type multi-concentric ring gradient annular area 3 can be calculated by using the diameter value function Y of each circle of annular outer edge line as 1.0X + a, and the diameter of the area in the height number area 2 as 5 mm to 15 mm, and after selecting a value b, the diameter of each circle of annular outer edge line of the ladder type multi-concentric ring gradient annular area 3 can be calculated, and the lens power value of each circle of annular gradient annular area 3 can be determined by using the function formula Y of each circle of lens power as 2.27X + A, so that the size and the power of each circle of the ladder type multi-concentric ring gradient annular area 3 can be.
Because the habitual rotation angle of the eyeball of the child is smaller than that of an adult, if the child is an adult, the related technology and parameters of the patent are preferably not used, the diameter of the outermost circle of the ladder-type multi-concentric ring gradual change annular region 3 of the adult is 40 mm-50 mm, and the lens power of the innermost circle and the lens power of the outermost circle of the ladder-type multi-concentric ring gradual change annular region 3 of the adult are 70-100 degrees different.
The degree of the low-degree annular area 4 is the maximum annular degree value of the gradient multi-concentric-ring gradual change annular area 3, the degree of the low-degree annular area 4 is one degree, namely, after the degree of the high-degree annular area 2 is-50 degrees to-900 degrees, the degree of the low-degree annular area 4 is preferably 25 degrees lower than the degree of the high-degree annular area 2, the degree of the high-degree annular area 2 is-100 degrees, the degree of the low-degree annular area 4 is-75 degrees, and the degree of the high-degree annular area 2 is-400 degrees, the degree of the low-degree annular area 4 is-375 degrees; the degree of the low degree annular region 4 is best suited for these high degree annular regions 2 to view very close objects and text in the degree of the low degree annular region 4.
After the eyes of the children are short-sighted, if the eyeballs can be exercised at any time, the eyeballs can be retracted and extended when the children see far objects and near objects frequently, and the eyes can be promoted to recover partial vision, the difference between the power of the innermost circle and the power of the outermost circle of the ladder type multi-concentric ring gradual change annular area 3 is 20-30 degrees, which is far less than the difference between the power of 70-100 degrees of adults, namely, the eyeballs need to have proper retraction and extension movement when the children see far objects and near objects. If the degrees do not differ, the distance object and the near object can be seen clearly, and the eyeball muscle is damaged due to too large retraction and release movement amount of the eyeball; if the degrees of adults are different from 70-100 degrees, distant objects and near objects can be seen clearly, the eye ball needs too small retraction and extension movement, so that the muscle of the eye ball cannot be exercised, and the aim of promoting the eye to recover partial vision can not be achieved.
The invention has the advantages that: the spectacle lens has various step gradients between the highest power and the lowest power, can clearly see a far object, a near object and dozens of objects with gradient distances between the far object and the near object, solves the problem that the prior spectacle lens is easy to hurt eyes because no proper lens is available when the lens looks at various gradient distances between the far object and the near object, namely solves the problem that the prior spectacle lens is easy to hurt the eyes and quickens the eyes to be more myopic, and can promote the eyes to be placed and exercised in a proper range; the myopia degree of the common myopia children wearing the spectacle lens can recover 20-30% within three years, and the spectacle lens is not easy to generate fatigue when being worn at various distances from far to near, and has good protection and rehabilitation effects on the vision of the eyes.
Drawings
FIG. 1 is a schematic diagram of a prior art bifocal lens configuration;
FIG. 2 is a schematic structural view of the present invention;
in the figure 1 is the ophthalmic lens, 2 is the high number zone, 3 is the ladder type multi concentric ring progressive annular zone, 4 is the low number annular zone, 5 is the annular ring.
Detailed Description
Example 1 ophthalmic lens having a-50 zone of high power for children with multiple concentric rings of asymptotic lenses partially restoring vision
As shown in fig. 2, the distribution rule of the various power regions of the spectacle lens is as follows: the spectacle lens for partial recovery of vision by the gradual approach of the multiple concentric rings of the children comprises an spectacle lens 1, wherein the spectacle lens 1 is at least divided into three concentric ring areas, the three areas are a height number area 2, a ladder type multiple concentric ring gradual change annular area 3 and a low-power annular area 4, the center of the height number circular area 2 is provided with the ladder type multiple concentric ring gradual change annular area 3 at the outer ring of the height number circular area 2, the low-power annular area 4 at the outer ring of the ladder type multiple concentric ring gradual change annular area 3,
the specific lens powers of the three concentric circle regions and the powers of each circle in the gradient multi-concentric ring gradation annular region 3 are as follows:
2-50 degrees of the high-degree circular area are degrees of spectacle lenses needed to be worn by human eyes detected by an instrument;
the annular district 3 of concentric ring gradual change of ladder type has a plurality of annular rings 5 that follow each other closely, and every annular ring 5's lens number of degrees is the same, from the inner circle to the outer lane, and the degree of lens reduces gradually, and it is the 1 st circle to establish the minimum innermost round of diameter, and the biggest outermost round of diameter is the nth circle, and the function of the annular lens number of degrees of a certain circle of 1 st circle to nth circle is:
Y＝2.27X-102.27；
the variable Y is the degree of a certain circle in the ladder-type multi-concentric ring gradient annular area 3, and when X is equal to 1, Y is-50;
the variable X is a natural number in the range of 2 to 20 at a certain circle position of the ladder type multi-concentric ring gradient annular area 3;
x of the 1 st turn is 2, and X of the nth turn is 20;
the degree of the low-degree annular area 4 is the maximum annular degree value of the ladder-type multi-concentric-ring gradual change annular area 3, and the degree of the low-degree annular area 4 is one degree.
The diameter of the maximum edge line of each annular ring of the ladder-type multi-concentric-ring gradual change annular area 3 is as follows: the numerical function of the diameter of each ring outer edge line of the 1 st circle to the n +1 st circle of the ladder type multi-concentric ring gradient ring area 3 is as follows:
y＝1.0x+14；
the constant a is the outer ring diameter b of the height number circular area 2 minus 1.0, namely a is b-1.0; the diameter of the height area 2 with x equal to 1 is 15.00 mm;
the variable y is the diameter of the outer edge line of a circle in the gradient multi-concentric-ring gradient annular area 3, and the unit of y is millimeter;
the variable x is a natural number in the range of 2 to n +1 at a certain circle position of the ladder-type multi-concentric-ring gradient annular area 3;
x of the 1 st turn is 2, and X of the n-th turn is n + 1.
Example 2 ophthalmic lens having a zone of high power of-100 concentric rings asymptotically for children to partially restore vision
As shown in fig. 2, the distribution rule of the various power regions of the spectacle lens is as follows: the same as in example 1.
The specific lens powers of the three concentric circle regions and the powers of each circle in the gradient multi-concentric ring gradation annular region 3 are as follows:
2-100 degrees of the high-degree circular area are the degrees of the spectacle lenses which need to be worn by the eyes of people and are detected by an instrument;
the annular district 3 of concentric ring gradual change of ladder type has a plurality of annular rings 5 that follow each other closely, and every annular ring 5's lens number of degrees is the same, from the inner circle to the outer lane, and the degree of lens reduces gradually, and it is the 1 st circle to establish the minimum innermost round of diameter, and the biggest outermost round of diameter is the nth circle, and the function of the annular lens number of degrees of a certain circle of 1 st circle to nth circle is:
Y＝2.27X-202.27；
the variable Y is the degree of a certain circle in the ladder-type multi-concentric ring gradient annular area 3, and when X is equal to 1, Y is-100;
the variable X is a natural number in the range of 2 to 22 at a certain circle position of the ladder type multi-concentric ring gradient annular area 3;
x of the 1 st turn is 2, and X of the nth turn is 22;
the degree of the low-degree annular area 4 is the maximum annular degree value of the ladder-type multi-concentric-ring gradual change annular area 3, and the degree of the low-degree annular area 4 is one degree.
The diameter of the maximum edge line of each annular ring of the ladder-type multi-concentric-ring gradual change annular area 3 is as follows: the numerical function of the diameter of each ring outer edge line of the 1 st circle to the n +1 st circle of the ladder type multi-concentric ring gradient ring area 3 is as follows:
y＝1.0x+13；
the constant a is the outer ring diameter b of the height number circular area 2 minus 1.0, namely a is b-1.0; the diameter of the height area 2 with x equal to 1 is 14.00 mm;
the variable y is the diameter of the outer edge line of a circle in the gradient multi-concentric-ring gradient annular area 3, and the unit of y is millimeter;
the variable x is a natural number in the range of 2 to n +1 at a certain circle position of the ladder-type multi-concentric-ring gradient annular area 3;
x of the 1 st turn is 2, and X of the n-th turn is n + 1.
Example 3 ophthalmic lens having a zone of high power of-300 Children's concentric rings asymptotically capable of partially restoring vision
As shown in fig. 2, the distribution rule of the various power regions of the spectacle lens is as follows: the same as in example 1.
The specific lens powers of the three concentric circle regions and the powers of each circle in the gradient multi-concentric ring gradation annular region 3 are as follows:
2-300 degrees of the high-degree circular area are the degrees of the spectacle lenses which need to be worn by the eyes of people and are detected by an instrument;
the annular district 3 of concentric ring gradual change of ladder type has a plurality of annular rings 5 that follow each other closely, and every annular ring 5's lens number of degrees is the same, from the inner circle to the outer lane, and the degree of lens reduces gradually, and it is the 1 st circle to establish the minimum innermost round of diameter, and the biggest outermost round of diameter is the nth circle, and the function of the annular lens number of degrees of a certain circle of 1 st circle to nth circle is:
Y＝2.27X-302.27；
the variable Y is the degree of a certain circle in the ladder-type multi-concentric ring gradient annular area 3, and when X is equal to 1, Y is-300;
the variable X is a natural number in the range of 2 to 24 at a certain circle position of the ladder type multi-concentric ring gradient annular area 3;
x of the 1 st turn is 2, and X of the nth turn is 24;
the degree of the low-degree annular area 4 is the maximum annular degree value of the ladder-type multi-concentric-ring gradual change annular area 3, and the degree of the low-degree annular area 4 is one degree.
The diameter of the maximum edge line of each annular ring of the ladder-type multi-concentric-ring gradual change annular area 3 is as follows: the numerical function of the diameter of each ring outer edge line of the 1 st circle to the n +1 st circle of the ladder type multi-concentric ring gradient ring area 3 is as follows:
y＝1.0x+12；
the constant a is the outer ring diameter b of the height number circular area 2 minus 1.0, namely a is b-1.0; the diameter of the height area 2 with x equal to 1 is 13.00 mm;
the variable y is the diameter of the outer edge line of a circle in the gradient multi-concentric-ring gradient annular area 3, and the unit of y is millimeter;
the variable x is a natural number in the range of 2 to n +1 at a certain circle position of the ladder-type multi-concentric-ring gradient annular area 3;
x of the 1 st turn is 2, and X of the n-th turn is n + 1.
Example 4 ophthalmic lens with-400 Children's multiple concentric rings asymptotically capable of partial vision recovery
As shown in fig. 2, the distribution rule of the various power regions of the spectacle lens is as follows: the same as in example 1.
The specific lens powers of the three concentric circle regions and the powers of each circle in the gradient multi-concentric ring gradation annular region 3 are as follows:
2-400 degrees of the high-degree circular area are the degrees of the spectacle lenses which need to be worn by human eyes and are detected by an instrument;
the annular district 3 of concentric ring gradual change of ladder type has a plurality of annular rings 5 that follow each other closely, and every annular ring 5's lens number of degrees is the same, from the inner circle to the outer lane, and the degree of lens reduces gradually, and it is the 1 st circle to establish the minimum innermost round of diameter, and the biggest outermost round of diameter is the nth circle, and the function of the annular lens number of degrees of a certain circle of 1 st circle to nth circle is:
Y＝2.27X-402.27；
the variable Y is the degree of a certain circle in the ladder-type multi-concentric ring gradient annular area 3, and when X is equal to 1, Y is-400;
the variable X is a natural number in the range of 2 to 25 at a certain circle position of the ladder type multi-concentric ring gradient annular area 3;
x of the 1 st turn is 2, and X of the nth turn is 25;
the degree of the low-degree annular area 4 is the maximum annular degree value of the ladder-type multi-concentric-ring gradual change annular area 3, and the degree of the low-degree annular area 4 is one degree.
The diameter of the maximum edge line of each annular ring of the ladder-type multi-concentric-ring gradual change annular area 3 is as follows: the numerical function of the diameter of each ring outer edge line of the 1 st circle to the n +1 st circle of the ladder type multi-concentric ring gradient ring area 3 is as follows:
y＝1.0x+11；
the constant a is the outer ring diameter b of the height number circular area 2 minus 1.0, namely a is b-1.0; the diameter of the height area 2 with x equal to 1 is 12.00 mm;
the variable y is the diameter of the outer edge line of a circle in the gradient multi-concentric-ring gradient annular area 3, and the unit of y is millimeter;
the variable x is a natural number in the range of 2 to n +1 at a certain circle position of the ladder-type multi-concentric-ring gradient annular area 3;
x of the 1 st turn is 2, and X of the n-th turn is n + 1.
Example 5 ophthalmic lens with-600 high power zone for children and multiple concentric rings asymptotically capable of partially restoring vision
As shown in fig. 2, the distribution rule of the various power regions of the spectacle lens is as follows: the same as in example 1.
The specific lens powers of the three concentric circle regions and the powers of each circle in the gradient multi-concentric ring gradation annular region 3 are as follows:
2-600 degrees of the high-degree circular area are the degrees of the spectacle lenses which need to be worn by the eyes of people and are detected by an instrument;
the annular district 3 of concentric ring gradual change of ladder type has a plurality of annular rings 5 that follow each other closely, and every annular ring 5's lens number of degrees is the same, from the inner circle to the outer lane, and the degree of lens reduces gradually, and it is the 1 st circle to establish the minimum innermost round of diameter, and the biggest outermost round of diameter is the nth circle, and the function of the annular lens number of degrees of a certain circle of 1 st circle to nth circle is:
Y＝2.27X-602.27；
the variable Y is the degree of a certain circle in the ladder-type multi-concentric ring gradient annular area 3, and when X is equal to 1, Y is-600;
the variable X is a natural number in the range of 2 to 26 at a certain circle position of the ladder type multi-concentric ring gradient annular area 3;
x of the 1 st turn is 2, and X of the nth turn is 26;
the degree of the low-degree annular area 4 is the maximum annular degree value of the ladder-type multi-concentric-ring gradual change annular area 3, and the degree of the low-degree annular area 4 is one degree.
The diameter of the maximum edge line of each annular ring of the ladder-type multi-concentric-ring gradual change annular area 3 is as follows: the numerical function of the diameter of each ring outer edge line of the 1 st circle to the n +1 st circle of the ladder type multi-concentric ring gradient ring area 3 is as follows:
y＝1.0x+9；
the constant a is the outer ring diameter b of the height number circular area 2 minus 1.0, namely a is b-1.0; the diameter of the height area 2 with x equal to 1 is equal to 10.00 mm;
the variable y is the diameter of the outer edge line of a circle in the gradient multi-concentric-ring gradient annular area 3, and the unit of y is millimeter;
the variable x is a natural number in the range of 2 to n +1 at a certain circle position of the ladder-type multi-concentric-ring gradient annular area 3;
x of the 1 st turn is 2, and X of the n-th turn is n + 1.
Example 6 ophthalmic lens having a zone of high power of-900 child's multiple concentric rings asymptotically capable of partially restoring vision
As shown in fig. 2, the distribution rule of the various power regions of the spectacle lens is as follows: the same as in example 1.
The specific lens powers of the three concentric circle regions and the powers of each circle in the gradient multi-concentric ring gradation annular region 3 are as follows:
2-900 degrees of the high-degree circular area are the degrees of the spectacle lenses which need to be worn by the eyes of people and are detected by an instrument;
the annular district 3 of concentric ring gradual change of ladder type has a plurality of annular rings 5 that follow each other closely, and every annular ring 5's lens number of degrees is the same, from the inner circle to the outer lane, and the degree of lens reduces gradually, and it is the 1 st circle to establish the minimum innermost round of diameter, and the biggest outermost round of diameter is the nth circle, and the function of the annular lens number of degrees of a certain circle of 1 st circle to nth circle is:
Y＝2.27X-902.27；
the variable Y is the degree of a certain circle in the ladder-type multi-concentric ring gradient annular area 3, and when X is equal to 1, Y is-900;
the variable X is a natural number in the range of 2 to 28 of the position of a certain circle of the ladder type multi-concentric ring gradient annular area 3;
x of the 1 st turn is 2, and X of the nth turn is 28;
the degree of the low-degree annular area 4 is the maximum annular degree value of the ladder-type multi-concentric-ring gradual change annular area 3, and the degree of the low-degree annular area 4 is one degree.
The diameter of the maximum edge line of each annular ring of the ladder-type multi-concentric-ring gradual change annular area 3 is as follows: the numerical function of the diameter of each ring outer edge line of the 1 st circle to the n +1 st circle of the ladder type multi-concentric ring gradient ring area 3 is as follows:
y＝1.0x+7；
the constant a is the outer ring diameter b of the height number circular area 2 minus 1.0, namely a is b-1.0; the diameter of the height area 2 with x equal to 1 is 8.00 mm;
the variable y is the diameter of the outer edge line of a circle in the gradient multi-concentric-ring gradient annular area 3, and the unit of y is millimeter;
the variable x is a natural number in the range of 2 to n +1 at a certain circle position of the ladder-type multi-concentric-ring gradient annular area 3;
x of the 1 st turn is 2, and X of the n-th turn is n + 1.
Claims (2)
1. Many concentric rings of children asymptotically can partial lens of recovering vision, include an eye lens (1), its characterized in that: the spectacle lens is characterized in that the spectacle lens (1) is at least divided into three concentric circle areas, wherein the three areas are a height number area (2), a ladder-type multi-concentric ring gradual change annular area (3) and a low-power annular area (4), the center of the height number circular area (2) is positioned, the outer ring of the height number circular area (2) is the ladder-type multi-concentric ring gradual change annular area (3), the outer ring of the ladder-type multi-concentric ring gradual change annular area (3) is the low-power annular area (4), and the power of the height number circular area (2) is the power of a spectacle lens which needs to be worn by a human eye through instrument detection;
the annular district (3) of concentric ring gradual change of ladder type has a plurality of annular rings (5) that follow each other closely, and the lens number of degrees of every annular ring (5) is the same, from the inner circle to the outer lane, and the degree of lens reduces gradually, and it is the 1 st circle to establish the minimum innermost round of diameter, and the biggest outermost round of diameter is the nth circle, and the function of the annular lens number of degrees of a certain circle of 1 st circle to nth circle is:
a first formula, Y ═ 2.27X-52.27;
the variable Y is the degree of a certain circle in the gradient multi-concentric ring gradient annular area (3), and when X is equal to 1, Y is-50;
the variable X is a natural number in the range of 2 to n +1 at a certain circle position of the ladder-type multi-concentric-ring gradient annular area (3);
x of the 1 st turn is 2, and X of the nth turn is n + 1;
a second formula, Y ═ 2.27X-102.27;
the variable Y is the degree of a certain circle in the gradient multi-concentric ring gradient annular area (3), and when X is equal to 1, Y is-100;
the variable X is a natural number in the range of 2 to n +1 at a certain circle position of the ladder-type multi-concentric-ring gradient annular area (3);
x of the 1 st turn is 2, and X of the nth turn is n + 1;
a third formula, wherein Y ═ 2.27X-302.27;
the variable Y is the degree of a certain circle in the gradient multi-concentric ring gradient annular area (3), and when X is equal to 1, Y is-300;
the variable X is a natural number in the range of 2 to n +1 at a certain circle position of the ladder-type multi-concentric-ring gradient annular area (3);
x of the 1 st turn is 2, and X of the nth turn is n + 1;
a fourth formula, wherein Y is 2.27X-402.27;
the variable Y is the degree of a certain circle in the gradient multi-concentric ring gradient annular area (3), and when X is equal to 1, Y is-400;
the variable X is a natural number in the range of 2 to n +1 at a certain circle position of the ladder-type multi-concentric-ring gradient annular area (3);
x of the 1 st turn is 2, and X of the nth turn is n + 1;
a fifth formula, wherein Y is 2.27X-602.27;
the variable Y is the degree of a certain circle in the gradient multi-concentric ring gradient annular area (3), and when X is equal to 1, Y is-600;
the variable X is a natural number in the range of 2 to n +1 at a certain circle position of the ladder-type multi-concentric-ring gradient annular area (3);
x of the 1 st turn is 2, and X of the nth turn is n + 1;
a sixth formula, wherein Y is 2.27X-902.27;
the variable Y is the degree of a certain circle in the gradient multi-concentric ring gradient annular area (3), and when X is equal to 1, Y is-900;
the variable X is a natural number in the range of 2 to n +1 at a certain circle position of the ladder-type multi-concentric-ring gradient annular area (3);
x of the 1 st turn is 2, and X of the nth turn is n + 1;
it can be seen that the general formula of the lens power of each ring is Y ═ 2.27X + a
The constant A is the degree B plus-2.27 of the height number circular area (2), namely A ═ B-2.27
The variable Y is the degree of a certain circle in the ladder-type multi-concentric-ring gradual change annular area (3);
the variable X is a natural number in the range of 2 to n +1 at a certain circle position of the ladder-type multi-concentric-ring gradient annular area (3);
x of the 1 st turn is 2, and X of the nth turn is n + 1;
the degree of the low-degree annular area (4) is the maximum annular degree value of the ladder-type multi-concentric-ring gradual change annular area (3), and the degree of the low-degree annular area (4) is one degree.
2. The method of claim 1, wherein: the diameter numerical function of each ring-shaped outer edge line of the 1 st to the n +1 st circles of the ladder-type multi-concentric ring gradient ring-shaped area (3) is as follows:
y＝1.0x+a；
the constant a is the peripheral diameter b of the height number circular area (2) minus 1.0, namely a is b-1.0;
the variable y is the diameter of the outer edge line of a circle in the ladder-type multi-concentric-ring gradient annular area (3), and the unit of y is millimeter;
the variable x is a natural number in the range of 2 to n +1 at a certain circle position of the ladder-type multi-concentric-ring gradient annular area (3);
x of the 1 st turn is 2, and X of the n-th turn is n + 1.
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