CN104181701A - Lens apparatus and vision control method - Google Patents
Lens apparatus and vision control method Download PDFInfo
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- CN104181701A CN104181701A CN201310199327.1A CN201310199327A CN104181701A CN 104181701 A CN104181701 A CN 104181701A CN 201310199327 A CN201310199327 A CN 201310199327A CN 104181701 A CN104181701 A CN 104181701A
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Abstract
A lens apparatus is worn by a user, light passes and enters an eyeball of the user and an image is formed on a retina or nearby a retina, and the lens apparatus comprises a central optical zone and a peripheral optical zone surrounding the central optical zone. The central optical zone is used to enable light passing through the central optical zone to be imaged on the retina. The peripheral optical zone has curvature segments formed by multiple segments in connection, the curvature segments are used to enable passed light to be imaged nearby the retina, the distance between the light imaging position and the retina is different because two adjacent curvature segments are different in bending degree, and the imaging positions are all nearby the front of the retina or all nearby the rear of the retina. Therefore, the probability that the light imaging positions of the peripheral optical zone are close to the optimum distance to the retina or exactly have the optimum distance to the retina is increased.
Description
Technical field
The present invention relates to a kind of lens device, particularly relate to a kind of lens device and eyesight control method of controlling for eyesight.
Background technology
Consult Fig. 1 and Fig. 2, existing a kind of eyeglass 1 of controlling for myopia, the central optical zone 11 and one that comprises a circle is 11 periphery Optical Region 12 around around central optical zone, central optical zone 11 has single curvature separately with periphery Optical Region 12, wherein central optical zone 11 is the person's of being used in conjunction with eyesights, with so that light clearly images on retina 19,12 of periphery Optical Region are to make the Q point of image formation by rays before retina 19.Thus, can provide image clearly in visual field central authorities, because the number of degrees of peripheral visual field are slightly not enough, can delay or stop the situation of myopia development simultaneously.
Each eyeglass that manufacturer manufactures, mainly being to provide different central optical zone 11 selects according to its number of degrees to user, for 12 of periphery Optical Region, be to adopt the single curvature that reduces by default number of degrees compared with the number of degrees of central optical zone 11, so, in the situation that hypothesis people's eyeball is the body of rule, the distance of Q point and retina 19 will be estimated as expected.Yet why, so the curvature selection of periphery Optical Region 12 can be a problem to the distance that current research it be unclear that aforesaid Q point and retina the best.In addition, people's eyeball and retina 19 are not the body of absolute rule, and therefore aforesaid Q point and amphiblestroid distance actually might not be as in advance desired.Therefore, how the position of the imaging of periphery Optical Region 12 is designed and can be applicable to most people eyeball, reach the object that delays or stop myopia development of expection, just become a theme that is worth research.
Summary of the invention
The object of the present invention is to provide a kind ofly provides peripheral visual field a plurality of lens devices of image out of focus in various degree.
Lens device of the present invention, for a user, wear, and for light, by entering this user's a eyeball, form picture near a retina or this retina, this lens device comprises: a central optical zone, with so that the image formation by rays by this central optical zone on this retina; This lens device also comprises:
The one periphery Optical Region around this central optical zone, there is the connected curvature section of multistage, respectively this curvature section with so that the image formation by rays passing through near this retina, the degree of crook of two adjacent curvature sections is different, and make the position of image formation by rays different from this amphiblestroid distance, and the position of described imaging is all positioned near this amphiblestroid the place ahead, or be all positioned near this amphiblestroid rear.
Preferably, the intersection of described curvature section is discontinuous stepped or linking continuously.
Preferably, this central optical zone is low for the degree of crook of this periphery Optical Region.
Preferably, this lens device is an eyeglass or a contact lens.
Preferably, this lens device also comprises a marginarium around this periphery Optical Region, this marginarium comprise a plurality of this lens device one away from the prism section of radially extending on the outside surface of this eyeball, described prism section is all thick by being thinned in a clockwise direction, or all with counterclockwise thick by being thinned to, make this lens device with the speed of being scheduled to, be subject to rotate due to action that user blinks when wearing, and then make the speed rotation to be scheduled to of the described curvature section of this periphery Optical Region and the position of image formation by rays.
More preferably, this lens device is a contact lens.
Another object of the present invention is to provide a kind of provides peripheral visual field a plurality of eyesight control methods of image out of focus in various degree.
Eyesight control method of the present invention comprises: make a lens device be positioned at an eyeball the place ahead, utilize the curvature of a central optical zone of this lens device to make image formation by rays by this central optical zone on this retina, and provide a sharp image in visual field central authorities; The method also comprises:
Utilize the curvature of a first curvature section of this lens device to make image formation by rays by this first curvature section in last the first distance of this retina, and provide one first image out of focus in peripheral visual field, the distance of this retina and this first distance is the first distance.
Utilize the curvature of a torsion section of this lens device to make image formation by rays by this torsion section in the last second distance of this retina place, and provide one second image out of focus in peripheral visual field, the distance at this retina and this second distance place is second distance.
This first distance is different from this second distance and be all greater than zero.
Preferably, by this lens device in this eyeball the place ahead, with the speed rotation of being scheduled to, and then the position of imaging after making first, second curvature section of this periphery Optical Region and light by aforementioned first, second curvature section rotates with the speed of being scheduled to.
Another object of the present invention is to provide a kind of provides peripheral visual field a plurality of eyesight control methods of image out of focus in various degree.
Eyesight control method of the present invention comprises: make a lens device be positioned at an eyeball the place ahead, utilize the curvature of a central optical zone of this lens device to make image formation by rays by this central optical zone on this retina, and provide a sharp image in visual field central authorities; The method also comprises:
Utilize the curvature of a first curvature section of this lens device to make image formation by rays one first distance after this retina by this first curvature section, and provide one first image out of focus in peripheral visual field, the distance of this retina and this first distance is the first distance.
Utilize the curvature of a torsion section of this lens device to make the image formation by rays second distance place after this retina by this torsion section, and provide one second image out of focus in peripheral visual field, the distance at this retina and this second distance place is second distance.
This first distance is different from this second distance and be all greater than zero.
Preferably, by this lens device in this eyeball the place ahead, with the speed rotation of being scheduled to, and then the position of imaging after making first, second curvature section of this periphery Optical Region and light by aforementioned first, second curvature section rotates with the speed of being scheduled to.
Beneficial effect of the present invention is: the position that makes near image formation by rays a plurality of different distance this retina of passing through by this periphery Optical Region, the position that increases imaging near or position in the probability of the position with retina optimum distance, and can be applicable to most people eyeball, reach the object that delays or stop vision error heighten degree of expection.
Accompanying drawing explanation
Fig. 1 is a floor map, and prior art is described;
Fig. 2 is a light path schematic diagram, and prior art is described;
Fig. 3 is a floor map, and the first preferred embodiment of lens device of the present invention is described;
Fig. 4 is a light path schematic diagram, and this first preferred embodiment is described;
Fig. 5 is a floor map, and the second preferred embodiment of lens device of the present invention is described; And
Fig. 6 is an elevational schematic view, and the prism section of this second preferred embodiment is described.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
Consult Fig. 3 and Fig. 4, the first preferred embodiment of lens device 2 of the present invention, for a user, wear, and image near a retina 31 or this retina 31 by entering this user's a eyeball 3 for light, this lens device 2 comprises a central optical zone 21 and a periphery Optical Region 22 around this central optical zone 21.
The curvature of this central optical zone 21 can make image formation by rays by this central optical zone 21 on this retina 31, and provides image clearly in visual field central authorities.
This periphery Optical Region 22 has the connected curvature section of multistage, to there are four curvature sections in the present embodiment, be respectively first curvature section 221, torsion section 222, the 3rd curvature section 223 and the 4th curvature section 224, but not as limit, also can be two, three, five and more than, or even 360 be curvature section of every degree.
Respectively this curvature section with so that the image formation by rays passing through near this retina 31, the degree of crook of two adjacent curvature sections is different, and make the position of image formation by rays different from the distance of this retina 31, and in peripheral visual field, provide a plurality of images out of focus in various degree, the position that makes imaging near or the probability of position in the position with retina optimum distance increase.
A kind of eyesight control method of the present invention, wears above-mentioned lens device 2 for user, and can be applicable to most people eyeball, reach the object that delays or stop vision error heighten degree of expection.
It should be noted that, the position of aforesaid image formation by rays is different from the distance of this retina 31, by the different degree of crook of two adjacent curvature sections, caused, because user's retina 31 is erratic body, in general, although this of the position of image formation by rays and this retina 31 apart from the more difficult prediction of meeting, still can increase the probability that the position of imaging is close or position occurs in this situation with retina optimum distance.In Fig. 4, illustrate that presenting first curvature section 221 in the present embodiment makes the primary importance P1 of image formation by rays and the distance d1 of retina 31 and the 3rd curvature section 223 make the 3rd position P3 of image formation by rays different with the distance d3 of retina 31.In the present embodiment, the degree of crook of this four curvature section is all not identical, they but not as limit, for example, can be also that first curvature section 221 is identical with the 3rd curvature section 223, torsion section 222 is identical with the 4th curvature section 224, and first curvature section 221 be different from torsion section 222.So, utilize the first curvature section 221 of this lens device 2 to make image formation by rays by this first curvature section 221 one first distance of (or rear) before this retina 31, and providing one first image out of focus in peripheral visual field, the distance of this retina and this first distance is the first distance; Utilize the torsion section 222 of this lens device 2 to make image formation by rays by this torsion section 222 second distance place of (or rear) before this retina 31, and providing one second image out of focus in peripheral visual field, the distance at this retina and this second distance place is second distance; The first distance is different from second distance and be all greater than zero.
It should be noted that, lens device 2 of the present invention is feasible on manufacturing, as described in european patent number EP0872307, mainly to use turning method to add the vibrations of fixing a cutting tool, its principle is to make the vibrations of cutter accurately to coordinate the rotation of the rotating shaft of lathe, therefore in rotating shaft, revolve in the process turning around, the degree of depth of cutter cutting can change according to the angle of rotation, and can produce nonaxisymmetrical eyeglass.
It is worth mentioning that, in the present embodiment, the position of described imaging is all positioned near the place ahead of this retina 31, or is all positioned near the rear of this retina 31.
More specifically, the degree of crook of this periphery Optical Region 22 or rectification number of degrees that provide are provided this central optical zone 21 is low, that is to say, during wish treatment myopia, user's image-forming range before being corrected is too short, and after putting on this lens device 2, after correct this central optical zone 21, light can be imaged on retina 31, and light can image near the place ahead of this retina 31 after correct this periphery Optical Region 22.On the contrary, during wish treatment long sight, user's image-forming range before being corrected is long, and after putting on this lens device 2, after correct central optical zone 21, light can be imaged on retina 31 equally, and light can image near these retina 31 rears after correct this periphery Optical Region 22.
What remark additionally is, it is discontinuous stepped that the intersection of described curvature section can be, and can be also continuously, progressively be connected, and two kinds of modes are all feasible, visual demand is used different designs, for example, can select according to the restriction on manufacturing or the restriction of optic diameter size.This lens device 2 is a contact lens in the present embodiment, but also can be an eyeglass.
Consult Fig. 5, 6, the second preferred embodiment and first embodiment of lens device 2 of the present invention are roughly the same, it is that to aim at contact lens designed that its difference is in this lens device 2 of the present embodiment, this lens device 2 also comprises a marginarium 23 around this periphery Optical Region 22, this marginarium 23 comprise a plurality of this lens device 2 one away from the prism section 231 of radially extending on the outside surface of this eyeball 3, described prism section 231 is all thick by being thinned in a clockwise direction in the present embodiment, but not as limit, also can be all with counterclockwise thick by being thinned to, adjust whereby the difference in height distance between thin and thick, gradient, make this lens device 2 when wearing with the speed of being scheduled to because of the action of user nictation in this eyeball the place ahead with the speed rotation of being scheduled to, and then the position of imaging after making the multistage curvature section of this periphery Optical Region 22 and light by the multistage curvature section of periphery Optical Region 22 rotates with the speed of being scheduled to.Thus, can avoid upper some part of retina 31 (seeing Fig. 4) to continue there is not good distance with the position of imaging, and can be applicable to the eyeball 3 of most people, reach the object that delays or stop vision error heighten degree of expection.
In sum, by this periphery Optical Region 22, make the image formation by rays passing through near the position of these retina 31 a plurality of different distance, the position that makes imaging near or the probability of position in the position with retina 31 optimum distances increase, and the rotation by lens device 2, avoid some part on retina 31 to continue there is not good distance with the position of imaging, and can be applicable to most people eyeball 3, reach the object that delays or stop vision error heighten degree of expection, therefore really can reach the present invention's object.
As described above, be only the present invention's preferred embodiment, and when not limiting with this scope of the invention process, the simple equivalence of generally being done according to the claims in the present invention and invention description content changes and modifies, and all still belongs to the scope that the present invention is contained.
Claims (10)
1. a lens device, for a user, wear, and for light, by entering this user's a eyeball, form picture near a retina or this retina, this lens device comprises: a central optical zone, with so that the image formation by rays by this central optical zone on this retina; It is characterized in that, this lens device also comprises:
The one periphery Optical Region around this central optical zone, there is the connected curvature section of multistage, respectively this curvature section with so that the image formation by rays passing through near this retina, the degree of crook of two adjacent curvature sections is different, and make the position of image formation by rays different from this amphiblestroid distance, and the position of described imaging is all positioned near this amphiblestroid the place ahead, or be all positioned near this amphiblestroid rear.
2. lens device according to claim 1, is characterized in that: the intersection of described curvature section is discontinuous stepped or linking continuously.
3. lens device according to claim 1, is characterized in that: the degree of crook of this periphery Optical Region this central optical zone is low.
4. according to the lens device described in claim 1 or 2 or 3, it is characterized in that: this lens device is an eyeglass or a contact lens.
5. according to the lens device described in claim 1 or 2 or 3, it is characterized in that: this lens device also comprises a marginarium around this periphery Optical Region, this marginarium comprise a plurality of this lens device one away from the prism section of radially extending on the outside surface of this eyeball, described prism section is all thick by being thinned in a clockwise direction, or all with counterclockwise thick by being thinned to, make this lens device when wearing, with the speed of being scheduled to, be subject to due to action that user blinks and rotate, and then the described curvature section of this periphery Optical Region and the position of image formation by rays are rotated with the speed of being scheduled to.
6. lens device according to claim 5, is characterized in that: this lens device is a contact lens.
7. an eyesight control method, comprises: make a lens device be positioned at an eyeball the place ahead, utilize the curvature of a central optical zone of this lens device to make image formation by rays by this central optical zone on this retina, and provide a sharp image in visual field central authorities; It is characterized in that, the method also comprises:
Utilize the curvature of a first curvature section of this lens device to make image formation by rays by this first curvature section in last the first distance of this retina, and provide one first image out of focus in peripheral visual field, the distance of this retina and this first distance is the first distance;
Utilize the curvature of a torsion section of this lens device to make image formation by rays by this torsion section in the last second distance of this retina place, and provide one second image out of focus in peripheral visual field, the distance at this retina and this second distance place is second distance; And
This first distance is different from this second distance and be all greater than zero.
8. lens device according to claim 7, it is characterized in that: by this lens device in this eyeball the place ahead, with the speed rotation of being scheduled to, and then the position of imaging after making first, second curvature section of this periphery Optical Region and light by aforementioned first, second curvature section rotates with the speed of being scheduled to.
9. an eyesight control method, comprises: make a lens device be positioned at an eyeball the place ahead, utilize the curvature of a central optical zone of this lens device to make image formation by rays by this central optical zone on this retina, and provide a sharp image in visual field central authorities; It is characterized in that, the method also comprises:
Utilize the curvature of a first curvature section of this lens device to make image formation by rays one first distance after this retina by this first curvature section, and provide one first image out of focus in peripheral visual field, the distance of this retina and this first distance is the first distance;
Utilize the curvature of a torsion section of this lens device to make the image formation by rays second distance place after this retina by this torsion section, and provide one second image out of focus in peripheral visual field, the distance at this retina and this second distance place is second distance; And
This first distance is different from this second distance and be all greater than zero.
10. lens device according to claim 9, it is characterized in that: by this lens device in this eyeball the place ahead, with the speed rotation of being scheduled to, and then the position of imaging after making first, second curvature section of this periphery Optical Region and light by aforementioned first, second curvature section rotates with the speed of being scheduled to.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310199327.1A CN104181701B (en) | 2013-05-24 | 2013-05-24 | Lens device and vision control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310199327.1A CN104181701B (en) | 2013-05-24 | 2013-05-24 | Lens device and vision control method |
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| CN104181701A true CN104181701A (en) | 2014-12-03 |
| CN104181701B CN104181701B (en) | 2016-04-13 |
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| CN106405867A (en) * | 2015-07-28 | 2017-02-15 | 亨泰光学股份有限公司 | Contact lens and processing method thereof |
| CN110221454A (en) * | 2018-03-01 | 2019-09-10 | 依视路国际公司 | Lens element |
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| Publication number | Publication date |
|---|---|
| CN104181701B (en) | 2016-04-13 |
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