CN218601621U - Wide-angle double-lens element - Google Patents
Wide-angle double-lens element Download PDFInfo
- Publication number
- CN218601621U CN218601621U CN202123039269.5U CN202123039269U CN218601621U CN 218601621 U CN218601621 U CN 218601621U CN 202123039269 U CN202123039269 U CN 202123039269U CN 218601621 U CN218601621 U CN 218601621U
- Authority
- CN
- China
- Prior art keywords
- lens element
- element body
- area
- wide
- astigmatism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 201000009310 astigmatism Diseases 0.000 claims abstract description 80
- 230000007423 decrease Effects 0.000 claims description 2
- 230000000007 visual effect Effects 0.000 abstract description 12
- 210000000887 face Anatomy 0.000 description 5
- 239000011521 glass Substances 0.000 description 5
- 208000001491 myopia Diseases 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 4
- 208000029091 Refraction disease Diseases 0.000 description 3
- 230000004430 ametropia Effects 0.000 description 3
- 208000014733 refractive error Diseases 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000002350 accommodative effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001886 ciliary effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Abstract
The utility model provides a wide-angle bifocal lens element, which comprises a lens element body, wherein the lens element body is divided into a first lens element body and a second lens element body by a horizontal axis, and the first lens element body is positioned above the second lens element body; the first lens element body is a distance light area, the second lens element body is an astigmatism area and a near light area, the astigmatism area is positioned on one side close to a horizontal axis, the astigmatism area comprises a first astigmatism area and a second astigmatism area, the first astigmatism area and the second astigmatism area are symmetrically distributed by taking a vertical axis as a reference, the first astigmatism area and the second astigmatism area are respectively surrounded by an upper arc line and a lower arc line, and the upper arc line and the lower arc line respectively extend inwards from the edge of the second lens element body and intersect with each other. The wide-angle double-light lens element has a wide visual angle and can eliminate the image jump phenomenon of the common double-light lens.
Description
Technical Field
The utility model belongs to the technical field of glasses, concretely relates to two lens components of wide angle.
Background
When the eye adjusting force is weakened due to the aging of a person, the person needs to respectively correct the vision for far vision and the vision for near vision, and at the moment, the person often needs to be provided with two pairs of glasses to respectively wear the glasses to realize the purpose of seeing far vision and near vision, so that the daily life is very inconvenient. Therefore, grinding two different diopters on the same lens to form two-zone lenses, i.e. bifocal lenses or bifocal lenses, is the key point for solving the problems. However, the far-vision focus and the near-vision focus of the existing bifocals glasses have jumps, and the far-vision focus and the near-vision focus cannot be well matched with the visual angle of the eyes of people, so that the wearing feeling is very uncomfortable, and further development and preparation are still needed.
CN202166792U discloses a bifocal lens suitable for adolescent ametropia patients, comprising a main sheet and a sub-sheet, wherein the main sheet is a far-looking structure, the sub-sheet is a near-looking part, the bifocal lens is an aspheric lens as a whole, and a film layer is coated on the bifocal lens surface, and the film layer comprises an anti-wear film, an anti-reflection film and an anti-pollution film. The myopic eye patient uses the lens to increase the ciliary muscle strength of the eye and enlarge the accommodative reserve, thereby achieving the purposes of improving the vision of the ametropia eye and reducing the diopter of the ametropia eye.
CN111948835A discloses a stealth double-optical lens, which comprises a convex spherical surface, an excircle, a glazing area, a lower optical area and other structures, wherein the convex spherical surface, the excircle, the glazing area and the lower optical area form an integrated lens, the excircle is arranged on the periphery of the convex spherical surface, and the glazing area is arranged at the upper end of the lower optical area. The bifocal lens is formed by combining arc surfaces with the same radius, the appearance cannot see the combination line of an upper light area and a lower light area, the phenomenon of sudden bulge in the middle of the lens is avoided, the bifocal lens is almost not different from the common lens in appearance, and no strange and other feeling is generated.
Based on the research, the double-lens can meet the requirements of people for looking far and near at the same time, but the problems of image jumping, poor visual effect and low wearing comfort still exist at present. Therefore, the development of a bifocal lens having wider near-vision and far-vision fields and improved wearing comfort is a problem to be solved urgently at present.
SUMMERY OF THE UTILITY MODEL
To the deficiencies of the prior art, an object of the present invention is to provide a wide-angle bifocal lens element. The wide-angle double-light lens element can eliminate the image skipping phenomenon of a common double-light lens, and improve the visual effect and wearing comfort of a wearer.
To achieve the purpose, the utility model adopts the following technical proposal:
in a first aspect, the present disclosure provides a wide-angle bifocal lens element that includes a lens element body divided by a horizontal axis into a first lens element body and a second lens element body, the first lens element body being located above the second lens element body;
the first lens element body is a distance light zone, the second lens element body is an astigmatism zone and a near light zone, the astigmatism zone is positioned at one side close to the horizontal axis, the astigmatism zone comprises a first astigmatism zone and a second astigmatism zone, the first astigmatism zone and the second astigmatism zone are symmetrically distributed by taking the vertical axis as a reference, the first astigmatism zone and the second astigmatism zone are respectively enclosed by an upper arc and a lower arc, and the upper arc and the lower arc respectively extend inwards from the edge of the second lens element body and intersect;
wherein the horizontal axis refers to a horizontal meridian passing through the center of the lens element body, the vertical axis refers to a vertical axis perpendicular to the horizontal axis, the downward arc faces the horizontal axis, and the upward arc faces opposite the downward arc.
The utility model relates to a distance light region among the two optical lens element of wide angle is used for correcting the visual defect of wearer when looking far away, and it is located the first half of lens element body, and passing light region and astigmatism are regional to be located the latter half of lens element body, the astigmatism is regional to passing light region by the regional quick transition of distance light at lens element body center, and the astigmatism compression is regional and become the line-shaped distribution in both sides. The wide-angle double-light lens element has wide near-sight and far-sight fields, eliminates the image jump phenomenon of the common double-light lens, improves the visual effect of a patient and the wearing comfort, and can rotate 2-8 degrees around a central point according to the left eye and the right eye of the lens, so that the visual field of a near light area is wider, and a far light area is hardly influenced.
Preferably, the area of the astigmatism region is 1/2-2/3 of the area of the second lens element body, for example, 1/2 or 2/3, but not limited to the values listed, and other values not listed in this range are also applicable.
Preferably, the diopter range of the high beam area is-20.00 to 15.00D.
the-20.00-15.00D may be-20.00D, -15.00D, -10.00D, -5.00D, 0.00D, 5.00D, 10.00D or 15.00D, but is not limited to the values listed, and other values not listed in the range are also applicable.
Preferably, the diopters of the high beam region are uniformly distributed in a spherical manner.
The spherical light mode distribution means that the luminosity in the whole remote area is kept constant at a fixed value.
Preferably, the diopter of the high beam area decreases toward the edge of the lens element body with the vertically moved upward position of the center of the lens element body as the center according to the rule of aspheric change.
The rule of the non-spherical change means that the position after the upward shift is the center and the edge luminosity is gradually changed in a gradient rule.
Preferably, the distance of the vertical upward movement is 4-8mm.
The above-mentioned 4 to 8mm may be 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm or 8mm, but is not limited to the above-mentioned values, and other values not listed in the range are also applicable.
Preferably, the low beam zone has a plus power relative to the high beam zone.
Preferably, the add power is in the range of 0.50-4.00D.
The above-mentioned 0.50 to 4.00D may be 0.50D, 0.75D, 1.00D, 1.25D, 1.50D, 1.75D, 2.00D, 2.25D, 2.50D, 2.75D, 3.00D, 3.25D, 3.50D, 3.75D or 4.00D, etc., but is not limited to the enumerated values, and other values not enumerated in the range are also applicable.
Preferably, the add power is in the range of 1.00-3.00D.
Preferably, the wide angle bifocal lens element is distributed on the anterior or posterior surface of the lens.
The front surface is the surface of one side far away from eyes when the lens is completely mounted and worn, and the rear surface is the surface of one side close to eyes when the lens is completely mounted and worn.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a two lens element of wide angle, the regional and wide visual angle that all has of passing light region of distance light, the regional compression of astigmatism is banded and distributes, can eliminate the jump of image phenomenon of ordinary two light lenses, can also realize the processing that lens element moved heart simultaneously, makes lens element carry out 2-8 rotations around the central point according to the left and right sides eye of lens for the regional field of vision of passing light is wider more, and the region of distance light does not receive any influence almost, applicable processing in multiple large frame glasses.
Drawings
Fig. 1 is a schematic structural view of a wide-angle bifocal lens element according to the present invention;
wherein, 1 is a high beam area, 2 is a low beam area, 31 is a first astigmatism area, and 32 is a second astigmatism area;
fig. 2 is a graph showing the diopter distribution of a wide-angle bifocal lens element according to the present invention;
fig. 3 is a graph showing the astigmatism distribution of a wide-angle bifocal lens element according to the present invention.
Detailed Description
It is to be understood that in the description of the present invention, the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are 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," "second," etc. may explicitly or implicitly include one or more of that feature.
The structure of the wide-angle dual-lens element of the present invention is schematically shown in fig. 1, wherein 1 is a high beam region, 2 is a low beam region, 31 is a first astigmatism region, and 32 is a second astigmatism region. The technical solution of the present invention is further explained by the following embodiments.
Example 1
The present embodiment provides a wide-angle bifocal lens element comprising a lens element body divided by a horizontal axis into a first lens element body and a second lens element body, the first lens element body being located above the second lens element body;
the first lens element body is a distance light zone 1, the second lens element body is an astigmatism zone and a near light zone 2, the astigmatism zone is positioned at one side close to the horizontal axis, the astigmatism zone comprises a first astigmatism zone 31 and a second astigmatism zone 32, the first astigmatism zone 31 and the second astigmatism zone 32 are symmetrically distributed by taking the vertical axis as a reference, the first astigmatism zone 31 and the second astigmatism zone 32 are respectively enclosed by an upper arc and a lower arc, and the upper arc and the lower arc respectively extend inwards from the edge of the second lens element body and intersect;
wherein the horizontal axis refers to a horizontal meridian passing through the center of the lens element body, the vertical axis refers to a vertical axis perpendicular to the horizontal axis, the downward arc faces the horizontal axis, and the upward arc faces opposite the downward arc.
The area of the astigmatism area accounts for 1/2 of the area of the second lens element body, the diopter value of the high beam area 1 is-10.00D, and the diopter of the high beam area 1 is distributed in a spherical light mode and keeps consistent. The low beam region 2 has a positive addition of luminosity to the high beam region 1, which has a value of 1.00D. The wide-angle bifocal lens elements are distributed on the front surface of the lens, and the front surface is the surface of one side of the lens, which is far away from the eyes when the lens is worn after being completely installed.
The wide-angle bifocal lens element provided by the embodiment has wide visual angle in both the high beam area 1 and the low beam area 2, and the astigmatic areas are compressed and distributed in a band shape, so that the image jump phenomenon of a common bifocal lens can be eliminated.
Example 2
The present embodiment provides a wide-angle bifocal lens element comprising a lens element body divided by a horizontal axis into a first lens element body and a second lens element body, the first lens element body being located above the second lens element body;
the first lens element body is a high beam area 1, the second lens element body is an astigmatism area and a low beam area 2, the astigmatism area is positioned on one side close to a horizontal axis, the astigmatism area comprises a first astigmatism area 31 and a second astigmatism area 32, the first astigmatism area 31 and the second astigmatism area 32 are symmetrically distributed by taking a vertical axis as a reference, the first astigmatism area 31 and the second astigmatism area 32 are respectively enclosed by an upper arc line and a lower arc line, and the upper arc line and the lower arc line respectively extend inwards from the edge of the second lens element body and intersect;
wherein the horizontal axis refers to a horizontal meridian passing through the center of the lens element body, the vertical axis refers to a vertical axis perpendicular to the horizontal axis, the downward arc faces the horizontal axis, and the upward arc faces opposite the downward arc.
The area of the astigmatism area accounts for 1/2 of the area of the second lens element body, the diopter value of the high beam area 1 is-5.00D, and the diopter of the high beam area 1 is distributed in a spherical light mode and keeps consistent. The low beam region 2 has a plus power of positive power with respect to the high beam region 1, the value of the plus power being 2.00D. The wide-angle bifocal lens element is distributed on the rear surface of the lens. The back surface is the surface of the lens that is close to the side of the eye when worn after the lens is completely installed.
The wide-angle bifocal lens element provided by the embodiment has wide visual angles in the high beam area 1 and the low beam area 2, and the astigmatic areas are compressed and distributed in a belt shape, so that the image jump phenomenon of a common bifocal lens can be eliminated.
Example 3
The present embodiment provides a wide-angle bifocal lens element comprising a lens element body divided by a horizontal axis into a first lens element body and a second lens element body, the first lens element body being located above the second lens element body;
the first lens element body is a high beam area 1, the second lens element body is an astigmatism area and a low beam area 2, the astigmatism area is positioned on one side close to a horizontal axis, the astigmatism area comprises a first astigmatism area 31 and a second astigmatism area 32, the first astigmatism area 31 and the second astigmatism area 32 are symmetrically distributed by taking a vertical axis as a reference, the first astigmatism area 31 and the second astigmatism area 32 are respectively enclosed by an upper arc line and a lower arc line, and the upper arc line and the lower arc line respectively extend inwards from the edge of the second lens element body and intersect;
wherein the horizontal axis refers to a horizontal meridian passing through the center of the lens element body, the vertical axis refers to a vertical axis perpendicular to the horizontal axis, the downward arc faces the horizontal axis, and the upward arc faces opposite the downward arc.
The area of the astigmatism area accounts for 2/3 of the area of the second lens element body, the diopter value of the high beam area 1 is 5.00D, and the diopter of the high beam area is gradually decreased towards the edge of the lens element body by taking the position of the center of the lens element body vertically moving upwards by 5mm as the center according to the rule of aspheric change. The low beam region 2 has a positive addition to the high beam region 1, which has a value of 0.50D. The wide-angle bifocal lens element is distributed on the front surface of the lens. The front surface is the surface of the lens that faces away from the eye when worn after the lens is fully installed.
The wide-angle bifocal lens element provided by the embodiment has wide visual angle in both the high beam area 1 and the low beam area 2, and the astigmatic areas are compressed and distributed in a band shape, so that the image jump phenomenon of a common bifocal lens can be eliminated.
Example 4
The present embodiment provides a wide-angle bifocal lens element comprising a lens element body divided by a horizontal axis into a first lens element body and a second lens element body, the first lens element body being located above the second lens element body;
the first lens element body is a distance light zone 1, the second lens element body is an astigmatism zone and a near light zone 2, the astigmatism zone is positioned at one side close to the horizontal axis, the astigmatism zone comprises a first astigmatism zone 31 and a second astigmatism zone 32, the first astigmatism zone 31 and the second astigmatism zone 32 are symmetrically distributed by taking the vertical axis as a reference, the first astigmatism zone 31 and the second astigmatism zone 32 are respectively enclosed by an upper arc and a lower arc, and the upper arc and the lower arc respectively extend inwards from the edge of the second lens element body and intersect;
wherein the horizontal axis refers to a horizontal meridian passing through the center of the lens element body, the vertical axis refers to a vertical axis perpendicular to the horizontal axis, the downward arc faces the horizontal axis, and the upward arc faces opposite the downward arc.
The area of the astigmatism area accounts for 2/3 of the area of the second lens element body, the diopter of the high-beam area 1 is 5.00D, and the diopter of the high-beam area 1 is uniformly distributed in a spherical light mode. The low beam region 2 has a positive addition to the high beam region 1. The add power was 2.00D. The wide-angle bifocal lens element is distributed on the front surface of the lens. The front surface is the surface of the lens that is away from the eye when worn after it is installed.
The power distribution and astigmatism distribution curves were plotted for the wide-angle bifocal lens element, the results being shown in figures 2-3. From the power distribution curve of the wide-angle bifocal lens element body in fig. 2, it can be seen that the high beam zone 1 can cover the first lens element body, the field of vision is wide, and a rapid and complete transition from near 5.0D of the high beam zone 1 to the low beam zone 2 can be achieved over a distance of 4mm, and the low beam zone 2 has an add power of 2.00D with respect to the high beam zone 1 and has a wide field of vision. According to the astigmatism distribution curve of the wide-angle bifocal lens element body in fig. 3, it can be seen that the astigmatism of the lens element body in the central area of the transition from the high beam area 1 to the low beam area 2 is stabilized within 0.12D, thereby avoiding the occurrence of image jump and maintaining the continuity of the visual objects.
The applicant states that the above description is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present invention are within the protection scope and the disclosure scope of the present invention.
Claims (10)
1. A wide-angle bifocal lens element comprising a lens element body divided by a horizontal axis into a first lens element body and a second lens element body, the first lens element body being above the second lens element body;
the first lens element body is a high beam area, the second lens element body is an astigmatism area and a low beam area, the astigmatism area is positioned on one side close to the horizontal axis, the astigmatism area comprises a first astigmatism area and a second astigmatism area, the first astigmatism area and the second astigmatism area are symmetrically distributed by taking the vertical axis as a reference, the first astigmatism area and the second astigmatism area are respectively enclosed by an upper arc line and a lower arc line, and the upper arc line and the lower arc line respectively extend inwards from the edge of the second lens element body and intersect;
wherein the horizontal axis refers to a horizontal meridian passing through the center of the lens element body, the vertical axis refers to a vertical axis perpendicular to the horizontal axis, the downward arc faces the horizontal axis, and the upward arc faces opposite the downward arc.
2. A wide-angle bifocal lens element according to claim 1, wherein the area of the astigmatic region occupies 1/2-2/3 of the area of the second lens element body.
3. A wide angle bifocal lens element according to claim 1, wherein the distance zone has a diopter ranging from-20.00 to 15.00 diopters.
4. A wide angle bifocal lens element according to claim 3, wherein the diopter distribution of the distance zone remains consistent in a spherical manner.
5. A wide-angle bifocal lens element according to claim 3, wherein the diopter of the high-beam zone decreases toward the edge of the lens element body, according to the law of aspheric change, centering around the position where the center of the lens element body has moved vertically upward.
6. A wide-angle bifocal lens element according to claim 5, wherein the distance of vertical upward shift is 4-8mm.
7. A wide-angle bifocal lens element according to claim 1, wherein the low beam zone has a plus power of positive power relative to the high beam zone.
8. A wide-angle bifocal lens element according to claim 7, wherein the add power is in the range of 0.50-4.00D.
9. A wide-angle bifocal lens element according to claim 8, wherein the add power is in the range of 1.00-3.00D.
10. The wide angle bifocal lens element of claim 1, wherein the wide angle bifocal lens element is distributed on an anterior surface or a posterior surface of the lens;
the front surface is the surface of the lens which is far away from the eye when the lens is worn after being completely installed;
the back surface is the surface of the lens that is close to the side of the eye when worn after the lens is completely installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123039269.5U CN218601621U (en) | 2021-12-06 | 2021-12-06 | Wide-angle double-lens element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123039269.5U CN218601621U (en) | 2021-12-06 | 2021-12-06 | Wide-angle double-lens element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218601621U true CN218601621U (en) | 2023-03-10 |
Family
ID=85395643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123039269.5U Active CN218601621U (en) | 2021-12-06 | 2021-12-06 | Wide-angle double-lens element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218601621U (en) |
-
2021
- 2021-12-06 CN CN202123039269.5U patent/CN218601621U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2795395B1 (en) | Multi-focal optical lenses | |
| US5557348A (en) | Progressive power lens | |
| CN215494400U (en) | Myopia out-of-focus spectacle lens with superposed micro-lenses | |
| WO2010100528A1 (en) | Spectacle eyeglass for myopic child | |
| CN103792681A (en) | Contact lens with improved fitting characteristics | |
| CN215867415U (en) | Lens for correcting eyesight | |
| TW201333579A (en) | Multi-focal optical lenses | |
| CN210514834U (en) | Composite defocusing multi-focus polyurethane lens | |
| CN211293490U (en) | Corneal contact lens | |
| CN215264271U (en) | Lens capable of reducing side-center defocusing | |
| CN215678948U (en) | Out-of-focus spectacle lens suitable for teenager myopia control | |
| US8272734B2 (en) | Non-progressive multifocal lens with large near/intermediate area | |
| CN218601621U (en) | Wide-angle double-lens element | |
| CN214846106U (en) | Myopia correction lens and myopia correction glasses comprising same | |
| CA1244687A (en) | Contact lens | |
| CN201812098U (en) | Peripheral defocusing correction glasses with composite prisms | |
| JP3601724B2 (en) | Progressive focus lens | |
| CN110082932A (en) | Trifocal | |
| CN219417914U (en) | Partitioned gradual change multiple spot defocus type myopia prevention and control lens | |
| CN217639824U (en) | All-focus lens for delaying hyperopia development | |
| CN213482597U (en) | Bifocal composite peripheral out-of-focus myopia lens | |
| CN214252794U (en) | Progressive lens suitable for adolescents for myopia and defocusing around far zone | |
| CN215375983U (en) | Cornea moulding mirror capable of controlling myopia progression | |
| CN220543225U (en) | Ophthalmic defocusing lens capable of correcting amblyopia and frame glasses with ophthalmic defocusing lens | |
| CN215117039U (en) | Stepless out-of-focus lens and frame glasses |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |