CN210666237U - Improved ring focal lens - Google Patents
Improved ring focal lens Download PDFInfo
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- CN210666237U CN210666237U CN201921592747.5U CN201921592747U CN210666237U CN 210666237 U CN210666237 U CN 210666237U CN 201921592747 U CN201921592747 U CN 201921592747U CN 210666237 U CN210666237 U CN 210666237U
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Abstract
The utility model provides an improved generation ring burnt lens: the improved type ring focal lens comprises a central area and a plurality of annular belts which are sequentially and continuously distributed from the central area to the outside; the main optical axis of the annulus and the main optical axis of the central region are coplanar; the main optical axis of the ring belt and the main optical axis of the central area are parallel to each other; the improved ring focal lens is provided with an effective area for cutting the vision training lens; the intersection point of the main optical axis of the annular belt and the improved type ring focal lens is located in the effective area, and the central point is also located in the effective area. Compared with the traditional annular focal lens, the proportion of the effective area of the improved annular focal lens for cutting the vision training lens to the whole lens is larger, the diopter change range is also larger, and the vision training lens cut by the improved annular focal lens has small influence on a user by aberration in the using process and good training effect.
Description
Technical Field
The utility model relates to a lens field especially relates to an improved generation ring burnt lens.
Background
The more popular and the increased study pressure of the existing electronic equipment, the more and more time is spent by teenagers in reading electronic screens and books every day, and the eye pressure of the teenagers is large and the teenagers are easy to be tired due to the high-intensity eye use every day, so that a series of visual problems can be brought in the past.
In response to this situation, various vision training devices have been designed to help teenagers relax their eyes and relieve eye strain. The current mainstream method is to apply the zoom lens to the wearable device, and when a user wears the wearable device, the lens is moved to make the eye correspond to the lens area with different diopter, so that the lens in the eye of the wearer can be adjusted to achieve the purpose of relaxing and exercising.
The present zoom lens adopts a circular ring focal lens, and then the ring focal lens is cut to form a lens for vision training, wherein the present circular ring focal lens has a plurality of annular bands, and the annular bands are in an annular shape concentric with the annular lens. The proportion of the effective area of the vision training lens cut out by the lens to the whole lens is small, and great waste is caused to the lens material.
In addition, in practical applications, all lenses cannot be imaged absolutely accurately according to optical theory, and the farther away from the main optical axis, i.e., the worse the edge image, which is called aberration in optics. Therefore, when a person looks at an object through the lens, the person looks at the object through the main optical axis of the lens with the best effect and the clearest effect, and if the person looks at the object through the edge of the lens, the object image can be deformed, so that the person feels dizzy.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the problem of the effective area that adopts traditional ring focus lens cutting vision training lens account for whole ring focus lens's proportion less, extravagant material and the vision training lens that cuts into make user's training effect poor because of having the aberration in the use is solved in order to solve. The utility model provides an improved generation ring burnt lens solves above-mentioned problem.
The utility model provides a technical scheme that its technical problem adopted is: an improved toroidal focal lens comprising:
the improved type ring focal lens comprises a central area and a plurality of annular belts which are sequentially and continuously distributed from the central area to the outside; both surfaces of the zone are part of a complete sphere, each zone having one diopter; both surfaces of the central region are part of a complete sphere;
the main optical axis of the annulus and the main optical axis of the central region are coplanar; the main optical axis of the ring belt and the main optical axis of the central area are parallel to each other;
the main optical axis of the central area intersects with the improved type focusing lens at a central point; the central point is arranged close to the edge of the improved ring focal lens;
the improved ring focal lens is provided with an effective area for cutting the vision training lens; the intersection point of the main optical axis of the annular belt and the improved type ring focal lens is located in the effective area, and the central point is also located in the effective area.
Preferably, the effective area is long, and a plurality of the annular belts are sequentially distributed along the length direction of the effective area;
the intersection points of the main optical axis of the annular belt and the improved type focusing lens are distributed along the length direction of the effective area in sequence.
Preferably, the power of the zones closer to the central zone is greater, the power of the central zone being greater than the power of the innermost zone.
Preferably, the diopter of the zone closer to the central region is smaller, and the diopter of the central region is smaller than the diopter of the innermost zone.
Preferably, the absolute value of the difference in diopter between each two adjacent zones is equal; the absolute value of the difference between the diopter of the central zone and the diopter of the innermost zone is equal to the absolute value of the difference between the diopter of each two adjacent zones.
Preferably, the absolute value of the difference in diopter between each two adjacent zones is 0.1 to 0.3D.
Preferably, the diopter of the central area is less than or equal to 0D, and the diopter of the zone is less than 0D.
The beneficial effects of the utility model are that, compare in traditional ring burnt lens, the effective area of this kind of improved generation ring burnt lens's cutting visual training lens accounts for the proportion of whole lens bigger, and diopter variation range is also bigger to the aberration of the visual training lens that the lens was cut with this kind of improved generation ring burnt lens in the use is little, training is effectual to user's influence.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural view of a conventional ring focus lens.
Fig. 2 is a schematic structural diagram of an embodiment of an improved toroidal focal lens of the present invention.
Fig. 3 is a schematic structural diagram of another embodiment of an improved multifocal lens of the present invention.
In the figure, 1, an improved ring focal lens, 2, a central area, 3, an annular zone, 4 and an effective area.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used only for convenience in describing and simplifying the present invention, 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," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 2-3, the utility model provides an improved generation ring focal lens piece, include:
the improved type focusing lens 1 comprises a central area 2 and a plurality of annular belts 3 which are distributed continuously from the central area 2 to the outside. Both surfaces of the zone 3 are part of a complete sphere, each zone 3 having one diopter. Both surfaces of the central area 2 are part of a complete sphere.
The main optical axis of the ring zone 3 and the main optical axis of the central area 2 are coplanar, and the main optical axis of the ring zone 3 and the main optical axis of the central area 2 are parallel to each other.
The main optical axis of the central area 2 intersects the improved toroidal focal lens 1 at a central point. The center point is located near the edge of the modified toroidal focal lens 1.
The improved type focusing lens 1 is provided with an effective area 4 for cutting the vision training lens. The intersection point of the main optical axis of the ring belt 3 and the improved ring focal lens 1 is positioned in the effective area 4, and the central point is also positioned in the effective area 4.
The eyesight training lens adopts the cutting of ring focal lens to form, and when using, the eyesight training lens is arranged in eyes the place ahead, makes the different clitellum 3 on the eyes corresponds the eyesight training lens through removing the eyesight training lens, in order to see through the eyesight training lens and see clearly the place ahead object, the shrink of eyes can active adjustment crystalline lens with relax, reach and relax eyes, temper the purpose of crystalline lens.
As shown in fig. 1, a central area 2 of a conventional ring focal lens is provided at the center of a circular lens, and its ring zone 3 is formed in a ring shape concentric with the circular lens. Because the ring belts 3 on the two sides of the center of the circle of the traditional ring focal lens are symmetrical and have the same change range, most of the effective area 4 of the vision training lens cut by the traditional ring focal lens can only be positioned on one side of the center of the circle of the circular lens. This results in a small diopter change range in the effective area 4 and a low utilization of the entire ring-focus lens, resulting in material waste.
The improved ring-focus lens and the traditional ring-focus lens are made of lenses with the same size, the area of the effective area 4 of the improved ring-focus lens for cutting the vision training lens is larger than that of the effective area 4 of the traditional ring-focus lens, the area of the effective area 4 is enlarged, the number of tracks for cutting the ring belt 3 of the effective area 4 of the vision training lens is increased, and the diopter change range of the effective area 4 of the improved ring-focus lens for cutting the vision training lens is enlarged. Therefore, the improved type ring focal lens sheet saves more materials and has better performance.
In addition, in practical applications, all lenses cannot be imaged absolutely accurately according to optical theory, and the farther away from the main optical axis, i.e., the worse the edge image, which is called aberration in optics. Therefore, when a person looks at an object through the lens, the person looks at the object through the main optical axis of the lens with the best effect and the clearest effect, and if the person looks at the object through the edge of the lens, the object image can be deformed, so that the person feels dizzy. The vision training lenses are often used in cooperation with wearable devices (such as VR glasses), the wearable devices can drive the vision training lenses to move linearly, and in the process, the positions of human eyes are unchanged. If the main optical axis of the circumferential band 3, which is located in front of the user's line of sight, cannot pass right through the eyes during the movement of the vision training lenses, the user experiences an uncomfortable feeling when looking at an object through the circumferential band 3. In the improved zoom lens in the embodiment, the main optical axis of the ring zone 3 and the main optical axis of the central area 2 are coplanar, and the main optical axis of the ring zone 3 and the main optical axis of the central area 2 are parallel to each other. When the vision training lens cut by the improved ring focal lens is used, the vision training lens moves along a straight line, so that the main optical axis of the ring belt 3 positioned in different positions sequentially passes through human eyes, the vision of a user is clear, and the training effect is good.
In a specific embodiment, the effective area 4 is elongated, and a plurality of endless belts 3 are sequentially arranged along the length direction of the effective area 4. The intersection points of the main optical axis of the ring belt 3 and the improved type focusing lens 1 are distributed along the length direction of the effective area 4 in sequence. When in use, the vision training lens is placed in front of eyes of a person and is driven to move along the length direction of the vision training lens, so that the main optical axes of different ring belts 3 sequentially pass through the eyes of the person.
According to a further embodiment, the power of the zone 3 closer to the central zone 2 is greater, the power of the central zone 2 being greater than the power of the innermost zone 3.
According to a further embodiment, the diopter of the zone 3 closer to the central zone 2 is smaller, the diopter of the central zone 2 being smaller than the diopter of the innermost zone 3.
According to a further embodiment, the absolute value of the difference in diopters between each two adjacent zones 3 is equal. The absolute value of the difference in diopter of the central zone 2 from the innermost zone 3 is equal to the absolute value of the difference in diopter between each two adjacent zones 3. The absolute value of the difference in diopter between each two adjacent zones 3 is 0.2D.
According to a further embodiment, the diopter of the central zone 2 is equal to 0D and the diopter of the zone 3 is less than 0D (i.e. diopters are negative). The lens is suitable for myopia people.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic representation of the term does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (7)
1. An improved ring focal lens, characterized in that:
the improved type ring focal lens comprises a central area and a plurality of annular belts which are sequentially and continuously distributed from the central area to the outside; both surfaces of the zone are part of a complete sphere, each zone having one diopter; both surfaces of the central region are part of a complete sphere;
the main optical axis of the annulus and the main optical axis of the central region are coplanar; the main optical axis of the ring belt and the main optical axis of the central area are parallel to each other;
the main optical axis of the central area intersects with the improved type focusing lens at a central point; the central point is arranged close to the edge of the improved ring focal lens;
the improved ring focal lens is provided with an effective area for cutting the vision training lens; the intersection point of the main optical axis of the annular belt and the improved type ring focal lens is located in the effective area, and the central point is also located in the effective area.
2. An improved toroidal focal lens as claimed in claim 1, wherein:
the effective area is long, and a plurality of annular belts are sequentially distributed along the length direction of the effective area;
the intersection points of the main optical axis of the annular belt and the improved type focusing lens are distributed along the length direction of the effective area in sequence.
3. An improved toroidal focal lens as claimed in claim 2, wherein:
the greater the diopter of the zones closer to the central zone, the greater the diopter of the central zone is than the diopter of the innermost zone.
4. An improved toroidal focal lens as claimed in claim 2, wherein:
the diopter of the zones closer to the central zone is smaller, the diopter of the central zone being smaller than the diopter of the innermost zone.
5. An improved toroidal focal lens as claimed in claim 3 or 4, wherein:
the absolute value of the difference in diopter between every two adjacent zones is equal; the absolute value of the difference between the diopter of the central zone and the diopter of the innermost zone is equal to the absolute value of the difference between the diopter of each two adjacent zones.
6. An improved toroidal focal lens as claimed in claim 5, wherein:
the absolute value of the difference of diopters between every two adjacent annular bands is 0.1-0.3D.
7. An improved toroidal focal lens as claimed in claim 6, wherein:
the diopter of the central area is less than or equal to 0D, and the diopter of the annular belt is less than 0D.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921592747.5U CN210666237U (en) | 2019-09-24 | 2019-09-24 | Improved ring focal lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921592747.5U CN210666237U (en) | 2019-09-24 | 2019-09-24 | Improved ring focal lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210666237U true CN210666237U (en) | 2020-06-02 |
Family
ID=70819523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921592747.5U Expired - Fee Related CN210666237U (en) | 2019-09-24 | 2019-09-24 | Improved ring focal lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210666237U (en) |
-
2019
- 2019-09-24 CN CN201921592747.5U patent/CN210666237U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200602 Termination date: 20210924 |
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| CF01 | Termination of patent right due to non-payment of annual fee |