CN211043852U - Liquid progressive addition lens - Google Patents
Liquid progressive addition lens Download PDFInfo
- Publication number
- CN211043852U CN211043852U CN201921653517.5U CN201921653517U CN211043852U CN 211043852 U CN211043852 U CN 211043852U CN 201921653517 U CN201921653517 U CN 201921653517U CN 211043852 U CN211043852 U CN 211043852U
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- film
- lens
- liquid
- constraint
- progressive addition
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Abstract
The utility model belongs to the technical field of liquid zoom lens technique and specifically relates to a liquid multifocal lens that advances gradually, including first film, second film, backup pad, capillary pipeline and topping up device, be provided with between first film and the second film and hold the chamber, hold the chamber and pass through capillary pipeline and topping up device and connect, first film, second film and backup pad are fixed through restraint border. The utility model discloses a liquid lens that founds then can realize about a lens that the region has diopter distribution between two focuses and realize the smooth transition of progressive, the diopter accessible of lens is adjusted the lens and is held liquid charging volume in the chamber to adjust liquid pressure's size and adjust, to the old person say that this lens can adapt to more complicated external environment.
Description
Technical Field
The utility model belongs to the technical field of liquid varifocal lens technique and specifically relates to a liquid multifocal lens that advances gradually.
Background
At present, most of zoom lenses popular in the market are mechanical zoom lenses formed by combining solid lenses with different focal lengths under certain conditions, the components of the zoom lenses are complex and expensive as a whole, and liquid lenses are simple in structure and can realize continuous zooming. In addition, for the old people with myopia, along with the increase of the age, the eyes gradually lose the adjusting capability of the focal length, so that the old people cannot clearly see the help of the myopia glasses at a distance, and the old people can gradually blur the objects at a near place and need a far vision mirror to adjust the objects. Thus, the elderly may use progressive addition lenses under certain environmental conditions, where the user may see distant objects through the upper half of the lens and near objects through the lower half of the lens. However, the central point of the distance vision zone and the near vision zone of the progressive multifocal lens is a fixed diopter value, and if the use environment changes and the value needs to be adjusted, the lens needs to be ground again, which is a complicated process. In addition, in the research field of liquid lenses, most of the zooming forms are to adjust the focal length change of the focal point on a single axis, or only one focal point can zoom, and the zooming form is single, so that the continuous and simultaneous zooming of a plurality of focal points cannot be realized, and the application range of the liquid lens is limited.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior liquid progressive addition lens technology, the utility model provides a liquid progressive addition lens.
The utility model provides a technical scheme that its technical problem adopted is: a liquid progressive multi-focus lens comprises a first film, a second film, a supporting plate, a capillary pipeline and a liquid filling device, wherein a containing cavity is arranged between the first film and the second film, the containing cavity is connected with the liquid filling device through the capillary pipeline, and the first film, the second film and the supporting plate are fixed through a constraint boundary.
According to another embodiment of the present invention, the constraint boundary is a full boundary constraint or a two-segment boundary constraint or a three-segment boundary constraint.
According to another embodiment of the present invention, the first film is an elastic film with a round surface and a non-uniform thickness distribution, and the first film material is polydimethylsiloxane.
According to another embodiment of the present invention, the second film is an elastic film with a circular surface and uniform thickness distribution, and the second film is made of polydimethylsiloxane.
According to another embodiment of the present invention, the transparent support plate is made of polymethyl methacrylate.
The utility model has the advantages that: the utility model discloses liquid fills into the lens through capillary tube and holds the chamber after, lens film surface produces and warp under liquid pressure, because one side in the liquid lens adopts non-uniform thickness film, non-uniform thickness film can realize asymmetric deformation in region about under certain boundary constraint condition, the liquid lens of founding then can realize about a lens that the region has diopter distribution between two focuses and realizes the smooth transition of gradual progress, the diopter accessible of lens is adjusted the lens and is held liquid charging volume in the chamber in addition, thereby adjust liquid pressure's size, to the old person explain this lens can adapt to more complicated external environment.
Drawings
The present invention will be further explained with reference to the drawings and examples.
FIG. 1 is an exploded view of a liquid progressive addition lens under the constraint of three film boundaries;
fig. 2 is a general structural view of a liquid progressive addition lens under a constraint of three film boundaries;
FIG. 3 is a three-segment boundary constraint diagram of a first film in a liquid progressive addition lens;
FIG. 4 is a cross-sectional dimension plot of a first film of a liquid progressive addition lens under three-segment boundary constraints;
FIG. 5 is a diagram of a calculated power distribution of a liquid progressive addition lens after a first film deforms under a three-segment boundary constraint and a surface pressure of 104 Pa;
FIG. 6 is a diagram of the first film two segment boundary constraint in a liquid progressive addition lens;
FIG. 7 is a cross-sectional dimension plot of a first film in a liquid progressive addition lens under two segment boundary constraints;
fig. 8 is a schematic diagram of a calculated refractive power distribution of a liquid progressive addition lens after a first film is deformed under a two-stage boundary constraint condition and a surface pressure of 130 Pa.
In the figure, 1, a first film, 2, a second film, 3, a constraint boundary, 4, a support plate, 5, a capillary pipeline, 6, a cavity, 7 and a liquid filling device.
Detailed Description
As shown in fig. 1 and 2, a liquid progressive addition lens includes a first film 1, a second film 2, a support plate 4, a capillary tube 5 and a liquid filling device 7, wherein a cavity 6 is disposed between the first film 1 and the second film 2, the cavity 6 is connected to the liquid filling device 7 through the capillary tube 5, and the first film 1, the second film 2 and the support plate 4 are fixed by a constraint boundary 3.
The constraint boundary 3 is full boundary constraint or two-section boundary constraint or three-section boundary constraint, the first film 1 is an elastic film with a circular and non-uniform thickness distribution on the surface, the first film 1 is made of polydimethylsiloxane, the second film 2 is an elastic film with a circular and uniform thickness distribution on the surface, the second film 2 is made of polydimethylsiloxane, and the transparent support plate 4 is made of polymethyl methacrylate.
As shown in fig. 3 and 4, the first film 1 is an elastic film with a circular surface and non-uniform thickness distribution, under the constraint of three-section boundaries, the diameter of the first film 1 is 30 mm, the first film 1 is divided into a first part, a second part and a third part from top to bottom, the length of the first part is 15 mm, the thickness of the upper end of the first part is 0.56 mm, the thickness of the lower end of the first part is 1 mm, the length of the second part is 7.5 mm, the thickness of the upper end of the second part is 1 mm, the thickness of the lower end of the second part is 0.61 mm, the length of the third part is 7.5 mm, the thickness of the upper end of the third part is 0.61 mm, and the thickness of the lower end of the third part is 0.71 mm.
As shown in fig. 6 and 7, the first film 1 is an elastic film with a circular surface and non-uniform thickness distribution, under the constraint of two boundaries, the diameter of the first film 1 is 30 mm, the first film 1 is divided into a first part and a second part from top to bottom, the length of the first part is 15 mm, the thickness of the upper end of the first part is 0.66 mm, the thickness of the lower end of the first part is 1 mm, the length of the second part is 15 mm, the thickness of the upper end of the second part is 1 mm, and the thickness of the lower end of the second part is 0.48 mm.
The working principle is as follows: after liquid in a liquid filling device 7 is filled into a lens containing cavity 6 through a capillary tube 5, the surface of a PDMS film 1 with non-uniform thickness on the outer surface of a lens generates deformation under the action of liquid pressure, because one side of the liquid lens adopts the thin film with non-uniform thickness, the thin film with non-uniform thickness generates asymmetric deformation in the upper area and the lower area of the lower surface under the condition of three-section boundary constraint 3, the constructed liquid lens can realize that the upper area and the lower area of the lens have two focuses and the diopter distribution of the central points of the two areas realizes progressive smooth transition, and in addition, the diopter of the lens can be adjusted by adjusting the liquid filling amount in the lens containing cavity, so.
Fig. 5 is a schematic diagram of diopter distribution calculated after a first film in a liquid progressive addition lens deforms under the constraint condition of three-stage boundary and when the surface pressure is 104Pa, fig. 8 is a schematic diagram of diopter distribution calculated after the first film in the liquid progressive addition lens deforms under the constraint condition of two-stage boundary and when the surface pressure is 130Pa, it is seen that the upper and lower regions generate asymmetric deformation, the constructed liquid lens can realize that the upper and lower regions of one lens have two focuses and the diopter distribution of the central points of the two regions realizes progressive smooth transition, and besides, the diopter of the lens can be adjusted by adjusting the liquid filling amount in the lens cavity, so that the liquid pressure is adjusted.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (5)
1. A liquid progressive multi-focus lens is characterized by comprising a first film (1), a second film (2), a supporting plate (4), a capillary pipeline (5) and a liquid filling device (7), wherein a containing cavity (6) is arranged between the first film (1) and the second film (2), the containing cavity (6) is connected with the liquid filling device (7) through the capillary pipeline (5), and the first film (1), the second film (2) and the supporting plate (4) are fixed through a constraint boundary (3).
2. Liquid progressive addition lens according to claim 1, characterized in that said constraint boundary (3) is a full boundary constraint or a two-segment boundary constraint or a three-segment boundary constraint.
3. The liquid progressive addition lens according to claim 1, wherein the first film (1) is an elastic film with a circular surface and non-uniform thickness distribution, and the material of the first film (1) is polydimethylsiloxane.
4. The liquid progressive addition lens according to claim 1, wherein the second film (2) is an elastic film with a circular surface and uniform thickness distribution, and the material of the second film (2) is polydimethylsiloxane.
5. Liquid progressive addition lens according to claim 1, characterized in that said support plate (4) is a polymethylmethacrylate material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921653517.5U CN211043852U (en) | 2019-09-30 | 2019-09-30 | Liquid progressive addition lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921653517.5U CN211043852U (en) | 2019-09-30 | 2019-09-30 | Liquid progressive addition lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211043852U true CN211043852U (en) | 2020-07-17 |
Family
ID=71536607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921653517.5U Expired - Fee Related CN211043852U (en) | 2019-09-30 | 2019-09-30 | Liquid progressive addition lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211043852U (en) |
-
2019
- 2019-09-30 CN CN201921653517.5U patent/CN211043852U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200717 Termination date: 20210930 |