CN111812755A - Magnetofluidic liquid zoom lens - Google Patents
Magnetofluidic liquid zoom lens Download PDFInfo
- Publication number
- CN111812755A CN111812755A CN202010852971.4A CN202010852971A CN111812755A CN 111812755 A CN111812755 A CN 111812755A CN 202010852971 A CN202010852971 A CN 202010852971A CN 111812755 A CN111812755 A CN 111812755A
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- China
- Prior art keywords
- cavity
- transparent
- electromagnet
- membrane
- liquid
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- 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.)
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/12—Fluid-filled or evacuated lenses
- G02B3/14—Fluid-filled or evacuated lenses of variable focal length
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/004—Optical devices or arrangements for the control of light using movable or deformable optical elements based on a displacement or a deformation of a fluid
Abstract
The liquid lens is similar to the crystalline lens of human eyes, can realize quick zooming and is the direction of a future lens. The invention provides a magnetofluid liquid zoom lens which has the advantages of simple zoom form, few elements, low cost, quick zoom, capability of being convex or concave, high precision and convenience for mass production.
Description
Technical Field
The invention relates to a liquid zoom lens designed by utilizing acting force between magnetic fluid and a magnet, which is mainly used in the fields of optical code scanning lenses, mobile phone optical zooming, medical endoscopes and the like needing rapid zooming.
Background
The liquid lens is similar to the crystalline lens of human eyes, can realize quick zooming and is the direction of a future lens. The invention provides a magnetofluid liquid zoom lens which has the advantages of simple zoom form, few elements, low cost, fast zoom, high precision and convenience for mass production.
Disclosure of Invention
The invention provides a simple magnetic fluid liquid zoom lens which mainly comprises a first cavity, a first elastic membrane, a first electromagnet, a first transparent plate, a transparent zoom membrane, a second cavity, a second transparent plate, a third cavity, a second electromagnet, a second elastic membrane, a supporting plate, a hole and a shell.
One end of the first elastic membrane is arranged on the shell, the other end of the first elastic membrane is arranged on the supporting plate or the first transparent plate, one end of the second elastic membrane is arranged on the shell, the other end of the second elastic membrane is arranged on the supporting plate or the second transparent plate, the first elastic membrane, the second elastic membrane and the shell form a first cavity, and magnetic fluid is filled in the first cavity.
The first elastic film, the first transparent plate and the transparent zooming film form a second cavity, and the second cavity is filled with a transparent liquid or not filled with any liquid.
The second elastic film, the second transparent plate and the transparent zooming film form a third cavity, and the third cavity is filled with another transparent liquid or not filled with any liquid.
The first elastic membrane, the second elastic membrane, the first electromagnet and the second electromagnet are in a ring shape or other shapes.
The transparent zooming film is arranged on the supporting plate, a hole is formed in the supporting plate, and the magnetic fluid filled in the first cavity passes through the hole.
The first electromagnet is arranged on one side of the first elastic membrane, the first electromagnet attracts the magnetic fluid filled in the first cavity after being electrified so that the first elastic membrane protrudes to one side of the first electromagnet, the second elastic membrane is sunken, and therefore the liquid pressure difference between the second cavity and the third cavity is changed, the transparent zooming membrane is sunken, and the more current or voltage passing through the first electromagnet is, the more obvious the transparent zooming membrane is sunken.
The second electromagnet is arranged on one side of the second elastic membrane, the second electromagnet attracts the magnetic fluid filled in the first cavity after being electrified so that the second elastic membrane protrudes towards one side of the second electromagnet, the first elastic membrane is sunken, and therefore the liquid pressure difference between the second cavity and the third cavity is changed, the transparent zooming membrane protrudes upwards, and the more current or voltage the second electromagnet passes, the more the transparent zooming membrane protrudes.
The first electromagnet and the second electromagnet are mounted on the housing or on a support plate mounted on the housing.
The first electromagnet is mounted on the first transparent plate and the second electromagnet is mounted on the second transparent plate.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings showing the embodiments will be described below.
Fig. 1 is a front view of a cross-sectional structure of the present invention.
In the figure: a first chamber 1; a first elastic film 2; a first electromagnet 3; a first transparent plate 4; a transparent zoom film 5; a second cavity 6; a second transparent plate 7; a third cavity 8; a second electromagnet 9; a second elastic film 10; a support plate 11; a hole 12; a housing 13.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
one end of the first elastic membrane 2 is arranged on the shell 13 and the other end is arranged on the support plate 11 or the first transparent plate 4, one end of the second elastic membrane 10 is arranged on the shell 13 and the other end is arranged on the support plate 11 or the second transparent plate 7, the first elastic membrane 2, the second elastic membrane 10 and the shell 13 form a first cavity 1, and the first cavity 1 is filled with magnetic fluid.
The first elastic membrane 2, the first transparent plate 4 and the transparent zoom membrane 5 form a second cavity 6, and the second cavity 6 is filled with a transparent liquid or not filled with any liquid.
The second elastic film 10, the second transparent plate 7 and the transparent zooming film 5 form a third cavity 8, and the third cavity 8 is filled with another transparent liquid or not filled with any liquid.
The first and second elastic membranes 2 and 10 and the first and second electromagnets 3 and 9 are in the shape of a ring or other shapes.
The transparent zoom film 5 is mounted on a support plate 11, a hole 12 is formed on the support plate 11, and a magnetic fluid filled in the first cavity 1 passes through the hole 12.
The first electromagnet 3 is installed on one side of the first elastic membrane 2, after the first electromagnet 3 is electrified, the first cavity 1 is attracted to be filled with magnetic fluid, so that the first elastic membrane 2 protrudes towards one side of the first electromagnet 3, the second elastic membrane 10 is sunken, the liquid pressure difference between the second cavity 6 and the third cavity 8 is caused to change, the transparent zooming membrane 5 is sunken downwards to cause the focal length to change, and the more current or voltage the first electromagnet 3 passes, the more obvious the transparent zooming membrane 5 is sunken.
The second electromagnet 9 is installed on one side of the second elastic membrane 10, after the second electromagnet 9 is powered on, the magnetic fluid filled in the first cavity 1 is attracted, so that the second elastic membrane 10 protrudes towards one side of the second electromagnet 9, the first elastic membrane 2 is sunken, the liquid pressure difference between the second cavity 6 and the third cavity 8 is caused to change, the transparent zooming membrane 5 protrudes upwards, the focal length is caused to change, and the protruding of the transparent zooming membrane 5 is more obvious when the current or voltage passing through the second electromagnet 9 is larger.
The invention realizes zooming by attracting the magnetic fluid through the electromagnet, and has the characteristics of few elements, large zooming range, low cost, quick zooming, high precision and the like.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The magnetofluid type liquid zoom lens mainly comprises: first cavity 1, first elastic membrane 2, first electromagnet 3, first transparent plate 4, transparent zoom membrane 5, second cavity 6, second transparent plate 7, third cavity 8, second electromagnet 9, second elastic membrane 10, backup pad 11, hole 12, shell 13, its characterized in that: the first electromagnet 3 or the second electromagnet 9 is electrified to attract the magnetic fluid, so that the first elastic membrane 2 or the second elastic membrane 10 wrapping the magnetic fluid is deformed, the pressure difference between the upper part and the lower part of the transparent zooming membrane 5 is changed, and the transparent zooming membrane 5 is raised or sunken to realize zooming.
2. A magnetofluidic liquid zoom lens of claim 1, wherein: one end of the first elastic membrane 2 is arranged on the shell 13 and the other end is arranged on the support plate 11 or the first transparent plate 4, one end of the second elastic membrane 10 is arranged on the shell 13 and the other end is arranged on the support plate 11 or the second transparent plate 7, the first elastic membrane 2, the second elastic membrane 10 and the shell 13 form a first cavity 1, and the first cavity 1 is filled with magnetic fluid.
3. A magnetofluidic liquid zoom lens of claim 1, wherein: the first elastic membrane 2, the first transparent plate 4 and the transparent zoom membrane 5 form a second cavity 6, and the second cavity 6 is filled with a transparent liquid or not filled with any liquid.
4. A magnetofluidic liquid zoom lens of claim 1, wherein: the second elastic film 10, the second transparent plate 7 and the transparent zooming film 5 form a third cavity 8, and the third cavity 8 is filled with another transparent liquid or not filled with any liquid.
5. A magnetofluidic liquid zoom lens of claim 1, wherein: the first and second elastic membranes 2 and 10 and the first and second electromagnets 3 and 9 are in the shape of a ring or other shapes.
6. A magnetofluidic liquid zoom lens of claim 1, wherein: the transparent zoom film 5 is mounted on a support plate 11, a hole 12 is formed on the support plate 11, and a magnetic fluid filled in the first cavity 1 passes through the hole 12.
7. A magnetofluidic liquid zoom lens of claim 1, wherein: the first electromagnet 3 is installed on one side of the first elastic membrane 2, after the first electromagnet 3 is electrified, the first cavity 1 is attracted to be filled with magnetic fluid, so that the first elastic membrane 2 protrudes towards one side of the first electromagnet 3, the second elastic membrane 10 is sunken, the liquid pressure difference between the second cavity 6 and the third cavity 8 is caused to change, the transparent zooming membrane 5 is sunken downwards, and the more current or voltage the first electromagnet 3 passes, the more obvious the transparent zooming membrane 5 is sunken.
8. A magnetofluidic liquid zoom lens of claim 1, wherein: the second electromagnet 9 is installed on one side of the second elastic membrane 10, after the second electromagnet 9 is powered on, the magnetic fluid filled in the first cavity 1 is attracted, so that the second elastic membrane 10 protrudes towards one side of the second electromagnet 9, the first elastic membrane 2 is sunken, so that the liquid pressure difference between the second cavity 6 and the third cavity 8 is changed, the transparent zooming membrane 5 protrudes upwards, and the protruding of the transparent zooming membrane 5 is more obvious when the current or voltage passing through the second electromagnet 9 is larger.
9. A magnetofluidic liquid zoom lens of claim 1, wherein: the first electromagnet 3 and the second electromagnet 9 are mounted on a housing 13 or on a support plate 11, the support plate 11 being mounted on the housing 13.
10. A magnetofluidic liquid zoom lens of claim 1, wherein: the first electromagnet 3 is mounted on the first transparent plate 4 and the second electromagnet 9 is mounted on the second transparent plate 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010852971.4A CN111812755A (en) | 2020-08-22 | 2020-08-22 | Magnetofluidic liquid zoom lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010852971.4A CN111812755A (en) | 2020-08-22 | 2020-08-22 | Magnetofluidic liquid zoom lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111812755A true CN111812755A (en) | 2020-10-23 |
Family
ID=72860589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010852971.4A Pending CN111812755A (en) | 2020-08-22 | 2020-08-22 | Magnetofluidic liquid zoom lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111812755A (en) |
-
2020
- 2020-08-22 CN CN202010852971.4A patent/CN111812755A/en active Pending
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