CN202256729U - Liquid zooming lens - Google Patents
Liquid zooming lens Download PDFInfo
- Publication number
- CN202256729U CN202256729U CN2011204086893U CN201120408689U CN202256729U CN 202256729 U CN202256729 U CN 202256729U CN 2011204086893 U CN2011204086893 U CN 2011204086893U CN 201120408689 U CN201120408689 U CN 201120408689U CN 202256729 U CN202256729 U CN 202256729U
- Authority
- CN
- China
- Prior art keywords
- lower cover
- liquid
- outer tube
- magnification lens
- inner sleeve
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a liquid zooming lens, which comprises a screw-in device, an upper cover plate located above the screw-in device and a lower cover plate located below the screw-in device. The upper cover plate and the lower cover plate are both made of transparent materials. The screw-in device is formed by an upper inner sleeve and a lower outer sleeve which are connected. An inner hole of the outer sleeve is a stepped hole with a big top and a small bottom, a transparent elastic thin film is disposed at the step position of the stepped hole, and a sealing pressing ring is installed on the inner side of the lower portion of the outer sleeve. The transparent elastic thin film is pressed tight on the outer sleeve through the sealing pressing ring, a chamber is formed among the transparent elastic thin film, the outer sleeve and the lower cover plate, and liquid is filled in the chamber. The liquid zooming lens is simple in structure, small in volume, small in mass, stable in optical axis, continuous in zooming, quick in response, high in accuracy, convenient to operate and easy to process.
Description
Technical field
The utility model belongs to the micro-optic technical field, relates to a kind of liquid zoom lens, especially relates to a kind of liquid continuous magnification lens.
Background technology
Traditional lens generally are made by glass or plastic material, and the radius through eyeglass, thickness, aspheric surface parameter etc. are regulated with aberration correction, satisfy certain demand.But, along with science and technology and produce, the further needs of life, zooming range is little, the strict conventional lenses of drive motor has been on the verge of the dimension limit that can reach, can not satisfy the demand of industry development, application receives very big restriction.In order to realize the microminiaturization of zoom lens, some novel zoom micro lens technologies have been proposed at present both at home and abroad, liquid zoom lens is exactly wherein a kind of.Liquid lens is to be processed by liquid, the focusing principle of imitation human lens, thus cause that through controlling liquid generation change in shape variations in refractive index realizes focusing on and zoom.Compare with traditional lens, liquid zoom lens has that volume is little, the life-span is long, cost is low, energy consumption is little, easy to operate, advantage such as response speed is fast.Liquid zoom lens has broad application prospects in systems such as mobile phone, digital camera, medical science endoscope, telescope and microscope.
Liquid lens is made up of liquid chamber and elastic film; Because liquid has flowability; The surface tension of utilizing mechanical external force extruding liquid or changing between liquid and liquid chamber sidewall changes the surface configuration of liquid; The radius-of-curvature meeting respective change of the elastic film of liquid surface, thus varifocal liquid lens formed.Existing liquid zoom lens mainly is divided into two kinds, and a kind of is the mechanically driver type liquid lens, another kind of electric moistening type liquid lens.Mechanically driver type liquid lens lens arrangement is complicated, not compact, control accuracy and reliability are very limited; The electric moistening type liquid lens is made complicated, and technology difficulty is high, and driving voltage is bigger, has exceeded the human safety voltage of 36V.
Summary of the invention
For addressing the above problem, the purpose of the utility model provides a kind of simple in structure, easy to operate, liquid continuous magnification lens that precision is high.
For realizing the foregoing invention purpose, the utility model adopts following technical scheme:
A kind of liquid continuous magnification lens, it comprises the precession device, be positioned at the upper cover plate above the precession device and be positioned at the lower cover below the precession device, upper cover plate, lower cover all adopt transparent material; The precession device is connected to form by the inner sleeve on top and the outer tube of bottom; The outer tube endoporus is up big and down small shoulder hole; Shoulder hole step place is provided with transparent elastic film, and the outer tube lower inside is equipped with seal joint, and transparent elastic film is pressed on the outer tube by seal joint; Form a chamber between transparent elastic film, outer tube and the lower cover, be filled with liquid in the chamber.
In inner sleeve, lower cover passes through glue sleeve bottom outside through glue for described liquid continuous magnification lens, its upper cover plate.
Described liquid continuous magnification lens, its lower cover bottom is equipped with pressure ring.
Described liquid continuous magnification lens, its inner sleeve lower end is hemispherical projections.
A kind of liquid continuous magnification lens; It comprises the precession device, be positioned at the upper cover plate above the precession device and be positioned at the lower cover below the precession device; Upper cover plate, lower cover all adopt transparent material, and the precession device is connected to form by the inner sleeve on top and the outer tube of bottom, and the inner sleeve lower surface is provided with transparent elastic film; Form a chamber between transparent elastic film, outer tube and the lower cover, be filled with liquid in the chamber.
On inner sleeve top, lower cover passes through glue sleeve bottom outside through glue for described liquid continuous magnification lens, its upper cover plate.
Described liquid continuous magnification lens, its upper cover plate, lower cover are optical glass or organic glass.
Described liquid continuous magnification lens, its inner sleeve outer wall is provided with screw thread, and outer sleeve inner wall is provided with screw thread, and the two connects through threaded engagement.
Described liquid continuous magnification lens, its inner sleeve top have a flange along the outside protrusion of last sleeve pipe radially-outer surface, and flange is provided with anti-skidding line.
Described liquid continuous magnification lens, the pressure ring of its inner sleeve, outer tube, seal joint and lower cover bottom adopts metal, pottery or organic glass.
Described liquid continuous magnification lens, its liquid adopts water, phenixin, glycerine, terebinthina or olive oil.
The film that described liquid continuous magnification lens, its transparent elastic film adopt ETFE film, dimethyl silicone polymer, PTEF film, TPU, latex film or SYLGARD 184 to make.
Described liquid continuous magnification lens, the cover external diameter of pipe is b in the setting, internal diameter is r; Last sleeve pipe advances downwards and is that highly h, last sleeve pipe advance height to be compressed for h makes the liquid edge downwards, and the middle body of liquid raises into the segment shape; The segment height is d, and liquid refractivity is n, and air refraction is n
0, the focal length of lens is f ', focal length of lens f ' with the liquid volume variation relation is:
Wherein,
.
Owing to adopt aforesaid technical scheme, the utlity model has following superiority:
This liquid continuous magnification lens; It is through the precession up and down of last sleeve pipe; Extruding or extract bottom chamber liquid under the constant situation of total liquid volume, makes the transparent elastic film rat or the formation different curvature radius of subsiding through liquid jack-up or contraction; To change the liquid lens focal length, realize continuous vari-focus; Simple in structure, volume is little, and quality is little, optical axis stable; Continuous vari-focus, response is rapid, and degree of accuracy is high, and is easy to operate; Be easy to processing, with low cost, digital camera head be can be widely used in, system, medical science endoscope, notebook computer camera and supervisory system etc. peeped outdoors.
Description of drawings
Fig. 1 is the structural representation of one of the utility model liquid continuous magnification lens embodiment;
Fig. 2 a is the focal length variations synoptic diagram of the first kind of state of lens among Fig. 1;
Fig. 2 b is the focal length variations synoptic diagram of the second kind of state of lens among Fig. 1;
Fig. 3 is that the focal length of the lens among Fig. 1 calculates synoptic diagram;
Fig. 4 is two the structural representation of the utility model liquid continuous magnification lens embodiment;
Among the figure: the 1-upper cover plate; The 2-outer tube; The 3-pressure ring; The 4-inner sleeve; The 5-elastic film; The 6-seal joint; 7-liquid; The 8-lower cover.
Embodiment
Through accompanying drawing and embodiment the technical scheme of the utility model is done further explain below.
Shown in Fig. 1,2a, 2b; A kind of version for the utility model; This liquid continuous magnification lens; It comprises the precession device, be positioned at the upper cover plate 1 above the precession device and be positioned at the lower cover 8 below the precession device, and upper cover plate, lower cover all adopt optical glass or organic glass transparent material; The precession device is connected to form by the inner sleeve 4 on top and the outer tube 2 of bottom; The inner sleeve outer wall is provided with screw thread, and outer sleeve inner wall is provided with screw thread, and the two connects through threaded engagement; The outer tube endoporus is up big and down small shoulder hole; Shoulder hole step place is provided with transparent elastic film 5, and outer tube 2 lower inside are equipped with seal joint 6, and transparent elastic film 5 is pressed on the outer tube 2 by seal joint 6; Form a chamber between transparent elastic film 5, outer tube 2 and the lower cover 8, be filled with liquid 7 in the chamber; In inner sleeve, lower cover passes through glue sleeve bottom outside to upper cover plate through glue, and lower cover 8 bottoms are equipped with pressure ring 3.Because transparent elastic film is pressed on the outer tube by seal joint, lower cover is pressed on the outer tube by pressure ring, and therefore, whole liquid continuous magnification lens waterproof is tight, assembles simple and convenient, workable.
Above-mentioned inner sleeve lower end is hemispherical projections, prevents to damage when the inner sleeve lower end from contacting with transparent elastic film film.
One flange along the outside protrusion of last sleeve pipe radially-outer surface is arranged at above-mentioned inner sleeve top, and flange is provided with anti-skidding line, person's manual operation easy to use.
The slit can be left in the inboard, lower end of above-mentioned inner sleeve, in order to avoid pushing transparent elastic film, makes it damage.
Described liquid continuous magnification lens, the pressure ring 3 of its inner sleeve 4, outer tube 2, seal joint 6 and lower cover 8 bottoms adopts metal, pottery or organic glass.
Described liquid continuous magnification lens, the film that its transparent elastic film 5 adopts ETFE film, dimethyl silicone polymer, PTEF film, TPU, latex film or SYLGARD 184 to make.
Specify the focal length variations of the utility model liquid continuous magnification lens below in conjunction with Fig. 2 a, 2b.
Shown in Fig. 2 a, when last sleeve pipe is not having downward precession, during the extrusion chamber indoor liquid, whole liquid level keeps the plane, and this moment, the focal length of lens be infinity.
Shown in Fig. 2 b, when the downward precession of last sleeve pipe, during the extrusion chamber indoor liquid; The lower end hemispherical projections of last sleeve pipe is pushed transparent elastic film, occupies the liquid volume of rims of the lens, and the liquid of extruding margin is to center flow; Thereby heave elastic film, make it certain radius-of-curvature, at this moment; Lens are equivalent to convex lens, and variation has taken place focal length.
As shown in Figure 3, described liquid continuous magnification lens, the cover external diameter of pipe is b in the setting, and internal diameter is r, and liquid refractivity is n, and air refraction is n
0=1, the focal length of lens is f; During the focal length infinity state of lens, liquid surface and transparent elastic film are the level of state, and incident ray is parallel with emergent ray; The rotation inner sleeve makes it downward propelling, and advancing highly is h, and the liquid edge is compressed volume and does
Evenly the middle body of liquid raises into the segment shape because the liquid edge is stressed, and the volume V of segment height d does
By first equality of formula (2), be the cubic equation of d, can in the hope of
Second equality by formula (2) can do in the hope of the segment radius of curvature R
To a plano-convex lens, its focal distance f ' do
Wherein R is the radius-of-curvature of convex surface, and n is the refractive index of lens, and following formula supposition lens place air.Can obtain the focal distance f of liquid lens ' do by (4), (5) two formula with liquid volume V variation relation
With getting in (1), (3) formula substitution (6) formula, when last sleeve pipe precession highly is h, the focal distance f of lens ' do
Wherein
As shown in Figure 4; Another kind of version for the utility model; This liquid continuous magnification lens, it comprises the precession device, be positioned at the upper cover plate 1 above the precession device and be positioned at the lower cover 8 below the precession device, upper cover plate, lower cover all adopt optical glass or organic glass transparent material; The precession device is connected to form by the inner sleeve 4 on top and the outer tube 2 of bottom; The inner sleeve outer wall is provided with screw thread; Outer sleeve inner wall is provided with screw thread, and the two connects through threaded engagement, and inner sleeve 4 lower surfaces are provided with transparent elastic film 5; Form a chamber between transparent elastic film 5, outer tube 2 and the lower cover 8, be filled with liquid 7 in the chamber; On inner sleeve 4 tops, lower cover 8 passes through glue sleeve pipe 2 bottoms outside to upper cover plate 1 through glue; One flange along the outside protrusion of inner sleeve radially-outer surface is arranged at inner sleeve top, and flange is provided with anti-skidding line, person's manual operation easy to use.
The focal length variations of lens described in Fig. 4, focal length calculate and calculate identical with focal length variations, the focal length of above-mentioned Fig. 2 a, 2b, lens described in 3.
Inner sleeve, the outer tube of lens can be selected in metal, pottery or organic glass described in the pressure ring of the inner sleeve of lens described in Fig. 1, outer tube, seal joint and lower cover bottom, Fig. 4.
In the above-mentioned liquid continuous magnification lens, said liquid can be selected in water, phenixin, glycerine, terebinthina or olive oil.
In the above-mentioned liquid continuous magnification lens, said transparent elastic film can be selected in the film that ETFE film, dimethyl silicone polymer, PTEF film, TPU, latex film or SYLGARD 184 make.
Described liquid continuous magnification lens, its precession device also can adopt other version, is connected through bonding way with outer tube like inner sleeve, perhaps integrated version.Above-mentioned form all falls within the protection domain of the utility model.
Claims (10)
1. liquid continuous magnification lens is characterized in that: it comprises the precession device, be positioned at the upper cover plate (1) above the precession device and be positioned at the lower cover (8) below the precession device, and upper cover plate, lower cover all adopt transparent material; The precession device is connected to form by the inner sleeve (4) on top and the outer tube (2) of bottom; The outer tube endoporus is up big and down small shoulder hole; Shoulder hole step place is provided with transparent elastic film (5), and the outer tube lower inside is equipped with seal joint (6), and transparent elastic film is pressed on the outer tube by seal joint; Form a chamber between transparent elastic film, outer tube and the lower cover, be filled with liquid (7) in the chamber.
2. liquid continuous magnification lens according to claim 1 is characterized in that: in inner sleeve (4), lower cover (8) passes through glue sleeve pipe (2) bottom outside to its upper cover plate (1) through glue.
3. liquid continuous magnification lens according to claim 1 is characterized in that: its lower cover (8) bottom is equipped with pressure ring (3).
4. liquid continuous magnification lens; It is characterized in that: it comprises the precession device, be positioned at the upper cover plate (1) above the precession device and be positioned at the lower cover (8) below the precession device; Upper cover plate, lower cover all adopt transparent material, and the precession device is connected to form by the inner sleeve (4) on top and the outer tube (2) of bottom, and the inner sleeve lower surface is provided with transparent elastic film (5); Form a chamber between transparent elastic film, outer tube and the lower cover, be filled with liquid (7) in the chamber.
5. liquid continuous magnification lens according to claim 4 is characterized in that: on inner sleeve (4) top, lower cover (8) passes through glue sleeve pipe (2) bottom outside to its upper cover plate (1) through glue.
6. according to claim 1 or 4 described liquid continuous magnification lens, it is characterized in that: its inner sleeve (4) outer wall is provided with screw thread, and outer tube (2) inwall is provided with screw thread, and the two connects through threaded engagement.
7. according to claim 1 or 4 described liquid continuous magnification lens, it is characterized in that: a flange along the outside protrusion of last sleeve pipe radially-outer surface is arranged at its inner sleeve top, and flange is provided with anti-skidding line.
8. according to claim 1 or 4 described liquid continuous magnification lens, it is characterized in that: the pressure ring of its inner sleeve, outer tube, seal joint and lower cover bottom adopts metal, pottery or organic glass.
9. according to claim 1 or 4 described liquid continuous magnification lens, it is characterized in that: its liquid adopts water, phenixin, glycerine, terebinthina or olive oil.
10. according to claim 1 or 4 described liquid continuous magnification lens, it is characterized in that: the film that its transparent elastic film adopts ETFE film, dimethyl silicone polymer, PTEF film, TPU, latex film or SYLGARD 184 to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204086893U CN202256729U (en) | 2011-10-25 | 2011-10-25 | Liquid zooming lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204086893U CN202256729U (en) | 2011-10-25 | 2011-10-25 | Liquid zooming lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202256729U true CN202256729U (en) | 2012-05-30 |
Family
ID=46117948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204086893U Expired - Fee Related CN202256729U (en) | 2011-10-25 | 2011-10-25 | Liquid zooming lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202256729U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103076643A (en) * | 2011-10-25 | 2013-05-01 | 洛阳师范学院 | Liquid continuous zooming lens |
| CN103529543A (en) * | 2013-10-16 | 2014-01-22 | 北京航空航天大学 | Automatic microscope focusing method |
| CN105891943A (en) * | 2016-05-25 | 2016-08-24 | 哈尔滨工程大学 | Dual-core optical fiber-based liquid dropping suspension type focus adjustable optical tweezers |
| CN106154538A (en) * | 2016-08-10 | 2016-11-23 | 华南师范大学 | A kind of method filling ink in electric moistening display |
| CN110691189A (en) * | 2019-08-19 | 2020-01-14 | 中国科学院西安光学精密机械研究所 | Continuous zooming camera control system |
-
2011
- 2011-10-25 CN CN2011204086893U patent/CN202256729U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103076643A (en) * | 2011-10-25 | 2013-05-01 | 洛阳师范学院 | Liquid continuous zooming lens |
| CN103076643B (en) * | 2011-10-25 | 2016-11-02 | 洛阳师范学院 | A kind of liquid zooming lens |
| CN103529543A (en) * | 2013-10-16 | 2014-01-22 | 北京航空航天大学 | Automatic microscope focusing method |
| CN105891943A (en) * | 2016-05-25 | 2016-08-24 | 哈尔滨工程大学 | Dual-core optical fiber-based liquid dropping suspension type focus adjustable optical tweezers |
| CN106154538A (en) * | 2016-08-10 | 2016-11-23 | 华南师范大学 | A kind of method filling ink in electric moistening display |
| CN106154538B (en) * | 2016-08-10 | 2019-02-15 | 华南师范大学 | The method of ink is filled in a kind of electric moistening display |
| CN110691189A (en) * | 2019-08-19 | 2020-01-14 | 中国科学院西安光学精密机械研究所 | Continuous zooming camera control system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202256729U (en) | Liquid zooming lens | |
| CN101950078B (en) | Varifocal double-liquid lens based on inverse piezoelectric effect | |
| US7142369B2 (en) | Variable focus liquid lens | |
| CN100374900C (en) | Variable shape lens | |
| CN101464558B (en) | Electric tuning optical attenuator | |
| CN103076643A (en) | Liquid continuous zooming lens | |
| CN106990459B (en) | One kind flexible adjustable lens with multi-layer structure and variable-power optical system | |
| CN112731572B (en) | Dielectric elastomer liquid lens based on transparent conductive liquid | |
| CN102879900A (en) | Zoom micro lens based on piezoelectric inverse effect | |
| CN110441903A (en) | Zoom optics element | |
| CN102466825A (en) | Electrowetting zoom lens based on ion liquid | |
| WO2010034145A1 (en) | Mechanically actuated hybrid diffractive-refractive variable-focus liquid lens | |
| CN113376720A (en) | Variable focus liquid lens with complex internal cavity surface | |
| CN102385078A (en) | Remote-controlled continuous zoom lens with liquid | |
| CN109031651B (en) | Electrowetting liquid lens with high focal power | |
| CN102135643A (en) | Pressure-control adjustable optical attenuator | |
| CN100495078C (en) | Focal-distance and view-field-adjusting liquid microlens and its production | |
| CN102338895B (en) | Bifocus micro lens with aspheric surface and adjustable focal length | |
| CN113267887A (en) | Flexible zoom lens and zooming method | |
| CN200956058Y (en) | Automatic zooming positive-negative adjustable gradual-change flexible optical lens | |
| CN102103231B (en) | Electric tuning optical attenuator | |
| CN201331592Y (en) | Magnetic control variable-focus liquid lens | |
| CN102135642A (en) | Variable optical attenuator | |
| CN102129099A (en) | Handheld variable optical attenuator | |
| CN102162914B (en) | Voltage-controlled variable optical attenuator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20131025 |