CN100485432C - Lens module - Google Patents

Lens module Download PDF

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Publication number
CN100485432C
CN100485432C CNB2006101114768A CN200610111476A CN100485432C CN 100485432 C CN100485432 C CN 100485432C CN B2006101114768 A CNB2006101114768 A CN B2006101114768A CN 200610111476 A CN200610111476 A CN 200610111476A CN 100485432 C CN100485432 C CN 100485432C
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China
Prior art keywords
liquid
camera lens
height
piezoelectric element
lens module
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CNB2006101114768A
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Chinese (zh)
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CN101131458A (en
Inventor
陈彦光
李宜明
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Asustek Computer Inc
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Asustek Computer Inc
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Priority to CNB2006101114768A priority Critical patent/CN100485432C/en
Publication of CN101131458A publication Critical patent/CN101131458A/en
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Publication of CN100485432C publication Critical patent/CN100485432C/en
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Abstract

A lens die set includes a hydraulic pressure device, a moving piece and a lens. The hydraulic pressure device includes a connector and a piezoelectric element. The connector is filled with the liquid, which has the first end and second end, the radius of first end is longer than the second end. The piezoelectric element is set at the first end and covers with the first end liquid. The moving piece is set at the second end of connecting pipe and covers with the second end liquid. The lens is connected with the moving element; when the piezoelectric element drove by the voltage changes the length and makes a change to the height of the first end liquid, at the same time, the height of the second end liquid is changed to make the moving element move along with the liquid second end height and drive the lens move.

Description

The camera lens module
Technical field
The invention relates to a kind of camera lens module, and particularly relevant for a kind of camera lens module that utilizes hydraulic means.
Background technology
Along with the progress of science and technology, it is multi-functional that the electronic installation of single machine and single function energy develops into unit gradually, pursues demand easily to satisfy the consumer.
With the multifunctionality of mobile phone, present mobile phone not only provides communication function, and functions such as recreation, online, e-book and photograph more are provided, and wherein is subjected to popular liking deeply with the camera function that can catch timely picture especially.The camera function of mobile phone mainly is to be provided by the camera lens module that is installed in the mobile phone.In general, camera lens can be that the driving that is subjected to traditional type motor, piezoelectric element or voice coil motor (Voice Coil Motor) comes mobile zoom, so that image can clearly image in image-forming component.Wherein, use traditional type motor and voice coil motor to drive the mobile phone that camera lens moves, can obtain better image quality, but comparatively power consumption.Move though use piezoelectric element to drive camera lens, can reduce the power consumption of mobile phone, it is shorter that piezoelectric element drives the displacement of camera lens.
For example, if the length of piezoelectric element is one millimeter, it is activated voltage and when being out of shape, only can allows camera lens move one micron, and can't reach the camera lens zoom fully so that image definition image in the requirement of image-forming component.In addition, move if use long piezoelectric element to drive camera lens, piezoelectric element is the embrittlement because of its material behavior easily again.
Summary of the invention
The purpose of this invention is to provide a kind of camera lens module, it can make electronic installation have low power consumption rate, and image can clearly image in image-forming component again.
For reaching above-mentioned or other purposes, the present invention proposes a kind of camera lens module, and it comprises a hydraulic means, a moving member and a camera lens.Hydraulic means comprises an a connecting pipe and a piezoelectric element, and wherein communicating pipe fills liquid, and has one first end and one second end communicating pipe, and the radius of first end is greater than the radius of second end.Piezoelectric element is disposed at first end, and covers the liquid that is positioned at first end, and moving member is disposed at second end of communicating pipe, and covers the liquid that is positioned at second end.Camera lens is connected in moving member, and when piezoelectric element is subjected to driven and changes its length, piezoelectric element can make the height of the liquid that is positioned at first end change, the height that be positioned at the liquid of second end this moment also can and then change, and then make moving member along with the height change of liquid in second end moves, and the drive camera lens moves.
In one embodiment of this invention, the material of above-mentioned piezoelectric element comprises quartz, tourmaline, Luo De salt, zinc paste, polymkeric substance, stupalith or compound substance.
In one embodiment of this invention, when the height of the liquid that is positioned at first end is subjected to the length elongation of piezoelectric element and is squeezed, when the height of liquid was reduced relatively, the height that is positioned at the liquid of second end can raise relatively.
In one embodiment of this invention, when the height of the liquid that is positioned at first end raise relatively because of the contraction in length of piezoelectric element, the height that is positioned at the liquid of second end can reduce relatively.
The present invention is used in hydraulic means in the camera lens module, and when piezoelectric element is subjected to driven and changes its length, communicating pipe the liquid height at two ends just can and then change.Because the radius of first end of communicating pipe is greater than the radius of second end, when the liquid that is positioned at first end is subjected to the extruding of piezoelectric element and when highly descending, the height that is positioned at the liquid of second end can rise, and the distance that the distance that rises descends is many.Therefore, use camera lens module of the present invention, can be by allowing a spot of length variations of piezoelectric element, and allow camera lens move long distance, and then reach and allow image can clearly image in the purpose of image-forming component.
For above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, an embodiment cited below particularly, and cooperate appended graphicly, be described in detail below.
Description of drawings
Fig. 1 is the synoptic diagram of camera lens module of the present invention.
Fig. 2 drives the synoptic diagram that camera lens moves zoom for hydraulic means.
100: the camera lens module
110: hydraulic means
112: communicating pipe
112a: first end
112b: second end
114: piezoelectric element
120: moving member
130: camera lens
D, d: distance
R1, r2: radius
Embodiment
Fig. 1 is the synoptic diagram of camera lens module of the present invention.Please refer to Fig. 1, camera lens module 100 comprises a hydraulic means 110, a moving member 120 and a camera lens 130.Hydraulic means 110 comprises an a connecting pipe 112 and a piezoelectric element 114, and wherein communicating pipe 112 fills liquid, and this liquid can be water, oil or other liquid.Have one first end 112a and one second end 112b communicating pipe 112, wherein the radius r 1 of the first end 112a is greater than the radius r 2 of the second end 112b.When being positioned over communicating pipe 112 under the normal pressure, the height that liquid is positioned at the first end 112a is identical with the height that is positioned at the second end 112b.Piezoelectric element 114 is disposed at the first end 112a, and covers the liquid that is positioned at the first end 112a.In the present embodiment, the material of piezoelectric element 114 can be quartz, tourmaline, Luo De salt, zinc paste, polymkeric substance, stupalith or compound substance.
Hold above-mentionedly, moving member 120 is disposed at the second end 112b of communicating pipe 112, and covers the liquid that is positioned at the second end 112b, and camera lens 130 is connected in moving member 120, and camera lens 130 is suitable for moving along with moving member 120, to reach the purpose of zoom.
Fig. 2 drives the synoptic diagram that camera lens moves zoom for hydraulic means.Please also refer to Fig. 1 and Fig. 2, when piezoelectric element 114 was subjected to driven, its electric coupling polar moment can elongate along with electric field action, so piezoelectric element 114 can be along with direction of an electric field changes its length.At this moment, piezoelectric element 114 can push the liquid that is positioned at the first end 112a, the height of liquid is changed, and the height that is positioned at the liquid of the second end 112b also can and then change, and then moving member 120 can be moved along with the height change of liquid in the second end 112b, and drive camera lens 130 moves zoom.
For example, when piezoelectric element 114 is subjected to driven and when elongated, piezoelectric element 114 can extruding be positioned at the liquid of the first end 112a, makes the height of the liquid that is positioned at the first end 112a distance D that descends.At the same time, the height that is positioned at the liquid of the second end 112b can rise one apart from d.It should be noted that, because the radius r 1 of the first end 112a is greater than the radius r 2 of the second end 112b, and the liquid that is positioned at the first end 112a is squeezed and the liquid volume that descends is identical with the liquid volume that the liquid that is positioned at the second end 112b rises, and the climb d that therefore is positioned at the liquid of the second end 112b can be greater than the dropping distance D of the liquid that is positioned at the first end 112a.Therefore, use the electronic installation of camera lens module 100 of the present invention, only need apply suitable driving voltage and make piezoelectric element 114 a spot of distortion, just can allow camera lens 130 obtain more displacement and come zoom, and then image in image-forming component on (scheming not show) with allowing image definition.
When 114 distortion of driven piezoelectric element no longer were provided, piezoelectric element 114 can slowly revert to shape originally, and moving member 120 also can change down along with the height of the liquid that is positioned at the second end 112b and descend this moment, allowed camera lens 130 return back to position originally.
In sum, in camera lens module of the present invention, when piezoelectric element is subjected to driven and changes its length, communicating pipe the liquid height at two ends just can and then change.Because the radius of first end of communicating pipe is greater than the radius of second end, when the liquid that is positioned at first end is subjected to the distortion extruding of piezoelectric element and when highly descending, the height that is positioned at the liquid of second end can rise and pass moving member and move, and make camera lens along with moving member moves zoom, wherein the distance that rises of the camera lens dropping distance that is positioned at the liquid of first end comes manyly.Therefore, use camera lens module of the present invention, can be by allowing a spot of length variations of piezoelectric element, and allow camera lens move long distance, and then reach and allow image can clearly image in the purpose of image-forming component.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.

Claims (4)

1, a kind of camera lens module is characterized in that comprising:
One hydraulic means comprises:
A connecting pipe fills a liquid, has one first end and one second end this communicating pipe, and wherein the radius of this first end is greater than this second end;
One piezoelectric element is disposed at this first end, and covers this liquid;
One moving member is disposed at this second end of this communicating pipe, and covers this liquid; And
One camera lens, connect this moving member, wherein this piezoelectric element is subjected to a driven and changes its length, and this liquid is changed simultaneously at the height of this first end and this second end, and this moving member is moved along with this liquid drives this camera lens in the height change of this second end.
2, camera lens module according to claim 1 is characterized in that the material of wherein said piezoelectric element comprises quartz, tourmaline, Luo De salt, zinc paste, polymkeric substance, stupalith or compound substance.
3, camera lens module according to claim 1, the height that it is characterized in that wherein being positioned at this liquid of this first end reduces relatively, and the height that is positioned at this liquid of this second end raises relatively.
4, camera lens module according to claim 1, the height that it is characterized in that wherein being positioned at this liquid of this first end raises relatively, and the height that is positioned at this liquid of this second end reduces relatively.
CNB2006101114768A 2006-08-22 2006-08-22 Lens module Active CN100485432C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2006101114768A CN100485432C (en) 2006-08-22 2006-08-22 Lens module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2006101114768A CN100485432C (en) 2006-08-22 2006-08-22 Lens module

Publications (2)

Publication Number Publication Date
CN101131458A CN101131458A (en) 2008-02-27
CN100485432C true CN100485432C (en) 2009-05-06

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108318518A (en) * 2018-01-31 2018-07-24 华侨大学 A kind of detection device for expansion type steel structure fire-proof coating heat-proof quality
CN111781789A (en) * 2020-08-07 2020-10-16 深圳市当智科技有限公司 Hydraulic focusing system and projection equipment

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