CN100592132C - Lens module group - Google Patents
Lens module group Download PDFInfo
- Publication number
- CN100592132C CN100592132C CN 200610156998 CN200610156998A CN100592132C CN 100592132 C CN100592132 C CN 100592132C CN 200610156998 CN200610156998 CN 200610156998 CN 200610156998 A CN200610156998 A CN 200610156998A CN 100592132 C CN100592132 C CN 100592132C
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- China
- Prior art keywords
- lens module
- driving section
- camera lens
- lens barrel
- electromagnet
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Abstract
The present invention provides a lens module, comprising a lens barrel with a lens arranged inside and at least one focusing mechanism , wherein, the focusing mechanism comprises a permanently magnetic transmission part fixedly connected with the lens barrel, a fixed part and at least one electromagnet; two ends of the transmission part along the optical axis direction of the lens module are bothelastically connected with the fixed part through an elastic body; the electromagnet is used to provide magnetic force for driving the transmission part and the lens barrel to move together along theoptical axis direction of the lens module. As the focusing mechanism of the lens module has few component parts, simple in structure and easy to realize miniaturization, therefore, the volume and production cost of the whole lens module can be reduced as much as possible.
Description
Technical field
The present invention relates to the camera technique field, relate in particular to a kind of camera lens module.
Background technology
Along with the development of camera technique, the camera module is widely used in the camera head of various uses, and combining of camera module and various portable electron devices such as mobile phone, video camera, computer etc. obtains numerous consumers' favor especially.
The camera module generally includes a CD-ROM drive motor, at least one camera lens module and a photo-sensitive cell that is oppositely arranged with described camera lens module by drive motor.Described camera lens module can comprise one or more eyeglasses, and described eyeglass and photo-sensitive cell are oppositely arranged, and the central point of photo-sensitive cell is positioned on the optical axis of these one or more eyeglasses.During focusing,, seek the focusing position (position of finding a view) of a tool optimum resolution with drive motor lens group and photo-sensitive cell relative displacement.During zoom, with the distance between the eyeglass in the CD-ROM drive motor moving lens group, or when a plurality of lens group, the distance between the moving lens group, thus reach the purpose of zoom.
Yet CD-ROM drive motor often takies bigger space, and cost is expensive, causes and utilizes the camera lens module and the camera module volume of drive motor focusing bigger, can't satisfy compact demand, and cost is bigger.
Summary of the invention
In view of this, be necessary to provide a kind of have smaller size smaller and lower-cost camera lens module.
A kind of camera lens module, it comprises lens barrel and at least one focus adjusting mechanism of establishing eyeglass in one.Described focus adjusting mechanism comprises that one has permanent magnetism and the driving section of fixedlying connected with described lens barrel, a fixed part and at least one electromagnet, and described fixed part is a rectangle frame, and the width of its width and driving section is suitable.Described driving section all is connected on the relative two ends of described fixed part by elastomeric resilient along the two ends on the optical axis direction of described camera lens module, and described electromagnet is used to provide magnetic force to drive described driving section and lens barrel together moves along the optical axis direction of described camera lens module.
Described camera lens module drives lens barrel by the magnetic force between electromagnet and the driving section and moves along optical axis direction, thereby the camera lens module is focused, its whole focus adjusting mechanism building block is few, simple in structure, realize miniaturization easily, thereby can reduce the volume and the production cost of whole camera lens module as far as possible.
Description of drawings
Fig. 1 is the part decomposing schematic representation of a kind of camera lens module of providing of the embodiment of the invention.
Fig. 2 is the synoptic diagram after the camera lens module among Fig. 1 of the present invention is assembled.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
See also Fig. 1 and Fig. 2, the embodiment of the invention provides a kind of camera lens module 100, and this camera lens module 100 comprises lens barrel 10 and at least one focus adjusting mechanism 20 of establishing eyeglass in one.
Described focus adjusting mechanism 20 comprises a fixed part 21, driving section 22 and at least one electromagnet 23.Described driving section 22 has permanent magnetism and fixedlys connected with lens barrel 10, it is elastically connected on the fixed part 21 by elastic body 24 respectively along the two ends on the optical axis direction, thereby makes driving section 22 to move on the optical axis direction that is parallel to camera lens module 100 along with stretching of elastic body 24.Described electromagnet 23 is used to provide a magnetic field, with moving of control driving section 22.In the present embodiment, described camera lens module 100 have two identical along lens barrel 10 peripheral symmetrically arranged focus adjusting mechanisms 20, simultaneously to lens barrel 10 effects, make that lens barrel 10 is stressed even by described two identical focus adjusting mechanisms 20, avoid it in moving process, to depart from optical axis direction.
Described fixed part 21 is fixed on the microscope base (figure does not show).In the present embodiment, described fixed part 21 is specially a rectangle frame, and the width of its width and driving section 22 is suitable, so that the moving direction of control driving section 22 avoids driving section 22 to the Width skew that is parallel to fixed part 21.
Described elastic body 24 can adopt elastic components such as spring or shell fragment, in the present embodiment, the described elastic body 24 concrete shell fragments that adopt, preferably, described shell fragment along the thickness of its flexible direction less than width perpendicular to its flexible plane, with moving of control driving section 22, driving section 22 is moved as far as possible along the flexible direction of shell fragment.Be appreciated that present embodiment also can adopt the guide pillar that is used to control eyeglass or lens barrel moving direction in the conventional lenses module to control moving of driving section 22.
Fixedlying connected with lens barrel 10 in described driving section 22, moves along the optical axis direction that is parallel to camera lens module 100 together thereby can drive lens barrel 10.Described driving section 22 can be realized by methods such as splicing, welding or riveted joints with fixedlying connected of lens barrel 10, in the present embodiment, described driving section 22 has hole 221, has projection 11 on the lens barrel 10, by will finishing fixedlying connected of driving section 22 and lens barrel 10 in described projection 11 patchholes 221.Described projection 11 and hole 221 can be set to one or more according to actual conditions, and described hole 221 specifically can be through hole or blind hole.Described driving section 22 can be on a permanent magnet or its and fixes a permanent magnet.In the present embodiment, described driving section 22 places high-intensity magnetic field to magnetize then, thereby makes driving section 22 have magnetic by at its surface coated one deck magnetic material.But described magnetic material chosen from Fe, cobalt, nickel or its alloy.Described magnetic material is applied on the described driving section 22 by lithographic plate impression or plating.
Described electromagnet 23 is used to drive driving section 22 and moves along the direction that is parallel to camera lens module 100 optical axises, by changing through direction of current on the electromagnet 23 and big or small moving direction and the displacement that can regulate driving section 22 respectively.In the present embodiment, described each focus adjusting mechanism 20 has two electromagnet 23, is located at the both sides of driving section 22 respectively.Carry out in the focusing process at camera lens module 100, make described two electromagnet 23 have identical polarity simultaneously near an end of driving section 22, thereby make driving section 22 1 ends be subjected to the attractive force of an electromagnet 23, the other end is subjected to the repulsive force of an electromagnet 23, thereby can increase the magnetic force that driving section 22 is subjected on same direction.Be appreciated that described two electromagnet 23 also can be located at described fixed part 21 two ends.
Described camera lens module drives lens barrel by the magnetic force between electromagnet and the driving section and moves along optical axis direction, thereby the camera lens module is focused, its whole focus adjusting mechanism building block is few, simple in structure, realize miniaturization easily, thereby can reduce the volume and the production cost of whole camera lens module as far as possible.
Be understandable that, for the person of ordinary skill of the art, can make other various corresponding changes and distortion by technical conceive according to the present invention, and all these change the protection domain that all should belong to claim of the present invention with distortion.
Claims (9)
1. camera lens module, it comprises lens barrel and at least one focus adjusting mechanism of establishing eyeglass in one, it is characterized in that, described focus adjusting mechanism comprises a driving section that has permanent magnetism and fixedly connected with described lens barrel, a fixed part and at least one electromagnet, described fixed part is a rectangle frame, the width of its width and driving section is suitable, described driving section all is connected on the relative two ends of described fixed part by elastomeric resilient along the two ends on the optical axis direction of described camera lens module, and described electromagnet is used to provide magnetic force to drive described driving section and lens barrel together moves along the optical axis direction of described camera lens module.
2. camera lens module as claimed in claim 1 is characterized in that, described camera lens module has a plurality of focus adjusting mechanisms, and described a plurality of focus adjusting mechanism is symmetrical arranged along the lens barrel periphery.
3. camera lens module as claimed in claim 1 is characterized in that, described elastic body is spring or shell fragment.
4. camera lens module as claimed in claim 3 is characterized in that, described shell fragment along the thickness of its flexible direction less than width perpendicular to its flexible plane.
5. camera lens module as claimed in claim 1 is characterized in that, the method for fixedlying connected with lens barrel in described driving section comprises splicing, welding or riveted joint.
6. camera lens module as claimed in claim 1 is characterized in that described driving section has the hole, has projection on the lens barrel, by described projection is inserted in the hole, so that fixedly connected with lens barrel in the driving section.
7. camera lens module as claimed in claim 1 is characterized in that, described driving section places high-intensity magnetic field to magnetize by at its surface coated one deck magnetic material then, makes the driving section have magnetic.
8. camera lens module as claimed in claim 7 is characterized in that, described magnetic material is applied on the driving section by lithographic plate impression or plating.
9. camera lens module as claimed in claim 1 is characterized in that, described each focus adjusting mechanism has two electromagnet, and these two electromagnet are located at both sides, described driving section respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610156998 CN100592132C (en) | 2006-11-22 | 2006-11-22 | Lens module group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610156998 CN100592132C (en) | 2006-11-22 | 2006-11-22 | Lens module group |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101191889A CN101191889A (en) | 2008-06-04 |
| CN100592132C true CN100592132C (en) | 2010-02-24 |
Family
ID=39486981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610156998 Expired - Fee Related CN100592132C (en) | 2006-11-22 | 2006-11-22 | Lens module group |
Country Status (1)
| Country | Link |
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| CN (1) | CN100592132C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101614857B (en) * | 2008-06-24 | 2012-07-18 | 鸿富锦精密工业（深圳）有限公司 | Focusing lens module |
| CN102768391A (en) * | 2011-05-04 | 2012-11-07 | 亚洲光学股份有限公司 | Lens frame module capable of controlling resolving power of camera lens |
| CN103501402B (en) | 2013-08-13 | 2017-10-13 | 格科微电子（上海）有限公司 | A kind of control method and camera module for camera module |
| CN104181668A (en) * | 2014-08-15 | 2014-12-03 | 苏州佳世达光电有限公司 | Lens module and projector |
| CN110113522B (en) * | 2019-07-03 | 2019-11-15 | 北京小米移动软件有限公司 | Camera lens offset assembly and capture apparatus |
| CN112714237B (en) | 2019-10-24 | 2023-03-24 | 北京小米移动软件有限公司 | Terminal device, lens adjusting method and readable storage medium |
| CN112198623A (en) * | 2020-09-30 | 2021-01-08 | 深圳大学 | Preparation method of variable-focus micro-lens set and variable-focus micro-lens set |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062808A (en) * | 1990-11-30 | 1992-07-15 | 因太金属株式会社 | Make the method and apparatus of permanent magnet and be used for rubber mold at the action of a magnetic field compacted under |
| CN1465996A (en) * | 2002-07-05 | 2004-01-07 | 思考电机（上海）有限公司 | Lens driving device |
| JP2005195912A (en) * | 2004-01-08 | 2005-07-21 | Sankyo Seiki Mfg Co Ltd | Lens-driving device |
| CN1786808A (en) * | 2004-12-11 | 2006-06-14 | 鸿富锦精密工业（深圳）有限公司 | Optical auto-focusing apparatus |
-
2006
- 2006-11-22 CN CN 200610156998 patent/CN100592132C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062808A (en) * | 1990-11-30 | 1992-07-15 | 因太金属株式会社 | Make the method and apparatus of permanent magnet and be used for rubber mold at the action of a magnetic field compacted under |
| CN1465996A (en) * | 2002-07-05 | 2004-01-07 | 思考电机（上海）有限公司 | Lens driving device |
| JP2005195912A (en) * | 2004-01-08 | 2005-07-21 | Sankyo Seiki Mfg Co Ltd | Lens-driving device |
| CN1786808A (en) * | 2004-12-11 | 2006-06-14 | 鸿富锦精密工业（深圳）有限公司 | Optical auto-focusing apparatus |
Also Published As
| Publication number | Publication date |
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| CN101191889A (en) | 2008-06-04 |
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Granted publication date: 20100224 Termination date: 20151122 |