CN101093272B - Lens module, and camera module - Google Patents
Lens module, and camera module Download PDFInfo
- Publication number
- CN101093272B CN101093272B CN2006100612431A CN200610061243A CN101093272B CN 101093272 B CN101093272 B CN 101093272B CN 2006100612431 A CN2006100612431 A CN 2006100612431A CN 200610061243 A CN200610061243 A CN 200610061243A CN 101093272 B CN101093272 B CN 101093272B
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- stopper section
- camera
- module
- lens barrel
- lens
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Abstract
A lens module is prepared for setting electric magnetic iron on external lens cone, setting permanent magnet with lug on internal lens cone, arranging said lug between the first blocking unit and the second blocking unit and enabling to drive internal lens cone to move in fixed scope along optical-axis direction by changing magnetic field direction of electric magnetic iron on external lens cone.
Description
Technical field
The present invention relates to camera technique, relate in particular to a kind of camera lens module and use the camera module of this camera lens module.
Background technology
Along with Development of Multimedia Technology, digital camera, video camera are more and more favored by consumers in general, when people's logarithmic code camera, video camera are pursued miniaturization, wish again can take the different image of far and near distance at same position, and obtain the distinct image picture, the camera of focusing thus arises at the historic moment, and the focusing of camera normally realizes by moving of the camera lens in the camera.
A kind of camera lens module that is used for digital camera, it is by the screw between camera lens and the lens mount and in cooperating of the spring between Image sensor apparatus and the camera lens camera lens is moved to realize focusing as straight line.This camera lens module mainly comprises a camera lens, a lens mount, and a screw, a spring, a lens barrel, critical pieces such as some eyeglasses and a top cover are formed.During shot object, when object a long way off the time, the imaging point of object just is positioned at complementary metal oxide semiconductor (CMOS) (Complementary Metal-oxide Semiconductor, call CMOS in the following text) on the image sensing device, spring is compressive state, when object on hand the time, desire on CMOS image sensing device, to obtain the picture rich in detail of this object, need to adjust the distance between eyeglass and CMOS image sensing device, make the imaging point of object be positioned at CMOS image sensing setting position place, by a hand or an external tool screw is rotated counterclockwise in the through hole of lens mount, camera lens is done stable and linear moving in lens mount under the resilient force of spring, can judge by the display screen of digital camera outside to focus on correctness, the camera lens module is focused on the correct camera site.
Though this digital camera lens module can be realized the focusing of digital camera, also can realize shooting at close range, but because this mechanism's volume is little, the setting range of screw is also less than normal, make the focusing ability of this digital camera focus adjusting mechanism be limited in the little scope, be difficult to realize the requirement of focusing on a large scale.
Summary of the invention
In view of this, the camera module that is necessary to provide the big camera lens module of a kind of focusing range and uses this camera lens module.
A kind of camera lens module, it comprises and is provided with the inner lens cone of eyeglass in the outer lens barrel, one and is located between described outer lens barrel and the inner lens cone respectively first stopper section and second stopper section near picture side and thing side.Wherein, described outer lens barrel is provided with electromagnet, and inner lens cone is provided with eternal magnet and has a projection.Described first stopper section and second stopper section are ring texture, and all with described outer lens barrel and the coaxial setting of inner lens cone.Described projection makes inner lens cone move in fixed range along optical axis direction by changing the power on magnetic direction of magnet of outer lens barrel between first stopper section and second stopper section.
A kind of camera module, it comprises a lens mount, one is contained in the image acquisition unit in the described lens mount and is installed in camera lens module on the described lens mount.Described camera lens module comprises and is provided with the inner lens cone of eyeglass in the outer lens barrel, one and is located between described outer lens barrel and the inner lens cone respectively first stopper section and second stopper section near picture side and thing side.Wherein, described outer lens barrel is provided with electromagnet, and inner lens cone is provided with eternal magnet and has a projection.Described first stopper section and second stopper section are ring texture, and all with described outer lens barrel and the coaxial setting of inner lens cone.Described projection makes inner lens cone move in fixed range along optical axis direction by changing the power on magnetic direction of magnet of outer lens barrel between first stopper section and second stopper section.
Described camera lens module is by being provided with electromagnet and eternal magnet is set on inner lens cone on the lens barrel outside, thereby the inner lens cone that utilizes magnetic force to drive interior band eyeglass is done the linear realization focusing of moving at optical axis direction, this mechanism structure is simple, focusing range is big, makes can both obtain picture rich in detail when far away, shooting at close range.
Description of drawings
Fig. 1 is the camera module cut-open view that the first embodiment of the present invention provides.
Fig. 2 is that the electromagnet in the camera module that provides of the first embodiment of the present invention launches synoptic diagram.
The camera module cut-open view that Fig. 3 second embodiment of the present invention provides.
The camera module cut-open view that Fig. 4 third embodiment of the present invention provides.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
See also Fig. 1, be the camera module 100 that the first embodiment of the present invention provides, it comprises an image acquisition unit 10, a camera lens module 20 and a lens mount 30.
Described image acquisition unit 10 is contained in the lens mount 30, and it can be charge-coupled image sensor or CMOS (Complementary Metal Oxide Semiconductor).Preferably, described image acquisition unit 10 adopts ceramic lead chip carrier packages (Ceramic Leaded Chip Carrier, CLCC), plastic leaded chip carrier encapsulation (Plastic Leaded Chip Carrier, PLCC) or chip size packages (Chip Scale Package, CSP).
Described camera lens module 20 is installed on the described lens mount 30.Described camera lens module 20 comprises an outer lens barrel 21, an inner lens cone 22 and first stopper section 23 and second stopper section 24 that are provided with along optical axis direction.Described first stopper section 23 and second stopper section 24 are ring texture, and described outer lens barrel 21, inner lens cone 22, first stopper section 23 and second stopper section 24 are coaxial setting.
Be provided with at least one eyeglass 221 in the described inner lens cone 22, be used for the subject volume imaging.The material of described eyeglass 221 can be selected from glass or plastics.The material of described inner lens cone 22 can adopt a kind of in polycarbonate or the acrylonitrile-butadiene-styrene (ABS) or the mixing of the two.Be provided with two eyeglasses 221 in the inner lens cone described in the present embodiment 22.The internal diameter of the external diameter of described inner lens cone 22 and first stopper section 23 and second stopper section 24 is suitable, and can move along optical axis direction relative to described first stopper section 23 and second stopper section 24.Described inner lens cone 22 is provided with at least one eternal magnet 222, and the South Pole of described eternal magnet 222 and the arctic are respectively towards the two ends of camera lens module 20.Preferably, described eternal magnet 222 and inner lens cone 22 are structure as a whole.Described inner lens cone 22 is formed with a projection 223 in radial direction, described projection 223 between first stopper section 23 and second stopper section 24, thereby can with the moving range of first stopper section 23 and second stopper section, 24 engagement limits inner lens cones 22.Be appreciated that described eternal magnet 222 also can be arranged on the described projection 223.
Described outer lens barrel 21 is provided with electromagnet 211, and described electromagnet 211 can produce a magnetic field, and described eternal magnet 222 is produced a thrust or a suction along optical axis direction, makes eternal magnet 222 drive inner lens cone 22 and moves along optical axis direction.Described electromagnet 211 and outer lens barrel 21 can be structure as a whole, and specifically can be about to electromagnet 211 and be fixed in earlier in the shaping mould by the method for the embedded ejection formation of mould, inject outer lens barrel 21 materials then and make it to form integrative-structure with electromagnet 211.
Described first stopper section 23 comprises a first end 231 and a second end 232.Described first end 231 is fixed on the lens mount 30, and the second end 232 is between described outer lens barrel 21 and the inner lens cone 22.The mode that described first end 231 is fixed on the lens mount 30 specifically can adopt glue bonding.Screw-threaded engagement by mating mutually between the outside surface of described the second end 232 and outer lens barrel 21 inside surfaces makes described outer lens barrel 21 to move along optical axis direction relative to lens mount 30.
The end of camera lens module 20 away from lens mount 30 is located in described second stopper section 24, and outside described between lens barrel 21 and the inner lens cone 22.The also screw-threaded engagement by mating mutually between its outside surface and outer lens barrel 21 inside surfaces makes described outer lens barrel 21 to move along optical axis direction relative to second stopper section 24.By rotating the focusing range that second stopper section 24 can change camera lens module 20.
See also Fig. 2, be the expansion synoptic diagram of the electromagnet 211 of setting on the described outer lens barrel 21, described electromagnet 211 comprises magnetic core 212 and coiling 213.Described magnetic core 212 comprises that a body 2121 reaches at the outward extending a plurality of projections 2122 of 2121 liang of facing surfaces of described body.The winding mode of described coiling 213 can make all projections 2122 be all the South Pole or the arctic away from body 2,121 one ends.Described magnetic core 212 is a ring texture, and it is specially along curling perpendicular to projection 2122 directions, and as shown in Figure 2, the side a and b of described magnetic core 212 bodies 2121 in back that curl links to each other, and its central shaft is parallel with projection and consistent with optical axis.The projection 2122 of described magnetic core 212 the same sides can be one or more, and in the present embodiment, the projection 2122 that is in magnetic core 212 the same sides is four.Described coiling 213 can be by picking out its power supply of wire pair on the lens mount 30.Certainly, for cooperating outer lens barrel 21 girths and magnetism intensity, described magnetic core 212 length and projection 2122 distribution densities all can suitably be adjusted.
Described camera lens module 20 utilizes magnetic force that camera lens module 20 is focused by electromagnet 211 being set and eternal magnet 222 is set on inner lens cone 22 on the lens barrel 21 outside, can obtain bigger focusing range.In addition, described camera lens module 20 is by the further focusing range of magnascope head mould group 20 in rotation outer lens barrel 21 and/or second stopper section 24, and can realize fine setting Jiao to camera lens module 20.
See also Fig. 3, be the camera module 100 ' that the second embodiment of the present invention provides, the camera module 100 that itself and the first embodiment of the present invention provide is basic identical.Its difference only is that described second stopper section 24 ' is structure as a whole with outer lens barrel 21 '.
See also Fig. 4, the camera module 100 that provides for the third embodiment of the present invention ", the camera module 100 that itself and the first embodiment of the present invention provide is basic identical.Its difference only is described first stopper section 23 " and outer lens barrel 21 " be structure as a whole.
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 (10)
1. camera lens module, it comprises an outer lens barrel, be provided with the inner lens cone of eyeglass in one and be located at close respectively first stopper section and second stopper section between described outer lens barrel and the inner lens cone as side and thing side, it is characterized in that, described first stopper section and second stopper section are ring texture, and all with described outer lens barrel and the coaxial setting of inner lens cone, described outer lens barrel is provided with electromagnet, inner lens cone is provided with eternal magnet and has a projection, described projection makes inner lens cone move in fixed range along optical axis direction by changing the power on magnetic direction of magnet of outer lens barrel between first stopper section and second stopper section.
2. camera lens module as claimed in claim 1 is characterized in that, described outer lens barrel and electromagnet are structure as a whole.
3. camera lens module as claimed in claim 2 is characterized in that, the outer lens barrel of described integrative-structure and electromagnet form by the method for the embedded ejection formation of mould.
4. camera lens module as claimed in claim 1 is characterized in that, passes through screw-threaded engagement between at least one in described outer lens barrel and described first stopper section and second stopper section.
5. camera lens module as claimed in claim 1 is characterized in that, the described outer lens barrel and first stopper section are structure as a whole.
6. camera lens module as claimed in claim 1 is characterized in that, the described outer lens barrel and second stopper section are structure as a whole.
7. camera lens module as claimed in claim 1 is characterized in that, described eternal magnet is formed on the projection.
8. camera module, it comprises a lens mount, one is contained in the image acquisition unit in the described lens mount and is installed in camera lens module on the described lens mount, described camera lens module comprises an outer lens barrel, be provided with the inner lens cone of eyeglass in one and be located at close respectively first stopper section and second stopper section between described outer lens barrel and the inner lens cone as side and thing side, it is characterized in that, described first stopper section and second stopper section are ring texture, and all with described outer lens barrel and the coaxial setting of inner lens cone, described outer lens barrel is provided with electromagnet, inner lens cone is provided with eternal magnet and has a projection, described projection makes inner lens cone move in fixed range along optical axis direction by changing the power on magnetic direction of magnet of outer lens barrel between first stopper section and second stopper section.
9. camera module as claimed in claim 8 is characterized in that, passes through screw-threaded engagement between at least one in described outer lens barrel and described first stopper section and second stopper section.
10. camera module as claimed in claim 8 is characterized in that, described first stopper section is fixed on the described lens mount near the end as side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100612431A CN101093272B (en) | 2006-06-21 | 2006-06-21 | Lens module, and camera module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100612431A CN101093272B (en) | 2006-06-21 | 2006-06-21 | Lens module, and camera module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101093272A CN101093272A (en) | 2007-12-26 |
| CN101093272B true CN101093272B (en) | 2010-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100612431A Expired - Fee Related CN101093272B (en) | 2006-06-21 | 2006-06-21 | Lens module, and camera module |
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| Country | Link |
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| CN (1) | CN101093272B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102025899B (en) * | 2009-09-11 | 2013-11-06 | 鸿富锦精密工业（深圳）有限公司 | Camera module and assembling method thereof |
| KR102232029B1 (en) | 2014-03-17 | 2021-03-26 | 엘지이노텍 주식회사 | Lens moving unit and camera module having the same |
| CN114764177A (en) * | 2022-04-13 | 2022-07-19 | 惠州Tcl移动通信有限公司 | Camera module |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5220461A (en) * | 1990-09-10 | 1993-06-15 | Sony Corporation | Lens barrel apparatus for automatic focusing |
| CN2636263Y (en) * | 2003-07-26 | 2004-08-25 | 鸿富锦精密工业（深圳）有限公司 | Lens module and digital camera using same |
| CN2694300Y (en) * | 2003-11-08 | 2005-04-20 | 鸿富锦精密工业（深圳）有限公司 | Image view-finding unit |
-
2006
- 2006-06-21 CN CN2006100612431A patent/CN101093272B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5220461A (en) * | 1990-09-10 | 1993-06-15 | Sony Corporation | Lens barrel apparatus for automatic focusing |
| CN2636263Y (en) * | 2003-07-26 | 2004-08-25 | 鸿富锦精密工业（深圳）有限公司 | Lens module and digital camera using same |
| CN2694300Y (en) * | 2003-11-08 | 2005-04-20 | 鸿富锦精密工业（深圳）有限公司 | Image view-finding unit |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2000-171678A 2000.06.23 |
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| Publication number | Publication date |
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| CN101093272A (en) | 2007-12-26 |
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Granted publication date: 20100825 Termination date: 20160621 |