CN104280853A - Focusing structure, lens module and camera module provided with lens module - Google Patents
Focusing structure, lens module and camera module provided with lens module Download PDFInfo
- Publication number
- CN104280853A CN104280853A CN201410497306.2A CN201410497306A CN104280853A CN 104280853 A CN104280853 A CN 104280853A CN 201410497306 A CN201410497306 A CN 201410497306A CN 104280853 A CN104280853 A CN 104280853A
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- China
- Prior art keywords
- lens
- camera
- module
- shell fragment
- focusing
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/32—Means for focusing
- G03B13/34—Power focusing
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Abstract
The invention provides a focusing structure, a lens module and a camera module provided with the lens module. The focusing structure is used for driving a focusing lens to conduct focusing in the lens module. The focusing structure comprises a fixed base, an elastic sheet, magnets and coils located at the edge of the fixed base. The middle of the elastic sheet is provided with a mounting hole. The focusing lens is contained and fixed into the mounting hole. The magnets are arranged on the elastic sheet and surround the mounting hole. The elastic sheet is contained in the fixed base, and the periphery of the elastic sheet is fixed to the fixed base. The coils are opposite to the magnets. Magnetic fields generated by the coils act with the magnets to push the elastic sheet to deform, and then the focusing lens is pushed to move along the optical axis. The invention further provides the lens module and the camera module which are provided with the focusing structure.
Description
Technical field
The present invention relates to a kind of focusing structural, camera lens module and there is the camera module of described focusing structural.
Background technology
Current, traditional camera lens module auto-focusing module is by voice coil motor and associated gear or screw drive structure, and controls the moving loads camera motion of motor by driver circuit, thus realizes the focus function of camera lens; Under the acting force that wherein voice coil motor mainly produces at magnet by spring leaf and coil energization, realize camera lens load smoothly and continuous print move; But the torsion between lens subassembly and motor controls very important, the large fragile motor of torsion, and torsion tiny lens easily runs Jiao, and the friction fit of gear or screw thread easily produces friction dust and pollutes module, affects camera lens module quality.
Summary of the invention
Embodiment of the present invention technical matters to be solved is, provides a kind of focusing structural stably.
The present invention there is a need to provide a kind of to be had the camera lens module of described focusing structural and has the camera module of described focusing structural.
To achieve these goals, embodiment of the present invention provides following technical scheme:
The invention provides a kind of focusing structural, for driving in camera lens module, focus lens is focused, described focusing structural comprises holder, shell fragment, magnet and be positioned at the coil at holder edge, mounting hole is provided with in the middle part of described shell fragment, describedly focus lens is accommodated and is fixed in described mounting hole, described magnet is located on described shell fragment around described mounting hole periphery, described shell fragment is contained in described holder and periphery and holder are fixed, described coil is relative with described magnet, the magnetic field that described coil produces and magnet effect push away and described shell fragment are out of shape, and then promote described to focus lens along axis movement.
Wherein, described holder is annular tubular, and described shell fragment outward flange is fixed on the internal perisporium of described holder.
Wherein, described shell fragment is ring slice.
Wherein, described magnet is embedded on described shell fragment or is fixed on the surface of shell fragment.
The invention provides a kind of camera lens module, described camera lens module comprises lens barrel, to focus lens, main lens group and above-described focusing structural, described main lens group and focusing structural are contained in described lens barrel and interval and arrange, and described coil is fixed on main lens group periphery in described lens barrel.
Wherein, described camera lens module also comprises base, is loaded on the optical filter of base, and described lens barrel covers on described base, is shownly oppositely arranged focus lens and described optical filter coaxial spaced.
Wherein, described lens barrel is the cover body of one end open, offers the camera aperture relative with described main lens group in the middle part of lens barrel blind end.
Wherein, described holder is installed in described lens barrel has three lens near main lens group described in openend, and the relatively described camera aperture of size of each lens optic of described main lens subtracts increase successively.
The invention provides a kind of camera module, described camera module comprises wiring board, above-described camera lens module and is loaded on the image sensor of wiring board, describedly affects sensor and described optical filter interval is oppositely arranged.
Wherein, described is a slice eyeglass to focus lens, and described to focus lens relative to described main lens group near described image sensor; Described coil is relative with magnet interval, and described coil relatively and magnet away from described image sensor.
Focusing structural of the present invention is when camera module is taken, by giving coil with electric current and magnet effect, push away and described shell fragment is out of shape, and then drive described focus lens along axis movement, and then realize focusing object, avoid adaptive torsion problem between camera lens and motor, realize steadily focusing, and describedly produce movement focus to focus lens is integrated with shell fragment, structure is simple, be convenient to assembling also can not produce friction dust and pollute camera lens module, ensure camera lens module quality.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the camera lens modular structure schematic diagram that the present invention has focusing structural;
Fig. 2 is the camera module schematic diagram of the camera lens module knot had described in Fig. 1.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1 and Fig. 2, present pre-ferred embodiments provides a kind of camera module 100, and described camera module 100 comprises camera lens module 10, focusing structural 20, circuit board 15 and is fixed on the image sensor 16 of circuit board 15.Described camera lens module 10 comprises lens barrel 12, to focus lens 17 and main lens group 18.
Described focusing structural 20 is for driving the movement to focus lens in camera lens module, it comprises holder 21, shell fragment 22, magnet 23 and be positioned at the coil 24 at holder 21 edge.Mounting hole (not shown) is provided with in the middle part of described shell fragment 22, describedly focus lens 17 is accommodated and is fixed in described mounting hole, described magnet 23 to be located on described shell fragment 22 and around described mounting hole periphery, described shell fragment 22 is contained in described holder 21 and periphery is fixing with holder 21, and described coil 24 is relative with described magnet 23.
Described main lens group 18 and focusing structural 20 are contained in described lens barrel 12 and interval and arrange, and described coil 24 is fixed on main lens group periphery in described lens barrel 12.Described lens barrel 12 covers on described circuit board 15, and described main lens group 18, focusing structural 20 and image sensor 16 successively interval are arranged, and described focusing structural 20 is between main lens group 18 and described image sensor 16.Wherein, described circuit board 15 provides electric current for coil 24.The circuit board of described camera module 100 provides electric current to described coil 24, the magnetic field that coil 24 produces and magnet 23 act on pushing away and described shell fragment 22 are out of shape, and then promote described to focus lens 17 along axis movement, near or away from described main lens group 18, and then realize focusing, optical fiber squeezes into described image sensor 16 with described to focus lens 17 from the external world through described main lens group 18, image sensor 16 sense through light and produce corresponding signal of video signal.
In the present embodiment, described shell fragment 22 is ring slice, is such as made up through punching press of copper sheet of the good metal material of elasticity.Described holder 21 is annular canister, and it is provided with the through inner chamber in two ends, and described shell fragment 22 is contained in described inner chamber, and the periphery of shell fragment 22 is fixed on the internal perisporium of described holder 21.Described holder 21 is embedded at described lens barrel 12 inner peripheral surface near one end of opening.Described magnet 23 is embedded on described shell fragment 22 or is fixed on the surface of shell fragment 22.
In the present embodiment, described lens barrel 12 is the hood-like cylinder of one end open, offers the camera aperture (not shown) relative with described main lens group 18 in the middle part of its blind end.The relatively described camera aperture of size of each lens optic of described main lens group 18 subtracts increase successively.Described lens barrel 12 is plastic parts.Described circuit board 15 provides electric current and controllable current size for coil 24.Described image sensor 16 is loaded on PCB surface and is electrically connected with wiring board 15, for sensing through described main lens group 18 and the described light to focus lens 17, and produces corresponding signal of video signal.Wherein, described main lens group 18 and described lens combination focus lens 17 being formed jointly to described camera lens module.Described main lens group 18 has three lens, and described is a slice eyeglass to focus lens, and described to focus lens 17 relative to described main lens group 18 closer to described image sensor 16.Described coil 24 is relative with magnet 23 interval, and described coil 24 relatively and magnet 23 further from described image sensor 16.
Selectable, described camera lens module 100 also comprises disc-shaped base 19, described base 19 is loaded between described circuit board 15 and described lens barrel 12, optical filter 191 is equiped with in the middle part of described base, described optical filter 191 between focus lens 17 and described image sensor 16, and is coaxially arranged focus lens 17, main lens group 18 with described.Described base 19 is loaded between described lens barrel 12 and described circuit board 15, described optical filter 191 described between focus lens 17 and described image sensor 16.In the present embodiment, described lens barrel 12 and described base 19 are by colloid bonding method or be threaded fixing.
Focusing structural 20 of the present invention is when camera module is taken, electric current and magnet 23 is provided to act on by giving coil 24, push away and described shell fragment 22 is out of shape, and then drive described focus lens 17 along axis movement, and then realize described main lens group 18 and focusing object focus lens 17 being formed to optical system, avoid adaptive torsion problem between camera lens and motor, realize steadily focusing, and describedly produce mobile focusing to focus lens is integrated with shell fragment, structure is simple, be convenient to assembling also can not produce friction dust and pollute camera lens module, ensure camera lens module quality.
Above-described embodiment, does not form the restriction to this technical scheme protection domain.The amendment done within any spirit at above-mentioned embodiment and principle, equivalently to replace and improvement etc., within the protection domain that all should be included in this technical scheme.
Claims (10)
1. a focusing structural, for driving in camera lens module, focus lens is focused, it is characterized in that: described focusing structural comprises holder, shell fragment, magnet and be positioned at the coil at holder edge, mounting hole is provided with in the middle part of described shell fragment, describedly focus lens is accommodated and is fixed in described mounting hole, described magnet is located on described shell fragment around described mounting hole periphery, described shell fragment is contained in described holder and periphery and holder are fixed, described coil is relative with described magnet, the magnetic field that described coil produces and magnet effect push away and described shell fragment are out of shape, and then promote described to focus lens along axis movement.
2. focusing structural as claimed in claim 1, it is characterized in that, described holder is annular tubular, and described shell fragment outward flange is fixed on the internal perisporium of described holder.
3. focusing structural as claimed in claim 1 or 2, it is characterized in that, described shell fragment is ring slice.
4. focusing structural as claimed in claim 3, it is characterized in that, described magnet is embedded on described shell fragment or is fixed on the surface of shell fragment.
5. a camera lens module, it is characterized in that, described camera lens module comprises lens barrel, to the focusing structural described in focus lens, main lens group and any one of claim 1-4, described main lens group and focusing structural are contained in described lens barrel and interval and arrange, and described coil is fixed on main lens group periphery in described lens barrel.
6. focusing structural as claimed in claim 5, it is characterized in that, described camera lens module also comprises base, is loaded on the optical filter of base, and described lens barrel covers on described base, is shownly oppositely arranged focus lens and described optical filter coaxial spaced.
7. camera lens module as claimed in claim 6, it is characterized in that, described lens barrel is the cover body of one end open, offers the camera aperture relative with described main lens group in the middle part of lens barrel blind end.
8. camera lens module as claimed in claim 7, is characterized in that, described holder is installed in described lens barrel near openend; Described main lens group has three lens, and the relatively described camera aperture of size of each lens optic of described main lens subtracts increase successively.
9. a camera module, is characterized in that, described camera module comprises wiring board, camera lens module as described in any one of claim 5-8 and is loaded on the image sensor of wiring board, describedly affects sensor and described optical filter interval is oppositely arranged.
10. camera module as claimed in claim 9, it is characterized in that, described is a slice eyeglass to focus lens, and described to focus lens relative to described main lens group near described image sensor; Described coil is relative with magnet interval, and described coil relatively and magnet away from described image sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410497306.2A CN104280853A (en) | 2014-09-25 | 2014-09-25 | Focusing structure, lens module and camera module provided with lens module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410497306.2A CN104280853A (en) | 2014-09-25 | 2014-09-25 | Focusing structure, lens module and camera module provided with lens module |
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| CN104280853A true CN104280853A (en) | 2015-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410497306.2A Pending CN104280853A (en) | 2014-09-25 | 2014-09-25 | Focusing structure, lens module and camera module provided with lens module |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105158871A (en) * | 2015-08-25 | 2015-12-16 | 南昌欧菲光电技术有限公司 | Lens module and camera device |
| CN105158872A (en) * | 2015-08-25 | 2015-12-16 | 南昌欧菲光电技术有限公司 | Focusing structure, lens assembly and camera module |
| CN105911668A (en) * | 2015-02-25 | 2016-08-31 | 三星电机株式会社 | Camera module |
| CN105988176A (en) * | 2015-02-10 | 2016-10-05 | 安徽昌硕光电子科技有限公司 | Viewfinder possessing micro-motion device |
| CN106443948A (en) * | 2016-12-27 | 2017-02-22 | 苏州聚力电机有限公司 | Photographing module with multiple camera lenses focusing respectively |
| CN110417956A (en) * | 2018-04-28 | 2019-11-05 | Oppo广东移动通信有限公司 | Electronic equipment |
| CN110456591A (en) * | 2019-07-23 | 2019-11-15 | 珠海格力电器股份有限公司 | A kind of focal length adjustment device and mobile terminal |
| CN112130400A (en) * | 2019-06-25 | 2020-12-25 | 大阳科技股份有限公司 | Imaging lens module and electronic device |
| CN113037966A (en) * | 2021-02-27 | 2021-06-25 | 重庆市天实精工科技有限公司 | Micro-camera module and mobile terminal |
| CN114167571A (en) * | 2021-12-03 | 2022-03-11 | 福建师范大学 | Fast focusing relay lens and fast focusing device |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105988176A (en) * | 2015-02-10 | 2016-10-05 | 安徽昌硕光电子科技有限公司 | Viewfinder possessing micro-motion device |
| CN105988176B (en) * | 2015-02-10 | 2018-07-03 | 安徽昌硕光电子科技有限公司 | A kind of view finder with inching gear |
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| CN106443948A (en) * | 2016-12-27 | 2017-02-22 | 苏州聚力电机有限公司 | Photographing module with multiple camera lenses focusing respectively |
| CN110417956A (en) * | 2018-04-28 | 2019-11-05 | Oppo广东移动通信有限公司 | Electronic equipment |
| CN112130400A (en) * | 2019-06-25 | 2020-12-25 | 大阳科技股份有限公司 | Imaging lens module and electronic device |
| CN112130400B (en) * | 2019-06-25 | 2021-11-23 | 大阳科技股份有限公司 | Imaging lens module and electronic device |
| CN110456591A (en) * | 2019-07-23 | 2019-11-15 | 珠海格力电器股份有限公司 | A kind of focal length adjustment device and mobile terminal |
| CN113037966A (en) * | 2021-02-27 | 2021-06-25 | 重庆市天实精工科技有限公司 | Micro-camera module and mobile terminal |
| CN114167571A (en) * | 2021-12-03 | 2022-03-11 | 福建师范大学 | Fast focusing relay lens and fast focusing device |
| CN114167571B (en) * | 2021-12-03 | 2023-04-28 | 福建师范大学 | Quick focusing relay lens and quick focusing device |
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Application publication date: 20150114 |