CN105093473A - Camera module - Google Patents
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- CN105093473A CN105093473A CN201510560328.3A CN201510560328A CN105093473A CN 105093473 A CN105093473 A CN 105093473A CN 201510560328 A CN201510560328 A CN 201510560328A CN 105093473 A CN105093473 A CN 105093473A
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- camera lens
- shell fragment
- lens module
- camera
- circuit board
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- 230000003287 optical effect Effects 0.000 claims abstract description 24
- 239000012634 fragment Substances 0.000 claims description 42
- 238000012856 packing Methods 0.000 claims description 18
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 108091008695 photoreceptors Proteins 0.000 description 1
- 238000004826 seaming Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The present invention relates to a camera module comprising a circuit board, a bracket, an image sensor, an optical filter, a voice coil motor and a lens module. The voice coil motor includes a housing, a plurality of magnets, a first elastic sheet, a lens carrier, a conductive coil, a second elastic sheet and a base. When the lens module is assembled onto the lens carrier and the lens module is in the initial state, the focal plane of the lens module is at one side of the sensing plane that is close to the circuit board. The total stroke of the lens module that moves along the optical axis is larger than a predetermined stroke. The predetermined stroke is determined to be a minimum stroke for the lens module to focus close-shot objects and long-shot objects. In this way, the total stroke can cover the predetermined stroke. The focusing process during the assembling process is avoided, and the production efficiency is improved.
Description
Technical field
The present invention relates to camera technical field, particularly relate to a kind of camera module.
Background technology
Camera module (CCM, CameraCompactModule) is the vital electron device of image capturing.The principle of work of camera module is that scenery generates optics picture by camera lens (lens) and projects (such as CMOS or CCD) on photoreceptor, light signal is converted to electric signal, convert data image signal to through internal image processor (ISP) again and output to digital signal processor (DSP) processing process, convert the format-pattern signals such as GRB, YUV of standard to, more just can see image by display screen.
Usually be applied to mobile phone, notebook or PAD etc. and there is minisize pick-up head module employing voice coil motor (VCM, VoiceCoilMotor) of focus function as focusing drive unit.After camera lens carrier and lens unit assemble, traditional voice coil motor all presets the stroke range of camera lens module along optical axis direction movement, and namely camera lens carrier can drive lens unit along the scope of optical axis direction movement.
Camera lens carrier and lens unit need accurate assembling when assembling, be specially lens unit first by machine or manually by predetermined rotating cycle loading camera lens carrier, due to the existence of error, position must be loaded by focus control to lens unit to finely tune, when making to be positioned at original state, the focal plane of lens unit is just positioned at the sensing face surface of image sensor, then carries out a glue to camera lens carrier and lens unit and make both fix position.So, VCM forms sharp image when setting and can taking distant view and close shot object in stroke range.But focussing process is continuous turn lens fine-tuning unit and constantly takes pictures to judge whether to put in place, and waste time and energy, production efficiency is low.
Summary of the invention
Based on this, be necessary for above-mentioned technical matters, provide a kind of and exempt from focusing with the camera module of enhancing productivity.
A kind of camera module, comprising:
Circuit board;
Support, is arranged to coordinate on described circuit board and with described circuit board and forms receiving space;
Image sensor, being arranged on described circuit board and being contained in described receiving space, described image sensor has a sensing face;
Optical filter, is arranged on the sidewall of described support, and is positioned at the side of described image sensor away from described circuit board;
Voice coil motor, be arranged on described support, described voice coil motor comprises shell, multiple magnetite, first shell fragment, camera lens carrier, conductive coil, second shell fragment and base, described shell comprises roof and sidewall, described roof offers the first light hole, described multiple magnetite is contained in described shell, described first shell fragment is contained in described shell, described first shell fragment comprises elastic arm, one end of described camera lens carrier mutually holds with the elastic arm of described first shell fragment and is connected, described conductive coil is set around the outer peripheral edges of described camera lens carrier, described conductive coil and described magnetite are oppositely arranged, described second shell fragment comprises elastic arm, the other end of described camera lens carrier mutually holds with the elastic arm of described second shell fragment and is connected, the two ends of described conductive coil are electrically connected to described second shell fragment respectively to be electrically connected with described circuit board, described second shell fragment is arranged on described base, described base is arranged on described support, and
Camera lens module, is arranged on described camera lens carrier;
Wherein, when being in original state, the focal plane of described camera lens module is positioned at the side of described sensing face near described circuit board, described camera lens module is greater than predetermined stroke along the total kilometres of optical axis direction movement, and described predetermined stroke is the minimum stroke that described camera lens module can realize the focusing of close shot object and the focusing of distant view object respectively.
Wherein in an embodiment, after described camera lens module and described camera lens vehicle group install, described camera lens module only can move upward along the direction of optical axis.
Wherein in an embodiment, described total kilometres are 1.5 ~ 2 times of described predetermined stroke.
Wherein in an embodiment, described total kilometres are 0.35mm ~ 0.4mm, and described predetermined stroke is 0.2mm ~ 0.25mm.
Wherein in an embodiment, after described camera lens module and described camera lens vehicle group install, described camera lens module can along the direction of optical axis upwards or move downward.
Wherein in an embodiment, described total kilometres are 1.5 ~ 2 times of described predetermined stroke.
Wherein in an embodiment, the total kilometres of the latter half are 0.15mm ~ 0.2mm, and the predetermined stroke of the latter half is 0.1mm ~ 0.15mm; The total kilometres of the first half are 0.2mm ~ 0.25mm, and the predetermined stroke of the first half is 0.1mm ~ 0.15mm.
Wherein in an embodiment, also comprise packing ring, the middle part of described packing ring offers the second light hole, described second light hole is corresponding with described first light hole, successively through first, second light hole described time on described lens module group assembling to described camera lens carrier, described packing ring to be contained in described shell and to be resisted against the inside surface of described roof.
Wherein in an embodiment, described packing ring is provided with reference column, described first shell fragment is also provided with fixed frame, described elastic arm is arranged in described fixed frame, described fixed frame offers pilot hole, and being matched with described reference column by described pilot hole makes described first shell fragment be arranged on described packing ring.
Wherein in an embodiment, described camera lens module comprises lens barrel and is assembled in the lens unit in described lens barrel.
Above-mentioned camera module at least has the following advantages:
After on lens module group assembling to camera lens carrier, when camera lens module is positioned at original state, the focal plane of camera lens module is positioned at the side of sensing face near circuit board, camera lens module can be greater than predetermined stroke along the total kilometres of optical axis direction movement, wherein predetermined stroke is the minimum stroke that camera lens module can realize the focusing of close shot object and distant view object, therefore total kilometres can cover predetermined stroke, save focussing process during assembling, improve production efficiency.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of the camera module in an embodiment;
Fig. 2 is the cut-open view of the module of camera shown in Fig. 1;
Fig. 3 is the cut-open view of another embodiment of the module of camera shown in Fig. 1.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.Set forth a lot of detail in the following description so that fully understand the present invention.But the present invention can be much different from alternate manner described here to implement, those skilled in the art can when without prejudice to doing similar improvement when intension of the present invention, therefore the present invention is by the restriction of following public concrete enforcement.
It should be noted that, when element is called as " being fixed on " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.Term as used herein " vertical ", " level ", "left", "right" and similar statement just for illustrative purposes, do not represent it is unique embodiment.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present invention understand usually.The object of term used in the description of the invention herein just in order to describe specific embodiment, is not intended to be restriction the present invention.Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this instructions is recorded.
Refer to Fig. 1 and Fig. 2, the camera module 10 in an embodiment comprises circuit board 100, image sensor 200, support 300, optical filter 400, voice coil motor 500 and camera lens module 600.Specific in present embodiment, this camera module 10 can realize the object exempting to focus.
Circuit board 100 can be PCB, also can be FPC wiring board.When circuit board 100 is FPC wiring board, a stiffening plate can also be set, to increase the intensity of FPC wiring board.Circuit board 100 can also be arranged capacitance component 110 and connector 120, connector 120 is for being electrically connected with extraneous electronic component.
Image sensor 200 is arranged on circuit board 100, and after light focuses on formation image by camera lens module 600, the light signal of image is converted to electric signal (voltage) by image sensor 200.Particularly, image sensor 200 can be electric charge lotus root seaming element imageing sensor (CCD, or Complimentary Metal-Oxide semiconductor (CMOS, ComplementaryMetal-OxideSemiconductor) ChargeCoupledDevice).Image sensor 200 has a sensing face 210.
Support 300 is arranged to coordinate on circuit board 100 and with circuit board 100 and forms receiving space 300a.Particularly, support 300 is the structure of both ends open, and support 300 is for supporting voice coil motor 500.Image sensor 200 is contained in receiving space 300a.
Optical filter 400 is arranged on the sidewall of support 300, and is positioned at the side of image sensor 200 away from circuit board 100.Such as, can give prominence to and form protruding 310 on the sidewall of support 300, optical filter 400 is placed on protruding 310.Protruding 310 can be annular.Certainly, in other embodiments, can also offer groove at the sidewall of support 300, the edge of optical filter 400 is inserted in groove.Groove can be annular.Particularly, optical filter 400 can be cutoff filter 400, and being formed as of optical filter 400 is square.
Voice coil motor 500 is arranged on support 300, for driving camera lens module 600 to realize the focusing of close shot and distant view.Particularly, voice coil motor 500 comprises shell 510, magnetite 520, packing ring 530, first shell fragment 540, camera lens carrier 550, conductive coil 560, second shell fragment 570 and base 580.
Shell 510 is generally metal shell, and shell 510 is rectangular-shaped, comprises roof 511 and sidewall 512.The quantity of sidewall 512 can be four.Roof 511 offers the first light hole (not shown), and the quantity of magnetite 520 is multiple, and multiple magnetite 520 is contained in shell 510.Particularly, the quantity of magnetite 520 is four, and four magnetites 520 are contained in four corners of four sidewalls 512.
The middle part of packing ring 530 offers the second light hole (not shown), and packing ring 530 to be contained in shell 510 and to be resisted against the inside surface of roof 511.First light hole is corresponding with the second light hole, and such as the first light hole and the second light hole are coaxially arranged.Packing ring 530 is between the first shell fragment 540 and the inside surface of roof 511.Packing ring 530 is provided with reference column.
First shell fragment 540 is contained in shell 510, and the first shell fragment 540 is positioned at the below of packing ring 530.First shell fragment 540 is tabular, and comprise fixed frame and elastic arm, elastic arm is arranged in fixed frame.Particularly, elastic arm is extended internally by fixed frame and is formed.Fixed frame offers pilot hole, and pilot hole is used for matching with reference column making the first shell fragment 540 be arranged at packing ring 530.
Camera lens carrier 550 is for hollow cylindrical and be provided with internal thread, and internal thread is used for and has externally threaded camera lens module 600 and coordinate and assemble.One end of camera lens carrier 550 mutually holds with the elastic arm of the first shell fragment 540 and is connected.
Conductive coil 560 is set around the outer peripheral edges of camera lens carrier 550, and conductive coil 560 and magnetite 520 are oppositely arranged.Conductive coil 560 can be that a wire pitch of the laps is formed.
Second shell fragment 570 is tabular, and the second shell fragment 570 is arranged on base 580, and base 580 is arranged on support 300.Second shell fragment 570 comprises fixed frame and elastic arm, is arranged on base 580 by fixed frame.Particularly, can offer pilot hole on fixed frame, then outstandingly on base 580 form reference column, being matched with reference column by pilot hole makes the second shell fragment 570 be arranged on base 580.The other end of camera lens carrier 550 mutually holds with the elastic arm of the second shell fragment 570 and is connected.The two ends of conductive coil 560 are electrically connected on the second shell fragment 570 respectively to be electrically connected with circuit board 100.
Particularly, the second shell fragment 570 comprises two panels independently half shell fragment, and two panels independently half shell fragment forms a second complete shell fragment 570 jointly.The two panels that the two ends of conductive coil 560 are connected to the second shell fragment 570 is respectively independently on half shell fragment.
Camera lens module 600 is arranged on camera lens carrier 500.Particularly, camera lens module 600 is provided with external thread, is matched by the internal thread of external thread with camera lens carrier 550.Particularly, camera lens module 600 comprises lens barrel and is assembled in the lens unit in lens barrel, and external thread is arranged at lens barrel outer peripheral edges.Camera lens module 600 is by being assembled in camera lens carrier 550 after the first light hole of shell 510 and the second light hole of packing ring 530.
Wherein, when being in original state, the focal plane 600a of camera lens module 600 is positioned at the side of sensing face 210 near circuit board 100, camera lens module 600 can be greater than predetermined stroke along the total kilometres of optical axis direction movement, and predetermined stroke is the minimum stroke that camera lens module 600 can realize the focusing of close shot object and the focusing of distant view object respectively.The starting point of predetermined stroke and terminal are can to the point of close shot focusing and the point can focused to distant view respectively.
Specific in present embodiment, after camera lens module 600 and camera lens carrier 550 assemble, camera lens module 600 only can upwards (the straight arrows direction as in Fig. 2) motion along the direction of optical axis.And the total kilometres that camera lens module 600 moves upward along the direction of optical axis are 1.5 ~ 2 times of predetermined stroke.Such as, total kilometres are 0.35mm ~ 0.4mm, and predetermined stroke is 0.2mm ~ 0.25mm.
Certainly, refer to Fig. 3, in other embodiments, after camera lens module 600 and camera lens carrier 550 assemble, camera lens module 600 can along the direction of optical axis upwards or move downward in (the straight arrows direction as in Fig. 3), during original state, camera lens module 600 is positioned at the centre position of total kilometres.And the total kilometres of camera lens module 600 are 1.5 ~ 2 times of predetermined stroke.Such as, the total kilometres of the latter half are 0.15mm ~ 0.2mm, and the predetermined stroke of the latter half is 0.1mm ~ 0.15mm; The total kilometres of the first half are 0.2mm ~ 0.25mm, and the predetermined stroke of the first half is 0.1mm ~ 0.15mm.
Above-mentioned camera module 10 at least has the following advantages:
Camera lens module 600 is assembled to after on camera lens carrier 550, when camera lens module 600 is positioned at original state, the focal plane of camera lens module 600 is positioned at the side of sensing face 210 near circuit board 100, camera lens module 600 can be greater than predetermined stroke along the total kilometres of optical axis direction movement, wherein predetermined stroke is the minimum stroke that camera lens module 600 can realize the focusing of close shot object and distant view object, therefore total kilometres can cover predetermined stroke, save focussing process during assembling, improve production efficiency.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a camera module, is characterized in that, comprising:
Circuit board;
Support, is arranged to coordinate on described circuit board and with described circuit board and forms receiving space;
Image sensor, being arranged on described circuit board and being contained in described receiving space, described image sensor has a sensing face;
Optical filter, is arranged on the sidewall of described support, and is positioned at the side of described image sensor away from described circuit board;
Voice coil motor, be arranged on described support, described voice coil motor comprises shell, multiple magnetite, first shell fragment, camera lens carrier, conductive coil, second shell fragment and base, described shell comprises roof and sidewall, described roof offers the first light hole, described multiple magnetite is contained in described shell, described first shell fragment is contained in described shell, described first shell fragment comprises elastic arm, one end of described camera lens carrier mutually holds with the elastic arm of described first shell fragment and is connected, described conductive coil is set around the outer peripheral edges of described camera lens carrier, described conductive coil and described magnetite are oppositely arranged, described second shell fragment comprises elastic arm, the other end of described camera lens carrier mutually holds with the elastic arm of described second shell fragment and is connected, the two ends of described conductive coil are electrically connected to described second shell fragment respectively to be electrically connected with described circuit board, described second shell fragment is arranged on described base, described base is arranged on described support, and
Camera lens module, is arranged on described camera lens carrier;
Wherein, when being in original state, the focal plane of described camera lens module is positioned at the side of described sensing face near described circuit board, described camera lens module is greater than predetermined stroke along the total kilometres of optical axis direction movement, and described predetermined stroke is the minimum stroke that described camera lens module can realize the focusing of close shot object and the focusing of distant view object respectively.
2. camera module according to claim 1, is characterized in that, after described camera lens module and described camera lens vehicle group install, described camera lens module only can move upward along the direction of optical axis.
3. camera module according to claim 2, is characterized in that, described total kilometres are 1.5 ~ 2 times of described predetermined stroke.
4. camera module according to claim 3, is characterized in that, described total kilometres are 0.35mm ~ 0.4mm, and described predetermined stroke is 0.2mm ~ 0.25mm.
5. camera module according to claim 1, is characterized in that, after described camera lens module and described camera lens vehicle group install, described camera lens module can along the direction of optical axis upwards or move downward.
6. camera module according to claim 5, is characterized in that, described total kilometres are 1.5 ~ 2 times of described predetermined stroke.
7. camera module according to claim 6, is characterized in that, the total kilometres of the latter half are 0.15mm ~ 0.2mm, and the predetermined stroke of the latter half is 0.1mm ~ 0.15mm; The total kilometres of the first half are 0.2mm ~ 0.25mm, and the predetermined stroke of the first half is 0.1mm ~ 0.15mm.
8. camera module according to claim 1, it is characterized in that, also comprise packing ring, the middle part of described packing ring offers the second light hole, described second light hole is corresponding with described first light hole, successively through first, second light hole described time on described lens module group assembling to described camera lens carrier, described packing ring to be contained in described shell and to be resisted against the inside surface of described roof.
9. camera module according to claim 8, it is characterized in that, described packing ring is provided with reference column, described first shell fragment is also provided with fixed frame, described elastic arm is arranged in described fixed frame, described fixed frame offers pilot hole, and being matched with described reference column by described pilot hole makes described first shell fragment be arranged on described packing ring.
10. camera module according to claim 1, is characterized in that, described camera lens module comprises lens barrel and is assembled in the lens unit in described lens barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510560328.3A CN105093473A (en) | 2015-09-06 | 2015-09-06 | Camera module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510560328.3A CN105093473A (en) | 2015-09-06 | 2015-09-06 | Camera module |
Publications (1)
| Publication Number | Publication Date |
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| CN105093473A true CN105093473A (en) | 2015-11-25 |
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Family Applications (1)
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| CN201510560328.3A Pending CN105093473A (en) | 2015-09-06 | 2015-09-06 | Camera module |
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Cited By (9)
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| CN105530413A (en) * | 2015-12-01 | 2016-04-27 | 宁波舜宇光电信息有限公司 | Camera module and electric bracket and line conduction method thereof |
| CN105915776A (en) * | 2016-06-30 | 2016-08-31 | 江西盛泰光学有限公司 | DAC controlled focusing camera module |
| CN106534628A (en) * | 2016-09-21 | 2017-03-22 | 广东虹勤通讯技术有限公司 | Bi-directional camera module and mobile terminal |
| WO2017092694A1 (en) * | 2015-12-01 | 2017-06-08 | 宁波舜宇光电信息有限公司 | Photographing module and electric bracket thereof |
| CN107404608A (en) * | 2016-05-18 | 2017-11-28 | 罗伯特·博世有限公司 | Camara module for vehicle |
| CN108600602A (en) * | 2018-07-26 | 2018-09-28 | 维沃移动通信有限公司 | A kind of camera module of mobile terminal and mobile terminal |
| WO2020135196A1 (en) * | 2018-12-27 | 2020-07-02 | 华为技术有限公司 | Camera assembly and user equipment |
| CN111510601A (en) * | 2020-04-22 | 2020-08-07 | 昆山丘钛微电子科技有限公司 | Camera module and motor thereof |
| CN112492129A (en) * | 2019-09-12 | 2021-03-12 | 华为技术有限公司 | Camera module and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105530413A (en) * | 2015-12-01 | 2016-04-27 | 宁波舜宇光电信息有限公司 | Camera module and electric bracket and line conduction method thereof |
| WO2017092694A1 (en) * | 2015-12-01 | 2017-06-08 | 宁波舜宇光电信息有限公司 | Photographing module and electric bracket thereof |
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| US10701255B2 (en) | 2015-12-01 | 2020-06-30 | Ningbo Sunny Opotech Co., Ltd. | Photographing module and electric bracket thereof |
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| CN105915776A (en) * | 2016-06-30 | 2016-08-31 | 江西盛泰光学有限公司 | DAC controlled focusing camera module |
| CN106534628A (en) * | 2016-09-21 | 2017-03-22 | 广东虹勤通讯技术有限公司 | Bi-directional camera module and mobile terminal |
| CN108600602A (en) * | 2018-07-26 | 2018-09-28 | 维沃移动通信有限公司 | A kind of camera module of mobile terminal and mobile terminal |
| WO2020135196A1 (en) * | 2018-12-27 | 2020-07-02 | 华为技术有限公司 | Camera assembly and user equipment |
| CN112492129A (en) * | 2019-09-12 | 2021-03-12 | 华为技术有限公司 | Camera module and electronic equipment |
| CN112492129B (en) * | 2019-09-12 | 2022-05-17 | 华为技术有限公司 | Camera module and electronic equipment |
| CN111510601A (en) * | 2020-04-22 | 2020-08-07 | 昆山丘钛微电子科技有限公司 | Camera module and motor thereof |
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