CN107864338A - A kind of camera module and its control method of variable optical axis - Google Patents
A kind of camera module and its control method of variable optical axis Download PDFInfo
- Publication number
- CN107864338A CN107864338A CN201711261071.7A CN201711261071A CN107864338A CN 107864338 A CN107864338 A CN 107864338A CN 201711261071 A CN201711261071 A CN 201711261071A CN 107864338 A CN107864338 A CN 107864338A
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- camera module
- optical axis
- ceramic element
- piezo ceramic
- variable optical
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- 230000003287 optical effect Effects 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000000919 ceramic Substances 0.000 claims abstract description 50
- 238000003384 imaging method Methods 0.000 claims description 8
- 238000009826 distribution Methods 0.000 claims description 4
- 229910052573 porcelain Inorganic materials 0.000 claims description 3
- 229910017435 S2 In Inorganic materials 0.000 claims 2
- 230000001105 regulatory effect Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 6
- 230000005684 electric field Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000005685 electric field effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
-
- 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
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/56—Accessories
- G03B17/561—Support related camera accessories
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Studio Devices (AREA)
Abstract
The present invention relates to camera technical field, more particularly to a kind of camera module and its control method of variable optical axis, including mounting bracket（1）And it is arranged on mounting bracket（1）Two interior single camera modules（2）, it also includes processor, and the first piezo ceramic element is provided between described two single camera modules（3）, the second piezo ceramic element is provided between one of single camera module and mounting bracket（4）, and first piezo ceramic element（3）With the second piezo ceramic element（4）Electrically connected with processor.Using this camera module, not only regulated efficiency is higher, and can be also adjusted after complete machine is assembled.
Description
Technical field
The present invention relates to camera technical field, more particularly to a kind of camera module and its controlling party of variable optical axis
Method.
Background technology
In order to lift quality of taking pictures, increasing camera module designs either Array Design using double shootings, by
In needing to synthesize the image of multiple camera modules, so needing to carry out management and control to the optical axis deviation of camera module.
If the optical axis deviation between single camera module is excessive, image synthesis can be caused to go wrong.
The method of adjustment optical axis is in camera module assembling process at present, two modules is carried out by AA boards real
When adjustment contraposition, then assembling fixes, it is fixed after module optical axis can not be adjusted again.So not only production efficiency is low, and
And the optical axis after module group assembling can only be ensured, and if camera module optical axis when complete machine is assembled is changed, nothing
Method is readjusted.
The content of the invention
A kind of technical problem to be solved by this invention is：A kind of camera module of variable optical axis is provided, use is this
Not only regulated efficiency is higher for camera module, and can be also adjusted after complete machine is assembled.
A kind of technical scheme of the present invention is：A kind of camera module of variable optical axis, including mounting bracket with
And two single camera modules in mounting bracket are arranged on, it also includes processor, and is set between two single camera modules
There is the first piezo ceramic element, the second piezo ceramic element is provided between one of single camera module and mounting bracket, and
First piezo ceramic element electrically connects with the second piezo ceramic element with processor.
Using above structure compared with prior art, the present invention has advantages below：Between two single camera modules
And between a single camera module and mounting bracket piezoelectric ceramics is set wherein, so when camera module assemble it is whole
Optical axis is by processor there occurs that can control being adjusted for piezoelectric ceramics after change during machine, so not only regulated efficiency compared with
Height, and can be also adjusted after assembling complete machine.
Preferably, the first piezo ceramic element and the second piezo ceramic element include four piezoelectric ceramics bars, and
Four rectangular distributions of piezoelectric ceramics bar, and every piezoelectric ceramics bar electrically connects with processor.Each piezo ceramic element
Four piezoelectric ceramics bars of rectangular distribution are respectively provided with, it is more convenient accurate when being so adjusted.
Another technical problem to be solved by this invention is：A kind of controlling party of the camera module of variable optical axis is provided
Method, using this control method, not only regulated efficiency is higher, and can be also adjusted after complete machine is assembled.
Another technical solution of the present invention is：A kind of control method of the camera module of variable optical axis, it
Comprise the following steps：
S1, using imaging sensor detect camera module, calculate two single camera modules between centre-to-centre spacing and X, Y, Z
Direction of principal axis deviant；
S2, using it is double take the photograph shooting camera module chart scheme, according between the chart figures image and standard video figure of shooting
Difference calculate two single camera modules between angle of inclination and the anglec of rotation；
The data that S3, processor obtain according to step S1 and S2, then adjust the first piezo ceramic element and the second piezoelectricity pottery
Porcelain component, and then realize and the optical axis of camera module is adjusted.
The angle of inclination between two single camera modules of calculating in step S2 mainly includes the following steps that：
S21, crawl chart figure images；
S22, the center for searching the figure that S21 is grabbed；
S23, the center found is compared with the center of standard video figure, calculates difference；
S24, angle of inclination is calculated according to the obtained differences of step S23.
The anglec of rotation between two single camera modules of calculating in step S2 mainly includes the following steps that：
S25, crawl chart figure images；
The position of point on S26, selection chart figures on one of direction,
S27, the point of selection is compared with the point on standard video figure, calculates difference, finally obtain the anglec of rotation；
S28, repeat step S27 and step S28, until obtaining the anglec of rotation on four direction, then take this four direction
The average value of the anglec of rotation.
Using above method compared with prior art, the present invention has advantages below：Obtained by calculating some data
Offset data between two single camera modules, then piezoelectric ceramics is controlled to carry out further according to obtained offset data
Adjustment.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the camera module of variable optical axis of the present invention.
Fig. 2 is examined for step S1 in a kind of control method of the camera module of variable optical axis of the present invention using imaging sensor
Survey the schematic diagram of camera module.
Fig. 3 takes the photograph shooting shooting for step S2 in a kind of control method of the camera module of variable optical axis of the present invention using double
The schematic diagram of the chart figures of head mould group.
Fig. 4 specifically calculates angle of inclination for step S2 in a kind of control method of the camera module of variable optical axis of the present invention
Schematic diagram.
Fig. 5 specifically calculates the anglec of rotation for step S2 in a kind of control method of the camera module of variable optical axis of the present invention
Schematic diagram.
As shown in the figure：1st, mounting bracket；2nd, single camera module；3rd, the first piezo ceramic element；4th, the second piezoelectric ceramics
Component.
Embodiment
The present invention is described further with embodiment below in conjunction with accompanying drawing, but the present invention be not limited only to it is following
Embodiment.
A kind of camera module of variable optical axis, including mounting bracket 1 and be arranged in mounting bracket 1 two singly take the photograph
As head mould group 2, it is characterised in that：It also includes processor, and the first piezoelectric ceramics group is provided between two single camera modules
Part 3, the second piezo ceramic element 4, and the first piezoelectric ceramics group are provided between one of single camera module and mounting bracket
Part 3 electrically connects with the second piezo ceramic element 4 with processor.
First piezo ceramic element 3 and the second piezo ceramic element 4 include four piezoelectric ceramics bars, and four piezoelectricity
The ceramic rectangular distribution of bar, and every piezoelectric ceramics bar electrically connects with processor.The effect of first piezo ceramic element 3 is to make
The single camera module on the right moves along Y-axis and Z axis, and the effect of the second piezo ceramic element 4 is to make the single camera on the right
Module moves along the x-axis.
A kind of control method of the camera module of variable optical axis, it comprises the following steps：
S1, using imaging sensor detect camera module, calculate two single camera modules between centre-to-centre spacing and X, Y, Z
Direction of principal axis deviant；It is to detect camera module with imaging sensor as shown in Figure 2,
S2, using it is double take the photograph shooting camera module chart scheme, according between the chart figures image and standard video figure of shooting
Difference calculate two single camera modules between angle of inclination and the anglec of rotation；It is to be taken the photograph with pair taking the photograph shooting as shown in Figure 3
As the chart of head mould group schemes；
The data that S3, processor obtain according to step S1 and S2, then adjust the first piezo ceramic element and the second piezoelectricity pottery
Porcelain component, and then realize and the optical axis of camera module is adjusted.Piezoelectric ceramics has electrostriction effect, is acted in positive field
Under, piezoelectric ceramics can extend, and under reversed electric field effect, piezoelectric ceramics will shrink.Acted on by the electrostriction of piezoelectric ceramics,
Realize and the optical axis of single camera module is adjusted.
The angle of inclination between two single camera modules of calculating in step S2 mainly includes the following steps that：
S21, crawl chart figure images；
S22, the center for searching the figure that S21 is grabbed；
S23, the center found is compared with the center of standard video figure, calculates difference；
S24, angle of inclination is calculated according to the obtained differences of step S23.
It is as shown in Figure 4 to obtain the schematic diagram at angle of inclination, its specific calculation procedure includes：
Difference, difference=ideal position-actual measurement location are calculated first, ideal position is the position in target chart in Fig. 4,
Actual measurement location is the position in the influence grabbed in Fig. 4；
Then camera lens magnifying power is calculated, camera lens magnifying power=focal length/(object distance-focal length), its mid-focal length is that camera lens carries in itself,
Object distance is the distance between camera lens as shown in Figure 4 and figure；
Calculate image sensor sense difference, image sensor sense difference=difference * imaging sensor parameters again afterwards；Wherein image sensing
Device parameter is that imaging sensor is intrinsic；
Then destination end difference, target difference=imaging sensor difference/camera lens magnifying power are calculated；
Finally obtain angle of inclination, angle of inclination=atan（Destination end difference/object distance）.
The anglec of rotation between two single camera modules of calculating in step S2 mainly includes the following steps that：
S25, crawl chart figure images；
The position of point on S26, selection chart figures on one of direction,
S27, the point of selection is compared with the point on standard video figure, calculates difference, finally obtain the anglec of rotation；
S28, repeat step S27 and step S28, until obtaining the anglec of rotation on four direction, then take this four direction
The average value of the anglec of rotation.
It is as shown in Figure 5 to obtain the schematic diagram of the anglec of rotation, its specific calculation procedure includes：
The anglec of rotation=atan（Ydist/Xdist）.
Specifically method of adjustment is：First piezo ceramic element includes from left to right, being then followed successively by 101 from top to bottom,
102,103,104 four piezoelectric ceramics bars, the second piezo ceramic element include from left to right, being then followed successively by 105 from top to bottom,
106,107,108 four piezoelectric ceramics bars.
When the optical axis of bimodulus group needs to adjust along X-axis, add reversely to 105,106 plus positive field, while to 107,108
Electric field, the optical axis of the single camera module on the right will be offset along X-axis；If necessary to be adjusted to opposite direction, then add to 105,106
Reversed electric field, while to 107,108 plus positive field.
When the optical axis of bimodulus group needs to adjust along Y-axis, add reversely to 101,102 plus positive field, while to 103,104
Electric field, the optical axis of the single camera module on the right will be offset along X-axis；If necessary to be adjusted to opposite direction, then add to 101,102
Reversed electric field, while to 103,104 plus positive field.
When the optical axis of bimodulus group needs to adjust along Z axis, add reversely to 101,103 plus positive field, while to 102,104
Electric field, the optical axis of the single camera module on the right will be offset along X-axis；If necessary to be adjusted to opposite direction, then add to 101,103
Reversed electric field, while to 102,104 plus positive field.
Claims (5)
1. a kind of camera module of variable optical axis, including mounting bracket（1）And it is arranged on mounting bracket（1）Two interior lists
Camera module（2）, it is characterised in that：It also includes processor, and the first pressure is provided between described two single camera modules
Electroceramics component（3）, the second piezo ceramic element is provided between one of single camera module and mounting bracket（4）,
And first piezo ceramic element（3）With the second piezo ceramic element（4）Electrically connected with processor.
A kind of 2. camera module of variable optical axis according to claim 1, it is characterised in that：First piezoelectric ceramics
Component（3）And second piezo ceramic element（4）Include four piezoelectric ceramics bars, and four piezoelectric ceramics bars are rectangular
Distribution, and every piezoelectric ceramics bar electrically connects with processor.
3. a kind of control method of the camera module of variable optical axis, it is characterised in that it comprises the following steps：
S1, using imaging sensor detect camera module, calculate two single camera modules between centre-to-centre spacing and X, Y, Z
Direction of principal axis deviant；
S2, using it is double take the photograph shooting camera module chart scheme, according between the chart figures image and standard video figure of shooting
Difference calculate two single camera modules between angle of inclination and the anglec of rotation；
The data that S3, processor obtain according to step S1 and S2, then adjust the first piezo ceramic element and the second piezoelectricity pottery
Porcelain component, and then realize and the optical axis of camera module is adjusted.
A kind of 4. control method of the camera module of variable optical axis according to claim 3, it is characterised in that step S2
In two single camera modules of calculating between angle of inclination mainly include the following steps that：
S21, crawl chart figure images；
S22, the center for searching the figure that S21 is grabbed；
S23, the center found is compared with the center of standard video figure, calculates difference；
S24, angle of inclination is calculated according to the obtained differences of step S23.
A kind of 5. control method of the camera module of variable optical axis according to claim 3, it is characterised in that step S2
In two single camera modules of calculating between the anglec of rotation mainly include the following steps that：
S25, crawl chart figure images；
The position of point on S26, selection chart figures on one of direction,
S27, the point of selection is compared with the point on standard video figure, calculates difference, finally obtain the anglec of rotation；
S28, repeat step S27 and step S28, until obtaining the anglec of rotation on four direction, then take this four direction
The average value of the anglec of rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711261071.7A CN107864338B (en) | 2017-12-04 | 2017-12-04 | Camera module with variable optical axis and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711261071.7A CN107864338B (en) | 2017-12-04 | 2017-12-04 | Camera module with variable optical axis and control method thereof |
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| Publication Number | Publication Date |
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| CN107864338A true CN107864338A (en) | 2018-03-30 |
| CN107864338B CN107864338B (en) | 2020-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711261071.7A Active CN107864338B (en) | 2017-12-04 | 2017-12-04 | Camera module with variable optical axis and control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021047635A1 (en) * | 2019-09-12 | 2021-03-18 | 华为技术有限公司 | Photographing module and mobile terminal |
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| CN103792950A (en) * | 2014-01-06 | 2014-05-14 | 中国航空无线电电子研究所 | Three-dimensional shooting optical error correcting device and method based on piezoelectric ceramics |
| CN105607409A (en) * | 2016-01-07 | 2016-05-25 | 信利光电股份有限公司 | Image collection device for correction of dual-camera module and application method of image collection device |
| CN106060399A (en) * | 2016-07-01 | 2016-10-26 | 信利光电股份有限公司 | Automatic AA method and device for double cameras |
| CN205754577U (en) * | 2016-06-29 | 2016-11-30 | 郭晓峰 | A kind of monitoring camera of new structure |
| CN107968853A (en) * | 2017-11-20 | 2018-04-27 | 深圳市金立通信设备有限公司 | A kind of device and terminal device for correcting dual camera |
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2017
- 2017-12-04 CN CN201711261071.7A patent/CN107864338B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010041030A (en) * | 2008-07-10 | 2010-02-18 | Murata Mfg Co Ltd | Multilayer ceramic electronic component |
| CN101872057A (en) * | 2009-04-27 | 2010-10-27 | 鸿富锦精密工业（深圳）有限公司 | Focusing structure and lens module with the focusing structure |
| CN102200673A (en) * | 2010-03-24 | 2011-09-28 | 富士胶片株式会社 | Position adjustment method for shooting element, camera module and manufacture method and device thereof |
| CN103792950A (en) * | 2014-01-06 | 2014-05-14 | 中国航空无线电电子研究所 | Three-dimensional shooting optical error correcting device and method based on piezoelectric ceramics |
| CN105607409A (en) * | 2016-01-07 | 2016-05-25 | 信利光电股份有限公司 | Image collection device for correction of dual-camera module and application method of image collection device |
| CN205754577U (en) * | 2016-06-29 | 2016-11-30 | 郭晓峰 | A kind of monitoring camera of new structure |
| CN106060399A (en) * | 2016-07-01 | 2016-10-26 | 信利光电股份有限公司 | Automatic AA method and device for double cameras |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021047635A1 (en) * | 2019-09-12 | 2021-03-18 | 华为技术有限公司 | Photographing module and mobile terminal |
| US12010429B2 (en) | 2019-09-12 | 2024-06-11 | Huawei Technologies Co., Ltd. | Camera module and mobile terminal |
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| Publication number | Publication date |
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| CN107864338B (en) | 2020-02-21 |
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