CN107959781B - Camera module and adjustment control method thereof - Google Patents
Camera module and adjustment control method thereof Download PDFInfo
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- CN107959781B CN107959781B CN201711307694.3A CN201711307694A CN107959781B CN 107959781 B CN107959781 B CN 107959781B CN 201711307694 A CN201711307694 A CN 201711307694A CN 107959781 B CN107959781 B CN 107959781B
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- photosensitive element
- camera module
- curvature
- field
- lens
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/002—Diagnosis, testing or measuring for television systems or their details for television cameras
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
Abstract
The application discloses camera module and adjustment control method thereof, including: photosensitive element to and the photosensitive element driver who is connected with photosensitive element still includes: a lens positioned above the photosensitive element; and the photosensitive element driver is used for adjusting the field curvature of the photosensitive element according to the imaging of the camera module so as to enable the field curvature of the photosensitive element to be consistent with the field curvature of the lens. The setting of photosensitive element driver makes the field curvature of photosensitive element and the field curvature of camera lens reach unanimity like this, can improve the module of making a video recording and image because of the analytic power problem of the module formation of image that the lens field curvature brought, has reduced the distortion, has reduced manufacturing cost.
Description
Technical Field
The present invention relates to the field of camera shooting technologies, and in particular, to a camera shooting module and an adjustment control method thereof.
Background
The photosensitive element (sensor) of the existing camera module is planar, as shown in fig. 1, the sensor 01 is directly carried on a Printed Circuit Board 02(Printed Circuit Board, PCB) by glue, and the design can cause the module to carry a tilt value because the glue is not uniform, and the field curvature of the sensor plane can not be adjusted at the same time.
Moreover, when the sensor images through the spherical lens, the sensor cannot image completely due to different optical path differences of the sensor through the spherical lens, and the phenomena of clear center, fuzzy four corners, distortion and the like exist.
Therefore, the technical problems to be solved by those skilled in the art are urgently needed to solve the above-mentioned problems of imaging distortion and high cost of the camera module.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a camera module and an adjustment control method thereof, which can improve the resolution problem of the camera module caused by the curvature of field of the lens, reduce distortion, and reduce the production cost. The specific scheme is as follows:
a camera module, comprising: photosensitive element to and with photosensitive element driver that photosensitive element is connected still includes: a lens positioned above the photosensitive element;
and the photosensitive element driver is used for adjusting the field curvature of the photosensitive element according to the imaging of the camera module so as to enable the field curvature of the photosensitive element to be consistent with the field curvature of the lens.
Preferably, in the camera module provided in the embodiment of the present invention, the camera module further includes: a printed circuit board;
the photosensitive element driver is located between the photosensitive chip and the printed circuit board.
Preferably, in the camera module according to an embodiment of the present invention, the photosensitive element driver is located at a corresponding position in a peripheral area of the photosensitive chip.
Preferably, in the camera module provided in an embodiment of the present invention, the photosensitive element driver is specifically located at a corresponding position of four corner regions of the photosensitive chip.
Preferably, in the camera module according to an embodiment of the present invention, the photosensitive element driver is specifically configured to determine whether the curvature of field of the lens deviates positively or negatively according to an image of the camera module, and adjust the curvature of field of the photosensitive element by adjusting an inclination of four corner regions of the photosensitive element, so that the curvature of field of the photosensitive element is consistent with the curvature of field of the lens.
Preferably, in the camera module according to an embodiment of the present invention, the photosensitive element driver is a motor driver.
The embodiment of the present invention further provides an adjustment control method for the camera module, which includes:
a photosensitive element driver is added in the camera module; the photosensitive element driver is connected with the photosensitive element;
the camera module forms images;
and according to the imaging of the camera module, adjusting the field curvature of the photosensitive element through the photosensitive element driver so as to enable the field curvature of the photosensitive element to be consistent with the field curvature of the lens.
Preferably, in the method for adjusting and controlling a camera module according to an embodiment of the present invention, when the photosensitive element driver is specifically located at a corresponding position of four corner regions of the photosensitive chip, according to an image of the camera module, the photosensitive element driver adjusts the curvature of field of the photosensitive element so that the curvature of field of the photosensitive element is consistent with the curvature of field of the lens, which specifically includes:
judging whether the curvature of field of the lens is biased to be positive or negative according to the image of the camera module;
and adjusting the inclination of the four corner regions of the photosensitive element through the photosensitive element driver to adjust the field curvature of the photosensitive element so as to enable the field curvature of the photosensitive element to be consistent with the field curvature of the lens.
The invention provides a camera module and an adjustment control method thereof, comprising the following steps: photosensitive element to and the photosensitive element driver who is connected with photosensitive element still includes: a lens positioned above the photosensitive element; and the photosensitive element driver is used for adjusting the field curvature of the photosensitive element according to the imaging of the camera module so as to enable the field curvature of the photosensitive element to be consistent with the field curvature of the lens. The setting of photosensitive element driver makes the field curvature of photosensitive element and the field curvature of camera lens reach unanimity like this, can improve the module of making a video recording and image because of the analytic power problem of the module formation of image that the lens field curvature brought, has reduced the distortion, has reduced manufacturing cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a camera module in the prior art;
fig. 2 is a schematic structural diagram of a camera module according to an embodiment of the present invention;
fig. 3 is a flowchart of an adjustment control method of a structural diagram according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present invention provides a camera module, as shown in fig. 2, comprising: photosensitive element 1, and photosensitive element driver 2 connected with photosensitive element 1, further include: a lens (not shown in the figure) located above the photosensitive element 1;
and the photosensitive element driver is used for adjusting the field curvature of the photosensitive element according to the imaging of the camera module so as to enable the field curvature of the photosensitive element to be consistent with the field curvature of the lens.
In the camera module according to the embodiment of the present invention, the photosensitive device driver adjusts the curvature of field of the photosensitive device according to the image of the camera module, so that the curvature of field of the photosensitive device is consistent with the curvature of field of the lens. The setting of photosensitive element driver makes the field curvature of photosensitive element and the field curvature of camera lens reach unanimity like this, can improve the module of making a video recording and image because of the analytic power problem of the module formation of image that the lens field curvature brought, has reduced the distortion, has reduced manufacturing cost.
It should be noted that curvature of field is one of aberrations, and most of practical optical systems cannot be approximated as ideal imaging of a point object point image on which a beamlet is incident, and aberration occurs. Lenses have varying degrees of curvature of field due to inherent design imperfections and manufacturing tolerances. When the lens has field curvature, although each object point can form a clear image point, the whole image plane is not on a plane but on a revolving curved surface, so that images formed on the photosensitive element by the lens are not on the same plane.
In a specific implementation, as shown in fig. 2, the camera module provided in the embodiment of the present invention further includes: a printed circuit board 3; the photosensitive element driver 2 is located between the photosensitive chip 1 and the printed circuit board 3.
Preferably, in the implementation, the photosensitive element driver 2 may be located at a corresponding position in the peripheral region of the photosensitive chip 1.
Optimally, when implemented, the photosensitive element driver 2 may be specifically located at the corresponding position of the four corner regions of the photosensitive chip 1.
Further, in specific implementation, when the photosensitive element driver is specifically located at a corresponding position of the four corner regions of the photosensitive chip, the photosensitive element driver is specifically configured to determine whether the field curvature of the lens is biased positive or negative according to the imaging of the camera module, and adjust the field curvature of the photosensitive element by adjusting the inclination of the four corner regions of the photosensitive element, so that the field curvature of the photosensitive element is consistent with the field curvature of the lens.
In practical implementation, in the camera module provided in the embodiment of the present invention, the photosensitive element driver may be a motor driver, that is, similar to the driving motor.
Based on the same inventive concept, the embodiment of the present invention further provides an adjustment control method for the camera module, which is provided by the embodiment of the present invention, and because the principle of solving the problem of the method is similar to that of the camera module, the implementation of the method can refer to the implementation of the camera module, and repeated details are not repeated.
In specific implementation, the method for adjusting and controlling a camera module according to an embodiment of the present invention, as shown in fig. 3, includes the following steps:
s301, adding a photosensitive element driver in the camera module; the photosensitive element driver is connected with the photosensitive element;
s302, imaging by the camera module;
and S303, adjusting the field curvature of the photosensitive element through the photosensitive element driver according to the imaging of the camera module so as to enable the field curvature of the photosensitive element to be consistent with the field curvature of the lens.
In the method for adjusting and controlling the camera module provided by the embodiment of the invention, the field curvature of the photosensitive element can be consistent with the field curvature of the lens, so that the problem of resolution of the imaging of the camera module caused by the field curvature of the lens is solved, the distortion is reduced, and the production cost is reduced.
In a specific implementation, in the method for adjusting and controlling a camera module according to an embodiment of the present invention, when the photosensitive element driver is specifically located at a corresponding position of four corner regions of the photosensitive chip, step S303 adjusts the curvature of field of the photosensitive element through the photosensitive element driver according to an image of the camera module, so that the curvature of field of the photosensitive element is consistent with the curvature of field of the lens, which may specifically include the following steps:
firstly, judging whether the curvature of field of the lens is biased to be positive or negative according to the imaging of the camera module;
then, the field curvature of the photosensitive element is adjusted by adjusting the inclination of the four corner regions of the photosensitive element through a photosensitive element driver so as to enable the field curvature of the photosensitive element to be consistent with the field curvature of the lens.
The embodiment of the invention provides a camera module and an adjustment control method thereof, wherein the camera module comprises the following steps: photosensitive element to and the photosensitive element driver who is connected with photosensitive element still includes: a lens positioned above the photosensitive element; and the photosensitive element driver is used for adjusting the field curvature of the photosensitive element according to the imaging of the camera module so as to enable the field curvature of the photosensitive element to be consistent with the field curvature of the lens. The setting of photosensitive element driver makes the field curvature of photosensitive element and the field curvature of camera lens reach unanimity like this, can improve the module of making a video recording and image because of the analytic power problem of the module formation of image that the lens field curvature brought, has reduced the distortion, has reduced manufacturing cost.
Finally, it is further noted that, herein, relational terms are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The camera module and the adjustment control method thereof provided by the invention are described in detail, a specific example is applied in the text to explain the principle and the implementation mode of the invention, and the description of the above embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (5)
1. The utility model provides a module of making a video recording which characterized in that includes: photosensitive element to and with photosensitive element driver that photosensitive element is connected still includes: the lens is positioned above the photosensitive element, and the printed circuit board is positioned above the photosensitive element;
the photosensitive element driver is used for adjusting the field curvature of the photosensitive element according to the imaging of the camera module so as to enable the field curvature of the photosensitive element to be consistent with the field curvature of the lens;
the photosensitive element driver is positioned between the photosensitive chip and the printed circuit board; the photosensitive element driver is positioned at a corresponding position of the peripheral area of the photosensitive chip; the photosensitive element driver is specifically positioned at the corresponding position of the four corner areas of the photosensitive chip.
2. The camera module of claim 1, wherein the photosensitive element driver is specifically configured to determine whether the curvature of field of the lens is positive or negative according to the image of the camera module, and adjust the curvature of field of the photosensitive element by adjusting the inclination of the four corner regions of the photosensitive element, so that the curvature of field of the photosensitive element is consistent with the curvature of field of the lens.
3. The camera module of claim 1 or 2, wherein the photosensitive element driver is a motor driver.
4. A method for controlling adjustment of a camera module according to any one of claims 1 to 3, comprising:
a photosensitive element driver is added in the camera module; the photosensitive element driver is connected with the photosensitive element; the photosensitive element driver is positioned between the photosensitive chip and the printed circuit board; the photosensitive element driver is positioned at a corresponding position of the peripheral area of the photosensitive chip; the photosensitive element driver is specifically positioned at the corresponding position of the four corner areas of the photosensitive chip;
the camera module forms images;
and according to the imaging of the camera module, adjusting the field curvature of the photosensitive element through the photosensitive element driver so as to enable the field curvature of the photosensitive element to be consistent with the field curvature of the lens.
5. The method for controlling adjustment of a camera module according to claim 4, wherein the adjusting of the curvature of field of the photosensitive element by the photosensitive element driver according to the image of the camera module so that the curvature of field of the photosensitive element is consistent with the curvature of field of the lens comprises:
judging whether the curvature of field of the lens is biased to be positive or negative according to the image of the camera module;
and adjusting the inclination of the four corner regions of the photosensitive element through the photosensitive element driver to adjust the field curvature of the photosensitive element so as to enable the field curvature of the photosensitive element to be consistent with the field curvature of the lens.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711307694.3A CN107959781B (en) | 2017-12-11 | 2017-12-11 | Camera module and adjustment control method thereof |
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| CN201711307694.3A CN107959781B (en) | 2017-12-11 | 2017-12-11 | Camera module and adjustment control method thereof |
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| CN107959781A CN107959781A (en) | 2018-04-24 |
| CN107959781B true CN107959781B (en) | 2020-07-31 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111263136B (en) * | 2018-11-30 | 2022-04-01 | 欧菲影像技术（广州）有限公司 | Method for detecting imaging field curvature, method for detecting imaging inclination and imaging detector |
| CN112887518A (en) * | 2019-11-29 | 2021-06-01 | 南昌欧菲光电技术有限公司 | Camera module, preparation method thereof and intelligent terminal |
| CN113726985B (en) * | 2020-05-21 | 2022-09-06 | 宁波舜宇光电信息有限公司 | Photosensitive chip assembly, camera module and terminal equipment |
| CN114666467A (en) * | 2020-12-23 | 2022-06-24 | 维沃移动通信有限公司 | Camera shooting assembly and electronic equipment |
| CN113315909B (en) * | 2021-05-06 | 2022-05-17 | 湖北三赢兴光电科技股份有限公司 | Quick focusing and laminating method based on camera module AA (advanced manufacturing technology) process |
| CN114500801A (en) * | 2022-01-19 | 2022-05-13 | 横店集团东磁有限公司 | Camera module and packaging method thereof |
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| US10373995B2 (en) * | 2014-09-19 | 2019-08-06 | Microsoft Technology Licensing, Llc | Image sensor bending using tension |
| US9570488B2 (en) * | 2014-09-19 | 2017-02-14 | Microsoft Technology Licensing, Llc | Image sensor bending by induced substrate swelling |
| TWI607555B (en) * | 2015-05-28 | 2017-12-01 | 精材科技股份有限公司 | Image sensing device |
| US9992433B2 (en) * | 2015-08-21 | 2018-06-05 | Electronics And Telecommunications Research Institute | Image processing apparatus and control method thereof |
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| CN102074565A (en) * | 2010-10-19 | 2011-05-25 | 任永斌 | Concave-surface image sensor |
| CN104580869A (en) * | 2013-10-10 | 2015-04-29 | 华为技术有限公司 | Light field camera |
| CN106033763A (en) * | 2014-10-31 | 2016-10-19 | 爱思开海力士有限公司 | Curved image sensor, method for fabricating the same, and electronic device having the same |
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